JP7238096B2 - Heat-not-burn tobacco, heat-not-burn tobacco product, method and apparatus for manufacturing heat-not-burn tobacco rod - Google Patents

Description

TECHNICAL FIELD The present invention relates to a heat-not-burn tobacco product, a heat-not-burn tobacco product, and a method and apparatus for manufacturing a heat-not-burn tobacco rod.

Heating having a tobacco rod formed by filling the inside of the wrapping paper with a tobacco filler comprising a tobacco raw material (e.g., tobacco cuts, tobacco granules, reconstituted tobacco material, etc.) and an aerosol-generating substrate (glycerin, propylene glycol, etc.) Formula cigarettes are known (see, for example, US Pat. This type of heat-not-burn cigarette is a type of tobacco article that heats a tobacco filler without burning it by a heater in a heating device and delivers an aerosol generated in the tobacco filler to the user. As heaters, heaters of various shapes such as a blade shape and a rod shape have been put into practical use, and the tobacco rod is attached to the heating device by inserting the heater from the tip surface of the tobacco rod at the time of use.

Japanese Patent No. 5920744 Japanese Patent No. 6000451 Japanese Patent No. 6017546 JP-A-62-272962

Here, in the tobacco rod of the conventional heat-not-burn tobacco, since the tobacco raw materials in the tobacco filler are randomly oriented, it is difficult to smoothly insert the heater into the tobacco filler when attaching the heat-not-burn tobacco to the heating device. may be. Further, when a tobacco filler material in which tobacco raw materials are randomly oriented is used to form a tobacco rod of a heated tobacco, the aerosol generated by volatilization of the aerosol-generating base material is generated by the low temperature of the randomly oriented tobacco raw materials. Partial exposure can lead to condensation and filtration by the tobacco material, reducing the delivery of the aerosol into the oral cavity.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a heating device comprising a tobacco rod having a tobacco filler containing a tobacco raw material and an aerosol-generating substrate and a wrapping paper around which the tobacco filler is wound. An object of the present invention is to provide a technology that enables a heater to be smoothly inserted into a tobacco filler while delivering an excellent amount of aerosol in a cigarette and its manufacturing method.

In order to solve the above problems, the present invention adopts a structure in which a large number of long tobacco strands obtained by molding tobacco raw materials into strands are arranged so as to extend along the longitudinal direction of the tobacco rod. I made it

More specifically, the present invention relates to a manufacturing method for manufacturing a tobacco rod for heat-not-burn tobacco, wherein a plurality of tobacco material sheets are continuously transported along the transport path while the tobacco material sheets are transported along the transport path. and wrapping the plurality of continuous tobacco strands obtained in the cutting step with wrapping paper in a state of aligning them along the conveying path, thereby forming a rod-shaped tobacco strand. It is characterized by including a forming step of forming a continuous tobacco rod and a cutting step of sequentially cutting the continuous tobacco rod obtained in the forming step into individual tobacco rods.

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

Further, the tobacco material sheet may be wound on a bobbin, and the tobacco material sheet continuously let out from the bobbin may be transported along the transport path.

In the manufacturing method for manufacturing a tobacco rod for heating tobacco, in the cutting step, the tobacco raw material sheet may be cut so as to obtain a plurality of continuous tobacco strand bodies each having a constant width.

Further, the manufacturing method for manufacturing a tobacco rod for heat-not-burn tobacco further includes a calendering step of subjecting the tobacco material sheet to a calendering treatment to increase the density of the tobacco material sheet, and the cutting step includes: The calendered tobacco material sheet may be transported along the transport path and cut continuously along the transport path into a plurality of continuous strand-shaped tobacco strands.

Further, the manufacturing method for manufacturing a tobacco rod for heat-not-burn tobacco includes an adding step of adding at least one of a flavoring agent and an aerosol-generating base material to the plurality of continuous tobacco strands obtained in the cutting step. , and may further include: In that case, in the adding step, in the process of wrapping the plurality of continuous tobacco strands with the wrapping paper in the forming step, at least one of a fragrance and an aerosol-generating base material is added to the plurality of continuous tobacco strands. You may add.

The present invention also provides a manufacturing apparatus for manufacturing a tobacco rod for heat-not-burn tobacco, which is arranged in a bobbin on which a tobacco material sheet is wound, and a conveying path for the tobacco material sheet continuously fed out from the bobbin, a cutting section that continuously cuts the tobacco raw material sheet into a plurality of continuous strand-shaped tobacco strands along the conveying path; A forming section that forms a rod-shaped continuous tobacco rod by wrapping it with wrapping paper while aligned along a conveying path; and a cutting section that sequentially cuts into individual tobacco rods having predetermined lengths.

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

The cutting section has a cutter arranged parallel to the conveying path, and the tobacco material sheet passes through the cutter along the conveying path so that the tobacco material sheet is cut continuously by the cutter. It may be cut into a plurality of continuous tobacco strands.

The present invention also provides a heated tobacco comprising a tobacco rod having a tobacco filler and a wrapping paper around which the tobacco filler is wound, wherein the tobacco filler includes an aerosol-generating substrate and a tobacco raw material and is in a strand shape. , wherein the plurality of tobacco strands are arranged in line so as to extend along the longitudinal direction of the tobacco rod.

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

Further, the tobacco strand may be arranged extending from the front end to the rear end of the tobacco rod.

Moreover, the tobacco strand may have a rectangular shape.

Further, the tobacco strand may have a rectangular cross-section orthogonal to its longitudinal direction.

Further, the tobacco strand may have a width dimension of 0.4 mm or more and 3 mm or less in a cross section perpendicular to the long axis direction.

Further, the tobacco strand may have a thickness of 0.02 mm or more and 1.3 mm or less in a cross section perpendicular to the long axis direction.

Further, the tobacco strand may have a longitudinal dimension of 10 mm or more and 50 mm or less along the long axis direction.

Further, the tobacco rod may have a diameter of 5 mm or more and 8 mm or less.

Further, the tobacco strand may have a uniform cross-sectional area perpendicular to the longitudinal direction over the entire length.

Moreover, the content of the aerosol-generating base material in the tobacco rod may be 10 wt % or more and 25 wt % or less.

Further, the heat-not-burn cigarette has a mouthpiece portion coaxially connected to the proximal end side of the tobacco rod, and the mouthpiece portion cools the volatile substance released from the aerosol-generating substrate. cooling section may be included.

Further, the mouthpiece portion includes a support portion disposed at a connection end connected to the base end side of the tobacco rod and for suppressing the tobacco strands from being pushed into a region on the side of the mouthpiece portion. You can stay.

Moreover, the mouthpiece portion may include a filter portion disposed on the mouthpiece end side of the mouthpiece portion.

Moreover, the volume filling rate of the tobacco strands occupying the tobacco rod may be 50 vol % or more and 80 vol % or less.

In addition, when the heater of the heating device to which the heated tobacco is applied is an external heater, the heated tobacco has a volume filling rate of the tobacco strands occupying the tobacco rod of 60 vol% or more and 80 vol% or less. It can be.

In addition, when the heater of the heating device to which the heated tobacco is applied is an internal heater, the heated tobacco has a volume filling rate of the tobacco strands occupying the tobacco rod of 50 vol% or more and 75 vol% or less. It can be.

Further, the present invention may be a heat-not-burn tobacco product including any heat-not-burn tobacco described above and a heating device to which the heat-not-burn tobacco is applied.

In the heat-not-burn tobacco product according to the present invention, the heating device has a rod accommodating portion to which the tobacco rod of the heating-type tobacco can be attached, and a heater provided in the rod accommodating portion, wherein the heater is In the case of an internal heating type heater that is inserted from the distal end side of the tobacco rod when the tobacco rod is attached to the rod accommodating portion, in a state in which the tobacco rod is attached to the rod accommodating portion, the A volume filling rate of the tobacco strands occupying the tobacco rod may be 60 vol % or more and 80 vol % or less.

Further, in the heating type tobacco product according to the present invention, the ratio of the maximum diameter of the heater to the diameter of the cross section perpendicular to the longitudinal direction of the tobacco rod may be 0.3 or more and 0.6 or less. .

It should be noted that the means for solving the problems in the present invention can be employed in combination as much as possible.

According to the present invention, in a heated cigarette provided with a tobacco rod having a tobacco filler containing a tobacco raw material and an aerosol-generating base material and a wrapping paper around which the tobacco filler is wound, the aerosol delivery amount is excellent, and It is possible to provide a technique that enables smooth insertion of the heater and, at the same time, prevents the tobacco raw material from being pushed by the heater when the heater is inserted into the tobacco filler.

FIG. 1 is a diagram schematically showing the internal structure of a heat-not-burn cigarette according to Embodiment 1. FIG. FIG. 2 is a perspective view showing an example of a tobacco strand. FIG. 3 is a schematic configuration diagram of a heating device to which heated tobacco is applied. FIG. 4 is a diagram showing a modification of a heating device to which heated cigarettes are applied. FIG. 5 is a diagram showing a tobacco rod manufacturing apparatus according to Embodiment 1. FIG. FIG. 6 is a diagram showing a method for manufacturing a tobacco rod according to Embodiment 1. FIG. FIG. 7 is a diagram showing the detailed structure of the slitter in the cutting section. FIG. 8 is a diagram illustrating calendering of the tobacco raw material sheet. FIG. 9 is a diagram illustrating a method of manufacturing a tobacco raw material sheet by a papermaking method. FIG. 10 is a diagram illustrating a method of manufacturing a tobacco raw material sheet by a casting method. FIG. 11 is a diagram showing a tobacco strand according to a modification.

Here, an embodiment of a heating-type tobacco, a method for manufacturing a tobacco rod in a heating-type tobacco, and a manufacturing apparatus according to the present invention will be described based on the drawings. It should be noted that the dimensions, materials, shapes, relative arrangements, etc. of the constituent elements described in this embodiment are not intended to limit the technical scope of the invention unless otherwise specified. do not have.

<Embodiment 1>
[heat-not-burn tobacco]
FIG. 1 is a diagram schematically showing the internal structure of a heat-not-burn cigarette 1 according to Embodiment 1. FIG. The heat-not-burn cigarette 1 is a type of tobacco article that heats the tobacco filler without burning it and delivers the aerosol generated in the tobacco filler to the user.

A heated cigarette 1 comprises a tobacco rod 2 and a mouthpiece portion 3 coaxially aligned. The heated cigarette 1 has a mouth end 1a that a user inserts into the oral cavity during use, and a tip 1b at the end opposite to the mouth end 1a. The mouthpiece portion 3 has a support portion 4, a cooling portion 5, and a filter portion 6 which are coaxially arranged, and these members are arranged in order from the tip side of the mouthpiece portion 3. As shown in FIG. The support portion 4 , the cooling portion 5 and the filter portion 6 of the mouthpiece portion 3 are integrally wound by a wrapper 7 . Furthermore, the tobacco rod 2 and the mouthpiece portion 3 are wound up by the tipping paper 8 and are integrally connected. However, a part of the support part 4, the cooling part 5, and the filter part 6, which constitute the mouthpiece part 3, may be integrally wound with a wrapper. In that case, and the thing wound up by the wrapper integrally and another part may be wound up by one or more sheets of chipping papers. A symbol CL1 shown in FIG. 1 is the central axis of the heating cigarette 1. Here, the tobacco rod 2 and the mouthpiece portion 3 of the heated tobacco 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 . 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. As shown in FIG.

When the heat-not-burn cigarette 1 is used, air is sucked through the heat-not-burn cigarette 1 from the tip 1b to the mouthpiece end 1a by the user. The tip 1b of the heated tobacco 1 can be regarded as the tip of the tobacco rod 2 or the upstream end, and the mouthpiece end 1a of the heated tobacco 1 can be regarded as the rear end or the downstream end of the mouthpiece portion 3.

The tobacco rod 2 is arranged at the tip 1b of the heated tobacco 1. As shown in FIG. The tobacco rod 2 is a rod-shaped member wrapped with wrapping paper 22 so as to cover the sides of a tobacco filler 21 containing tobacco raw materials and an aerosol-generating base material. In this embodiment, the tobacco filler 21 has a plurality of strand-shaped tobacco strands 23 that are tobacco raw materials including an aerosol-generating base material. As used herein, the term "strand-like" means a long and slender shape extending in a long axis direction perpendicular to the cross-sectional direction compared to the cross-sectional direction. A shape such as a bar is included. Further, the “strand shape” is not limited to linearly extending in the major axis direction, and may be meandering or wavy. Further, the aerosol-generating base material contained in the tobacco strands 23 of the tobacco filler 21 is a substance that generates an aerosol when the volatile substance that is volatilized and released when heated by the heater is cooled. The type of aerosol-generating substrate is not particularly limited, and substances extracted from various natural products can be appropriately selected depending on the application. Examples of aerosol-forming substrates include glycerin, propylene glycol, triacetin, 1,3-butanediol, mixtures thereof, and the like. Moreover, the tobacco strands 23 of the tobacco filler 21 may contain a flavoring agent. The type of perfume is not particularly limited. In this embodiment, the content of the aerosol-generating base material in the tobacco rod 2 can be exemplified as 10 wt % or more and 25 wt % or less.

FIG. 2 is a perspective view showing an example of the tobacco strand 23. As shown in FIG. In the example shown in FIG. 2, the tobacco strand 23 has a strip shape (for example, a thin rectangular parallelepiped shape). As shown in FIG. 2, the tobacco strand 23 can also be considered as a belt shape. A large number (plurality) of tobacco strands 23 are oriented and arranged in the tobacco filler 21 of the tobacco rod 2 in the present embodiment, and each tobacco strand 23 extends in the longitudinal direction of the tobacco rod 2 (in the central axis CL1 direction). ) are aligned to extend along the The tobacco strand 23 has a rectangular cross section perpendicular to its longitudinal direction.

Reference numeral 23a shown in FIG. 2 denotes the front end face of the tobacco strand 23, and reference numeral 23b denotes the rear end face of the tobacco strand 23. As shown in FIG. The front end face 23a of the tobacco strand 23 is the end face facing the tip 1b of the heated tobacco 1, and the rear end face 23b of the tobacco strand 23 is the same as the front end face 23a in the longitudinal direction (stretching direction) of the tobacco strand 23. This is the opposite end face. In this embodiment, the rear end face 23b of the tobacco strand 23 is arranged to face the front end face of the support portion 4 arranged at the front end of the mouthpiece portion 3. As shown in FIG. Reference numeral 23c shown in FIG. 2 denotes a side surface of the tobacco strand 23. As shown in FIG. The tobacco strand 23 shown in FIG. 2 has the same width dimension and thickness dimension 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.

As shown in FIG. 1, the tobacco strands 23 aligned to extend along the longitudinal direction of the tobacco rod 2 are arranged with their side surfaces 23c opposed to each other. In the example shown in FIG. 1 , the tobacco strands 23 are arranged parallel to each other along the longitudinal direction of the tobacco rod 2 . Each tobacco strand 23 extends from the front end face 2a of the tobacco rod 2 to the rear end face 2b. Reference numeral 25 shown in FIG. 1 denotes an aerosol flow path formed by gaps between the tobacco strands 23 . In this embodiment, the tobacco strands 23 are arranged parallel to each other along the longitudinal direction of the tobacco rod 2 , so the aerosol flow path 25 is formed, for example, to extend along the longitudinal direction of the tobacco rod 2 . be done.

Here, the details of the manufacturing method of the tobacco strand 23 and the tobacco rod 2 having the same will be described later. It can be obtained by cutting by slitting by etc. The above tobacco raw material sheet may be a so-called reconstituted tobacco sheet. Reconstituted tobacco sheets are produced, for example, by adding additives such as binders, gelling agents, cross-linking agents, flavors, viscosity modifiers, moisturizing agents, and reinforcing agents to homogenized tobacco and kneading them. (paper making method), casting method (slurry method), rolling method, extrusion method, or the like, and may be formed into a sheet and dried. Homogenized tobacco is, for example, a tobacco material obtained by pulverizing, grinding, and mixing leaf tobacco, dry tobacco leaves, cut tobacco, puffed tobacco, regenerated tobacco, and the like.

Next, the mouthpiece section 3 will be described. The support portion 4 is a segment located on the front end side of the mouthpiece portion 3 and located at the connection end where the mouthpiece portion 3 is connected to the tobacco rod 2 . The support portion 4 is located immediately downstream of the tobacco rod 2 and arranged in contact with the rear end of the tobacco rod 2 . The support 4 may be, for example, a hollow cellulose acetate tube. In other words, the support portion 4 may be formed by penetrating a center hole in the center of the cross section of a cylindrical cellulose acetate fiber bundle. Moreover, the support part 4 may be, as another form, a paper filter filled with cellulose fibers, a paper tube, or the like. Any paper tube having a certain thickness can effectively function as the support portion 4 . The supporting portion 4 is configured so that the tobacco filler 21 moves downstream toward the cooling portion 5 in the heating tobacco 1 when the electric heater of the heating device to which the heating tobacco 1 is applied is inserted into the tobacco rod 2 . It is a segment to prevent being pushed. The support portion 4 also functions as a spacer for separating the cooling portion 5 of the heated tobacco 1 from the tobacco rod 2 .

The cooling part 5 is positioned immediately downstream of the support part 4 and arranged in contact with the rear end of the support part 4 . During use of the heat-not-burn cigarette 1 , the volatile substances released from the tobacco rod 2 (tobacco filler 21 ) flow downstream along the cooling section 5 . The volatile substances released from the tobacco rod 2 (tobacco filler 21) are cooled in the cooling unit 5 to form an aerosol that is inhaled by the user. In the form shown in FIG. 1, the cooling part 5 is formed by a hollow paper tube having a ventilation hole 5a through which external air can be introduced. However, the cooling unit 5 does not have to have the ventilation holes 5a. Also, the cooling unit 5 may have an endothermic agent arranged so as not to block the flow of the volatile substance and the aerosol. For example, the cooling part 5 may be formed of a filter material in which a large number of flow paths (through holes) are formed along the longitudinal direction (axial direction) of the mouthpiece part 3 .

The filter portion 6 is a segment located on the rear end of the mouthpiece portion 3, that is, on the side of the mouthpiece end 1a. The filter unit 6 may be positioned immediately downstream of the cooling unit 5 and arranged in contact with the rear end of the cooling unit 5 . In the form shown in FIG. 1, the filter part 6 may comprise a filter material made of, for example, cylindrical cellulose acetate fibers. The filter part 6 may be a center hole filter, a paper filter filled with cellulose fibers, or a paper tube containing no filter material. The filter part 6 may be formed of any one of a solid filter material having a filter medium, a center hole filter, a paper filter, and a paper tube containing no filter medium, or may be formed by selectively combining a plurality of these. can be

FIG. 3 is a schematic configuration diagram of a heating device 100 to which the heat-not-burn cigarette 1 according to Embodiment 1 is applied. The heating device 100 has a housing 102 which is a housing for accommodating various components. The housing 102 accommodates an electric heater 103, a controller (control unit) 104, a power source 105, and the like. The housing 102 has a receiving cavity 107 including an opening 106 into which the tobacco rod 2 of the heated tobacco 1 is inserted. The housing cavity 107 is a hollow portion having a columnar shape for housing the tobacco rod 2 and corresponds to a rod housing portion to which the tobacco rod 2 can be attached. The present invention can also be provided as a heat-not-burn tobacco product including the heat-not-burn tobacco 1 and the heating device 100 to which the heat-not-burn tobacco 1 is applied.

As shown in FIG. 3, an electric heater 103 is provided within the housing cavity 107 . The electric heater 103 shown in FIG. 3 has a columnar shape and vertically protrudes from the central portion of the bottom portion 107a of the accommodation cavity 107 toward the opening portion 106 side. However, the shape of the electric heater 103 is not particularly limited. For example, the tip side of the electric heater 103 may be sharp. For example, the electric heater 103 may have a conical shape and gradually taper from the proximal end connected to the bottom 107 a of the housing cavity 107 toward the distal end. Also, the electric heater 103 may have a truncated cone shape (truncated cone shape), or may have a blade shape. Also, the electric heater 103 may have other shapes. Note that the central axis of the electric heater 103 in this embodiment may be coaxial with the central axis of the housing cavity 107 . The type of the electric heater 103 is not particularly limited, but for example, a heating wire (for example, nichrome, iron chromium, iron nickel, etc.) is arranged in a steel material, or a ceramic heater, a sheathed heater, or the like. can be used. A sheathed heater is a heater in which a heating wire and a filler are covered with a metal pipe.

The electric heater 103 of the heating device 100 configured as described above is a so-called internal heater. That is, when the tobacco rod 2 is attached to the housing cavity 107 when the heating-type tobacco 1 is used, the electric heater 103 is fitted or inserted into the tobacco filling material 21 from the front end face 2a side of the tobacco rod 2 in the heating-type tobacco 1 to generate heat. The tobacco filling material 21 is heated from the inside by the electric heater 103 which is turned on. A controller (control unit) 104 controls energization from a power source 105 to an electric heater 103 , and the electric heater 103 generates heat, thereby heating the tobacco filler 21 (tobacco strand 23 ) of the tobacco rod 2 mounted in the housing cavity 107 . heat up. As a result, the aerosol-generating base material contained in the tobacco filler 21 (tobacco strands 23 ) volatilizes to generate an aerosol, which is supplied to the oral cavity of the user who inhales the mouthpiece portion 3 .

According to the heat-not-burn cigarette 1 of this embodiment, each tobacco strand 23 in the tobacco rod 2 is oriented and arranged so as to extend along the long axis direction (central axis CL1 direction) of the tobacco rod 2, Each tobacco strand 23 is aligned so as to extend along the longitudinal direction of the tobacco rod 2 (central axis CL1 direction). Furthermore, in the tobacco rod 2 of this embodiment, the aerosol flow paths 25 that are the gaps between the tobacco strands 23 are formed to extend along the longitudinal direction of the tobacco rod 2 . Therefore, the aerosol generated by volatilization of the aerosol-generating base material contained in the tobacco strands 23 during heating by the electric heater 103 can be guided to the mouthpiece portion 3 through the aerosol flow path 25 . According to this, the aerosol generated by the tobacco rod 2 is less likely to condense due to contact with the tobacco strands 23 and is less likely to be filtered by the tobacco strands 23 . Therefore, according to the heat-not-burn cigarette 1 of this embodiment, the amount of aerosol delivered into the user's oral cavity can be improved more than before.

Further, according to the heated cigarette 1 of this embodiment, the tobacco strands 23 of the tobacco rod 2 are aligned along the longitudinal direction of the tobacco rod 2 (direction of the central axis CL1). Compared to the case where the tobacco raw material is randomly oriented, the action of fitting or inserting the electric heater 103 from the tip 1b side of the tobacco rod 2 becomes easier. As a result, the electric heater 103 can be easily fitted or inserted into the tobacco rod 2, making it possible to provide the heated cigarette 1 which is excellent in usability for the user. As described above, according to the tobacco rod 2 of the heated cigarette 1 of this embodiment, the aerosol delivery amount is excellent, and the electric heater 103 can be smoothly inserted into the tobacco filler 21 .

Note that the heating device applied to the heating-type cigarette 1 in this embodiment may be provided with an external heating type heater as shown in FIG. 4 instead of the internal heating type as shown in FIG. 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 external heating type. The electric heater 103 shown in FIG. 4 is an annular external heater formed along the cavity-side peripheral wall 107b of the housing cavity 107. As shown in FIG. For example, the electric heater 103 shown in FIG. 4 may be arranged along the cavity-side peripheral wall 107A so as to be flush with the cavity-side peripheral wall 107b. When the heated tobacco 1 is applied to a heating device 100 equipped with an externally heated electric heater 103 as shown in FIG. The tobacco filler 21 is heated by the electric heater 103 from the outside.

Here, a preferable range of the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 will be described. The volume filling rate of the tobacco strands 23 as used herein 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 concern that the airflow resistance of the tobacco rod 2 (tobacco filler 21) may become excessively high. As a result, the aerosol generated by the tobacco rod 2 during use is filtered (captured) by the tobacco strands 23 of the tobacco rod 2 before being introduced into the mouthpiece portion 3, and the delivery amount of the aerosol is reduced. There is concern that it will be lost. On the other hand, if the volumetric filling rate of the tobacco strands 23 is excessively low, there is concern that the heat transfer efficiency to the tobacco strands 23 during heating by the electric heater 103 will decrease, and the delivery amount of the aerosol will decrease. For example, when using the internal heating type electric heater 103 shown in FIG. 23 may be insufficiently heated.

In consideration of the above circumstances, the inventors of the present invention have made extensive studies and found that the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 is preferably 50 vol % or more and 80 vol % or less. As a result, it is possible to prevent the heat transfer efficiency from the electric heater 103 to the tobacco strands 23 from decreasing while preventing the airflow resistance of the tobacco rod 2 (tobacco filler 21) from becoming excessively high. As a result, it is possible to prevent the delivery amount of the aerosol from decreasing during use. Further, 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 is lowered, and there is also the possibility that the manufacturing aptitude of the tobacco rod 2 is lowered. Further, if the volumetric filling rate of the tobacco strands 23 exceeds 80 vol %, it becomes difficult to insert the electric heater 103 into the tobacco rod 2, the ventilation resistance tends to increase, and the aerosol is trapped ( entrapment), reducing the delivery efficiency of the aerosol. For the reasons described above, the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 is preferably in the range of 50 vol % or more and 80 vol % or less.

Here, the preferable range of the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 is determined by the difference in the heating method of the electric heater 103 of the heating device 100 to which the heated tobacco 1 is applied (internal heating type heater, external heating type heater ). Further, when the electric heater 103 is of an internal heating type, 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), The preferred ranges for the volume filling factor of the tobacco strands 23 are different. For example, when the electric heater 103 of the heating device 100 to which the heated tobacco 1 is applied is an external heater, the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 is 60 vol% or more and 80 vol% or less. is preferred.

In addition, when the electric heater 103 of the heating device 100 to which the heated tobacco 1 is applied is an internal heating heater, the volume filling rate of the tobacco strands 23 occupying the tobacco rod 2 is 50 vol% or more and 75 vol% or less. is preferred, and 60 vol% is more preferred. The above volumetric filling rates refer to preferred ranges of volumetric filling rates of the tobacco strands 23 before the tobacco rod 2 is mounted in the housing cavity 107 of the heating device 100 . When the electric heater 103 is an internal heating type heater, the electric heater 103 is inserted into the tobacco rod 2 so that the tobacco strands 23 in the tobacco rod 2 are spread out toward the outer peripheral side of the tobacco rod 2 by the electric heater 103 . Considering this point, when the electric heater 103 of the heating device 100 to which the heated tobacco 1 is applied is an internal heater, the preferable range of the volumetric filling rate of the tobacco strands 23 (50 vol% or more and 75 vol% or less) is It is lower than the preferable range (60 vol % or more and 80 vol % or less) of the volume filling rate of the tobacco strands 23 when the electric heater 103 is an external heater.

When the electric heater 103 of the heating device 100 to which the heated tobacco 1 is applied is an internal heater, the state in which the tobacco rod 2 is attached to the accommodation cavity 107, that is, the internal heater is attached to the tobacco rod 2 The volume filling rate of the tobacco strands 23 in the inserted state is preferably 60 vol % or more and 80 vol % or less. Here, the volume filling rate of the tobacco strands 23 with the tobacco rod 2 attached to the housing cavity 107 is calculated by subtracting the volume of the tobacco rod 2 occupied by the electric heater 103 from the volume of the tobacco rod 2. It is the ratio of the total volume of the tobacco strands 23 to the volume.

In addition, when compared under the condition that the tobacco strands 23 included in the tobacco rod 2 in this embodiment have the same volume, the greater the surface area of the tobacco strands 23, the more the aerosol delivered. If the width of the individual tobacco strands 23 is large, when the internal heating type electric heater 103 is inserted into the tobacco rod 2, the volumetric filling rate of the tobacco strands 23 tends to become uneven within the cross section of the tobacco rod 2, and the aerosol is generated. There is a risk that the delivery characteristics of the product will easily vary. Therefore, from the viewpoint of increasing the delivery amount of the aerosol and making the delivery characteristics of the aerosol uniform, it is preferable to arrange more tobacco strands 23 with small cross-sectional areas on the tobacco rod 2 . However, if the cross-sectional area of the tobacco strands 23 is excessively reduced, the tensile strength of the tobacco strands 23 becomes too small, and there is concern that the suitability for manufacturing the tobacco rod 2 will be lowered. Therefore, from the viewpoint of securing all of the improvement of the delivery amount of the aerosol, the uniform delivery of the aerosol, and the improvement of the manufacturability of the tobacco rod 2 in a well-balanced manner, the width dimension of the cross section of the tobacco strand 23 should be 0.4 mm or more and 3 mm. 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. As an example, the length dimension of the tobacco strand 23 along the long axis direction is 10 mm or more and 50 mm or less. In addition, as described above, the tobacco strand 23 in the present embodiment has a uniform cross-sectional area over the entire length. Variation is less likely to occur.

In the present embodiment, each dimension of the tobacco rod 2 is not particularly limited. is 5.0 or more and 8.0 mm or less. Further, in the heating device 100 to which the heating-type cigarette 1 is applied, a mode in which the maximum diameter of the electric heater 103 is 2.5 mm or more and 3.2 mm or less can be exemplified. Then, the ratio of the maximum diameter of the electric heater 103 to the diameter of the cross section of the tobacco rod 2 can be exemplified as 0.3 or more and 0.6 or less. Further, as an example, the length of the tobacco strand 23 arranged on the tobacco rod 2 in the longitudinal direction is substantially equal to the length of the tobacco rod 2 in the longitudinal direction.

<Tobacco rod manufacturing apparatus and manufacturing method>
Next, the manufacturing apparatus and manufacturing method of the tobacco rod 2 in the heated tobacco 1 will be described. FIG. 5 is a diagram showing a tobacco rod 2 manufacturing apparatus (hereinafter referred to as a “rod manufacturing apparatus”) 1000 according to Embodiment 1. As shown in FIG. 6A and 6B are diagrams showing a method of manufacturing the tobacco rod 2 in the heated tobacco 1. FIG.

The rod manufacturing apparatus 1000 includes a first bobbin 1100 on which a tobacco material sheet 200 is wound into a roll, a cutting section 1200, a forming section 1300, a cutting section 1400, and the like. The tobacco raw material sheet 200 wound around the first bobbin 1100 is a sheet material obtained by forming a tobacco raw material containing an aerosol-generating substrate into a sheet. Examples of tobacco raw materials include tobacco cuts, tobacco granules, reconstituted tobacco materials, and the like. In the present embodiment, an example in which a material obtained by molding reconstituted tobacco into a sheet is used as the tobacco raw material sheet 200 will be described. The tobacco raw material sheet 200 is cut in the cutting section 1200 and cut in the cutting section 1400 to form the tobacco strands 23 of the tobacco rod 2 described above.

In rod manufacturing apparatus 1000 , first bobbin 1100 is rotatably held by bobbin holder 1110 . The tobacco raw material sheet 200 wound on the first bobbin 1100 is continuously let out by a delivery roller arranged at an appropriate position, and sent out along the transport path P. As shown in FIG. As shown in FIG. 5, the cutting section 1200 in the rod manufacturing apparatus 1000 is arranged in the middle of the transport path P. As shown in FIG. In this specification, along the flow direction of the conveying path P, the front is defined as "downstream" and the rear is defined as "upstream". In the arrangement example shown in FIG. 5 , a forming section 1300 is arranged downstream (after) the cutting section 1200 , and a cutting section 1400 is arranged further downstream (after) this forming section 1300 . In the sheet-like tobacco raw material sheet 200, the direction along the transport path P is called the "sheet length direction (longitudinal direction)", and the direction orthogonal to the transport path P is called the "sheet width direction". Moreover, in the rod manufacturing apparatus 1000, the direction perpendicular to the transport path P is called the "apparatus width direction". Reference numeral 1500 shown in FIG. 5 denotes a transport tray extending along the transport path P. As shown in FIG. The sheet-like tobacco raw material sheet 200 is introduced into the cutting section 1200 while running along the transport path P on the transport tray 1500 .

The cutting section 1200 is a unit that continuously cuts the tobacco raw material sheet 200 into a plurality of strand-like tobacco strand continuous bodies 300 along the conveying path. FIG. 7 is a diagram showing the detailed structure of the slitter 1210 in the cutting section 1200, showing the slitter 1210 viewed from above. The slitter 1210 has a plurality of circular cutter discs 1220 . A plurality of circular cutter discs 1220 are connected at their centers by a rotating shaft member 1230 . The rotating shaft member 1230 is rotatably supported by the base of the rod manufacturing apparatus 1000, and each cutter disc 1220 can rotate integrally around the rotating shaft member 1230. As shown in FIG. Here, the rotating shaft member 1230 in the slitter 1210 extends horizontally along the direction orthogonal to the conveying path P in the rod manufacturing apparatus 1000, that is, 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 transport path P. As shown in FIG. Also, the cutter discs 1220 in the slitter 1210 are arranged at regular intervals along the direction perpendicular to the transport path P (apparatus width direction).

The manufacturing method of the tobacco rod 2 according to the present embodiment is carried out while conveying the tobacco raw material sheet 200 obtained by forming the tobacco raw material containing the aerosol-generating base material into a sheet shape from the first bobbin 1100 along the conveying path P. In the cutting step (S101 in FIG. 6), the tobacco raw material sheet 200 is continuously cut along the transport path P into a plurality of strand-like tobacco strand continuous bodies 300. As shown in FIG. That is, as the tobacco material sheet 200 passes through the cutting section 1200 (the cutter discs 1220 arranged in parallel with the transport path P) along the transport path P, the tobacco material sheet 200 is continuously cut by the cutter discs 1220. A plurality of continuous tobacco strands 300 are cut.

The slitter 1210 of the cutting section 1200 has a large number of cutter discs 1220 arranged at regular intervals along the direction perpendicular to the conveying path P. As shown in FIG. Therefore, in the cutting section 1200, the tobacco raw material sheet 200 is cut into a plurality of continuous tobacco strands 300 having a constant width. The tobacco strand continuum 300 is a long tobacco material extending along the transport path P. The slitter 1210 is only required to continuously cut the tobacco material sheet 200 along the conveying path P into a plurality of strand-like tobacco strand continuities 300 . 200 may be cut. For example, the slitter 1210 may have a roll cutter having comb blades arranged at regular intervals along the width direction of the apparatus.

A plurality of tobacco strand continuous bodies 300 cut from the tobacco raw material sheet 200 in the cutting section 1200 are aligned in the width direction of the conveying tray 1500 and sent along the conveying path P to the forming section 1300 in the subsequent stage.

Forming section 1300 has a second bobbin 1310 on which a long paper web 400 is wound into a roll. The wrapping paper web 400 is a long web material that becomes the wrapping paper 22 of the tobacco rod 2 . Forming section 1300 further includes converging portion 1320, wrapping mechanism 1330, adhesive applicator 1340, and the like. The converging section 1320 is located near the inlet of the shaping section 1300, and converges the plurality of continuous tobacco strands 300 sent from the upstream side to shape them into a cylindrical shape (that is, a rod shape). The converging portion 1320 can be, for example, in the form of a combination tongue and horn, a converging funnel, or a carrier jet.

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

On the other hand, a plurality of continuous tobacco strands 300 shaped into rods at the converging portion 1320 of the forming section 1300 are superimposed on the long wrapping paper web 400 on the garniture belt 1350 . The plurality of continuous tobacco strands 300 thus stacked on the long paper web 400 on the garniture belt 1350 are conveyed along the conveying path P by the garniture belt 1350. A wrapping paper web 400 is wound around the outer periphery of a tobacco strand continuous body 300 , and a plurality of tobacco strand continuous bodies 300 are wrapped by the wrapping paper web 400 . Then, an adhesive (for example, hot-melt adhesive, CMC (carboxymethyl cellulose), PVA (polyvinyl alcohol), EVA (ethylene acetate)) is applied to the joint formed by the overlapping edges of the wrapping paper web 400 in the adhesive applicator 1340. vinyl copolymer resin), etc.) is applied. As a result, a rod-shaped continuous tobacco rod 500 is formed (forming step, S102 in FIG. 6).

In addition, in the manufacturing method of the tobacco rod 2 in the present embodiment, at least one of a flavoring agent and an aerosol-generating base material is added to the plurality of continuous tobacco strands 300 obtained in the cutting step (cutting section 1200). An addition step may be further included. For example, in the adding step, in the process of wrapping the plurality of tobacco strand continuous bodies 300 in the wrapping paper (wrapper web 400) in the forming step (forming section 1300), the plurality of tobacco strand continuous bodies 300 are added to the perfume and aerosol generation. At least one of the base materials may be added. The method of adding the flavoring agent and the aerosol-generating base material to the plurality of tobacco strand continuous bodies 300 is not particularly limited. good. Of course, the addition nozzle for adding the fragrance and the addition nozzle for adding the aerosol-forming substrate may be provided separately. In addition, menthol and the like can be exemplified as perfumes, but other perfumes may be added. When adding a flavoring agent or an aerosol-generating base material to the tobacco strand continuous body 300 in the process of wrapping the plurality of tobacco strand continuous bodies 300 with the wrapping paper (the wrapping paper web 400) in the forming step (forming section 1300) as described above, the addition The nozzles can be placed in place in the molding section 1300 . Further, the adding nozzle for adding the flavoring agent and the aerosol-generating base material to the tobacco strand continuous body 300 may be provided at any part of the conveying path P between the cutting section 1200 and the forming section 1300 .

The tobacco rod continuous body 500 obtained in the forming section 1300 (forming step) is sent to the cutting section 1400 positioned after the forming section 1300 . The cutting section 1400 has cutting means such as a rotary cutter and a knife, and the continuous continuous tobacco rod 500 is cut to a given length in the cutting section 1400 . That is, in the cutting step (S103 in FIG. 6), the tobacco rod continuous body 500 obtained in the forming step (S102 in FIG. 6) is sequentially cut into individual tobacco rods, whereby the tobacco rods of the heated cigarette 1 are is obtained. As is clear from the above description, the plurality of tobacco strand continuous bodies 300 cut from the tobacco raw material sheet 200 in the cutting section 1200 are not conveyed along the conveying path P until they are axially cut in the cutting section 1400. connected along the direction.

As described above, according to the method for manufacturing the tobacco rod 2 and the rod manufacturing apparatus 1000 of the present embodiment, the tobacco rod 2 for the heat-not-burn tobacco 1 can be suitably manufactured. In particular, in the tobacco rod 2 manufacturing method and the rod manufacturing apparatus 1000 of the present embodiment, the cutting section 1200 continuously cuts the tobacco material sheet 200 into a plurality of tobacco strand continuous bodies 300, and then the cutting section 1400 cuts the tobacco strands. Before cutting the continuum 300 into short pieces, the tobacco strand continuum 300 aligned along the conveying path P is wrapped with wrapping paper (wrapping paper web 400) in the forming section 1300 to form a long tobacco rod continuum 500. It is characterized by By doing so, the plurality of tobacco strands 23 can be aligned and arranged so that the plurality of tobacco strands 23 extend along the axial direction of the tobacco rod 2 . That is, it is possible to easily manufacture the tobacco rod 2 in which the plurality of tobacco strands 23 are arranged parallel to each other along the longitudinal direction of the tobacco rod 2 .

Incidentally, in the rod manufacturing apparatus 1000, by adjusting the thickness of the tobacco material sheet 200 wound on the first bobbin 1100, the tobacco strand 23 having a desired thickness can be obtained. Further, by adjusting the distance between the cutter discs 1220 in the slitter 1210 arranged in the cutting section 1200, the tobacco strand 23 having the desired width can be obtained. Further, in the present embodiment, when cutting the tobacco raw material sheet 200 in the cutting section 1200 (cutting step), the plurality of tobacco strand continuous bodies 300 having a constant width are cut. The cross-sectional area (width dimension) of each tobacco strand 23 can be made uniform. As a result, when the heat-not-burn cigarette 1 is used, it becomes easier to suppress the occurrence of locations where the aerosol delivery characteristics are uneven within the cross section of the tobacco rod 2, and the aerosol can be stably supplied to the user. .

In addition, in the manufacturing method of the tobacco rod 2 in the present embodiment, the tobacco material sheet 200 used for manufacturing the tobacco rod 2 is calendered in advance, thereby increasing the density of the tobacco material sheet 200. and a winding step of winding the calendered tobacco material sheet 200 around the first bobbin 1100 .

FIG. 8 is a diagram illustrating calendering of the tobacco material sheet 200. FIG. Calendering is performed by pressing the tobacco material sheet 200 by continuously passing the tobacco material sheet 200 between a pair of press rollers 600, 600 as shown in FIG. 7, for example. Calendering the tobacco material sheet 200 makes the tobacco material sheet 200 dense and increases its density. As a result, the weight of the tobacco strands 23 is increased while suppressing an excessively high volumetric filling rate of the tobacco strands 23 contained in the manufactured tobacco rod 2 and an excessively high ventilation resistance of the tobacco rod 2. can be made As a result, the delivery amount of aerosol in the tobacco rod 2 can be further increased.

The tobacco material sheet 200 after being subjected to the calendering process as described above is wound around the first bobbin 1100 in the winding process. The tobacco material sheet 200 wound around the first bobbin 1100 is used for manufacturing the tobacco rod 2 by being continuously pulled out along the conveying path P as described with reference to FIGS. 5 and 6 .

As for the method for manufacturing the tobacco raw material sheet 200, any suitable method such as the papermaking method (papermaking method), the casting method (slurry method), the rolling method, or the extrusion method can be adopted as described above.

FIG. 8 is a diagram illustrating a method of manufacturing the tobacco raw material sheet 200 by a papermaking method (papermaking method). As shown in FIG. 8, first, in step S201, tobacco raw materials including tobacco core, tobacco lamina, tobacco shreds, tobacco dust, etc. are extracted with water (extraction step). In the extraction step, for example, 10 times the amount of water is added to the tobacco raw material, and the mixture is heated at a predetermined temperature for a period of time while stirring to obtain a mixture. Then, in step S202, the mixture obtained in the extraction step is compressed using, for example, a screw press dehydrator or the like to separate the water-based tobacco extract (liquid) and the insoluble tobacco residue (solid) (separation step). Next, in step S203, after water and pulp (cellulose fibers) are added to the insoluble tobacco residue obtained in the separation step, the insoluble tobacco residue is beaten using, for example, a refiner to adjust the fiber length and fluff the fibers. By doing so, it is made into fibers (beating process).

Next, in step S204, the insoluble tobacco residue and pulp fiberized in the beating step are made into a sheet by a paper machine and dried to obtain a base sheet (paper making step). Then, in step S205, an additive liquid containing an aerosol-generating base material such as a concentrate of the aqueous tobacco extract obtained in the separation step and an aerosol-generating base material such as glycerin or propylene glycol is added to the base sheet (perfuming step). ). In addition, in the flavoring step, the concentrated liquid of the aqueous tobacco extract added to the base sheet is obtained, for example, by concentrating the aqueous tobacco extract with an evaporator. Next, in step S206, the scented base sheet obtained in the scenting step is dried (drying step).

According to the manufacturing method described above, the tobacco raw material sheet 200 can be manufactured by the papermaking method (papermaking method). However, the above manufacturing method is an example, and steps can be added, omitted, or replaced as appropriate. In the tobacco raw material sheet 200 manufactured by the papermaking method (papermaking method), the content of the aerosol-generating base material was 15.0 wt%, the content of the tobacco raw material was 79.05 wt%, and the pulp content was is 5.95 wt %, but it is needless to say that the present invention is not limited to this. In addition, in the tobacco raw material sheet 200 manufactured by the papermaking method (papermaking method), the content of the aerosol-generating base material is preferably 10 wt % or more and 25 wt % or less.

FIG. 9 is a diagram illustrating a method of manufacturing the tobacco material sheet 200 by a casting method (slurry method). As shown in FIG. 9, first, in step S301, after pulverizing tobacco raw materials including tobacco core, tobacco lamina, tobacco shreds, tobacco powder, etc., a small amount of binder (binder) and reinforcing agent (pulp) are pulverized. A defibrillated material, etc.), a predetermined amount of an aerosol-generating base material (glycerin, propylene glycol, etc.) and water are mixed, for example, in a stirring tank to obtain a slurry (suspension) (slurry obtaining step). Guar gum, xanthan gum, CMC (methylol cellulose) and the like can be exemplified as the binder (binding agent).

Then, in step S302, a slurry web is obtained by casting (spreading) the slurry obtained in the slurry acquisition step into a sheet on, for example, a steel belt (support) (casting step). Next, in step S303, the sheet-like slurry web that has been stretched into a sheet is dried (drying step). Through the above steps, the tobacco material sheet 200 is obtained. In the tobacco raw material sheet 200 manufactured by the casting method (slurry method), the content of the aerosol-generating base material (eg, glycerin) is set to 15.0 wt%, the content of the tobacco raw material is set to 76.0 wt%, and the pulp is 6.0 wt% and the content of the binder is 3.0 wt%.

Although the embodiments of the present invention have been described above, the heat-not-burn tobacco, the heat-not-burn tobacco product, and the method and apparatus for manufacturing a heat-not-burn tobacco rod according to the present invention are not limited to these. For example, in FIGS. 1 and 2, the strand-shaped tobacco strand 23 arranged on the tobacco rod 2 has been described as an example having a straight shape without a bent portion, but the tobacco strand 23 is long. It suffices if it has an elongated shape extending in the axial direction, and other shapes may be adopted. FIG. 11 is a diagram showing a tobacco strand 23A according to a modification. The tobacco strand 23A shown in FIG. 11 has a meandering shape (zigzag shape). The tobacco strands 23</b>A extending in a meandering shape in this manner are aligned within the tobacco rod 2 so that their longitudinal directions (stretching directions) extend along the longitudinal direction of the tobacco rod 2 . Tobacco strand 23A having such a meandering shape (zigzag shape) prevents tobacco rod 2 from moving even if electric heater 103 pushes tobacco strand 23A when electric heater 103 of heating device 100 is inserted into tobacco rod 2. Positional displacement of the tobacco strand 23A in the longitudinal direction can be made difficult to occur. As a result, when the electric heater 103 is inserted into the tobacco rod 2, the tobacco strand 23A can be prevented from coming out of the tobacco rod 2.

Further, in the tobacco strand 23A shown in FIG. 11, compared to the straight tobacco strand 23 shown in FIGS. However, compared to the conventional random orientation of the tobacco raw material, condensation and filtration of the aerosol generated by the tobacco rod 2 are relatively difficult to occur, and the delivery amount of the aerosol is improved more than before. can be made

When the tobacco strand 23A has a meandering shape (zigzag shape) as shown in FIG. 11, it is preferable that the width of the tobacco strand 23A is 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 parallel to the long axis direction of the tobacco strand 23A and the width dimension W2 of the portion extending in the direction orthogonal to the longitudinal direction are equal. By doing so, it is possible to make the cross-sectional area uniform over the entire length of the tobacco strand 23A. As a result, when the electric heater 103 heats the tobacco strands 23A, variations in the amount of aerosol generated in the longitudinal direction of the tobacco strands 23A can be suppressed. Although the tobacco strand 23A shown in FIG. 11 has a meandering shape (zigzag shape), it may have a corrugated shape or other shape.

Reference Signs List 1 Heated tobacco 2 Tobacco rod 3 Mouthpiece part 4 Support part 5 Cooling part 6 Filter part 21 Tobacco filler 22 Wrapping paper 23 Tobacco strand 25 Aerosol flow path 100 Heating device 103 Electric heater 200 Tobacco material sheet 300 Tobacco strand continuum 500 Tobacco rod continuum 1000 Rod manufacturing apparatus 1100 First bobbin 1200 Cutting section 1300 Forming section 1400 Cutting section

Claims (9)

A manufacturing method for manufacturing a tobacco rod for heating tobacco, comprising:
a cutting step of transporting the tobacco material sheet along the transport path and cutting the tobacco material sheet continuously along the transport path into a plurality of continuous strand-shaped tobacco strands;
a forming step of forming a rod-shaped continuous tobacco rod by wrapping the plurality of continuous tobacco strands obtained in the cutting step with wrapping paper in a state of being aligned along the conveying path;
an addition step of adding at least one of a fragrance and an aerosol-generating base material to the plurality of continuous tobacco strands in the process of wrapping the plurality of continuous tobacco strands with the wrapping paper in the forming step;
a cutting step of sequentially cutting the continuous tobacco rod obtained in the forming step into individual tobacco rods;
including,
A method for manufacturing a tobacco rod in a heat-not-burn tobacco. The tobacco raw material sheet is obtained by forming a tobacco raw material containing an aerosol-generating base material into a sheet.
A method for manufacturing a tobacco rod in the heating type tobacco according to claim 1. The tobacco material sheet is wound around a bobbin, and the tobacco material sheet continuously unwound from the bobbin is conveyed along a conveying path.
A method for manufacturing a tobacco rod in the heating type tobacco according to claim 1 or 2. In the cutting step, the tobacco raw material sheet is cut so as to obtain a plurality of continuous tobacco strands each having a constant width.
A method for manufacturing a tobacco rod in the heating type tobacco according to any one of claims 1 to 3. further comprising a calendering step of increasing the density of the tobacco material sheet by subjecting the tobacco material sheet to a calendering process;
In the cutting step, the calendered tobacco material sheet is transported along the transport path, and the tobacco material sheet is continuously formed into a plurality of strand-like tobacco strand continuous bodies along the transport path. to cut,
A method for manufacturing a tobacco rod in the heating type tobacco according to any one of claims 1 to 4. A manufacturing device for manufacturing a tobacco rod for a heated tobacco,
A bobbin wound with a tobacco raw material sheet;
a cutting section arranged in a conveying path of the tobacco material sheet continuously unwound from the bobbin, for continuously cutting the tobacco material sheet into a plurality of continuous strand-like tobacco strands along the conveying path;
and a forming section disposed downstream of the cutting section in the conveying path for forming a rod-shaped continuous tobacco rod by wrapping a plurality of continuous tobacco strands in a wrapping paper while aligning them along the conveying path. ,
an adding nozzle disposed in the forming section for adding at least one of a flavoring agent and an aerosol-generating base material to the plurality of continuous tobacco strands in the process of wrapping the plurality of continuous tobacco strands with the wrapping paper; ,
a cutting section disposed downstream of the forming section in the conveying path for sequentially cutting the continuous tobacco rod into individual tobacco rods having a predetermined length;
including,
Tobacco rod manufacturing equipment for heat-not-burn tobacco. The tobacco raw material sheet is obtained by forming a tobacco raw material containing an aerosol-generating base material into a sheet.
7. The apparatus for manufacturing a tobacco rod for heat-not-burn tobacco according to claim 6. The cutting section cuts the tobacco raw material sheet so as to obtain a plurality of continuous tobacco strands each having a constant width.
The apparatus for manufacturing a tobacco rod for heat-not-burn tobacco according to claim 6 or 7. the cutting section has a cutter arranged parallel to the transport path;
The tobacco material sheet is passed through the cutter along the transport path, so that the tobacco material sheet is continuously cut into a plurality of continuous tobacco strands by the cutter.
The apparatus for manufacturing a tobacco rod for heat-not-burn tobacco according to any one of claims 6 to 8.

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