Flavor inhaler filter portion and flavor inhaler

Abstract

The present invention relates to a flavor inhaler filter portion (30) comprising: a paper filter into which a sheet member is filled such that the member forms a void in a longitudinal direction; and a filler (33) provided in the paper filter and changing a flow path in the paper filter. The downstream side end of the flavor inhaler filter portion (30) is positioned at a position at least a predetermined distance from the end of the filler (33).

Description

Technical Field

[0001] The present invention relates to a flavor inhaler filter part and a flavor inhaler. Background Art

[0002] PTL 1 discloses a cigarette that includes a tobacco rod and a filter element connected to the tobacco rod. The filter element has an end close to the tobacco rod and an end far from the tobacco rod, wherein: the filter element includes a first filter material section located on the proximal side of the tobacco rod and a second longitudinally extending filter material section located on the distal side of the tobacco rod and arranged in a head-to-tail contact configuration with the first filter material section; and the first filter material section includes one or more tubes that are inserted into and extend through the first filter material section.

[0003] Citation List

[0004] Patent Document

[0005] PTL 1 JP 2014-509872 A Summary of the Invention

[0006] Problems to be Solved

[0007] As a filter for a flavor inhaler, a paper filter can be used, for example, in consideration of the environment. Here, the ability of a paper filter to filter aerosol is generally higher than that of a filter using fibers such as cellulose acetate. Therefore, compared with the case of using a filter using fibers such as cellulose acetate, when a paper filter is used, the smoking flavor provided by the aerosol is reduced.

[0008] To adjust the smoking flavor, a filler can be provided in the flow path within the paper filter. Depending on the filler, the filler can be visible at the end of the filter part, resulting in the appearance of holes.

[0009] The object of the present disclosure is to suppress the formation of holes at the end of the filter.

[0010] Solution to the Problem

[0011] A first feature of the present disclosure achieved in view of this object is a flavor inhaler filter part that includes a paper filter filled with sheet members to form voids in the longitudinal direction and a filler provided within the paper filter to change the flow path within the paper filter, wherein the downstream-side end of the filter part is located at a position a predetermined distance or more away from the end of the filler.

[0012] A second feature is that the filler can have a flat surface, and the flat surface can be provided on the downstream end side.

[0013] The third feature is that the filler can be cylindrical.

[0014] The fourth feature is that the filler can be a hollow member.

[0015] The fifth feature is that the predetermined distance can be 1 / 2 × A × (where A is the diameter of the outer peripheral circle of the flat surface).

[0016] The sixth feature is that the hollow member can at least include paper.

[0017] The seventh feature is that the hollow member can be a straight paper tube obtained by wrapping paper in a cylindrical shape, or a spiral paper tube obtained by obliquely wrapping strip-shaped paper.

[0018] The eighth feature is that the paper filter can be a filter obtained by gathering sheet members.

[0019] The ninth feature is that the paper filter can be a filter obtained by curling a sheet member made of paper or non-woven fabric.

[0020] The tenth feature is that the filling density of the paper filter can be from 90 mg / cm³ to 720 g / cm³.

[0021] The eleventh feature is a flavor inhaler, which includes a filter part and a matrix part, and the matrix part includes an aerosol source.

[0022] The twelfth feature is that the flavor inhaler can be a heat-not-burn type flavor inhaler.

[0023] The thirteenth feature is that the flavor inhaler can be a combustion type flavor inhaler.

[0024] Advantageous effects of the present invention

[0025] According to the first feature, compared with the case where the downstream end of the filter part is not at a predetermined distance from the end of the filler, a flavor inhaler filter part can be provided in which holes are not formed at the end of the filter.

[0026] According to the second feature, a flavor inhaler filter part can be provided in which the filler is more evenly filled compared with the case where the flat surface of the filler is not provided on the downstream end side of the filter part.

[0027] According to the third feature, a flavor inhaler filter part can be provided in which the filler cannot be seen from the end compared with the case where the filler is not cylindrical.

[0028] According to the fourth feature, a flavor inhaler filter part can be provided, in which, compared with the case where the filler is not a hollow member, the aerosol filtration performance of a paper filter with excessive filtration performance can be reduced, thereby preventing an impact on the smoking flavor.

[0029] According to the fifth feature, a flavor inhaler filter part can be provided, in which, compared with the case where the downstream side end of the filter part is located at a distance less than 1 / 2 × A × from the end of the filler (where A is the diameter of the outer peripheral circle of the flat surface), formation of holes at the end of the filter part is prevented.

[0030] According to the sixth feature, a flavor inhaler filter part can be provided, in which the material constituting the hollow member is closer to the material of the paper filter than in the case where the hollow member does not contain paper.

[0031] According to the seventh feature, a flavor inhaler filter part can be provided, in which even paper with a small basis weight can be used alone for the hollow member, the formability of the hollow member is good, and compared with the case where the hollow member is not constructed of a straight paper tube obtained by wrapping paper in a cylindrical shape or a spiral paper tube obtained by wrapping strip-shaped paper obliquely, the finished hollow member has excellent strength.

[0032] According to the eighth feature, a flavor inhaler filter part can be provided, in which the uniformity of the packing density is increased, thereby reducing the variation in the aerosol filtration level between the rods compared with a filter in which the sheet members are not gathered.

[0033] According to the ninth feature, a flavor inhaler filter part can be provided, which has a higher aerosol filtration ability than in the case where the paper filter is not curled.

[0034] According to the tenth feature, when a paper filter is used in a flavor inhaler, appropriate aerosol filtration can be achieved.

[0035] According to the eleventh to thirteenth features, a flavor inhaler can be provided, in which no holes are formed at the end of the filter, and compared with the case where the downstream side end of the filter part is located at a position not at a predetermined distance from the end of the filler, there is no adverse effect on the smoking flavor. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a diagram showing a longitudinal section of a heat-not-burn type flavor inhaler according to a first embodiment.

[0037] Figure 2 is a schematic diagram schematically showing a configuration example of an inhalation device according to a first embodiment.

[0038] Figure 3 FIG. is a cross-sectional view of a filter portion of a heat-not-burn type flavor inhaler according to a first embodiment.

[0039] Figure 4 FIG. is a schematic view of a filter portion of a heat-not-burn type flavor inhaler according to a first embodiment.

[0040] Figure 5 FIG. is a view showing examples of fillers of a heat-not-burn type flavor inhaler according to a first embodiment and other embodiments.

[0041] Figure 6 FIG. is a cross-sectional view of a filter portion of a heat-not-burn type flavor inhaler according to a first embodiment.

[0042] Figure 7 FIG. is a longitudinal sectional view of a heat-not-burn type flavor inhaler according to other aspects of a first embodiment.

[0043] Figure 8 FIG. is a longitudinal sectional view of a heat-not-burn type flavor inhaler according to other aspects of a first embodiment.

[0044] Figure 9 FIG. is a longitudinal sectional view of a heat-not-burn type flavor inhaler according to a second embodiment.

[0045] Figure 10 FIG. is a longitudinal sectional view of a combustion heating type flavor inhaler according to a fourth embodiment.

[0046] Figure 11 FIG. is a longitudinal sectional view of a combustion heating type flavor inhaler according to other aspects of a fourth embodiment.

[0047] Figure 12 FIG. is a longitudinal sectional view of a combustion heating type flavor inhaler according to a fifth embodiment.

[0048] Figure 13 FIG. is a longitudinal sectional view of a combustion heating type flavor inhaler according to other aspects of a fifth embodiment.

[0049] Figure 14 FIG. is a schematic view of a method for manufacturing a filter portion according to a first embodiment.

[0050] Figure 15 FIG. is a longitudinal sectional view of a heat-not-burn type flavor inhaler according to a third embodiment. DETAILED DESCRIPTION

[0051] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference numerals.

[0052] <Heat-not-burn flavor inhaler>

[0053] Figure 1 FIG. is a longitudinal sectional view showing a heat-not-burn flavor inhaler 1 according to a first embodiment. Figure 2 FIG. is a schematic diagram schematically showing a configuration example of an inhalation device 100 according to a first embodiment.

[0054] The heat-not-burn flavor inhaler 1 (hereinafter sometimes referred to as "flavor inhaler 1") according to the first embodiment includes a substrate portion 10, a cooling portion 20, and a filter portion 30. A mouthpiece section 50 can be held in the user's mouth during inhalation, and in Figure 1 an example, the mouthpiece section includes the cooling portion 20 and the filter portion 30. Further, the substrate portion 10 is formed in a cylindrical shape. Hereinafter, the direction of the center line CL of the substrate portion 10 may be referred to as the "center line direction". The flavor inhaler 1 is additionally provided with a tipping paper 40 that wraps around the substrate portion 10, the cooling portion 20, and the filter portion 30, thereby integrating these components, and the substrate portion, the cooling portion, and the filter portion are arranged in this order along the center line direction.

[0055] Hereinafter, one end side in the center line direction ( Figure 1 the left side in ) may be referred to as the first side, and the other end side in the center line direction ( Figure 1 the right side in ) may be referred to as the second side. The first side is the end side inserted into the inhalation device 100 and is the upstream side in the aerosol flow during inhalation. The second side is the side opposite to the first side, is the end side held in the user's mouth for inhalation, and is the downstream side in the aerosol flow during inhalation. Additionally, a cross-section along the center line direction is referred to as a "longitudinal section", and a cross-section cut along a plane orthogonal to the center line direction is defined as a "cross-section".

[0056] [Usage mode of flavor inhaler 1]

[0057] The flavor inhaler 1 according to the first embodiment is used in a heat-not-burn inhalation device 100. As Figure 2As shown, the inhalation device 100 includes a power supply unit 111 for storing electric power and supplying electric power to each component of the inhalation device 100, a sensor unit 112 for detecting various types of information regarding the inhalation device 100, and a notification unit 113 for notifying the user of this information. In addition, the inhalation device 100 further includes a memory unit 114 for storing various information for the operation of the inhalation device 100, a communication unit 115 for transmitting and receiving information between the inhalation device 100 and other devices, and a control unit 116 for controlling the overall operation in the inhalation device 100. In addition, the inhalation device 100 includes a heating unit 121 for heating the flavor inhaler 1, a housing portion 140 for housing the flavor inhaler 1, an opening 142 for communicating the internal space 141 with the outside, and a heat insulation portion 144 for preventing heat transfer from the heating unit 121 to other components of the inhalation device 100. In the inhalation device 100, when the flavor inhaler 1 is housed in the housing portion 140, the user inhales.

[0058] The heating unit 121 heats the matrix portion 10 of the flavor inhaler 1. The heating unit 121 is formed of any material such as metal or polyimide. For example, the heating unit 121 is configured in a film shape and is provided to cover the outer circumference of the housing portion 140. Then, when the heating unit 121 generates heat, the aerosol source 11 ( Figure 2 omitted in the figure) contained in the flavor inhaler 1 is heated from the outer circumference of the flavor inhaler 1. The heating unit 121 generates heat when electric power is supplied from the power supply unit 111. For example, when the sensor unit 112 detects a prescribed user input, electric power can be supplied. When the temperature of the flavor inhaler 1 heated by the heating unit 121 has reached a prescribed temperature, inhalation by the user becomes possible. Thereafter, when the sensor unit 112 detects a predetermined user input, the supply of electric power can be stopped. As another example of the usage mode, electric power can be supplied to generate an aerosol during the period when the sensor unit 112 detects that the user inhales from the downstream side of the filter portion 30.

[0059] The heat insulation portion 144 is provided to cover at least the outer circumference of the heating unit 121. For example, the heat insulation portion 144 is configured of a vacuum heat insulation material or an aerogel heat insulation material, etc. It should be noted that the vacuum heat insulation material is a heat insulation material in which, for example, a high vacuum state is created by wrapping glass wool and silica (silicon powder), etc. in a resin film so that the heat conduction of the gas is made as close to zero as possible.

[0060] [Flavor Inhaler 1]

[0061] The flavor inhaler 1 according to the first embodiment is for use in a non-burning type flavor inhaler.

[0062] The cross-section of the flavor inhaler 1 is substantially circular, and its outer diameter can be appropriately changed to match the size of the product, but is generally 16 mm to 27 mm, preferably 21 mm to 23 mm. It should be noted that when the cross-section is not circular, if it is imagined as a circle having the same area as its cross-sectional area, the above outer diameter can adopt the outer diameter of this circle.

[0063] The size of the flavor inhaler 1 in the center line direction can be appropriately changed to match the size of the product, but is generally 40 mm to 100 mm, preferably 50 mm to 70 mm.

[0064] [Filter section 30]

[0065] The filter section 30, which is a feature of the flavor inhaler 1 according to the first embodiment, will be described.

[0066] Figure 3 is a diagram showing an example of the configuration of the filter section 30 according to the first embodiment, where (A) is a diagram showing Figure 1 an example of the cross-section taken along I-I in, and (B) is a diagram showing Figure 1 an example of the cross-section taken along II-II in. Figure 4 is a diagram illustrating another example of the configuration of the filter section 30 according to the first embodiment, where (A) is a view illustrating another example of the cross-section taken along I-I, and (B) is a view illustrating another example of the cross-section taken along II-II.

[0067] The filter section 30 is formed in a cylindrical shape, where the size in the center line direction is larger than the width of the cross-section. Therefore, the filter section 30 is arranged such that the longitudinal direction is the center line direction.

[0068] The filter section 30 includes a filter 31 through which the aerosol passes, a filler 33 that changes the flow path within the filter 31, and a wrapper paper 35 that exists between the filter 31 and the tipping paper 40 and wraps around the outer circumferential surface of the filter 31. By integrally wrapping the cooling section 20 and the filter section 30 using the tipping paper 40, the filter section 30 is connected (coupled) to the cooling section 20 (see Figure 1 ). It should be noted that it is not necessary to provide the wrapper paper 35.

[0069] There is no particular restriction on the form of the roll 35, which may include a seam comprising one or more adhesive lines. The adhesive may include a hot melt adhesive, and further, the hot melt adhesive may include polyvinyl alcohol. Additionally, if the filter portion 30 is composed of two or more components, it is preferred to wrap each of the two or more components with a roll, and then further wrap them together with another roll.

[0070] There is no particular limitation on the material of the rolling paper 35 , and publicly known materials may be used, and the rolling paper may further include a filler such as calcium carbonate or the like.

[0071] The thickness of the web 35 is not particularly limited, and is generally 20 μm to 140 μm, preferably 30 μm to 130 μm, more preferably 30 μm to 120 μm.

[0072] The basis weight of the web 35 is not particularly limited, and is generally 20 gsm to 100 gsm, preferably 22 gsm to 95 gsm, more preferably 23 gsm to 90 gsm.

[0073] The air permeability of the wrapping paper 35 is not particularly limited, but is generally 0 CORESTA unit to 30,000 CORESTA units, preferably more than 0 CORESTA unit and not more than 10,000 CORESTA units.

[0074] Furthermore, the web 35 may be coated or uncoated, but is preferably coated with a desired material from the viewpoint of allowing functions other than strength and structural rigidity to be imparted.

[0075] The cross section of the filter 31 of the filter portion 30 is substantially circular, and its outer diameter can be appropriately changed to match the size of the product, but can be, for example, 22 mm to 25 mm. It should be noted that when the cross section is not circular, if it is assumed to have the same area as the cross-sectional area of a circle, the outer diameter of the circle can be used as the outer diameter of the circle.

[0076] The size of the filter portion 30 in the centerline direction may be appropriately changed to match the size of the product, but is generally 5.0 mm to 30.0 mm, preferably 12.5 mm to 27.5 mm, more preferably 15.0 mm to 25.0 mm.

[0077] The air flow resistance per 10 mm of the filter portion 30 in the centerline direction is not particularly limited, but is generally 0 mmH2O to 100 mmH2O, preferably 10 mmH2O to 80 mmH2O, more preferably 10 mmH2O to 50 mmH2O.

[0078] The air flow resistance is measured according to the ISO standard method (ISO6565) using, for example, a filter air flow resistance measuring instrument manufactured by Cerulean. The air resistance of the filter part 30 refers to the pressure difference between the first side and the second side when air flows from the first side to the second side at a predetermined air flow rate (17.5 cc / min) in a state where the air does not penetrate the side surface of the filter part 30. The unit is usually expressed in mmH2O.

[0079] The filter 31 is a paper filter formed by filling a sheet member so as to form voids along the longitudinal direction through which the aerosol can pass. In other words, the filter 31 is a paper filter formed by filling the sheet member so as to ensure an aerosol passage route extending in the center line direction.

[0080] There is no particular limitation on the filling density of the sheet member constituting the filter 31, but it is usually 90 g / m³ to 720 g / m³. The filling density of the sheet member varies depending on the presence or absence of the filler 33. Figure 5 Schematically illustrated are the region 301 where the filler 33 is provided in the cross section of the filter 31 and the region 302 where the filler 33 is not provided in the cross section of the filter 31. Figure 3 (B) is a cross-sectional view of the filter part in the region 301, and Figure 3 (A) is a cross-sectional view of the filter part in the region 302. As Figure 3 (A) shows, the filling density of the sheet member in the region where the filler 33 is not provided is preferably 90 g / cm³ to 360 g / cm³, more preferably 150 g / cm³ to 240 g / cm³. In addition, as Figure 3 (B) shows, the filling density of the sheet member in the region where the filler 33 is provided is preferably 105 g / cm³ to 720 g / cm³, more preferably 170 g / cm³ to 480 g / cm³.

[0081] There is no particular limitation on the material of the sheet member constituting the filter 31, provided that the general functions of the filter can be achieved. However, it is preferable that the material is paper, such as pulp paper having pulp as a main component, or a non-woven fabric, and more preferably paper. Alternatively, a polymer sheet, a metal sheet, etc. can be used as the material of the sheet member constituting the filter 31. It should be noted that the general functions of the filter that can be listed include, for example, adjusting the amount of air mixed when inhaling an aerosol, etc., reducing the flavor, and reducing the amounts of nicotine and tar, etc., but not all of these functions need to be provided. In addition, in the heat-not-burn type flavor inhaler 1 (which tends to have fewer generated components and a lower filling rate of the aerosol source 11 than cigarette products), an important function of the filter is also to prevent the components contained in the flavor inhaler 1 from falling out while controlling the filtering function.

[0082] The filter 31 is formed of a sheet member that is folded or wrinkled, gathered, etc. and filled to ensure an aerosol passage route extending in the center line direction. Specifically, as Figure 3 shown in (A), the filter 31 is a paper filter obtained by filling a sheet member so as to form voids in the longitudinal direction of the filter portion 30, and the sheet member is gathered. Here, "gathered" means that the sheet member is filled in a state of being folded back multiple times in a direction parallel to the center line of the filter 31.

[0083] The sheet member constituting the filter 31 can be one sheet or two or more sheets. In addition, folding or pleating is not required, provided that an aerosol passage route extending in the center line direction is ensured. Specifically, the filter 31 can be a paper filter filled with a strip-shaped sheet member as shown in Figure 4 (A). However, by curling the entire sheet member, voids can be efficiently formed in the sheet member.

[0084] Curling is a process for providing wrinkles in a sheet. Curling can be carried out, for example, by passing the sheet to be processed between a pair of rollers having a plurality of protrusions on their surfaces, thereby simultaneously providing wrinkles extending orthogonally to the sheet conveyance direction on the front and back surfaces of the sheet.

[0085] The filler 33 is provided inside the paper filter (filter 31). The filler 33 is provided to adjust the smoking flavor. Although in some cases the flow path inside the paper filter is restricted by providing the filler 33, at least the flow path is changed.

[0086] In the present embodiment, the downstream (second side) end of the filter portion 30 is located at a position that is a predetermined distance or more from the downstream (second side) end of the filler 33. Compared with the case where the downstream side end of the filter portion 30 is not at a predetermined distance from the end of the filler 33, this positional relationship makes it possible to suppress the formation of holes in the downstream side end of the filter portion 30.

[0087] In the case where the filler 33 has a flat surface at its downstream side end, the predetermined distance is preferably 1 / 2 × A × . Here, A is the diameter of the outer peripheral circle of the flat surface on the downstream side of the filler 33. If the shape of the flat surface is not circular, a circle having the same area as the flat surface is taken, and A is the diameter of the outer peripheral circle of the circle. Further, if the filler 33 is a hollow member, the downstream side end of the filler 33 does not form a flat surface but a void, and in this case, the diameter of the outer peripheral circle is obtained using an imaginary flat surface formed by the downstream side end of the filler. When an equilateral triangle having the diameter of the outer peripheral circle as the side length of each side is formed, 1 / 2 × A × corresponds to the height of the equilateral triangle.

[0088] To explain why 1 / 2 × A × is preferable, a method for manufacturing the filter portion 30 will be described with reference to Figure 14 the description for manufacturing the filter portion 30.

[0089] In the manufacture of the filter portion 30 according to the present embodiment, for ease of manufacture, four filter portions 30 are manufactured simultaneously. First, a sheet member having a size corresponding to four filters 31 is covered on a single flat paper serving as a roll paper 35 and having a length corresponding to four filter portions, while curling the sheet member. The fillers 33 each including a hollow filler cylinder are placed on the curled sheet member, and the roll paper 35 and the sheet member are rolled up to form a shape 300 including four consecutive filter portions 30, as Figure 14 illustrated in (A). The fillers 33 are filled in two places on the left and right inside the filter 31.

[0090] Next, the filter portion is cut at three positions indicated by the dashed lines a, b, and c in the drawing to obtain four filter portions 30-1 to 30-4, as Figure 14As shown in (B). The filler 33 is cut into halves during cutting, and finally each of the four filter parts 30-1 to 30-4 is filled with one of the halves. In order to prevent the hollow filler 33 from being exposed on the downstream side (second side) of the filter part 30, in the drawings, the left sides of the filter parts 30-1 and 30-3 in the cut filter part 30 are used as the downstream side (second side) of the filter part 30, and in the drawings, the right sides of the filter parts 30-2 and 30-4 are used as its downstream side (second side).

[0091] The filter 31 has a high filling density at the position where the filler 33 is provided and a low filling density at the position where the filler 33 is not provided, but the downstream side of the filler 33 is formed in a funnel-like shape at the position where the filter 31 does not exist. In the longitudinal sectional view of the filter part, the distance from the filler 33 to the position where the filter 31 does not exist and is close to the bottom side is the height of an equilateral triangle (1 / 2 × A × ) of the circumference of the flat surface at the downstream side end of the filler 33, and thus the predetermined distance is preferably 1 / 2 × A × .

[0092] If the downstream side end of the filter part 30 is positioned closer to the filler 33 than 1 / 2 × A × , then if the filter part 30 is cut along the Figure 14 XIVC section in (B), for example, as shown in Figure 14 (C), holes that are not covered by the paper filter (filter 30) are formed, and the filler 33 can be seen from the outside. In addition, if the filler 33 is hollow, the inside of the filler 33 can also be seen from the outside, which is not preferable.

[0093] Figure 6 (A) to Figure 6 (C) are schematic views showing examples of the filler 33 observed from the side. The filler 33 is provided inside the paper filter, and thus preferably has an elongated shape. Although shapes such as those shown in Figure 6 (B) and (C) are also possible, it is preferable that at least the part of the filler 33 provided at the downstream side end of the filter part 30 is flat. Both ends can be flat surfaces, as shown in Figure 6 (A).

[0094] The filler 33 can be hollow or solid. The shape of the outer periphery of the filler 33 in cross-section can be appropriately changed to match the shape of the product, but can be, for example, circular, elliptical, polygonal, or rounded polygonal.

[0095] Further, in the cross-section, the ratio of the area of the filler 33 to the area of the filter portion 30 is not particularly limited, but may be, for example, 15% to 50%, preferably 20% to 40%. Further, if a plurality of fillers 33 are provided in the filter 31, it is preferable that, in one cross-section, the ratio of the total area of the plurality of fillers 33 to the area of the filter portion 30 is within the above range.

[0096] In the cross-section of the filler 33, if the shape of the outer periphery of the filler is substantially circular, the outer diameter can be appropriately changed to match the size of the product, but the outer diameter is generally 6 mm to 15 mm, preferably 9 mm to 11 mm. Further, the ratio of the outer diameter of the filler 33 to the outer diameter of the filter 31 is generally between 0.20 and 0.70, preferably between 0.35 and 0.50. The substrate portion 50 is preferably annular. It should be noted that when the cross-section is not circular, if it is assumed to be a circle having the same area as its cross-sectional area, the above outer diameter can be the outer diameter of this circle.

[0097] The filler is provided in the paper filter and thus preferably has an elongated shape, and the cross-sectional shape can be appropriately changed to match the shape of the product, but is, for example, circular, elliptical, polygonal or rounded polygonal. From the perspective of the appearance of the filler 33, a hollow or solid cylindrical shape is preferred, and in particular, a hollow body is preferred.

[0098] Specific examples of the configuration of the filler 33 will now be described.

[0099] For example, the filler 33 is a tube formed by wrapping a sheet member, the sheet member including the same material as the sheet member constituting the filter 31, such that the cross-section of a cylinder or the like is hollow. Specifically, the filler 33 is a paper tube formed by wrapping paper. By making the filler 33 a paper tube, the material constituting the filler 33 is substantially the same as the material of the filter 31.

[0100] The filler 33 is a so-called spiral paper tube, which is a tube formed by binding together at least a plurality of sheet members including paper and wrapping these sheet members in a spiral shape. The spiral paper tube manufacturing method enables an easily formed paper tube having a circular cross-section. By using a spiral paper tube for the filler 33, the strength of the filler 33 can be increased while limiting the ratio of the area of the filler 33 to the area of the filter portion 30. Further, a new smoking flavor can be imparted to the aerosol by combining and binding a sheet member containing a flavor component, a flavor component, a comminuted tobacco product, etc. with the paper.

[0101] Alternatively, the filler 33 may be a so-called straight paper tube, which is formed by wrapping paper in multiple layers in a cylindrical shape. In the method of manufacturing a straight paper tube, the amount of glue used for pasting the paper can be reduced compared to the method of manufacturing a spiral paper tube.

[0102] In addition, the filler 33 may also be a paper tube formed by laminating a plurality of sheet members each containing at least paper. By laminating a plurality of sheet members, the strength of the filler 33 can be maintained even if the basis weight of each sheet member is small.

[0103] It should be noted that the filler 33 is not limited to a paper tube formed by wrapping paper, and may also be formed of a tube made of a material such as synthetic resin that already has a hollow cross-section. There is no particular limitation on the thickness of the filler 33. For example, when the filler is formed by overlapping a plurality of sheets, the total thickness may be 50 μm to 500 μm, or may be 100 μm to 250 μm. By using such a thickness, deformation caused by pressure from the surrounding paper filter can be suppressed.

[0104] Although the filler 33 has been described as a hollow member having a hollow cross-section, its configuration is not limited thereto, provided that its filtration rate is lower than that of the filter 31. For example, the filler 33 may be formed of a solid member having a solid cross-section, such as formed of cellulose acetate fibers having a filtration rate lower than that of paper.

[0105] In Figure 1 the illustrated example, the shape of the end of the filler 33 in the center line direction is a flat surface, but it is not limited thereto and does not have to be a flat surface.

[0106] Figure 7 is a diagram illustrating another example of a longitudinal section of the flavor inhaler 1 according to the first embodiment, that is, an example in which the matrix portion 10 includes an end member 13 that prevents the aerosol source 11 from falling from the first side end face of the matrix portion 10. Figure 7 (A) is a diagram illustrating a longitudinal section of the flavor inhaler 1 provided with a filler 33 having a sharp second side, and (B) is a diagram illustrating a longitudinal section of the flavor inhaler 1 provided with a filler 33 whose width decreases from the first side toward the second side.

[0107] For example, the shape of the end of the filler 33 in the center line direction may be such that the end surface on the first side of the filler 33 is a flat surface, and the end surface on the second side of the filler is sharp, as Figure 7 shown in (A). Further, for example, as Figure 7 shown in (B), the width in the region on the second side of the filler 33 may be smaller than the width in the region on the first side.

[0108] Figure 8 An example of another embodiment mode of the filter part 30 is shown.

[0109] Figure 8 FIG. is a view showing another example of a longitudinal section of the flavor inhaler 1 according to the first embodiment, that is, an example in which the matrix part 10 includes a head member 13 that prevents the aerosol source 11 from falling from the first side end surface of the matrix part 10. Figure 8 (A) is a view showing a state in which a filter 33 having a size smaller than that of the filter 31 in the center line direction is positioned within the filter 31, and Figure 8 FIG. (B) is a view showing a state in which a plurality of fillers 33 are positioned within the filter 31. When the plurality of fillers 33 are positioned within the filter 31, the distance between the downstream side end of the filter part 30 and the filler 33 is determined using the filler 33 located at the downstream side end of the filter part 30 among the fillers 33. By arranging the plurality of fillers 33 and increasing the ratio of the fillers 33 to the filter 31, the aerosol filtration rate due to the filter part 30 can be reduced while increasing the strength of the mouthpiece section 50.

[0110] In addition, the filter 31 may contain a crushable additive release container (e.g., a capsule), and the additive release container includes a crushable outer shell such as gelatin. There is no particular limitation on the form of the additive release container (such as a capsule), and a known form can be adopted. In the case of a capsule, when the capsule ruptures before, during, or after use by the user, the liquid or substance (usually a flavoring agent) contained inside the capsule is released, and then the liquid or substance is carried by the aerosol when using the smoking rod and diffuses into the surrounding environment after the smoking rod has been used.

[0111] There is no particular limitation on the form of the capsule, and it may be, for example, a capsule that is easily ruptured, and its shape is preferably spherical. Any additive can be included as the additive contained in the capsule, but preferably includes a flavoring agent, a taste component, or a fragrance. In addition, one or more types of materials for assisting in filtering the aerosol can be added as additives. There is no particular limitation on the form of the additive, and it is usually a liquid or a solid. In addition, a known easily ruptured capsule and its manufacturing method can be adopted.

[0112] The flavoring agent may include, for example, menthol, spearmint, peppermint, fenugreek, or clove, and may be medium-chain triglycerides (MCT), etc., and one or a combination thereof can be used.

[0113] In addition, the filter may additionally include other components, such as inorganic fine powders (kaolin, talc, diatomaceous earth, quartz, calcium carbonate, barium sulfate, titanium oxide, alumina, etc.), heat stabilizers (such as salts of alkali metals or alkaline earth metals), colorants, whiteness improvers, oils, retention enhancers, sizing agents, biodegradation or photodegradation enhancers (such as anatase titanium oxide), natural polymers or their derivatives (such as cellulose powder), etc. In addition to these filler materials, inorganic adsorbents (such as activated carbon), sepiolite, palygorskite, zeolite, activated carbon fiber, activated alumina, sepiolite mixed paper, silica gel, activated clay, vermiculite, diatomaceous earth, and pulp, various fibers, ion exchange resins, and other polymer porous bodies may be used. The other components may be used alone or in combination of two or more kinds.

[0114] [Matrix portion 10]

[0115] As discussed above, the flavor inhaler 1 is additionally provided with a tipping paper 40 which wraps around the matrix portion 10, the cooling portion 20, and the filter portion 30, thereby integrating these components, and the matrix portion, the cooling portion, and the filter portion are arranged in this order along the center line direction. Now, the matrix portion 10 will be described.

[0116] The matrix portion 10 includes: an aerosol source 11 which generates vapor when heated, and the vapor generates an aerosol; and a roll paper 12 which covers the outer circumference of the aerosol source 11. Figure 1 The matrix portion 10 in [reference] is an example of a matrix portion containing an aerosol source. The matrix portion 10 is formed in a cylindrical shape by wrapping the aerosol source 11 with the roll paper 12. The aerosol source 11 may be, for example, a tobacco-derived substance (such as tobacco shreds), or a processed product obtained by molding tobacco raw materials into a granular form, a sheet form, or a powder form. In addition, the aerosol source 11 may also contain non-tobacco-derived substances produced by plants other than tobacco (for example, mint or herbal plants, etc.). As an example, the aerosol source 11 may contain a flavoring component, such as menthol. When the inhalation device 100 is a medical inhaler, the aerosol source 11 may contain a drug to be inhaled by a patient. It should be noted that the aerosol source 11 is not limited to a solid, and may equally be a polyol (such as glycerol or propylene glycol), or a liquid (such as water). In Figure 2 In the state where the flavor inhaler 1 shown in [reference] is accommodated in the accommodation portion 140, at least a part of the matrix portion 10 is accommodated in the inner space 141 of the accommodation portion 140.

[0117] The matrix portion 10 obtained by wrapping the aerosol source 11 with the roll paper 12 preferably has a cylindrical shape which satisfies an aspect ratio of 1 or more defined by Equation 1.

[0118] [Formula 1]

[0119] Aspect ratio = h / w

[0120] In Formula 1, w is the width of the cross-section of the substrate portion 10, and h is the size of the substrate portion 10 in the centerline direction, preferably h ≥ w. The shape of the cross-section is not limited and can be polygonal, rounded polygonal, circular, elliptical, etc.; in the case of a circular cross-section, the width w is the diameter; in the case of an elliptical cross-section, w is the major axis; and in the case of a polygonal or rounded polygonal cross-section, w is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. The width of the aerosol source 11 constituting the substrate portion 10 is preferably 4 mm to 9 mm.

[0121] The size h of the substrate portion 10 in the centerline direction can be appropriately changed to match the size of the product, but is usually 8 mm or more, preferably 10 mm or more. Further, the size h of the substrate portion 10 in the centerline direction is usually 70 mm or less, preferably 30 mm or less.

[0122] In addition, the ratio of the size h of the substrate portion 10 in the centerline direction to the size of the flavor inhaler 1 is not particularly limited, but from the perspective of balancing the delivery amount and the aerosol temperature, it is usually 10% or more, preferably 20% or more, more preferably 25% or more, even more preferably 30% or more. In addition, the ratio of the size h of the substrate portion 10 to the size of the flavor inhaler 1 is 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.

[0123] There is no particular limitation on the content of the aerosol source 11 in the substrate portion 10, but examples that can be cited include 200 mg to 800 mg, preferably 250 mg to 600 mg. If the substrate portion 10 has a perimeter of 22 mm and a size of 20 mm in the centerline direction, these ranges are particularly suitable.

[0124] Now, the aerosol source 11 containing tobacco shreds will be described. There is no particular limitation on the material of the tobacco shreds contained in the aerosol source 11, and known materials such as lamina and midrib can be used. In addition, ground tobacco can be formed by grinding dried tobacco leaves into an average particle size of 20 µm to 200 µm, and then homogenizing and processing it into a chopped sheet (hereinafter also simply referred to as "homogenized sheet"). Further, the aerosol source 11 can be filled with a material obtained by chopping the homogenized sheet substantially parallel to the centerline direction of the substrate portion 10 to form a so-called "strand-type" filling material, and the homogenized sheet has a size similar to the size of the substrate portion 10 in the centerline direction.

[0125] In addition, in view of the filled aerosol source 11, the width of the tobacco fragments is preferably from 0.5 mm to 2.0 mm. The base portion 220 is preferably annular.

[0126] For the tobacco leaves used in the production of tobacco strands and homogenized sheets, various types of tobacco can be used. Examples that can be cited include yellow tobacco, burley tobacco, oriental tobacco or natural types, and other varieties of Nicotiana tabacum L. and Nicotiana rustica L., and mixtures thereof. Suitable blends of these varieties can be used in the mixture to achieve the desired taste. Details regarding tobacco varieties are disclosed in "Dictionary of Tobacco, Tobacco Academic Studies Center, March 31, 2009. 331". There are a variety of conventional methods for producing homogenized sheets, namely, methods for grinding tobacco leaves and processing them into homogenized sheets. According to the first method, paper sheets are produced using a papermaking process. According to the second method, a suitable solvent (such as water) is mixed with the ground tobacco leaves, and the mixture is homogenized. Thereafter, the homogenized material is cast in a thin layer on a metal plate or a metal plate belt and dried to obtain a cast sheet. According to the third method, a suitable solvent (such as water) is mixed with the ground tobacco leaves, and the mixture is homogenized. Then, the homogenized material is extruded into the form of a sheet and shaped to obtain a calendered sheet. Details of the homogenized sheet type are disclosed in "Tobacco Academic Studies Center, 2009.3.31".331".

[0127] The moisture content of the aerosol source 11 can be from 10% to 15% by mass, preferably from 11% to 13% by mass, relative to the total amount of the aerosol source 11. Such a moisture content suppresses the occurrence of roll stains and improves the rollability during the production process of the substrate portion 10.

[0128] There is no particular limitation on the aerosol source 11, and it can include extracts from various types of natural products and / or their components according to the application. Examples of the extracts and / or their components that can be cited include glycerol, propylene glycol, triacetin, 1,3 - butanediol, and mixtures thereof.

[0129] There is no particular limitation on the content of the extracts and / or their components in the aerosol source 11, but from the viewpoint of generating sufficient aerosol and imparting good flavor, it is generally more than 5% by mass, preferably more than 10% by mass, relative to the total amount of the aerosol source 11. The content of the extracts and / or their components in the aerosol source 11 is generally 50% by mass or less, preferably from 15% to 25% by mass.

[0130] The aerosol source 11 may include a fragrance. There is no particular limitation on the type of the fragrance, but menthol is particularly preferred from the viewpoint of imparting a good flavor. In addition, these fragrances may be used alone or in combination of two or more.

[0131] There is no particular limitation on the filling density of the aerosol source 11, but from the viewpoints of ensuring the performance of the flavor inhaler 1 and imparting a good flavor, it is generally 250 mg / cm³ or more, preferably 300 mg / cm³ or more. The filling density of the aerosol source 11 is generally 400 mg / cm³ or less, preferably 350 mg / cm³ or less.

[0132] The aerosol source 11 may further include a tobacco sheet. One tobacco sheet may be present, or two or more tobacco sheets may be present.

[0133] An example form that can be cited for the case where the aerosol source 11 includes one tobacco sheet is as follows: A tobacco sheet having a size on one side similar to the size of the filling material in the center line direction is filled while being folded multiple times in a direction parallel to the center line of the filling material (forming a so-called "gathered sheet"). Another example form that can be cited is a form in which a tobacco sheet having a size on one side similar to the size of the filling material in the center line direction is filled when wrapped in a direction orthogonal to the center line direction of the filling material.

[0134] An example form that can be cited for the case where the aerosol source 11 includes two or more tobacco sheets is as follows: A tobacco sheet having a size on one side similar to the size of the filling material in the center line direction is filled while being wrapped in a direction orthogonal to the center line direction of the filling material so as to be concentrically arranged.

[0135] "Concentrically arranged" means that the centers of all the tobacco sheets are arranged at substantially the same position. In addition, there is no particular limitation on the number of the tobacco sheets, and it may be, for example, two, three, four, five, six, or seven.

[0136] Two or more 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. In addition, these tobacco sheets may have the same thickness or different thicknesses.

[0137] There is no limitation on the thickness of each tobacco sheet, but from the viewpoints of balancing heat transfer efficiency and strength, a thickness of 150 μm to 1000 μm is preferred, and 200 μm to 600 μm is more preferred.

[0138] The aerosol source 11 can be manufactured in the following manner: preparing a plurality of tobacco sheets having different widths, preparing a laminate which is laminated such that the width decreases from a first side towards a second side, and then wrapping the laminate with a wrapping tube.

[0139] According to this manufacturing method, the plurality of tobacco sheets extend in the center line direction and are arranged concentrically around the center line CL.

[0140] In this manufacturing method, the laminate is preferably prepared such that after wrapping, a non-contact portion is formed between adjacent tobacco sheets. If there is a non-contact portion (gap) where the tobacco sheets do not contact each other between the plurality of tobacco sheets, a flavor flow path can be ensured and the flavor component delivery efficiency can be improved. At the same time, since the heat from the heating unit 121 can be transferred to the outer tobacco sheets through the contact portions of the plurality of tobacco sheets, a relatively high heat transfer efficiency can be ensured.

[0141] Examples of methods for preparing the laminate in order to provide a non-contact portion where the tobacco sheets do not contact each other between the plurality of tobacco sheets include: using embossed tobacco sheets; laminating without bonding on the entire surface between adjacent tobacco sheets; laminating between adjacent tobacco sheets with partial bonding; or laminating on the entire surface of a part between adjacent tobacco sheets with slight bonding such that peeling occurs after wrapping.

[0142] When preparing the matrix portion 10 including the wrapper paper 12, the wrapper paper 12 can be provided on the end surface of the first side of the laminate.

[0143] Polyhydric alcohols etc. (such as glycerin, propylene glycol or 1,3 - butanediol etc.) can be added to the tobacco sheets. The amount added to the tobacco sheets is preferably 5% to 50% by mass, more preferably 15% to 25% by mass, relative to the dry mass of the tobacco sheets.

[0144] The tobacco sheets can be produced by well-known methods (such as sheet forming, sizing or rolling). In addition, the homogenized sheets described above can also be used.

[0145] In the case of sheet forming, the tobacco sheets can be produced by a method including the following steps. 1) Coarsely grinding the dried tobacco leaves, extracting with water, and then separating into a water extract and a residue. 2) Drying and concentrating the water extract under reduced pressure. 3) Adding pulp to the residue, fibrillating the material using a refiner, and then forming into paper. 4) Adding the concentrated water extract to the sheet formed of paper and drying to form the tobacco sheets. In this case, a step of removing some components (such as nitrosamines) can also be added (see JP 2004 - 510422 A).

[0146] In the case of the grouting process, tobacco sheets can be produced by a method including the following steps. 1) Mix the ground tobacco leaves with water, pulp, and an adhesive. 2) Spread (cast) the mixture in a thin layer and dry it. In this case, a step can be added: exposing the slurry obtained by mixing the ground tobacco leaves with water, pulp, and an adhesive to ultraviolet or X-ray radiation to remove some components (such as nitrosamines).

[0147] In addition to the above, non-woven fabric tobacco sheets produced by a method including the following steps can also be used, as disclosed in WO 2014 / 104078 A1. 1) Mix granular tobacco leaves with an adhesive. 2) Insert the mixture between non-woven fabrics. 3) Mold the resulting laminate into a fixed shape by heat fusion bonding to obtain a tobacco sheet in the form of a non-woven fabric.

[0148] The type of raw material tobacco leaves used in each of the above methods can be the same as that described for the aerosol source 11 including tobacco strands.

[0149] There is no particular limitation on the composition of the tobacco sheet, but for example, the content of the tobacco raw material (tobacco leaves) is preferably 50% to 95% by mass relative to the total mass of the tobacco sheet. The tobacco sheet can also include an adhesive, and examples of such adhesives include guar gum, xanthan gum, carboxymethyl cellulose, sodium salt of carboxymethyl cellulose, etc. The amount of the adhesive is preferably 1% to 10% by mass relative to the total mass of the tobacco sheet. The tobacco sheet can further contain other additives. Examples of other additives that can be cited include fillers, such as pulp.

[0150] There is no particular limitation on the composition of the roll paper 12 for the substrate portion 10, and it can take a general form, examples of which include those having pulp as the main component. Regarding the pulp, in addition to using wood pulp such as softwood pulp and hardwood pulp to manufacture the roll paper 12, it can also be made by mixing non-wood pulp (such as flax pulp, hemp pulp, sisal pulp, esparto pulp, etc.) commonly used for roll paper 12 in tobacco products.

[0151] The types of pulp that can be used include chemical pulp, groundwood pulp, chemigroundwood pulp, and thermomechanical pulp obtained by kraft pulping, acid / neutral / alkaline sulfite pulping, and soda pulping, etc.

[0152] To produce the roll paper 12 by using pulp to adjust and homogenize the texture in the papermaking process, which adopts a fourdrinier paper machine, a cylinder mold paper machine, a combined round and short paper machine, etc. It should be noted that if necessary, a wet strength agent can be added to make the roll paper 12 water-resistant, or a sizing agent can be added to adjust the printing conditions of the roll paper 12. Internal additives for papermaking can also be added, such as aluminum sulfate, various types of anionic, cationic, non-ionic or amphoteric retention aids, drainage aids and paper strength enhancers, as well as papermaking additives (such as dyes, pH regulators, defoamers, resin control agents and slime control agents).

[0153] For example, the basis weight of the base paper of the roll paper 12 is usually 20 gsm or more, preferably 25 gsm or more. At the same time, the basis weight is usually 65 gsm or less, preferably 50 gsm or less, and even more preferably 45 gsm or less.

[0154] There is no particular limitation on the thickness of the roll paper 12, but from the perspectives of rigidity, air permeability and easy adjustment during papermaking, it is usually 10 μm or more, preferably 20 μm or more, and more preferably 30 μm or more. In addition, the thickness of the roll paper 12 is usually 100 µm or less, preferably 75 µm or less, and more preferably 50 µm or less.

[0155] The shape of the roll paper 12 used to produce the matrix part 10 can be, for example, square or rectangular.

[0156] When used as the roll paper 12 to wrap the aerosol source 11, the length of one side can be approximately 12 mm to 70 mm, and the length of the other side can be 15 mm to 28 mm, preferably 22 mm to 24 mm, and more preferably approximately 23 mm. When the roll paper 12 wraps the aerosol source 11 cylindrically, one end and the other end of the roll paper 12 can overlap approximately 2 mm in the circumferential direction and be glued together to form a cylindrical paper tube shape, with the aerosol source 11 filled inside. The size of the rectangular roll paper 12 can be determined by the size of the matrix part 10.

[0157] In addition to the above-mentioned pulp, the roll paper can also include a filling material. The content of the filling material can be, for example, 10% to 60% by mass, preferably 15% to 45% by mass, based on the total mass of the roll paper 12.

[0158] In the roll paper 12, the content of the filling material is preferably 15% to 45% by mass within the preferred basis weight range (25 gsm to 45 gsm).

[0159] In addition, when the basis weight is from 25 gsm to 35 gsm, the content of the filling material is preferably from 15% to 45% by mass, and when the basis weight is from 35 gsm to 45 gsm, the content of the filling material is preferably from 25% to 45% by mass.

[0160] Calcium carbonate, titanium dioxide, kaolin, or the like can be used as the filling material, but from the viewpoints of improving flavor, whiteness, etc., calcium carbonate is preferably used.

[0161] Various additives other than the base paper and the filling material can also be added to the roll paper 12. For example, a water resistance improver can be added to improve water resistance. The water resistance improver includes a wet strength agent (WS agent) and a sizing agent. Examples of the wet strength agent include urea-formaldehyde resin, melamine-formaldehyde resin, polyamide-epichlorohydrin (PAE), etc. In addition, examples of the sizing agent include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a saponification degree of 90% or more.

[0162] As an additive, a paper strength enhancer can be added, such as polyacrylamide, cationic starch, oxidized starch, CMC, polyamide-epichlorohydrin resin, and polyvinyl alcohol. In particular, it is known that the air permeability is improved by using a very small amount of oxidized starch (JP2017-218699 A).

[0163] A coating agent can be added to at least one of the two surfaces (i.e., the front surface and the back surface) of the roll paper 12. There is no particular limitation 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 include alginic acid and its salts (e.g., sodium salt), 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).

[0164] [Cooling portion 20]

[0165] The cooling portion 20 is a member provided adjacent to the substrate portion 10 and the filter portion 30 and formed by wrapping the sheet 21 into a cylinder or the like having a hollow (void) cross section. The cooling portion 20 generates an aerosol by cooling the vapor generated by heating the substrate portion 10.

[0166] Specifically, the cooling section 20 is a paper tube formed by winding a sheet 21 made of paper. The cooling section 20 is a so-called spiral paper tube, which is a tube formed by combining at least a plurality of sheets 21 containing paper and wrapping the sheets in a spiral shape. The spiral paper tube manufacturing method enables an easily formed paper tube with a circular cross-section. By adopting a spiral paper tube for the cooling section 20, the strength of the cooling section 20 can be improved while restricting the area of the cooling section 20. Further, a new smoking flavor can be imparted to the aerosol by combining and bonding a sheet member containing a flavor component, a flavor ingredient, a comminuted tobacco product, etc. with the paper.

[0167] Alternatively, the cooling section 20 can be a so-called straight paper tube, which is a paper tube formed by wrapping paper in a cylindrical shape in multiple layers. In the straight paper tube manufacturing method, the amount of glue used for sticking the paper can be reduced compared to the spiral paper tube manufacturing method.

[0168] In addition, the cooling section 20 can also be a paper tube formed by laminating at least a plurality of sheets 21 containing paper. By laminating a plurality of sheets 21, the strength of the cooling section 20 can be maintained even if the basis weight of each sheet 21 is small.

[0169] The cross-section of the cooling section 20 is substantially circular, and its outer diameter can be appropriately changed to match the size of the product, but is preferably approximately the same as the outer diameter of the filter 31 discussed below. It should be noted that when the cross-section is not circular, if it is imagined as a circle having the same area as its cross-sectional area, the above-mentioned outer diameter can adopt the outer diameter of this circle.

[0170] The size of the cooling section 20 in the centerline direction can be appropriately changed to match the size of the product, but is generally 5 mm or more, preferably 10 mm or more, more preferably 15 mm or more. In addition, the size of the cooling section 20 in the centerline direction is generally 35 mm or less, preferably 30 mm or less, more preferably 25 mm or less. By setting the size of the cooling section 20 in the centerline direction to be at least equal to the aforementioned lower limit, a sufficient cooling effect can be ensured to obtain a good flavor, and by setting the size to be at most equal to the aforementioned upper limit, losses caused by vapor and aerosol adhesion to the sheet 21 can be suppressed.

[0171] There is no particular limitation on the thickness of the sheet 21, and it can be, for example, 50 μm to 500 μm, or 100 μm to 250 μm. In addition, there is no particular limitation on the material of the sheet 21, and it can be, for example, a material having pulp as the main component, a material having polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, or aluminum foil as the main component, or any combination thereof.

[0172] The cooling portion 20 has been described as a portion formed by wrapping the sheet 21, but this is an example of a cylindrical member formed in a cylindrical shape, and the cooling portion is not limited to this configuration as long as the cross-section is hollow. The cooling portion 20 can also be formed, for example, from a synthetic resin tube or the like that already has a hollow cross-section.

[0173] The cooling portion 20 is provided with through-holes 60 (also referred to as "ventilation filters (Vf)" in the art), which are arranged concentrically in the circumferential direction. The through-holes 60 are holes that penetrate the sheet 21. Examples of the shape of the holes include polygons, rounded polygons, circles, ellipses, etc. The through-holes 60 are present in the region where air can flow into the flavor inhaler 1 from the outside, in other words, in the region that protrudes from the opening 142 when the flavor inhaler 1 is housed in the housing portion 140 of the inhalation device 100 with the wind.

[0174] The presence of the through-holes 60 allows the concentration of the inhaled flavor components and aerosol to be adjusted. Further, the presence of a plurality of through-holes 60 allows air to flow into the cooling portion 20 from the outside during inhalation, so that the temperature of the vapor and the air flowing in from the matrix portion 10 can be reduced. In addition, setting the position where the through-holes 60 are provided in the cooling portion 20 to be in a region at least 4 mm away from the boundary between the cooling portion 20 and the filter portion 30 in the direction along the cooling portion 20 not only allows the cooling capacity to be improved, but also makes it possible to suppress the retention of substances (products) generated by heating in the cooling portion 20, thereby increasing the amount of the product delivered.

[0175] It should be noted that the vapor generated by heating the matrix portion 10 (the aerosol serves as a condensation nucleus) liquefies when it comes into contact with the air from the outside due to the temperature decrease, and this can promote the generation of the aerosol.

[0176] When the plurality of through-holes 60 concentrically present in the cooling portion 20 are regarded as a set of through-holes, there can be one set of through-holes, or there can be two or more sets of through-holes. When there are two or more sets of through-holes, from the perspective of increasing the delivery amount of the components generated by heating, when there are two or more sets of through-holes, these sets of through-holes are preferably not provided in a region less than 4 mm away from the boundary between the cooling portion 20 and the filter portion 30 in the direction along the cooling portion 20.

[0177] Furthermore, if the flavor inhaler 1 is in the form of the substrate portion 10, the cooling portion 20, and the filter portion 30 wrapped by the tipping paper 40, it is preferable that the ventilation holes are provided at a position in the tipping paper 40 immediately above the through holes 60 provided on the cooling portion 20. When manufacturing such a flavor inhaler 1, the tipping paper 40 provided with ventilation holes overlapping the through holes 60 can be prepared and wrapped, but from the perspective of easy production, it is preferable to manufacture the flavor inhaler 1 without the through holes 60 and then form holes that penetrate both the cooling portion 20 and the tipping paper 40 simultaneously.

[0178] There is no particular limitation on the region where the through holes 60 exist, provided that from the perspective of improving the delivery of the product obtained by heating, the region is more than 4 mm away from the boundary between the cooling portion 20 and the filter portion 30 in the direction of the cooling portion 20. However, from the perspective of further improving the product delivery, the region is preferably at least 4.5 mm, more preferably at least 5 mm, even more preferably at least 5.5 mm away from the said boundary. The width w is generally still 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less. Furthermore, from the perspective of ensuring the cooling function, the region where the through holes 60 exist is preferably a region not exceeding 15 mm, more preferably not exceeding 10 mm, even more preferably not exceeding 7 mm away from the boundary between the cooling portion 20 and the filter portion 30.

[0179] Furthermore, taking the boundary between the cooling portion 20 and the substrate portion 10 as a reference, if the size of the cooling portion 20 in the center line direction is 20 mm or more, the region where the through holes 60 exist is preferably 5 mm or more, more preferably 10 mm or more, even more preferably 13 mm or more away from the boundary between the cooling portion 20 and the substrate portion 10 in the direction of the cooling portion 20. Furthermore, from the perspective of improving the delivery of the product obtained by heating, the region where the through holes 60 exist is preferably a region not exceeding 16 mm, more preferably not exceeding 15.5 mm, even more preferably not exceeding 15 mm, and particularly preferably not exceeding 14.5 mm away from the boundary between the cooling portion 20 and the substrate portion 10. The content is more preferably 10 mg to 200 mg, even more preferably 20 mg to 120 mg.

[0180] The through-hole 60 is provided such that the air inflow ratio from the through-hole 60 during inhalation at 17.5 ml / sec by the automatic smoking machine is 10% to 90% by volume. The "air inflow ratio" is the volume ratio of the air flowing in from the through-hole 60 when the flow rate of the air inhaled from the suction end is 100% by volume. The air inflow ratio is preferably 50% to 80% by volume, more preferably 55% to 75% by volume. These air inflow ratios can be achieved by selecting the number of each group of through-holes 60 in the through-hole within the range of 5 to 50, selecting the diameter of the through-hole 60 within the range of 0.1 mm to 0.5 mm, and combining these selections.

[0181] The air inflow ratio can be measured by a method conforming to ISO9512, using a wrapper quality measuring machine (such as SODIMAX D74 / SODIM produced by S.A.S.).

[0182] [Filter plug wrapper 40]

[0183] The filter plug wrapper 40 is wrapped around the outer circumferential surfaces of the substrate portion 10, the cooling portion 20, and the filter portion 30.

[0184] There is no particular limitation on the shape of the filter plug wrapper 40, and it can be, for example, square or rectangular.

[0185] There is no particular limitation on the basis weight of the filter plug wrapper 40, but it is generally 32 gsm to 60 gsm, preferably 33 gsm to 55 gsm, more preferably 34 gsm to 53 gsm.

[0186] There is no particular limitation on the air permeability of the filter plug wrapper 40, but it is generally 0 to 30,000 CORESTA units, preferably greater than 0 CORESTA units and not greater than 10,000 CORESTA units. Here, the "air permeability" is the value measured according to ISO 2965:2009, which represents the flow rate (cm³) of the gas passing through an area of 1 cm² per minute when the pressure difference between both sides of the paper is 1 kPa. 1 CORESTA unit (1 C.U.) constitutes cm³ / (min·cm²) at 1 kPa.U.

[0187] There is no particular limitation on the configuration of the filter plug wrapper 40, and it can be in a general form, examples of which include the form in which pulp is the main component. Regarding the pulp, in addition to using wood pulp such as softwood pulp and hardwood pulp to manufacture the filter plug wrapper 12, it can also be made by mixing non-wood pulp (such as linen pulp, hemp pulp, sisal pulp, esparto pulp, etc.) commonly used in cigarette papers for tobacco products. These pulps can be used alone or in combination with multiple types in any ratio.

[0188] The forms of pulp that can be used include chemical pulp obtained by kraft pulping, acid / neutral / alkaline sulfite pulping, and soda pulping, groundwood pulp, chemigroundwood pulp, and thermomechanical pulp, etc. In addition, the mouthpiece wrapper 40 can be manufactured by the manufacturing methods discussed above, or commercial products can be used.

[0189] In addition to the above materials, the mouthpiece wrapper 40 can also contain filler materials, examples of which can include metal carbonates (such as calcium carbonate and magnesium carbonate), metal oxides (such as titanium oxide, titanium dioxide, and aluminum oxide), metal sulfates (such as barium sulfate and calcium sulfate), metal sulfides (such as zinc sulfide), quartz, kaolin, talc, diatomaceous earth, gypsum, etc. Particularly from the perspective of improving whiteness and opacity and increasing the heating rate, calcium carbonate is preferably included. These filler materials can be used alone, or two or more filler materials can be used in combination.

[0190] Various additives other than the above materials and filler materials can also be added to the mouthpiece wrapper 40, and can include water resistance improvers to improve, for example, water resistance. The water resistance improvers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), etc. In addition, examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more.

[0191] A coating agent can be added to at least one of the two surfaces (i.e., the front surface and the back surface) of the mouthpiece wrapper 40. There is no particular limitation on the coating agent, but a coating agent that can form a film on the surface and reduce liquid permeability is preferred.

[0192] A part of the outer surface of the mouthpiece wrapper 40 can be coated with a lip release material. The lip release material refers to a material that is configured to facilitate the easy separation (substantially no adhesion) of the lips and the mouthpiece wrapper 40 when the user holds the filter part 30 of the flavor inhaler 1 in their mouth. The lip release material can include, for example, ethyl cellulose, methyl cellulose, nitrocellulose, etc. For example, the outer surface of the mouthpiece wrapper 40 can be coated with a lip release material by applying an ink based on ethyl cellulose or methyl cellulose to the outer surface of the mouthpiece wrapper 40.

[0193] [Other Embodiments of the Heat-Not-Burn Type Flavor Inhaler]

[0194] Figure 9The second embodiment of the heat-not-burn type flavor inhaler is illustrated. In (A), the separate filter 32 is located on the upstream side of the filter 31, and the filler 33 is located on the upstream side of the filter 31; in (B), the separate filter 32 is located on the downstream side of the filter 31, and the filler 33 is located on the upstream side of the filter 31; and in (C), the separate filter 32 is located on the downstream side of the filter 31, and the filler 33 is located on the downstream side of the filter 31.

[0195] Figure 9 The examples in are all flavor inhalers 2, where the substrate portion 10 includes a tip member 13 for preventing the aerosol source 11 from falling off the first side end face of the substrate portion 10, and the flavor inhaler additionally includes a separate filter 32 as the filter portion 230. The flavor inhaler 2 is different from the flavor inhalers in the Figure 8 embodiments in that the filter portion 230 corresponding to the filter portion 30 is different. The differences from the Figure 8 embodiments will now be described. The same reference numerals are used for Figure 8 and Figure 9 the same components in, and their detailed descriptions are omitted.

[0196] The filter portion 230 includes the filter 31 as a paper filter, a separate filter 32 (which is an independent filter separate from the filter 31), a filler 33, and a roll paper 35 (which is present between the filter 31 and the tipping paper 40 and wraps around the outer circumferential surface of the filter 31). The filter portion 230 is connected (coupled) to the cooling portion 20 by integrally wrapping the cooling portion 20 and the filter portion 230 with the tipping paper 40. Moreover, it is preferable to wrap each of the filter 31 and the separate filter 32 with a separate roll paper 35, and then wrap them together with another separate roll paper 35.

[0197] The cross-section of the separate filter 32 of the filter portion 230 is substantially circular, and its outer diameter can be appropriately changed to match the size of the product, but for example, it includes 22 mm to 27 mm. It should be noted that when the cross-section is not circular, if it is imagined as a circle having the same area as its cross-sectional area, the above outer diameter can adopt the outer diameter of this circle.

[0198] The air resistance of the filter portion 230 and its size in the centerline direction can be exemplified as being the same as the air resistance and size of the filter portion 30 in the centerline direction. The shapes and sizes of the filter 31 and the separate filter 32 can be appropriately adjusted so that the shape and size of the filter portion 230 are within the above ranges.

[0199] There is no particular limitation on the separate filter 32, provided that it includes a filtering material and has the general functions of a filter. The general functions of a filter that can be cited include, for example, adjusting the amount of air mixed when inhaling an aerosol or the like, reducing flavor, and reducing the amounts of nicotine, tar, etc., but not all of these functions need to be provided. Further, in the heat-not-burn type flavor inhaler 1 (which tends to have fewer generated components and a lower aerosol source 11 filling rate than cigarette products), an important function of the filter is also to prevent the aerosol source 11 from falling out while suppressing the filtering function. It should be noted that the separate filter 32 may have a lower filtering rate and a higher hardness than the filter 31.

[0200] The filtering material constituting the separate filter 32 is, for example, a filling material formed into a cylindrical shape, such as cellulose acetate fiber, non-woven fabric, or pulp paper. Further, a paper filter filled with sheet pulp paper can be used. In addition to these filling materials, inorganic adsorbents (such as activated carbon), sepiolite, palygorskite, zeolite, activated carbon fiber, activated alumina, sepiolite mixed paper, silica gel, activated clay, vermiculite, diatomaceous earth, and pulp, various fibers, ion exchange resins, and other polymer porous bodies can be used. The separate filter may include a crushable additive release container (e.g., a capsule), which includes a crushable outer shell, such as gelatin.

[0201] There is no particular limitation on the filling density of the filtering material, but it is generally 90 mg / cm³ to 360 mg / cm³, preferably 150 mg / cm³ to 240 mg / cm³.

[0202] Figure 15 A longitudinal cross-section of a flavor inhaler 3 according to the third embodiment is illustrated. Figure 15 (A) shows a state where the filler 33 is located on the first side of the aerosol modifier 34, and (B) shows a state where the filler 33 is located on the second side of the aerosol modifier 34 and the second side (downstream side) end of the filter part 330 is located at a position at least a predetermined distance from the end of the filler 33.

[0203] The flavor inhaler 3 according to the third embodiment is different from the flavor inhaler 1 according to the first embodiment in that the filter part 330 corresponding to the filter part 30 is different. The differences from the first embodiment will be described below. In the first embodiment and the third embodiment, the same components are denoted by the same reference numerals, and detailed descriptions thereof are omitted.

[0204] The filter section 330 includes a filter 31 of a paper filter, a filler 33 that changes the flow path in the filter 31, an aerosol modifier 34 that modifies the aerosol, and a roll paper 35 that is present between the filter 31 and the tipping paper 40 and wraps around the outer circumferential surface of the filter 31. The filter section 330 is connected (coupled) to the cooling section 20 by integrally wrapping the cooling section 20 and the filter section 330 using the tipping paper 40. It should be noted that it is not necessary to provide the roll paper 35.

[0205] The aerosol modifier 34 is disposed within the filter section 330.

[0206] There is no particular limitation on the position of the aerosol modifier 34 in the longitudinal cross-section of the filter section 330, but preferably, the aerosol modifier and the filler 33 are arranged in a straight line in the center line direction. In other words, the aerosol modifier 34 is preferably arranged in a straight line with the filler 33 in the longitudinal direction of the filter section 330.

[0207] Specifically, the aerosol modifier 34 is preferably disposed at a position corresponding to the filler 33, such as a position on the second side (downstream side) through which the aerosol that has passed through the filler 33 passes (see Figure 15 (A)), or a position where the aerosol that has impinged on the aerosol modifier 34 passes through the filler 33. By disposing the aerosol modifier 34 at a position corresponding to the filler 33, the transport efficiency of the modified aerosol can be improved. In addition, as Figure 15 shown in (B), by disposing the aerosol modifier 34 on the first side (upstream side) of the filler 33 in a straight line with the filler 33 in the center line direction, the modified aerosol can pass through the filler during inhalation.

[0208] The aerosol modifier 34 is, for example, a frangible capsule that releases the contents containing a flavor component when an external force is applied.

[0209] The aerosol modifier 34 is preferably embedded at a position such that the contents do not leak from the end faces on the first side and the second side of the filter 31. In other words, the aerosol modifier 34 is preferably disposed at a position such that the diffusion of the contents is maintained within the filter section 330.

[0210] The aerosol modifier 34 includes contents containing at least one of a flavor component and a fragrance component, and a capsule body that houses these contents. The aerosol modifier 34 is crushed by the user, causing the capsule body to rupture and the internal contents to be released. Crushing involves, for example, pressing the roll paper 35 and the tipping paper 40 between the thumb and the index finger to apply pressure to the aerosol modifier 34, which is a frangible capsule.

[0211] As described above, in each embodiment, the filter portion 30 of the flavor inhaler, etc. includes a paper filter (filter 31) filled with sheet members to form voids in the longitudinal direction, and a filler 33 disposed within the paper filter and changing the flow path within the paper filter, wherein the downstream end of the filter portion 30 is located at a position at least a predetermined distance from the end of the filler. With this configuration, a flavor inhaler filter portion can be provided in which no holes are formed at the end of the filter.

[0212] In addition, the heat-not-burn flavor inhalers 1, 2, and 3 each include a substrate portion 10 that includes at least an aerosol source 11. Generally, the flavor inhaler 1, etc. additionally includes: a cooling portion 20 that cools the vapor generated by heating the substrate portion 10 to generate an aerosol; a filter portion 30 through which the aerosol passes; and a tipping paper 40 wrapped around the outer circumferential surfaces of the substrate portion 10, the cooling portion 20, and the filter portion 30. Further, the filter portion 30 includes a filter 31 and a filler 33, the filter being a paper filter filled with sheet members, and the filler being located within the filter 31 and having a lower filtration rate than the filtration rate of the filter 31. It should be noted that from the perspective of making the size in the centerline direction more compact, the flavor inhaler 1 does not need to include the cooling portion 20. With this configuration, a flavor inhaler can be provided in which no holes are formed at the end of the filter.

[0213] [Combustion Heating Type Flavor Inhaler]

[0214] Figure 10 and Figure 11 is a diagram showing a longitudinal cross-section of a flavor inhaler 4 according to a fourth embodiment.

[0215] The flavor inhaler 4 according to the fourth embodiment is different from the flavor inhaler 1 according to the first embodiment in terms of the usage mode. The flavor inhaler 4 according to the fourth embodiment differs from the flavor inhaler 1 according to the first embodiment in that the mouthpiece portion 450 corresponding to the mouthpiece section 50 and the communication hole 460 corresponding to the through-hole 60 are different. The differences from the first embodiment will be described below. In the first embodiment and the fourth embodiment, the same components are denoted by the same reference numerals, and detailed descriptions thereof are omitted.

[0216] The flavor inhaler 4 is a combustion type flavor inhaler. The flavor inhaler is used by burning the end surface of the first side opposite to the second side, and the second side is the end side that the user holds in their mouth for inhalation. The aerosol source 11 contained in the substrate portion 10 generates vapor through heating associated with combustion, and the vapor is used to generate an aerosol.

[0217] The cross-section of the flavor inhaler 4 is substantially circular, and its outer diameter can be appropriately changed to match the size of the product, but is generally from 16 mm to 27 mm, preferably from 22 mm to 25 mm. It should be noted that when the cross-section is not circular, if it is imagined as a circle having the same area as its cross-sectional area, the above outer diameter can adopt the outer diameter of this circle.

[0218] The size of the flavor inhaler 4 in the centerline direction can be appropriately changed to match the size of the product, but is generally from 60 mm to 120 mm, preferably from 80 mm to 100 mm.

[0219] The mouthpiece portion 450 is constituted by the filter portion 30.

[0220] The size of the mouthpiece portion 450 in the centerline direction can be appropriately changed to match the size of the product, but is generally from 20 mm to 40 mm, preferably from 25 mm to 30 mm.

[0221] Additionally, the mouthpiece portion 450 is provided with a plurality of communication holes 460 arranged circumferentially and concentrically. The communication holes 460 are holes that allow the air flowing in from the ventilation holes provided in the tipping paper 40 to communicate with the voids inside the filter 31. By adjusting the amount of air flowing in from the communication holes 460, the concentration of the aerosol inhaled by the user can be adjusted.

[0222] Furthermore, in the case where the filter portion 30 of the mouthpiece portion 450 has a form in which the filter 31 is wrapped by the wrapper paper 35 and the tipping paper 40, preferably, the communication holes 460 are provided at least in the positions of the wrapper paper 35 corresponding to the ventilation holes provided in the tipping paper 40. When manufacturing the flavor inhaler 4 having such a mouthpiece portion 450, the tipping paper 40 can be wrapped so that the communication holes 460 and the ventilation holes provided in the tipping paper overlap, but from the perspective of easy production, it is preferable to manufacture the flavor inhaler 4 without the communication holes 460 and then form holes that penetrate both the mouthpiece portion 450 and the tipping paper 40.

[0223] From the perspective of improving the air inflow efficiency, the region where the communication holes 460 exist is preferably a region where the packing density of the sheet member constituting the filter 31 is relatively low, in other words, the region of the filter 31 where the filling material 33 is not provided.

[0224] In Figure 11 In the example shown in (A), the filling material 33 smaller than the filter 31 in the centerline direction is positioned at the center of the filter 31, and the communication holes 460 are provided in the region of the filter 31 where the filling material 33 is not provided. Specifically, the communication holes 460 are provided in the region on the upstream side of the filling material 33. In Figure 11In the example shown in (B), one filler 33 is located at the end portion on the first side (the substrate portion 10 side) of the filter 31, and another filler 33 is located at a distance from the end portion of the filter 31 on the second side (downstream side), and the communication hole 460 is provided in the region between the two fillers 33.

[0225] The communication holes 460 are not limited to the configuration discussed above, provided that they are provided in a region of the filter 31 where the filler 33 is not provided.

[0226] Figure 12 and Figure 13 1 is a diagram showing a longitudinal section of a flavor inhaler 5 according to a fifth embodiment. Figure 12 (A) shows a state where the filler 33 is located on a first side within the filter 31 , and (B) shows a state where the filler 33 is located on a second side within the filter 31 .

[0227] The flavor inhaler 5 according to the fifth embodiment differs from the flavor inhaler 4 according to the fourth embodiment in that the filter portion 530 corresponding to the filter portion 30 is different. The differences from the fourth embodiment will be described below. The same reference numerals are used for the same components in the flavor inhaler 4 and the flavor inhaler 5, and detailed description thereof will be omitted.

[0228] The filter portion 530 includes the filter 31, which is a paper filter; the separate filter 32, which is an independent filter separate from the filter 31; the filler 33, which has a filtration rate lower than that of the filter 31; and the wrapping paper 35, which is present between the filter 31 and the tipping paper 40 and wrapped around the outer circumferential surface of the filter 31. The filter portion 530 is connected (coupled) to the base portion 10 by integrally wrapping the base portion 10 and the filter portion 230 with the tipping paper 40. Furthermore, it is preferable to wrap each of the filter 31 and the separate filter 32 with a separate wrapping paper 35, and then wrap them together with another separate wrapping paper 35.

[0229] The configuration of the individual filter 32 in the filter portion 530 can be exemplified as the same as the individual filter 32 included in the filter portion 230 according to the second embodiment. The shapes and sizes of the filter 31 and the individual filter 32 can be appropriately adjusted so that the shape and size of the filter portion 530 are within the above range.

[0230] The filter portion 530 includes a separate filter 32 connected to the second side of the substrate portion 10 and a filter 31 positioned on the second side of the separate filter 32. The separate filter 32 is positioned on the upstream side, and the filter 31 is positioned on the downstream side. Figure 12As shown in (A), a filler 33 smaller than the filter 31 in the center line direction can be provided on the first side (upstream side) inside the filter 31, and the ventilation holes 460 can be provided in the area on the downstream side of the filler 33. Alternatively, as Figure 12 shown in (B), a filler 33 smaller than the filter 31 in the center line direction can be provided on the second side (downstream side) inside the filter 31, and the ventilation holes 460 can be provided in the area on the upstream side of the filler 33.

[0231] The configuration of the filter section 530 is not limited to Figure 12 the examples shown in (A) and (B), and the positional relationship between the filter 31 and the separate filter 32 can be changed.

[0232] Figure 13 FIG. is a longitudinal sectional view of another flavor inhaler 5 according to the fifth embodiment, where (A) is a view showing a state in which the filler 33 is positioned on the first side inside the filter 31, and (B) is a view showing a state in which the filler 33 is positioned on the second side inside the filter 31.

[0233] The filter section 530 includes a filter 31 connected to the second side of the substrate section 10 and a separate filter 32 positioned on the second side of the filter 31. The filter 31 is positioned on the upstream side, and the separate filter 32 is positioned on the downstream side. As Figure 13 shown in (A), a filler 33 smaller than the filter 31 in the center line direction can be provided on the first side (upstream side) inside the filter 31, and the ventilation holes 460 can be provided in the area on the downstream side of the filler 33. Alternatively, as Figure 13 shown in (B), a filler 33 smaller than the filter 31 in the center line direction can be provided on the second side (downstream side) inside the filter 31, and the ventilation holes 460 can be provided in the area on the upstream side of the filler 33.

[0234] As described above, in each embodiment, the filter section 30 for a flavor inhaler, etc. includes a paper filter (filter 31) filled with sheet members to form voids in the longitudinal direction, and a filler 33 provided inside the paper filter and changing the flow path inside the paper filter, where the downstream end of the filter section 30 is located at a position at least a predetermined distance from the end of the filler. With this configuration, a flavor inhaler filter section and a flavor inhaler can be provided in which no holes are formed at the end of the filter.

[0235] <Overview>

[0236] It should be noted that the present disclosure includes the following features.

[0237] (1)A flavor inhaler filter section includes a paper filter filled with sheet members to form voids in the longitudinal direction, and a filler disposed within the paper filter to change the flow path within the paper filter, wherein the downstream end of the filter section is located at a position that is a predetermined distance or more from the end of the filler.

[0238] (2)The flavor inhaler filter section as disclosed in (1), wherein the filler has a flat surface, and the flat surface is disposed on the downstream end side.

[0239] (3)The flavor inhaler filter section as disclosed in (2), wherein the filler is cylindrical.

[0240] (4)The flavor inhaler filter section as disclosed in any one of (1) to (3), wherein the filler is a hollow member.

[0241] (5)The flavor inhaler filter section as disclosed in any one of (2) to (4), wherein the predetermined distance is 1 / 2 × A × (where A is the diameter of the outer peripheral circle of the flat surface).

[0242] (6)The flavor inhaler filter section as disclosed in (4) or (5), wherein the hollow member at least includes paper.

[0243] (7)The flavor inhaler filter section as disclosed in (6), wherein the hollow member is a straight paper tube obtained by wrapping paper in a cylindrical shape or a spiral paper tube obtained by obliquely wrapping strip-shaped paper.

[0244] (8)The flavor inhaler filter section as disclosed in (1), wherein the paper filter is a filter obtained by gathering the sheet members.

[0245] (9)The flavor inhaler filter section as disclosed in (1) or (8), wherein the paper filter is a filter obtained by curling a sheet member made of paper or non-woven fabric.

[0246] (10)The flavor inhaler filter section as disclosed in any one of (1) to (9), wherein the filling density of the paper filter is 90 mg / cm³ to 720 mg / cm³.

[0247] (11)A flavor inhaler includes: the filter section as disclosed in any one of (1) to (10); and a substrate section that includes an aerosol source.

[0248] (12)The flavor inhaler disclosed in (11), wherein the flavor inhaler is a heat-not-burn flavor inhaler.

[0249] (13)The flavor inhaler disclosed in (11), wherein the flavor inhaler is a combustible flavor inhaler.

[0250] List of reference numerals

[0251] 1, 2... heat-not-burn flavor inhalers, 4, 5... combustible heat flavor inhalers, 10... matrix portion, 11... aerosol source, 20... cooling portion, 30, 230, 530... filter portions, 31 filter, 32... separate filter, 33... filler, 35... roll paper, 40... tipping paper, 50... mouthpiece section, 60... through hole, 460... communication hole.

Claims

1. A flavor inhaler filter part, comprising a paper filter filled with sheet members to form voids in the longitudinal direction, and a filler disposed within the paper filter to change the flow path within the paper filter, wherein the downstream end of the filter part is located at a position at a predetermined distance or greater from the end of the filler.

2. The flavor inhaler filter portion according to claim 1, wherein, The filler has a flat surface, and the flat surface is disposed on the downstream end side.

3. The flavor inhaler filter portion according to claim 2, wherein The filler is cylindrical.

4. The flavor inhaler filter portion according to claim 3, wherein, The filler is a hollow member.

5. The flavor inhaler filter portion according to any one of claims 2 to 4, wherein, The predetermined distance is 1 / 2 × A × (where A is the diameter of the outer peripheral circle of the flat surface).

6. The flavor inhaler filter portion according to claim 4, wherein, The hollow member comprises at least paper.

7. The flavor inhaler filter portion according to claim 6, wherein, The hollow member is a straight paper tube obtained by wrapping paper in a cylindrical shape or a spiral paper tube obtained by obliquely wrapping a strip of paper.

8. The flavor inhaler filter portion according to claim 1, wherein, The paper filter is a filter obtained by gathering the sheet members.

9. The flavor inhaler filter portion according to claim 1 or 8, wherein, The paper filter is a filter obtained by curling a sheet member made of paper or non-woven fabric.

10. The flavor inhaler filter portion according to any one of claims 1 to 9, wherein, The filling density of the paper filter is from 90 mg / cm³ to 720 g / cm³.

11. An aroma inhaler, comprising: The filter part according to any one of claims 1 to 10; and a substrate part comprising an aerosol source.

12. The flavor inhaler according to claim 11, wherein, The flavor inhaler is a heat-not-burn type flavor inhaler.

13. The flavor inhaler according to claim 11, wherein, The flavor inhaler is a combustion type flavor inhaler.

Images