Non-combustion type flavor inhalation article and non-combustion type flavor inhalation system

Abstract

A non-combustion type flavor inhalation article according to the present invention comprises a tip plug, a tobacco segment that is provided downstream of the tip plug, a cooling segment that is provided downstream of the tobacco segment, and a mouthpiece segment that is provided downstream of the cooling segment. The tip plug includes a tip plug filler, a sheet-like first wrapper that covers the outer circumference of the tip plug filler, and a first seam part that is provided extending along the longitudinal direction of said flavor inhalation article at an overlap portion where end parts of the first wrapper overlap, that has a region of an aqueous adhesive, and that fixes the overlap portion of the first wrapper. A hot melt adhesive that melts by heating is not used in the first seam part.

Description

Non-burning flavor inhalation article and non-burning flavor inhalation system

[0001] The present invention relates to a non-burning type flavor inhalation article and a non-burning type flavor inhalation system.

[0002] For example, WO 2017 / 104079 A1 discloses an embodiment of a seam portion of an overlapping portion of a wrapper of a filter segment. In general, the overlapping portion of the wrapper of the filter segment is fixed by adjacently applying both a hot-melt adhesive that dries quickly by cooling the melted adhesive and a water-based adhesive that has superior adhesive strength (peel strength) compared to the hot-melt adhesive.

[0003] For example, when a seam portion of a wrapper of a tobacco rod or the like for a flavor inhalation article is secured using both a hot-melt adhesive and a water-based adhesive, and the seam portion is heated by a heater to a temperature above an appropriate temperature, such as between 200° C. and 400° C., the hot-melt adhesive, which has a melting point of, for example, about 120° C. to 200° C., may melt. In this case, the securing strength of the seam portion of the heated wrapper may decrease.

[0004] The present invention aims to provide a non-combustion type flavor inhalation article and a non-combustion type flavor inhalation system that can suppress a decrease in adhesive strength of a seam portion, for example, when the seam portion of the wrapper of the tip plug of the flavor inhalation article is heated in a heating device or the like.

[0005] A non-combustion flavor inhalation article according to one aspect of the present invention comprises a tip plug, a tobacco segment provided downstream of the tip plug, a cooling segment provided downstream of the tobacco segment, and a mouthpiece segment provided downstream of the cooling segment. The tip plug comprises a tip plug filler, a sheet-like first wrapper covering the outer periphery of the tip plug filler, and a first seam portion provided along the longitudinal direction of the flavor inhalation article at the overlapping portion between the ends of the first wrapper, the first seam having an area of ​​water-based adhesive and fixing the overlapping portion of the first wrapper. A hot-melt adhesive that melts when heated is not used in the first seam portion.

[0006] 1. A schematic diagram of a flavor inhalation system according to an embodiment. A diagram schematically showing the internal structure of a flavor inhalation device of the flavor inhalation system shown in FIG. 1. A schematic longitudinal sectional view of the flavor inhalation article shown in FIG. 1. A modified example of the mouthpiece portion of the flavor inhalation article in FIG. 3A. A schematic perspective view of the tip rod of the rod portion shown in FIG. 3A. A schematic view of the tip rod as seen from the direction indicated by arrow V in FIG. 4. A schematic view showing a part of the wrapper of the tip rod as seen from the direction indicated by arrow VI in FIG. 5. A table showing the amount of water-based adhesive in the first seam portion of the tip rods shown in FIGS. 4 to 6, the conveying speed during production, the peel strength, and an evaluation of the peel strength. A graph showing the relationship between the amount of water-based adhesive per unit length of the first seam portion and the peel strength. A schematic perspective view of a tobacco rod of the rod portion shown in FIG. 3A. A schematic view of a tobacco rod as seen from the direction indicated by arrow X in FIG. 9. A schematic view showing a part of the wrapper of a tobacco rod as seen from the direction indicated by arrow XI in FIG. 10. A schematic perspective view showing a state in which the rod portion and part of the cooling portion shown in FIG. 3A are covered with an outer wrapper. 13. A schematic diagram of a part of the cooling unit and the outer wrapper as seen from the direction indicated by arrow XIII in Fig. 12. A schematic diagram of a part of the outer wrapper as seen from the direction indicated by arrow XIV in Fig. 13. A schematic diagram showing a state in which tipping paper is wrapped around the outer periphery of the wrapper, cooling unit, and mouthpiece unit. A schematic diagram of the mouthpiece unit as seen from the direction indicated by arrow XVI in Fig. 15.

[0007] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0008] Fig. 1 is a diagram showing a schematic structure of a non-combustion type flavor inhalation system 200 according to an embodiment. As shown in Fig. 1, the flavor inhalation system 200 includes a non-combustion type flavor inhalation article (hereinafter, mainly referred to as the flavor inhalation article) 10 and a non-combustion type flavor inhalation device (hereinafter, mainly referred to as the device) 300 that heats the outer periphery of a tobacco rod (aerosol source) 24 (described later) of the flavor inhalation article 10.

[0009] <Flavor inhalation device 300> FIG. 2 is a diagram schematically showing the internal structure of the flavor inhalation device 300 according to the embodiment.

[0010] 1 and 2 , the device 300 includes a housing 310, which is a case for accommodating various components, a heater 320, a temperature sensor 350, a suction sensor 360, a control unit 370, and a power supply 380. The heater 320, the temperature sensor 350, the suction sensor 360, the control unit 370, and the power supply 380 are each provided in the housing 310.

[0011] The housing 310 has a storage section 311 that accommodates a rod section 12 (described later) of the flavor inhalation article 10 in a removably insertable manner from an open end (insertion opening) 311a toward a closed end (bottom 313) on the rear side. The storage section 311 has a peripheral wall (cylindrical tube) 312 and a bottom 313. The storage section 311 defines an internal space as a cylindrical storage cavity 311b by the peripheral wall 312 and the bottom 313, into which the rod section 12 of the flavor inhalation article 10 can be inserted and removed via the open end 311a. The outer diameter of the storage cavity 311b, i.e., the inner diameter of the peripheral wall 312, may be equal to or slightly larger than the outer diameter of the flavor inhalation article 10. Therefore, the flavor inhalation article 10 is accommodated in the storage cavity 311b of the storage section 311 in a removably insertable manner through the open end 311a of the device 300.

[0012] 1 and 2, the symbol CL indicates the central axis of the storage cavity 311b in the insertion / removal direction of the flavor inhalation article 10. In the example shown in Fig. 1, the central axis of the flavor inhalation article 10 preferably coincides with the central axis CL of the storage cavity 311b of the device 300. Hereinafter, the direction along this central axis CL will also be referred to as the axial direction of the rod portion 12, cooling portion (cooling segment) 14, and mouthpiece portion (mouthpiece segment) 16 of the device 300 and the flavor inhalation article 10.

[0013] A heater 320 is provided around or inside the peripheral wall 312 of the storage section 311. The peripheral wall 312 and the bottom 313 of the storage section 311 are formed of a material that can withstand the heat of the heater 320 and transfer the heat of the heater 320 to the flavor inhalation article 10. Examples of materials that can be used for such a storage section 311 include metals such as stainless steel and heat-resistant resins.

[0014] The heater 320 generates heat upon receiving power from the control unit 370 and heats the flavor inhalation article 10 housed in the housing unit 311. The maximum heating temperature of the flavor inhalation article 10 by the heater 320 is, for example, between 200° C. and 400° C. Examples of the maximum heating temperature vary depending on the heater 320 used.

[0015] The space in the housing cavity 311b that is heated to a predetermined temperature by the heater 320 is defined as a heated area A1, and the space adjacent to the opening end 311a of the heated area A1 in the axial direction (insertion / removal direction) is defined as a non-heated area A2. The heated area A1 is formed on the bottom 313 side of the housing cavity 311b.

[0016] The type of heater 320 is not particularly limited, but may be, for example, a steel material with a heating wire (e.g., a wire material with high electrical resistance such as nichrome, iron chromium, or iron nickel) strung throughout, or a temperature-controllable heater such as a ceramic heater or sheathed heater. A sheathed heater is a heater in which a heating wire is covered with a metal pipe together with a filler.

[0017] The heater 320 is disposed around or inside the peripheral wall 312 in the heating region A1, and heats the heating region A1 from the outside. The heater 320 not only heats the portion in contact with the peripheral wall 312 of the accommodation portion 311, but can also heat portions of the peripheral wall 312 and bottom 313 of the accommodation portion 311 that are distant from the heater 320 by radiation or heat conduction. For example, the heater 320 heats the peripheral wall 312 from a position including the bottom 313 of the accommodation portion 311 to a position B on the opening end 311a side in the axial direction, for example, to a predetermined temperature or higher.

[0018] Therefore, heated region A1 is defined as the region between position B and bottom 313 in the axial direction of accommodating portion 311. Position B is the boundary between heated region A1 and non-heated region A2, and non-heated region A2 is defined as the region from boundary B to open end 311a of accommodating cavity 311b in the axial direction. Note that boundary B may be defined as the boundary between a region that reaches a predetermined temperature when actually heated by heater 320 and a region that reaches a temperature below the predetermined temperature, or it may be defined as an estimated boundary between a region that reaches a predetermined temperature and a region that reaches a temperature below the predetermined temperature when heater 320 is operated under predetermined conditions.

[0019] 1 shows a state in which the rod portion 12 of the flavor inhalation article 10 is inserted into the accommodation cavity 311b. In this state, the heater 320 receives power supply from the control unit 370, generates heat, and heats the outer periphery of the tobacco rod 24 to a predetermined temperature.

[0020] In this embodiment, the boundary position between the region where the peripheral wall 312 reaches a predetermined temperature and the region where the temperature is lower than the predetermined temperature is estimated, and a plane that passes through this boundary position and is perpendicular to the central axis CL is defined as boundary B, as shown by the two-dot chain line in Fig. 2. When the flavor inhalation article 10 is inserted into the containing cavity 311b, the tobacco rod 24 is located in the heated region A1, and at least a part of the cooling section 14 is located in the non-heated region A2. Therefore, the heater 320 heats at least the outer side of the tobacco rod 24 out of the outer sides of the tip rod 22 and the tobacco rod 24.

[0021] In addition, when the flavor inhalation article 10 is in a predetermined state, for example, inserted into the storage cavity 311b until the tip De of the flavor inhalation article 10 hits the bottom 313 of the storage section 311, the part of the storage cavity 311b where the tobacco rod 24 is located may be the heated area A1, and the part where the cooling section 14 is located may be the non-heated area A2.

[0022] When the device 300 is used by a user, the flavor inhalation article 10 is inserted into the storage cavity 311b, and in this state, the heater 320 provided in the storage section 311 is made to generate heat, which heats the tobacco filling in the flavor inhalation article 10, thereby generating an aerosol containing tobacco components and making it available for inhalation by the user.

[0023] The control unit 370 controls the operating state of the device 300, such as controlling heating by the heater 320 based on the temperature sensor 350 and / or the suction sensor 360. The control unit 370 is a computer including a processor such as a central processing unit (CPU), a digital signal processor (DSP), or a field-programmable gate array (FPGA), a memory such as a random access memory (RAM) or a read-only memory (ROM), and an input / output unit.

[0024] <Flavor inhalation article 10> In this embodiment, an example will be described in which the flavor inhalation article 10 is used as a non-combustion type. The flavor inhalation article 10 according to this embodiment is formed in a substantially cylindrical rod shape. The flavor inhalation article 10 has a substantially constant diameter over the entire length in the longitudinal direction (hereinafter also referred to as the axial direction) from the mouth end Me along the tip De. The entire length of the flavor inhalation article 10 is, for example, about 60 mm, and the outer diameter is, for example, about 7 mm.

[0025] As shown in Figure 3A, the flavor inhalation article 10 includes a rod portion (rod) 12, a cooling portion (cooling segment) 14 provided downstream of the rod portion 12, a mouthpiece portion (mouthpiece segment, filter portion) 16 provided downstream of the cooling portion 14, and a sheet-like tipping paper 18 that connects these together.

[0026] The rod portion 12 is disposed in or near the portion heated by the device 300. The rod portion 12 has a tip rod (tip plug) 22 and a tobacco rod (tobacco segment, aerosol source) 24 adjacent to the tip rod 22 on the downstream side.

[0027] The axial lengths and outer diameters of the tip rod 22 and the tobacco rod 24 may be appropriately changed depending on the product of the non-combustion flavor inhalation article 10. The axial length of the tip rod 22 is preferably about 5 mm, for example. The axial length of the tobacco rod 24 is preferably about 15 mm, for example.

[0028] When the rod portion 12 is properly inserted into the storage cavity 311b of the storage portion 311 of the device 300, it is preferable that the tobacco rod 24 is inside the heater 320 around its entire circumference, but a portion of the tip rod 22 may or may not be inside the heater 320.

[0029] The tip rod 22 is formed as a so-called tip plug, which serves to, for example, cover the tip side of the tobacco rod 24 to prevent a filler (tobacco segment filler) 42 (described later) from falling out. The tip rod 22 has a filler (tip plug filler) 32 and a sheet-like inner plug wrapper (segment wrapper) 34 that covers the outer periphery of the filler 32.

[0030] The filler 32 of the distal rod 22 is preferably a paper sheet, a nonwoven fabric sheet, a resin sheet, or cellulose acetate tow. The filler 32 of the distal rod 22 may include an aerosol-generating substrate. The type of the aerosol-generating substrate is not particularly limited, and various extracts from natural products and / or their constituent components can be selected depending on the application. Examples of aerosol-generating substrates include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.

[0031] The filler 32 of the distal rod 22 is formed from a paper sheet, a nonwoven fabric sheet, or a resin sheet, which is creped (crimped) and folded to form a generally cylindrical rod of an appropriate length. The paper sheet may be any material known to those skilled in the art for use as a paper filter. Glassine paper, for example, may also be used. In this embodiment, the width of the base paper in the filler 32 is preferably 100 mm or more and 250 mm or less, more preferably 150 mm or more and 200 mm or less, e.g., 180 mm. The basis weight is typically 20 gsm or more and typically 65 gsm or less. The basis weight of the base paper in the filler 32 according to this embodiment is 35 gsm. The thickness of the filler 32 is not limited, but is typically 10 μm or more and typically 100 μm or less, from the viewpoints of rigidity, breathability, and ease of adjustment during papermaking. In this embodiment, the thickness of the filler 32 is, for example, 88 μm.

[0032] The air permeability of a paper sheet material (raw sheet) after creping is, for example, 0 CU (CORESTA units) to 30,000 CU. In this embodiment, the air permeability of the sheet material of the filler 32 of the distal rod 22 is, for example, 3,000 CU. The air permeability is measured as follows. The sheet was left to stand for 48 hours under conditions of a room temperature of 22°C and a relative humidity of 60%. Next, this sheet was cut into pieces measuring 40 mm x 240 mm, and the measurement was carried out using an air permeability measuring device (PPM1000M manufactured by Cerulean) under the following conditions: a differential pressure of 1 kPa, a measuring head with a circular 2 cm diameter, and a measuring hole. ２ The measurement was performed under the conditions of a room temperature of 22°C and a relative humidity of 60%. The air permeability was measured under the conditions of a differential pressure of 1 kPa and a pressure of 1 cm ２ Air flow rate (cm ) per minute ３ ) was calculated as follows.

[0033] The airflow resistance of the distal rod 22 is, for example, 0 mmH ２ O / mm~12mmH ２ O / mm, preferably 4 mmH ２ O / mm to 8mmH ２ O / mm.

[0034] The crimp depth (crepe depth) of the filler 32 is preferably in the range of 0.1 mm to 0.5 mm, and is, for example, 0.33 mm.

[0035] For example, a plasticizer such as triacetin, an adsorbent such as activated carbon, or a flavoring agent such as menthol may be added as an additive to the filler 32. It is preferable that these additives are dispersed approximately uniformly in the filler 32.

[0036] The inner plug wrapper (hereinafter, mainly referred to as the wrapper) 34 is a sheet material for covering the outer periphery of the filler 32. Its configuration is not particularly limited, and a common one can be used. For example, cellulose fiber paper can be used as the base paper used for the wrapper (first wrapper) 34. More specifically, the base paper used for the wrapper 34 can be hemp, wood, or a mixture thereof. The basis weight of the base paper in the wrapper 34 is, for example, typically 20 gsm or more and typically 100 gsm or less, more preferably 30 gsm or more and 80 gsm or less, and even more preferably 40 gsm or more and 60 gsm or less. The basis weight of the base paper in the wrapper 34 according to this embodiment is 43 gsm. The thickness of the wrapper 34 is not limited, and is typically 10 μm or more and typically 100 μm or less from the viewpoints of rigidity, breathability, and ease of adjustment during papermaking. In this embodiment, the thickness of the wrapper 34 is, for example, 45 μm. The air permeability of the wrapper 34 is preferably 0.

[0037] The shape of the wrapper 34 of the distal rod 22 can be, for example, a rectangular shape such as a square or a rectangle. When the wrapper 34 is used to wrap the filler 32, the length of one side of the wrapper 34 can be approximately 5 mm, which defines the length along the axial direction of the distal rod 22. The length of the other side of the wrapper 34 defines the diameter of the distal rod 22. The length of the other side of the wrapper 34 is approximately 24 mm. In this embodiment, the length of the other side of the wrapper 34 is 23.7 mm.

[0038] The wrapper 34 may contain a filler. The filler content may be 10% by weight or more and less than 60% by weight, based on the total weight of the wrapper 34. In the wrapper 34, the filler content is preferably 15% by weight or more and 45% by weight or less within a preferred basis weight range (25 gsm or more and 45 gsm or less). Examples of fillers that can be used include calcium carbonate, titanium dioxide, and kaolin. However, calcium carbonate is preferred from the viewpoint of enhancing flavor and whiteness.

[0039] Various auxiliary agents other than the base paper and fillers may be added to the wrapper 34. For example, a water resistance improver may be added to improve water resistance. Examples of water resistance improvers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea-formaldehyde resin, melamine-formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more. A paper strength agent may also be added as an auxiliary agent, such as polyacrylamide, cationic starch, oxidized starch, carboxymethyl cellulose (CMC), polyamide epichlorohydrin resin, and polyvinyl alcohol. It is known that the use of oxidized starch, especially in very small amounts, improves breathability. The wrapper 34 may also be appropriately coated.

[0040] A coating agent may be applied to at least one of the two surfaces of the wrapper 34, the front surface (external surface) and the back surface (inner surface). The type of coating agent is not particularly limited, but a coating agent capable of forming a film on the surface of the paper and reducing liquid permeability is preferred. Examples of coating agents include alginic acid and its salts (e.g., sodium salts), polysaccharides such as pectin, cellulose derivatives such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, and nitrocellulose, starch and its derivatives (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch, and ester derivatives such as starch acetate, starch phosphate, and starch octenyl succinate).

[0041] A first seam 36 is formed in the wrapper 34, where the overlapping portions 34a are fixed to each other with a water-based adhesive AG, which will be described later. The fixing structure of the overlapping portions 34a of the wrapper 34 of the tip rod 22 described above will be described below. The circumferential width of the overlapping portions 34a of the wrapper 34 is 1 mm to 3 mm, and more preferably approximately 2.4 mm to 2.7 mm.

[0042] The wrapper 34 of the distal rod 22 will now be described with reference to Figures 4 to 8. Figure 4 is a schematic diagram showing the state in which the wrapper 34 is wrapped around the outer periphery of the filler 32 of the distal rod 22. Figure 5 is a schematic diagram indicated by arrow V in Figure 4. Figure 6 is a schematic diagram showing the first seam portion 36 that secures the overlapping portion 34a of the wrapper 34 of the distal rod 22, as viewed from the direction indicated by arrow VI in Figure 5.

[0043] As shown in Figures 4 and 5, the wrapper 34 is wound around the outer periphery of the filler 32, which is formed, for example, from a sheet material into a generally cylindrical rod shape. As shown in Figures 5 and 6, the wrapper 34 is provided with a first seam 36 in which ends of a generally rectangular sheet material are overlapped and bonded with a water-based adhesive AG to fix an overlapping portion 34a of the wrapper 34. The first seam 36 is provided along the axial direction of the rod portion 12 in the overlapping portion 34a of the ends of the wrapper 34.

[0044] 5 and 6 , the first seam 36 does not use a hot-melt adhesive (including a hot-melt glue) that melts when heated to an appropriate temperature (for example, a temperature suitable for generating an aerosol with the tobacco rod 24) as a fixing member for fixing the overlapping portion 34a. In other words, the first seam 36 uses, as a fixing member for fixing the overlapping portion 34a, only a glue that prevents the fixing strength from decreasing to a desired level compared to before heating when heated to an appropriate temperature, or a glue or adhesive that prevents the fixing strength from decreasing to a desired level compared to before heating when heated to an appropriate temperature, i.e., a water-based adhesive.

[0045] The first seam portion 36 has a region 36a where the water-based adhesive AG is applied to the overlapping portion 34a of the wrapper 34. The region 36a is generally rectangular.

[0046] The water-based adhesive AG is an adhesive whose hardening is accelerated by evaporation of the water in the adhesive, thereby increasing its bonding strength. The water-based adhesive AG contains one of ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), and starch paste, or a mixture of at least two of EVA, PVA, CMC, and starch paste. That is, the water-based adhesive AG contains a water-based adhesive that hardens upon evaporation of the water contained therein. In this embodiment, the water-based adhesive AG is described as an example using ethylene-vinyl acetate copolymer resin (EVA). The composition of the water-based adhesive AG is 54% EVA and 46% water and the remainder. An example of the viscosity of the water-based adhesive AG during the manufacture of the tip rod 22 is 1100 mPa·s. This is also the same as the water-based adhesive AG used for the wrappers 44, 54, 74, etc., described below.

[0047] As described above, the water-based adhesive AG is an adhesive whose bonding strength increases as the water in the adhesive evaporates. Therefore, it is expected that the strength of the seam portion 36 will increase when heated to an appropriate temperature using the heater 320 of the device 300, and that the strength of the seam portion 36 will not decrease. In other words, the wrapper 34 prevents the strength of the seam portion 36 from decreasing when the seam portion 36 is heated.

[0048] The region 36a of the first seam portion 36 is provided along the axial direction of the rod portion 12. In the present embodiment, the water-based adhesive AG is continuous in the region 36a along the axial direction of the rod portion 12. In the present embodiment, the water-based adhesive AG is preferably applied solidly in the region 36a.

[0049] Furthermore, a region 38b free of water-based adhesive (adhesive-free region) is formed between the region 36a and the circumferentially outer end face 34b of the wrapper 34. The circumferential width of the water-based adhesive-free region 38b, which intersects with the axial direction of the rod portion 12, i.e., the distance between the region 36a in the wrapper 34 and the circumferentially outer end face 34b of the overlapping portion 34a, is preferably greater than 0 mm and less than 2 mm. It is more preferable that this circumferential width be, for example, 0.1 mm to 1 mm.

[0050] Furthermore, a region 38c where there is no water-based adhesive (adhesive-free region) is formed between the region 36a and the opposite end face 34c of the wrapper 34. The circumferential width of the region 38c where there is no water-based adhesive, which intersects with the axial direction of the rod portion 12, is preferably 0.1 mm to 1 mm. Note that the region 38c does not have to be present, and the water-based adhesive AG may be applied up to the end face 34c, or may be applied to the filler 32 beyond the end face 34c. In other words, the filler 32 and the wrapper 34 may be bonded together by the water-based adhesive AG.

[0051] The circumferential width of the region 36a varies depending on the circumferential width of the overlapping portion 34a. When the width of the overlapping portion 34a is 2.4 mm, the width of the region 36a is preferably approximately 1.7 mm or more and 2.3 mm or less. When the width of the overlapping portion 34a is 2.7 mm, the width of the region 36a is preferably 1.9 mm or more and 2.6 mm or less. The area of ​​the region 36a is preferably approximately 70% or more of the area of ​​the overlapping portion 34a. In this way, by ensuring adhesion over an appropriate area in the first seam portion 36, stable peel strength can be maintained.

[0052] The amount of the water-based adhesive AG in the region 36a is preferably, for example, 1 mg / 120 mm to 5 mg / 120 mm.

[0053] Fig. 7 shows a table illustrating the amount of water-based adhesive AG in the region 36a of the first seam portion 36, the total amount of water-based adhesive, the feed speed during production of the first seam portion 36 of the wrapper 34, the peel strength of the first seam portion 36 of the wrapper 34, and an evaluation of the peel strength of the first seam portion 36 of the wrapper 34 for four samples. Fig. 7 also shows a table illustrating the amount of water-based adhesive AG in the circumferentially inner region 46a, the amount of water-based adhesive AG in the circumferentially outer region 46b, the total amount of water-based adhesive AG in the seam portion, the feed speed during production of the seam portion of the wrapper, the peel strength of the seam portion, and an evaluation of the peel strength of the seam portion for three samples (see Figs. 9 to 11).

[0054] Fig. 8 shows a correlation diagram of the peel strength (g) of the first seam portion 36 24 hours after manufacture versus the total amount (mg) of water-based adhesive AG per 120 mm. In the graph of Fig. 8, the horizontal axis represents the amount (mg / 120 mm) of water-based adhesive AG in the outer circumferential region 36a, and the vertical axis represents the peel strength (g).

[0055] The peel strength of the first seam 36 was measured as follows using a Shimadzu EZ-SX (5N load cell) measuring device at a pulling speed of 100 mm / min. The wrapper 34 used here was sufficiently long, having not yet been cut to a predetermined length (e.g., 5 mm). The wrapper 34 of the prepared distal rod 22 was cut parallel to the axial direction of the rod portion 12 on the opposite side of the first seam 36 (the side of the distal rod 22 opposite the first seam 36 across the central axis of the distal rod 22). In other words, the cut direction of the wrapper 34 was parallel to the axial direction of the region 36a. The tip of the first seam 36 of the cut wrapper 34 was manually peeled back by approximately 3 mm to create a pair of tabs. The pair of grip portions was created by peeling the region 36a approximately 3 mm from one edge of the wrapper 34 perpendicular to the outer circumferential end face 34b and the inner circumferential end face 34c. Each of the pair of grip portions was then attached to the clamp of a peel tester, and a T-type peel test was performed. That is, the overlapping portion 34a of the wrapper 34, which was adhered with the water-based adhesive AG, was peeled at a predetermined speed along the longitudinal axis of the rod portion 12 up to a displacement of 70 mm. The measurement results were expressed as the median value of the load generated from the start of measurement (start of peeling) up to a displacement of 70 mm, and the average value of five repetitions was expressed in grams (g).

[0056] It should be noted that, based on experience, it is sufficient that the peel strength of the overlapping portion 34a is maintained at 10 g or more when the flavor inhalation article 10 is properly inserted into the housing portion 311 of the device 300 and the outer peripheries of the tip rod 22 and the tobacco rod 24 are heated to an appropriate temperature by the heater 320. Therefore, according to the table shown in Fig. 7 and the graph shown in Fig. 8, it is preferable that the total amount of the water-based adhesive AG per 120 mm is, for example, 1.1 mg or more.

[0057] The first seam portion 36 according to this embodiment is fixed so that the peel strength is 10 g or more.

[0058] As shown in FIG. 8 , the peel strength of the first seam portion 36 increases as the total amount of water-based adhesive AG increases. However, the peel strength does not change significantly between the example where the total amount of water-based adhesive AG is 2.4 mg / 120 mm and the example where the total amount of water-based adhesive AG is 4.8 mg / 120 mm. Therefore, it is expected that the total amount of water-based adhesive AG in the first seam portion 36 should be approximately 2.4 mg / 120 mm. If the total amount of water-based adhesive AG is too large, it is expected that the water-based adhesive AG will protrude to the inside of the end face 34 c or the outside in the circumferential direction of the end face 34 b. Therefore, the first seam portion 36 of the wrapper 34 of the distal end rod 22 is manufactured by adjusting the amount of water-based adhesive AG so that it has an appropriate peel strength.

[0059] The tobacco rod 24 has a filler material (tobacco filler material) 42 as an aerosol-generating base material, and a sheet-like wrapper (wrapping paper) 44 .

[0060] The filler 42 may be a tobacco sheet and / or cut tobacco. The material of the tobacco shreds contained in the filler 42 is not particularly limited, and known materials such as lamina or ribs can be used. Alternatively, dried tobacco leaves may be crushed to an average particle size of 20 μm or more and 200 μm or less to obtain tobacco shreds, which are then homogenized and processed into a sheet (hereinafter also referred to as a homogenized sheet) and then shredded. Furthermore, the filler 42 may be a so-called strand type, in which a homogenized sheet having a length approximately equal to the longitudinal direction of the tobacco rod 24 is shredded approximately parallel to the longitudinal direction of the tobacco rod 24. The width of the tobacco shreds is preferably 0.5 mm or more and 2.0 mm or less for filling the tobacco rod 24. The content of dried tobacco leaves contained in the filler 42 of the tobacco rod 24 is not particularly limited, but may be 200 mg / (tobacco rod) or more and 800 mg / (tobacco rod) or less.

[0061] Various types of tobacco can be used for the tobacco leaves used in producing the shredded tobacco and homogenized sheets. Examples include flue-cured tobacco, burley tobacco, oriental tobacco, native tobacco, other Nicotiana tabacum varieties, Nicotiana rustica varieties, and mixtures thereof. Mixtures can be made by appropriately blending the aforementioned varieties to achieve the desired flavor.

[0062] The moisture content of the tobacco filler 42 can be, for example, 10% by weight or more and 15% by weight or less, based on the total weight of the tobacco filler 42. This moisture content suppresses the occurrence of stains on the wrapper (second wrapper) 44 after wrapping, improving the suitability for wrapping during the production of the tobacco rod 24. There are no particular restrictions on the size or preparation method of the tobacco shreds contained in the tobacco filler 42. For example, dried tobacco leaves shredded to a width of 0.5 mm or more and 2.0 mm or less may be used. Furthermore, when using a ground homogenized sheet, dried tobacco leaves may be ground to an average particle size of approximately 20 μm to 200 μm, homogenized, and then processed into a sheet, which may then be shredded to a width of 0.5 mm or more and 2.0 mm or less.

[0063] The tobacco filler 42 (filler of the tobacco rod (tobacco segment) 24) may contain an aerosol-generating substrate that generates an aerosol when heated by the heater 320. The type of aerosol-generating substrate is not particularly limited, and extracts from various natural products and / or their constituent components can be selected depending on the application. Examples of aerosol-generating substrates include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The content of the aerosol-generating substrate in the tobacco filler 42 is not particularly limited, and from the viewpoints of generating sufficient aerosol and imparting a good flavor, it is preferable that the content be typically 5% by weight or more and typically 50% by weight or less of the total amount of the tobacco filler 42.

[0064] The tobacco filler 42 may contain a flavoring. The type of the flavoring is not particularly limited, and from the viewpoint of imparting a good flavor, the following may be used: acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, Peru balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, β-carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-citronellal, Nerol, clary sage extract, cocoa, coffee, konjac oil, coriander oil, cumin aldehyde, davana oil, delta-decalactone, gamma-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanoate, ethyl oleate, ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3,(5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract, gamma-heptalactone, gamma-hexalactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenylhexyl acetate, honey, 4-hydroxy-3-pentenoic acid, lauryl methylpropional Ingredients: methicone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, beta-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpeneless oil, licorice extract, linalool, linalyl acetate, robertia jasmine Orris root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, para-methoxybenzaldehyde, methyl 2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, honey, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentadeca Calactone, peppermint oil, petitgrain Paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexene) Examples of the fragrance include 2-(2-(2-oxadienyl)-2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), and ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5), with menthol being particularly preferred. These fragrances may be used alone or in combination of two or more.

[0065] The content of the flavoring material in the tobacco filler 42 is not particularly limited, but from the viewpoint of imparting a good flavor, it is usually 10,000 ppm or more and preferably 70,000 ppm or less.

[0066] The wrapper (wrapping paper) 44 is a sheet material for covering the outer periphery of the tobacco filler 42. The configuration of the wrapper 44 is not particularly limited, and a general wrapper can be used. The base paper for the wrapper 44 of the tobacco rod 24 can be, for example, the same as the wrapper 34 of the tip rod 22.

[0067] In this embodiment, the length of the tobacco rod 24 along the axial direction is, for example, 15 mm. The length of one side of the wrapper 44 can be approximately 15 mm, which defines the length of the tobacco rod 24 along the axial direction. The length of the other side of the wrapper 44 defines the diameter of the tobacco rod 24. The length of the other side of the wrapper 44 is approximately 24 mm. In this embodiment, the length of the other side of the wrapper 44 is 23.7 mm.

[0068] A second seam 46 is formed in the wrapper 44, where the overlapping portions 44a are fixed to each other with an aqueous adhesive AG. The fixing structure of the wrapper 44 of the tobacco rod 24 will be described below with reference to Figures 9 to 11. The circumferential width of the overlapping portion 44a of the wrapper 44, like the circumferential width of the overlapping portion 34a of the wrapper 34, is 1 mm to 3 mm, and more preferably 2.4 mm to 2.7 mm.

[0069] Fig. 9 is a schematic diagram showing a state in which the wrapper 44 is wrapped around the outer periphery of the filler material 42 of the tobacco rod 24. Fig. 10 is a schematic diagram indicated by arrow X in Fig. 9. Fig. 11 is a schematic diagram showing a second seam portion 46 that secures the overlapping portion 44a of the wrapper 44 of the tobacco rod 24, as seen from the direction indicated by arrow XI in Fig. 10.

[0070] As shown in Figures 9 and 10, the wrapper 44 is wound around the outer periphery of the filler 42, which is formed in a generally cylindrical rod shape. The wrapper 44 is provided with a second seam 46, in which the ends of a generally rectangular sheet material are overlapped and bonded together with a water-based adhesive AG to secure the overlapping portion 44a of the wrapper 44. Similar to the first seam 36, the second seam 46 preferably uses a water-based adhesive AG, and does not use a hot-melt adhesive that melts upon heating. In other words, the second seam 46 uses, as a securing member, a glue that prevents the securing strength from decreasing to a desired level when heated to an appropriate temperature, or a glue or adhesive that prevents the securing strength from decreasing to a desired level when heated to an appropriate temperature, i.e., only a water-based adhesive, as a securing member for securing the overlapping portion.

[0071] 10 and 11, the second seam portion 46 has a 2-1 region 46a to which the water-based adhesive AG is applied, and a 2-2 region 46b to which the water-based adhesive AG is applied, the 2-1 region 46a being adjacent to the circumferential outside of the 2-1 region 46a in the overlapping portion 44a of the wrapper 44. The 2-1 region 46a and the 2-2 region 46b are each substantially rectangular. The circumferential width of each of the 2-1 region 46a and the 2-2 region 46b is, for example, 0.1 mm to 1 mm, and preferably 0.2 mm to 0.5 mm.

[0072] The water-based adhesive AG of the second seam portion 46, like the water-based adhesive AG of the first seam portion 36, includes one of ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), and starch glue, or a mixture of at least two of EVA, PVA, CMC, and starch glue.

[0073] The 2-1 region 46a and the 2-2 region 46b are each provided along the axial direction of the rod portion 12. In the present embodiment, the 2-1 region 46a and the 2-2 region 46b each have a continuous water-based adhesive AG along the axial direction of the rod portion 12. In the present embodiment, the water-based adhesive AG is preferably applied solidly in the 2-1 region 46a, and the water-based adhesive AG is preferably applied solidly in the 2-2 region 46b.

[0074] Between the 2-1 region 46a and the 2-2 region 46b, a region 48a free of water-based adhesive (adhesive-free region) is provided along the axial direction of the rod portion 12. The circumferential width of the region 48a free of water-based adhesive between the 2-1 region 46a and the 2-2 region 46b, which intersects with the axial direction of the rod portion 12, is preferably 0.1 mm to 2 mm.

[0075] Furthermore, a region 48b free of water-based adhesive (adhesive-free region) is formed between the 2-2 region 46b and the circumferentially outer end face 44b of the wrapper 44. The circumferential width of the water-based adhesive-free region 48b, which intersects with the axial direction of the rod portion 12, i.e., the distance between the 2-2 region 46b of the wrapper 44 and the circumferentially outer end face 44b of the overlapping portion 44a, is preferably greater than 0 mm and less than 2 mm. It is more preferable that this circumferential width be, for example, 0.1 mm to 1 mm.

[0076] Furthermore, a region 48c without the water-based adhesive (adhesive-free region) is formed between the 2-1 region 46a and the opposite end face 44c of the wrapper 44. The circumferential width of the region 48c without the water-based adhesive, which intersects with the axial direction of the rod portion 12, is preferably 0.1 mm to 1 mm. Note that the region 48c may not be present, and the water-based adhesive AG may be applied up to the end face 44c, or may be applied to the filler 42 beyond the end face 44c. In other words, the filler 42 and the wrapper 44 may be bonded together by the water-based adhesive AG.

[0077] The sum of the amount of water-based adhesive AG in the 2-1 region 46a and the amount of water-based adhesive AG in the 2-2 region 46b is, for example, 1 mg / 120 mm to 5 mg / 120 mm. As shown in Samples 6 and 7 of Figure 7, it is preferable that the amount of water-based adhesive AG in the 2-1 region 46a be greater than the amount of water-based adhesive AG in the 2-2 region 46b. As shown in Sample 5 of Figure 7, it is also preferable that the amount of water-based adhesive AG in the 2-1 region 46a and the amount of water-based adhesive AG in the 2-2 region 46b be approximately equal.

[0078] As with the wrapper 34, it is preferable that 70% or more of the overlapping portion 44a of the wrapper 44 be fixed with the water-based adhesive AG. By ensuring adhesion over an appropriate area, it is possible to stably maintain peel strength.

[0079] Furthermore, like the first seam portion 36, the second seam portion 46 can maintain a fixed state at the overlapping portion 44a even when heated to an appropriate temperature at which aerosols are generated from the filler material 42 of the tobacco rod 24, for example.

[0080] By dividing the seam 46 into two sections, one for the water-based adhesive AG in the 2-1 region 46a and the other for the water-based adhesive AG in the 2-2 region 46b while maintaining an appropriate amount of water-based adhesive AG throughout the entire second seam 46, the seam 46 can dry more quickly than if the seam 46 were formed in a single region. Therefore, the seam 46 having multiple regions 46a and 46b allows the water-based adhesive AG to dry more quickly, enabling the seam 46 to achieve appropriate bonding strength more quickly. This type of structure can also be applied to the first seam 36 or the third seam 56 of the wrapper 54.

[0081] As described above, the water-based adhesive AG is an adhesive whose bonding strength increases as the water in the adhesive evaporates. Therefore, it is expected that the strength of the seam portion 46 will increase when heated to an appropriate temperature using the heater 320 of the device 300, and that the strength of the seam portion 46 will not decrease. In other words, the wrapper 44 prevents the strength of the seam portion 46 from decreasing when the seam portion 46 is heated.

[0082] The cooling section (paper tube) 14 is not particularly limited as long as it has the function of cooling the vapor generated by heating the tobacco rod 24, and an example thereof is a cylindrical piece of cardboard (sheet material). In this case, the inside of the cylinder is hollow, and the vapor containing the aerosol-generating base material and tobacco flavor components is cooled by contact with the air in the hollow.

[0083] One embodiment of the cooling section 14 may be a paper tube formed by processing a single sheet of paper or multiple sheets of paper into a cylindrical shape. Furthermore, in order to increase the cooling effect by bringing room-temperature external air into contact with high-temperature steam, the cooling section 14 is provided with openings 14a for introducing air from the outside. The number of openings 14a in the cooling section 14 is not particularly limited. In this embodiment, multiple openings 14a are arranged at regular intervals around the circumferential direction of the cooling section 14. Furthermore, the group of openings 14a arranged around the circumferential direction of the cooling section 14 may be formed in multiple stages along the axial direction of the cooling section 14. By providing the openings 14a in the cooling section 14, low-temperature air flows into the cooling section 14 from the outside when the flavor inhalation article 10 is inhaled, thereby lowering the temperature of the volatile components and air flowing in from the tobacco rod 24. Furthermore, the vapor containing the aerosol-generating substrate and tobacco flavor components is condensed by being cooled by the low-temperature air introduced into the cooling section 14 through the openings 14a. This promotes the generation of aerosols and also makes it possible to control the size of the aerosol particles. Furthermore, by applying a polymer coating such as polyvinyl alcohol or a polysaccharide coating such as pectin to the inner surface of the paper tube, the cooling effect can be increased by utilizing the heat of dissolution that accompanies the heat absorption and phase change of the coating. The airflow resistance of this cylindrical cooling segment is zero mmH. ２ It becomes O.

[0084] When the cooling section 14 is filled with a sheet or the like for cooling the volatile components and air flowing from the tobacco rod 24 into the cooling section 14, the total surface area of ​​the cooling section 14 is not particularly limited, and may be, for example, 300 mm ２ / mm or more, 1000mm ２ This surface area is the surface area per length (mm) of the cooling section 14 in the air flow direction. The total surface area of ​​the cooling section 14 is 400 mm ２ / mm or more, and ２ / mm or less is preferable.

[0085] It is desirable for the cooling portion 14 to have a structure with a large surface area on its inner periphery. Thus, in a preferred embodiment, the cooling portion 14 may be formed from a thin sheet of material that is wrinkled to form channels, and then pleated, gathered, and folded. The more folds or pleats within a given volume of the element, the greater the total surface area of ​​the cooling portion 14. The thickness of the constituent material of the cooling portion 14 is not particularly limited and may be, for example, 5 μm or more and 500 μm or less.

[0086] From the viewpoint of reducing the environmental impact, it is desirable to use paper as the material for the cooling sheet member of the cooling unit 14. The paper as the material for the cooling sheet desirably has a basis weight of 30 to 100 gsm and a thickness of 20 to 100 μm. From the viewpoint of reducing the removal of flavor source components and aerosol-generating base components in the cooling unit 14, it is desirable for the paper as the material for the cooling sheet to have low air permeability, preferably 10 CU or less. By applying a polymer porting such as polyvinyl alcohol or a coating of a polysaccharide such as pectin to the paper as the material for the cooling sheet, the cooling effect can be increased by utilizing the heat of solution associated with the endothermic heat of the coating or the phase change.

[0087] The opening 14a in the cooling part 14 is preferably positioned at a distance of 1 mm or more, and more preferably 2 mm or more, from the boundary between the cooling part 14 and the mouthpiece part 16. This not only improves the cooling capacity of the cooling part 14, but also prevents components generated by heating from remaining in the cooling part 14, thereby improving the delivery amount of the components.

[0088] The axial length (airflow direction) of the cooling section 14 is not particularly limited, but is usually 10 mm or more, and preferably 40 mm or less. It is particularly preferable that the axial length of the cooling section 14 be 20 mm. By setting the axial length of the cooling section 14 to be equal to or greater than the above-mentioned lower limit, a sufficient cooling effect can be ensured and a good flavor can be obtained. Furthermore, by setting the axial length of the cooling section 14 to be equal to or less than the above-mentioned upper limit, loss due to adhesion of steam and aerosols generated during use to the inner wall of the cooling section 14 can be suppressed.

[0089] The fixing structure of the cooling section 14 is preferably similar to the fixing structure of the wrapper 34 of the tip rod 22 or the fixing structure of the wrapper 44 of the tobacco rod 24. Therefore, a detailed description of the fixing structure of the cooling section 14 will be omitted. Furthermore, a hot-melt adhesive that melts when heated to an appropriate temperature (for example, a temperature suitable for generating an aerosol from the tobacco rod 24) is not used as a fixing member for fixing the overlapping portions in the seam portion of the cooling section 14. In other words, only a glue that prevents the fixing strength from decreasing to a desired level when heated to an appropriate temperature compared to before heating, or a glue or adhesive that prevents the fixing strength from decreasing to a desired level when heated to an appropriate temperature compared to before heating, i.e., a water-based adhesive, is used as a fixing member for fixing the overlapping portions in the seam portion of the cooling section 14.

[0090] In relation to the device 300, when the cooling unit 14 is disposed in the non-heated region A2, which is not heated, a water-based adhesive and a hot-melt adhesive may be applied side by side to the seam of the cooling unit 14. In this case, it is preferable to apply the water-based adhesive that can be used in the wrappers 34, 44 on the inner side in the circumferential direction and the hot-melt adhesive on the outer side in the circumferential direction. This is the same as the fixing structure of the tipping paper 18 described later and shown in Figures 15 and 16, so a detailed description thereof will be omitted.

[0091] The wrapper 34 of the tip rod 22, the wrapper 44 of the tobacco rod 24, and the outer periphery of the cooling unit 14 are fixed by a sheet-like outer wrapper 54 that connects the tip rod 22, the tobacco rod 24, and the cooling unit 14. The outer wrapper 54 covers the outer peripheries of the wrappers 34 and 44. It is preferable that the front end of the outer wrapper 54 is aligned with the front end of the tip rod 22. The rear end of the outer wrapper 54 is located at an appropriate position between the front and rear ends of the cooling unit 14. In other words, the outer wrapper 54 covers the outer periphery of at least a portion of the cooling unit (cooling segment) 14.

[0092] The fixing structure of the outer wrapper 54 will be described with reference to Figures 12 to 14. The circumferential width of the overlapping portion 54a of the wrapper 54 is 1 mm to 3 mm, and more preferably about 2.4 mm to 2.7 mm.

[0093] Here, Fig. 12 is a schematic diagram showing a state in which the wrapper 54 is wound around the outer periphery of the tip rod 22, the tobacco rod 24, and the cooling unit 14. Fig. 13 is a schematic diagram of the rod unit 12 and the cooling unit 14 as viewed from the direction indicated by arrow XII in Fig. 12. Fig. 14 is a schematic diagram showing a part of the outer wrapper as viewed from the direction indicated by arrow XIV in Fig. 13.

[0094] As shown in Figures 12 and 13, the wrapper 54 is formed in the shape of a cylindrical rod, with the tip rod 22, tobacco rod 24, and cooling section 14 all having approximately the same diameter, and the tobacco rod 24 is adjacent to the downstream side of the tip rod 22, and the cooling section 14 is adjacent to the downstream side of the tobacco rod 24, and the wrapper 54 wraps around the outer periphery.

[0095] 13 and 14, the wrapper 54 is provided with a third seam 56 in which the ends of the substantially rectangular sheet material are overlapped and bonded with a water-based adhesive AG to fix the overlapping portion 54a of the wrapper 54. The third seam 56 does not use a hot-melt adhesive that melts when heated.

[0096] The third seam 56 is provided along the axial direction of the rod portion 12 in the overlapping portion 54a between the ends of the wrapper 54. The third seam 56 includes a third-1 region 56a to which a water-based adhesive 57a is applied, and a third-2 region 56b to which a water-based adhesive 57b is applied, the third-1 region 56a being provided adjacent to the circumferential outside of the third-1 region 56a of the overlapping portion 54a of the wrapper 54. Therefore, the seam 56 having multiple regions 56a, 56b, allows the water-based adhesives 57a, 57b to dry more quickly, enabling the seam 56 to achieve appropriate bonding strength more quickly. The third-1 region 56a and the third-2 region 56b are each substantially rectangular. The circumferential width of the overlapping portion 54a of the wrapper 54 is preferably approximately 2.4 mm to 2.7 mm, similar to the wrappers 34 and 44.

[0097] The water-based adhesive AG contains one of ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), and starch glue, or a mixture of at least two of EVA, PVA, CMC, and starch glue. As described above, the water-based adhesive AG is an adhesive whose bonding strength increases as the water in the adhesive evaporates. Therefore, heating to an appropriate temperature using the heater 320 of the device 300 is expected to increase the strength of the seam portion 56, and is not expected to decrease the strength of the seam portion 56. In other words, the wrapper 54 prevents the strength of the seam portion 56 from decreasing when the seam portion 56 is heated.

[0098] The composition of the water-based adhesive AG is 54% EVA and 46% water and the remainder. An example of the viscosity of the water-based adhesive AG when manufacturing the tip rod 22 is 1100 mPa·s.

[0099] The 3-1 region 56a and the 3-2 region 56b are each provided along the axial direction of the rod portion 12. In the present embodiment, the 3-1 region 56a and the 3-2 region 56b each have a continuous water-based adhesive AG along the axial direction of the rod portion 12. In the present embodiment, the water-based adhesive AG is preferably applied solidly in the regions 56a and 56b.

[0100] Between the 3-1 region 56a and the 3-2 region 56b, a region (adhesive-free region) 58a free of water-based adhesive is provided along the axial direction of the rod portion 12. The circumferential width of the region 58a free of water-based adhesive between the 3-1 region 56a and the 3-2 region 56b, which intersects with the axial direction of the rod portion 12, is preferably 0.1 mm to 2 mm.

[0101] Furthermore, a region 58b free of the water-based adhesive (adhesive-free region) is formed between the 3-2 region 56b and the end surface 54b of the wrapper 54. The circumferential width of the water-based adhesive-free region 58b, which intersects with the axial direction of the rod portion 12, is preferably 0.1 mm to 2 mm.

[0102] Furthermore, between the 3-1 region 56a and the opposite end face 54c of the wrapper 54, a water-based adhesive AG is applied beyond the end face 54c onto the outer periphery of the tip rod 22, the tobacco rod 24, and the cooling section 14. In other words, the water-based adhesive AG bonds the tip rod 22, the tobacco rod 24, and the cooling section 14 to the wrapper 54.

[0103] The sum of the amount of water-based adhesive AG in the 3-1 region 56a and the amount of water-based adhesive AG in the 3-2 region 56b is, for example, 1 mg / 120 mm to 5 mg / 120 mm. The amount of water-based adhesive AG in the 3-1 region 56a is preferably greater than the amount of water-based adhesive AG in the 3-2 region 56b, but the amounts may be the same.

[0104] Therefore, like the second seam portion 46, the third seam portion 56 can maintain a fixed state at the overlapping portion 54a even when heated to an appropriate temperature at which aerosols are generated from the filler material 42 of the tobacco rod 24, for example.

[0105] As with the wrapper 34, the area of ​​the region 56a is preferably approximately 70% or more of the area of ​​the overlapping portion 54a. In this way, by ensuring adhesion over an appropriate area in the third seam portion 56, it is possible to stably maintain peel strength.

[0106] The structure of the third seam portion 56 may be the same as the structure of the first seam portion 36 .

[0107] The configuration of the mouthpiece portion 16 is not particularly limited as long as it has the function of a general filter.

[0108] 3A, in this embodiment, the mouthpiece portion 16 has a first mouthpiece segment 62 and a second mouthpiece segment 64. Here, the first mouthpiece segment 62 includes the mouth end Me, and the second mouthpiece segment 64 is adjacent to the distal end of the first mouthpiece segment 62. The distal end of the second segment 62 is adjacent to the rear end of the cooling section 14.

[0109] Typical functions of the mouthpiece 16 include, for example, adjusting the amount of air mixed in when inhaling aerosols, reducing flavor, and reducing nicotine and tar, but it is not necessary for the mouthpiece 16 to have all of these functions. Furthermore, in electrically heated tobacco products, which tend to produce fewer components and have a lower tobacco filler filling rate than cigarette products, another important function is to suppress the filtering function while preventing the filler 42 from falling out of the tobacco rod 24.

[0110] The cross section of the mouthpiece portion 16 is substantially circular. The diameter of the mouthpiece portion 16 can be changed as needed to suit the size of the product, but is preferably about the same as that of the rod portion 12. If the cross section is not circular, the above diameter applies to a circle having the same area as the cross section. The axial length of the mouthpiece portion 16 can be changed as needed to suit the size of the product, but is usually preferably 5 mm or more and 35 mm or less. The shape and dimensions of the filter material can be adjusted as needed so that the shape and dimensions of the mouthpiece portion 16 fall within the above range.

[0111] The airflow resistance per 120 mm of the axial length of the mouthpiece portion 16 is not particularly limited, but is usually 40 mmH ２ O or more, 300mmH ２ It is preferable that the resistance to airflow of the mouthpiece portion 16 is equal to or less than 0. It is known that the relationship between the airflow resistance of the mouthpiece portion 16 and the length of the mouthpiece portion 16 is proportional within the length range typically used (5 mm to 200 mm), and if the length of the mouthpiece portion 16 is doubled, the airflow resistance also doubles.

[0112] The first mouthpiece segment 62 has a cylindrical cellulose acetate tow filter 72 as a filler, and a sheet-like filter wrapper (wrapping paper) 74 around which the acetate tow filter 72 is wrapped.

[0113] The density of the acetate tow filter 72 in the mouthpiece portion 16 is not particularly limited, but is usually 0.10 g / cm ３ Above, 0.25g / cm ３ It is preferable that:

[0114] There are no particular limitations on the single filament fineness and total filament fineness of the cellulose acetate tow filter 72. When the circumference of the mouthpiece portion 16 is 22 mm, the single filament fineness is preferably 5 to 20 g / 9000 m and the total filament fineness is preferably 12,000 to 30,000 g / 9000 m. When the mouthpiece portion 16 is formed by filling the cellulose acetate tow filter 72, triacetin may be added in an amount of 5 to 10 wt % relative to the weight of the cellulose acetate tow filter 72 to improve filter hardness.

[0115] Furthermore, the first mouthpiece segment 62 may use other alternative filters, such as a paper filter filled with sheet-like pulp paper as a filtering material, instead of the cellulose acetate tow filter 72. The paper filter may be the same as the filler 32 of the distal rod 22.

[0116] A flavoring may be added to the acetate tow filter 72 of the mouthpiece portion 16. Adding a flavoring to the acetate tow filter 72 can increase the amount of flavor delivered during use compared to adding a flavoring to the tobacco filler 42 constituting the tobacco rod 24. The degree of increase in the amount of flavor component delivered can be further increased depending on the position of the openings 14a provided in the cooling portion 14. There are no particular restrictions on the method of adding a flavoring to the acetate tow filter 72; the flavoring may be added so that it is substantially uniformly dispersed in the acetate tow filter 72 to which the flavoring is to be added. The amount of flavoring added may be 10 to 100% by volume of the acetate tow filter 72. The type of flavoring is not particularly limited, but the same flavoring as that contained in the tobacco filler 42 described above may be used.

[0117] At least a portion of the acetate tow filter 72 of the first mouthpiece segment 62 of the mouthpiece portion 16 may be doped with activated carbon.

[0118] The mouthpiece portion 16 may include a capsule having a crushable shell made of gelatin or the like inside the acetate tow filter 72 of the first mouthpiece portion 16. The capsule may be of any shape, but may be easily crushable by the user's fingers, preferably spherical. The additives contained in the capsule may include any of the additives described above, but preferably include flavorings and activated carbon. Examples of flavorings include menthol, spearmint, peppermint, fenugreek, clove, medium-chain triglycerides (MCTs), or combinations thereof.

[0119] From the viewpoint of improving strength and structural rigidity, the first mouthpiece segment 62 preferably includes a filter wrapper 74 around the acetate tow filter 72. The form of the filter wrapper 74 is not particularly limited, and it may include one or more rows of adhesive-containing seams. The adhesive may include both a water-based adhesive and a hot-melt adhesive, and the hot-melt adhesive may further include polyvinyl alcohol.

[0120] The thickness of the filter wrapper 74 is not particularly limited, but is typically preferably 20 μm or more and 140 μm or less. The basis weight of the filter wrapper 74 is not particularly limited, but is typically preferably 20 gsm or more and 100 gsm or less. The filter wrapper 74 may be coated or uncoated, but is preferably coated with a desired material to provide functions other than strength and structural rigidity.

[0121] The second mouthpiece segment 64 is formed, for example, as a channel filter (hollow segment). The second mouthpiece segment 64 includes a filling layer 64a having one or more hollow channels. The filling layer 64a is made of, for example, fibers, and because the fiber packing density is high, when a user inhales, air and aerosol flow only through the hollow channels and hardly at all through the filling layer 64a itself. In the flavor inhalation article 10, when it is desired to reduce the loss of aerosol components due to filtration in the mouthpiece portion 16, shortening the length of the first mouthpiece segment 62 and replacing it with the second mouthpiece segment 64 is effective in adjusting the amount of aerosol delivered.

[0122] Furthermore, when the mouthpiece portion 16 has two or more segments 62, 64, it is preferable to wrap a sheet-like connecting filter wrapper (outer filter wrapper) 66 around these two or more segments 62, 64 to connect them. That is, the mouthpiece portion 16 has the connecting filter wrapper 66 in addition to these two or more segments 62, 64. The material of the filter wrapper 66 in the mouthpiece portion 16 is not particularly limited, and known materials can be used, and it may also contain a filler such as calcium carbonate. The filter wrapper 66 is made of the same material as the filter wrapper 74 of the first mouthpiece segment 62 and is fixed in the same manner as the filter wrapper 74 of the first mouthpiece segment 62. The filter wrapper 66 may be seamed by adjoining a hot-melt adhesive to a water-based adhesive, or may be seamed only with a water-based adhesive.

[0123] From the viewpoint of changes in the sensation of drawing and comfort in the mouth, the mouthpiece portion 16 may be configured such that the first mouthpiece segment 62 is located on the upstream side and the second mouthpiece segment 64 is located on the downstream side (towards the mouthpiece end Me).

[0124] The mouthpiece portion 16 may also be preferably formed as shown in Figure 3B. The mouthpiece portion 16 shown in Figure 3B includes a first mouthpiece segment 62a, a second mouthpiece segment 62b, a second mouthpiece segment 64, and a sheet-like filter wrapper 66.

[0125] The first-first mouthpiece segment 62a includes a filler 72a and a sheet-like wrapper 74a. For example, the filler 72a is a cellulose acetate tow filter. The wrapper 74a is similar to the wrapper 74 described above.

[0126] The first-second mouthpiece segment 62b includes a filler 72b and a sheet-like wrapper 74b. For example, the filler 72b is a paper filter that has been creped (crimped) and folded to form a generally cylindrical rod of an appropriate length. The wrapper 74b is similar to the wrapper 74 described above.

[0127] The mouthpiece section 16 has the 1-1 mouthpiece segment 62a positioned at the mouth end Me, the 1-2 mouthpiece segment 62b positioned upstream of that, and the second mouthpiece segment 64 positioned further upstream of that, and these 1-1 mouthpiece segment 62a, 1-2 mouthpiece segment 62b, and second mouthpiece segment 64 are wrapped in a filter wrapper 66.

[0128] In this way, the mouthpiece portion 16 may have any suitable configuration.

[0129] The outer peripheries of the mouthpiece portion 16 and the cooling portion 14 are covered with tipping paper 18. The leading end of the tipping paper 18 covers the rear end of the outer wrapper 54 on the outer periphery of the cooling portion 14. The rear end of the tipping paper 18 is aligned with the rear end of the mouthpiece portion 16. Therefore, the tipping paper 18 covers at least a portion of the outer wrapper 54 and the outer periphery of the mouthpiece portion 16.

[0130] The material of the tipping paper 18 is not particularly limited, and can be paper made from general plant fiber (pulp), a sheet made from polymer-based chemical fiber (polypropylene, polyethylene, nylon, etc.), a polymer-based sheet, metal foil, or a composite material combining these. For example, the tipping paper 18 may be made from a composite material in which a polymer-based sheet is bonded to a paper base material. Note that the tipping paper 18 referred to here refers to a sheet-like material that connects multiple segments in the flavor inhalation article 10, such as connecting the rod portion 12 and the mouthpiece portion 16.

[0131] Fig. 15 is a schematic diagram showing the state in which tipping paper 18 is wrapped around the outer periphery of the wrapper 54, cooling part 14, and mouthpiece part 16. Fig. 16 is a schematic diagram of the mouthpiece part 16 as viewed from the direction indicated by arrow XVI in Fig. 15.

[0132] 16 , the tipping paper 18 has a fourth seam 19 formed by placing an aqueous adhesive AG and a hot-melt adhesive HG adjacent to each other in the overlapping portion 19 a. At this time, in the fourth seam 19, the aqueous adhesive AG is placed on the circumferentially inner side of the tipping paper 18, and the hot-melt adhesive HG is placed on the circumferentially outer side of the tipping paper 18. That is, a glue or adhesive that melts when heated is used for the fourth seam 19. The hot-melt adhesive HG is first heated to its melting temperature and applied to the overlapping portion 19 a of the tipping paper 18. The overlapping portion 19 a is then cooled and hardened, for example, in a cooler that is kept below room temperature.

[0133] Alternatively, the fourth seam portion 19 may be formed only with the water-based adhesive AG, as in the wrapper 34 of the tip rod 22, the wrapper 44 of the tobacco rod 24, or the outer wrapper 54.

[0134] The basis weight of the tipping paper 18 is not particularly limited, but is preferably 10 gsm or more and 120 gsm or less. The air permeability of the tipping paper 18 is not particularly limited, but is preferably 0 CU or more and 30,000 CU or less. The air permeability is a value measured in accordance with ISO 2965:2009, and is the value at which the tipping paper 18 loses air per minute in an area of ​​1 cm when the differential pressure between both sides of the paper is 1 kPa.２ Flow rate of gas passing through (cm ３ 1 CU is expressed as cm under 1 kPa. ３ / (min cm ２ )

[0135] In addition to the pulp, the chip paper 18 may contain fillers, such as metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide and aluminum oxide, metal sulfates such as barium sulfate and calcium sulfate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum, etc. In particular, it is preferable that the chip paper 18 contains calcium carbonate from the viewpoints of improving whiteness and opacity and increasing the heating rate. Furthermore, these fillers may be used alone or in combination of two or more.

[0136] In addition to the pulp and filler, various auxiliary agents may be added to the chip paper 18. For example, the chip paper 18 may contain a water resistance improver to improve water resistance. Water resistance improvers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea-formaldehyde resin, melamine-formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more.

[0137] A coating agent may be added to at least one of the two surfaces, the front and back surfaces, of the tipping paper 18. There are no particular restrictions on the coating agent, but a coating agent that can form a film on the surface of the paper and reduce liquid permeability is preferred.

[0138] In order to increase the cooling effect by bringing room temperature external air into contact with high-temperature steam, the tipping paper 18 is provided with openings 18a for taking in air from the outside. The openings 18a in the tipping paper 18 are made together with the openings 14a in the cooling section 14. Therefore, the openings 18a in the tipping paper 18 communicate with the openings 14a in the cooling section 14.

[0139] It is preferable that the tipping paper 18 has an opening 18a directly above (at a position where they are vertically overlapping) the opening 14a provided in the cooling section 14. For this reason, after the tobacco rod 24, the cooling section 14, and the mouthpiece section 16 are wrapped and connected with the tipping paper 18, laser light may be irradiated from above the tipping paper 18 so as to penetrate the tipping paper 18 and the cooling section 14, thereby forming the openings 14a, 18a.

[0140] The number of openings 18a in the tipping paper 18 is not particularly limited. In this embodiment, multiple openings 18a are arranged at regular intervals in the circumferential direction of the tipping paper 18. Furthermore, the groups of openings 18a arranged in the circumferential direction of the tipping paper 18 may be formed in multiple stages along the axial direction of the tipping paper 18. By providing the openings 18a in the tipping paper 18, when the flavor inhalation article 10 is inhaled, low-temperature air flows from the outside into the openings 14a of the cooling unit 14 through the openings 18a in the tipping paper 18, thereby lowering the temperature of the volatile components and air flowing in from the tobacco rod 24. Furthermore, the vapor containing the aerosol-generating substrate and tobacco flavor components is condensed by being cooled by the low-temperature air introduced into the tipping paper 18 through the openings 18a. This promotes aerosol generation and enables control of the size of the aerosol particles. In addition, by applying a polymer coating such as polyvinyl alcohol or a polysaccharide coating such as pectin to the inner surface of the paper tube, the cooling effect can be increased by utilizing the heat of dissolution that accompanies the heat absorption and phase change of the coating. The airflow resistance of this cylindrical cooling segment is zero mmH ２ It becomes O.

[0141] Furthermore, the airflow resistance in the axial direction of each flavor inhalation article 10 configured as described above is not particularly limited, but from the viewpoint of ease of inhalation, it is usually 10 mmH ２ O or higher, usually 100 mmH ２It is preferable that the airflow resistance is 0 or less. The airflow resistance is measured in accordance with the ISO standard method (ISO6565:2015) using, for example, a filter airflow resistance measuring device manufactured by Cerulean Co., Ltd. The airflow resistance refers to the air pressure difference between the first end face and the second end face when air is flowed at a predetermined air flow rate (17.5 cc / min) from one end face (first end face) to the other end face (second end face) in a state where air does not pass through the side face of the flavor inhalation article 10. The unit is generally mmH ２ It is represented by O. It is known that the relationship between the airflow resistance and the flavor inhalation article 10 is proportional within a commonly used length range (5 mm to 200 mm), and if the length of the flavor inhalation article 10 is doubled, the airflow resistance also doubles.

[0142] The rod-shaped flavor inhalation article 10 preferably has a columnar shape satisfying a shape in which the aspect ratio (h / w) defined as follows is 1 or greater. Here, w is the width (outer diameter) of the tip De of the flavor inhalation article 10, h is the axial length of the flavor inhalation article 10, and it is preferable that h≧w. The cross-sectional shape of the flavor inhalation article 10 is not particularly limited and may be polygonal, rounded polygonal, circular, elliptical, or the like. The width w of the flavor inhalation article 10 is the diameter when the cross-sectional shape of the flavor inhalation article 10 is circular, the major axis when the cross-sectional shape is elliptical, and the diameter of the circumscribed circle or the major axis of the circumscribed ellipse when the cross-sectional shape is polygonal or rounded polygonal. The axial length h of the flavor inhalation article 10 is not particularly limited and is, for example, preferably typically 40 mm or more and typically 100 mm or less. The width w of the tip De of the flavor inhalation article 10 is not particularly limited and, for example, is preferably typically 5 mm or more and typically 10 mm or less. The ratio of the lengths of the cooling section 14 and the mouthpiece section 16 (cooling section 14:mouthpiece section 16) to the length of the flavor inhalation article 10 is not particularly limited, but is usually preferably 0.60 to 1.40:0.60 to 1.40 from the viewpoint of the amount of flavor delivered and an appropriate aerosol temperature. By setting the length ratio of the cooling section 14 and the mouthpiece section 16 within the above range, a balance is achieved between the cooling effect, the effect of suppressing loss of generated vapor and aerosol due to adhesion to the inner wall of the cooling section 14, and the function of adjusting the air volume and flavor of the mouthpiece section 16, thereby achieving a good flavor and flavor intensity.

[0143] The operation of the flavor inhalation system 200 according to this embodiment will be described below. The flavor inhalation article 10 is used at least several days after its manufacture, and appropriate peel strength is ensured at the seams of the wrappers 34, 44, 54, 74, 66 and the tipping paper 18. In other words, the flavor inhalation article 10 maintains its shape during normal use.

[0144] 1 , the tip rod 22 side of the flavor inhalation article 10 is inserted into the housing portion 311 of the device 300. At this time, the heated area A1 by the heater 320 covers the entire outer periphery of the tip rod 22 and the tobacco rod 24 of the flavor inhalation article 10. In addition, the non-heated area A2 by the heater 320 covers a part of the outer periphery of the cooling portion 14 of the flavor inhalation article 10. Note that a part of the heated area A1 may cover a part of the outer periphery of the cooling portion 14.

[0145] In this state, for example, based on the user pressing a switch (not shown) provided on the device 300, the detection of insertion of the distal end rod 22 of the flavor inhalation article 10 into the housing portion 311 of the device 300, or the detection of inhalation after insertion of the distal end rod 22 of the flavor inhalation article 10 into the housing portion 311 of the device 300, the control unit 370 uses power from the power source 380 to heat the heater 320 to a predetermined temperature. The heater 320 heats parts of the first seam portion 36, the second seam portion 46, and the third seam portion 56 in the heating region A1.

[0146] It is believed that when a region containing a hot-melt adhesive is heated to a predetermined temperature and the hot-melt adhesive melts, the smoking taste deteriorates compared to before the hot-melt adhesive melts. In the flavor inhalation article 10 according to the present embodiment, the first seam portion 36, the second seam portion 46, and the third seam portion 56 do not contain a hot-melt adhesive. Therefore, even if the first seam portion 36, the second seam portion 46, and the third seam portion 56 of the flavor inhalation article 10 are heated, deterioration of the smoking taste is suppressed.

[0147] The water-based adhesive AG is an adhesive whose hardening is accelerated by evaporation of water in the adhesive, thereby increasing bonding strength. Therefore, it is expected that the strength of each seam portion 36, 46, 56 will increase when heated to an appropriate temperature using the heater 320 of the device 300, and that the strength of the seam portions 36, 46, 56 will not decrease. In other words, when the seam portion 36 of the wrapper 34 is heated, the strength of the seam portion 36 is suppressed from decreasing. Similarly, when the seam portion 46 of the wrapper 44 is heated, the strength of the seam portion 46 is suppressed. Furthermore, when the seam portion 56 of the wrapper 54 is heated, the strength of the seam portion 56 is suppressed from decreasing.

[0148] Furthermore, the water-based adhesive AG of the first seam portion 36, the water-based adhesive AG of the second seam portion 46, and the water-based adhesive AG of the third seam portion 56 do not melt even when heated by the heater 320. This prevents the water-based adhesive AG from adhering to the housing portion 311 of the device 300. This reduces the frequency of maintenance of the housing portion 311 of the device 300 compared to when a hot-melt adhesive is used.

[0149] Therefore, according to the present embodiment, it is possible to provide a rod portion for a flavor inhalation article, a non-combustion type flavor inhalation article, and a non-combustion type flavor inhalation system that can suppress a decrease in strength of a seam portion when the seam portion of a wrapper of a tobacco rod or the like of a flavor inhalation article is heated. Furthermore, according to the present embodiment, it is possible to suppress adhesion of a molten adhesive, glue, or the like from the rod portion for the flavor inhalation article to a device having a heater.

[0150] In the present embodiment, an example has been described in which the first seam portion 36 has one region 36a, the second seam portion 46 has two regions 46a and 46b, and the third seam portion 56 has one region 56a. For example, the second seam portion 46 may have the overlapping portion 44a fixed in only one region with the water-based adhesive AG, as in the first seam portion 36 and the third seam portion 56. Conversely, the first seam portion 36 and the third seam portion 56 may have the overlapping portions 34a and 54a fixed in only one region with the water-based adhesive AG, as in the second seam portion 46.

[0151] In the present embodiment, the water-based adhesive AG is applied solidly to each of the regions 36 a, 46 a, 46 b, and 56 a. The water-based adhesive AG may also be applied discretely, as long as it is applied appropriately.

[0152] The present invention is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the spirit of the invention. Furthermore, the embodiments may be implemented in appropriate combinations, in which case the combined effects can be obtained. Furthermore, the above-described embodiments include various inventions, and various inventions can be extracted by combining selected elements from the disclosed elements. For example, if the problem can be solved and the desired effect can be obtained even if some elements are deleted from all elements shown in the embodiments, the configuration from which these elements are deleted can be extracted as an invention.

[0153] [Notes] [1] A non-combustion type flavor inhalation article comprising: a tip plug; a tobacco segment provided downstream of the tip plug; a cooling segment provided downstream of the tobacco segment; and a mouthpiece segment provided downstream of the cooling segment, wherein the tip plug comprises: a tip plug filler; a sheet-like first wrapper covering the outer periphery of the tip plug filler; and a first seam portion provided along the longitudinal direction of the flavor inhalation article at the overlapping portion between the ends of the first wrapper, the first seam portion having an area of ​​water-based adhesive and fixing the overlapping portion of the first wrapper, wherein a hot-melt adhesive that melts when heated is not used in the first seam portion.

[0154] [2] The non-combustion flavor inhalation article according to Appendix 1, wherein 70% or more of the overlapping portion between the ends of the first wrapper is fixed with the water-based adhesive.

[0155] [3] The non-burning flavor inhalation article according to Appendix 1 or Appendix 2, wherein the amount of the aqueous adhesive is 1 mg / 120 mm to 5 mg / 120 mm.

[0156] [4] The non-combustible flavor inhalation article according to any one of Supplementary Note 1 to Supplementary Note 3, wherein the tobacco segment comprises: a tobacco segment filler material containing tobacco components; a sheet-like second wrapper covering the outer periphery of the tobacco segment filler material; and a second seam portion provided along the longitudinal direction of the flavor inhalation article at the overlapping portion between the ends of the second wrapper, the second seam portion having an area of ​​water-based adhesive and fixing the overlapping portion of the second wrapper; wherein a hot-melt adhesive that melts when heated is not used in the second seam portion.

[0157] [5] A non-combustion flavor inhalation article according to Appendix 4, comprising: a sheet-like outer wrapper that covers the outer peripheries of the first wrapper and the second wrapper; and a third seam portion that is provided along the longitudinal direction of the flavor inhalation article at the overlapping portion between the ends of the outer wrappers, has an area made of a water-based adhesive, and fixes the overlapping portion of the outer wrappers, wherein the third seam portion does not use a hot-melt adhesive that melts when heated.

[0158] [6] The non-combustion flavor inhalation article according to Appendix 5, wherein the outer wrapper further covers an outer periphery of at least a part of the cooling segment.

[0159] [7] A non-combustion flavor inhalation article according to Appendix 5 or Appendix 6, comprising: a sheet-like tipping paper that covers at least a portion of the outer wrapper and the outer periphery of the mouthpiece segment; and a fourth seam portion that is provided along the longitudinal direction of the mouthpiece segment at the overlapping portion where the ends of the tipping paper overlap and fixes the overlapping portion of the tipping paper, wherein a hot-melt adhesive that melts when heated is used for the fourth seam portion.

[0160] [8] The non-combustion flavor inhalation article according to any one of Supplementary Notes 1 to 7, wherein the tip plug filler is formed of a sheet material.

[0161] [9] The non-burning flavor inhalation article according to any one of Appendix 1 to Appendix 8, wherein the aqueous adhesive contains one of ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), and starch paste, or a mixture of at least two of the EVA, the PVA, the CMC, and the starch paste.

[0162]

[10] A non-combustion type flavor inhalation system comprising: a non-combustion type flavor inhalation article according to any one of Supplementary Note 1 to Supplementary Note 9; a storage section that stores the tip plug and the outer side of the tobacco segment of the non-combustion type flavor inhalation article; and a heater that is provided in the storage section and heats at least the outer side of the tobacco segment among the outer sides of the tip plug and the tobacco segment.

[0163]

[11] The non-combustion type flavor inhalation system according to Appendix 10, wherein the tip plug filler includes an aerosol-generating substrate that generates an aerosol when heated by the heater.

[0164]

[12] The non-combustion flavor inhalation system according to claim 10 or 11, wherein the tobacco segment contains, as a filler, an aerosol-generating substrate that generates an aerosol when heated by the heater.

[0165] 10...non-combustion type flavor inhalation article, 12...rod portion, 14...cooling portion, 18...tipping paper, 22...tip rod, 24...tobacco rod, 32...filler, 34...inner plug wrapper, 34a...overlapping portion, 34b, 34c...end surface, 36...first seam portion, 36a...region, 38b, 38c...adhesiveless region, 42...filler, 44...wrapper, 44a...overlapping portion, 44b, 44c...end surface, 46...second seam portion, 46a...2-1 region, 46b...2-2 region, 48a, 48b, 48c...adhesiveless region, 54...outer wrapper, 54a...overlapping portion, 54b, 54c...end surface, 56...third seam portion, 56a...region, AG...water-based adhesive.

Claims

1. A non-combustion type flavor inhalation article, A tip plug, a tobacco segment provided downstream of the tip plug; a cooling segment located downstream of the tobacco segment; a mouthpiece segment provided downstream of the cooling segment; and The tip plug is a tip plug filler; a sheet-like first wrapper that covers the outer periphery of the tip plug filler; a first seam portion provided along the longitudinal direction of the flavor inhalation article in the overlapping portion between the ends of the first wrapper, the first seam portion having an area of ​​water-based adhesive and fixing the overlapping portion of the first wrapper; and a hot-melt adhesive that melts when heated is not used in the first seam portion; A non-combustible flavor inhalation product.

2. 70% or more of the overlapping portion between the ends of the first wrapper is fixed with the water-based adhesive; The non-burning flavor inhalation article according to claim 1 .

3. The amount of the water-based adhesive is 1 mg / 120 mm to 5 mg / 120 mm. The non-burning flavor inhalation article according to claim 1 .

4. The tobacco segment comprises: a tobacco segment filler material containing a tobacco component; a sheet-like second wrapper that covers the outer periphery of the tobacco segment filler; a second seam portion provided along the longitudinal direction of the flavor inhalation article in the overlapping portion between the ends of the second wrapper, the second seam portion having an area of ​​water-based adhesive and fixing the overlapping portion of the second wrapper; and The second seam portion does not use a hot melt adhesive that melts when heated. The non-burning flavor inhalation article according to any one of claims 1 to 3.

5. a sheet-like outer wrapper that covers the outer periphery of the first wrapper and the second wrapper; a third seam portion provided along the longitudinal direction of the flavor inhalation article in the overlapping portion between the ends of the outer wrapper, the third seam portion having an area of ​​water-based adhesive and fixing the overlapping portion of the outer wrapper; and a hot-melt adhesive that melts when heated is not used in the third seam portion; The non-burning flavor inhalation article according to claim 4.

6. The outer wrapper further surrounds at least a portion of the cooling segment. The non-burning flavor inhalation article according to claim 5 .

7. a sheet-like tipping paper covering at least a portion of the outer wrapper and the outer periphery of the mouthpiece segment; a fourth seam portion provided along the longitudinal direction of the mouthpiece segment at the overlapping portion of the ends of the tipping paper, and fixing the overlapping portion of the tipping paper; and The fourth seam uses a hot melt adhesive that melts when heated. The non-burning flavor inhalation article according to claim 5 .

8. The tip plug filler is formed of a sheet material. The non-burning flavor inhalation article according to any one of claims 1 to 3.

9. the water-based adhesive comprises one of ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), and starch paste, or a mixture of at least two of the EVA, the PVA, the CMC, and the starch paste; The non-burning flavor inhalation article according to any one of claims 1 to 3.

10. The non-burning flavor inhalation article according to any one of claims 1 to 3, a receiving portion that receives the tip plug and the outside of the tobacco segment of the non-combustion type flavor inhalation article; a heater provided in the storage section, for heating at least the outer surface of the tobacco segment among the outer surfaces of the tip plug and the tobacco segment; a device having A non-combustion flavor inhalation system comprising:

11. the tip plug filler includes an aerosol-generating substrate that generates an aerosol when heated by the heater; The non-burning flavor inhalation system according to claim 10.

12. The tobacco segment contains, as a filler material, an aerosol-generating substrate that generates an aerosol when heated by the heater. The non-burning flavor inhalation system according to claim 10.