Flavor-generating article and flavor-generating system

Abstract

This flavor-generating article generates a flavor through heating. The flavor-generating article comprises: a first flavor source; a first member disposed at a first end of the flavor-generating article on the upstream side of the first flavor source; a first packaging member for packaging at least a part of the first member; a second member disposed at a second end of the flavor-generating article on the downstream side of the first flavor source; and a second packaging member for packaging at least a part of the second member. The first packaging member includes at least one type of member that differs from members included in the second packaging member.

Description

Flavor generating article and flavor generating system

[0001] The present invention relates to flavor generating articles and flavor generating systems.

[0002] Conventionally, non-combustion heating type flavor inhalers are known that generate aerosols or the like by heating a material containing a flavor source without burning the material. A flavor-generating product containing a material containing a flavor source is housed and heated in such flavor inhalers. A member called a front end plug or a tip plug is disposed at the upstream end of the flavor-generating product (see Patent Document 1).

[0003] Patent No. 7078317

[0004] When a user inserts a flavor-generating article into a flavor inhaler, the upstream and downstream sides (mouthpiece sides) may be reversed. Alternatively, when manufacturing or packaging the flavor-generating article, it may be necessary to distinguish between the upstream end and the downstream end of the flavor-generating article.

[0005] In view of the above, it is an object of the present invention to provide a flavor generating article and a flavor generating system in which the upstream and downstream ends of the flavor generating article are easily distinguishable.

[0006] According to one aspect, there is provided a flavor generating article that generates a flavor upon heating, the flavor generating article comprising: a first flavor source; a first member disposed at a first end of the flavor generating article upstream of the first flavor source; a first packaging member that packages at least a portion of the first member; a second member disposed at a second end of the flavor generating article downstream of the first flavor source; and a second packaging member that packages at least a portion of the second member, wherein the first packaging member includes at least one member different from a member included in the second packaging member.

[0007] According to the above aspect, it is possible to provide a flavor-generating article in which the upstream end and the downstream end can be easily distinguished.

[0008] The first member may be a tip plug.

[0009] In this case, it is possible to prevent the first flavor source from falling off from the first end of the flavor-generating article.

[0010] The first packaging member may extend longitudinally of the flavor generating article from a location upstream of the first flavor source to the first end.

[0011] In this case, the first member packaged in the first packaging member can be easily produced, and the flavor-generating article can be easily produced.

[0012] The first packaging member may be a flame-retardant sheet.

[0013] In this case, it is possible to prevent the user from inhaling components produced by combustion.

[0014] The first packaging member may include at least one of metal and ceramic.

[0015] In this case, the first packaging member can be easily processed.

[0016] The first packaging member may include the metal, and the tensile strength of the metal may be 30 N / 15 mm or more and 40 N / 15 mm or less.

[0017] In this case, the flavor-generating article can be made lighter and more compact while ensuring the workability or strength of the first packaging member.

[0018] The first packaging member may include a metal foil.

[0019] In this case, the flavor-generating article can be made even lighter and more compact.

[0020] The first packaging member may include aluminum-laminated paper or aluminum-deposited paper.

[0021] In this case, aluminum-laminated paper and aluminum-metallized paper are readily available, and flavor-generating products can be produced efficiently.

[0022] The first component may include at least one of a second flavor source and an aerosol source.

[0023] In this case, it is possible to deliver more flavor to the user, or adjust the time at which the flavor is generated from the first flavor source and the time at which the flavor is generated from the second flavor source, thereby adjusting the change in flavor over time.

[0024] The second member may include a filter.

[0025] In this case, the amount of air and flavor during inhalation can be adjusted.

[0026] The second packaging member may be paper without a metal layer.

[0027] In this case, the flavor-generating article can be made even lighter and more compact.

[0028] The flavor-generating article may further include at least one paper layer on the outside of at least one of the first packaging member and the second packaging member.

[0029] In this case, the portions of the flavor generating article can be securely connected.

[0030] The flavor generating article may be a tobacco stick.

[0031] In this case, a tobacco smoking article that is easy for the user to carry can be provided.

[0032] According to another aspect, a flavor generating system includes the flavor generating article described above and a non-combustion heating type flavor inhaler.

[0033] In this case, a flavor generating system can be provided in which the upstream end and downstream end of the flavor generating article can be easily distinguished.

[0034] The flavor inhaler may include a heating unit that heats the flavor-generating article from outside the flavor-generating article.

[0035] In this case, the flavor-generating article can be heated without the need to insert a heater such as a pin-type heater into the flavor-generating article, and it is possible to prevent parts of the flavor-generating article from adhering to such a heater, thereby preventing a decrease in heating efficiency.

[0036] 1 is a perspective view showing a flavor generating system according to one embodiment; FIG. 2 is a perspective view showing a flavor inhaler according to one embodiment; FIG. 3 is a cross-sectional view showing the flavor inhaler taken along line 3-3 in FIG. 2; FIG. 4 is a perspective view of a chamber; FIG. 5 is a cross-sectional view showing the chamber taken along line 5-5 in FIG. 4; FIG. 6 is a cross-sectional view showing the chamber taken along line 6A-6A in FIG. 5; FIG. 6 is a cross-sectional view showing the chamber taken along line 6B-6B in FIG. 5; FIG. 7 is a cross-sectional view of a chamber in which a flavor generating article is housed; FIG. 8 is an exploded perspective view of a flavor generating article according to one embodiment; FIG. 9 is a schematic cross-sectional view of a flavor generating article according to one embodiment; FIG. 10 is a schematic cross-sectional view of a first inner plug wrap; FIG. 11 is an exploded perspective view of a flavor generating article according to another embodiment; FIG. 12 is an enlarged cross-sectional view showing an atomizing unit and a control unit when the flavor generating article is housed in a desired position in the flavor inhaler; FIG. 13 is a cross-sectional view schematically showing a first segment; FIG. 14 is a conceptual diagram showing a method for measuring a hardness index; FIG. 15 is a graph showing energy consumption during aerosol generation for Comparative Examples C1 and C2; FIG. 16 is a graph showing the amount of nicotine and glycerin delivered during aerosol generation for Comparative Examples C1 and C2. 1 is a graph showing the energy consumption during aerosol generation for Comparative Example C3 and Example E1. FIG. 2 is a graph showing the nicotine and glycerin delivery during aerosol generation for Comparative Example C3 and Example E1.

[0037] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings described below, the same or corresponding components are designated by the same reference numerals, and duplicate explanations will be omitted. In the following drawings, the dimensions of each part have been changed appropriately for easy understanding.

[0038] Fig. 1 is a perspective view showing a flavor generating system 1000 according to one embodiment of the present invention. Fig. 2 is a perspective view showing a flavor inhaler 200 according to one embodiment of the present invention. The flavor generating system 1000 is configured by applying a flavor generating article 100 to a flavor inhaler 200 having a heating source 40 (corresponding to an example of a heating unit) described below. At least a portion of the flavor generating article 100 is accommodated in the flavor inhaler 200 through an opening 210.

[0039] In the drawings described in this specification, an X-Y-Z Cartesian coordinate system may be used for convenience of explanation. In this coordinate system, the Z-axis faces vertically upward, the X-Y plane is positioned so as to cut the flavor inhaler 200 horizontally, and the Y-axis is positioned so as to extend from the front to the back of the flavor inhaler 200. The Z-axis direction can also be referred to as the insertion direction of the flavor generating article 100 housed in the chamber 50 described below. The X-axis direction can also be referred to as the longitudinal direction of the device in a plane perpendicular to the insertion direction of the flavor generating article 100. The Y-axis direction can also be referred to as the lateral direction of the device in a plane perpendicular to the insertion direction of the flavor generating article 100.

[0040] The flavor inhaler 200 is configured to generate aerosol containing a flavor by, for example, heating a stick-shaped flavor generating article 100 having a flavor source containing an aerosol source. The flavor generating article 100 is configured, for example, to include a smokable article containing a flavor source such as tobacco and an aerosol source at its tip end in the negative Z-axis direction, and to include a filter at another location. The flavor generating article 100 is configured to generate a flavor by being heated by the non-combustion heating type flavor inhaler 200.

[0041] In this embodiment, the flavor generating article 100 is described as having a stick shape, but the flavor generating article used in the flavor inhaler 200 is not limited to this. For example, the flavor generating article may be configured to include a cartridge containing a liquid aerosol source. The cartridge may also have a heater. The flavor generating article 100 may be a tobacco stick. This makes it possible to provide a tobacco smoking article that is easy for the user to carry.

[0042] 1 and 2, the flavor inhaler 200 has a housing 202 composed of an upper housing 204 and a lower housing 206, and a slide cover 208. The housing 202 constitutes the outermost housing of the flavor inhaler 200 and has a size that fits in a user's hand. When using the flavor inhaler 200, the user can hold the flavor inhaler 200 in their hand and inhale the aerosol.

[0043] In this example, the upper housing 204 of the housing 202 is made of a resin such as polycarbonate, and the lower housing 206 is made of a metal such as aluminum. However, the material of the housing 202 is not limited to these, and may be any suitable resin, particularly polycarbonate (PC), ABS (Acrylonitrile-Butadiene-Styrene) resin, PEEK (Polyether Ether Ketone), or a polymer alloy containing multiple types of polymers.

[0044] The upper housing 204 has an opening 210 for receiving the flavor-generating article 100, and the sliding cover 208 is slidably attached to the upper housing 204 to close the opening 210. Specifically, the sliding cover 208 is configured to be movable along the outer surface of the upper housing 204 between a closed position, at which the opening 210 of the upper housing 204 is closed, and an open position (the position shown in FIGS. 1 and 2 ), at which the opening 210 is open. For example, a user can manually operate the sliding cover 208 to move the sliding cover 208 between the closed position and the open position. In this way, the sliding cover 208 can allow or restrict access of the flavor-generating article 100 to the interior of the flavor inhaler 200.

[0045] In the flavor generating system 1000, air inhaled by a user is introduced into the flavor inhaler 200 through the opening 210, flows through the chamber 50 in the negative direction of the Z axis, and is supplied to the upstream end face of the flavor generating article 100. That is, the flavor generating system 1000 shown in Fig. 1 has a so-called counterflow type air flow path. Note that the air flow path is not limited to the counterflow type, and may have a so-called bottom flow type air flow path in which air is supplied from the bottom of the chamber 50 to the upstream end face of the flavor generating article 100.

[0046] 1 and 2 illustrate the housing 202 of the flavor inhaler 200 such that the joint surface between the upper housing 204 and the lower housing 206 intersects obliquely with the XY plane, but the configuration of the housing 202 is not limited to this. For example, the housing 202 may be configured from three or more members.

[0047] The flavor inhaler 200 may further have a terminal (not shown). The terminal may be an interface for connecting the flavor inhaler 200 to, for example, an external power source. If the power source of the flavor inhaler 200 is a rechargeable battery, connecting the external power source to the terminal allows current to flow from the external power source to the power source, thereby charging the power source. In addition, connecting a data transmission cable to the terminal may allow data related to the operation of the flavor inhaler 200 to be transmitted to an external device.

[0048] Next, the internal structure of the flavor inhaler 200 according to one embodiment of the present invention will be described. Figure 3 is a cross-sectional view showing the flavor inhaler 200 taken along the arrow 3-3 in Figure 2. As shown in Figure 3, the power supply unit 20, the atomization unit 30, and the control unit 80 are provided in the internal space of the housing 202 of the flavor inhaler 200.

[0049] The control unit 80 includes a substrate 81. The substrate 81 includes, for example, a microprocessor, and can control the supply of power from the power supply unit 20 to the atomization unit 30. This allows the control unit 80 to control the heating of the flavor-generating article 100 by the atomization unit 30. The control unit 80 also includes a Bluetooth (registered trademark) interface 82. The control unit 80 can communicate with external devices via the Bluetooth interface 82.

[0050] The power supply unit 20 has a power supply 21 electrically connected to a substrate 81 of the control unit 80. The power supply 21 may be, for example, a rechargeable battery or a non-rechargeable battery. The power supply 21 is electrically connected to the atomizing unit 30 via the substrate 81. This allows the power supply 21 to supply power to the atomizing unit 30 so as to appropriately heat the flavor-generating article 100.

[0051] The atomization unit 30 includes a chamber 50 extending in the longitudinal direction of the flavor generating article 100, a heat source 40 surrounding a portion of the chamber 50, a heat insulating unit 32, and a substantially cylindrical insertion guide member 34. The chamber 50 has a cylindrical shape that accommodates the flavor generating article 100. The chamber 50 may also have a so-called elliptical shape having a major axis and a minor axis in a cross section perpendicular to the longitudinal direction of the flavor inhaler 200. The chamber 50 is preferably formed from a heat-resistant material with a small coefficient of thermal expansion, and may be formed from, for example, a metal such as stainless steel, a resin such as PEEK, glass, ceramic, or the like.

[0052] The heat source 40 is configured to contact the outer peripheral surface of the chamber 50 and heat the flavor-generating article 100 housed in the chamber 50. The heat source 40 is a heating element that generates heat, i.e., its temperature increases, due to power from the power supply unit 20. The heat source 40 may be a sheet-like heater. The heat source 40 may be provided so as to contact the outer peripheral surface of the chamber 50, or may be provided on the inner surface of the chamber 50. Here, the longitudinal length of the heat source 40 is, for example, 10 mm. The heater constituting the heat source 40 may include an electric heating wire. The heater is disposed outside the chamber 50, which functions as a housing unit for housing the flavor-generating article, and is configured to heat the flavor-generating article 100 housed in the chamber 50 from outside the flavor-generating article 100. In this way, the flavor inhaler 200 is preferably an externally heated flavor inhaler. The heating source 40 may be a susceptor disposed in the flavor generating article 100, and may be configured to be induction heated by an induction coil disposed in the flavor inhaler 200. Alternatively, the heating source 40 may be a microwave absorber such as water or glycerin contained in the flavor generating article 100, and may be configured to be heated by microwaves from a microwave radiation source disposed in the flavor inhaler 200. With such a configuration, the flavor generating article 100 can be heated without the need to insert a heater such as a pin-type heater into the flavor generating article 100, and a decrease in heating efficiency due to adhesion of part of the flavor generating article 100 to such a heater can be suppressed.

[0053] The heat insulating section 32 is disposed to surround the chamber 50 and the heating source 40 and suppresses heat radiation to the outside of the chamber 50. The heat insulating section 32 may be made of, for example, aerogel. The insertion guide member 34 is formed of a resin material such as PEEK, PC, or ABS, and is provided between the sliding cover 208 in the closed position and the chamber 50. When the sliding cover 208 is in the open position, the insertion guide member 34 communicates with the outside of the flavor inhaler 200, and guides the insertion of the flavor generating article 100 into the chamber 50 by inserting the flavor generating article 100 into the insertion guide member 34.

[0054] Fig. 4 is a perspective view of the chamber 50. Fig. 5 is a cross-sectional view of the chamber 50 taken along the arrows 5-5 shown in Fig. 4. Fig. 6A is a cross-sectional view of the chamber 50 taken along the arrows 6A-6A shown in Fig. 5. Fig. 6B is a cross-sectional view of the chamber 50 taken along the arrows 6B-6B shown in Fig. 5. Fig. 7 is a cross-sectional view taken along the arrows 6B-6B in a state in which the flavor-generating article 100 has been placed at a desired position in the chamber 50.

[0055] As shown in FIGS. 4 and 5, the chamber 50 may be a cylindrical member including a chamber opening 52 through which the flavor generating article 100 is inserted and a cylindrical sidewall 60 that houses the flavor generating article 100.

[0056] As shown in Figures 5 and 6B, the side wall portion 60 includes a contact portion 62 and a separation portion 66. When the flavor-generating article 100 is placed at a desired position in the chamber 50, the contact portion 62 contacts or presses against a portion of the flavor-generating article 100, and the separation portion 66 is separated from the flavor-generating article 100. In this disclosure, the "desired position in the chamber 50" refers to a position where the flavor-generating article 100 is appropriately heated, or the position of the flavor-generating article 100 when a user inhales the flavor. The contact portion 62 has an inner surface 62a and an outer surface 62b. The separation portion 66 has an inner surface 66a and an outer surface 66b. The heat source 40 is placed on the outer surface 62b of the contact portion 62. It is preferable that the heat source 40 be placed on the outer surface 62b of the contact portion 62 without any gaps. The heat source 40 may include an adhesive layer. In this case, it is preferable that the heat source 40 including the adhesive layer is arranged on the outer surface 62b of the contact portion 62 without any gaps.

[0057] As shown in Figures 4 and 5, the outer surface 62b of the contact portion 62 is flat. Because the outer surface 62b of the contact portion 62 is flat, when a strip-shaped electrode connected to the heat source 40 is disposed on the outer surface 62b of the contact portion 62, bending of the electrode can be suppressed. As shown in Figures 5 and 6B, the inner surface 62a of the contact portion 62 is flat. Furthermore, as shown in Figures 5 and 6B, the thickness of the contact portion 62 is uniform.

[0058] 4 and 5, the chamber 50 preferably has a cylindrical non-retaining portion 54 between the chamber opening 52 and the side wall portion 60. When the flavor-generating article 100 is positioned at a desired position in the chamber 50, a gap may be formed between the non-retaining portion 54 and the flavor-generating article 100. Also, as shown in FIGS. 4 and 5, the chamber 50 preferably has a chamber guide portion 58 having a tapered surface 58a connecting the inner surface of the non-retaining portion 54 and the inner surface 62a of the contact portion 62.

[0059] 4, 5, and 6B, the chamber 50 has two contact portions 62 arranged in the circumferential direction of the chamber 50, and the two contact portions 62 face each other so as to be parallel to each other. It is preferable that at least a part of the distance between the inner surfaces 62a of the two contact portions 62 is smaller than the width of the portion of the flavor-generating article 100 inserted into the chamber 50 that is disposed between the contact portions 62.

[0060] 6B , an inner surface 66a of the separation portion 66 may have an overall arc-shaped cross section in a plane perpendicular to the longitudinal direction (Z-axis direction) of the chamber 50. In addition, the separation portion 66 is disposed so as to be adjacent to the contact portion 62 in the circumferential direction.

[0061] 5 and 6A, a step 560 is formed in the bottom 56 of the chamber 50. The step 560 is configured to expose at least a portion of the end surface of the flavor-generating article 100. The bottom 56 can also support a portion of the flavor-generating article 100 so that the exposed end surface of the flavor-generating article 100 communicates with a void 67 (see FIG. 7), which will be described later. The shape of the step 560 is not limited to the shape shown in the drawings, as long as it is possible to introduce air into the flavor-generating article 100.

[0062] 7 is a cross-sectional view taken at the same position as FIG. 6B with the flavor-generating article 100 positioned at a desired position within the chamber 50. As shown in FIG. 7 , when the flavor-generating article 100 is positioned at a desired position within the chamber 50, the flavor-generating article 100 can be pressed into contact with the contact portion 62 of the chamber 50. Meanwhile, a gap 67 is formed between the flavor-generating article 100 and the separation portion 66. The gap 67 can communicate with the chamber opening 52 and an end face of the flavor-generating article 100 positioned within the chamber 50. This allows air flowing in from the chamber opening 52 to pass through the gap 67 and enter the interior of the flavor-generating article 100. In other words, an air flow path (gap 67) is formed between the flavor-generating article 100 and the separation portion 66.

[0063] Fig. 8 is an exploded perspective view of the flavor generating article 100. Fig. 9 is a schematic side cross-sectional view of the flavor generating article 100. As shown in Figs. 8 and 9 , the flavor generating article 100 includes a first flavor source 221 that generates a flavor, and a tip plug portion 112 that is arranged upstream of the first flavor source 221. More specifically, in the illustrated example, the flavor generating article 100 includes, in order from the tip side (i.e., the side opposite the mouthpiece), the tip plug portion 112, the flavor generating portion 220, a hollow tube portion 132, a hollow filter 240, and a filter plug 250. These five components are connected using a first tipping paper 280, an outer plug wrap 260, and a second tipping paper 270.

[0064] The airflow resistance in the longitudinal direction of each flavor-generating article 100, in other words, the airflow resistance over the entire length, is not particularly limited, but from the viewpoint of ease of smoking, it is preferable that the airflow resistance be 40 mmH ２ O or more 400mmH ２ It is preferable that the resistance is 0 or less. In this case, a comfortable inhalation resistance can be provided to the user. The airflow resistance is measured in accordance with the ISO standard method (ISO6565:2015) using, for example, a filter airflow resistance measuring device manufactured by Cerulean Co., Ltd. The airflow resistance refers to the air pressure difference between the first end face and the second end face when air is flowed at a predetermined air flow rate (17.5 cc / sec) from one end face (first end face) to the other end face (second end face) in a state where air does not pass through the side faces of the flavor-generating article 100. The unit is generally mmH.２ It is represented by O. It is known that the relationship between the airflow resistance and the length of a non-combustion heat-not-burn tobacco is proportional within the length range typically used (5 mm to 200 mm), and if the length is doubled, the airflow resistance of the non-combustion heat-not-burn tobacco doubles. From the same viewpoint as above, the airflow resistance when the ventilation hole vf is opened in the flavor-generating article 100 is 30 mmH ２ O or more 170mmH ２ It is preferably 0 or less.

[0065] The rod-shaped flavor generating article 100 preferably has a columnar shape that satisfies the requirement that the aspect ratio defined as follows be 1 or greater. Aspect ratio = h / w, where w is the width of the bottom surface of the columnar body (in this specification, this is the width of the bottom surface on the flavor generating section 220 side), and h is the height, and it is preferable that h≧w. In this specification, the long axis direction is defined as the direction indicated by h. Therefore, even if w≧h, the direction indicated by h will be referred to as the long axis direction for convenience. The shape of the bottom surface is not limited and may be a polygon, a rounded polygon, a circle, an ellipse, or the like. The width w is the diameter if the bottom surface is circular, the major axis if the bottom surface is elliptical, or the diameter of the circumscribing circle or the major axis of the circumscribing ellipse if the bottom surface is polygonal or rounded polygonal.

[0066] The length h of the flavor-generating article 100 in the major axis direction is not particularly limited, and is, for example, typically 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more, and typically 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less.

[0067] The width w of the bottom surface of the columnar body of flavor-generating article 100 is not particularly limited, and is, for example, typically 5 mm or more, preferably 5.5 mm or more, and typically 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less.

[0068] The ratio of the length of the hollow tube portion 132 and the filter segment (the total length of the hollow filter 240 and the filter plug 250) to the longitudinal length of the flavor-generating article 100 (hollow tube portion 132:filter segment) is not particularly limited, but from the viewpoint of the amount of flavor delivered and an appropriate aerosol temperature, it is usually 0.60 to 1.40:0.60 to 1.40, preferably 0.80 to 1.20:0.80 to 1.20, more preferably 0.85 to 1.15:0.85 to 1.15, even more preferably 0.90 to 1.10:0.90 to 1.10, and particularly preferably 0.95 to 1.05:0.95 to 1.05. By setting the length ratio of the hollow tube portion 132 and the filter segments (hollow filter 240 and filter plug 250) within the above range, it is possible to achieve a cooling effect, an effect of suppressing loss of generated steam and aerosol due to adhesion to the inner wall of the hollow tube portion 132, and an effect of providing a good and strong flavor by balancing the filter's air volume and flavor adjustment functions. In particular, if the hollow tube portion 132 is made longer, the aerosol and the like will be promoted to be atomized, resulting in a good flavor, but if it is too long, substances passing through will adhere to the inner wall.

[0069] The flavor generating unit 220 is disposed adjacent to and downstream of the tip plug portion 112. The flavor generating unit 220 includes a first flavor source 221 and a cigarette paper 222 around which the first flavor source 221 is wrapped. The flavor generating unit 220 may be configured in any known manner, but is typically configured such that the first flavor source 221 is wrapped in the cigarette paper 222. The first flavor source 221 is wrapped in the cigarette paper 222 so that the first flavor source 221 faces inward to form the flavor generating unit 220. The first flavor source 221 may include a tobacco filler. In addition, in this specification, dried tobacco products such as tobacco shreds, tobacco sheets, and tobacco granules, which will be described later, may be simply referred to as "dried tobacco leaf." The flavor generating unit 220 may also have a fitting portion for engaging with a heat source 40 for heating the tobacco product.

[0070] The flavor generating section 220, which is formed by wrapping the first flavor source 221 in the wrapping paper 222, preferably has a columnar shape, and in this case, the aspect ratio, which is expressed as the height in the major axis direction of the flavor generating section 220 to the width of the bottom surface of the flavor generating section 220, is preferably 1 or greater. The shape of the bottom surface is not limited and may be polygonal, rounded polygonal, circular, elliptical, etc. The width of the bottom surface is the diameter if the bottom surface is circular, the major axis if the bottom surface is elliptical, and the diameter of the circumscribing circle or the major axis of the circumscribing ellipse if the bottom surface is polygonal or rounded polygonal.

[0071] The length of the flavor generating section 220 in the longitudinal direction can be changed as appropriate to suit the size of the product, but is usually 10 mm or more, preferably 12 mm or more, and is usually 70 mm or less, preferably 50 mm or less, more preferably 30 mm or less, even more preferably 25 mm or less, and even more preferably 20 mm or less.

[0072] Furthermore, the ratio of the length of the flavor generating section 220 to the overall length in the longitudinal direction of the flavor generating article 100 is not particularly limited, but from the viewpoint of the balance between the delivery amount and the aerosol temperature, it is usually 10% or more, preferably 20% or more, and usually 80% or less, preferably 70% or less, more preferably 60% or less, even more preferably 50% or less, particularly preferably 45% or less, and most preferably 40% or less.

[0073] The content of dried tobacco leaves in the flavor generating section 220 is not particularly limited, but may be 150 mg / rod part or more and 800 mg / rod part or less, and preferably 200 mg / rod part or more and 600 mg / rod part or less.

[0074] First, a case where the tobacco filler contains tobacco shreds will be described. The material of the tobacco shreds contained in the tobacco filler is not particularly limited, and known materials such as lamina or ribs can be used. Alternatively, the tobacco shreds may be produced by grinding dried tobacco leaves to an average particle size of 20 μm or more and 200 μm or less to produce tobacco grounds, homogenizing the grounds, processing the homogenized material into a sheet, and then shredding the homogenized sheet. Furthermore, the tobacco shreds may be of the so-called strand type, in which a homogenized sheet having a length approximately equal to the longitudinal direction of the flavor generating section 220 is shredded approximately parallel to the longitudinal direction of the flavor generating section 220 and packed into the cigarette paper 222. Furthermore, the width of the tobacco shreds is preferably 0.5 mm or more and 2.0 mm or less in order to be packed into the cigarette paper 222.

[0075] Various types of tobacco can be used for the tobacco leaves used to prepare the shredded tobacco and homogenized sheets. Examples include flue-cured tobacco, burley, oriental tobacco, native tobacco, other Nicotiana tabacum varieties, Nicotiana rustica varieties, and mixtures thereof. Mixtures can be created by appropriately blending the above varieties to achieve the desired flavor. Details of the tobacco varieties are disclosed in the "Encyclopedia of Tobacco," published by the Tobacco Research Center on March 31, 2009. Several conventional methods are known for producing homogenized sheets, i.e., grinding tobacco leaves and processing them into homogenized sheets. The first method is to produce a paper-making sheet using a papermaking process. The second method involves mixing a suitable solvent, such as water, with ground tobacco leaves to homogenize them, then casting a thin layer of the homogenized mixture on a metal plate or metal belt and drying it to produce a cast sheet. The third method involves mixing a suitable solvent, such as water, with ground tobacco leaves to homogenize them, and extruding the mixture into a sheet to produce a rolled sheet. The types of the above-mentioned uniforming sheets are disclosed in detail in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0076] The moisture content of the tobacco filler is, for example, 10% by weight or more and 15% by weight or less, and preferably 11% by weight or more and 13% by weight or less, relative to the total weight of the tobacco filler. This moisture content suppresses the occurrence of stains on the surface of the tobacco and improves the suitability of the flavor generating unit 220 for rolling during production. There are no particular restrictions on the size or preparation method of the tobacco shreds contained in the tobacco filler. For example, dried tobacco leaves shredded to a width of 0.5 mm to 2.0 mm may be used for the tobacco filler. Furthermore, when using a ground homogenized sheet, dried tobacco leaves may be ground to an average particle size of approximately 20 μm to 200 μm, homogenized, processed into a sheet, and then shredded to a width of 0.5 mm to 2.0 mm may be used for the tobacco filler.

[0077] The tobacco filler may contain an aerosol base for generating an aerosol. The type of aerosol base is not particularly limited, and extracts from various natural products and / or their constituent components can be selected depending on the application. Examples of aerosol bases include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.

[0078] The content of the aerosol base material in the tobacco filler is not particularly limited, but from the viewpoint of generating sufficient aerosol and imparting a good flavor, it is usually 5% by weight or more, preferably 10% by weight or more, and usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less, of the total amount of the tobacco filler.

[0079] The tobacco filler may contain a flavoring. The type of the flavoring is not particularly limited, and examples of flavorings that can be used to impart a good flavor include acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, balsam of Peru oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, β-carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-Methionine, methylparaben ... - Citronellol, clary sage extract, cocoa, coffee, konjac oil, coriander oil, cumin aldehyde, davana oil, δ-decalactone, γ-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanoate, ethyl oleate, ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3,(5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract, gamma-heptalactone, gamma-hexalactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenylhexyl acetate, honey, 4-hydroxy-3-pentenoic acid, lauryl methylpropional Ingredients: methicone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, beta-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpeneless oil, licorice extract, linalool, linalyl acetate, robertia jasmine Orris root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, para-methoxybenzaldehyde, methyl 2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, honey, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentadeca Calactone, peppermint oil, petitgrain Paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclo Examples of the fragrance include (hexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), and ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5), with menthol being particularly preferred. These fragrances may be used alone or in combination of two or more.

[0080] The content of the flavoring in the tobacco filler is not particularly limited, but from the viewpoint of imparting a good flavor, it is usually 10,000 ppm or more, preferably 20,000 ppm or more, more preferably 25,000 ppm or more, and is usually 70,000 ppm or less, preferably 50,000 ppm or less, more preferably 40,000 ppm or less, and even more preferably 33,000 ppm or less.

[0081] The packing density of the tobacco packing is not particularly limited, but is usually 250 mg / cm from the viewpoint of ensuring the performance of the flavor generating article 100 and imparting a good flavor. ３ or more, preferably 300 mg / cm ３ or more, and is usually 400 mg / cm ３ or less, preferably 350 mg / cm ３ The following is the result.

[0082] The tobacco filler does not necessarily have to be formed by shredding as described above, but may instead be composed of a tobacco sheet filled into a filler (e.g., cigarette paper 222). The number of tobacco sheets may be one, or two or more. The tobacco sheet is folded, curved, or otherwise formed into any shape that can be filled into the filler, and then placed inside the filler. The tobacco filler may include at least one of tobacco shreds obtained by shredding tobacco raw materials such as tobacco leaves, tobacco shreds obtained by shredding a tobacco sheet, and a tobacco sheet.

[0083] The tobacco sheet may contain an aerosol base that generates an aerosol when heated. The aerosol base may be an aerosol source such as glycerin, propylene glycol, or a polyol such as 1,3-butanediol. The amount of the aerosol base added is preferably 5% by weight or more and 50% by weight or less, and more preferably 15% by weight or more and 25% by weight or less, based on the dry weight of the tobacco sheet.

[0084] Tobacco sheets can be appropriately manufactured by known methods such as papermaking, slurrying, rolling, etc. The above-mentioned homogenized sheet can also be used as the tobacco sheet. In the case of papermaking, tobacco sheets can be manufactured by a method including the following steps: 1) Dried tobacco leaves are roughly crushed, extracted with water, and separated into an aqueous extract and a residue. 2) The aqueous extract is dried and concentrated under reduced pressure. 3) Pulp is added to the residue, which is then fiberized in a refiner and then made into paper. 4) A concentrated aqueous extract is added to the paper-made sheet and dried to obtain a tobacco sheet. In this case, a step of removing some components such as nitrosamines may be added (see JP 2004-510422 A). In the case of the slurry method, tobacco sheets can be manufactured by a method including the following steps: 1) Water, pulp, and a binder are mixed with crushed tobacco leaves. 2) The mixture is thinly spread (cast) and dried. In this case, a step of removing some components such as nitrosamines may be added to a slurry containing a mixture of water, pulp, a binder, and crushed tobacco leaves by ultraviolet light or X-ray irradiation.

[0085] Alternatively, as described in WO 2014 / 104078, a nonwoven tobacco sheet can be used, which is produced by a method comprising the following steps: 1) mixing powdered tobacco leaves with a binder; 2) sandwiching the mixture between nonwoven fabrics; and 3) forming the layered product into a fixed shape by thermal welding to obtain a nonwoven tobacco sheet. The raw tobacco leaves used in each of the above methods can be of the same type as those described for the tobacco filler obtained by shredding.

[0086] The composition of the tobacco sheet is not particularly limited, but for example, the content of tobacco raw material (tobacco leaves) is preferably 50% by weight or more and 95% by weight or less relative to the total weight of the tobacco sheet. The tobacco sheet may also contain a binder, and examples of such binders include guar gum, xanthan gum, CMC (carboxymethylcellulose), and CMC-Na (sodium salt of carboxymethylcellulose). The amount of binder is preferably 1% by weight or more and 10% by weight or less relative to the total weight of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of additives include fillers such as pulp. In this embodiment, multiple tobacco sheets are used, and these tobacco sheets may all have the same composition or physical properties, or some or all of the tobacco sheets may have different compositions or physical properties.

[0087] An example of a tobacco sheet is a tobacco sheet in which one side of the tobacco sheet has a length approximately equal to the longitudinal direction of the filling material, and the tobacco sheet is folded multiple times along folds that are approximately parallel to the longitudinal direction of the filling material (so-called gathered sheet). In this case, the filling density of the tobacco sheet is usually 350 mg / cm because it is easier to increase the filling amount than when using shredded tobacco. ３ or more, preferably 400 mg / cm ３ and usually 700 mg / cm ３ or less, preferably 600 mg / cm ３ The following is the result.

[0088] The thickness of each tobacco sheet is not limited, but is preferably 150 μm or more and 1000 μm or less, and more preferably 200 μm or more and 600 μm or less, in view of the balance between heat transfer efficiency and strength. The thickness of each tobacco sheet may be the same or different.

[0089] The flavor generating section 220 may include dried tobacco leaves (dried tobacco leaves) and a flavor-containing material in which a flavor is encapsulated in a polysaccharide gel. The flavor-containing material is a material in which a flavor is encapsulated in a polysaccharide gel. By incorporating the flavor-containing material into the flavor generating section 220, variation in the amount of flavor delivered from puff to puff can be suppressed from the initial stage to the later stage of smoking, allowing for a continuous, satisfactory flavor. The inventors speculate that the reason for this is as follows. First, the flavor generating article 100 is inserted into the flavor inhaler 200 shown in FIG. 1 and preheated for a certain period before smoking begins. If a flavor is directly incorporated into the flavor generating section 220, the flavor volatilizes during preheating, and most of it is delivered in the initial stage of smoking, which is thought to result in an insufficient amount of flavor delivered in the later stage of smoking. In contrast, when a flavor-containing material is blended into the flavor generating section 220, the flavor is coated with a polysaccharide gel, which suppresses the evaporation of the flavor during preheating and gradually releases the flavor during smoking. Therefore, it is presumed that a sufficient amount of flavor can be delivered even in the later stages of smoking.

[0090] The components of the fragrance-containing material will be described below. The type of fragrance is not particularly limited, and examples of fragrances that can be used to impart a good fragrance note include acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, balsam of Peru oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, β-carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL- Citronellol, clary sage extract, cocoa, coffee, cognac oil, coriander oil, cumin aldehyde, davana oil, delta-decalactone, gamma-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanoate, ethyl oleate, ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3,(5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract, gamma-heptalactone, gamma-hexalactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenylhexyl acetate, honey, 4-hydroxy-3-pentenoic acid, lauryl methylpropional Ingredients: methicone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, beta-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpeneless oil, licorice extract, linalool, linalyl acetate, robertia jasmine Orris root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, para-methoxybenzaldehyde, methyl 2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, honey, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentadeca Calactone, peppermint oil, petitgrain Paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclo Examples of the fragrance include (hexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), and ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5), with menthol being particularly preferred. These fragrances may be used alone or in combination of two or more.

[0091] The content of the fragrance in the fragrance-containing material varies depending on the type of fragrance, the type of polysaccharide, etc., but is usually 18% by mass or more, preferably 50% by mass or more, more preferably 60% by mass or more, and is usually 90% by mass or less, preferably 80% by mass or less.

[0092] The type of polysaccharide is not particularly limited, but is preferably a single-component system of carrageenan, agar, gellan gum, tamarind gum, psyllium seed gum, or konjac glucomannan; or a composite system combining two or more components selected from the group consisting of carrageenan, locust bean gum, guar gum, agar, gellan gum, tamarind gum, xanthan gum, tara gum, konjac glucomannan, starch, cassia gum, and psyllium seed gum. These polysaccharides are preferred in that they gel simply by heating to 30°C to 90°C in an aqueous solution, eliminating the need for a gelling agent such as a metal chloride when preparing the flavor-containing material and preventing the generation of undesirable components, such as decomposition products of chlorides, in mainstream smoke during smoking.

[0093] The flavor-containing material may contain an emulsifier used to emulsify the raw materials during its preparation. The type of emulsifier is not particularly limited, and examples include lecithin, glycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, propylene glycol fatty acid ester, sucrose fatty acid ester, etc., with lecithin being preferred. These emulsifiers may be used alone or in combination of two or more.

[0094] The method for preparing the flavor-containing material is not particularly limited, and the material can be prepared by a method similar to a known method. Examples of known methods include those described in WO 2011 / 118040, JP 2013-099349, WO 2012 / 118034, etc. More specifically, the flavor-containing material can be prepared by a method including the following steps (i) and (ii): (i) a step of heating a mixture of polysaccharide and water to typically 30°C to 90°C, preferably 60°C to 90°C, to prepare an aqueous solution of the polysaccharide; and (ii) a step of adding a flavor and, if necessary, an emulsifier to the aqueous solution and kneading the mixture to obtain an emulsion slurry.

[0095] The content of the flavor-containing material in the flavor generating section 220 depends on the content of the flavor in the flavor-containing material, but is usually 1% by mass or more, preferably 5% by mass or more, and usually 20% by mass or less, preferably 10% by mass or less, relative to the dried tobacco leaf. The flavor generating section 220 contains a flavor-containing material such that the content of the flavor contained in the flavor-containing material is usually 1 mg or more, preferably 5 mg or more, more preferably 10 mg or more, and usually 30 mg or less, preferably 20 mg or less. By setting the content of the flavor-containing material in the flavor generating section 220 within the above range, it is possible not only to impart a good flavor note, but also to suppress variation in the amount of flavor delivered from the early to late stages of smoking, and to ensure a sufficient delivery amount in all of the early, middle, and late stages of smoking.

[0096] The manner in which the flavor-containing material is blended into the flavor-generating section 220 is not particularly limited, and the flavor-containing material may be disposed inside and / or outside the cigarette paper 222 that wraps the first flavor source 221, the cigarette paper 222 may be impregnated with the flavor-containing material, or the flavor-containing material may be blended into the tobacco filler. When the flavor-containing material is disposed inside and / or outside the cigarette paper 222 that wraps the first flavor source 221, the emulsion slurry may be applied to the cigarette paper 222, or the emulsion slurry may be sequentially cast onto a substrate and dried to form a flavor-containing sheet, and the first flavor source 221 and the cigarette paper may be wrapped around the flavor-containing material. The cigarette paper 222 impregnated with the flavor-containing material can be produced by impregnating the cigarette paper 222 with the emulsion slurry and drying it. Furthermore, when a flavor-containing material is incorporated into a tobacco filler, the emulsion slurry may be applied to or impregnated into dried tobacco leaves, or the flavor-containing sheet or its shredded or pulverized form may be mixed with dried tobacco.

[0097] The configuration of the cigarette paper 222 used in the flavor-generating article 100 is not particularly limited and can be any common configuration. Specifically, for example, the cigarette paper can be primarily made of pulp. Pulp can be wood pulp such as softwood pulp or hardwood pulp, flax pulp, hemp pulp, sisal pulp, esparto, or other pulps commonly used in cigarette papers for tobacco products. The cigarette paper can be obtained by papermaking using one or more of these pulps. These pulps can be used alone or in combination of multiple types in any ratio. Pulp configurations that can be used include chemical pulp obtained by kraft cooking, acidic, neutral, or alkaline sulfite cooking, soda cooking, etc., ground pulp, chemi-ground pulp, and thermomechanical pulp.

[0098] Using the above pulp, cigarette paper can be produced by adjusting and uniforming the texture during the papermaking process using a Fourdrinier paper machine, a cylinder paper machine, or a combined cylinder / short-cylinder paper machine. If necessary, a wet strength agent can be added to impart water resistance to the cigarette paper, or a sizing agent can be added to adjust the printing quality of the cigarette paper. Furthermore, internal papermaking aids and papermaking additives can be added to the cigarette paper. Internal papermaking aids can include, for example, aluminum sulfate, various anionic, cationic, nonionic, or amphoteric retention aids, drainage aids, and paper strength agents. Papermaking additives can include, for example, dyes, pH adjusters, antifoaming agents, pitch control agents, slime control agents, and the like.

[0099] The basis weight of the base paper for the cigarette paper is, for example, typically 30 gsm or more, preferably 35 gsm or more. Meanwhile, the basis weight is typically 70 gsm or less, preferably 50 gsm or less, and more preferably 45 gsm or less. The thickness of the cigarette paper having the above properties is not particularly limited, and is preferably 40 μm or more from the viewpoints of rigidity, breathability, and ease of adjustment during papermaking. It is also preferably 100 μm or less, preferably 75 μm or less, and more preferably 60 μm or less. The shape of the cigarette paper for the flavor-generating article 100 may be, for example, a square or rectangular. In the case of the cigarette paper 222 for wrapping the first flavor source 221 (for producing the flavor-generating section 220), the length of one side of the cigarette paper 222 may be approximately 12 mm to 70 mm, and the length of the other side (the side connected to the above side) may be 15 mm to 28 mm, preferably 22 mm to 24 mm, and more preferably approximately 23 mm.

[0100] When wrapping the first flavor source 221 in the wrapping paper 222 in a cylindrical shape, for example, one end of the wrapping paper 222 in the width direction and the other end on the opposite side may be overlapped by about 2 mm and glued together. This gives the wrapping paper 222 a cylindrical paper tube shape, into which the first flavor source 221 is filled. The size of the rectangular wrapping paper 222 can be determined depending on the size of the flavor-generating unit 220. In the case of wrapping paper that connects and wraps the flavor-generating unit 220 and other components adjacent to the flavor-generating unit 220, the length of one side may be 20 mm to 60 mm, and the length of the other side (the side connected to the above side) may be 15 mm to 28 mm.

[0101] In addition to the above-mentioned pulp, the cigarette paper may contain a filler. The content of the filler may be from 10% by weight to less than 60% by weight, and preferably from 15% by weight to 45% by weight, based on the total weight of the cigarette paper. When the basis weight of the cigarette paper is within the preferred range (from 35 gsm to 50 gsm), the content of the filler is preferably from 15% by weight to 45% by weight. Furthermore, when the basis weight of the cigarette paper is more than 35 gsm to 50 gsm, the content of the filler is preferably from 25% by weight to 45% by weight. As the filler, calcium carbonate, titanium dioxide, kaolin, etc. can be used, but calcium carbonate is preferably used from the viewpoint of enhancing flavor and whiteness, etc.

[0102] Various auxiliary agents other than the base paper and fillers may be added to the cigarette paper. For example, a water resistance improver can be added to the cigarette paper to improve water resistance. The water resistance improver may include a wet strength agent (WS agent) and a sizing agent. The wet strength agent may include, for example, urea-formaldehyde resin, melamine-formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Furthermore, the sizing agent may include, for example, rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a saponification degree of 90% or more. A paper strength agent may be added to the cigarette paper as an auxiliary agent. The paper strength agent may include, for example, polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, etc. In particular, it is known that the use of a very small amount of oxidized starch as an auxiliary agent in wrapping paper improves breathability (see, for example, JP 2017-218699 A).

[0103] A coating agent may be added to at least one of the front and back surfaces of the wrapping paper. 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. Examples of coating agents include alginic acid and its salts (e.g., sodium salts), polysaccharides such as pectin, cellulose derivatives such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, and nitrocellulose, starch and its derivatives (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch, and ester derivatives such as starch acetate, starch phosphate, and starch octenyl succinate).

[0104] As shown in Figures 8 and 9, the tip plug portion 112 includes a first filler 211 (corresponding to an example of a first member) and a first inner plug wrap 212 (corresponding to an example of a first packaging member) around which the first filler 211 is wrapped. As shown in Figure 9, the flavor-generating article 100 includes a first end 101 that is inserted into the flavor inhaler 200 and a second end 102 opposite the first end 101. The first filler 211 is disposed at the first end 101 of the flavor-generating article 100, upstream of the first flavor source 221. The first filler 211 functions as a tip plug. The first filler 211 is located at the tip of the flavor-generating article 100 and is configured to cover the end of the first flavor source 221. This prevents the first flavor source 221 from falling off the flavor-generating article 100.

[0105] As shown in FIG. 9 , the flavor-generating article 100 extends longitudinally along the central axis AX, with a first end 101 and a second end 102 formed at both ends along the longitudinal direction. Hereinafter, unless otherwise specified, the terms "radial direction" and "circumferential direction" refer to the radial direction and the circumferential direction of a rotating coordinate system centered on the central axis AX. The first inner plug wrap 212 preferably wraps the entire first filler material 211. Herein, "wrapping the entire first filler material 211" means wrapping at least the entire outer peripheral surface of the first filler material 211 centered on the central axis AX. More specifically, the first inner plug wrap 212 preferably extends longitudinally of the flavor-generating article 100 from a position upstream of the first flavor source 221 to the first end 101. In this case, the tip plug portion 112 can be efficiently manufactured by preparing a first filler material 211 that is longer than the tip plug portion 112 and is wrapped with the first inner plug wrap 212, and cutting the first filler material 211 approximately perpendicular to the central axis AX. The first inner plug wrap 212 may be configured to wrap around a portion of the outer circumferential surface of the first filler material 211.

[0106] Fig. 10 is a schematic cross-sectional view of the first inner plug wrap 212. As shown in Fig. 10, the first inner plug wrap 212 may have a metal layer 91 and a paper layer 92. In the flavor-generating article 100, the metal layer 91 may be disposed on the outside of the paper layer 92, or the metal layer 91 may be disposed on the inside of the paper layer 92.

[0107] As will be described in detail later, a second inner plug wrap 252 is disposed at the second end 102 opposite the first end 101 where the first inner plug wrap 212 is disposed. The second inner plug wrap 252 may have a different composition from the first inner plug wrap 212. The second inner plug wrap 252 may be configured not to include the metal layer 91. In this manner, the first inner plug wrap 212 may include at least one type of component different from the component included in the second inner plug wrap 252. This allows the upstream end and downstream end of the flavor-generating article 100 to be easily distinguishable. For example, if the first inner plug wrap 212 includes the metal layer 91, a user can visually recognize the metal layer 91 exposed at the end surface and thereby confirm that the end surface is the end surface of the first end 101. Alternatively, the metal layer 91 may cause the first end 101 to feel different from the second end 102, thereby enabling the user to identify the first end 101. The metal contained in the metal layer 91 is not particularly limited, but aluminum is preferable from the viewpoint of lightness, workability, and the like.

[0108] The inventors also found that wrapping the first flavor source 221 in aluminum foil increases the amount of electricity required to generate the flavor. In this embodiment, the first filler 211 of the tip plug portion 112 is wrapped in the first inner plug wrap 212 including the metal layer 91, and the first flavor source 221 is not covered with the metal layer 91. This makes it possible to suppress the increase in electricity required to generate the flavor compared to when the first flavor source 221 is wrapped in aluminum foil or the like.

[0109] The tensile strength of the metal layer 91 is preferably 30 N / 15 mm or more. If the tensile strength is low, the metal layer 91 may be difficult to process or may be prone to breakage when the user inserts the flavor generating article 100 into the flavor inhaler 200. The tensile strength of the metal layer 91 is preferably 40 N / 15 mm or less. If the tensile strength is high, the metal layer 91 needs to be thicker, making it difficult to make the flavor generating article 100 lighter and more compact. The tensile strength of the metal contained in the first inner plug wrap 212 is preferably 30 N / 15 mm or more and 40 N / 15 mm or less. This tensile strength is the maximum tensile load when a 15 mm wide metal layer 91 is stretched at a tension rate of 20 mm / min in accordance with JIS P8113.

[0110] The metal layer 91 is preferably a metal foil, which allows the flavor-generating article 100 to be lightweight and compact. The first inner plug wrap 212 is more preferably an aluminum-laminated paper or aluminum-metal-deposited paper. Aluminum-laminated paper and aluminum-metal-deposited paper are easily available, and allow the tip plug portion 112 to be manufactured efficiently.

[0111] From a similar perspective, the first inner plug wrap 212 may have a ceramic layer instead of or in addition to the metal layer 91. From the perspective of ease of processing, it is preferable that the first inner plug wrap 212 contains at least one of metal and ceramic. The first inner plug wrap 212 is preferably a flame-retardant sheet, which can suppress the inhalation of components produced by combustion.

[0112] The material of the paper layer 92 is not particularly limited, and any known wrapper for a tip plug can be used. The paper layer 92 may contain a filler such as calcium carbonate. The thickness of the first inner plug wrap 212 is not particularly limited, but is typically 20 μm to 140 μm, preferably 30 μm to 130 μm, and more preferably 30 μm to 120 μm. The basis weight of the first inner plug wrap 212 is not particularly limited, but is typically 20 gsm to 100 gsm, preferably 22 gsm to 95 gsm, and more preferably 23 gsm to 90 gsm. The first inner plug wrap 212 may be coated or uncoated, but is preferably coated with a desired material to provide functions other than strength and structural rigidity.

[0113] As an example of the first packaging member that wraps at least a portion of the first filler 211, a sheet without a paper layer, such as a metal sheet, may be placed around the first filler 211. The first inner plug wrap may be made of paper or the like that is known as a wrapper for tip plugs, and the sheet may be placed in addition to the first inner plug wrap. The sheet may include at least one type of material different from the material included in the second inner plug wrap 252. For example, the sheet may also include at least one of metal and ceramic, and preferably includes metal foil such as aluminum foil, and may be a flame-retardant sheet. The flavor-generating article 100 may include at least one paper layer on the outside of the sheet.

[0114] 8, the flavor-generating article 100 preferably has a downstream section 130 disposed downstream of the first flavor source 221. In this case, the downstream section 130 can cool and filter the vapor or aerosol generated in the first flavor source 221. Specifically, the downstream section 130 preferably includes a filter plug 250. This allows the filter plug 250 to cool and filter the vapor or aerosol generated in the flavor source.

[0115] The filter plug 250 is located at the second end 102, which is the end on the mouthpiece side of the flavor generating article 100. The filter plug 250 includes a second filler material 251 (corresponding to an example of a second member) and a second inner plug wrap 252 around which the second filler material 251 is wound. Therefore, the second filler material 251 is disposed at the second end 102 of the flavor generating article 100, downstream of the first flavor source 221. The filter material used for the second filler material 251 is not particularly limited as long as it has a general filter function. Typical filter functions include, for example, adjusting the amount of air mixed in when inhaling aerosols, reducing flavor, and reducing nicotine and tar, but the filter material used for the second filler material 251 does not need to have all of these functions. Furthermore, in electrically heated tobacco products, which tend to produce fewer components and have a lower tobacco filler filling rate than cigarette products, preventing the tobacco filler from falling out while suppressing filtering is also an important function. In this way, the second filling material 251 includes a filter, which allows adjustment of the amount of air and flavor during inhalation.

[0116] The cross section of the filter plug 250 perpendicular to the longitudinal direction is substantially circular. The diameter of the circle can be varied depending on the size of the product, but is typically 4.0 mm to 9.0 mm, preferably 4.5 mm to 8.5 mm, and more preferably 5.0 mm to 8.0 mm. If the cross section of the filter plug 250 is not circular, the diameter refers to the diameter of a circle having the same area as the cross section.

[0117] The circumferential length of the filter plug 250 in a cross section perpendicular to the longitudinal direction can be changed as appropriate to suit the size of the product, but is typically 14.0 mm or more and 27.0 mm or less, preferably 15.0 mm or more and 26.0 mm or less, and more preferably 16.0 mm or more and 25.0 mm or less.

[0118] The longitudinal length of the filter plug 250 can be changed as needed to suit the size of the product, but is typically 15 mm to 35 mm, preferably 17.5 mm to 32.5 mm, and more preferably 20.0 mm to 30.0 mm. The shape and dimensions of the filter medium used in the second filler 251 can be adjusted as needed so that the shape and dimensions of the filter plug 250 fall within the above ranges.

[0119] The filter medium constituting the second filler 251 of the filter plug 250 may be, for example, one manufactured by the manufacturing method described below, or a commercially available product. The form of the filter plug 250 is not particularly limited, and may be a plain filter including a single filter segment, or a multi-segment filter including multiple filter segments, such as a dual filter or triple filter.

[0120] The filter plug 250 can be manufactured by a known method. For example, when synthetic fibers such as cellulose acetate tow are used as the material for the second filler 251, the filter plug 250 can be manufactured by spinning a polymer solution containing a polymer and a solvent and then crimping the resulting polymer. For example, the method described in International Publication No. 2013 / 067511 can be used as this method. In manufacturing the filter plug 250, the airflow resistance and the additives to be added to the second filler 251 (such as known adsorbents, flavors (e.g., menthol), granular activated carbon, and flavor-retaining materials) can be appropriately designed.

[0121] The second filler 251 constituting the filter plug 250 is not particularly limited, and known forms may be employed. For example, cellulose acetate tow processed into a cylindrical shape can be used as the second filler 251. The single-filament fineness and total fineness of the cellulose acetate tow are not particularly limited. However, for a filter plug 250 with a circumference of 22 mm, the single-filament fineness is preferably 5 g / 9000 m to 12 g / 9000 m, and the total fineness is preferably 12,000 g / 9000 m to 35,000 g / 9000 m. Examples of cross-sectional shapes of the cellulose acetate tow fibers include circular, elliptical, Y-shaped, I-shaped, and R-shaped. In a filter filled with cellulose acetate tow, triacetin may be added in an amount of 5 wt % to 10 wt % based on the weight of the cellulose acetate tow to improve filter hardness. Moreover, instead of the acetate filter, a paper filter filled with sheet-shaped pulp paper may be used.

[0122] The density of the second filler 251 is not particularly limited, but is usually 0.10 g / cm ３ 0.25g / cm or more ３ or less, and 0.11 g / cm ３ 0.24g / cm or more ３ It is preferable that the density is 0.12 g / cm or less. ３ 0.23g / cm or more ３ More preferably, it is:

[0123] To improve strength and structural rigidity, the filter plug 250 may include a second inner plug wrap 252 (also called a wrapping paper, which is an example of a second packaging member) around which the second filler material 251 (described later) is wrapped. The second inner plug wrap 252 preferably wraps a portion or all of the second filler material 251. Here, "wrapping the entire second filler material 251" means wrapping at least the entire outer peripheral surface of the second filler material 251, centered on the central axis AX. As described above, to facilitate identification of the first end 101 and the second end 102, the second inner plug wrap 252 is preferably paper without a metal layer. The second inner plug wrap 252 may include one or more rows of adhesive-containing seams. The adhesive may include, but is not limited to, a vinyl acetate adhesive or a hot-melt adhesive. The hot-melt adhesive may further include polyvinyl alcohol. When the filter segment is made up of two or more segments, the second inner plug wrap 252 is preferably wound around these two or more segments.

[0124] The material of the second inner plug wrap 252 is not particularly limited, and known materials can be used. The material may contain a filler such as calcium carbonate. The thickness of the second inner plug wrap 252 is not particularly limited, and is typically 20 μm to 140 μm, preferably 30 μm to 130 μm, and more preferably 30 μm to 120 μm. The basis weight of the second inner plug wrap 252 is not particularly limited, and is typically 20 gsm to 100 gsm, preferably 22 gsm to 95 gsm, and more preferably 23 gsm to 90 gsm. The second inner plug wrap 252 may be coated or uncoated, but is preferably coated with a desired material to provide functions other than strength and structural rigidity.

[0125] 8 and 9, the hollow filter 240 and the filter plug 250 may be connected by, for example, an outer plug wrap 260. The outer plug wrap 260 may be, for example, a cylindrical piece of paper.

[0126] The second filler material 251 may include a crushable additive release container (e.g., a capsule) including a crushable outer shell such as gelatin. The form of the capsule (also referred to in the art as an "additive release container") is not particularly limited, and any known form may be employed. For example, a crushable additive release container including a crushable outer shell such as gelatin may be employed. In this case, when the capsule is broken by a tobacco product user before, during, or after use, it releases a liquid or substance (usually a flavoring agent) contained within the capsule, which is then transmitted to tobacco smoke while the tobacco product is being used, and to the surrounding environment after use.

[0127] The capsule form is not particularly limited, and may be, for example, a frangible capsule, preferably spherical in shape. The additive contained in the capsule may include any of the additives described above, and preferably includes flavorings and activated carbon. One or more materials that aid in filtering smoke may also be added as additives. The form of the additive is not particularly limited, and is typically liquid or solid. The use of capsules containing additives is well known in the art. Frangible capsules and methods for their manufacture are well known in the art. The flavoring may be, for example, menthol, spearmint, peppermint, fenugreek, clove, medium-chain triglycerides (MCT), or the like. The flavoring may be menthol, or a combination thereof.

[0128] In this embodiment, a flavoring may be added to the second filler material 251. By adding a flavoring to the second filler material 251, the amount of flavoring delivered during use is increased compared to conventional techniques in which flavoring is added to the tobacco filler that constitutes the tobacco rod. The degree of increase in the amount of flavoring delivered is further increased depending on the position of the ventilation holes provided in the hollow tube portion 132, which will be described later. The method of adding a flavoring to the second filler material 251 is not particularly limited, and it only needs to be added so that the flavoring is substantially uniformly dispersed in the second filler material 251 to which the flavoring is to be added. The amount of flavoring added to the second filler material 251 may be 10 to 100 volume % of the second filler material 251. The flavoring may be added to the second filler material 251 in advance before the filter segment is constructed, or after the filter cigarette is constructed.

[0129] The type of the fragrance is not particularly limited, and examples of fragrances that can be used from the viewpoint of imparting a good flavor include acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, Peru balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, β-carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-Methionine, methylparaben ... - Citronellol, clary sage extract, cocoa, coffee, konjac oil, coriander oil, cumin aldehyde, davana oil, δ-decalactone, γ-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanoate, ethyl oleate, ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3,(5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract, gamma-heptalactone, gamma-hexalactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenylhexyl acetate, honey, 4-hydroxy-3-pentenoic acid, lauryl methylpropional Ingredients: methicone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, beta-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, cola nut tincture, labdanum oil, lemon terpeneless oil, licorice extract, linalool, linalyl acetate, robertia jasmine Orris root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, para-methoxybenzaldehyde, methyl 2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, honey, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentadeca Calactone, peppermint oil, petitgrain Paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclo Examples of the fragrance include (hexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), and ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5), with menthol being particularly preferred. These fragrances may be used alone or in combination of two or more.

[0130] The filter plug 250 of this embodiment includes a second filler 251, and activated carbon may be added to at least a portion of the second filler 251. The amount of activated carbon added is 15.0 m2 per flavor-generating article 100, calculated as the specific surface area of ​​activated carbon × weight of activated carbon / cross-sectional area of ​​the second filler 251 in the direction perpendicular to the air flow direction. ２ / cm ２ Over 80.0m ２ / cm ２ or less. For convenience, the above-mentioned "specific surface area of ​​activated carbon × weight of activated carbon / cross-sectional area of ​​second filler 251 perpendicular to the airflow direction" may be expressed as "surface area of ​​activated carbon per unit cross-sectional area." This surface area of ​​activated carbon per unit cross-sectional area can be calculated based on the specific surface area of ​​activated carbon added to the second filler 251 of one flavor-generating article 100, the weight of the added activated carbon, and the cross-sectional area of ​​the second filler 251. Note that activated carbon may not be uniformly dispersed in the filter medium to which it is added, and therefore it is not required that the above range be satisfied in all cross-sections (cross-sections perpendicular to the airflow direction) of the filter medium.

[0131] In this embodiment, by having the surface area of ​​activated carbon per unit cross-sectional area within the above range, the components generated by heating can be delivered to the user in the desired amount, and the user can be given the desired flavor sensation. If the surface area of ​​activated carbon per unit cross-sectional area is smaller than the lower limit of the above range, the effect of adding activated carbon cannot be fully obtained. On the other hand, if the surface area of ​​activated carbon per unit cross-sectional area is larger than the upper limit of the above range, the components generated by heating will be reduced more than necessary. The surface area of ​​activated carbon per unit cross-sectional area is 17.0 m ２ / cm ２ More preferably, it is 35.0 m or more. ２ / cm ２ It is more preferable that the distance is 77.0 m or more. ２ / cm ２ More preferably, it is 73.0 m or less. ２ / cm ２ It is even more preferable that:

[0132] The surface area of ​​the activated carbon per unit cross-sectional area can be adjusted, for example, by adjusting the specific surface area of ​​the activated carbon, the amount of activated carbon added, and the cross-sectional area perpendicular to the airflow direction of the second filler 251. The calculation of the surface area of ​​the activated carbon per unit cross-sectional area is based on the filter medium to which activated carbon is added. If the filter plug 250 is composed of multiple filter mediums, the cross-sectional area and length of only the filter medium to which activated carbon is added are used as the basis.

[0133] Examples of activated carbon that can be used in this embodiment include those made from raw materials such as wood, bamboo, coconut shells, walnut shells, and coal. Also, examples of activated carbon that can be used in this embodiment include activated carbon with a BET specific surface area of ​​1100 m or more. ２ / g or more 1600m ２ / g or less, and preferably 1200m ２ / g or more 1500m ２ / g or less, and more preferably 1250m ２ / g or more 1380m ２The BET specific surface area can be determined by a nitrogen gas adsorption method (BET multipoint method).

[0134] The activated carbon usable in this embodiment may have a pore volume of 400 μL / g or more and 800 μL / g or less, more preferably 500 μL / g or more and 750 μL / g or less, and even more preferably 600 μL / g or more and 700 μL / g or less. The pore volume can be calculated from the maximum adsorption amount obtained using a nitrogen gas adsorption method.

[0135] In this embodiment, the amount of activated carbon added to the second filler 251 per unit length in the air passage direction is preferably 5 mg / cm to 50 mg / cm, more preferably 8 mg / cm to 40 mg / cm, and even more preferably 10 mg / cm to 35 mg / cm. In this embodiment, by setting the specific surface area of ​​the activated carbon and the amount of activated carbon added within the above ranges, the surface area of ​​the activated carbon per unit cross-sectional area can be adjusted as desired.

[0136] Furthermore, the activated carbon that can be used in this embodiment preferably has a cumulative 10% by volume particle diameter (particle diameter D10) of 250 μm or more and 1200 μm or less. Furthermore, the cumulative 50% by volume particle diameter (particle diameter D50) of the activated carbon particles is preferably 350 μm or more and 1500 μm or less. D10 and D50 are measured by a laser diffraction scattering method. An example of a suitable device for this measurement is the HORIBA Laser Diffraction / Scattering Particle Size Distribution Analyzer "LA-950." Powder is poured into the cell of this device together with pure water, and the particle diameter is detected based on the light scattering information of the particles. The measurement conditions for this device are as follows: Measurement mode: Manual flow-moh cell measurement Dispersion medium: Ion-exchanged water Dispersion method: Measurement after 1 minute of ultrasonic irradiation Refractive index: 1.92-0.00i (sample refractive index) / 1.33-0.00i (dispersion medium refractive index) Number of measurements: Measurements were performed twice with different samples

[0137] In this embodiment, the method of adding activated carbon to the second filler 251 is not particularly limited, and the activated carbon may be added so as to be dispersed substantially uniformly in the second filler 251 to which the activated carbon is added.

[0138] The filter plug 250 may be, for example, a commercially available product. The form of the filter plug 250 is not particularly limited and may be a filter including a single filter segment, or a multi-segment filter including multiple filter segments, such as a dual filter or triple filter. When the filter plug 250 is composed of a single filter segment, the second filler 251 to which activated carbon is added directly constitutes the filter plug 250. On the other hand, when the filter plug 250 is composed of multiple filter segments, the second filler 251, which is made of a filter medium to which activated carbon is added, is preferably positioned upstream of the filter medium constituting the mouth end. Alternatively, activated carbon may be added to the filter medium constituting the mouth end. When the filter segment is a multi-segment filter, the length of the filter segment used as the basis for the amount of activated carbon added is the length of the filter medium to which activated carbon is added. The amount of activated carbon added is, for example, 4.0 mg to 24.0 mg, preferably 4.5 mg to 23.0 mg, and more preferably 10.5 mg to 22.0 mg, in terms of weight relative to the entire filter segment.

[0139] The downstream section 130 may further include a hollow tube section 132 and a hollow filter 240. The hollow filter 240 is disposed adjacent to and downstream of the hollow tube section 132. The hollow filter 240 includes a filter medium 241 and a third inner plug wrap 242 around which the filter medium 241 is wound. The third inner plug wrap 242 may be the same as the plug wrap used in cigarettes. The third inner plug wrap 242 may be omitted. The hollow filter 240 may also be omitted.

[0140] The hollow filter 240 may include a filter medium 241 having one or more hollow portions and a third inner plug wrap 242 covering the filter medium 241. The hollow filter 240 functions to increase the strength of the downstream section 130. The filter medium 241 may be, for example, a rod with an inner diameter of 1.0 mm to 5.0 mm, densely packed with cellulose acetate fibers and hardened with a triacetin-containing plasticizer added at 6% to 20% by mass relative to the mass of the cellulose acetate. Because the filter medium 241 has a high fiber packing density, during inhalation, air and aerosols flow only through the hollow portions, with almost no flow within the filter medium 241. Because the filter medium 241 inside the hollow filter 240 is a fiber-packed layer, the feel from the outside during use is less likely to cause discomfort to the user.

[0141] The hollow filter 240 may include a third inner plug wrap 242 (wrap) around which the filter medium 241 is wrapped to improve strength and structural rigidity. The third inner plug wrap 242 may include one or more rows of adhesive seams. The type of adhesive is not particularly limited, but may include a vinyl acetate adhesive or a hot melt adhesive. The hot melt adhesive may include polyvinyl alcohol. Furthermore, when the hollow filter 240 is composed of two or more segments, the third inner plug wrap 242 is preferably wound around these two or more segments.

[0142] The material of the third inner plug wrap 242 is not particularly limited, and known materials can be used. The material may contain a filler such as calcium carbonate. The thickness of the third inner plug wrap 242 is not particularly limited, and is typically 20 μm to 140 μm, preferably 30 μm to 130 μm, and more preferably 30 μm to 120 μm. The basis weight of the third inner plug wrap 242 is not particularly limited, and is typically 20 gsm to 100 gsm, preferably 22 gsm to 95 gsm, and more preferably 23 gsm to 90 gsm. The third inner plug wrap 242 may be coated or uncoated, but is preferably coated with a desired material to provide functions other than strength and structural rigidity.

[0143] The hollow tube portion 132 is sandwiched adjacent to the flavor generating portion 220 and the hollow filter 240 or the filter plug 250 (if the hollow filter 240 is not present), and is typically a rod-shaped member having a cavity in a circumferential cross section of a cylinder or the like that is hollow (hollow). The longitudinal length of the hollow tube portion 132 can be appropriately changed according to the size of the product, but is typically 15 mm or more, preferably 20 mm or more, and typically 40 mm or less, preferably 35 mm or less, and more preferably 30 mm or less. By setting the longitudinal length of the hollow tube portion 132 at or above the lower limit, a sufficient cooling effect can be ensured to obtain a good flavor, while by setting it at or below the upper limit, loss due to adhesion of the generated steam and aerosol to the inner wall of the hollow tube portion 132 can be suppressed.

[0144] When a cooling sheet (e.g., a polylactic acid sheet packed in a gathered state) is filled into the hollow tube portion 132, the total surface area of ​​the hollow tube portion 132 is not particularly limited, and may be, for example, 300 mm ２ / mm or more 1000mm ２ This surface area is the surface area per length (mm) of the hollow tube portion 132 in the air flow direction. The total surface area of ​​the hollow tube portion 132 is 400 mm ２ / mm or more, and ２ / mm or more is more preferable, while 600 mm ２ / mm or less, and ２ / mm or less is more preferable.

[0145] It is desirable for hollow tube 132 to have an internal structure with a large total surface area. Thus, in a preferred embodiment, hollow tube 132 may be formed from a thin sheet of material that is wrinkled to form channels, and then pleated, gathered, and folded. The more folds or pleats there are in hollow tube 132, the greater the total surface area of ​​hollow tube 132. The thickness of the material from which hollow tube 132 is made is not particularly limited and may be, for example, from 5 μm to 500 μm, or from 10 μm to 250 μm.

[0146] As shown in Figures 8 and 9, the hollow tube portion 132 may be provided with circumferential and concentric air vents (vf) (also referred to in the art as ventilation filters). The presence of the air vents (vf) allows air to flow into the hollow tube portion 132 from the outside during use, lowering the temperature of the components and air flowing in from the flavor generating section 220. The air vents (vf) may be provided in an area 4 mm or more toward the hollow tube portion 132 from the boundary between the hollow tube portion 132 and the hollow filter 240 or the filter plug 250 (if the hollow filter 240 is not present). In this case, the air vents (vf) not only improve the cooling capacity of the hollow tube portion 132 but also suppress the retention of components generated by heating within the hollow tube portion 132, thereby improving the delivery amount of the components. In addition, when an aerosol base material is used in the flavor generating section 220, the vapor containing the aerosol base material and tobacco flavor components generated when the flavor generating article 100 is heated comes into contact with air from the outside, lowers in temperature, and liquefies, thereby facilitating the generation of the aerosol.

[0147] Furthermore, when the concentrically arranged ventilation holes vf are considered to be one hole group, the hole group may be one or two or more. When there are two or more hole groups, from the viewpoint of improving the delivery amount of components generated by heating, it is preferable that no hole group be provided in an area less than 4 mm toward the hollow tube portion 132 from the boundary between the hollow tube portion 132 and the hollow filter 240 or the filter plug 250 (when the hollow filter 240 is not present).

[0148] Furthermore, when the hollow tube portion 132 is wrapped with the second tipping paper 270, it is preferable that the second tipping paper 270 has an opening formed in a position directly above the ventilation hole vf formed in the hollow tube portion 132. When producing such a flavor-generating article 100, it is possible to prepare and wrap the second tipping paper 270 with an opening formed so as to overlap the ventilation hole vf, but from the viewpoint of ease of production, it is preferable to produce the flavor-generating article 100 using a hollow tube portion 132 that does not have the ventilation hole vf, and then drill a hole that passes through the hollow tube portion 132 and the second tipping paper 270 simultaneously.

[0149] From the viewpoint of improving the delivery of components generated by heating, the region where the vent holes vf are present is preferably a region of 4.5 mm or more, more preferably a region of 5 mm or more, and even more preferably a region of 5.5 mm or more from the boundary between the hollow tube portion 132 and the hollow filter 240 or filter plug 250 (when the hollow filter 240 is not present), toward the hollow tube portion 132. Furthermore, from the viewpoint of ensuring cooling function, the region where the vent holes vf are present is preferably a region of 15 mm or less, more preferably a region of 10 mm or less, and even more preferably a region of 7 mm or less from the boundary, toward the hollow tube portion 132.

[0150] From the viewpoint of improving the delivery of components generated by heating, the region where the air vent vf is present is preferably a region of 24 mm or more, preferably a region of 24.5 mm or more, preferably a region of 25 mm or more, and more preferably a region of 25.5 mm or more, from the mouth end (second end 102) of flavor generating article 100 toward hollow tube portion 132. Furthermore, from the viewpoint of ensuring cooling function, the region where the air vent vf is present is preferably a region of 35 mm or less, more preferably a region of 30 mm or less, and even more preferably a region of 27 mm or less, from the mouth end of flavor generating article 100 toward hollow tube portion 132.

[0151] Furthermore, when the axial length of the hollow tube portion 132 is 20 mm or more, the region where the air vents vf are present is preferably a region of 5 mm or more, more preferably a region of 10 mm or more, and even more preferably a region of 13 mm or more, from the viewpoint of ensuring cooling function, from the boundary between the hollow tube portion 132 and the flavor generating portion 220 toward the hollow tube portion 132. Furthermore, when the axial length of the hollow tube portion 132 is 20 mm or more, the region where the air vents vf are present is preferably a region of 16 mm or less, more preferably a region of 15.5 mm or less, even more preferably a region of 15 mm or less, and particularly preferably a region of 14.5 mm or less, from the boundary between the hollow tube portion 132 and the flavor generating portion 220, from the viewpoint of improving delivery of components generated by heating.

[0152] The ventilation holes (vf) can be arranged so that when inhaling at 17.5 ml / sec using an automatic smoking machine, the air inflow rate (the volumetric rate of air inflowing through the ventilation holes (vf) when the volumetric rate of air inhaled from the mouth end is taken as 100% by volume) is 10 to 90% by volume, preferably 50 to 80% by volume, and more preferably 55 to 75% by volume. This air inflow rate can be achieved, for example, by selecting the number of ventilation holes (vf) per opening group from the range of 5 to 50 and the diameter of the ventilation holes (vf) from the range of 0.1 to 0.5 mm. The air inflow rate can be measured using a roll measuring instrument (e.g., a SODIMAX d74 / SODIM manufactured by S.A.S.) in accordance with a method conforming to ISO 9512.

[0153] The configuration of the first tipping paper 280 is not particularly limited and can be any common configuration. Specifically, for example, the first tipping paper 280 can be primarily made of pulp. Pulp can be wood pulp such as softwood pulp or hardwood pulp, flax pulp, hemp pulp, sisal pulp, esparto, or other pulp commonly used in cigarette paper for tobacco products. The first tipping paper 280 can be obtained by papermaking one or more of these pulps. These pulps can be used alone or in any combination of multiple types in any ratio. Pulp types that can be used include chemical pulp obtained by kraft cooking, acidic, neutral, or alkaline sulfite cooking, soda cooking, ground pulp, chemi-ground pulp, and thermomechanical pulp. Commercially available products can also be used for the first tipping paper 280. The shape of the first tipping paper 280 is not particularly limited, and can be, for example, square or rectangular.

[0154] The basis weight of the first tipping paper 280 is not particularly limited, but is usually 20 gsm or more and 70 gsm or less, preferably 30 gsm or more and 50 gsm or less, and more preferably 34 gsm or more and 38 gsm or less. The thickness of the first tipping paper 280 is not particularly limited, but is usually 30 mm or more and 80 mm or less, preferably 33 mm or more and 50 mm or less, and more preferably 35 mm or more and 40 mm or less. The air permeability of the first tipping paper 280 is not particularly limited, but is usually 0 Coresta units or more and 30,000 Coresta units or less, and preferably more than 0 Coresta units and 10,000 Coresta units or less. The air permeability is a value measured in accordance with ISO 2965:2009, and is the value of the air permeability of an area of ​​1 cm per minute when the differential pressure between both sides of the paper is 1 kPa. ２ Flow rate of gas passing through (cm ３ 1 C.U. is expressed as cm under 1 kPa. ３ / (min cm ２ )

[0155] The first tipping paper 280 may contain a filler. Examples of fillers 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, and gypsum. It is preferable that the first tipping paper 280 contains calcium carbonate, particularly from the viewpoints of improving whiteness and opacity and increasing the heating rate. These fillers may be used alone or in combination of two or more.

[0156] Various auxiliary agents may be added to the first tipping paper 280. The first tipping paper 280 may include, for example, a water resistance improver. The water resistance improver may include a wet strength agent (WS agent) and a sizing agent. The wet strength agent may include, for example, urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Furthermore, the sizing agent may include, for example, rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a saponification degree of 90% or more.

[0157] A coating agent may be added to at least one of the front and back surfaces of the first tipping paper 280. 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. As described above, from the perspective of avoiding the increase in power consumption that would result from wrapping the first flavor source 221 in aluminum foil, it is preferable that the first tipping paper 280 is not aluminum-laminated paper or aluminum-deposited paper.

[0158] The configuration of the second tipping paper 270 is not particularly limited and can be any common configuration. Specifically, for example, the second tipping paper 270 can be primarily made of pulp. Pulp can be wood pulp, such as softwood pulp or hardwood pulp, or pulp typically used in cigarette paper for tobacco products, such as flax pulp, hemp pulp, sisal pulp, or esparto. The second tipping paper 270 can be obtained by papermaking one or more of these pulps. These pulps can be used alone or in any combination of multiple types in any ratio. Pulp types that can be used include chemical pulp produced by kraft cooking, acidic, neutral, or alkaline sulfite cooking, and soda cooking, ground pulp, chemi-ground pulp, and thermomechanical pulp. Commercially available products can also be used for the second tipping paper 270. The shape of the second tipping paper 270 is not particularly limited and may be, for example, a square or a rectangle. The flavor generating article 100 may have one sheet of second tipping paper 270 or multiple sheets of second tipping paper 270.

[0159] The basis weight of the second tipping paper 270 is not particularly limited, but is usually 32 gsm or more and 40 gsm or less, preferably 33 gsm or more and 39 gsm or less, and more preferably 34 gsm or more and 38 gsm or less. The air permeability of the second tipping paper 270 is not particularly limited, but is usually 0 Coresta units or more and 30,000 Coresta units or less, and preferably more than 0 Coresta units and 10,000 Coresta units or less. The air permeability is a value measured in accordance with ISO 2965:2009, and is the value of the air permeability of an area of ​​1 cm per minute when the differential pressure between both sides of the paper is 1 kPa. ２ Flow rate of gas passing through (cm ３ 1 C.U. is expressed as cm under 1 kPa. ３ / (min cm ２ )

[0160] The second tipping paper 270 may contain a filler. Examples of fillers 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, and gypsum. It is preferable that the second tipping paper 270 contains calcium carbonate, particularly from the viewpoints of improving whiteness and opacity and increasing the heating rate. These fillers may be used alone or in combination of two or more.

[0161] Various auxiliary agents may be added to the second tipping paper 270. The second tipping paper 270 may contain, for example, a water resistance improver. The water resistance improver may include a wet strength agent (WS agent) and a sizing agent. The wet strength agent may include, for example, urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Furthermore, the sizing agent may be, for example, rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), or highly saponified polyvinyl alcohol with a saponification degree of 90% or more.

[0162] A coating agent may be added to at least one of the front and back surfaces of the second tipping paper 270. 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.

[0163] A portion of the outer surface of the second tipping paper 270 may be covered with a lip release material. The lip release material refers to a material that helps a user easily separate the second tipping paper 270 from their lips without causing substantial adhesion when they hold the mouthpiece of the flavor-generating article 100 between their mouths. The lip release material may include, for example, ethyl cellulose or methyl cellulose. For example, the outer surface of the second tipping paper 270 may be coated with the lip release material by applying an ethyl cellulose- or methyl cellulose-based ink to the outer surface of the second tipping paper 270. In this embodiment, the lip release material is provided at least in a predetermined mouthpiece region that comes into contact with the user's lips when the user holds the mouthpiece in their mouth. More specifically, the lip release material may be provided on the outer surface of the second tipping paper 270 between the mouthpiece end (the end of the filter plug 250) and the vent hole vf.

[0164] Next, the connection manner of each element constituting the flavor-generating article 100 will be described. In FIG. 8 , gaps are provided between the elements to make the connection easier to see. However, in an actual flavor-generating article 100, the elements are adjacent to each other without any gaps, as shown in FIG. 9 . In the flavor-generating article 100 shown in FIG. 8 , the five elements are connected using a first tipping paper 280, an outer plug wrap 260, and a second tipping paper 270. Specifically, as shown in FIG. 8 , the first tipping paper 280 connects the tip plug portion 112, the flavor-generating portion 220, and the hollow tube portion 132. Here, the first tipping paper 280 is wrapped around the tip plug portion 112 and the flavor-generating portion 220 in their entirety, and a portion of the hollow tube portion 132 in their entirety. This connected body is referred to as a first connected body 285. The outer plug wrap 260 connects the hollow filter 240 and the filter plug 250 in their entirety. This connector is referred to as the second connector 265. Furthermore, the second tipping paper 270 connects the first connector 285 and the second connector 265. Here, the second tipping paper 270 covers the entire second connector 265 and a portion of the first connector 285, leaving the first connector 285 exposed at the upstream end. In the example shown in FIG. 8 , the first tipping paper 280 does not cover the hollow tube portion 132 to its downstream end, leaving the hollow tube portion 132 exposed at its downstream end. However, the first tipping paper 280 may cover the hollow tube portion 132 to its downstream end. In this case, the first tipping paper 280 preferably has an opening located directly above the air vent vf provided in the hollow tube portion 132. As a result, the air vent vf is preferably provided so as to penetrate the second tipping paper 270, the first tipping paper 280, and the hollow tube portion 132.

[0165] As described above, the flavor generating article 100 may have a first tipping paper 280 on the outside of the first inner plug wrap 212. The flavor generating article 100 may have an outer plug wrap 260 or a second tipping paper 270 on the outside of the second inner plug wrap 252. Thus, from the perspective of firmly connecting multiple portions of the flavor generating article 100, the flavor generating article 100 may have at least one paper layer on the outside of at least one of the first inner plug wrap 212 and the second inner plug wrap 252.

[0166] FIG. 11 is an exploded perspective view of a flavor generating article 100 according to another embodiment. The flavor generating article 100 shown in FIG. 11 differs from the flavor generating article 100 shown in FIGS. 8 and 9 only in the manner of connection. In the flavor generating article 100 shown in FIG. 11, five components are connected using a first tipping paper 280, an outer plug wrap 260, and a second tipping paper 270. Specifically, as shown in FIG. 11, the first tipping paper 280 connects the tip plug portion 112 and the flavor generating portion 220 by wrapping them together so as to cover their entirety. This connected body is referred to as a first connected body 285. In the example shown in FIG. 11, the outer plug wrap 260 connects the hollow filter 240 and the filter plug 250 by wrapping them together so as to cover their entirety. This connected body is referred to as a second connected body 265. Furthermore, the second tipping paper 270 connects the first connector 285, the hollow tube portion 132, and the second connector 265. Here, the second tipping paper 270 covers the entire hollow tube portion 132 and the second connector 265 and a portion of the first connector 285, leaving the first connector 285 exposed at the upstream end. Five components may be connected in the configuration shown in Fig. 11. Note that in Fig. 11, the first tipping paper 280 covers the downstream end of the flavor generating section 220, but it may not cover the downstream end of the flavor generating section 220, leaving the flavor generating section 220 exposed at the downstream end.

[0167] As shown in Fig. 1 , when the flavor generating article 100 is properly inserted into the chamber 50 of the flavor inhaler 200, a portion of the flavor generating article 100 may be exposed to the outside of the flavor inhaler 200. Specifically, in the state shown in Fig. 1 , all or a portion of the second connecting body 265 shown in Fig. 8 or 11 may be exposed to the outside of the flavor inhaler 200. Furthermore, in the state shown in Fig. 1 , a portion of the hollow tube portion 132 shown in Fig. 8 or 11 may be exposed to the outside of the flavor inhaler 200. In this case, the air vent vf formed in the hollow tube portion 132 may be exposed to the outside of the flavor inhaler 200, or may be located inside the flavor inhaler 200 (upstream of the opening 210 through which the flavor generating article 100 is inserted). It is preferable that the air vent vf formed in the hollow tube portion 132 be located inside the flavor inhaler 200, since this makes it less likely for the air vent vf to be blocked by the user.

[0168] The following describes the airflow resistance, hardness, etc. of each segment of flavor-generating article 100. As shown in Figure 9, flavor-generating article 100 includes a first segment 11, a flavor-generating segment 12, a cooling segment 13, and a second segment 14.

[0169] The first segment 11, the flavor-generating segment 12, the cooling segment 13, and the second segment 14 are arranged in this order from the first end 101 to the second end 102. The first segment 11 has a tip plug portion 112. The flavor-generating segment 12 has a flavor-generating portion 220. The cooling segment 13 has a hollow tube portion 132. The second segment 14 includes a filter plug 250 arranged on the second end 102 side and a hollow filter 240 arranged on the first end 101 side. Note that the position of the filter plug 250 is not limited to the position shown in FIG. 9 ; for example, the positions of the filter plug 250 and the hollow filter 240 may be interchanged. Furthermore, in the flavor-generating article 100 shown in FIG. 9 , the hollow filter 240 may be omitted, or the second segment 14 may include three or more filters.

[0170] When using the flavor-generating article 100 to inhale flavor, the first end 101 is inserted into the chamber 50, and the flavor-generating article 100 is positioned at a desired position in the chamber 50. Here, the desired position is a position where the flavor-generating segment 12 can be heated, for example, a position where the heater constituting the heating source 40 overlaps with the flavor-generating segment 12 in the longitudinal direction. Thereafter, the flavor-generating segment 12 is heated, and the user inhales from the second end 102.

[0171] In the externally heated flavor inhaler 200 shown in the figure, it is preferable to closely contact the heat source 40 and the flavor generating article 100 to improve heating efficiency. Therefore, as described above, it is preferable to insert the flavor generating article 100 into a chamber 50 having an inner diameter narrower than the outer diameter of the flavor generating article 100. In this case, there is a risk that the paper near the first end 101 of the flavor generating article 100 may tear due to contact with the inner wall of the chamber 50. To address this issue, the first tipping paper 280 may be made of aluminum-laminated paper or the like to increase its strength and make it less likely to tear. However, since the first tipping paper 280 covers the first flavor source 221, using aluminum-laminated paper or the like increases power consumption during heating, as described above. Therefore, as in the present embodiment, it is preferable to reduce this risk by using a thin, flexible, and strong first inner plug wrap 212 such as aluminum-laminated paper. It is also preferable to make only the first end 101 side of the first tipping paper 280 aluminum-laminated paper or the like to make it less likely to tear.

[0172] The positional relationship between the flavor generating article 100 and the flavor inhaler 200 to which the flavor generating article 100 is applied will be described. Fig. 12 is an enlarged cross-sectional view showing the atomizing unit 30 and the control unit 80 when the flavor generating article 100 is accommodated at a desired position in the flavor inhaler 200. Note that Fig. 12 shows the flavor generating article 100 in a simplified form. When the flavor generating article 100 is accommodated at a desired position in the flavor inhaler 200, the first flavor source 221 has, in the longitudinal direction of the flavor generating article 100, a first portion 122 that overlaps with the heat source 40 of the flavor inhaler 200 and a second portion 123 that does not overlap with the heat source 40 of the flavor inhaler 200. The first portion 122 is directly heated by the heat source 40 to generate vapor or aerosol, and the second portion 123 is heated by heat transfer from the heat source 40 to generate vapor or aerosol. Specifically, the second portion 123 is heated by heat transfer from the first portion 122 that was heated earlier, and by heat transfer from components such as the chamber 50 of the flavor inhaler 200 that are heated by the heating source 40.

[0173] Therefore, by setting the longitudinal length of the first portion 122 to be 40% to 60% of the longitudinal length of the first flavor source 221 and to be 10 mm or less, vapor or aerosol can also be generated from the second portion 123, so that the desired amount of vapor can be ensured even when the length of the heating source 40 is shorter than the length of the first flavor source 221. Furthermore, since the second portion 123 is heated later than the first portion 122 and vapor or aerosol is generated even during the latter part of the puffing action, stable delivery can be maintained during use of the flavor inhaler 200.

[0174] 12 , the longitudinal length of the heat source 40 overlapping the first portion 122 is the same as the longitudinal length of the first portion 122, is 40% to 60% of the longitudinal length of the first flavor source 221, and is 10 mm or less. By making the heat source 40 shorter than the overall length of the first flavor source 221, the power consumption of the flavor inhaler 200 can be reduced.

[0175] 12 , the first portion 122 includes the downstream end of the first flavor source 221. That is, the first flavor source 221 is composed of the first portion 122 arranged on the upstream side and the second portion 123 arranged on the downstream side, and the second portion 123 does not exist downstream of the first portion 122. Therefore, it is possible to prevent the vapor or aerosol generated in the first flavor source 221 from condensing in the second portion 123, which is not directly heated by the heating source 40.

[0176] The first segment 11 is a segment located on the first end 101 side of the flavor-generating segment 12. The first segment 11 preferably extends from the first end 101 to the end of the flavor-generating segment 12 on the first end 101 side. The first segment 11 includes a tip plug portion 112 including a first filler 211 and a first inner plug wrap 212. The first segment 11 preferably does not have a hole or slit for inserting a heater such as a pin-type heater. This reduces the risk of steam leaking from the first segment 11 when using the flavor-generating article 100 with an externally heated flavor inhaler 200. Furthermore, if a hole or slit is provided in the center of the end face of the first segment 11, the introduction of air near the center of the first segment 11, which is not directly heated, may reduce the amount of flavor component delivered, especially in the initial heating stage. However, this reduces this risk.

[0177] Hereinafter, when a segment is "solid," this includes the case where the space connecting the first end 101 and the second end 102 of the segment is filled with a filler material that allows air to pass through. Therefore, the filler material may be made of a fibrous or porous material. Furthermore, when a segment is "filled," this means that the filler material is arranged in the segment to the extent that it generates airflow resistance.

[0178] The tip plug portion 112 constituting the first segment 11 is preferably solid. In the first segment 11, a space connecting the first end 101 and the second end 102 of the first segment 11 is filled with a first filler material 211. This reduces the risk of vapor leaking from the first segment 11 and the risk of a decrease in the amount of flavor component delivered, as described above.

[0179] 13 is a cross-sectional view taken along line b-b in FIG. 9 , showing a transverse cross-section of the first segment 11 perpendicular to the longitudinal axis. In the first segment 11, the inside of the cylindrical first inner plug wrap 212 forms an internal space SP1 that connects the first end 101 and the second end 102 of the first segment 11. A first filler material 211 is filled in the internal space SP1. By filling the first segment 11 with the first filler material 211, the first segment 11 closes the internal space SP1 and prevents the first flavor source 221 and other components disposed in the flavor generating segment 12 from falling out of the first end 101.

[0180] Hereinafter, the airflow resistance per segment of the first segment 11 will be referred to as the "first airflow resistance," and the airflow resistance per segment of the second segment 14 will be referred to as the "second airflow resistance." The first airflow resistance may be lower than the second airflow resistance. Here, the airflow resistance is measured in accordance with the ISO standard method (ISO 6565:2015) using, for example, a filter airflow resistance measuring device manufactured by Cerulean. The airflow resistance refers to the air pressure difference between the first end face and the second end face when air is flowed at a predetermined air flow rate (17.5 cc / min) from one end face (first end face) to the other end face (second end face) without air permeation through the side of the object.

[0181] If the first airflow resistance is high, the second segment 14 including the filter plug 250 and the flavor-generating segment 12 including cut tobacco or the like may also have relatively high airflow resistances, resulting in an excessively high airflow resistance for the entire flavor-generating article 100, making it difficult for the user to inhale. In this case, if an attempt is made to lower the airflow resistance for the entire flavor-generating article 100 by lowering the second airflow resistance of the second segment 14, it may become difficult to adjust the filtering capacity of the filter disposed in the second segment 14. If the first airflow resistance is lower than the second airflow resistance, the occurrence of these problems can be suppressed. Note that the first airflow resistance may be higher than the second airflow resistance.

[0182] The first air resistance is 50 mmH ２ Preferably 0 or less, 40 mmH ２ 0 or less is more preferable, and 30 mmH ２ 0 or less is more preferable, and 20 mmH ２ A value of 0 or less is even more preferable. If the first airflow resistance is small, it becomes easier for the user to inhale. If the first airflow resistance is too small, there is an increased risk that steam will leak from the first segment 11, or that air will be introduced into parts of the first segment 11 that are not directly heated, reducing the amount of flavor components delivered at the initial stage of heating, etc. From this perspective, the first airflow resistance is set to 0 mmH ２ Larger than O, 10mmH ２ In view of the above, the first airflow resistance is preferably 0 mmH ２ Larger than O, 50mmH ２ It is preferably 0 or less.

[0183] The ratio of the first airflow resistance to the airflow resistance of the entire length of the flavor generating article 100 is preferably 30% or less, and more preferably 25% or less. A low ratio makes it easier to adjust the amount of the first flavor source 221 and the filtering capacity of the filter plug 250 or the like disposed in the second segment 14. Hereinafter, the term "total length" refers to the length along the longitudinal direction of the flavor generating article 100.

[0184] The first filler 211 of the first segment 11 preferably contains at least one of cellulose acetate, paper, and nonwoven fabric. This allows the first segment 11 to be easily manufactured while adjusting the first airflow resistance. From the same perspective and from the perspective of environmental protection, it is more preferable that the first filler 211 contains paper. The paper contained in the first filler 211 is preferably filled after creases are formed in the sheet by crimping or the like. Here, crimping is a process in which creases and irregularities are formed in the sheet by passing it between multiple rollers, which can change the hardness and airflow resistance of the sheet.

[0185] The sheet-like first filler 211 may be folded and radially arranged so as to extend back and forth in the radial direction. In this manner, the first filler 211 may be formed from a corrugated sheet folded in the direction of the waves. This sheet is preferably paper. The first filler 211 is formed by folding such a corrugated sheet in the direction of the waves to form a cylindrical shape as a whole. In this case, the first filler 211 may have a plurality of air flow passages extending in the length direction of the first filler 211, extending from the upstream end to the downstream end. Alternatively, the sheet-like first filler 211 may be folded with a plurality of creases extending in the length direction formed at random positions and then arranged in the first segment 11. The sheet-like first filler 211 may be folded or rolled in any manner and then arranged in the first segment 11. The method for filling the first segment 11 with the first filler material 211 is not particularly limited, and for example, nonwoven fabric cut to an arbitrary size may be stuffed inside the first inner plug wrap 212.

[0186] The paper used as a paper filter for a smoking article can be used as the first filler material 211. The paper used as the first filler material 211 has a thickness of, for example, 20 μm or more and 1500 μm or less, and a basis weight of, for example, 20 g / m ２ 50g / m or more ２The paper as the first filler 211 preferably has a rectangular shape, in which case one side has a length approximately equal to the length of the tip plug portion 112, and the other side can have a length of 100 mm or more and 300 mm or less. Although the thickness, basis weight, and size of the paper used as the first filler 211 have been described, these values ​​refer to the values ​​for the paper before it is subjected to a shaping process (e.g., a pleating process, etc.). If the first filler 211 is made of a material other than paper and has a sheet shape, such first filler 211 can have the same thickness and size as paper.

[0187] The first filler 211 may include at least one of the second flavor source 215 and the aerosol source. This allows for the delivery of more flavor to the user, or for the time period during which the flavor is generated from the first flavor source 221 and the time period during which the flavor is generated from the second flavor source 215 to be adjusted to adjust the change in flavor over time. The second flavor source 215 is not particularly limited and may include an extract from a plant material such as tobacco, crushed plant material, or the flavorings usable in the first flavor source 221 described above. The aerosol source is not particularly limited and may include a polyol such as glycerin, propylene glycol, or 1,3-butanediol. Note that the first filler 211 does not necessarily have to include a flavor source. In this embodiment, because the first inner plug wrap 212 has a layer other than paper, such as the metal layer 91, even if the first filler 211 includes the second flavor source 215 or the aerosol source, it is possible to suppress staining caused by these components seeping out onto the surface of the flavor-generating article 100. Furthermore, if the first inner plug wrap 212 has a highly thermally conductive layer such as the metal layer 91, the second flavor source 215 can be efficiently heated by heat conduction from the vicinity of the heat source 40.

[0188] FIG. 14 is a schematic diagram showing a method for measuring the hardness index, which is an index showing the hardness of each segment and the flavor-generating article 100. In this embodiment, the following diameter ratio is used as the hardness index. In this measurement, a load equivalent to a weight of 300 g is applied to the measurement object S1 perpendicularly in the direction (longitudinal direction) from the first end 101 side to the second end 102 side. The pressure application time is 10 seconds. In FIG. 14 , arrow A10 schematically shows the point where a load is applied to the measurement object S1 placed on a horizontal surface, perpendicularly to the central axis AX extending in the longitudinal direction. This measurement is performed using a Sodim-H hardness module from Körber Technologies GmbH or the like. The arithmetic mean diameter of the entire circumference of the measurement object S1 about the central axis AX before the load is applied is defined as the average diameter D1. The smallest diameter after the load is applied is defined as the minimum diameter D2. The diameter ratio is defined as the ratio of the minimum diameter D2 to the average diameter D1. The higher the diameter ratio, the smaller the deformation under load and the harder the measurement object S1 is. The hardness of each of the first segment 11, the flavor-generating segment 12, the cooling segment 13, and the second segment 14 may be measured while they are contained in the flavor-generating article 100, or may be measured separately.

[0189] Hereinafter, the diameter ratio of the first segment 11 will be referred to as the "first diameter ratio." The first diameter ratio is preferably 70% or more, and more preferably 80% or more. If the first diameter ratio is too low, the first segment 11 will be too soft, making it difficult for the user to grip, and handling during production will be difficult, reducing the productivity of the flavor-generating article 100. The first diameter ratio is preferably 90% or less, and more preferably 85% or less. If the first diameter ratio is too high, a hard first segment 11 will be produced, making processing during production difficult and reducing the productivity of the flavor-generating article 100. In view of the above, the first diameter ratio is preferably 70% or more and 90% or less.

[0190] The diameter ratio of second segment 14 is referred to as the second diameter ratio. The ratio of the second diameter ratio to the first diameter ratio is preferably 1 or greater and 1.2 or less. This makes it possible to make second end 102, which forms the mouthpiece, relatively hard to facilitate inhalation by the user, while also appropriately adjusting the ease of gripping or productivity of flavor-generating article 100.

[0191] The ratio of the diameter ratio of the flavor-generating segment 12 to the first diameter ratio can be 0.8 or more and 1.4 or less, thereby preventing the difference in hardness between the first segment 11 and the flavor-generating segment 12 from being too large, and further suppressing a decrease in productivity of the flavor-generating article 100.

[0192] The total length of the first segment 11 is preferably 10 mm or less, and more preferably 8 mm or less. If the first segment 11 is short, the flavor generating article 100 can be configured compactly. If the first segment 11 is too short, it becomes difficult to manufacture the first segment 11 or connect it to other segments, so the total length of the first segment 11 is preferably 5 mm or more. In view of the above, the total length of the first segment 11 is preferably 5 mm or more and 10 mm or less. The tip plug portion 112 constituting the first segment 11 can be manufactured to a predetermined length and then cut to any desired length.

[0193] As shown in FIG. 9 , the flavor generating segment 12 has a first flavor source 221 and a tubular cigarette paper 222 that covers the first flavor source 221. The first flavor source 221 is preferably filled in a space that connects the first end 101 and the second end 102 of the flavor generating segment 12. For example, a tobacco filler such as tobacco shreds or a tobacco sheet may be filled in the flavor generating segment 12. When the first flavor source 221 is in sheet form, the first flavor source 221 may be folded or concentrically disposed around the central axis AX. The filling method is not particularly limited as long as the flavor generating segment 12 can be formed with the desired airflow resistance. The flavor generating segment 12 is preferably solid.

[0194] The airflow resistance per segment of the flavor generating segment 12 is 10 mmH ２0 or more is preferable, 15 mmH ２ 0 or more is more preferable. When the airflow resistance is high, more first flavor sources 221 can be arranged in the flavor generating segment 120. If the airflow resistance is too high, it becomes difficult for the user to inhale. Therefore, the airflow resistance is set to 50 mmH or less. ２ It is preferable that the pressure is 40 mmH or less. ２ It is more preferable that the pressure is 30 mmH or less. ２ In view of the above, the airflow resistance is preferably 10 mmH or less. ２ O or more 50mmH ２ It is preferably 0 or less.

[0195] The diameter ratio of the flavor-generating segment 12 is preferably 70% or more and 95% or less from the viewpoint of ease of gripping the flavor-generating article 100 and productivity during production.

[0196] The cooling segment 13 is composed of the above-mentioned hollow tube portion 132. The ventilation hole vf is a hole for promoting the inflow of air from the outside when the user inhales, and this inflow of air cools the vapor or aerosol generated in the first flavor source 221, etc. By having the cooling segment 13, which is disposed between the flavor-generating segment 12 and the second segment 14 and cools the vapor or aerosol generated in the flavor-generating segment 12, the flavor-generating article 100 can deliver flavor components to the user at an appropriate temperature.

[0197] The second segment 14 is a segment disposed on the second end 102 side of the flavor generating segment 12. The second segment 14 includes a filter plug 250 and a hollow filter 240 aligned in the longitudinal direction, and an outer plug wrap 260 that covers the filter plug 250 and the hollow filter 240. The second segment 14 is not particularly limited as long as it functions as a filter, such as adjusting the flow of air during flavor inhalation or adjusting the amount of flavor or other impurities. The second segment 14 can also function as a rear plug that prevents components located on the first end 101 side of the second segment 14 from falling out.

[0198] The filter plug 250 includes a second filler material 251 and a cylindrical second inner plug wrap 252 that encases the second filler material 251. The filter plug 250 has the second filler material 251 filled in a space that connects the first end 101 and the second end 102 of the filter plug 250. This improves the filtering capacity compared to when the second segment 14 is composed only of a hollow filter. The filter plug 250 is preferably solid. Note that a filter that does not function as a plug may be disposed in the second segment 14 instead of the filter plug 250.

[0199] By providing the hollow filter 240 to the second segment 14, the hardness of the second segment 14 that can function as a mouthpiece can be improved, and bending and flexing can be suppressed.

[0200] The second airflow resistance, which is the airflow resistance per segment of the second segment 14, is 10 mmH ２ 0 or more is preferable, 15 mmH ２ If the second airflow resistance is too low, the second segment 14 becomes soft, making it difficult to wind it during manufacturing and to connect it to other segments using the second tipping paper 270. The second airflow resistance is preferably 50 mmH or more. ２ It is preferable that the pressure is 40 mmH or less. ２ It is more preferable that the pressure is 30 mmH or less. ２ It is more preferable that the second airflow resistance is 10 mmH or less. If the second airflow resistance is too high, it becomes difficult for the user to inhale. In view of the above, the second airflow resistance is set to 10 mmH or less. ２ O or more 50mmH ２ It is preferably 0 or less.

[0201] The second diameter ratio, which is the diameter ratio of the second segment 14, is preferably 85% or more and 95% or less from the viewpoint of ease of inhalation for the user and productivity during manufacturing.

[0202] Flavor-generating article 100 of this embodiment can be manufactured with its airflow resistance adjusted by adjusting the amount, material, or shape of the filler filled in segments such as first segment 11 and second segment 14. Flavor-generating article 100 can also be manufactured with its hardness adjusted by adjusting the amount, material, or shape of the filler filled in each segment, or by adjusting the thickness or material of wrappers such as first inner plug wrap 212 and outer plug wrap 260 that are disposed to cover each segment.

[0203] Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications are possible within the scope of the claims and the technical idea described in the specification and drawings. Note that any shape or material not directly described in the specification or drawings is within the scope of the technical idea of ​​the present invention as long as it achieves the functions and effects of the present invention.

[0204] Tobacco sticks having a structure substantially similar to that of the flavor-generating article 100 shown in Figures 8 and 9 were prepared, and the energy consumption during aerosol generation was calculated by varying the materials of the packaging members of the flavor-generating portion or the tip plug portion. The longitudinal length of the outer plug wrap at the first end (tip side) was 30 mm, and the longitudinal length of the tipping paper was 35 mm. The longitudinal length of the tip plug portion of the tobacco stick was 6 mm. A 35 gsm, 180 mm wide piece of paper was crimped to a depth of 0.45 mm and folded to form the first filler material for the tip plug portion. As the first flavor source, 200 mg of tobacco shreds obtained by shredding a tobacco sheet to a width of 0.8 mm was filled into the flavor-generating portion. Each tobacco stick was heated to the same reference temperature using a flavor inhaler to generate aerosol for tobacco smoking.

[0205] Comparative Examples The first inner plug wrap that wraps the first filler in the tip plug section was made of paper that was not laminated or vapor-deposited with metal and did not contain any non-combustible material. The wrapping paper that wraps the first flavor source in the flavor generating section was made of the following paper. Comparative Example C1 Paper that was not laminated or vapor-deposited with metal and did not contain any non-combustible material. Comparative Example C2 Aluminum-laminated paper

[0206] 15 is a graph showing the energy consumption (J) during aerosol generation in the comparative examples. The symbols on the horizontal axis indicate each comparative example, and the vertical axis represents the energy consumption (J) calculated from the power consumption. It was found that the energy consumption of comparative example C2, in which the first flavor source was packaged in aluminum-laminated paper, was higher than that of comparative example C1.

[0207] 16 is a graph showing the amount of nicotine (Nic) and glycerin (Gly) delivered in the aerosols of the comparative examples. The symbols on the horizontal axis indicate each comparative example, and the vertical axis represents the amount of nicotine and glycerin delivered (mg). The amount of these substances delivered in the aerosols did not change significantly between comparative examples C1 and C2.

[0208] Examples The wrapping paper used to package the first flavor source in the flavor generating section was a paper that was not laminated or vapor-deposited with metal and did not contain any non-combustible material. The first inner plug wrap used to package the first filler in the tip plug section was made of the following paper. Comparative Example C3 Paper that was not laminated or vapor-deposited with metal and did not contain any non-combustible material. Example E1 Aluminum-laminated paper

[0209] 17 is a graph showing the energy consumption (J) during aerosol generation for Example E1 and Comparative Example C3. The symbols on the horizontal axis represent each Example and Comparative Example, and the vertical axis represents the energy consumption (J) calculated from the power consumption. Example E1, in which the first filler material of the tip plug portion was wrapped in aluminum-laminated paper, did not show a significant change in energy consumption compared to Comparative Example C3.

[0210] 18 is a graph showing the amounts of nicotine and glycerin delivered in the aerosols of Example E1 and Comparative Example C3. The symbols on the horizontal axis indicate the examples and comparative examples, and the vertical axis represents the amounts of nicotine and glycerin delivered (mg). Note that there was no significant difference in the amounts of these substances delivered in the aerosols between Example E1 and Comparative Example C3.

[0211] A first aspect of the present invention is a flavor-generating article that generates a flavor upon heating, comprising: a first flavor source; a first member disposed at a first end of the flavor-generating article upstream of the first flavor source; a first packaging member that packages at least a portion of the first member; a second member disposed at a second end of the flavor-generating article downstream of the first flavor source; and a second packaging member that packages at least a portion of the second member, wherein the first packaging member includes at least one member different from the member included in the second packaging member. According to a second aspect of the present invention, the first member is a tip plug in the first aspect. According to a third aspect of the present invention, the first packaging member in the first or second aspect extends in the longitudinal direction of the flavor-generating article from a position upstream of the first flavor source to the first end. According to a fourth aspect of the present invention, the first packaging member in any of the first to third aspects is a flame-retardant sheet. According to a fifth aspect of the present invention, in any of the first to fourth aspects, the first packaging member comprises at least one of metal and ceramic. According to a sixth aspect of the present invention, in the fifth aspect, the first packaging member comprises the metal, and the tensile strength of the metal is 30 N / 15 mm or more and 40 N / 15 mm or less. According to a seventh aspect of the present invention, in the fifth or sixth aspect, the first packaging member comprises metal foil. According to an eighth aspect of the present invention, in the seventh aspect, the first packaging member comprises aluminum-laminated paper or aluminum-metal-deposited paper. According to a ninth aspect of the present invention, in any of the first to eighth aspects, the first member comprises at least one of a second flavor source and an aerosol source. According to a tenth aspect of the present invention, in any of the first to ninth aspects, the second member comprises a filter. According to an eleventh aspect of the present invention, in any of the first to tenth aspects, the second packaging member is paper without a metal layer. According to a twelfth aspect of the present invention, in any one of the first to eleventh aspects, at least one paper layer is further provided on the outside of at least one of the first packaging member and the second packaging member. According to a thirteenth aspect of the present invention, in any one of the first to twelfth aspects, the flavor-generating article is a tobacco stick.According to a fourteenth aspect of the present invention, a flavor generating system includes the flavor generating article according to any one of the first to thirteenth aspects and a non-combustion heating type flavor inhaler. According to a fifteenth aspect of the present invention, in the fourteenth aspect, the flavor inhaler includes a heating unit that heats the flavor generating article from outside the flavor generating article.

[0212] 11: First segment 12: Flavor generating segment 13: Cooling segment 14: Second segment 20: Power supply unit 30: Atomization unit 40: Heating source 50: Chamber 80: Control unit 91: Metal layer 92: Paper layer 100: Flavor generating article 101: First end 102: Second end 112: Tip plug unit 200: Flavor inhaler 211: First filler material 212: First inner plug wrap 215: Second flavor source 220: Flavor generating unit 221: First flavor source 240: Hollow filter 250: Filter plug 251: Second filler material 252: Second inner plug wrap 260: Outer plug wrap 270: Second tipping paper 280: First tipping paper 285: First connecting body 1000: Flavor generating system AX: Central axis

Claims

1. A flavor generating article that generates a flavor when heated, comprising: a first flavor source; a first member disposed at a first end of the flavor generating article upstream of the first flavor source; a first packaging member that packages at least a portion of the first member; a second member disposed at a second end of the flavor generating article downstream of the first flavor source; and a second packaging member that packages at least a portion of the second member, wherein the first packaging member contains at least one type of member different from a member contained in the second packaging member.

2. The flavor generating article of claim 1, wherein said first member is a tip plug.

3. A flavor generating article as described in claim 1 or 2, wherein the first packaging member extends longitudinally of the flavor generating article from a position upstream of the first flavor source to the first end.

4. A flavor-generating article according to any one of claims 1 to 3, wherein the first packaging member is a flame-retardant sheet.

5. A flavor-generating article according to any one of claims 1 to 4, wherein the first packaging member comprises at least one of metal and ceramic.

6. The flavor-generating product according to claim 5, wherein the first packaging member includes the metal, and the tensile strength of the metal is 30 N / 15 mm or more and 40 N / 15 mm or less.

7. The flavor-generating article according to claim 5 or 6, wherein the first packaging member comprises a metal foil.

8. The flavor-generating article according to claim 7, wherein the first packaging member includes aluminum-laminated paper or aluminum-metallized paper.

9. The flavor generating article of any one of claims 1 to 8, wherein the first component includes at least one of a second flavor source and an aerosol source.

10. A flavor generating article according to any one of claims 1 to 9, wherein the second member includes a filter.

11. A flavor-generating article according to any one of claims 1 to 10, wherein the second packaging member is paper without a metal layer.

12. The flavor-generating article of any one of claims 1 to 11, further comprising at least one paper layer on the outside of at least one of the first packaging member and the second packaging member.

13. The flavor generating article of any one of claims 1 to 12, wherein the flavor generating article is a tobacco stick.

14. A flavor generating system comprising: a flavor generating article according to any one of claims 1 to 13; and a non-combustion heating type flavor inhaler.

15. The flavor generating system according to claim 14, wherein the flavor inhaler includes a heating section that heats the flavor generating article from outside the flavor generating article.

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