Heated aerosol delivery articles and products

Abstract

To provide a technique having excellent aerosol delivery amount and allowing smooth insertion of a heater into a tobacco filler, in a heated tobacco comprising a tobacco rod including the tobacco filler containing a tobacco raw material and an aerosol-generating substrate, and a wrapping paper for wrapping the tobacco filler, and production method thereof.SOLUTION: A heated tobacco comprises a tobacco rod including a tobacco filler and a wrapping paper for wrapping the tobacco filler, where the tobacco filler includes an aerosol-generating substrate, a tobacco material, and a plurality of tobacco strands having a strand shape. The plurality of tobacco strands are aligned and arranged to extend along a longitudinal direction of the tobacco rod.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a heated tobacco product, a method and an apparatus for manufacturing a tobacco rod for heated tobacco. [Background technology]

[0002] A known heated tobacco product has a tobacco rod formed by filling the inside of a cigarette paper with a tobacco filler material containing tobacco raw materials (e.g., tobacco shreds, tobacco granules, reconstituted tobacco material, etc.) and an aerosol-generating base material (glycerin, propylene glycol, etc.) (see, for example, Patent Document 1). This type of heated tobacco product is a type of tobacco article in which the tobacco filler is heated by a heater in a heating device without being burned, and the aerosol generated in the tobacco filler is delivered to the user. Heaters of various shapes, such as blade-shaped and rod-shaped heaters, have been put into practical use, and when in use, the tobacco rod is attached to the heating device by inserting the heater from the tip end of the tobacco rod. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5920744 [Patent Document 2] Patent No. 6000451 [Patent Document 3] Patent No. 6017546 [Patent Document 4] Japanese Patent Application Publication No. 62-272962 Summary of the Invention [Problem to be solved by the invention]

[0004] Here, in the tobacco rod of a conventional heated tobacco product, the tobacco material in the tobacco filler is randomly oriented, which can make it difficult to smoothly insert the heater into the tobacco filler when the heated tobacco product is attached to a heating device. Furthermore, when a tobacco rod for a heated tobacco product is formed using a tobacco filler in which the tobacco material is randomly oriented, the aerosol generated by the volatilization of the aerosol-generating base material is exposed to the low-temperature portion of the randomly oriented tobacco material and is easily condensed or filtered by the tobacco material, which can reduce the amount of aerosol delivered to the oral cavity.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and its purpose is to provide a technology for a heated tobacco product and a manufacturing method thereof, which has a tobacco rod having a tobacco filler material containing tobacco raw materials and an aerosol-generating substrate, and a cigarette paper around which the tobacco filler material is wound, and which has an excellent aerosol delivery rate and enables smooth insertion of a heater into the tobacco filler material. [Means for solving the problem]

[0006] In order to solve the above problem, the present invention employs a structure in which a large number of long tobacco strands, obtained by forming tobacco raw material into strands, are arranged so that they extend along the longitudinal axis of the tobacco rod.

[0007] More specifically, the present invention relates to a method for producing a tobacco rod for a heated tobacco product, the method comprising: a cutting step of conveying a tobacco raw material sheet along a conveying path while continuously cutting the tobacco raw material sheet along the conveying path into a plurality of continuous tobacco strands; and a method of forming a rod-shaped continuous tobacco rod by wrapping the plurality of continuous tobacco strands obtained in the cutting step in a state where the continuous tobacco strands are aligned along the conveying path with cigarette paper. and a cutting step of sequentially cutting the continuous tobacco rod obtained in the forming step into individual tobacco rods.

[0008] Here, the tobacco material sheet may be obtained by forming a tobacco material containing an aerosol-generating base material into a sheet.

[0009] The tobacco raw material sheet may be wound around a bobbin, and the tobacco raw material sheet may be continuously unwound from the bobbin and transported along a transport path.

[0010] In the method for producing a tobacco rod for a heated tobacco product, the cutting step may involve cutting the tobacco raw material sheet so as to obtain a plurality of continuous tobacco strands, each having a uniform width.

[0011] Furthermore, the manufacturing method for producing a tobacco rod for heated tobacco products may further include a calendering process for increasing the density of the tobacco raw material sheet by calendering the tobacco raw material sheet, and in the cutting process, the tobacco raw material sheet after the calendering process may be conveyed along a conveying path while being continuously cut along the conveying path into a plurality of continuous tobacco strands.

[0012] Furthermore, the manufacturing method for producing a tobacco rod for a heated tobacco product may further include an adding step of adding at least one of a flavoring and an aerosol-generating substrate to the continuous tobacco strands obtained in the cutting step. In this case, the adding step may include adding at least one of a flavoring and an aerosol-generating substrate to the continuous tobacco strands during the process of wrapping the continuous tobacco strands with the cigarette paper in the forming step.

[0013] The present invention also provides a manufacturing device for manufacturing tobacco rods for heated tobacco products, the device comprising: a bobbin around which a tobacco raw material sheet is wound; a cutting section that is disposed on a conveying path for the tobacco raw material sheet that is continuously unwound from the bobbin, and that cuts the tobacco raw material sheet continuously along the conveying path into a plurality of continuous tobacco strands in the shape of a strand; a forming section that is disposed on the conveying path downstream of the cutting section, and that forms a rod-shaped continuous tobacco rod by wrapping the plurality of continuous tobacco strands in cigarette paper while aligning them along the conveying path; and a cutting section that is disposed on the conveying path downstream of the forming section, and that cuts the continuous tobacco rod into individual tobacco rods having predetermined lengths.

[0014] Here, the cutting section may cut the tobacco raw material sheet so as to obtain a plurality of continuous tobacco strands, each having a constant width.

[0015] The cutting section may also have a cutter arranged parallel to the conveying path, and the tobacco raw material sheet may be cut continuously into a plurality of continuous tobacco strands by the cutter as the tobacco raw material sheet passes along the conveying path.

[0016] The present invention also provides a heated tobacco product comprising a tobacco rod having a tobacco filler and cigarette paper around which the tobacco filler is wound, wherein the tobacco filler has a plurality of tobacco strands that contain an aerosol-generating substrate and tobacco raw material and have a strand shape, and the plurality of tobacco strands are aligned and arranged so as to extend along the longitudinal direction of the tobacco rod.

[0017] Here, the tobacco strands may be arranged parallel to each other along the longitudinal direction of the tobacco rod.

[0018] The tobacco strand may be disposed so as to extend from the front end to the rear end of the tobacco rod.

[0019] The tobacco strand may also have a rectangular shape.

[0020] The tobacco strand may have a rectangular cross section perpendicular to its longitudinal axis.

[0021] Furthermore, the tobacco strand may have a cross section perpendicular to its longitudinal axis having a width of 0.4 mm or more and 3 mm or less.

[0022] Furthermore, the tobacco strand may have a cross-sectional thickness perpendicular to its longitudinal axis of 0.02 mm or more and 1.3 mm or less.

[0023] Furthermore, the tobacco strand may have a length dimension along its longitudinal axis of 10 mm or more and 50 mm or less.

[0024] The diameter of the tobacco rod may be 5 mm or more and 8 mm or less.

[0025] The tobacco strand may have a cross-sectional area perpendicular to its longitudinal direction that is constant over the entire length.

[0026] The tobacco rod may contain the aerosol-generating base material in an amount of 10 wt % or more and 25 wt % or less.

[0027] In addition, the heated tobacco may have a mouthpiece portion coaxially connected to the base end side of the tobacco rod, and the mouthpiece portion may include a cooling portion for cooling the volatile substance released from the aerosol-generating substrate.

[0028] The mouthpiece portion may also include a support portion that is arranged at a connection end that is connected to the base end side of the tobacco rod and that prevents the tobacco strand from being pushed into the area on the mouthpiece portion side.

[0029] The mouthpiece may also include a filter disposed on the mouth end side of the mouthpiece.

[0030] Further, the volume filling rate of the tobacco strands in the tobacco rod is 50 vol % or more. It may be 80 vol % or less.

[0031] Furthermore, when the heater of the heating device to which the heated tobacco is applied is an external heating heater, the volume filling rate of the tobacco strands occupying the tobacco rod may be 60 vol% or more and 80 vol% or less.

[0032] Furthermore, when the heater of the heating device to which the heated tobacco is applied is an internal heating heater, the volume filling rate of the tobacco strands occupying the tobacco rod may be 50 vol% or more and 75 vol% or less.

[0033] The present invention may also be a heated tobacco product including any of the above-described heated tobacco products and a heating device to which the heated tobacco product is applied.

[0034] In the heated tobacco product of the present invention, the heating device has a rod accommodating section into which the tobacco rod of the heated tobacco product can be attached, and a heater provided in the rod accommodating section, and when the heater is an internal heating heater that is inserted from the tip side of the tobacco rod when the tobacco rod is attached to the rod accommodating section, the volume filling rate of the tobacco strands occupying the tobacco rod when the tobacco rod is attached to the rod accommodating section may be 60 vol% or more and 80 vol% or less.

[0035] In the heated tobacco product according to the present invention, the ratio of the maximum diameter of the heater to the diameter of a cross section perpendicular to the longitudinal axis of the tobacco rod may be 0.3 or more and 0.6 or less.

[0036] The means for solving the problems in the present invention can be adopted in combination as much as possible. [Effects of the Invention]

[0037] According to the present invention, in a heated tobacco product comprising a tobacco filler material containing tobacco raw materials and an aerosol-generating substrate, and a tobacco rod having a cigarette paper around which the tobacco filler material is wound, a technology can be provided that has an excellent aerosol delivery rate, allows for smooth insertion of a heater into the tobacco filler material, and prevents the tobacco raw materials from being pushed in by the heater when the heater is inserted into the tobacco filler material. [Brief explanation of the drawings]

[0038] [Figure 1] FIG. 1 is a diagram schematically illustrating the internal structure of a heated tobacco product according to a first embodiment. [Figure 2] FIG. 2 is a perspective view showing an example of a tobacco strand. [Figure 3] FIG. 3 is a schematic diagram of a heating device to which heated tobacco products are applied. [Figure 4] FIG. 4 is a diagram showing a modified example of a heating device to which heated tobacco is applied. [Figure 5] FIG. 5 is a diagram showing a tobacco rod manufacturing apparatus according to the first embodiment. [Figure 6] FIG. 6 is a diagram showing a method for producing a tobacco rod according to the first embodiment. [Figure 7] FIG. 7 is a diagram showing the detailed structure of the slitter in the cutting section. [Figure 8] FIG. 8 is a diagram illustrating the calendering treatment of the tobacco raw material sheet. [Figure 9] FIG. 9 is a diagram illustrating a method for producing a tobacco raw material sheet by a papermaking method. [Figure 10] FIG. 10 is a diagram illustrating a method for producing a tobacco raw material sheet by a casting method. [Figure 11] FIG. 11 is a diagram showing a tobacco strand according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0039] Here, embodiments of the heated tobacco product, the method for manufacturing a tobacco rod for the heated tobacco product, and the manufacturing apparatus thereof according to the present invention will be described with reference to the drawings. Note that the dimensions, materials, shapes, relative positions, etc. of the components described in the present embodiments are not intended to limit the technical scope of the invention to those, unless otherwise specified.

[0040] <Embodiment 1> [Heated tobacco] FIG. 1 is a diagram showing a schematic internal structure of a heated tobacco product 1 according to embodiment 1. The heated tobacco product 1 heats a tobacco filler without burning it, and the tobacco filler generates heat. It is a type of tobacco product that delivers an aerosol containing the tobacco product to the user.

[0041] The heated tobacco product 1 includes a tobacco rod 2 and a mouthpiece 3, which are coaxially aligned. The heated tobacco product 1 has a mouth end 1a that the user inserts into the oral cavity during use and a tip 1b at the end opposite the mouth end 1a. The mouthpiece 3 includes a support 4, a cooling unit 5, and a filter 6, which are coaxially aligned, and these components are arranged in this order from the tip of the mouthpiece 3. The support 4, cooling unit 5, and filter 6 of the mouthpiece 3 are integrally wound by a wrapper 7. The tobacco rod 2 and the mouthpiece 3 are further connected together by being wound by tipping paper 8. However, portions of the support 4, cooling unit 5, and filter 6 that constitute the mouthpiece 3 may be integrally wound by the wrapper. In this case, the parts integrally wound by the wrapper and the other parts may be wound by one or more pieces of tipping paper. The symbol CL1 in FIG. 1 indicates the central axis of the heated tobacco product 1. Here, the tobacco rod 2 and mouthpiece portion 3 of the heated tobacco product 1 are arranged coaxially, and the central axis CL1 can be said to be the central axis of the tobacco rod 2 and the mouthpiece portion 3. In addition, reference numeral 2a in FIG. 1 denotes the front end surface of the tobacco rod 2, and reference numeral 2b denotes the rear end surface of the tobacco rod 2.

[0042] When using the heated tobacco product 1, the user inhales air from the tip 1b to the mouthpiece end 1a through the heated tobacco product 1. The tip 1b of the heated tobacco product 1 can be considered to be the tip or upstream end of the tobacco rod 2, and the mouthpiece end 1a of the heated tobacco product 1 can be considered to be the rear or downstream end of the mouthpiece 3.

[0043] The tobacco rod 2 is disposed at the tip 1b of the heated tobacco product 1. The tobacco rod 2 is a rod-shaped member formed by wrapping a tobacco filler material 21 containing tobacco raw materials and an aerosol-generating substrate in cigarette paper 22 so as to cover the sides of the tobacco filler material. In this embodiment, the tobacco filler material 21 includes a plurality of tobacco strands 23, which are tobacco raw materials containing an aerosol-generating substrate. As used herein, the term "strand-shaped" refers to a long, slender shape extending in a longitudinal direction perpendicular to a cross-section, and includes shapes such as a band, a strip, a string, and a rod. Furthermore, the term "strand-shaped" is not limited to a shape extending linearly in the longitudinal direction, but may also extend in a serpentine or wavy shape. The aerosol-generating substrate contained in the tobacco strands 23 of the tobacco filler material 21 is a substance that volatilizes and releases volatile substances upon heating with a heater, generating an aerosol when cooled. The type of aerosol-generating substrate is not particularly limited, and extracts from various natural products can be appropriately selected depending on the application. Examples of the aerosol-generating base material include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The tobacco strands 23 of the tobacco filler 21 may contain a flavoring. The type of flavoring is not particularly limited. In this embodiment, the content of the aerosol-generating base material in the tobacco rod 2 may be 10 wt % or more and 25 wt % or less.

[0044] FIG. 2 is a perspective view showing an example of a tobacco strand 23. In the example shown in FIG. 2, the tobacco strand 23 has a rectangular shape (for example, a thin rectangular parallelepiped shape). As shown in FIG. 2, the tobacco strand 23 can also be regarded as having a band shape. In the tobacco filler 21 of the tobacco rod 2 in this embodiment, a large number (plurality) of tobacco strands 23 are oriented and arranged, and each tobacco strand 23 is aligned so as to extend along the longitudinal direction (direction of the central axis CL1) of the tobacco rod 2. In the tobacco strand 23, the cross section perpendicular to the longitudinal direction is rectangular.

[0045] 2, reference numeral 23a denotes a front end surface of the tobacco strand 23, and reference numeral 23b denotes a rear end surface of the tobacco strand 23. The front end surface 23a of the tobacco strand 23 is the end surface facing the tip 1b of the heated tobacco product 1, and the rear end surface 23b of the tobacco strand 23 is the end surface facing the tip 1b of the heated tobacco product 1. It is the end face opposite to the front end face 23a in the longitudinal direction (extension direction) of the strand 23. In this embodiment, the rear end face 23b of the tobacco strand 23 is disposed opposite the front end face 23a of the support part 4, which is disposed at the front end of the mouthpiece part 3. Also, reference numeral 23c shown in FIG. 2 is a side face of the tobacco strand 23. The tobacco strand 23 shown in FIG. 2 has the same width and thickness dimensions from the front end face 23a to the rear end face 23b. In other words, the tobacco strand 23 shown in FIG. 2 has a uniform cross-sectional area over its entire length.

[0046] As shown in FIG. 1, the tobacco strands 23 are aligned so as to extend along the longitudinal axis of the tobacco rod 2, and are disposed with their side surfaces 23c facing each other. In the example shown in FIG. 1, the tobacco strands 23 are disposed parallel to each other along the longitudinal axis of the tobacco rod 2. The tobacco strands 23 are also disposed extending from the front end surface 2a to the rear end surface 2b of the tobacco rod 2. Reference numeral 25 shown in FIG. 1 denotes an aerosol flow path formed by the gaps between the tobacco strands 23. In this embodiment, the tobacco strands 23 are disposed parallel to each other along the longitudinal axis of the tobacco rod 2, and therefore the aerosol flow path 25 is formed so as to extend along the longitudinal axis of the tobacco rod 2, for example.

[0047] The tobacco strand 23 and the method for manufacturing the tobacco rod 2 including the tobacco strand 23 will be described in detail later. For example, the tobacco strand 23 can be obtained by forming a tobacco raw material containing an aerosol-generating substrate into a sheet, and then cutting the resulting tobacco raw material sheet by slitting it with a slitter or the like. The tobacco raw material sheet may be a so-called reconstituted tobacco sheet. The reconstituted tobacco sheet may be, for example, a sheet obtained by adding additives such as binders, gelling agents, crosslinking agents, flavorings, viscosity modifiers, humectants, and reinforcing materials to homogenized tobacco, kneading the mixture, and then forming and drying the mixture into a sheet using an appropriate method such as a papermaking method (papermaking method), a casting method (slurry method), a rolling method, or an extrusion method. Homogenized tobacco is a tobacco material obtained by crushing, grinding, and blending leaf tobacco, dried tobacco leaves, shredded tobacco, expanded tobacco, reconstituted tobacco, etc.

[0048] Next, the mouthpiece section 3 will be described. The support section 4 is located on the front end side of the mouthpiece section 3 and is a segment located at the connection end where the mouthpiece section 3 is connected to the tobacco rod 2. The support section 4 is located immediately downstream of the tobacco rod 2 and is disposed in contact with the rear end of the tobacco rod 2. The support section 4 may be, for example, a hollow cellulose acetate tube. In other words, the support section 4 may be a cylindrical cellulose acetate fiber bundle with a center hole formed through its cross section. The support section 4 may also be in other forms, such as a paper filter filled with cellulose fibers or a paper tube. Any paper tube with a certain thickness can effectively function as the support section 4. The support section 4 is a segment that prevents the tobacco filler 21 from being pushed downstream toward the cooling section 5 within the heated tobacco product 1 when an electric heater of a heating device to which the heated tobacco product 1 is applied is inserted into the tobacco rod 2. The support section 4 also functions as a spacer to separate the cooling section 5 of the heated tobacco product 1 from the tobacco rod 2.

[0049] The cooling section 5 is located immediately downstream of the support section 4 and is disposed in contact with the rear end of the support section 4. When the heated tobacco product 1 is in use, the volatile substances emitted from the tobacco rod 2 (tobacco filler 21) flow downstream along the cooling section 5. The volatile substances emitted from the tobacco rod 2 (tobacco filler 21) are cooled in the cooling section 5 to form an aerosol that is inhaled by the user. In the embodiment shown in FIG. 1, the cooling section 5 is formed by a hollow paper tube having ventilation holes 5a that allow external air to be introduced. However, the cooling section 5 does not have to have the ventilation holes 5a. The cooling section 5 may also have a heat-absorbing agent that is arranged so as not to interfere with the flow of the volatile substances and aerosol. For example, the cooling section may be formed by a filter material having a large number of flow paths (through holes) formed along the longitudinal direction (axial direction) of the mouthpiece section 3. 5 may be formed.

[0050] The filter unit 6 is a segment located at the rear end of the mouthpiece unit 3, i.e., on the mouthpiece end 1a side. The filter unit 6 may be located immediately downstream of the cooling unit 5 and may be disposed in contact with the rear end of the cooling unit 5. In the embodiment shown in FIG. 1, the filter unit 6 may include a filter material formed of, for example, cellulose acetate fibers formed into a cylindrical shape. The filter unit 6 may also be a center-hole filter, a paper filter filled with cellulose fibers, or a paper tube without a filter material. The filter unit 6 may be formed from a solid filter material with a filter material, a center-hole filter, a paper filter, or a paper tube without a filter material, or may be formed by selectively combining a plurality of these.

[0051] FIG. 3 is a schematic diagram of a heating device 100 to which the heated tobacco product 1 according to embodiment 1 is applied. The heating device 100 has a housing 102, which is a case for accommodating various components. The housing 102 accommodates an electric heater 103, a controller (control unit) 104, a power source 105, etc. The housing 102 has a storage cavity 107 including an opening 106 for inserting the tobacco rod 2 of the heated tobacco product 1. The storage cavity 107 is a cylindrical hollow portion for accommodating the tobacco rod 2, and corresponds to a rod storage portion into which the tobacco rod 2 can be attached. The present invention can also be provided as a heated tobacco product including the heated tobacco product 1 and the heating device 100 to which the heated tobacco product 1 is applied.

[0052] As shown in FIG. 3, an electric heater 103 is provided in the accommodating cavity 107. The electric heater 103 shown in FIG. 3 has a cylindrical shape and protrudes vertically from the center of the bottom 107a of the accommodating cavity 107 toward the opening 106. However, the shape of the electric heater 103 is not particularly limited. For example, the tip of the electric heater 103 may be pointed. For example, the electric heater 103 may have a conical shape that gradually tapers from the base end connected to the bottom 107a of the accommodating cavity 107 toward the tip end. The electric heater 103 may also have a truncated cone shape (frustum cone shape) or a blade shape. The electric heater 103 may also have other shapes. In this embodiment, the central axis of the electric heater 103 may be coaxial with the central axis of the accommodating cavity 107. The type of the electric heater 103 is not particularly limited, but may be, for example, a steel material with heating wires (for example, nichrome, iron chrome, iron nickel, etc.) strung around it, or a ceramic heater, sheathed heater, etc. A sheathed heater is a heater in which heating wires are arranged together with a filler. It is a heater covered with a metal pipe.

[0053] The electric heater 103 of the heating device 100 configured as described above is a so-called internal heating heater. That is, when the tobacco rod 2 is attached to the storage cavity 107 during use of the heated tobacco product 1, the electric heater 103 is fitted or inserted into the tobacco filler material 21 from the front end surface 2a of the tobacco rod 2 in the heated tobacco product 1, and the heated electric heater 103 heats the tobacco filler material 21 from within. A controller (control unit) 104 controls the supply of electricity from a power source 105 to the electric heater 103, and the electric heater 103 generates heat, thereby heating the tobacco filler material 21 (tobacco strands 23) of the tobacco rod 2 attached to the storage cavity 107. As a result, the aerosol-generating base material contained in the tobacco filler material 21 (tobacco strands 23) volatilizes, generating aerosol, which is then supplied into the oral cavity of a user inhaling through the mouthpiece portion 3.

[0054] According to the heated tobacco product 1 of this embodiment, each tobacco strand 23 in the tobacco rod 2 is arranged so as to extend along the longitudinal direction (the direction of the central axis CL1) of the tobacco rod 2. The tobacco strands 23 are arranged facing each other, and each is aligned so as to extend along the longitudinal direction of the tobacco rod 2 (the direction of the central axis CL1). Furthermore, in the tobacco rod 2 of this embodiment, aerosol flow paths 25, which are gaps between the tobacco strands 23, are formed so as to extend along the longitudinal direction of the tobacco rod 2. Therefore, the aerosol generated by the volatilization of the aerosol-generating base material contained in the tobacco strands 23 when heated by the electric heater 103 can be guided to the mouthpiece portion 3 through the aerosol flow paths 25. This makes it difficult for the aerosol generated in the tobacco rod 2 to condense due to contact with the tobacco strands 23, and difficult for it to be filtered by the tobacco strands 23. Therefore, the heated tobacco product 1 of this embodiment can deliver a higher amount of aerosol to the user's oral cavity than ever before.

[0055] Furthermore, in the heated tobacco product 1 of this embodiment, the tobacco strands 23 in the tobacco rod 2 are aligned along the longitudinal direction (the direction of the central axis CL1) of the tobacco rod 2, which makes it easier to fit or insert the electric heater 103 into the tobacco rod 2 from the tip 1b side compared to conventional cases in which tobacco raw materials are randomly oriented. This makes it easier to fit or insert the electric heater 103 into the tobacco rod 2, and provides a heated tobacco product 1 that is easy for users to use. As described above, the tobacco rod 2 of the heated tobacco product 1 of this embodiment has an excellent aerosol delivery rate and allows the electric heater 103 to be smoothly inserted into the tobacco filler 21.

[0056] Note that the heating device applied to the heated tobacco product 1 of this embodiment may be equipped with an externally heated heater as shown in FIG. 4, rather than an internally heated heater as shown in FIG. 3. The heating device 100 shown in FIG. 4 has the same structure as the heating device 100 shown in FIG. 3, except that the electric heater 103 is an externally heated heater. The electric heater 103 shown in FIG. 4 is an annular externally heated heater formed along the cavity-side peripheral wall 107b of the accommodating cavity 107. The electric heater 103 shown in FIG. 4 may be disposed along the cavity-side peripheral wall 107A so as to be flush with the cavity-side peripheral wall 107b, for example. When the heated tobacco product 1 is applied to the heating device 100 equipped with an externally heated electric heater 103 as shown in FIG. 4, when the heated tobacco product 1 is in use, the tobacco filler 21 is heated by the electric heater 103 from the outside of the tobacco rod 2 attached to the accommodating cavity 107.

[0057] Here, a preferred range of the volumetric filling rate of the tobacco strands 23 occupying the tobacco rod 2 will be described. The volumetric filling rate of the tobacco strands 23 here refers to the ratio of the total volume of all the tobacco strands 23 contained in the tobacco rod 2 to the volume of the tobacco rod 2. If the volumetric filling rate of the tobacco strands 23 is excessively high, there is a concern that the airflow resistance of the tobacco rod 2 (tobacco filler 21) will be excessively high. As a result, there is a concern that the aerosol generated in the tobacco rod 2 during use will be filtered (captured) by the tobacco strands 23 in the tobacco rod 2 before being introduced into the mouthpiece portion 3, resulting in a reduced amount of aerosol delivered. On the other hand, if the volumetric filling rate of the tobacco strands 23 is excessively low, there is a concern that the efficiency of heat transfer to the tobacco strands 23 when heated by the electric heater 103 will decrease, resulting in a reduced amount of aerosol delivered. For example, when using the internal heating type electric heater 103 shown in Figure 3, when the electric heater 103 is inserted into the tobacco rod 2, there is a risk that the contact between the electric heater 103 and the tobacco strand 23 will be insufficient, resulting in insufficient heating of the tobacco strand 23.

[0058] Taking the above into consideration, the present inventors have conducted extensive research and found that it is preferable to set the volumetric filling rate of the tobacco strands 23 in the tobacco rod 2 to 50 vol% or more and 80 vol% or less. This makes it possible to prevent the airflow resistance of the tobacco rod 2 (tobacco filler 21) from becoming excessively high, while also preventing a decrease in the efficiency of heat transfer from the electric heater 103 to the tobacco strands 23. As a result, the amount of aerosol delivered during use is Furthermore, if the volume filling rate of the tobacco strands 23 is lower than 50 vol %, the efficiency of heat transfer from the electric heater 103 to the tobacco strands 23 decreases. In addition, there is a risk that the manufacturing suitability of the tobacco rod 2 may be reduced. Furthermore, if the volume filling rate of the tobacco strand 23 exceeds 80 vol %, it may be difficult to install the electric heater 103 in the tobacco rod 2. In addition to the fact that the aerosol becomes difficult to insert into the tobacco rod 2 and the airflow resistance becomes high, there is a risk that the aerosol may be trapped midway, reducing the efficiency of aerosol delivery. For these reasons, the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 should be set to 50 vol % or more. It is preferable to set the range to 80 vol % or less.

[0059] Here, the preferred range of the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 differs depending on the heating method (internal heating heater, external heating heater) of the electric heater 103 of the heating device 100 to which the heated tobacco product 1 is applied. Furthermore, when the electric heater 103 is an internal heating type, the preferred range of the volume filling rate of the tobacco strands 23 also differs depending on whether the electric heater 103 is inserted into the tobacco rod 2 (the tobacco rod 2 is attached to the heating device 100). For example, when the electric heater 103 of the heating device 100 to which the heated tobacco product 1 is applied is an external heating heater, the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 is preferably 60 vol% or more and 80 vol% or less.

[0060] Furthermore, when the electric heater 103 of the heating device 100 to which the heated tobacco product 1 is applied is an internal heater, the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 is preferably 50 vol% or more and 75 vol% or less, and more preferably 60 vol%. The volume filling rate described above refers to a preferred range of the volume filling rate of the tobacco strand 23 before the tobacco rod 2 is attached to the storage cavity 107 of the heating device 100. When the electric heater 103 is an internal heating heater, inserting the electric heater 103 into the tobacco rod 2 causes the tobacco strand 23 within the tobacco rod 2 to be spread toward the outer periphery of the tobacco rod 2 by the electric heater 103. Taking this into consideration, the preferred range of the volume filling rate of the tobacco strand 23 (50 vol% or more and 75 vol% or less) when the electric heater 103 of the heating device 100 to which the heated tobacco product 1 is applied is an internal heating heater is lower than the preferred range of the volume filling rate of the tobacco strand 23 (60 vol% or more and 80 vol% or less) when the electric heater 103 is an external heating heater.

[0061] If the electric heater 103 of the heating device 100 to which the heated tobacco product 1 is applied is an internal heating heater, the volume filling rate of the tobacco strands 23 when the tobacco rod 2 is attached to the accommodating cavity 107, i.e., when the internal heating heater is inserted into the tobacco rod 2, is preferably 60 vol% or more and 80 vol% or less. Here, the volume filling rate of the tobacco strands 23 when the tobacco rod 2 is attached to the accommodating cavity 107 is the ratio of the total volume of the tobacco strands 23 to the volume calculated by subtracting the volume of the tobacco rod 2 occupied by the electric heater 103 from the volume of the tobacco rod 2.

[0062] Furthermore, when comparing under conditions where the volumes of the tobacco strands 23 contained in the tobacco rod 2 in this embodiment are equal, the larger the surface area of ​​the tobacco strands 23, the better the amount of aerosol delivered. If the width of each tobacco strand 23 is large, when the internally heated electric heater 103 is inserted into the tobacco rod 2, the volume filling rate of the tobacco strands 23 is likely to be non-uniform within the cross section of the tobacco rod 2, which may result in variations in the aerosol delivery characteristics. Therefore, from the perspective of increasing the amount of aerosol delivered and making the aerosol delivery characteristics uniform, it is preferable to arrange more tobacco strands 23 with smaller cross section areas in the tobacco rod 2. However, if the cross section area of ​​the tobacco strands 23 is made too small, the tensile strength of the tobacco strands 23 will decrease. There is a concern that the tobacco rod 2 will be overdone, which may reduce the manufacturing suitability of the tobacco rod 2. Therefore, from the perspective of ensuring a good balance between improving the aerosol delivery amount, uniform delivery of the aerosol, and improving the manufacturing suitability of the tobacco rod 2, the width dimension of the cross section of the tobacco strand 23 is preferably 0.4 mm or more and 3 mm or less, and the thickness dimension of the cross section of the tobacco strand 23 is preferably 0.02 mm or more and 1.3 mm or less. One example of a mode in which the length dimension of the tobacco strand 23 along its longitudinal axis is 10 mm or more and 50 mm or less. Furthermore, as described above, the tobacco strand 23 in this embodiment has a uniform cross-sectional area over its entire length, and therefore, when heated by the electric heater 103, variation in the amount of aerosol generated along the longitudinal axis of the tobacco strand 23 is unlikely to occur.

[0063] Furthermore, in this embodiment, the dimensions of the tobacco rod 2 are not particularly limited, but an example embodiment is one in which the length in the longitudinal direction of the tobacco rod 2 is 10 mm to 50 mm, and the diameter of the cross section perpendicular to the longitudinal direction of the tobacco rod 2 is 5.0 mm to 8.0 mm. Another example embodiment is one in which, in a heating device 100 using a heated tobacco product 1, the maximum diameter of the electric heater 103 is 2.5 mm to 3.2 mm. Another example embodiment is one in which the ratio of the maximum diameter of the electric heater 103 to the diameter of the cross section of the tobacco rod 2 is 0.3 to 0.6. Another example embodiment is one in which the length in the longitudinal direction of the tobacco strand 23 arranged in the tobacco rod 2 is approximately equal to the length in the longitudinal direction of the tobacco rod 2.

[0064] <Tobacco rod manufacturing device and manufacturing method> Next, a description will be given of an apparatus and method for manufacturing the tobacco rod 2 in the heated tobacco product 1. Fig. 5 is a diagram showing an apparatus 1000 for manufacturing the tobacco rod 2 in the first embodiment (hereinafter referred to as "rod manufacturing apparatus"). Fig. 6 is a diagram showing a method for manufacturing the tobacco rod 2 in the heated tobacco product 1.

[0065] The rod manufacturing apparatus 1000 includes a first bobbin 1100 on which a tobacco raw material sheet 200 is wound into a roll, a cutting section 1200, a shaping section 1300, a cutting section 1400, and the like. The tobacco raw material sheet 200 wound onto the first bobbin 1100 is a sheet material obtained by forming a tobacco raw material containing an aerosol-generating base material into a sheet. Examples of tobacco raw materials include tobacco shreds, tobacco granules, and reconstituted tobacco material. In this embodiment, an example is described in which the tobacco raw material sheet 200 is obtained by forming reconstituted tobacco into a sheet. The tobacco raw material sheet 200 is cut in the cutting section 1200 and then cut in the cutting section 1400 to form the tobacco strands 23 of the tobacco rod 2 described above.

[0066] In the rod-making apparatus 1000, the first bobbin 1100 is rotatably held by a bobbin holder 1110. The tobacco raw material sheet 200 wound around the first bobbin 1100 is continuously unwound by a feed roller disposed at an appropriate position and sent out along a conveyance path P. As shown in FIG. 5, the cutting section 1200 in the rod-making apparatus 1000 is disposed midway along the conveyance path P. In this specification, the front side along the flow direction of the conveyance path P is defined as "downstream" and the rear side as "upstream." In the exemplary arrangement shown in FIG. 5, the shaping section 1300 is disposed downstream (after) of the cutting section 1200, and the cutting section 1400 is disposed further downstream (after) of the shaping section 1300. Note that, in the sheet-like tobacco raw material sheet 200, the direction along the conveyance path P is referred to as the "sheet length direction (longitudinal direction)," and the direction perpendicular to the conveyance path P is referred to as the "sheet width direction." In the rod-making apparatus 1000, the direction perpendicular to the conveying path P is referred to as the "apparatus width direction." Reference numeral 1500 in FIG. 5 denotes a conveying tray extending along the conveying path P. The sheet-shaped tobacco raw material sheet 200 is cut while traveling on the conveying tray 1500 along the conveying path P. The cross-sectional view is introduced in section 1200.

[0067] The cutting section 1200 is a unit that continuously cuts the tobacco raw material sheet 200 along a conveying path into multiple continuous tobacco strands 300. FIG. 7 is a diagram showing the detailed structure of the slitter 1210 in the cutting section 1200, showing the slitter 1210 as viewed from above. The slitter 1210 has multiple circular cutter discs 1220. The multiple circular cutter discs 1220 are connected at their centers by a rotating shaft member 1230. The rotating shaft member 1230 is rotatably supported on the base of the rod manufacturing apparatus 1000, allowing each cutter disc 1220 to rotate integrally around the rotating shaft member 1230. Here, the rotating shaft member 1230 of the slitter 1210 extends horizontally in a direction perpendicular to the conveying path P of the rod manufacturing apparatus 1000, i.e., along the width direction of the apparatus. 7, each cutter disk 1220 in the slitter 1210 is arranged in a direction perpendicular to the rotary shaft member 1230 and parallel to the conveying path P. Also, each cutter disk 1220 in the slitter 1210 is arranged at regular intervals along a direction perpendicular to the conveying path P (the width direction of the device).

[0068] In the method for manufacturing a tobacco rod 2 in this embodiment, a tobacco raw material sheet 200, obtained by forming a tobacco raw material containing an aerosol-generating base material into a sheet, is conveyed from a first bobbin 1100 along a conveyance path P, and in a cutting step (S101 in FIG. 6 ), the tobacco raw material sheet 200 is continuously cut along the conveyance path P into a plurality of continuous tobacco strand bodies 300 in the form of strands. That is, the tobacco raw material sheet 200 passes along the conveyance path P through a cutting section 1200 (each cutter disc 1220 arranged parallel to the conveyance path P), and the tobacco raw material sheet 200 is continuously cut into a plurality of continuous tobacco strand bodies 300 by each cutter disc 1220.

[0069] The slitter 1210 of the cutting section 1200 has a number of cutter disks 1220 arranged at regular intervals along a direction perpendicular to the conveying path P. Therefore, in the cutting section 1200, the tobacco raw material sheet 200 is cut into a plurality of continuous tobacco strands 300, each having a constant width. The continuous tobacco strands 300 are long tobacco materials extending along the conveying path P. Note that the slitter 1210 only needs to be able to cut the tobacco raw material sheet 200 continuously along the conveying path P into a plurality of continuous tobacco strands 300 in the form of strands, and the tobacco raw material sheet 200 may be cut by a member other than the cutter disks 1220. For example, the slitter 1210 may have a roll cutter with comb blades arranged at regular intervals along the width direction of the device.

[0070] The plurality of tobacco strand continuous bodies 300 cut from the tobacco raw material sheet 200 in the cutting section 1200 are sent along the conveying path P in a state aligned in the width direction of the conveying tray 1500 to the subsequent forming section 1300.

[0071] The forming section 1300 has a second bobbin 1310 on which a long cigarette paper web 400 is wound into a roll. The cigarette paper web 400 is a long web material that becomes the cigarette paper 22 of the tobacco rod 2. The forming section 1300 further includes a converging section 1320, a wrapping mechanism 1330, an adhesive applicator 1340, and the like. The converging section 1320 is disposed near the entrance of the forming section 1300 and converges the multiple continuous tobacco strands 300 fed from the upstream side to form a cylindrical shape (i.e., a rod shape). The converging section 1320 can be, for example, a combination of a tongue member and a horn, a converging funnel, or a conveying jet.

[0072] The packaging mechanism 1330 in the forming section 1300 is provided after the converging section 1320. The packaging mechanism 1330 has an endless garniture belt 1350. The garniture belt 1350 is made of a woven material or a woven web, and is driven by a drive drum 1360 to travel at a constant speed in the direction of the arrow in the figure. The long wrapping web 400 unwound from the second bobbin 1310 is continuously fed onto the garniture belt 1350 in the forming section 1300.

[0073] Meanwhile, the plurality of continuous tobacco strands 300, which have been shaped into a rod shape in the converging portion 1320 in the forming section 1300, are laid on a long cigarette paper web 400 on the garniture belt 1350. The plurality of continuous tobacco strands 300 laid on the long cigarette paper web 400 on the garniture belt 1350 in this way are transported by the garniture belt 1350 along the transport path P, and in the process, the cigarette paper web 400 is wrapped around the outer periphery of the plurality of continuous tobacco strands 300 aligned in a rod shape, and the plurality of continuous tobacco strands 300 are enveloped by the cigarette paper web 400. An adhesive (for example, a hot melt adhesive, CMC (carboxymethyl cellulose), PVA (polyvinyl alcohol), EVA (ethylene vinyl acetate copolymer), etc.) is applied by an adhesive applicator 1340 to the seam formed by the overlapping edges of the cigarette paper web 400. As a result, A rod-shaped, long continuous tobacco rod 500 is formed (forming step, S102 in FIG. 6).

[0074] The manufacturing method of the tobacco rod 2 in this embodiment may further include an addition step of adding at least one of a flavoring and an aerosol-generating substrate to the continuous tobacco strands 300 obtained in the cutting step (cutting section 1200). For example, the addition step may include adding at least one of a flavoring and an aerosol-generating substrate to the continuous tobacco strands 300 during the process of wrapping the continuous tobacco strands 300 in cigarette paper (cigarette paper web 400) in the molding step (molding section 1300). The method of adding the flavoring and the aerosol-generating substrate to the continuous tobacco strands 300 is not particularly limited, and the flavoring and the aerosol-generating substrate may be added to the continuous tobacco strands 300 by ejecting them from an addition nozzle. Of course, the addition nozzle for adding the flavoring and the addition nozzle for adding the aerosol-generating substrate may be provided separately. Furthermore, although menthol is an example of the flavoring, other flavorings may also be added. As described above, when flavoring or an aerosol-generating substrate is added to the continuous tobacco strand body 300 during the process of wrapping the continuous tobacco strand body 300 in cigarette paper (cigarette paper web 400) in the forming step (forming section 1300), an addition nozzle may be installed at an appropriate location in the forming section 1300. Furthermore, the addition nozzle that adds flavoring or an aerosol-generating substrate to the continuous tobacco strand body 300 may be provided at any location on the conveying path P between the cutting section 1200 and the forming section 1300.

[0075] The continuous tobacco rod 500 obtained in the forming section 1300 (forming step) is sent to the cutting section 1400, which is located after the forming section 1300. The cutting section 1400 has cutting means such as a rotary cutter or a knife, and the long continuous tobacco rod 500 is cut to a fixed length in the cutting section 1400. That is, in the cutting step (S103 in FIG. 6 ), the continuous tobacco rod 500 obtained in the forming step (S102 in FIG. 6 ) is cut into individual tobacco rods one by one, thereby obtaining tobacco rods for the heated tobacco product 1. As is clear from the above explanation, the multiple continuous tobacco strands 300 cut from the tobacco raw material sheet 200 in the cutting section 1200 remain connected along the conveying direction on the conveying path P until they are cut in the axial direction in the cutting section 1400.

[0076] As described above, the tobacco rod 2 manufacturing method and rod manufacturing apparatus 1000 of the present embodiment can suitably manufacture the tobacco rod 2 related to the heated tobacco product 1. In particular, the tobacco rod 2 manufacturing method and rod manufacturing apparatus 1000 of this embodiment are characterized in that, after the tobacco raw material sheet 200 is continuously cut into a plurality of continuous tobacco strands 300 in the cutting section 1200, the continuous tobacco strands 300 are aligned along the conveying path P and then wrapped in cigarette paper (cigarette paper web 400) in the forming section 1300 before being cut into short lengths in the cutting section 1400, and formed into a long continuous tobacco rod 500. In this manner, the plurality of tobacco strands 23 can be aligned and arranged so that they extend along the axial direction of the tobacco rod 2. In other words, a tobacco rod 2 in which a plurality of tobacco strands 23 are aligned parallel to one another along the longitudinal axis of the tobacco rod 2 can be easily manufactured.

[0077] In the rod manufacturing apparatus 1000, tobacco strands 23 having a desired thickness can be obtained by adjusting the thickness of the tobacco material sheet 200 wound on the first bobbin 1100. Furthermore, tobacco strands 23 having a desired width can be obtained by adjusting the spacing between the cutter disks 1220 in the slitter 1210 arranged in the cutting section 1200. In this embodiment, the tobacco material sheet 200 is cut into multiple tobacco strand continua 300 each having a uniform width in the cutting section 1200 (cutting step). This allows the cross-sectional area (width dimension) of each tobacco strand 23 arranged in the tobacco rod 2 to be uniform. This makes it easier to prevent uneven aerosol delivery characteristics from occurring in areas within the cross section of the tobacco rod 2 when the heated tobacco product 1 is in use, ensuring a stable supply of aerosol to the user.

[0078] Furthermore, the manufacturing method of the tobacco rod 2 in this embodiment may include a calendaring process in which the tobacco raw material sheet 200 used to manufacture the tobacco rod 2 is subjected to a calendaring process in advance to increase the density of the tobacco raw material sheet 200, and a winding process in which the tobacco raw material sheet 200 after this calendaring process is wound onto the first bobbin 1100.

[0079] FIG. 8 is a diagram illustrating the calendering treatment of the tobacco raw material sheet 200. Calendering is performed by continuously passing the tobacco raw material sheet 200 between a pair of press rollers 600, 600 as shown in FIG. 7, for example, to press the tobacco raw material sheet 200. By performing calendering treatment on the tobacco raw material sheet 200, the tobacco raw material sheet 200 becomes denser, and its density can be increased. As a result, the weight of the tobacco strands 23 can be increased while preventing the volume filling rate of the tobacco strands 23 contained in the manufactured tobacco rod 2 from becoming excessively high, and preventing the airflow resistance of the tobacco rod 2 from becoming excessively high. As a result, the aerosol delivery amount in the tobacco rod 2 can be further increased.

[0080] After the above-described calendering process, the tobacco raw material sheet 200 is wound onto a first bobbin 1100 in a winding process. The tobacco raw material sheet 200 wound onto the first bobbin 1100 is used to manufacture a tobacco rod 2 by being continuously drawn out along the conveying path P as described with reference to Figures 5 and 6.

[0081] The tobacco raw material sheet 200 can be produced by any suitable method, such as the papermaking method (papermaking method), casting method (slurry method), rolling method, or extrusion method, as described above.

[0082] 8 is a diagram illustrating a method for producing a tobacco raw material sheet 200 by a papermaking method (papermaking method). As shown in FIG. 8, first, in step S201, tobacco ribs, tobacco rinds, Tobacco raw materials containing mint, tobacco shreds, tobacco powder, etc. are extracted with water (extraction process). In the extraction process, for example, 10 times the amount of water is added to the tobacco raw materials, and the mixture is heated with stirring at a predetermined temperature for a predetermined period of time to obtain a mixture. Then, in step S202, the mixture obtained in the extraction process is compressed using, for example, a screw press dehydrator, to separate it into an aqueous tobacco extract (liquid) and an insoluble tobacco residue (solid) (separation process). Next, in step S203, water and pulp (cellulose fiber) are added to the insoluble tobacco residue obtained in the separation process, and the insoluble tobacco residue is then beaten using, for example, a refiner to adjust the fiber length and fluff the fibers, thereby converting them into fiber (beating process).

[0083] Next, in step S204, the insoluble tobacco residue and pulp fiberized in the beating process are made into a sheet using a papermaking machine, and then dried to obtain a base sheet (papermaking process). Then, in step S205, an additive liquid containing a concentrated aqueous tobacco extract obtained in the separation process and an aerosol-generating base material such as glycerin or propylene glycol is added to the base sheet (aromatization process). The concentrated aqueous tobacco extract added to the base sheet in the aromatization process can be obtained, for example, by concentrating the aqueous tobacco extract using an evaporator. Next, in step S206, the aromatized base sheet obtained in the aromatization process is dried (drying process).

[0084] The tobacco raw material sheet 200 can be manufactured by the papermaking method (papermaking method) using the above manufacturing method. However, the above manufacturing method is merely illustrative, and steps can be added, omitted, or replaced as appropriate. One example of a tobacco raw material sheet 200 manufactured by the papermaking method (papermaking method) is one in which the aerosol-generating base material content is 15.0 wt%, the tobacco raw material content is 79.05 wt%, and the pulp content is 5.95 wt%, but this is of course not limiting. Preferably, the aerosol-generating base material content of a tobacco raw material sheet 200 manufactured by the papermaking method (papermaking method) is 10 wt% or more and 25 wt% or less.

[0085] 9 is a diagram illustrating a method for producing a tobacco raw material sheet 200 by the casting method (slurry method). As shown in FIG. 9, first, in step S301, tobacco raw material containing tobacco ribs, tobacco lamina, tobacco shreds, tobacco powder, etc. is finely pulverized, and then a small amount of binder (binding agent), a reinforcing agent (defibrated pulp, etc.), a predetermined amount of aerosol-generating base material (glycerin, propylene glycol, etc.), and water are mixed in, for example, a stirring tank to obtain a slurry (suspension) (slurry obtaining step). Examples of binders (binding agents) include guar gum, xanthan gum, and CMC (methylol cellulose).

[0086] Next, in step S302, the slurry obtained in the slurry obtaining step is cast (stretched) into a sheet shape onto, for example, a steel belt (support), to obtain a slurry web (casting step). Next, in step S303, the sheet-shaped slurry web that has been stretched into a sheet shape is dried (drying step). Through these steps, a tobacco raw material sheet 200 is obtained. Note that, in the tobacco raw material sheet 200 produced by the casting method (slurry method), an example embodiment is one in which the aerosol-generating base material (e.g., glycerin) content is 15.0 wt%, the tobacco raw material content is 76.0 wt%, the pulp content is 6.0 wt%, and the binder content is 3.0 wt%, although of course this is not limiting.

[0087] Although the embodiments of the present invention have been described above, the heated tobacco, heated tobacco product, and manufacturing method and device for a tobacco rod for heated tobacco according to the present invention are not limited to these. For example, in the above-mentioned Figures 1 and 2, the tobacco strand 23 arranged in the tobacco rod 2 is described as having a straight shape without any bends, but the tobacco strand 23 may have a long, slender shape extending in the longitudinal direction, and may have any other shape. The following shape may be adopted. FIG. 11 is a diagram showing a tobacco strand 23A according to a modified example. The tobacco strand 23A shown in FIG. 11 has a serpentine (zigzag) shape. The tobacco strand 23A extending in this serpentine shape is aligned and disposed within the tobacco rod 2 so that its longitudinal axis (extension direction) extends along the longitudinal axis direction of the tobacco rod 2. The tobacco strand 23A having such a serpentine (zigzag) shape can make it difficult for the tobacco strand 23A to shift in position along the longitudinal axis of the tobacco rod 2, even if the tobacco strand 23A is pushed by the electric heater 103 when inserting the electric heater 103 of the heating device 100 into the tobacco rod 2. As a result, the tobacco strand 23A can be effectively prevented from slipping out of the tobacco rod 2 when inserting the electric heater 103 into the tobacco rod 2.

[0088] Furthermore, compared to the linear tobacco strand 23 shown in FIGS. 1 and 2, the tobacco strand 23A shown in FIG. 11 is more likely to obstruct the flow path of the aerosol generated in the tobacco rod 2 when heated by the electric heater 103. However, compared to the conventional method of randomly orienting the tobacco material, the aerosol generated in the tobacco rod 2 is less likely to condense or be filtered, and the amount of aerosol delivered can be improved compared to the conventional method.

[0089] When the tobacco strand 23A has a serpentine (zigzag) shape as shown in FIG. 11, the width of the tobacco strand 23A is preferably uniform from the front end surface 23a to the rear end surface 23b. That is, as shown in FIG. 11, it is preferable that the width dimension W1 of the portion of the tobacco strand 23A parallel to the longitudinal axis direction is equal to the width dimension W2 of the portion extending in a direction perpendicular to the longitudinal axis direction. This makes it possible to make the cross-sectional area of ​​the tobacco strand 23A uniform over its entire length. As a result, when the tobacco strand 23A is heated by the electric heater 103, variation in the amount of aerosol generated in the longitudinal axis direction of the tobacco strand 23A can be suitably suppressed. Although the tobacco strand 23A shown in FIG. 11 has a serpentine (zigzag) shape, it may also have a wavy shape or other shapes. [Explanation of symbols]

[0090] 1. Heated tobacco 2. Tobacco rod 3. Mouthpiece 4...Support part 5...Cooling section 6. Filter section 21. Tobacco filler 22. Rolling paper 23 Tobacco Strands 25...Aerosol flow path 100...Heating device 103 Electric heater 200 Tobacco raw material sheets 300 Tobacco Strand Continuum 500 Tobacco Rod Continuum 1000 Rod manufacturing equipment 1100...First bobbin 1200 Cutting Section 1300···Molding section 1400···Cutting section

Claims

1. a rod-shaped member including a filler material including an aerosol-forming substrate; a support portion disposed in contact with the rear end of the rod-shaped member; a cooling portion disposed in contact with a rear end of the support portion; a filter section disposed in contact with the rear end of the cooling section; Equipped with the filler has a plurality of aerosol flow paths formed so as to extend along the longitudinal axis of the rod-shaped member, The support portion is a hollow tube having a center hole formed therethrough, the cooling section is a hollow tube having a through hole formed along the longitudinal direction, and causes the volatile substance released from the rod-shaped member to flow downstream and cool the volatile substance; the cooling unit has a vent hole through which outside air can be introduced, The diameter of the through hole is larger than the diameter of the center hole. Heated aerosol delivery articles.

2. The hollow tube forming the support part is made of cellulose acetate, and the hollow tube forming the cooling part is made of a hollow paper tube. A heated article for delivering the aerosol of claim 1.

3. The filter portion has a filter material formed in a cylindrical shape. A heated article for delivering the aerosol of claim 1 or 2.

4. The heated article for delivering an aerosol according to any one of claims 1 to 3, wherein the aerosol-forming base comprises any one of glycerin, propylene glycol, triacetin, and 1,3-butanediol.

5. The heated article for delivering an aerosol according to claim 1 , wherein the content of the aerosol-forming substrate in the rod-shaped member is 10 wt % or more and 25 wt % or less.

6. The heated aerosol delivery article of claim 1 , wherein the filler material comprises tobacco material.

7. 7. The heated aerosol delivery article of claim 6, wherein the filler material comprises tobacco material produced by an extrusion process.

8. The heated article for delivering an aerosol according to claim 6 or 7, wherein the tobacco raw material includes any one of tobacco ribs, tobacco lamina, tobacco shreds, and tobacco powder.

9. The heated article for delivering an aerosol according to claim 1 , wherein a volume filling rate of the filler occupying the rod-shaped member is 50 vol % or more and 80 vol % or less.

10. A heated product comprising the heated article according to any one of claims 1 to 9 and a heating device having a receiving cavity into which the heated article is inserted.

11. the heating device includes a heater, and the heater heats the rod-shaped member from the inside. The heated product of claim 10.

12. The heater is an electric heater. The heated product of claim 11.

13. The heater has a cylindrical shape and a pointed tip.

13. A heated product according to claim 11 or 12.

14. The heater is provided so as to protrude vertically from the center of the bottom of the receiving cavity toward the opening side of the receiving cavity. A heated product according to any one of claims 11 to 13.

15. 15. The heated product according to claim 11, wherein the ratio of the maximum diameter of the heater to the diameter of the cross section of the rod-shaped member is 0.3 or more and 0.6 or less.

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