Lever portion for flavor inhalation article, non-flammable flavor inhalation article, and non-flammable flavor inhalation system

Abstract

A stem portion for a flavor inhalation article includes: a filler material; a wrap formed in a sheet shape and covering an outer periphery of the filling material; and a seam portion for fixing an overlapping portion of the wrap. The seam portion is disposed at an overlapping portion between the end portions of the wrap in an axial direction of the rod portion, and includes a first region provided by a water-based adhesive and a second region provided by the water-based adhesive and disposed adjacent to the first region at a circumferential outer side of the overlapping portion of the wrap, and fixing an overlapping portion of the wrap. A hot melt adhesive that melts by heating is then not used at the seam portion.

Description

Technical Field

[0001] The present invention relates to a rod portion for a flavor inhalation article, a non-combustible flavor inhalation article, and a non-combustible flavor inhalation system. Background Technology

[0002] For example, WO 2017 / 104079 A1 describes the form of a seam portion at the overlap of the wrapping in a filter section. To secure the overlap, two adhesives are typically applied adjacent to each other at the overlap of the wrapping in the filter section: a hot melt adhesive and a water-based adhesive. The hot melt adhesive can cure rapidly when cooled in its molten form, while the water-based adhesive has superior bond strength (peel strength) compared to the hot melt adhesive.

[0003] For example, the seams of the wrapping in flavored inhalation products, such as tobacco sticks, can be secured using both hot-melt adhesives and water-based adhesives. The seams are then heated to a temperature equal to or higher than a suitable temperature (e.g., between 200°C and 400°C), at which point the hot-melt adhesive, with a melting point of, for example, about 120°C-200°C, may melt. In this case, the securing strength of the heated seams of the wrapping may decrease. Summary of the Invention

[0004] The purpose of this invention is to provide a rod portion for a flavored inhalation article, a non-combustible flavored inhalation article, and a non-combustible flavored inhalation system, which can suppress the reduction of the strength of the seam portion when the seam portion of the package (such as the seam portion of the tobacco rod portion of the flavored inhalation article) is heated.

[0005] According to one aspect of the invention, a rod portion for a flavor inhalation article comprises: a filling material; a wrapper formed in a sheet shape and covering the outer periphery of the filling material; and a seam portion for securing overlapping portions of the wrapper. The seam portion is disposed along the axial direction of the rod portion at the overlapping portion between end portions of the wrapper, including a first region provided by a water-based adhesive and a second region provided by a water-based adhesive and disposed circumferentially outward of the first region at the overlapping portion of the wrapper, and secures the overlapping portion of the wrapper. A hot-melt adhesive that melts upon heating is not used at the seam portion. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of a flavor inhalation system according to an embodiment.

[0007] Figure 2 schematically shown Figure 1 The internal structure of the flavor inhalation device in the flavor inhalation system shown.

[0008] Figure 3A yes Figure 1 The diagram shows a longitudinal cross-section of a flavor inhalation product.

[0009] Figure 3B yes Figure 3A Examples of variations of the mouthpiece portion of flavored inhalation products.

[0010] Figure 4 yes Figure 3A A schematic oblique view of the end member of the shown rod section.

[0011] Figure 5A From Figure 4 The arrow V in the diagram indicates the direction of the end member.

[0012] Figure 5B yes Figure 5A A variant example of the schematic diagram of the end member shown.

[0013] Figure 6 It shows from Figure 5A A schematic diagram of a portion of the enclosure of the end member, viewed in the direction indicated by the middle arrow VI.

[0014] Figure 7 This is a table showing the amount of water-based adhesive, the delivery speed during production, peel strength, and its effect on... Figures 4 to 6 Evaluation of the peel strength of the joint portion of the end member shown, etc.

[0015] Figure 8 The curve shows the relationship between the amount of water-based adhesive per unit length of the first joint portion and the peel strength.

[0016] Figure 9 yes Figure 3A A schematic perspective view of the tobacco rod portion shown.

[0017] Figure 10 From Figure 9 The diagram shows the tobacco stick as seen in the direction indicated by arrow X.

[0018] Figure 11 It shows from Figure 10 A schematic diagram showing a portion of the wrapping of a tobacco stick, as indicated by arrow XI.

[0019] Figure 12 It shows Figure 3A A schematic perspective view showing a portion of the rod section and cooling section covered by an outer covering.

[0020] Figure 13 From Figure 12 A schematic diagram showing the cooling section and part of the outer casing as indicated by arrow XIII.

[0021] Figure 14 It shows from Figure 13 A schematic diagram showing a portion of the outer casing as indicated by arrow XIV.

[0022] Figure 15 This is a first variant example of the schematic diagram, showing from Figure 5A The direction indicated by the middle arrow VI shows part of the enclosure of the end member.

[0023] Figure 16 This is a second variant example of the schematic diagram, showing from Figure 5A The direction indicated by the middle arrow VI shows part of the enclosure of the end member.

[0024] Figure 17 This is a third variant example of the schematic diagram, showing the transition from... Figure 5A The direction indicated by the middle arrow VI shows part of the enclosure of the end member.

[0025] Figure 18 This is a fourth variant example of the schematic diagram, showing the transition from... Figure 5A The direction indicated by the middle arrow VI shows part of the enclosure of the end member. Detailed Implementation

[0026] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0027] Figure 1 A schematic structure of a non-combustible flavor inhalation system 200 according to an embodiment is shown. Figure 1 As shown, the flavor inhalation system 200 includes: a non-combustible flavor inhalation article (hereinafter referred to as "flavor inhalation article") 10; and a non-combustible flavor inhalation device (hereinafter referred to as "device") 300 for heating the outer periphery of the tobacco rod (aerosol source) 24 of the flavor inhalation article 10, which will be described later.

[0028] Flavor Inhalation Device 300

[0029] Figure 2 The internal structure of the flavor inhalation device 300 according to an embodiment is schematically shown.

[0030] like Figure 1 and Figure 2As shown, the device 300 includes: a housing 310 (which is a shell for housing various components), a heater 320, a temperature sensor 350, an inhalation sensor 360, a control unit 370, and a power supply 380. The heater 320, temperature sensor 350, inhalation sensor 360, control unit 370, and power supply 380 are each disposed in the housing 310.

[0031] The housing 310 includes a receiving portion 311 for receiving the rod portion 12 of the flavor inhalation article 10 (described later) in such a way that the rod portion 12 can be inserted and removed from the open end (insertion port) 311a toward the closed end (bottom portion 313) inward. The receiving portion 311 has a circumferential wall (cylindrical tube) 312 and a bottom portion 313. The circumferential wall 312 and the bottom portion 313 of the receiving portion 311 form an internal space as a cylindrical receiving cavity 311b, thereby allowing the rod portion 12 of the flavor inhalation article 10 to be inserted and removed through the open end 311a. Note that the outer diameter of the receiving cavity 311b (i.e., the inner diameter of the circumferential 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 contained in the receiving cavity 311b of the receiving portion 311 in such a way that the flavor inhalation article can be inserted into and removed from the receiving cavity 311b through the opening end 311a of the device 300.

[0032] exist Figure 1 and Figure 2 In the attached drawing, reference numeral CL indicates the central axis of the receiving cavity 311b in the insertion / removal direction of the flavor inhalation article 10. Figure 1 In the example shown, the central axis of the flavor inhalation article 10 is preferably aligned with the central axis CL of the receiving cavity 311b of the device 300. The direction along this central axis CL will also be referred to hereinafter as the axial direction of the rod portion 12, the cooling portion (cooling section) 14, and the mouthpiece portion (mouthpiece section) 16 of the device 300 and the flavor inhalation article 10.

[0033] The heater 320 is disposed around or within the circumferential wall 312 of the receiving portion 311. The circumferential wall 312 and the bottom portion 313 of the receiving portion 311 are formed of a material that withstands the heat of the heater 320 and also transfers the heat of the heater 320 to the flavor inhalation article 10. For example, metal (such as stainless steel) or heat-resistant resin can be used as such a material in the receiving portion 311.

[0034] The heater 320 receives electrical power from the control unit 370 and generates heat to heat the flavor inhalation article 10 contained in the housing portion 311. For example, the heater 320 heats the flavor inhalation article 10 to a maximum temperature between 200°C and 400°C. Examples of maximum heating temperatures vary depending on the heater 320 used.

[0035] The space within the receiving cavity 311b that is heated to a predetermined temperature by means of heat from the heater 320 is defined as the heated region A1, and the space adjacent in the axial direction to the opening end 311a side of the heated region A1 is defined as the unheated region A2. The heated region A1 is formed on the bottom portion 313 side of the receiving cavity 311b.

[0036] There are no particular restrictions on the type of heater 320, and examples that can be used include heaters in which the heating wire (e.g., a wire material with high resistance, such as nickel-chromium alloy, iron-chromium alloy, or iron-nickel alloy) is laid on a steel material, or temperature-controlled heaters (e.g., ceramic heaters or sheathed heaters). It should be noted that a sheathed heater is a heater in which the heating wire is covered with filler and a metal tube together.

[0037] The heater 320 is disposed around or within the circumferential wall 312 in the heated region A1, and heats the heated region A1 from the outside. It should be noted that the heater 320 provides heating not only at the location in contact with the circumferential wall 312 of the receiving portion 311, but also at locations on the circumferential wall 312 and the bottom portion 313 of the receiving portion 311 away from the heater 320 by means of radiation or heat transfer. The heater 320 provides heating at a predetermined temperature or higher, for example, from an axial position including the bottom portion 313 of the receiving portion 311 up to, for example, a position B on the side of the opening end 311a of the circumferential wall 312.

[0038] Therefore, the heated region A1 is the area between position B and bottom portion 313 in the axial direction of the receiving portion 311. Position B is the boundary between the heated region A1 and the unheated region A2, and the unheated region A2 extends axially from boundary B to the opening end 311a of the receiving cavity 311b. It should be noted that boundary B can be defined as the boundary between the region reaching a specified temperature when actually heated by the heater 320 and the region below the specified temperature, or it can be defined as an estimated boundary by estimating the boundary between the region reaching a specified temperature and the region below the specified temperature when the heater 320 generates heat under predetermined conditions.

[0039] Figure 1The illustration shows the state in which the rod portion 12 of the flavored inhalation article 10 has been inserted into the receiving cavity 311b. In this state, the heater 320 generates heat upon receiving a power supply from the control unit 370 and heats the outer periphery of the tobacco rod 24 to a predetermined temperature.

[0040] In this embodiment, the boundary position between the region where the circumferential wall 312 reaches a specified temperature and the region where the circumferential wall 312 is below a specified temperature is estimated, and the plane orthogonal to the central axis CL passing through this boundary position is defined as boundary B, such as... Figure 2 The two-point chain line indicates that when the flavor inhalation article 10 has been inserted into the receiving cavity 311b, the tobacco rod 24 is positioned in the heated area A1, and at least a portion of the cooling section 14 is positioned in the unheated area A2.

[0041] It should be noted that when the flavor inhalation product 10 is in a predetermined state, such as when the flavor inhalation product 10 has been inserted into the receiving cavity 311b until the end of the flavor inhalation product De abuts against the bottom portion 313 of the receiving portion 311, the portion of the receiving cavity 311b in which the tobacco rod 24 is positioned can be defined as the heated area A1, and the portion in which the cooling portion 14 is positioned can be defined as the non-heated area A2.

[0042] When the user uses the device 300, the flavor inhalation article 10 is inserted into the receiving cavity 311b, and in this state, the heater 320 provided in the receiving part 311 generates heat to heat the tobacco filling material inside the flavor inhalation article 10, thereby generating an aerosol containing the tobacco components to be inhaled by the user.

[0043] Control unit 370 controls the operating state of device 300, such as controlling the heating of heater 320 based on temperature sensor 350 and / or suction sensor 360. Control unit 370 is, for example, a computer, which includes a processor (such as a central processing unit (CPU), digital signal processor (DSP), or field programmable gate array (FPGA)), a memory (such as random access memory (RAM) or read-only memory (ROM)), and an input / output unit.

[0044] Flavored inhalation products 10

[0045] An example of using the flavor inhalation article 10 as a non-combustible article will be described in this embodiment. The flavor inhalation article 10 according to this embodiment is formed in a generally cylindrical rod shape. The flavor inhalation article 10 has a generally constant diameter along its entire length in the longitudinal direction (hereinafter also referred to as the axial direction) from the mouthpiece end Me to the end end De. The overall length of the flavor inhalation article 10 is, for example, about 60 mm, and its outer diameter is, for example, about 7 mm.

[0046] like Figure 3A As shown, the flavored inhalation product 10 includes: a rod portion (rod) 12, a cooling portion 14 disposed downstream of the rod portion 12, a mouthpiece portion (filter portion) 16 disposed downstream of the cooling portion 14, and a sheet-like splice paper 18 connecting the above portions into a single piece.

[0047] The rod portion 12 is disposed at or near the portion heated by means of the device 300. The rod portion 12 includes: an end rod (end plug) 22 and a tobacco rod (tobacco segment, aerosol source) 24 adjacent downstream of the end rod 22. That is, the rod portion 12 includes: an end rod 22 disposed on the side of the non-combustible flavored inhalation article 10 opposite to the mouthpiece portion 16; and a tobacco rod 24 disposed between the end rod 22 and the cooling portion 14.

[0048] The axial length and outer diameter of the end rod 22 and the tobacco rod 24 can be appropriately modified to suit the non-combustible flavored inhalation article 10. For example, the axial length of the end rod 22 is preferably about 5 mm. For example, the axial length of the tobacco rod 24 is preferably about 15 mm.

[0049] It should be noted that when the rod portion 12 has been properly inserted into the receiving cavity 311b in the receiving portion 311 of the device 300, the tobacco rod 24 is preferably inside the heater 320 on its entire outer periphery, but a portion of the end rod 22 may also be inside the heater 320, or may not be inside the heater 320.

[0050] For example, the end member 22 functions as a cap and is formed as a so-called "end plug" to prevent the filling material 42 (described later) from falling off the end side of the tobacco rod 24. The end member 22 includes: the filling material 32 and a sheet-like inner plug wrap (segment wrap) 34 covering the outer periphery of the filling material 32.

[0051] The filler material 32 in the end member 22 is preferably a paper sheet material, a nonwoven sheet material, a resin sheet material, or a cellulose acetate tow. The filler material 32 in the end member 22 may include an aerosol generating matrix. There are no particular limitations on the type of aerosol generating matrix, and extracts and / or components from various types of natural products can be selected depending on the application. Examples of aerosol generating matrices include glycerol, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.

[0052] The filler material 32 in the end member 22 is formed into a generally cylindrical member of suitable length by wrinkling (curling) or folding, for example, paper sheet material, nonwoven sheet material, or resin sheet material. Paper sheet material that can be used by those skilled in the art as a paper filter can be used. For example, cellophane can also be used as the paper sheet material. In this embodiment, the width of the base paper of the filler material 32 is preferably, for example, 100 mm-250 mm, more preferably 150 mm-200 mm, and in one example, 180 mm, and its basis weight is typically 20 gsm or greater and typically 65 gsm or less. The basis weight of the base paper of the filler material 32 according to this embodiment is 35 gsm. The thickness of the filler material 32 is not limited, and from the perspective of rigidity, air permeability, and ease of adjustment during papermaking, the thickness is typically 10 µm or greater and typically 100 µm or less. In this embodiment, for example, the thickness of the filler material 32 is 88 µm.

[0053] The air permeability of the creased paper sheet material (raw paper) is between 0 CU (CORESTA units) and 30,000 CU. In this embodiment, the air permeability of the sheet material of the filler material 32 in the end member 22 is, for example, 3,000 CU. Note that the air permeability is measured as follows: The sheet is left to stand for 48 hours at room temperature of 22°C and 60% relative humidity. The sheet is then cut into 40 mm × 240 mm dimensions and measured using an air permeability measuring device (PPM1000M manufactured by Cerulean) under a pressure difference of 1 kPa with a 2 cm... 2 A circular measuring head was used to measure air permeability. The measurement environment was a room temperature of 22°C and a relative humidity of 60%. Air permeability was calculated as per 1 cm² under a pressure difference of 1 kPa. 2 Air infiltration flow rate (cm) within 1 minute 3 ).

[0054] The airflow resistance of the end member 22 is, for example, 0 mmH2O / mm-12 mmH2O / mm, and preferably 4 mmH2O / mm-8 mmH2O / mm.

[0055] The curling depth (wrinkling depth) of the filler material 32 is preferably in the range of 0.1 mm to 0.5 mm, and in one example it is 0.33 mm.

[0056] Examples of additives that can be added to filler material 32 include plasticizers (such as triacetin), adsorbents (such as activated charcoal), and flavoring agents (such as menthol). These additives are preferably dispersed substantially uniformly in filler material 32.

[0057] The internal insert wrapping (hereinafter referred to primarily as the "wrapping") 34 is a sheet material that wraps around the outer periphery of the filling material 32, and its composition is not particularly limited, and common wrappings can be used. For example, cellulose fiber paper can be used as the base paper used in the wrapping 34. More specifically, hemp or wood or mixtures thereof can be used as the base paper used in the wrapping 34. The basis weight of the base paper of the wrapping 34 is typically 20 gsm or greater and typically 100 gsm or less, more preferably 30 gsm-80 gsm, and even more preferably 40 gsm-60 gsm. The basis weight of the base paper of the wrapping 34 according to this embodiment is 43 gsm. The thickness of the wrapping 34 is not limited, and from the perspective of rigidity, air permeability and ease of adjustment during papermaking, the thickness is typically 10 µm or greater and typically 100 µm or less. In this embodiment, for example, the thickness of the wrapping 34 is 45 µm. The air permeability of the wrapping 34 is preferably 0.

[0058] For example, the shape of the wrapping 34 of the end member 22 can include a square or rectangular shape, such as an oblong shape. When the wrapping 34 is used to wrap the filler material 32, the length of one side of the wrapping 34 can be approximately 5 mm, which defines the length along the axial direction of the end member 22. The length of the other side of the wrapping 34 is the length that defines the diameter of the end member 22. The length of the other side of the wrapping 34 is approximately 24 mm. In this embodiment, the length of the other side of the wrapping 34 is 23.7 mm.

[0059] The wrapping material 34 may contain a filling material. The content of the filling material may be 10 wt% or more and less than 60 wt% relative to the total weight of the wrapping material 34. In the wrapping material 34, the content of the filling material is preferably 15 wt% to 45 wt% within a preferred basis weight range (25 gsm-45 gsm). Calcium carbonate, titanium dioxide, or kaolin can be used as filling materials, but calcium carbonate is preferred from the perspective of improving flavor and whiteness.

[0060] Various additives other than the base paper and filling materials can be added to the wrapping material 34. For example, water resistance improvers can be added 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. In addition, examples of sizing agents include rosin soap, alkyl ketone dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more. Paper strength enhancers can be added as additives, such as polyacrylamide, cationic starch, oxidized starch, carboxymethyl cellulose (CMC), polyamide epichlorohydrin resin, or polyvinyl alcohol. In particular, it is known to use a small amount of oxidized starch to improve air permeability. The wrapping material 34 can also be coated appropriately.

[0061] The coating agent can be added to at least one of the two surfaces of the wrapper 34, namely the front surface (outer surface) and the rear surface (inner circumferential surface). There are no particular limitations on the coating agent, but a coating agent that can form a film on the paper surface and reduce liquid permeability is preferred. Examples include: polysaccharides, such as alginate and its salts (e.g., sodium salts) and pectin; cellulose derivatives, such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, and nitrocellulose; and starch and its derivatives (e.g., ether derivatives, such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch; and ester derivatives, such as acetic acid starch, phosphate starch, and octenyl succinate starch).

[0062] A first seam portion 36 is formed on the wrapping material 34, which is used to secure the overlapping portion 34a by means of water-based adhesives 37a and 37b, which will be described later. The structure of the overlapping portion 34a of the wrapping material 34 for securing the end member 22 will be described below. The circumferential width of the overlapping portion 34a of the wrapping material 34 is 1 mm to 3 mm, and more preferably about 2.4 mm to 2.7 mm.

[0063] This will be achieved by using Figures 4 to 8 Describes the wrapping 34 of the end member 22. Figure 4 This is a schematic diagram showing the state in which the wrapping material 34 has been wrapped around the outer periphery of the filling material 32 in the end member 22. Figure 5A It is by Figure 4 The diagram is indicated by the arrow V in the image. Figure 6 It shows from Figure 5A The first joint portion 36 of the overlapping portion 34a of the wrapping 34 used to fix the end member 22 is shown in the direction indicated by the middle arrow VI.

[0064] like Figure 5AAs shown, the wrapping material 34 is wrapped around the outer periphery of the filler material 32, which is obtained, for example, by processing sheet material to form a generally cylindrical rod shape. Figure 5A and Figure 6 As shown, the first seam portion 36 for securing the overlapping portion 34a of the package 34 is provided on the package 34 by placing the end portions of a generally rectangular sheet material one above the other and bonding the end portions with water-based adhesives 37a and 37b. The first seam portion 36 is provided at the overlapping portion 34a between the end portions of the package 34 along the axial direction of the rod portion 12.

[0065] The fastening member used to secure the overlapping portion 34a at the first joint portion 36 does not use a hot-melt adhesive that melts upon heating to a suitable temperature (e.g., a temperature suitable for generating an aerosol in the tobacco stick 24). In other words, the fastening member used to secure the overlapping portion 34a at the first joint portion 36 uses a paste that prevents the fastening force generated by heating to a suitable temperature from decreasing to below the desired fastening force compared to before heating, or a paste or adhesive that prevents the fastening force generated by heating to a suitable temperature from decreasing to below the desired fastening force compared to before heating, i.e., only a water-based adhesive is used.

[0066] The first seam portion 36 includes a first region (1) 36a coated with a water-based adhesive 37a and a first region (2) 36b coated with a water-based adhesive 37b, the first regions being adjacent to and circumferentially outside the first region (1) 36a of the overlapping portion 34a of the wrapper 34. The first regions (1) 36a and (2) 36b each have a generally rectangular shape. For example, the first regions (1) 36a and (2) 36b are each 0.1 mm to 1 mm in the circumferential direction, and preferably 0.2 mm to 0.5 mm.

[0067] Water-based adhesives 37a and 37b are adhesives whose curing is promoted by the evaporation of moisture in the adhesive, thus increasing the adhesive strength. Water-based adhesives 37a and 37b comprise 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 said EVA, PVA, CMC, and starch paste. That is, water-based adhesives 37a and 37b comprise a water-based paste that cures due to the evaporation of moisture contained therein.

[0068] This embodiment describes an example of using ethylene-vinyl acetate copolymer resin (EVA) as a water-based adhesive 37a, 37b. It should be noted that the water-based adhesives 37a, 37b are composed of 54% EVA, of which 46% is water and the balance. Furthermore, in one example, the water-based adhesives 37a, 37b have a viscosity of 1100 MPa·s during the production of the end member 22. This also applies to, for example, water-based adhesives 47a, 47b, 57a, 57b (described later).

[0069] As described above, the water-based adhesives 37a and 37b are adhesives whose bonding strength increases due to the evaporation of moisture contained in the adhesive. Therefore, it is conceivable that the strength of the joint portion 36 will increase due to heating to a suitable temperature by the heater 320 of the device 300, but the strength of the joint portion 36 will not decrease. That is, the wrapping 34 prevents the strength of the joint portion 36 from decreasing when it is heated.

[0070] First regions (1) 36a and first regions (2) 36b are each disposed along the axial direction of the rod portion 12. According to this embodiment, water-based adhesives 37a and 37b are continuous along the axial direction of the rod portion 12 in the first regions (1) 36a and first regions (2) 36b. In this embodiment, the entire first region (1) 36a is preferably coated with water-based adhesive 37a, and the entire first region (2) 36b is preferably coated with water-based adhesive 37b.

[0071] A region 38a (adhesive-free region) without water-based adhesive is provided between the first region (1) 36a and the first region (2) 36b along the axial direction of the rod portion 12. The width of the adhesive-free region 38a between the first region (1) 36a and the first region (2) 36b in the circumferential direction intersecting with the axial direction of the rod portion 12 is preferably 0.1 mm to 2 mm.

[0072] Furthermore, a region 38b (adhesive-free region) without water-based adhesive is formed between the first region (2) 36b and the end face 34b on the circumferential outer side of the wrapping 34. The width of the adhesive-free region 38b in the circumferential direction intersecting the axial direction of the rod portion 12 (i.e., the distance between the end face 34b on the circumferential outer side of the first region (2) 36b and the overlapping portion 34a on the wrapping 34) is preferably greater than 0 mm and less than 2 mm. For example, this circumferential width is more preferably 0.1 mm to 1 mm.

[0073] Furthermore, a region 38c (adhesive-free region) without water-based adhesive is formed between the first region (1) 36a and the end face 34c on the opposite side of the wrapping 34. The width of the adhesive-free region 38c in the circumferential direction intersecting the axial direction of the rod portion 12 is preferably 0.1 mm to 1 mm. It should be noted that the region 38c is not required, and the water-based adhesive 37a can be applied to the end face 34c, or it can be applied beyond the end face 34c to the filler material 32. That is, the filler material 32 and the wrapping 34 can be bonded together by means of the water-based adhesive 37a.

[0074] For example, the sum of the amount of water-based adhesive 37a in the first region (1) 36a and the amount of water-based adhesive 37b in the first region (2) 36b is 1 mg / 120 mm to 5 mg / 120 mm. The amount of water-based adhesive 37a in the first region (1) 36a is preferably greater than the amount of water-based adhesive 37b in the first region (2) 36b, but these amounts can be the same.

[0075] Note that, for example, at least 70% of the overlapping portion 34a of the wrapper 34 is preferably secured by means of water-based adhesives 37a, 37b. This ensures adhesion in the appropriate area, thus maintaining stable peel strength.

[0076] Figure 7 The table shows the amount of water-based adhesive 37a in the first region (1) 36a, the amount of water-based adhesive 37b in the first region (2) 36b, the total amount of water-based adhesive in the first seam portion 36 for three samples, the feed rate during the production of the first seam portion 36 of the wrapping 34 of the end member 22, the peel strength of the first seam portion 36, and the evaluation of the peel strength of the first seam portion 36. Furthermore, Figure 7 The table shows the amount of water-based adhesive 37b in the first region (2) 36b, the total amount of water-based adhesive, the feed rate during production, the peel strength, and the evaluation of the peel strength for four samples in the first region (1) 36a that do not contain water-based adhesive 37a.

[0077] Figure 8 This is a graph showing the correlation between the peel strength (g) of the first seam portion 36 and the total amount (mg) of water-based adhesive per 120 mm after 24 hours from production. Figure 8 In the curve, the horizontal axis shows the amount (mg / 120 mm) of water-based adhesive 37b in the first region (2) 36b on the circumferential outer side, and the vertical axis shows the peel strength (g). Figure 8 The curve does not include the amount (mg / 120 mm) of water-based adhesive 37a in the first region (1) 36a on the circumferential inner side.

[0078] The peel strength of the first joint portion 36 was measured at a tensile speed of 100 mm / min using an EZ-SX (force sensor 5 N) measuring device manufactured by Shimadzu Corporation.

[0079] The package 34 here is the package before it is cut to a predetermined length (e.g., 5 mm), and is therefore long enough. In the case of producing the package 34 for the end member 22, the side opposite to the seam portion 36 is cut parallel to the axial direction of the member portion 12 (the side of the end member 22 that spans the central axis of the end member 22 opposite to the first seam portion 36). That is, the cutting direction of the package 34 is parallel to the axial direction of the first region (1) 36a and the first region (2) 36b.

[0080] By hand, the end of the first seam portion 36 of the cut package 34 is peeled back approximately 3 mm to create a pair of tab portions. These tab portions are created by peeling approximately 3 mm from an edge orthogonal to the end face 34b on the circumferentially outer side and the end face 34c on the circumferentially inner side of the package 34. The tab portions are then attached to the fixtures of a peel tester, and a T-shaped peel test is performed. That is, the overlapping portion 34a of the package 34 bonded to the water-based adhesives 37a and 37b is peeled along the longitudinal axis of the rod portion 12 at a predetermined rate to a displacement of 70 mm. For the measurement results, the median load generated from the start of the measurement (peeling start) up to the 70 mm displacement is obtained, and the average of five repeated measurements is taken in grams (g).

[0081] It should be noted that when the flavor inhalation article 10 is properly inserted into the receiving portion 311 of the device 300 and the outer periphery of the end rod 22 and the tobacco rod 24 is heated to a suitable temperature by means of the heater 320, the peel strength of the overlapping portion 34a should be maintained at 10 g or greater, but this is an empirical value. Figure 7 The table shown and Figure 8 As shown in the curve, the total amount of water-based adhesives 37a and 37b per 120 mm is preferably, for example, 1.1 mg or more.

[0082] The amount of water-based adhesive 37a in the first region (1) 36a is preferably greater than the amount of water-based adhesive 37b in the first region (2) 36b. For example, assuming that the amount of water-based adhesive 37b in the first region (2) 36b on the outer circumferential side is less than the amount of water-based adhesive 37a in the first region (1) 36a on the inner circumferential side, then the water-based adhesive 37b in the first region (2) 36b on the outer circumferential side will exhibit a faster drying ability than the water-based adhesive 37a in the first region (1) 36a on the inner circumferential side. Properly setting the total amount of water-based adhesives 37a and 37b in the circumferential direction intersecting the axial direction of the end member 22 while providing a difference in the amount of the two allows the overlapping portion 34a to be pre-fixed (temporarily fixed) in the desired state by the water-based adhesive 37b in the first region (2) 36b on the outer circumferential side. Furthermore, the water-based adhesive 37a in the first region (1) 36a dries more slowly than the water-based adhesive 37b in the first region (2) 36b, but exhibits greater resistance to peeling the first joint portion 36, thus fixing the first joint portion 36 in a state with the desired peel strength. Therefore, according to this embodiment, the first joint portion 36 is fixed by means of the water-based adhesive 37b in the first region (2) 36b, which exhibits a fixing force before the water-based adhesive 37a in the first region (1) 36a, and the water-based adhesive 37a in the first region (1) 36a, which exhibits a greater final fixing force than the water-based adhesive 37b in the first region (2) 36b, such that the peel strength is 10 g or greater.

[0083] The amount of water-based adhesive 37a in the first region (1) 36a is preferably substantially equal to the amount of water-based adhesive 37b in the first region (2) 36b. The first joint portion 36 is divided into water-based adhesive 37a in the first region (1) 36a and water-based adhesive 37b in the first region (2) 36b, while the total amount of water-based adhesives 37a and 37b in the joint portion 36 is set to an appropriate amount, thereby improving the ability of the joint portion 36 to dry faster than when the joint portion 36 is formed in a single region.

[0084] Therefore, the joint portion 36, which includes multiple regions 36a, 36b, allows the water-based adhesives 37a, 37b to dry more quickly, enabling the appropriate bond strength to be achieved more quickly at the joint portion 36.

[0085] like Figure 8As shown, the peel strength of the first joint portion 36 increases with the increase of the total amount of water-based adhesives 37a and 37b. However, there is no significant difference in peel strength between the example with a total amount of water-based adhesives 37a and 37b of 2.4 mg / 120 mm and the example with a total amount of water-based adhesives 37a and 37b of 4.8 mg / 120 mm. Therefore, the total amount of water-based adhesives 37a and 37b in the first joint portion 36 should therefore be estimated to be, for example, about 2.4 mg / 120 mm. For example, if the total amount of water-based adhesives 37a and 37b is too large, water-based adhesive 37a may seep into the interior of the end face 34c, or water-based adhesive 37b may seep circumferentially out of the exterior of the end face 34b. Therefore, the first joint portion 36 of the wrapping 34 of the end member 22 is produced when the amount of water-based adhesives 37a and 37b is adjusted to give the first joint portion 36 a suitable peel strength.

[0086] In addition, such as Figure 5B As shown, the filler material 32 is also preferably fixed to the inner circumferential surface of the wrapping material 34 by means of the same adhesive 39 as the water-based adhesives 37a, 37b. The bonding position of the adhesive 39 can be suitably set. In this embodiment, the bonding position of the adhesive 39 is set on the side opposite to the overlapping portion 34a.

[0087] The tobacco stick 24 includes a filler material (tobacco filler material) 42 that serves as an aerosol-generating matrix and a sheet-like wrapping material (wrapping paper) 44.

[0088] The filling material 42 can be tobacco sheets and / or shredded tobacco. There are no particular limitations on the material of the shredded tobacco included in the filling material 42, and well-known materials such as leaves or midribs can be used. Alternatively, tobacco dust can be formed by grinding dried tobacco leaves to an average particle size of 20 µm to 200 µm, and then the homogenized material can be processed into sheets (hereinafter also referred to as "homogenized sheets"), which are then shredded. Alternatively, the filling material 42 can also be a so-called "straw" material, obtained by cutting homogenized sheets with a length similar to the length of the tobacco stem 24 in the longitudinal direction and approximately horizontally. The width of the shredded tobacco is preferably 0.5 mm to 2.0 mm for filling the tobacco stem 24. Furthermore, there are no particular limitations on the content of dried tobacco leaves in the filling material 42 included in the tobacco stem 24, and contents of 200 mg / (tobacco stem) or greater and 800 mg / (tobacco stem) or less can be listed.

[0089] For tobacco leaves used in the production of shredded tobacco and homogenized sheets, various types of tobacco can be used. Examples include yellow tobacco, burley tobacco, oriental tobacco or natural type, as well as other red and yellow tobacco varieties, and their blends. Suitable blends of the above varieties can be used in the form of mixtures to achieve the desired flavor.

[0090] The moisture content of the tobacco filling material 42 relative to its total amount can be 10 wt%-15 wt%. This moisture content prevents wrapping stains on the wrapper 44 after the filling material 42 has been wrapped, and improves rolling suitability during the production of the tobacco stick 24. There are no particular limitations on the size or method of preparing the shredded tobacco included in the tobacco filling material 42. For example, material obtained by shredding dried tobacco leaves to a width of 0.5 mm-2.0 mm can be used. Furthermore, when using material powder in homogenized sheets, dried tobacco leaves can be ground to an average particle size of approximately 20 µm-200 µm, then homogenized and formed into sheets, which can then be shredded to a width of 0.5 mm-2.0 mm for use.

[0091] The tobacco filling material 42 may also include an aerosol-generating matrix for generating aerosols. There are no particular limitations on the type of aerosol-generating matrix, and extracts and / or components from various types of natural products may be selected depending on the application. Examples of aerosol-generating matrices include glycerol, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. There are no particular limitations on the amount of aerosol-generating matrix contained in the tobacco filling material 42, and from the perspective of generating sufficient aerosols and imparting a good flavor, this amount is typically 5 wt% or more and typically 50 wt% or less relative to the total amount of the tobacco filling material 42.

[0092] Tobacco filling material 42 may contain flavoring materials. There are no particular restrictions on the type of flavoring materials, and from the perspective of imparting a pleasant flavor, the following can be listed: p-methoxyacetophenone, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, pentanol, amyl butyrate, trans-anisole, star anise oil, apple juice, Peruvian gum oil, beeswax absolute, benzaldehyde, benzoin extract, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob extract. Oils, β-carotene, carrot juice, L-carvone, β-caryophyllene, cinnamon bark oil, cypress oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronellol, DL-citronellol, sage extract, cocoa, coffee, condensed cod oil, coriander oil, cuminaldehyde, artemisia oil, δ-decanoic acid lactone, γ-decanoic acid lactone, decanoic acid, dill oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3 7-Dimethyl-6-octenic 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 acetopropionate, 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 Azine, 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek oil, broom oil, gentian root extract, geraniol, geraniol acetate, grape juice, guaiacol, guava extract, γ-heptanolactone, γ-caprolactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexanol, hexyl phenylacetate, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-Trimethyl-2-cyclohexen-1-one, 4-(p-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute oil, β-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyrate, isobutyl phenylacetate, jasmine absolute oil, kola nut extract, rockrose oil, terpene-free lemon oil, licorice extract, linalool, linalyl acetate, Angelica sinensis root oil, maltol, maple syrup, menthol, menthone, L-menthol acetate, p-methoxybenzaldehyde, methyl-2-pyrrolidone, Methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute oil, molasses, myristic acid, nerol, nerolidol, γ-nonalactone, myristole oil, δ-octanolide, octanal, caprylic acid, neroli oil, orange oil, orris root oil, palmitic acid, ω-pentadecanolactone, peppermint oil, Paraguayan orange leaf oil, phenethyl alcohol, phenylacetic acid, phenylacetic acid, piperaldehyde, plum extract, propenyl ethyl guaiacol, propionate, 3-propyl indolephthalide, plum Juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax essential oil, marigold oil, tea distillate, α-terpinene ester, terpinene acetate ester, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxehera (8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tetranone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)- 2-Buten-4-one, 2,6,6-trimethyl-2-cyclohexen-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl)-2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecyl lactone, γ-valerol lactone, vanilla extract, vanillin, veratral, violet leaf essential oil, N-ethyl-p-menthane-3-carbamate (WS-3), and ethyl-2-(p-menthane-3-carbamate)acetate (WS-5), with menthol being particularly preferred. These flavoring ingredients can be used alone, or in combination of two or more.

[0093] There is no particular limitation on the amount of flavoring material contained in the tobacco filling material 42, and preferably, from the point of view of imparting good flavor, the amount is usually 10,000 ppm or more and also usually 70,000 ppm or less.

[0094] The wrapping material (wrapping paper) 44 is a sheet material used to wrap the tobacco filling material 42. There are no particular restrictions on the configuration of the wrapping material 44, and a general configuration can be used. The wrapping material 44 of the tobacco stick 24 can be the same base paper as the base paper used for the wrapping material 34 of the end stick 22.

[0095] Note that in this embodiment, the length along the axial direction of the tobacco stick 24 is, for example, 15 mm. The length of one side of the wrapper 44 can be approximately 15 mm, which defines the length along the axial direction of the tobacco stick 24. The length of the other side of the wrapper 44 is the length defining the diameter of the tobacco stick 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.

[0096] A second seam portion 46 is formed on the package 44, which is used to secure the overlapping portion 44a by means of a water-based adhesive 47a, 47b, which will be described later. Figures 9 to 11 The structure of the wrapping 44 used to secure the tobacco stick 24 is described. The circumferential width of the overlapping portion 44a of the wrapping 44 is 1 mm to 3 mm, and more preferably about 2.4 mm to 2.7 mm.

[0097] Figure 9 This is a schematic diagram showing the state of the wrapper 44 already wrapped around the outer periphery of the filling material 42 in the tobacco stick 24. Figure 10 It is by Figure 9 The diagram is indicated by the arrow X in the image. Figure 11 It shows from Figure 10 The diagram shows the second seam portion 46 of the overlapping portion 44a of the wrapping material 44 used to secure the tobacco stick 24, viewed in the direction indicated by the middle arrow XI.

[0098] like Figure 9 and Figure 10 As shown, the wrapping material 44 is wrapped around the outer periphery of the filler material 42, which is formed into a generally cylindrical rod shape. A second seam portion 46 for securing the overlapping portion 44a of the wrapping material 44 is attached to the wrapping material 44 by placing the end portions of a generally rectangular sheet material one above the other and bonding the end portions together using water-based adhesives 47a, 47b. Similar to the first seam portion 36, a water-based adhesive is preferably used at the second seam portion 46, and hot-melt adhesives that melt upon heating are not used.

[0099] like Figures 9 to 11As shown, the second seam portion 46 is disposed along the axial direction of the rod portion 12 at the overlapping portion 44a between the end portions of the wrapping 44. The second seam portion 46 includes a second region (1) 46a coated with water-based adhesive 47a and a second region (2) 46b coated with water-based adhesive 47b, the second region being disposed adjacent to and circumferentially outward of the second region (1) 46a of the overlapping portion 44a of the wrapping 44. Therefore, the seam portion 46 including multiple regions 46a, 46b allows the water-based adhesives 47a, 47b to dry more quickly, so that a suitable bond strength can be achieved more quickly at the seam portion 46. The second region (1) 46a and the second region (2) 46b each have a generally rectangular shape.

[0100] Similar to water-based adhesives 37a and 37b, water-based adhesives 47a and 47b comprise one of the following: ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), and starch paste, or a mixture of at least two of said EVA, PVA, CMC, and starch paste. As described above, water-based adhesives 47a and 47b are adhesives whose adhesive strength increases due to the evaporation of moisture contained in the adhesive. Therefore, it is conceivable that the strength of the seam portion 46 will increase due to heating to a suitable temperature by the heater 320 of the device 300, but the strength of the seam portion 46 will not decrease. That is, the wrapping 44 prevents a decrease in the strength of the seam portion 46 when it is heated.

[0101] The second region (1) 46a and the second region (2) 46b are each disposed along the axial direction of the rod portion 12. According to this embodiment, the water-based adhesives 47a and 47b are continuous along the axial direction of the rod portion 12 in the second region (1) 46a and the second region (2) 46b.

[0102] A region 48a (adhesive-free region) without water-based adhesive is provided between the second region (1) 46a and the second region (2) 46b along the axial direction of the rod portion 12. The width of the adhesive-free region 48a between the second region (1) 46a and the second region (2) 46b in the circumferential direction intersecting with the axial direction of the rod portion 12 is preferably 0.1 mm to 2 mm.

[0103] Furthermore, a region 48b without water-based adhesive (adhesive-free region) is formed between the second region (2) 46b and the end face 44b of the wrapping 44. The width of the adhesive-free region 48b in the circumferential direction intersecting the axial direction of the rod portion 12 is preferably 0.1 mm to 2 mm.

[0104] Furthermore, a region 48c (adhesive-free region) without water-based adhesive is formed between the second region (1) 46a and the end face 44c on the opposite side of the wrapping 44. The width of the adhesive-free region 48c in the circumferential direction intersecting the axial direction of the rod portion 12 is preferably 0.1 mm to 1 mm. It should be noted that the region 48c is not required, and the water-based adhesive 47a can be applied to the end face 44c, or can be applied beyond the end face 44c to the filler material 42. That is, the filler material 42 and the wrapping 44 can be bonded together by means of the water-based adhesive 47a.

[0105] For example, the sum of the amount of water-based adhesive 47a in the second region (1) 46a and the amount of water-based adhesive 47b in the second region (2) 46b is 1 mg / 120 mm to 5 mg / 120 mm. The amount of water-based adhesive 47a in the second region (1) 46a is preferably greater than the amount of water-based adhesive 47b in the second region (2) 46b, but these amounts can be the same.

[0106] Therefore, similar to the first seam portion 36, even if the second seam portion 46 is heated to a suitable temperature for the aerosol generated by the filling material 42 in the tobacco rod 24, the fixed state of the second seam portion 46 at the overlapping portion 44a can still be maintained.

[0107] There are no particular limitations on the cooling section (paper tube) 14, as long as it has the function of cooling the vapor generated by heating the tobacco rod 24, and examples include cardboard (sheet material) processed into a cylindrical shape. In this case, the interior of the cylinder is a cavity, and the vapor containing the aerosol generating matrix and tobacco flavor components comes into contact with the air in the cavity and is cooled.

[0108] According to one design, the cooling section 14 can be a paper tube obtained by processing one or more sheets of bonded paper into a cylindrical shape. Furthermore, openings 14a for drawing in external air are provided in the cooling section 14 to allow room-temperature external air to contact the high-temperature vapors, thereby enhancing the cooling effect. There is no particular limitation on the number of openings 14a in the cooling section 14. In this embodiment, a plurality of openings 14a are arranged at fixed intervals in the circumferential direction of the cooling section 14. Additionally, multiple sets of openings 14a arranged in multiple stages along the axial direction of the cooling section 14 can be formed in the circumferential direction of the cooling section 14. Providing openings 14a in the cooling section 14 allows low-temperature air to flow into the cooling section 14 from the outside when the user inhales the flavor inhalation product 10, and can reduce the temperature of the air and volatile components flowing in from the tobacco stick 24. Furthermore, the vapors containing the aerosol-generating matrix and tobacco flavor components condense due to being cooled by the low-temperature air introduced into the cooling section 14 through the openings 14a. In this way, aerosol generation is promoted, while the size of the aerosol particles can also be controlled. It should be noted that the cooling effect can also be enhanced by coating the inner surface of the paper tube with a polymer coating (such as polyvinyl alcohol) or a polysaccharide coating (such as pectin), thereby utilizing the heat absorption of the coating or the heat of solution associated with the phase change. The airflow resistance of the cylindrical cooling section is 0 mmH2O.

[0109] When the cooling section 14 is filled with sheets or the like for cooling air and volatile components flowing into the cooling section 14 from the tobacco stick 24, there is no particular limitation on the total surface area of ​​the cooling section 14, and for example, the total surface area can be 300 mm². 2 / mm-1000 mm 2 / mm. This surface area is the surface area per unit length (mm) of the cooling section 14 along the airflow direction. The total surface area of ​​the cooling section 14 is preferably 400 mm². 2 / mm or greater, and preferably 600 mm 2 / mm or smaller.

[0110] The cooling portion 14 preferably has a structure with a large surface area on its inner circumferential surface. Accordingly, in a preferred embodiment, the cooling portion 14 can be formed from a sheet of thin material that is wrinkled and then slotted, gathered, and folded to form channels. The more wrinkles or slots within a given volume of the element, the larger the total surface area of ​​the cooling portion 14. There is no particular limitation on the thickness of the material constituting the cooling portion 14, and it can be, for example, from 5 µm to 500 µm.

[0111] From the perspective of reducing environmental burden, it is also desirable to use paper as the material for the cooling sheet component of cooling section 14. The paper used as the cooling sheet material preferably has a basis weight of 30-100 gsm and a thickness of 20-100 µm. From the perspective of reducing the removal of flavor source components and aerosol-generating matrix components in cooling section 14, the paper used as the cooling sheet material preferably has low permeability, and permeability of 10 CU or less is preferred. The cooling effect can also be enhanced by coating the paper used as the cooling sheet material with a polymer coating (such as polyvinyl alcohol) or a polysaccharide coating (such as pectin), thereby utilizing the heat absorption of the coating or the heat of solution associated with phase change.

[0112] The opening 14a in the cooling section 14 should preferably be arranged at a position at least 1 mm from the boundary between the cooling section 14 and the nozzle section 16, and more preferably at a position at least 2 mm from that boundary. This not only improves the cooling capacity of the cooling section 14, but also suppresses the stagnation of components caused by heat generation inside the cooling section 14, and increases the delivery amount of these components.

[0113] There is no particular limitation on the length of the cooling section 14 in the axial direction (airflow direction), but preferably, it is typically 10 mm or more and typically 40 mm or less. The axial length of the cooling section 14 is particularly preferably 20 mm. Sufficient cooling effect and a pleasant flavor can be ensured by setting the axial length of the cooling section 14 to not less than the aforementioned lower limit. Furthermore, by setting the axial length of the cooling section 14 to not greater than the aforementioned upper limit, losses due to the adhesion of vapors and aerosols generated during use to the inner wall of the cooling section 14 can be suppressed.

[0114] The structure for securing the cooling section 14 is preferably the same as the structure for securing the wrapping 34 for securing the end member 22 and the structure for securing the wrapping 44 for securing the tobacco stem 24. The securing member for securing the overlapping portion at the seam of the cooling section 14 does not use a hot-melt adhesive that melts upon heating to a suitable temperature (e.g., a temperature suitable for generating an aerosol in the tobacco stem 24). In other words, the securing member for securing the overlapping portion at the seam of the cooling section 14 uses a paste that prevents the securing force generated by heating to a suitable temperature from decreasing to below the desired securing force compared to before heating, or a paste or adhesive that prevents the securing force generated by heating to a suitable temperature from decreasing to below the desired securing force compared to before heating; i.e., only a water-based adhesive is used.

[0115] Regarding its relationship to the device 300, it should be noted that when the cooling section 14 is located in the area of ​​the unheated region A2, the water-based adhesive and the hot-melt adhesive can be disposed together at the seam of the cooling section 14. In this case, the water-based adhesive that can be used in the wrappings 34, 44 is preferably disposed on the circumferential inner side, and the hot-melt adhesive is preferably disposed on the circumferential outer side.

[0116] The wrapping 34 of the end member 22, the wrapping 44 of the tobacco stem 24, and the outer periphery of the cooling section 14 are secured by a sheet-like outer wrapping 54, which connects the end member 22, the tobacco stem 24, and the cooling section 14. The outer wrapping 54 covers the outer periphery of the wrapping 34 and the wrapping 44. The end of the outer wrapping 54 is preferably aligned with the end of the end member 22. The rear end of the outer wrapping 54 is positioned appropriately between the end and the rear end of the cooling section 14.

[0117] will rely on Figures 12 to 14 The structure for securing the outer covering 54 is described. The circumferential width of the overlapping portion 54a of the covering 54 is 1 mm to 3 mm, and more preferably about 2.4 mm to 2.7 mm.

[0118] Here, Figure 12 This is a schematic diagram showing the state in which the wrapping material 54 has been wrapped around the outer periphery of the end rod 22, the tobacco rod 24 and the cooling section 14. Figure 13 From Figure 12 A schematic diagram of the rod section 12 and the cooling section 14 as shown in the direction indicated by the middle arrow XII. Figure 14 It shows from Figure 13 A schematic diagram showing a portion of the outer casing as indicated by arrow XIV.

[0119] like Figure 12 and Figure 13 As shown, the wrapping material 54 wraps around the outer periphery of the end rod 22, the tobacco rod 24 and the cooling portion 14, which are formed in the shape of substantially columnar rods having approximately the same diameter, wherein the tobacco rod 24 is adjacent to the downstream side of the end rod 22 and the cooling portion 14 is adjacent to the downstream side of the tobacco rod 24.

[0120] like Figure 13 and Figure 14 As shown, the third seam portion 56 for securing the overlapping portion 54a of the package 54 is provided on the package 54 by placing the end portions of a generally rectangular sheet material one above the other and bonding the end portions with water-based adhesives 57a and 57b. No hot-melt adhesive that melts upon heating is used at the third seam portion 56.

[0121] The third joint portion 56 is disposed along the axial direction of the rod portion 12 at the overlapping portion 54a between the end portions of the wrapping 54. The third joint portion 56 includes a third region (1) 56a coated with water-based adhesive 57a and a third region (2) 56b coated with water-based adhesive 57b, the third region being disposed adjacent to and circumferentially outward of the third region (1) 56a of the overlapping portion 54a of the wrapping 54. Therefore, the joint portion 56 including multiple regions 56a, 56b allows the water-based adhesives 57a, 57b to dry more quickly, so that a suitable bond strength can be achieved more quickly at the joint portion 56. The third region (1) 56a and the third region (2) 56b each have a generally rectangular shape.

[0122] The water-based adhesives 57a and 57b are one of the following: ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), and starch paste, or a mixture of at least two of said EVA, PVA, CMC, and starch paste. As described above, the water-based adhesives 57a and 57b are adhesives whose adhesive strength increases due to the evaporation of moisture contained in the adhesive. Therefore, it is conceivable that the strength of the seam portion 56 will increase due to heating to a suitable temperature by the heater 320 of the device 300, but the strength of the seam portion 56 will not decrease. That is, the wrapping 54 prevents the strength of the seam portion 56 from decreasing when heated.

[0123] The third region (1) 56a and the third region (2) 56b are each disposed along the axial direction of the rod portion 12. According to this embodiment, the water-based adhesives 57a and 57b are continuous along the axial direction of the rod portion 12 in the third region (1) 56a and the third region (2) 56b.

[0124] A region 58a (adhesive-free region) without water-based adhesive is provided between the third region (1) 56a and the third region (2) 56b along the axial direction of the rod portion 12. The width of the adhesive-free region 58a between the third region (1) 56a and the third region (2) 56b in the circumferential direction intersecting with the axial direction of the rod portion 12 is preferably 0.1 mm to 2 mm.

[0125] Furthermore, a region 58b (adhesive-free region) without water-based adhesive is formed between the third region (2) 56b and the end face 54b of the package 54. The width of the adhesive-free region 58b in the circumferential direction intersecting the axial direction of the rod portion 12 is preferably 0.1 mm to 2 mm.

[0126] Furthermore, on the end face 54c on the opposite side of the package 54, between the third region (1) 56a and the end face 54c, the outer periphery of the end rod 22, the tobacco rod 24, and the cooling portion 14 is coated with a water-based adhesive 57a. That is, the end rod 22, the tobacco rod 24, and the cooling portion 14 are bonded to the package 54 by the water-based adhesive 57a.

[0127] For example, the sum of the amount of water-based adhesive 57a in the third region (1) 56a and the amount of water-based adhesive 57b in the third region (2) 56b is 1 mg / 120 mm to 5 mg / 120 mm. The amount of water-based adhesive 57a in the third region (1) 56a is preferably greater than the amount of water-based adhesive 57b in the third region (2) 56b, but these amounts can be the same.

[0128] Therefore, similar to the first seam portion 36 and the second seam portion 46, even if the third seam portion 56 is heated to a suitable temperature for the aerosol generated by the filling material 42 in the tobacco rod 24, the fixed state of the third seam portion 56 at the overlapping portion 54a can still be maintained.

[0129] There are no particular restrictions on the configuration of the nozzle part 16, as long as it has the general function of a filter.

[0130] like Figure 3A As shown, the suction nozzle portion 16 in this embodiment includes a first suction nozzle segment 62 and a second suction nozzle segment 64. Here, the first suction nozzle segment 62 includes a suction nozzle end Me, and the second suction nozzle segment 64 is adjacent to the end side of the first suction nozzle segment 62. The rear end of the cooling portion 14 is adjacent to the end side of the second suction nozzle segment 62.

[0131] Examples of general functions of the mouthpiece 16 include adjusting the amount of air mixed when inhaling aerosols, diluting the flavor, and reducing nicotine and tar, but not all of these functions need to be provided. Preventing the filling material 42 of the tobacco stick 24 from falling out when controlling the filter function is another important function in electrically heated tobacco products, which produce fewer components and tend to have a lower tobacco filling material content than paper-wrapped tobacco products.

[0132] The transverse cross-section of the nozzle portion 16 is approximately circular. The diameter of the nozzle portion 16 can vary appropriately depending on the product dimensions, but is preferably comparable to the diameter of the rod portion 12. It should be noted that when the cross-section is non-circular, the aforementioned diameter is assumed to be for a circle having an area equal to the area of ​​the relevant cross-section, and the diameter of that circle is applied. The axial length of the nozzle portion 16 can vary appropriately depending on the product dimensions, but is generally preferably 5 mm to 35 mm. The shape and size of the nozzle portion 16 can be appropriately adjusted so that the shape and size of the nozzle portion 16 fall within the above range.

[0133] There is no particular limitation on the airflow resistance per 120 mm axial length of the suction portion 16, but it is generally preferred to be 40 mmH2O-300 mmH2O. It is known that the relationship between the airflow resistance of the suction portion 16 and the length of the suction portion 16 is proportional within a normal length range (5-200 mm), and the airflow resistance of the suction portion 16 also doubles when the length is doubled.

[0134] The first suction nozzle section 62 includes: a cellulose acetate tow filter 72 formed in a columnar shape as a filling material, and a sheet filter wrapping (wrapping) 74 wrapped around the cellulose acetate tow filter 72.

[0135] Furthermore, there are no particular limitations on the density of the cellulose acetate tow filter 72 in the suction nozzle portion 16, but it is generally preferred to be 0.10 g / cm³. 3 -0.25 g / cm 3 .

[0136] There are no particular limitations on the fineness of the individual yarns and the total fineness of the cellulose acetate tow filter 72. When the suction nozzle portion 16 has a circumference of 22 mm, the fineness of the individual yarns is preferably 5-20 g / 9000 m, and the total fineness is preferably 12,000-30,000 g / 9000 m. When the suction nozzle portion 16 is formed by filling it with the cellulose acetate tow filter 72, triacetin can be added at 5-10 wt% relative to the weight of the cellulose acetate tow filter 72 to increase the filter stiffness.

[0137] Alternatively, the first suction nozzle section 62 can employ an alternative filter, such as a paper filter filled with pulp sheets as the filter medium, instead of using the cellulose acetate tow filter 72. The paper filter used can be made of the same material as the filling material 32 in the end member 22.

[0138] Flavoring materials can be added to the cellulose acetate tow filter 72 in the mouthpiece portion 16. Compared to adding flavoring materials to the tobacco filling material 42 constituting the tobacco stem 24, adding flavoring materials to the cellulose acetate tow filter 72 can increase the amount of flavoring material delivered during use. The degree of increase in the amount of flavor components delivered can be further increased depending on the location of the opening 14a provided in the cooling portion 14. There are no particular limitations on the method of adding flavoring materials to the cellulose acetate tow filter 72, and the flavoring materials should be added in a manner that is substantially uniformly dispersed within the cellulose acetate tow filter 72 to which the flavoring materials are added. Examples of the amount of flavoring materials added include 10-100 vol% of the flavoring material added to the cellulose acetate tow filter 72. There are no particular limitations on the type of flavoring material, but the same flavoring material contained in the tobacco filling material 42 can be used.

[0139] Activated carbon can also be added to at least a portion of the cellulose acetate tow filter 72 in the first nozzle section 62 of the nozzle section 16.

[0140] The mouthpiece portion 16 may contain, for example, a capsule with a breakable outer shell made of gelatin or the like within the cellulose acetate tow filter 72 in the first mouthpiece portion 16. There are no particular limitations on the form of the capsule, and the capsule may be one that can be easily broken by the force of a user's fingers, etc., and the capsule is preferably spherical in shape. Any of the above-described additives may be included as an additive in the capsule, but flavoring materials or activated charcoal are particularly preferred. Examples of flavoring materials include: menthol, spearmint, peppermint, fenugreek or cloves, and medium-chain triglycerides (MCTs), or combinations thereof.

[0141] From the perspective of increasing strength and structural rigidity, the first suction nozzle section 62 preferably includes a filter wrap 74 for wrapping the cellulose acetate tow filter 72. There are no particular limitations on the form of the filter wrap 74, and it may include a seam containing one or more adhesive lines. The adhesive may include both water-based adhesives and hot-melt adhesives, and the hot-melt adhesive may also include polyvinyl alcohol.

[0142] There are no particular limitations on the thickness of the filter wrapping 74, and it is generally preferred to be 20 µm to 140 µm. There are no particular limitations on the basis weight of the filter wrapping 74, and it is generally preferred to be 20 gsm to 100 gsm. Furthermore, the filter wrapping 74 may be coated or uncoated, but from the perspective of allowing for functions beyond strength and structural stiffness, it is preferred to be coated with the desired material.

[0143] For example, the second mouthpiece segment 64 is formed as a channel filter (hollow segment portion). The second mouthpiece segment 64 includes a filling layer 64a having one or more hollow channels. For example, the filling layer 64a includes fibers and has a high packing density of these fibers, so that when a user inhales, air and aerosols flow only through the hollow channels, and almost no air and aerosols flow through the filling layer 64a itself. When it is desirable to reduce the reduction of aerosol composition due to filtration of the mouthpiece segment 16, reducing the length of the first mouthpiece segment 62 to replace the first mouthpiece segment 62 with the second mouthpiece segment 64 is effective in regulating the amount of aerosol delivered by the flavored inhalation article 10.

[0144] Furthermore, when the nozzle portion 16 comprises two or more segments 62, 64, these segments 62, 64 are preferably joined together by a sheet-like connecting filter wrap (outer filter wrap) 66. That is, in addition to the two or more segments 62, 64, the nozzle portion 16 also includes the connecting filter wrap 66. There are no particular limitations on the material of the filter wrap 66 of the nozzle portion 16; well-known materials can be used, and the filter wrap 66 may also include filler, such as calcium carbonate. The same material as the filter wrap 74 of the first nozzle segment 62 can be used as the filter wrap 66, which is fixed in the same manner as the filter wrap 74 of the first nozzle segment 62. A seam can then be formed in the filter wrap 66 by providing a hot-melt adhesive adjacent to the water-based adhesive, or the seam can be formed solely by the water-based adhesive.

[0145] From the perspective of sensory changes in the satisfaction and comfort of sucking when holding the product in the mouth, the mouthpiece portion 16 may have a first mouthpiece section 62 disposed on the upstream side and a second mouthpiece section 64 disposed on the downstream side (mouthpiece end Me side).

[0146] The nozzle portion 16 is also preferably made of Figure 3B It is formed in the manner shown. Figure 3B The nozzle portion 16 shown includes a first nozzle section (1) 62a, a first nozzle section (2) 62b, a second nozzle section 64, and a sheet filter wrapping 66.

[0147] The first suction nozzle section (1) 62a includes a filling material 72a and a sheet-like wrapper 74a. As an example, a cellulose acetate tow filter is used for the filling material 72a. The wrapper 74a used is the same as the wrapper 74.

[0148] The first suction nozzle section (2) 62b includes a filler material 72b and a sheet-like wrapper 74b. As an example, the filler material 72b is a paper filter that is formed into a generally cylindrical rod of suitable length by crimping (curling) and folding. The wrapper 74b used is the same as the wrapper 74.

[0149] In the nozzle section 16, a first nozzle section (1) 62a is provided at the nozzle end Me, a first nozzle section (2) 62b is provided on its upstream side, and a second nozzle section 64 is provided on the upstream side of the first nozzle section (2) 62b. Then, the first nozzle section (1) 62a, the first nozzle section (2) 62b and the second nozzle section 64 are wrapped with a filter wrapping material 66.

[0150] Therefore, the nozzle part 16 adopts a suitable structure.

[0151] The outer periphery of the nozzle portion 16 and the cooling portion 14 is covered by a tipping paper 18. The end of the tipping paper 18 covers the rear end of the outer covering 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 nozzle portion 16.

[0152] There are no particular limitations on the material of the tipper 18, and it can be paper made from common plant fibers (pulp), sheets made from polymer-based chemical fibers (polypropylene, polyethylene, nylon, etc.), polymer-based sheets, metal foil, or composite materials composed of combinations of the above materials. For example, the tipper 18 can be made of a composite material in which a polymer-based sheet is laminated onto a paper substrate. It should be noted that the tipper 18 mentioned herein refers to a sheet material that connects multiple sections of the flavor inhalation article 10 (such as the connecting rod portion 12 and the mouthpiece portion 16).

[0153] The seam portion can then be formed in the splice paper 18 by providing a hot-melt adhesive adjacent to the water-based adhesive, or the seam portion can be formed solely by the water-based adhesive.

[0154] The basis weight of the butt-packed paper 18 is not particularly limited, but is generally preferably 10 gsm - 120 gsm. The air permeability of the butt-packed paper 18 is not particularly limited, but is generally preferably 0 CU - 30,000 CU. Air permeability is a value measured according to ISO 2965:2009, and is defined as the air permeability measured by the passage of 1 cm³ through 1 minute when the pressure difference between the two surfaces of the paper is 1 kPa. 2 Gas flow rate per square meter of surface area (cm²) 3 () indicates that at 1 kPa, 1 CU equals cm 3 / (min·cm) 2 ).

[0155] In addition to the pulp mentioned above, the tipping paper 18 may also contain filler materials, examples of which may include 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., and preferably calcium carbonate, especially from the perspective of improving whiteness and opacity and increasing heating rate. Furthermore, these filler materials may be used alone or in combination of two or more filler materials.

[0156] Various additives other than pulp and filling materials can also be added to the tipping paper 18. For example, the paper may contain water resistance improvers to enhance 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. Furthermore, 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 higher.

[0157] A coating agent may be applied to at least one of the two surfaces (i.e., the front surface and the back surface) of the tipping paper 18. There are no particular limitations 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.

[0158] An opening 18a for drawing in outside air is provided in the spigot paper 18 to allow room temperature outside air to come into contact with high-temperature vapor to enhance the cooling effect. The opening 18a in the spigot paper 18 is formed together with the opening 14a in the cooling section 14. Therefore, the opening 18a in the spigot paper 18 is in communication with the opening 14a in the cooling section 14.

[0159] Furthermore, preferably, the opening 18a is provided in the tipping paper 18 at a position directly above (vertically overlapping) the opening 14a provided in the cooling section 14. For this purpose, the tobacco stick 24, the cooling section 14, and the mouthpiece section 16 can be wrapped and connected together with the tipping paper 18, and then the tipping paper 18 and the cooling section 14 can be irradiated with a laser from above to allow the laser to penetrate them, thereby providing the openings 14a and 18a.

[0160] There is no particular limitation on the number of openings 18a in the cooling section 18. In this embodiment, a plurality of openings 18a are arranged at fixed intervals in the circumferential direction of the tipping paper 18. Furthermore, multiple sets of openings 18a arranged in the circumferential direction of the tipping paper 18 can be formed in multiple stages along the axial direction of the tipping paper 18. Providing openings 18a in the tipping paper 18 allows low-temperature external air to flow into the openings 14a in the cooling section 14 when the user inhales the flavor inhalation product 10, thereby reducing the temperature of the air and volatile components flowing in from the tobacco stick 24. Furthermore, vapors containing the aerosol-generating matrix and tobacco flavor components condense due to the cooling effect of the low-temperature air introduced into the tipping paper 18 through the openings 18a. In this way, aerosol generation is promoted, while the size of the aerosol particles can be controlled. It should be noted that the cooling effect can also be enhanced by coating the inner surface of the paper tube with a polymer coating (such as polyvinyl alcohol) or a polysaccharide coating (such as pectin), thereby utilizing the heat absorption of the coating or the heat of solution associated with the phase change. The airflow resistance of the cylindrical cooling section is 0 mmH2O.

[0161] Furthermore, there are no particular limitations on the airflow resistance in the axial direction for each single-flavor inhalation article 10 configured as described above; however, from the perspective of ease of inhalation, the airflow resistance is preferably typically between 10 mmH2O and 100 mmH2O. The airflow resistance is measured using a filter airflow resistance measuring instrument manufactured by Cerulean, for example, according to the ISO standard method (ISO 6565:2015). Airflow resistance represents the air pressure difference between the first and second end faces when air at a predetermined flow rate (17.5 cc / sec) flows from one end face (first end face) to another end face (second end face) without passing through the sides of the flavor inhalation article 10. The unit is typically expressed in mmH2O. It is known that the relationship between the airflow resistance of the flavor inhalation article 10 and its length is proportional within a normal length range (5-200 mm), and that the airflow resistance of the flavor inhalation article 10 doubles when the length is doubled.

[0162] The rod-shaped flavor inhalation article 10 preferably has a columnar shape, satisfying an aspect ratio h / w of 1 or greater as defined below. Here, w is the width (outer diameter) of the end De of the flavor inhalation article 10, and h is the length of the flavor inhalation article 10 in the axial direction, and preferably h ≥ w. There are no particular limitations on the cross-sectional shape of the flavor inhalation article 10, and it can be polygonal, rounded polygonal, circular, or elliptical, etc. 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 shape is elliptical, the diameter of the circumcircle when the shape is polygonal, or the major axis of the circumcircle of the ellipse when the shape is rounded polygonal. There are no particular limitations on the axial length h of the flavor inhalation article 10, and it is preferably typically, for example, 40 mm to 100 mm. There are no particular limitations on the width w of the end De of the flavor inhalation article 10, and it is preferably typically, for example, 5 mm to 10 mm. There is no particular limitation on the ratio (cooling portion 14:mouth portion 16) between the lengths of the flavor inhalation article 10 and the length of the cooling portion 14. However, from the perspective of the amount of flavoring material delivered and the appropriate aerosol temperature, this ratio is preferably typically 0.60-1.40:0.60-1.40. By setting the ratio between the lengths of the cooling portion 14 and the mouthpiece 16 within the above range, a balance is achieved between the cooling effect, the effect of suppressing loss due to the adhesion of generated vapors and aerosols to the inner wall of the cooling portion 14, and the function of the mouthpiece 16 in regulating air volume and flavor, thereby enabling the achievement of good flavor and flavor intensity.

[0163] The operation of the flavor inhalation system 200 according to an embodiment will be described. It should be noted that the flavor inhalation article 10 is used for at least several days after production to ensure adequate peel strength at the seams of the wrappers 34, 44, 54, 74, 66 and the tipping paper 18. That is, the shape of the flavor inhalation article 10 is maintained during normal use.

[0164] like Figure 1 As shown, the end rod 22 of the flavor inhalation article 10 is inserted into the receiving portion 311 of the device 300. At this time, the outer periphery of the end rod 22 and the tobacco rod 24 of the flavor inhalation article 10 is completely covered by the heating zone A1, which is heated by the heater 320. In addition, a portion of the outer periphery of the cooling portion 14 of the flavor inhalation article 10 is covered by the non-heated zone A2, which is not heated by the heater 320. Note that a portion of the heating zone A1 may cover a portion of the outer periphery of the cooling portion 14.

[0165] In this state, based on the user pressing a switch (not shown) on the device 300, based on the detection that the end rod 22 of the flavor inhalation article 10 has been inserted into the receiving portion 311 of the device 300, or based on the detection that the user inhales the flavor inhalation article 10 after the end rod 22 has been inserted into the receiving portion 311 of the device 300, the control unit 370 causes the heater 320 to heat to a predetermined temperature using electricity from the power source 380. The heater 320 heats a portion of the first seam portion 36, the second seam portion 46, and the third seam portion 56 in the heating area A1.

[0166] When the area containing the hot-melt adhesive is heated to a predetermined temperature causing the hot-melt adhesive to melt, it is feasible that the smoking odor will decrease compared to before the hot-melt adhesive melts. In the flavor inhalation article 10 according to this embodiment, the first seam portion 36, the second seam portion 46, or the third seam portion 56 do not contain 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, a reduction in the smoking odor is prevented.

[0167] Furthermore, even when heated by the heater 320, the water-based adhesives 37a and 37b in the first joint portion 36, the second joint portion 46, and the third joint portion 56 will not melt. Therefore, the water-based adhesives 37a, 37b, 47a, 47b, 57a, and 57b can be prevented from adhering to the receiving portion 311 of the device 300. Therefore, compared to using hot-melt adhesives, the frequency of maintenance operations in the receiving portion 311 of the device 300 can be reduced.

[0168] Therefore, this embodiment enables the provision of a rod portion for a flavored inhalation article, a non-combustible flavored inhalation article, and a non-combustible flavored inhalation system that prevents a decrease in the strength of the seam portion of the packaging (such as the seam portion of the tobacco rod of the flavored inhalation article) when heated. Furthermore, this embodiment also prevents molten adhesives or glues from the rod portion of the flavored inhalation article from adhering to the device including the heater.

[0169] It should be noted that the embodiments describe an example where the first joint portion 36 has two regions 36a and 36b, the second joint portion 46 has two regions 46a and 46b, and the third joint portion 56 has two regions 56a and 56b. For example, one or both of the first joint portion 36, the second joint portion 46, and the third joint portion 56 can be fixed in only one region by a water-based adhesive. That is, at least one of the first joint portion 36, the second joint portion 46, and the third joint portion 56 can be used to fix the overlapping portion along the axial direction of the rod portion 12 with a single strip of water-based adhesive.

[0170] First variant example

[0171] The above embodiments describe an example in which the entire first region (1) 36a is coated with water-based adhesive 37a and the entire first region (2) 36b is coated with water-based adhesive 37b.

[0172] like Figure 15 As shown, the first region (2) 36b is coated with multiple water-based adhesive strips 37b1 and 37b2.

[0173] Water-based adhesive 37b1 is continuous along the axial direction of the rod portion 12. Water-based adhesive 37b2 is also continuous along the axial direction of the rod portion 12. Water-based adhesives 37b1 and 37b2 may be left in multiple strips or may be mixed together in the first region (2) 36b. The amounts of water-based adhesives 37b1 and 37b2 may be the same or different. If the amounts are different, for example, the amount of water-based adhesive 37b2 on the circumferentially outer side may be greater than the amount of water-based adhesive 37b1 on the circumferentially inner side, and vice versa.

[0174] Furthermore, the total amount of water-based adhesives 37b1 and 37b2 can be greater than the amount of water-based adhesive 37a in the first region (1) 36a. In this case, the amount of either water-based adhesive 37b1 or 37b2 is smaller than that of water-based adhesive 37a in the first region (1) 36a, allowing either water-based adhesive 37b1 or water-based adhesive 37b2 to dry faster in the first region (2) 36b than water-based adhesive 37a, thereby allowing the overlapping portion 34a to be fixed more quickly.

[0175] In addition, the first region (1) 36a may also be coated with multiple water-based adhesives 37a.

[0176] Therefore, the water-based adhesive 37a in the first region (1) 36a and / or the water-based adhesive 37b in the first region (2) 36b can be applied in multiple water-based adhesives.

[0177] Furthermore, the water-based adhesive 37b in the first region (2) 36b as described above can also be used in the second region (2) 46b of the wrapping 44, and in the third region (2) 56b of the outer wrapping 54, etc.

[0178] Second variant example

[0179] like Figure 16 As shown, multiple pieces of water-based adhesive 37b are applied in a dispersed manner at predetermined intervals along the axial direction of the rod portion 12, for example. These water-based adhesives 37b may remain in a dispersed form or may be mixed together in the first region (2) 36b.

[0180] Furthermore, the water-based adhesive 37b in the first region (2) 36b as described above can also be used in the second region (2) 46b of the wrapping 44, and in the third region (2) 56b of the outer wrapping 54, etc.

[0181] Third variant example

[0182] like Figure 17 As shown, multiple pieces of water-based adhesive 37b are applied to the first region (2) 36b at predetermined intervals, for example, along the axial direction of the rod portion 12. The multiple pieces of water-based adhesive 37b are arranged differently within the first region (2) 36b along the axial direction of the rod portion 12, such that there are water-based adhesive 37b on the side opposite to the end face 34c on the circumferentially inner side of the wrapping 34 and water-based adhesive 37b on the side opposite to the end face 34b on the circumferentially outer side of the wrapping 34. These water-based adhesives 37b may remain in a dispersed form or may be mixed together in the first region (2) 36b.

[0183] Furthermore, the water-based adhesive 37b in the first region (2) 36b as described above can also be used in the second region (2) 46b of the wrapping 44, and in the third region (2) 56b of the outer wrapping 54, etc.

[0184] Fourth variant example

[0185] like Figure 18As shown, multiple water-based adhesives 37b are applied to the first region (2) 36b at appropriate intervals, for example, along the axial direction of the rod portion 12. The multiple water-based adhesives 37b are arranged in groups within the first region (2) 36b along the axial direction of the rod portion 12. Each group includes a water-based adhesive 37b on one side of the end face 34c offset from the circumferentially inner side of the wrapping 34, a water-based adhesive 37b disposed between the end face 34c on the circumferentially inner side of the wrapping 34 and the end face 34b on the circumferentially outer side of the wrapping 34, and a water-based adhesive 37b on one side offset from the end face 34b on the circumferentially outer side of the wrapping 34. These water-based adhesives 37b are arranged in multiple groups along the axial direction of the rod portion 12. These water-based adhesives 37b may remain in a dispersed form or may be mixed together in the first region (2) 36b.

[0186] Furthermore, the water-based adhesive 37b in the first region (2) 36b as described above can also be used in the second region (2) 46b of the wrapping 44, and in the third region (2) 56b of the outer wrapping 54, etc.

[0187] Therefore, a structure having multiple regions in a direction intersecting the axial direction of the rod portion 12 and these multiple regions being placed along the axial direction of the rod portion 12, and a structure having one region placed along the axial direction of the rod portion 12, are appropriately selected as the structures for fixing the first seam portion 36, the second seam portion 46, and the third seam portion 56 of the flavor inhalation article 10 (structures for connecting them).

[0188] It should be noted that the present invention is not limited to the embodiments described above, and can be modified in various ways during the implementation phase without departing from the essential points of the invention. Furthermore, embodiments can be implemented in suitable combinations, in which case their combined effects are achieved. Embodiments further include various inventions, and various inventions can be extracted using combinations selected from the disclosed plurality of constituent requirements. For example, if the problem can still be solved and the effect can still be achieved when some of the constituent requirements are removed from the constituent requirements disclosed as a whole in the embodiments, then the configuration from which those constituent requirements have been removed can be extracted as an invention.

[0189] appendix

[0190] [1] A rod portion for a flavor inhalation article, the rod portion for the flavor inhalation article comprising:

[0191] Filler material;

[0192] The package, which is formed in the shape of a sheet and covers the outer periphery of the filling material; and

[0193] A first seam portion, which is disposed along the axial direction of the rod portion at the overlapping portion between the end portions of the package, includes a first region (1) provided by a water-based adhesive and a first region (2) provided by a water-based adhesive and disposed circumferentially outward adjacent to the first region (1) at the overlapping portion of the package, and secures the overlapping portion of the package.

[0194] in,

[0195] Hot melt adhesives that melt when heated are not used at the first joint.

[0196] [2] As disclosed in Appendix 1, the rod portion for flavor inhalation articles, wherein a first region (2) is disposed along the axial direction of the rod portion.

[0197] [3] The rod portion for flavored inhalation articles as disclosed in Appendix 1 or 2, wherein the amount of water-based adhesive in the first region (1) is greater than the amount of water-based adhesive in the first region (2).

[0198] [4] The rod portion for flavored inhalation articles disclosed in any of Appendices 1 to 3, wherein the amount of water-based binder in the first region (1) and the first region (2) is 1 mg / 120 mm to 5 mg / 120 mm.

[0199] [5] A rod portion for a flavored inhalation article as disclosed in any of Appendices 1 to 4, wherein a region without a water-based adhesive is provided between the first region (1) and the first region (2) along the axial direction of the rod portion.

[0200] [6] As disclosed in Appendix 5, the rod portion for flavored inhalation articles, wherein the area without water-based adhesive has a width of 0.1 mm to 2 mm in the circumferential direction intersecting the axial direction of the rod portion.

[0201] [7] The rod portion of a flavor inhalation article disclosed in any of Appendices 1 to 6, wherein the width of the first seam portion in the circumferential direction intersecting the axial direction of the rod portion is 1 mm to 3 mm.

[0202] [8] The rod portion of a flavor inhalation article as described in any one of Appendices 1 to 7, wherein the distance between the end face of the first region (2) and the circumferentially outer side of the overlapping portion on the wrapper is greater than 0 mm and less than 2 mm.

[0203] [9] A rod portion for a flavored inhalation article as disclosed in any of Appendices 1 to 8, wherein the filling material comprises at least one of the following: sheet material formed of nonwoven or resin material, cellulose acetate, shredded tobacco and tobacco flakes.

[0204]

[10] The rod portion for flavored inhalation articles disclosed in any of Appendices 1 to 9, wherein the water-based binder comprises one of the following: ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC) and starch paste, or a mixture of at least two of said EVA, PVA, CMC and starch paste.

[0205]

[11] A non-combustible flavor inhalation article comprising: a rod portion for a flavor inhalation article as disclosed in any one of Appendices 1 to 10, the rod portion being disposed on or near a heated portion;

[0206] A cooling section is located downstream of the rod section;

[0207] The suction nozzle portion is located downstream of the cooling portion;

[0208] A sheet-like outer covering connecting the outer periphery of the rod portion and the outer periphery of the cooling portion; and

[0209] The second seam portion, which is located along the axial direction of the rod portion at the overlapping portion between the end portions of the outer wrapping, has an area provided by a water-based adhesive and secures the overlapping portion of the outer wrapping.

[0210] in,

[0211] Hot melt adhesive that melts when heated is not used at this second joint.

[0212]

[12] As disclosed in Appendix 11, the second seam portion is provided at the overlap between the end portions of the outer wrapping along the axial direction of the rod portion, and at the overlap of the outer wrapping includes a second region (1) provided by a water-based adhesive and a second region (2) provided by a water-based adhesive and disposed circumferentially outside the second region (1).

[0213]

[13] As disclosed in Appendix 11 or 12, the non-combustible flavored inhalation article includes an end rod disposed on the side opposite to the mouthpiece of the non-combustible flavored inhalation article, and a tobacco rod disposed between the end rod and the cooling section.

[0214]

[14] A non-combustible flavored inhalation system, comprising: a non-combustible flavored inhalation article as disclosed in any one of Appendices 11 to 13; and

[0215] The device includes a receiving portion on the outer side of the rod portion for receiving the non-combustible flavored inhalation article, and

[0216] A heater is disposed in the housing portion and heats the outer periphery of the rod portion.

[0217]

[15] The non-combustible flavor inhalation system disclosed in Appendix 14, wherein the filling material includes an aerosol generating matrix for generating aerosols by means of heating provided by a heater.

[0218]

[16] A non-combustible flavor inhalation system, comprising: a non-combustible flavor inhalation article as disclosed in Appendix 13; and

[0219] The device includes a receiving portion for accommodating the outer side of the end rod of the non-combustible flavored inhalation article and the outer side of the tobacco rod, and

[0220] A heater is disposed in the receiving portion and heats at least the outer side of the end rod and the outer side of the tobacco rod.

[0221]

[17] The non-combustible flavor inhalation system disclosed in Appendix 16 includes an aerosol generating matrix as a filling material for a tobacco rod, which is used to generate an aerosol by means of heating provided by a heater.

[0222] List of reference numerals

[0223] 10…Non-combustible flavored inhalation product, 12…Bar section, 14…Cooling section, 18…Tip paper, 22…End bar, 24…Tobacco bar, 32…Filling material, 34…Internal plug wrapping, 34a…Overlapping section, 34b, 34c…End face, 36…First seam section, 36a…First region (1), 36b…First region (2), 37a, 37b…Water-based adhesive, 38a, 38b, 38c…Unadhesive-free region, 42…Filling material, 44…Wrapping, 44 a…overlapping portion, 44b, 44c…end face, 46…second joint portion, 46a…second region (1), 46b…second region (2), 47a, 47b…water-based adhesive, 48a, 48b, 48c…unadhesive-free region, 54…outer wrapping, 54a…overlapping portion, 54b, 54c…end face, 56…third joint portion, 56a…third region (1), 56b…third region (2), 57a, 57b…water-based adhesive, 58a, 58b…unadhesive-free region.

Claims

1. A rod portion for a flavor inhalation article, the rod portion comprising: Filler material; A wrapping material, which is formed in the shape of a sheet and covers the outer periphery of the filling material; as well as A first seam portion, which is disposed along the axial direction of the rod portion at the overlapping portion between the end portions of the package, includes a first region (1) provided by a water-based adhesive and a first region (2) provided by a water-based adhesive and disposed circumferentially outward adjacent to the first region (1) at the overlapping portion of the package, and secures the overlapping portion of the package. in, Hot melt adhesives that melt when heated are not used at the first joint.

2. The rod portion for a flavor inhalation article as claimed in claim 1, wherein, The first region (2) is set along the axial direction of the rod section.

3. The rod portion for a flavor inhalation article as described in claim 1 or 2, wherein, The amount of water-based adhesive in the first region (1) is greater than the amount of water-based adhesive in the first region (2).

4. The rod portion for a flavor inhalation article as claimed in any one of claims 1 to 3, wherein, The amount of water-based adhesive in the first region (1) and the first region (2) is 1 mg / 120 mm to 5 mg / 120 mm.

5. The rod portion for a flavor inhalation article as claimed in any one of claims 1 to 4, wherein, A region without water-based adhesive is provided between the first region (1) and the first region (2) along the axial direction of the rod portion.

6. The rod portion for a flavor inhalation article as claimed in claim 5, wherein, The area without water-based adhesive has a width of 0.1 mm to 2 mm in the circumferential direction intersecting the axial direction of the rod section.

7. The rod portion for a flavor inhalation article as claimed in any one of claims 1 to 6, wherein, The width of the first joint portion in the circumferential direction intersecting the axial direction of the rod portion is 1 mm-3 mm.

8. The rod portion for a flavor inhalation article as claimed in any one of claims 1 to 7, wherein, The distance between the end face of the first region (2) and the circumferential outer side of the overlapping portion on the package is greater than 0 mm and less than 2 mm.

9. The rod portion for a flavor inhalation article as claimed in any one of claims 1 to 8, wherein, The filling material includes at least one of the following: sheet material formed from nonwoven or resin material, cellulose acetate, shredded tobacco and tobacco flakes.

10. The rod portion for a flavor inhalation article as claimed in any one of claims 1 to 9, wherein, The water-based adhesive comprises one of the following: ethylene-vinyl acetate copolymer resin (EVA), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), and starch paste, or a mixture of at least two of said EVA, PVA, CMC, and starch paste.

11. A non-combustible flavored inhalation product, comprising: The rod portion for a flavor inhalation article as described in any one of claims 1 to 10, wherein the rod portion is disposed on or near the heated portion; A cooling section is located downstream of the rod section; The suction nozzle portion is located downstream of the cooling portion; A sheet-like outer covering connects the outer periphery of the rod portion and the outer periphery of the cooling portion; as well as The second seam portion, which is located along the axial direction of the rod portion at the overlapping portion between the end portions of the outer wrapping, has an area provided by a water-based adhesive and secures the overlapping portion of the outer wrapping. in, Hot melt adhesives that melt when heated are not used at this second joint.

12. The non-combustible flavored inhalation product as claimed in claim 11, wherein, The second seam portion is disposed at the overlapping portion between the end portions of the outer wrapping along the axial direction of the rod portion, and includes a second region (1) provided by a water-based adhesive and a second region (2) provided by a water-based adhesive and disposed circumferentially outward of the overlapping portion of the outer wrapping adjacent to the second region (1).

13. The non-combustible flavored inhalation article as claimed in claim 11 or 12, wherein, The rod portion includes an end rod and a tobacco rod, the end rod being disposed on the side opposite to the mouthpiece portion of the non-combustible flavored inhalation product, and the tobacco rod being disposed between the end rod and the cooling portion.

14. A non-combustible flavor inhalation system, comprising: Non-combustible flavored inhalation product as claimed in any one of claims 11 to 13; as well as The device includes a receiving portion on the outer side of the rod portion for receiving the non-combustible flavored inhalation article, and A heater is disposed in the housing portion and heats the outer periphery of the rod portion.

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