Aerosol suction cartridge and mouthpiece for aerosol suction cartridge

Abstract

To provide a mouthpiece for an aerosol suction cartridge that is improved in permeability of aerosol, effectively radiates the heat, has excellent cooling effect for aerosol, or is improved in permeability and has low suction resistance.MEANS FOR SOLVING THE PROBLEM: A mouthpiece 18 includes: a tubular member 181 having a circular tube shape in which a through-hole is formed in the center; and a sealing member 182 for sealing the through-hole partially or entirely. The sealing member 182 is formed of a raw material having permeability, such as a nonwoven fabric or sponge, especially a sheet-like material.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an aerosol inhalation cartridge for resistive or inductive heating and a mouthpiece for the aerosol inhalation cartridge. [Background technology]

[0002] In recent years, tobacco products that use a method of heating a tobacco cartridge containing tobacco ingredients without using a flame and inhaling the vaporized tobacco ingredients have become widely known. In addition, due to the diversification of tastes, aerosol inhalation cartridges that use cartridge products to enjoy the aroma and flavor of plants that do not contain tobacco ingredients without using a flame, just like tobacco, are also becoming known.

[0003] Such an aerosol suction cartridge generates an aerosol by heating an aerosol-forming member in which a filling material is accumulated. As a method for heating the aerosol-forming member, (1) a method (resistance heating type) in which an aerosol suction cartridge is inserted into a heating blade installed inside a heating device and the heating blade is electrically heated to heat the filling material (see, for example, Patent Document 1), and (2) a method (induction heating type) in which an induction heating member, which is a part mainly composed of a ferromagnetic material, is disposed in advance inside the filling material of the aerosol-forming member, and an alternating magnetic field generated by the induction heating device generates hysteresis loss and Joule heat inside the induction heating member to heat it (induction heating) (see, for example, Patent Document 2) are known.

[0004] Here, it is known that the breathability of the aerosol in the aerosol suction cartridge greatly affects the user's feeling of use. In addition, since the filling material is heated to a high temperature of several hundred degrees Celsius, the generated aerosol also becomes hot, and using it as it is is problematic in terms of the deterioration of the user's feeling of use and safety. In addition, if the breathability of the mouthpiece is poor and the suction resistance is high, it is problematic because it deteriorates the user's feeling of use. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Special Publication No. 2015-519915 [Patent Document 2] JP 2021-175399 A Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a mouthpiece for an aerosol inhalation cartridge which has good breathability for the aerosol, effectively dissipates heat from the aerosol, and has a high cooling effect for the aerosol, or has good breathability and low inhalation resistance. [Means for solving the problem]

[0007] In order to solve the above problem, the invention described in claim 1 is a mouthpiece for an aerosol suction cartridge, comprising a circular tubular member having a through hole formed in the center, and a sealing member that seals part or all of the through hole of the tubular member, wherein the sealing member is made of a breathable material. The invention described in claim 2 is a mouthpiece for an aerosol suction cartridge described in claim 1, characterized in that the sealing member is sheet-shaped and is installed on one or both of the two ends of the through hole. The invention described in claim 3 is a mouthpiece for an aerosol suction cartridge described in claim 1, characterized in that one or more slit-shaped notches are formed in a part of the longitudinal direction of the tubular member or in a part of the circumferential direction of the side surface, and one or more capsules containing a flavor additive are stored inside the through hole. The invention described in claim 4 is a mouthpiece for an aerosol suction cartridge described in claim 3, characterized in that the slit-shaped cut is formed in an I-shape, T-shape, L-shape, V-shape, U-shape, H-shape or C-shape. The invention described in claim 5 is a mouthpiece for an aerosol suction cartridge described in claim 1, characterized in that one or more capsules containing a flavor additive are stored inside the through hole, and the capsules are wrapped in a rod shape with wrapping paper to form a capsule package. The invention described in claim 6 is a mouthpiece for an aerosol suction cartridge described in claim 5, characterized in that the capsule packaging is secured to the capsule by twisting the wrapping paper around the capsule, with the longitudinal direction as an axis. The invention described in claim 7 comprises a cylindrical paper tube member having an aerosol generating source therein, a cylindrical mouthpiece formed of a breathable material, and a sheet-like exterior member for connecting the paper tube member and the mouthpiece to form a rod shape, the mouthpiece being disposed linearly with the paper tube member, and the exterior member winding the paper tube member and the mouthpiece over a part or the entirety thereof. The aerosol suction cartridge is characterized by the above. An eighth aspect of the present invention provides the aerosol suction cartridge according to the seventh aspect, wherein the mouthpiece has a part of its suction side exposed. The invention described in claim 9 is the aerosol suction cartridge described in claim 7, characterized in that the connecting portion between the mouthpiece and the paper tube member is arranged such that a covered portion covered by the exterior member and an exposed portion where the mouthpiece and the paper tube member are exposed are alternately arranged in the circumferential direction of the mouthpiece. In the invention described in claim 10, when the exterior member is wound around the mouthpiece and the paper tube member, both ends of the exterior member in the winding direction do not overlap with a part of the exterior member. 8. The aerosol suction cartridge according to claim 7. The invention described in claim 11 is characterized in that the exterior member is formed of a breathable material. 8. The aerosol suction cartridge according to claim 7. The invention described in claim 12 is the aerosol suction cartridge described in claim 7, characterized in that a covered portion covered by the outer casing and an exposed portion to which the mouthpiece or the paper tube member is exposed are arranged alternately in the longitudinal direction of the mouthpiece. The invention described in claim 13 is the aerosol suction cartridge described in claim 7, characterized in that the outer casing is trapezoidal in shape, with the length of the upper base being shorter than the outer periphery of the paper tube material and the length of the lower base being longer than the outer periphery of the mouthpiece, and when the mouthpiece and the paper tube material are wound with the upper base side facing the paper tube material side and the lower base side facing the suction side, the lower base side partially overlaps and the upper base side does not overlap, and part of the mouthpiece is exposed in a V-shape. The invention described in claim 14 is the aerosol suction cartridge described in claim 7, characterized in that the exterior member has one or more circular, polygonal, or slit-shaped openings formed therein. The invention described in claim 15 is a mouthpiece for an aerosol suction cartridge, characterized in that it has a cylindrical shape made of a breathable material and has activated carbon attached to the inside of the cylindrical shape. The invention described in claim 16 is an aerosol suction cartridge comprising: a cylindrical paper tube member having an aerosol generating source therein; a cylindrical mouthpiece made of a breathable material; and a sheet-like exterior member for connecting the paper tube member and the mouthpiece to form a rod shape, wherein activated carbon is sandwiched between the mouthpiece and the paper tube member. The invention described in claim 17 is an aerosol suction cartridge comprising: a cylindrical paper tube member having an aerosol generating source therein; a cylindrical mouthpiece made of a breathable material; and a sheet-like exterior member for connecting the paper tube member and the mouthpiece to form a rod shape, wherein activated carbon is sandwiched between the mouthpiece and the exterior member. The invention described in claim 18 is a mouthpiece for an aerosol suction cartridge, characterized in that it has a cylindrical shape made of a breathable material and has linear, planar or dot-like irregularities formed on the side of the cylindrical shape. Effect of the Invention

[0008] According to this invention, the inside of the mouthpiece is a hollow through hole, which improves the breathability of the mouthpiece, thereby reducing the inhalation resistance of the aerosol and increasing the amount generated, and also effectively dissipates the heat of the aerosol, allowing for efficient cooling, thereby improving the user's comfort and safety.

[0009] In addition, by having an exposed portion where part of the mouthpiece is exposed and an exterior member that is breathable, outside air is taken into the inside of the mouthpiece, and the improved breathability of the mouthpiece reduces the aerosol's inhalation resistance and increases the amount of aerosol generated. In addition, by effectively dissipating the heat of the aerosol, efficient cooling is possible, thereby improving the user's usability and safety.

[0010] Furthermore, the uneven shape formed on the side allows air to easily enter the inside of the mouthpiece from the outer periphery, promoting thermal diffusion of the generated aerosol while reducing the inhalation resistance of the aerosol and improving breathability. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic cross-sectional side view of an aerosol suction cartridge using a mouthpiece according to a first embodiment of the invention. [Diagram 2] 1 is a schematic perspective view of a mouthpiece according to a first embodiment of the invention. [Diagram 3] 1 is a schematic perspective view of a first modified example of the mouthpiece according to the first embodiment of the invention. [Figure 4]1A is a schematic cross-sectional side view of a first modified example of a mouthpiece in accordance with a first embodiment of the present invention, FIG. 1B is a planar portion of the mouthpiece, and FIG. 1C is a cross-sectional side view showing the mouthpiece in use. [Diagram 5] FIG. 1 is a schematic perspective view showing a state in which a mouthpiece according to a first modified example of the first embodiment of the invention is used. [Figure 6] 1A is a schematic cross-sectional side view of a second modified example of the mouthpiece in accordance with the first embodiment of the invention, FIG. 1B is a planar portion of the mouthpiece, and FIG. 1C is a cross-sectional side view showing the mouthpiece in use. [Figure 7] 3 is a schematic plan view showing a third modified example of the mouthpiece according to the first embodiment of the invention. [Figure 8] 3 is a schematic plan view showing a third modified example of the mouthpiece according to the first embodiment of the invention. [Figure 9] FIG. 11 is a schematic perspective view of a fourth modified example of the mouthpiece according to the first embodiment of the invention. [Figure 10] 11 is a schematic cross-sectional side view of a fifth modified example of the mouthpiece according to the first embodiment of the invention. FIG. [Figure 11] FIG. 11 is a schematic perspective view of an aerosol suction cartridge using an exterior member according to a second embodiment of the invention. [Figure 12] FIG. 11 is a schematic perspective view of an aerosol suction cartridge using an exterior member according to a second embodiment of the invention. [Figure 13] FIG. 11 is a schematic cross-sectional side view of an aerosol suction cartridge using a mouthpiece according to a third embodiment of the invention. [Figure 14] FIG. 11 is a schematic cross-sectional side view of a mouthpiece according to a third embodiment of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The embodiments of the present invention will be described with reference to the accompanying drawings. Note that in the drawings, the size, intervals, number and other details of the components in the drawings are greatly exaggerated or simplified compared to the actual objects in order to aid in visibility and understanding.

[0013] First embodiment Fig. 1 is a schematic side cross-sectional view of an aerosol suction cartridge 10 equipped with a mouthpiece 18 according to the first embodiment of the invention, and Fig. 2 is a schematic perspective view of the mouthpiece 18 according to the first embodiment of the invention. The aerosol suction cartridge 10 is formed into a cylindrical shape as a whole by linearly arranging a seal member 17, an aerosol-forming member 1, a support member 15, and a mouthpiece 18. In the first embodiment, the seal member 17, the aerosol-forming member 1, and the support member 15 are stored in a cylindrical cardboard tube member 16, the support member 15 side is connected to one end of the mouthpiece 18, and the periphery of the connected portion of the cardboard tube member 16 and the mouthpiece 18 are wrapped in a sheet-like exterior member 14 and integrally connected, so that the aerosol suction cartridge 10 is formed into a long and thin cylindrical shape as a whole.

[0014] The cardboard tube member 16 is formed of a flexible material such as paper, but when it is formed into a cylindrical shape, it is preferable that it has a hardness sufficient to maintain the shape. Here, "elongated" means that one direction is longer than the other direction in a three-dimensional shape. In addition, in this specification, "elongated cylindrical shape (cylindrical shape)" means that the height of the cylinder (i.e., the component perpendicular to the bottom surface) is longer than the diameter of the circle that is the bottom surface of the cylinder (cylinder). Hereinafter, when the "height direction (of the cylinder)" is used in the aerosol-forming substrate 1, it is synonymous with the "longitudinal direction (of the cylinder)" or the "direction perpendicular to the bottom surface (of the cylinder)".

[0015] The aerosol suction cartridge 10 in the first embodiment is formed to have a diameter of 4.0 mm to 7.5 mm, more preferably 5.0 mm to 7.0 mm, and a length (in the longitudinal direction of the cylinder) of 40 mm to 80 mm. If the outer diameter of the aerosol suction cartridge 10 is set in the range of 6.5 to 7.5 mm, the aerosol suction cartridge 10 is fitted with an insertion part provided in the induction heating device into which the aerosol suction cartridge 10 is inserted with a moderate force, so that the aerosol suction cartridge 10 can be easily attached and detached while allowing the aerosol suction cartridge 10 to be suitably held in the induction heating device. If the length of the aerosol suction cartridge 10 is set to 40 mm or more, it becomes longer than the length of the insertion part provided in the induction heating device for receiving the aerosol suction cartridge 10, so that even if the aerosol suction cartridge 10 is inserted into the induction heating device, the mouth can be exposed from the induction heating device, and the length required for the user to inhale the aerosol can be secured.

[0016] As shown in Fig. 1, the aerosol-forming member 1 is housed inside an interior member 11 made of a sheet-like material formed into a cylindrical shape, and includes an induction heating member 13 that generates heat in response to an external alternating magnetic field, and a filler 12 made of a material that is an aerosol generation source. The length (in the longitudinal direction of the cylinder) is preferably set to about 10 to 30 mm. As with the cardboard tube member 16, the material of the interior member 11 is preferably a thin and flexible material such as paper.

[0017] The outer diameter of the aerosol-forming member 1 is a roughly constant value along the central axis. This outer diameter is, for example, preferably in the range of 4.0 mm to 7.5 mm, and more preferably in the range of 5.0 mm to 7.0 mm.

[0018] <About filling 12> The filler 12 is made of a material formed by mixing aerosol formers that generate aerosols, microcrystalline cellulose, additives that add flavor, preservatives, adhesives or thickeners, etc. with dried and ground tobacco plants or non-tobacco plants, forming the mixture into a sheet, for example, and cutting the mixture into a predetermined width and length. The filler 12 may have various shapes. For example, the filler may be in the form of a sheet, a strip, a paste, a granule (including granules) or powder, a porous material, a rod, a plate, a fiber, a small piece, or a mixture of these.

[0019] In addition, when the filler 12 is configured in a strip shape, the cross section perpendicular to the central axis is substantially rectangular, and the ratio of the long side to the short side of the cross section is preferably, for example, in the range of 1:1 to 30:1. The length of the long side is preferably in the range of 0.1 mm to 7.5 mm, more preferably in the range of 0.1 mm to 3.0 mm. The length of the short side is preferably in the range of 0.1 mm to 1.0 mm, more preferably in the range of 0.1 mm to 0.5 mm. In addition, the length of the filler 12 is substantially the same as the length of the aerosol-forming member 1 in the longitudinal direction, for example, preferably in the range of 10 mm to 25 mm, more preferably in the range of 10 mm to 20 mm. An example of the dimensions of such a filler 12 is a long side of 1.5 mm, a short side of 0.3 mm, and a length of 12 mm.

[0020] When the filler 12 is in a powder or granular form, it is preferable to appropriately pulverize or classify the composition. The average particle size of the powder or granular filler 12 is preferably, for example, 0.1 to 3.0 mm, and more preferably 0.5 mm or less.

[0021] Next, a description will be given of specific examples of the raw materials used as the filler 12. The filler 12 is composed of any one or a combination of the following raw materials.

[0022] The filler 12 is made from tobacco plants or non-tobacco plants. Examples of tobacco plants include tobacco leaves, tobacco stems, expanded tobacco, homogenized tobacco, etc. Examples of non-tobacco plants include plants other than tobacco plants. Preferred parts of non-tobacco plants include leaves, pulp, seeds, roots (scale roots, tuberous roots, etc.), stems, tubers, skin (stem skin, bark, etc.), flowers (petals, stamens, pistils, etc.), trunks, branches, etc.

[0023] In this specification, "plants" refers to a group of animals, and includes not only living organisms that have roots and live in a fixed location, such as grass and trees, but also algae such as microalgae and seaweed, and fungi such as mushrooms.

[0024] The filler 12 may be prepared by, for example, mixing aerosol formers that generate aerosols, microcrystalline cellulose, flavor additives that add flavor, preservatives, binders, thickeners, etc. with dried and ground non-tobacco plants as appropriate, and then grinding or classifying the mixture into powder or granules, or forming the mixture into a paste. The filler 12 may also be formed into a sheet, which is then cut into strips or rods having a predetermined width and length. The thickness of the sheet is preferably in the range of 0.1 mm to 1.0 mm, and more preferably in the range of 0.1 mm to 0.5 mm. The filler 12 may be in any one of the following shapes: sheet, strip, granules, powder, paste, plate, and fiber, or may be a mixture of two or more of these shapes.

[0025] When the filler 12 is in the form of a sheet, the filler 12 is preferably in the form of a long rectangle with one side being approximately the same as the length of the aerosol-forming member 1 in the longitudinal direction and the other side being longer than the length of the aerosol-forming member 1. The thickness of the sheet is preferably in the range of 0.1 mm to 1.0 mm, as described above, and more preferably in the range of 0.1 mm to 0.5 mm. This form facilitates the crimping and deformation described below. Here, the length of the longitudinal side of the filler 12 is preferably a length that can be stored in the space inside the cylinder of the interior member 11 in a state where it is crimped or deformed together with the induction heating member 13, and more preferably a length that is approximately the same as the volume of the space. Furthermore, in order to facilitate deformation such as crimping and turning, it is preferable to form a line having a certain depth. Here, the depth of the line may be the same as the thickness of the sheet (i.e., a through hole is formed in the sheet) to form a slit-shaped line, or may be less than the thickness of the sheet (i.e., a non-through hole is formed in the sheet) to form a trench-shaped line.

[0026] In addition, when non-tobacco plants are used as raw materials, tea leaves can be used. Not only do tea leaves come from different plants, but even the same plant can be made into different tea leaves depending on the processing method. Specific examples include Japanese tea, black tea, and oolong tea.

[0027] As the aerosol former, for example, glycerin, propylene glycol, etc. are preferably used.

[0028] Next, microcrystalline cellulose is obtained, for example, by partially depolymerizing α-cellulose obtained from the pulp of a fibrous plant with an acid, and is obtained by removing the soluble portion from the cellulose and, if necessary, crystallizing the insoluble portion.

[0029] The microcrystalline cellulose may be in the form of a powder or may be dispersed in a solvent such as water to form a suspension. In this case, dispersion in the solvent can be performed using a high-speed stirrer or a high-pressure homogenizer.

[0030] Furthermore, if necessary, a flavor additive for adding flavor may be used as the filler 12. Examples of flavor additives include mint, cocoa, coffee, black tea extract, and tea extract catechin powder. Preservatives that are used in foods are preferred, and examples of the preservatives include sorbic acid, potassium sorbate, benzoic acid, and sodium benzoate.

[0031] Binding or thickening agents include gums such as guar gum, cellulosic binders such as hydroxypropyl cellulose, polysaccharides such as conjugate base salts of organic acids such as starch, and combinations thereof.

[0032] When forming the composition into a paste, flowability can be imparted by adding an appropriate amount of a thickener, water, etc. to the powdered or granular composition and kneading the mixture.

[0033] Furthermore, when providing the surface of the filler 12 with adhesiveness, any means capable of providing adhesiveness may be used, but the above-mentioned binder may be attached to at least a portion of the surface. By providing adhesiveness, when the strip- or rod-shaped filler 12 is combined with the powder-, granular, or pasty filler 12, the powder-, granular, or pasty filler 12 can be stably held on the surface of the strip- or rod-shaped filler 12.

[0034] In addition, it is preferable to impregnate or apply an antioxidant to the inside or surface of the filling 12, since this can prevent or suppress deterioration due to oxidation of the components (particularly plants) of the filling 12 and rust of the induction heating member 13. As the type of antioxidant, sodium sulfite, dibutylhydroxytoluene, butylhydroxyanisole, L-ascorbic acid (vitamin C), vitamin E, etc. are preferable. Furthermore, the above-mentioned catechin is also preferable because it has an antioxidant effect. Catechin is a component unique to green tea leaves, and green tea leaves contain epigallocatechin, epigallocatechin gallate, epicatechin, and epicatechin gallate. In other words, when tea leaves containing catechin (e.g., green tea) are used as a component of the filling 12, it is possible to obtain a further antioxidant effect by further adding catechin. For example, in the case of green tea, it is considered that about 80% of the components are derived from catechin, so by adding catechins in the filling 12 in a weight amount equivalent to 80% or more of the weight of the green tea leaves contained in the filling 12, it is possible to obtain a further antioxidant effect. In addition, of the catechins contained in green tea, epigallocatechin gallate accounts for about 60%, epigallocatechin gallate accounts for about 20%, epicatechin gallate accounts for about 13%, and epicatechin gallate accounts for about 7%. In particular, increasing the amount of epigallocatechin gallate, which has a high antioxidant function, is more effective in improving the antioxidant function. When a plant that does not contain catechin is used in the filling 12, it is effective to add catechins, especially epigallocatechin gallate, in the filling 12. In this case, by adding catechins (especially epigallocatechin gallate) in a weight amount equivalent to or more than that of the plant raw material contained in the filling 12, it is possible to obtain an antioxidant function equal to or greater than that obtained when green tea is used.

[0035] <Regarding induction heating member 13> In this embodiment, the induction heating member 13 is a processed flat plate-shaped material as shown in FIG. 1. The thickness of this flat plate is preferably 0.05 to 0.5 mm, more preferably 0.1 to 0.3 mm. The length is preferably approximately the same as the length of the aerosol-forming member 1 in the longitudinal direction, but may be different from the length of the aerosol-forming member 1 to such an extent that the formation of the aerosol is not hindered. Specifically, it is preferably about ±1 to 3 mm. Note that the induction heating member 13 does not necessarily have to be flat, and may be polygonal, rod-shaped, columnar, cylindrical, granular, spherical, porous, sheet-shaped, L-shaped, V-shaped, U-shaped, U-shaped, or other various shapes and combinations thereof.

[0036] The material of the induction heating member 13 is formed of a metal material including a ferromagnetic material. A ferromagnetic material is a material that, when an external magnetic field is applied, is strongly magnetized in the same direction as the external magnetic field, and has the property of being attracted to a magnet in particular. Examples of the ferromagnetic material include iron, ferrite iron, ferrite powder, ferrite particles, stainless steel having magnetism such as ferritic or martensitic stainless steel (e.g., SUS430, SUS410), nickel, nickel-iron alloy (e.g., 42 alloy, 36 invar), and cobalt. The relative magnetic permeability of a ferromagnetic material is significantly larger than 1, for example, about 5000 for iron, about 600 for nickel, about 250 for cobalt, and about 1000 to 1800 for ferritic stainless steel.

[0037] Among magnetic bodies, paramagnetic bodies are materials that become weakly magnetized in the same direction as an external magnetic field when it is applied, and lose magnetism when the external magnetic field is reduced to zero, examples of which include aluminum, platinum, manganese, etc. The relative permeability of paramagnetic bodies is slightly greater than 1, for example, about 1.000021 for aluminum, about 1.000265 for platinum, and about 1.000830 for manganese.

[0038] Diamagnetic materials, among magnetic materials, are materials that become magnetized in the opposite direction to the external magnetic field when an external magnetic field is applied, and lose their magnetism when the external magnetic field is reduced to zero, examples of which include copper, graphite, bismuth, etc. The relative permeability of diamagnetic materials is slightly smaller than 1, for example, about 0.999990 for copper, about 0.99980 for graphite, and about 0.999834 for bismuth.

[0039] When a ferromagnetic material is placed inside a magnetic field (alternating magnetic field) whose direction and magnitude change over time, not only does it generate Joule heat due to eddy currents that flow due to electromagnetic induction, but it also generates heat due to energy loss (hysteresis loss) that occurs when the direction of magnetization inside the ferromagnetic material changes.As a result, it can be easily induced heated compared to paramagnetic or diamagnetic materials, and can sufficiently heat the aerosol suction cartridge 10.

[0040] In addition, the Curie temperature, which is the temperature at which a ferromagnetic material loses its magnetic order and transitions to a paramagnetic material, is, for example, about 358° C. for nickel. Therefore, even when the aerosol suction cartridge is heated at a high temperature, for example, 200° C., the heating temperature does not reach the Curie temperature, and the properties of the ferromagnetic material can be maintained, allowing the aerosol suction cartridge 10 to be stably heated.

[0041] The material of the induction heating member 13 may be a ferromagnetic material such as iron, ferritic iron, ferrite powder, ferrite particles, ferritic stainless steel, ferromagnetic steel, stainless steel, nickel, cobalt, or a combination of these metal materials. For example, a combination of ferritic stainless steel and nickel is exemplified, and more preferably, an alloy of iron, chromium, and aluminum (iron-chromium-aluminum alloy).

[0042] Here, we will explain the relationship between temperature and magnetism of iron and chromium. The Curie temperature of iron is about 770°C, and the Neel temperature of chromium, which is the temperature at which it changes from an antiferromagnetic material to a paramagnetic material, is about 35°C.

[0043] The induction heating member 13 may be made of a metal material containing a ferromagnetic material as a main component, and may be, for example, a ferromagnetic alloy, which is an alloy containing preferably 60% or more, more preferably 80% or more, of a ferromagnetic material. For example, a nickel alloy or a nickel-iron alloy may be used. Even in this case, the aerosol suction cartridge 10 can be sufficiently heated by inductively heating the ferromagnetic material. Note that, instead of the ferromagnetic material, a metal material containing a paramagnetic material and a diamagnetic material may be used. In this case, induction heating itself is possible. However, it is preferable to use a metal material containing a ferromagnetic material from the viewpoint of shortening the heating time and reducing power consumption.

[0044] The induction heating member 13 may also be in a form in which a part or the whole of the sheet-like material is crimped. For example, when viewed in the longitudinal direction of the aerosol-forming member (i.e., viewed from the front of the cylinder), the induction heating member may be crimped into a spiral or volute shape. The induction heating member may also be crimped into a folded shape with overlapping parts. Furthermore, the induction heating member may be in an irregular shape that combines the spiral, folded, and other shapes.

[0045] Also, when viewed from the same viewpoint, the filler 12 may be in the form of a thin film (sheet-like) material that is partially or entirely shrunken, and the induction heating member 13 may be in contact with the filler 12 while following it to form a shrunken shape. Thus, like the induction heating member 13, the filler 12 may also be in a spiral or folded shape, or in an irregular shape that is a combination of a spiral or folded shape and other shapes. In such a configuration, the sheet-like induction heating member 13 follows the filler 12 while contacting it, so that the contact area between the two is increased, improving the heating efficiency and promoting the generation of aerosols.

[0046] Here, in order to prevent deterioration of the heat generating function due to rust, it is preferable that an anti-rust layer is formed on a part or the whole of the surface of the induction heating member 13, and it is more preferable that an anti-rust layer is formed on the whole surface.

[0047] Here, the type of the rust-preventive layer may be, for example, a brazing material film, a phosphate film, or an iron oxide film. These are preferable as materials for the rust-preventive layer because they do not generate substances harmful to the human body even when the induction heating member 13 is in a high temperature state. In addition, the type is not limited to one of these, and two or more types may be combined.

[0048] In the case of the wax film, the material may be a wax material such as beeswax, wax wax, sugarcane wax, spermaceti, or wool wax, and the film is formed on the surface of the induction heating member 13. The coating method may be, for example, a normal brush coating (brush coating method), a dip coating method (dip coating method) or a spraying method (spraying method) of the molten wax material. There is no particular limit to the thickness of the film, but if it is too thin, sufficient rust prevention effect cannot be obtained, while if it is too thick, it may affect the heating of the filler and inhibit the generation of aerosols, so it is preferable to set the thickness to an appropriate value. Specifically, 0.005 mm to 1 mm is preferable, and 0.01 to 0.5 mm is more preferable.

[0049] The phosphate film is a film chemically formed on the surface of a metal by chemical treatment (phosphate treatment) using a solution of phosphate such as iron phosphate, zinc phosphate, calcium phosphate, manganese phosphate, etc., and has the function of preventing corrosion of the metal. Here, the standard process of phosphate treatment preferably includes the steps of (1) alkaline degreasing, (2) water washing, (3) chemical conversion treatment with phosphate, (4) water washing, and (5) drying for the treated object. Chemical conversion treatment with phosphate is generally performed by immersing the metal to be treated in a phosphate solution, but it may also be performed by spraying the phosphate solution, for example. The thickness of the phosphate film changes depending on the length of the treatment time, but is preferably 1 μm to 20 μm.

[0050] By forming a phosphate film on a part or the whole of the surface of the induction heating member 13 by the phosphating treatment, it is possible to improve the rust prevention ability of the induction heating member 13.

[0051] It is also possible to prevent or suppress the occurrence of rust by artificially forming an iron oxide film on the metal surface. Here, triiron tetraoxide (Fe3O4), also known as black rust, is preferable as the iron oxide film because it forms a stable passive film. A standard process for forming a triiron tetraoxide film preferably includes the steps of (1) alkaline degreasing, (2) washing with water or hot water, (3) an alkaline aqueous solution at 140 to 150°C (caustic soda is preferable), (4) washing with water or hot water, and (5) drying for the treated object. The thickness of the oxide film is generally about 1 to 2 μm.

[0052] The support member 15 is a member disposed between the aerosol-forming member 1 and the mouthpiece 18, and suppresses the movement of the aerosol-forming member 1 toward the support member 15 side and the bending of the paper tube member 16, while allowing the airflow containing the aerosol generated in the aerosol-forming member 1 to flow toward the mouthpiece 18 side. The support member 15 is formed, for example, in a cylindrical shape, and is disposed between the aerosol-forming member 1 and the mouthpiece 18 so that its longitudinal axis is aligned with the central axis of the aerosol suction cartridge 10. The support member 15 is formed, for example, with a diameter of 4.0 mm to 7.5 mm and a length along the central axis of 50 mm or less. The support member 15 may have dimensions different from those described above depending on the appropriate function and configuration. In this embodiment, an insertion hole serving as an air flow path is formed in a support member main body formed of a resin material. Examples of materials for forming the support member 15 include plastics such as polypropylene, rubbers such as polylactic acid and silicone, and metals. Paper may also be used.

[0053] In embodiment 1, support member 15 has an overall hollow tubular shape with a through hole in the longitudinal direction of the cylinder (from the upstream side to the downstream side of the aerosol), is positioned downstream of the aerosol with respect to the aerosol-forming member, and also serves as a ventilation section to circulate the aerosol.

[0054] The mouthpiece 18 is formed in a cylindrical shape, and the length in the longitudinal direction is 10 to 50 mm. The outer diameter is set to be approximately the same as that of the cardboard tube member 16. The mouthpiece 18 also includes a circular tubular member 181 having a through hole formed in the center, and a sealing member 182 that seals a part or all of the through hole. The sealing member 182 is formed of a material having air permeability, and may include, for example, a cloth such as a nonwoven fabric, a canvas, or a woven fabric, a porous material such as a sponge, or a cellulose acetate filter. The sealing member 182 may also be a white filter that has a function of filtering out part of the fine particles in the water vapor and aerosol generated by the aerosol-forming member 1.

[0055] The tubular member 181 is formed of a flexible material such as paper, similar to the cardboard tube member 16, but when formed into a cylindrical shape, it is preferable that the material is hard enough to maintain the shape. Plastic or metal can also be used. The inner diameter of the through hole is preferably 1 to 3 mm smaller than the outer diameter of the tubular member 181 (i.e., the wall thickness of the tubular member 181 is preferably 0.5 to 1.5 mm).

[0056] Moreover, the sealing member 182 is in a sheet shape, and is preferably installed on one or both sides of the two ends of the through hole. Also, it may be installed inside the through hole, not limited to the ends. The thickness of the sealing member 182 is preferably 0.1 mm or more in consideration of durability, and more preferably 0.5 mm or more. In the first embodiment, it is installed on both ends, but it may be installed on only one side. In this case, the installation form may be such that the sealing member 182 is stretched so that tension is applied to it, or it may be installed in a loose state. Also, it may be attached so that a part or the whole of the side, including the side of the tubular member 181, is covered from the outside. Furthermore, as in the fourth modification example of FIG. 9, a cylindrical sponge or porous material may be fitted or bonded inside the through hole instead of a sheet shape. In this case, the sealing member 182-2 may be filled in the entire inside of the through hole, or may be installed only on both ends as in FIG. 9, or may be installed only in a part inside the other through hole. The thickness of the sealing member 182-2 is preferably 15 mm or less in consideration of breathability, and more preferably 5 mm or less. In conclusion, in consideration of the thickness of the sealing member 182, the thickness of the sealing member 182 (182-2) is preferably 0.1 to 15 mm, and more preferably 0.5 to 5 mm.

[0057] Variation 1 FIG. 3 is a schematic perspective view of a first modified example of the mouthpiece 18 according to the first embodiment, FIG. 4 is a schematic side cross-sectional view (a), a planar portion (b), and a side cross-sectional view (c) showing a state of use, and FIG. 5 is a schematic perspective view showing the state of use. In the first modified example, one or more capsules C in which a flavor additive is enclosed are stored inside the through-hole of the tubular member 181. Details of the capsules C will be described later. For the sake of simplicity of illustration and explanation, configurations other than the mouthpiece 18 are omitted except when necessary. Here, the diameter of the capsule C is preferably, for example, 4 mm or less. It is more preferable that the diameter is half or less of the diameter of the mouthpiece 18. Furthermore, a plurality of capsules C may be embedded, and capsules with different flavors may be used.

[0058] In the first modification, one or more slit-shaped cuts are formed in a part of the longitudinal direction of the tubular member 181 or in a part of the circumferential direction of the side surface. In addition, in the case of two or more cuts, it is preferable that they are formed in parallel along the circumferential direction. For example, here, four cuts 181-2a (two sets of cuts, one on each side in a plan view, overlapping in a direction perpendicular to the paper surface) having a length in a part of the circumferential direction (a length that does not go around the side surface) are formed in a form that sandwiches the capsule C in a plan view (FIG. 4(b)). Here, the cuts 181-2a are preferably 1 / 4 or more and less than 1 / 2 of the length of the circumference of the side surface of the tubular member 181, and more preferably 1 / 3 or less. If they are shorter than this, it becomes difficult to deform the tubular member 181, and if they are longer than this, the strength of the tubular member 181 decreases and it becomes easier to break. It is preferable that the cuts are formed so as to connect the outside of the tubular member 181 to the inside of the through-hole (i.e., penetrating the outer wall of the tubular member 181). In the figure, the capsule C is disposed near the center of the through hole, but the present invention is not limited to this and may be disposed to one side. In this case, it is preferable that the notch 181-2a is formed in a shape that sandwiches the capsule C in a plan view.

[0059] Next, a method of using the mouthpiece according to the first modification will be described. In a plan view (FIG. 4(b)), the capsule C is disposed at a position sandwiched between the notches 181-2a as described above. The imaginary line (the straight dotted line in the figure) that connects the ends of the notches 181-2a at the shortest distance is used as a folding line, and the portion of the tubular member 181 that is surrounded by the notches 181-2a and the folding line is pressed toward the center of the through hole. Here, since the notches 181-2a are formed, the structural strength of the tubular member 181 is partially weakened, making it easier to press down. At this time, it is preferable to use the teeth or fingers of the user. In FIG. 4(c) and FIG. 5, the capsule C is sandwiched and fixed by a part of the pressed tubular member 181, but this state may be the case before use. Furthermore, if the pressing is continued, the capsule C is broken and the flavor additive flows out, generating a flavor. Here, if the sealing member 182 is made of a material having water absorption properties such as a nonwoven fabric or a porous material, it is preferable because it absorbs the flowed out flavor additive.

[0060] Variation 2 FIG. 6 is a schematic side cross-sectional view (a), a plan view (b), and a side cross-sectional view (c) showing a state of use of the mouthpiece 18 according to the first embodiment. The same configuration as that of the first embodiment will not be described as appropriate. In the second embodiment, four V-shaped notches 181-2b (two sets of one pair of left and right notches overlapping in a plan view) are formed in the tubular member 181 in a form that sandwiches the capsule C in a plan view (FIG. 6(b)). The notches 181-2b are preferably formed along the tubular member 181 so that the open sides of the V shape face each other, and further preferably formed so as to connect the inside of the through hole from the outside of the tubular member 181. Here, in the figure, the capsule C is disposed near the center of the through hole, but this is not limited thereto and may be disposed to one side. In this case, the notches 181-2b are preferably formed in a form that sandwiches the capsule C in a plan view.

[0061] Next, a method of using the mouthpiece according to the second modification will be described. In a plan view (FIG. 6(b)), the capsule C is disposed at a position sandwiched between the notches 181-2b as described above. The imaginary line (the straight dotted line in the figure) that connects the ends of the notches 181-2b at the shortest distance is used as a folding line, and the portion of the tubular member 181 surrounded by the notches 181-2b and the folding line is folded toward the center of the through hole. FIG. 6(c) shows a state in which the capsule C is sandwiched and fixed by the wedge-shaped part of the pressed tubular member 181, but this state may be the case before use. Furthermore, when the user continues to press the part sandwiched between the imaginary lines with the teeth or fingers of the user, the capsule C is broken and the flavor additive flows out and volatilizes to generate a flavor. Here again, since the notches 181-2b are formed, the structural strength of the tubular member 181 is partially weakened, making it easier to press.

[0062] The incision 181-2b is preferably formed as an equilateral triangle or an isosceles triangle with the dotted line, which is the folding line in a plan view, as the base. Here, the base is preferably 1 / 4 or more, less than 1 / 2, and more preferably 1 / 3 or less of the length of the outer circumference of the side surface of the tubular member 181. If it is shorter than this, the tubular member 181 becomes difficult to deform, and if it is longer than this, the strength of the tubular member 181 decreases and it becomes easy to break. In addition, it is preferable that the perpendicular bisector from the apex of the triangle to the base is 1 / 2 or more of the difference between the inner diameter of the tubular member 181 and the outer diameter of the capsule C, and the lengths of the two hypotenuses are each equal to or less than the length of the base. In addition, it is preferable that the four triangles have the same shape in a plan view, and that the straight line passing through the apexes of the opposing triangles in the side surface is parallel to the longitudinal direction of the tubular member.

[0063] Variation 3 Other modified examples of the shape of the incision will be described with reference to Figs. 7 and 8. The incision 181-2c in Fig. 7(1) is formed in eight L-shapes at positions corresponding to the four corners of a virtual square in plan view (two sets of four in the figure overlap in a direction perpendicular to the paper surface in plan view). In this case, it is preferable that the length of one side of the virtual square is approximately equal to or shorter than the diameter of the capsule C. In use, as in the second modified example, the part of the tubular member 181 surrounded by the incision 181-2c and the folding line is folded toward the center of the through hole. Here, the length of the incision 181-2c from end to end of one L-shape (i.e., the total length) is preferably 1 / 4 or more and less than 1 / 2 of the circumference of the tubular member 181, and more preferably 1 / 3 or less.

[0064] 7(2) is U-shaped in plan view, and four of the notches 181-2d are formed (two sets of one on each side of the figure, overlapping in a direction perpendicular to the paper surface in plan view). The notches 181-2d are preferably formed along the tubular member 181 so that the open sides of the U-shape face each other. The method of use is the same as in the second modification.

[0065] The incision 181-2d is preferably formed as a quadrilateral that is a square or a rectangle (i.e., a rectangle) with the dotted line that becomes the folding line as the base in a plan view. Here, the folding line is preferably 1 / 4 or more, less than 1 / 2, and more preferably 1 / 3 or less of the length of the outer circumference of the side surface of the tubular member 181. If it is shorter than this, it becomes difficult to deform the tubular member 181, and if it is longer than this, the strength of the tubular member 181 decreases and it becomes easy to break. In addition, it is preferable that the length of the line perpendicular to the base is 1 / 2 or more of the difference between the inner diameter of the tubular member 181 and the outer diameter of the capsule C. In addition, it is preferable that the four quadrilaterals facing each other in a plan view have the same shape, and are arranged so that two sides of each quadrilateral are parallel to the longitudinal direction of the tubular member.

[0066] 7(3), the notches 181-2e are U-shaped in plan view, and four of them (two sets of one on each side of the figure, overlapping in a direction perpendicular to the paper surface in plan view) are formed. The notches 181-2e are preferably formed along the tubular member 181 so that the open sides of the U shape face each other. The method of use is the same as in the second modification.

[0067] The incision 181-2e preferably forms an arch shape with a dotted line, which is a folding line in a plan view, as its base. Here, the base is preferably 1 / 4 or more, less than 1 / 2, and more preferably 1 / 3 or less of the length of the outer circumference of the side surface of the tubular member 181. If it is shorter than this, the tubular member 181 becomes difficult to deform, and if it is longer than this, the strength of the tubular member 181 decreases and it becomes more likely to break. In addition, when an equilateral triangle or an isosceles triangle is imagined, which shares a base and has an apex inscribed in the incision 181-2e, it is preferable that the perpendicular bisector from the apex of the imagined triangle to the base is 1 / 2 or more of the difference between the inner diameter of the tubular member 181 and the outer diameter of the capsule C, and the length of the two hypotenuses is preferably less than the length of the base. In addition, it is preferable that the four arch shapes have the same shape, and the bases are arranged perpendicular to the longitudinal direction of the tubular member.

[0068] 8(4) is T-shaped in plan view, and four of the notches 181-2f are formed (two sets of one on each side of the figure, overlapping in a direction perpendicular to the paper surface in plan view). The notches 181-2f are preferably formed along the tubular member 181 so that the horizontal lines of the T face each other. The method of use is the same as in the second modification.

[0069] The incision 181-2f is preferably formed as an equilateral triangle or an isosceles triangle with the dotted line, which is the folding line in a plan view, as the oblique line. Here, the length of the base and part of the incision 181-2f is 1 / 4 or more, preferably less than 1 / 2, and more preferably 1 / 3 or less of the length of the outer circumference of the side surface of the tubular member 181. If it is shorter than this, the tubular member 181 becomes difficult to deform, and if it is longer than this, the strength of the tubular member 181 decreases and it becomes easy to break. In addition, the part of the incision 181-2f that is the perpendicular bisector from the apex to the base of the triangle is preferably 1 / 2 or more of the difference between the inner diameter of the tubular member 181 and the outer diameter of the capsule C, and the length of the two oblique sides is preferably less than the length of the base. In addition, it is preferable that the four triangles have the same shape in a plan view, and the perpendicular bisectors of the triangles facing each other in the side surface are parallel to the longitudinal direction of the tubular member.

[0070] 8(5) is H-shaped in plan view, and two cuts (two cuts overlapping each other in a direction perpendicular to the paper in plan view) are formed. It is preferable that the cuts 181-2f are formed such that the horizontal lines of the T face each other along the tubular member 181. The method of use is the same as in the second modification.

[0071] The incision 181-2g is preferably formed as two adjacent quadrilaterals, which are squares or rectangles (i.e., rectangles) with the dotted line that is the folding line as the base in a plan view. Here, the folding line is preferably 1 / 4 or more, less than 1 / 2, and more preferably 1 / 3 or less of the length of the outer circumference of the side surface of the tubular member 181. If it is shorter than this, the tubular member 181 becomes difficult to deform, and if it is longer than this, the strength of the tubular member 181 decreases and it becomes easy to break. In addition, it is preferable that the length of the line perpendicular to the base is 1 / 2 or more of the difference between the inner diameter of the tubular member 181 and the outer diameter of the capsule C. In addition, it is preferable that the four quadrilaterals formed in a plan view (two sets of two on the left and right of the figure overlap in a direction perpendicular to the paper surface in a plan view) have the same shape, and are arranged so that two sides of each quadrilateral are parallel to the longitudinal direction of the tubular member.

[0072] 10, a capsule C in which a flavor additive is enclosed is wrapped in a sheet-like wrapping paper 183 in a rod shape inside the through-hole of the tubular member 181 to form a capsule wrapping body, thereby making it possible to prevent the capsule C from moving inside the through-hole. The wrapping paper 183 can be made of any paper, but in this case, a material having air permeability and water absorption such as a nonwoven fabric or a porous material, like the sealing member 182, is preferable because it can ensure air permeability and absorb the flavor additive that has flowed out.

[0073] In addition, the capsule packaging may simply encase the capsule C in a rod-like shape with wrapping paper 183 as shown in the same figure (a), but the wrapping paper 183 may also be twisted around the capsule C with its longitudinal axis as the axis, and formed like a candy packaging shape as shown in the same figure (b), thereby firmly encasing the capsule C.

[0074] Next, the sealing member 17 is preferably formed in a cylindrical shape, and has a diameter of 4.0 mm to 7.5 mm and a longitudinal length of 3.0 to 7.0 mm, for example. The sealing member 17 may be formed in a cylindrical shape by rolling or crimping a sheet-like member made of paper, as with the mouthpiece 18, or may be formed by attaching a breathable paper to the end of the interior member 11. The sealing member 17 has a function of passing air from the outside of the cartridge toward the aerosol-forming member 1. In addition, the sealing member 17 can absorb the residual liquid that remains in the aerosol-forming member 1 and liquefies among the water vapor and aerosol generated by the aerosol-forming member 1. In addition, the sealing member 17 has a function of suppressing the movement of the aerosol-forming member 1 toward the sealing member 17. By making the sealing member 17 a different color (for example, black) from the mouthpiece 18, it is possible to easily distinguish the upstream side and the downstream side of the aerosol suction cartridge 10. The material may be plastics such as polypropylene, polylactic acid, metal, rubber, silicone, or other rubbers, and through holes that serve as a passage for the aerosol may be provided to improve breathability.

[0075] In embodiment 1, sealing member 17 has an overall hollow tubular shape with a through hole in the longitudinal direction of the cylinder (from the upstream side to the downstream side of the aerosol), is positioned on the upstream side of the aerosol with respect to the aerosol-forming member, and also serves as a ventilation section to allow the aerosol to circulate.

[0076] The filling 12 may be directly housed on the inner wall of the cardboard tube member 16 without using the interior member 11. This allows the manufacturing process and structure to be simplified, and allows further reduction in manufacturing costs. In this case, the support member 15 and the mouthpiece 18 may be placed in the exterior member 14 before or after the filling 12 is housed therein.

[0077] According to the invention of embodiment 1, the inside of mouthpiece 18 is a hollow through hole, and therefore the breathability of mouthpiece 18 is improved, thereby reducing the aerosol suction resistance and increasing the amount of aerosol generated. In addition, the heat of the aerosol is effectively dissipated, enabling efficient cooling, thereby improving the usability and safety for the user.

[0078] Embodiment 2 11 and 12 are schematic perspective views of an aerosol suction cartridge 20 using an exterior member 24 according to embodiment 2 of the invention. Here, illustrations and descriptions of the same configuration as in embodiment 1 will be omitted as appropriate.

[0079] The aerosol suction cartridge 20 of the second embodiment includes a cylindrical paper tube member 16 having an aerosol generating source therein, a cylindrical mouthpiece 28 made of a material having air permeability, and a sheet-like exterior member 24 for connecting the paper tube member 16 and the mouthpiece 28 to form a rod shape. The mouthpiece 28 is arranged linearly with the paper tube member 16, and the exterior member 24 wraps the paper tube member 16 and the mouthpiece 28 over a part or the whole of them. Here, the mouthpiece 28 has a cylindrical shape made of a material having air permeability, and it is preferable to use the same material as the sealing member 182 of the first embodiment. A capsule C may be embedded inside the mouthpiece 28. Furthermore, the exterior member 24 does not necessarily have to be one piece, and two or more sheets may be laminated.

[0080] In Fig. 11(a), a part of the side surface of mouthpiece 28 on the suction side (right side of the figure) is exposed. Here, the side surface refers to the side surface of the cylindrical shape defined by mouthpiece 28. The exposed length is preferably in the range of 20 to 80% of the length of the cylinder defined by mouthpiece 28. If it is less than this, the effects of improving breathability and cooling the aerosol cannot be sufficiently obtained, and if it is greater than this, the connection part between mouthpiece 28 and cardboard tube member 16 is likely to become fragile.

[0081] In addition, in FIG. 1B, the portion where the mouthpiece 28 and the cardboard tube member 16 are connected is arranged such that the covered portion covered by the exterior member 24b and the exposed portion where a part of the mouthpiece 28 and a part of the cardboard tube member 16 are exposed are alternately arranged (for example, in a comb shape) in the circumferential direction of the cylinder defined by the mouthpiece 28. Here, the exposed portion and the covered portion are preferably formed at equal intervals, and are particularly preferably formed at a pitch of 0.5 to 5 mm in the circumferential direction of the mouthpiece 28, and more preferably at a pitch of 1 to 3 mm. Here, the "pitch" refers to the distance from the center of the exposed portion to the center of the adjacent exposed portion in the circumferential direction. In addition, the longitudinal dimension of the mouthpiece 28 of the exposed portion and the covered portion is preferably 1 to 10 mm, and more preferably 3 to 5 mm.

[0082] Also, in FIG. 1(c), when the exterior member 24c is wound around the mouthpiece 28 and the cardboard tube member 16, both ends of the winding direction (the circumferential direction of the cylinder defined by the mouthpiece 28) do not coincide or overlap with a part of the exterior member 24c (i.e., a part of the mouthpiece 28 is exposed between both ends of the exterior member 24c. The width of the exposed part in the circumferential direction of the mouthpiece 28 is preferably 0.5 to 5 mm, and more preferably 1 to 3 mm. Furthermore, the exposed part is not limited to one place, and there may be two or more places (in this case, two or more exterior members 24c are used).

[0083] 12(d) is made of a breathable material, which is preferably the same material as the sealing member 182 of the first embodiment.

[0084] Also, in FIG. 1(e), the covering portion covered by the exterior member 24e and the exposed portion where a part of the mouthpiece 28 or a part of the paper tube member 16 is exposed are alternately arranged in the longitudinal direction of the mouthpiece 28 in a side view. For example, the exterior member 24e may be formed into a ribbon-like continuous body and spirally wound around the side surfaces of the mouthpiece 28 and the exterior member 16. In this case, the covering portion and the exposed portion form a continuous spiral track on the side surfaces of the mouthpiece 28 and the paper tube member 16, respectively. On the other hand, the exterior member 24e may be formed into a ribbon-like continuous body having a length equal to or slightly longer than the outer periphery of the mouthpiece 28 (both ends of the exterior member 24e overlap, but the overlapping portion is preferably one-fourth or less of the outer periphery). In this case, the covering portion and the exposed portion form a plurality of separate circular tracks on the side surfaces of the mouthpiece 28 and the paper tube member 16, respectively. Here, the exposed portion is preferably formed with a width of 0.5 to 5 mm in the circumferential direction of the mouthpiece 28, and more preferably with a width of 1 to 3 mm.

[0085] In FIG. 1(f), the exterior member 24f is trapezoidal in that the length of the upper base is shorter than the length of the outer circumference of the cardboard tube member 16 and the length of the lower base is longer than the length of the outer circumference of the mouthpiece 28. When the mouthpiece 28 and the cardboard tube member 16 are wound with the upper base side facing the cardboard tube member 16 side and the lower base side facing the suction side (the right side of the figure), the lower base side partially overlaps and the upper base side does not overlap, and a part of the mouthpiece 28 is exposed in a triangular shape. Here, the length of the base side (circumferential direction of the mouthpiece 28) of the exposed part of the triangular shape is preferably 10 to 50% of the outer circumference of the mouthpiece 28, more preferably 20 to 30%. Moreover, the height of the triangle is preferably 10 to 50% of the longitudinal dimension of the mouthpiece 28, more preferably 20 to 30%.

[0086] In FIG. 1(g), one or more openings are formed in the exterior member 24g, and the mouthpiece 28 is exposed through the openings. In the drawing, the openings are depicted as rectangles having a certain area, but this is not limited thereto, and the openings may be formed as slits penetrating the exterior member 24g, or may be circular or other polygonal. The size of each opening is 0.1 mm when it is circular or polygonal. 2More than 0.5mm is preferable. 2 Furthermore, in the case of a slit shape, the length is preferably 0.1 mm or more, and more preferably 0.5 mm or more.

[0087] According to the invention of embodiment 2, by having an exposed portion where part of mouthpiece 28 is exposed and by having breathable exterior member 24d, outside air is taken into the interior of mouthpiece 28, and by improving the breathability of mouthpiece 28, the suction resistance of the aerosol is reduced and the amount of aerosol generated is increased. In addition, by effectively dissipating the heat of the aerosol, efficient cooling is possible, thereby improving the usability and safety for the user.

[0088] Third embodiment 13 is a schematic side cross-sectional view of an aerosol suction cartridge 30 using a mouthpiece 38 according to embodiment 3 of the invention. Here, illustrations and descriptions of configurations similar to those in embodiments 1 and 2 are omitted as appropriate.

[0089] The aerosol suction cartridge 30 of the third embodiment includes a cylindrical paper tube member 16 having an aerosol generating source, a support member 15, and a seal member 17 therein, a cylindrical mouthpiece 38 made of a material having air permeability, and a sheet-like exterior member 14 for connecting the paper tube member 16 and the mouthpiece 38 to form a rod shape. The mouthpiece 38 is linearly arranged with the paper tube member 16, and the exterior member 14 wraps the paper tube member 16 and the mouthpiece 38 over a part or the whole of them. Here, the mouthpiece 38 has a cylindrical shape made of a material having air permeability, and it is preferable to use the same material as the sealing member 182 of the first embodiment. A capsule C may be embedded inside the mouthpiece 38.

[0090] Mouthpiece 38 of the third embodiment has a linear, planar or dot-like uneven shape formed on the cylindrical side surface. For example, in Fig. 13, the uneven shape is formed as a spiral groove. The uneven shape can be formed by machining the side surface of mouthpiece 38 (for example, passing mouthpiece 38 between a roller with needles or a roller with blades to create a shape) or by laser processing.

[0091] The uneven shape may be a dot-like depression as shown in FIG. 14(a), or a dot-like protrusion as shown in FIG. 14(b). Furthermore, it may be a spiral protrusion as shown in FIG. 14(c). In the case of grooves or linear protrusions, the direction may be along the longitudinal direction of the mouthpiece 38, may be formed in a diagonal direction to the longitudinal direction, may be vertical (i.e., circumferential direction), or may be a combination of these. Here, the height of the protrusion (radial direction of the cylinder defining the mouthpiece 38) is preferably 0.1 to 2 mm, more preferably 0.3 to 1 mm. In the case of depressions, the depth is preferably 0.1 to 2 mm, more preferably 0.3 to 1 mm. In the case of grooves or linear protrusions, the width is preferably 0.1 to 2 mm, more preferably 0.3 to 1 mm. In the case of dot-like depressions or protrusions, it is preferable that the length (diameter) of one side is a quadrilateral (circle) of 0.1 to 2 mm, preferably 0.3 to 1 mm. Moreover, the area where the uneven shape is formed is preferably 10 to 80%, and more preferably 30 to 50%, of the area of ​​the side surface of mouthpiece 38. Furthermore, the uneven shape may be any other polygonal shape.

[0092] Furthermore, in the case of dot-like depressions or protrusions, they may be formed in a predetermined pattern or may be random.

[0093] Furthermore, the number of uneven shapes may be any number greater than or equal to one, but if they are widely distributed over the side surface of mouthpiece 38, it is more effective for thermal diffusion of the aerosol.

[0094] According to the invention of embodiment 3, the uneven shape formed on the side makes it easier for air to enter the inside of mouthpiece 38 from the outer periphery of mouthpiece 38, thereby promoting thermal diffusion of the generated aerosol while reducing the suction resistance of the aerosol and improving breathability.

[0095] As described above, the first to third embodiments of the invention have been described. According to these, the breathability of the aerosol is improved, thereby reducing the resistance to aerosol intake and increasing the amount of aerosol generated. At the same time, the heat of the aerosol is effectively dissipated, enabling efficient cooling, thereby improving the usability and safety for the user.

[0096] The scope of the present invention is not limited to the above-mentioned embodiment, but extends to other embodiments that can be regarded as equivalent. It is also possible to use a combination of the embodiments and the modified examples. In addition, when referring to the aerosol suction cartridge 10, etc., it is used to collectively refer to the aerosol suction cartridges 10 to 30. The same applies to other configurations.

[0097] The packing 12 of the present invention may be used as an aerosol suction cartridge for resistance heating without housing the induction heating member 13.

[0098] Furthermore, the number of induction heating members 13 etc. included in the aerosol-forming member 1 etc. is not limited to one, and a plurality of induction heating members 13 etc. may be included, which makes it possible to improve the aerosol generation efficiency.

[0099] The filler 12 may also be in various forms, such as a sheet, a strip, a paste, granules or powder, a porous form, a rod, a plate, fibers, small pieces, or a mixture of these.

[0100] Besides, the support member 15 and the seal member 17 do not necessarily need to be installed if the aerosol-forming member 1 does not move. For example, the mouthpiece 18 and the like may be adjacent to the aerosol-forming member 1, or the place where the support member 15 was located may be made into a space (i.e., the entire space between the aerosol-forming member 1 and the mouthpiece 18 and the like may be hollow). This reduces the number of parts, which is effective for cost reduction. In particular, when a space is provided, it is effective for improving breathability. Furthermore, by eliminating the seal member 17 and the support member 15, the aerosol-forming member 1 can be made longer, which makes it possible to improve the user's usability.

[0101] Furthermore, the cardboard tube member 16 and the exterior member 14, etc. are not necessarily separate structures, and one of them may serve as the other. For example, the cardboard tube member 16 may be extended to house the mouthpiece 18 inside to form the aerosol suction cartridge 10, etc., or the exterior member 14, etc. may integrally contain the seal member 17, the aerosol forming member 1, the support member 15, and the mouthpiece 18, etc. This makes it possible to simplify the manufacturing process and reduce manufacturing costs.

[0102] Furthermore, in the mouthpiece 28 etc. of the second and third embodiments, activated carbon may be attached to the inside of the cylindrical shape. Furthermore, activated carbon may be sandwiched between the mouthpiece 28 etc. and the paper tube member 16. Furthermore, activated carbon may be sandwiched between the exterior member 14 etc. and the mouthpiece 28 etc. Furthermore, activated carbon may be attached to the sealing member 182 of the first embodiment. The activated carbon adsorbs unpleasant tastes contained in the aerosol, which can further improve the user's experience.

[0103] In addition to the tea leaves mentioned in the embodiment, all commonly used tea leaves can be used as the raw material for the filling 12. In addition, used tea leaves may be used for these tea leaves. If used tea leaves are used, expensive tea leaves can be reused and put to good use.

[0104] In addition, extracts of the above-mentioned non-tobacco plants, so-called extracts and processed products, can also be used. The extracts may be in the form of liquid, starch syrup, powder, granules, solution, etc.

[0105] In addition to those mentioned in the embodiment, the aerosol formers used as raw materials for the filler 12 may include sorbitol, triethylene glycol, lactic acid, diacetin (glycerin diacetate), triacetin (glycerin triacetate), triethylene glycol diacetate, triethyl citrate, isopropyl myristate, methyl stearate, dimethyl dodecanedione, and dimethyl tetradecanedione.

[0106] In addition, menthol and a water-insoluble crosslinked polymer (preferably polyvinylpolypyrrolidone) may be contained as flavor additives. By combining menthol with a water-insoluble crosslinked polymer, sublimation of menthol can be effectively suppressed, and the flavor of menthol can be maintained for a long period of time. Here, menthol is not limited to that obtained from natural products, and may be a synthetic product. In addition, peppermint, mint, peppermint oil, and other menthol-containing substances may be used.

[0107] In addition, examples of binders or thickeners used as raw materials for the filling 12 include, in addition to those mentioned in the embodiments, gums such as xanthan gum, gum arabic, and locust bean gum, cellulose binders such as carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, and ethylcellulose, polysaccharides such as organic acids such as alginic acid, sodium alginate, sodium carboxymethylcellulose, caranagin, agar, and conjugate base salts of organic acids such as pectin, and combinations thereof.

[0108] Next, the capsule C in which the flavor additive is enclosed, as described in the embodiment, will be described in detail. When the flavor additive is enclosed in the capsule C, the user can break the capsule C by pressing the capsule C with a finger, and the aromatic component of the flavor additive can be volatilized at a desired timing.

[0109] Furthermore, when the flavor additive is, for example, encapsulated in a microcapsule, the encapsulated microcapsule may be provided in the aerosol suction cartridge 10 or the like. Of course, the microcapsule may be provided in the support member 15 or the like.

[0110] In addition, a so-called seamless capsule can be suitably used as the capsule C. The capsule C used for the seamless capsule has a shell layer, and one or more kinds of smoking taste components that are liquid, powder or gel at room temperature are enclosed in the shell layer as a flavor additive.

[0111] Capsule C is configured to release the taste components inside by breaking capsule C. Specifically, by breaking the shell layer of capsule C by crushing the mouthpiece in which capsule C is disposed with fingers, biting it, or the tip of heat absorbing part 981 described above, the taste components sealed in the shell layer are released to the outside, and flavor and aroma are added to the aerosol generated from filling 12, thereby giving the user a change in the taste.

[0112] Capsule C prevents the release of the encapsulated taste components until the shell layer is broken, and releases the taste components when the shell layer is broken. Suitable materials for the shell layer include, for example, gelatin (animal-derived or fish-derived), cellulose, hydroxypropylmethylcellulose (HPMC), pullulan, starch, modified starch, gellan gum, agar, and carrageenan. Capsules made of these materials are widely used for medical and food purposes, and capsules suitable for the purpose of the present invention can be easily obtained from the market. In addition, as the material for the shell layer, a thermoplastic resin material such as a polyurethane resin can be appropriately used depending on the purpose.

[0113] Capsule C may further be a so-called microcapsule or porous body that is a powder containing flavor components and releases the flavor components when subjected to heat or friction, or may be in the form of a tablet consisting of a cylindrical body and a cap.

[0114] The shape of the capsule C is not particularly limited, and may be, for example, a spherical, elliptical, rectangular, cylindrical or other shape as long as it is capable of encapsulating a flavor component. The capsule C may be a granular capsule having a diameter of about 0.5 mm to 5 mm, depending on the position where it is placed and the shape of the member to be supported. The diameter of the capsule C placed inside the aerosol suction cartridge 10, etc., is 5 mm or less, preferably 4 mm or less, or even half the diameter, which is less than the diameter of the aerosol suction cartridge 10, etc., and does not affect the ventilation of the aerosol, and in some cases, it is preferable to use a capsule having a diameter of about 1 mm to 2 mm.

[0115] The number of capsules C used in an aerosol suction cartridge 10, etc. is not particularly limited, and it is sufficient that at least one is arranged so as to achieve the object of the present invention, and one or more capsules can be maintained in good condition.

[0116] The flavor components used in the capsule C are preferably cooling agents, components extracted from coffee, flavorings, etc.

[0117] Examples of the cooling agent that can be used include menthol, menthol derivatives, menthone, menthone derivatives, menthane carboxylic acid amide, 2,3-dimethyl-2-(2-propyl)-butyric acid derivatives, menthane, menthane derivatives, L-carvone, xylitol, eucalyptus essential oil, peppermint oil, spearmint essential oil, and spilanthol.

[0118] The components extracted from coffee preferably include coffee aroma components such as caffeine, pyridine, methylpyrazine, acetic acid, furfuryl alcohol, cyclotene, 1H-pyrrolecarbaldehyde, hydroxypyridine, hydroxyacetone, furfural, methylfurfural, maltol, etc. Furthermore, coffee bean powder, coffee extract, coffee flavoring, green coffee extract, etc. can also be used.

[0119] As the flavoring, any of natural flavorings, synthetic flavorings, and blended flavorings can be used. In addition, flavors (food additives) and fragrances (cosmetic flavorings) can be used. The types of scents of the flavorings include citrus, floral, fruit, milk, chypre, oriental, (luxury) food and drink, ready-made (luxury) smoking accessories, vanilla, mint, sweetener, spice, nut, and alcohol. Among them, flavors that give a refreshing feeling such as citrus, fruit, and mint; flavors that give a relaxing feeling such as (luxury) food and drink such as chocolate, milk, and coffee; and flavors that give a sweet feeling such as vanilla, floral, and sweetener are preferred.

[0120] The flavor component used in the capsule C can further contain a substance containing an aerosol generating substance that generates an aerosol. Examples of the aerosol generating substance that can be suitably used in the present invention include liquid substances (extracts) extracted from tobacco plants or non-tobacco plants or flavor additives that add flavor, which are listed as the raw materials used as the filling 12 described above, or powdered substances obtained by pulverizing the plants. As described above, it is preferable to use a liquid or starch syrup-like substance or powder made from tea leaves as the raw material in the capsule C. In the present invention, any of these raw materials can be used, and they can be used alone or in a blend.

[0121] Furthermore, cannabinoid components that are tasteless and odorless but are expected to have a relaxing effect may be used as the flavor component. An example of the use of such cannabinoids is the inclusion of cannabinoids contained in hemp stems or seeds, caffeine, and a solvent. As the cannabinoid, it is preferable to contain at least one cannabinoid selected from the group consisting of cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), cannabielsoin (CBE), cannabigerol (CBG), and cannabidivarin (CBDV), and it is particularly preferable to contain cannabidiol (CBD).

[0122] Other ingredients that can be enclosed in the capsule as flavor additives include, for example, flavor ingredients such as herbs, spices, Chinese herbal medicines, edible fruits, and seaweed. Liquid substances (extracts) extracted from edible fruits, or powdered substances obtained by grinding and drying edible fruits, can be used. Examples of such substances include Chinese quince, plants of the genus Citrus in the family Rutaceae (bitter orange, satsuma mandarin, summer daidai, ponkan, hassaku, iyokan, ichan lemon, trifoliate orange, orange, mandarin orange, kabosu, Kishu mandarin, quinoa, grapefruit, koji, sanbokan, citron, jabara, sudachi, tachibana, tangor, summer citrus, and hana). In order to provide the user with a pleasant fragrance, the ingredient may include at least one selected from the group consisting of yuzu, hyuganatsu, shikuwasa (shekwasha), pomelo (citron), yuzu, lime, lemon, kaffir lime, etc., plants of the genus Prunus (Prunus persica) of the Rosaceae family, apple, pineapple, mango, kumquat, melon, pomegranate, plum, apricot, blueberry, plants of the genus Fragaria (Rosaceae family), raspberry, banana, and grape, but is not limited to these.

[0123] The capsule C may also be disposed between the mouthpiece 18 or the like and the aerosol suction cartridge 10.

[0124] Furthermore, the flavor additive may be provided by impregnating the walls of the mouthpiece 18, etc.

[0125] When using raw materials that do not contain nicotine, such as non-tobacco plants, substances that provide a similar feeling of use to nicotine, i.e., a so-called kick, may be added. For example, preferred are plants of the genus Piperaceae (pepper, long pepper, pseudo-piper, amplexicaule, etc.), black pepper, white pepper, piperine, lobeline, cavicin, capsaicin, dihydrocapsaicin, glucosinolate, allyl isothiocyanate, etc. [Explanation of symbols]

[0126] 10, 20, 30 Aerosol Suction Cartridges 1 Aerosol forming material 11 Interior materials 12 Filling 13 Induction heating components 14, 24 Exterior parts 15 Support member 16 Paper tube components 17 Sealing material 18, 28 Mouthpiece 181 Tubular members 182 Sealing member C Capsule

Claims

1. A mouthpiece for an aerosol inhalation cartridge, comprising: A cylindrical tubular member having a through hole formed at the center; a sealing member that seals a part or the whole of the through hole of the tubular member, The sealing member is made of a breathable material. A mouthpiece for an aerosol suction cartridge, comprising:

2. The sealing member is sheet-shaped and is installed on one or both ends of the through hole.

2. The mouthpiece for an aerosol suction cartridge according to claim 1 .

3. One or more slit-shaped cuts are formed in a longitudinal portion of the tubular member or in a circumferential portion of the side surface, One or more capsules containing a flavor additive are stored inside the through-hole.

2. The mouthpiece for an aerosol suction cartridge according to claim 1 .

4. The mouthpiece for an aerosol suction cartridge according to claim 3, characterized in that the slit-shaped cut is formed in an I-shape, T-shape, L-shape, V-shape, U-shape, H-shape or C-shape.

5. One or more capsules containing a flavor additive are stored inside the through-hole, The capsules are wrapped in a wrapping paper in a stick shape to form a capsule package.

2. The mouthpiece for an aerosol suction cartridge according to claim 1 .

6. The capsule packaging body is fixed to the capsule by twisting the wrapping paper around the capsule with the longitudinal direction as an axis.

6. The mouthpiece for an aerosol suction cartridge according to claim 5.

7. A cylindrical paper tube member having an aerosol generating source therein; A cylindrical mouthpiece made of a breathable material; and a sheet-like exterior member for connecting the paper tube member and the mouthpiece to form a rod shape, The mouthpiece is arranged linearly with the paper tube member, The exterior member wraps the paper tube member and the mouthpiece partially or entirely. An aerosol suction cartridge comprising:

8. The mouthpiece has a part of the side surface on the inhalation side exposed.

8. The aerosol suction cartridge according to claim 7.

9. At the connection portion between the mouthpiece and the paper tube member, a covered portion covered by the exterior member and an exposed portion where the mouthpiece and the paper tube member are exposed are alternately arranged in the circumferential direction of the mouthpiece.

8. The aerosol suction cartridge according to claim 7.

10. When the exterior member is wound around the mouthpiece and the paper tube member, both ends of the exterior member in the winding direction do not overlap with a part of the exterior member.

8. The aerosol suction cartridge according to claim 7.

11. The exterior member is made of a breathable material.

8. The aerosol suction cartridge according to claim 7.

12. A covering portion covered by the exterior member and an exposed portion where the mouthpiece or the paper tube member is exposed are alternately arranged in the longitudinal direction of the mouthpiece.

8. The aerosol suction cartridge according to claim 7.

13. The exterior member has a trapezoidal shape with an upper base having a length shorter than an outer periphery of the paper tube material and a lower base having a length longer than an outer periphery of the mouthpiece, When the mouthpiece and the paper tube member are wound with the upper base side facing the paper tube member side and the lower base side facing the suction side, the lower base side partially overlaps and the upper base side does not overlap, and a part of the mouthpiece is exposed in a V-shape.

8. The aerosol suction cartridge according to claim 7.

14. The exterior member has one or more circular, polygonal, or slit-shaped openings formed therein.

8. The aerosol suction cartridge according to claim 7.

15. It is cylindrical in shape and made of breathable material. Activated carbon is impregnated inside the cylindrical shape. A mouthpiece for an aerosol suction cartridge, comprising:

16. A cylindrical paper tube member having an aerosol generating source therein; A cylindrical mouthpiece made of a breathable material; and a sheet-like exterior member for connecting the paper tube member and the mouthpiece to form a rod shape, Activated carbon is sandwiched between the mouthpiece and the paper tube member. An aerosol suction cartridge comprising:

17. A cylindrical paper tube member having an aerosol generating source therein; A cylindrical mouthpiece made of a breathable material; and a sheet-like exterior member for connecting the paper tube member and the mouthpiece to form a rod shape, Activated carbon is sandwiched between the mouthpiece and the exterior member. An aerosol suction cartridge comprising:

18. It is cylindrical in shape and made of breathable material. The cylindrical side surface has linear, planar or dot-like irregularities formed thereon. A mouthpiece for an aerosol suction cartridge, comprising:

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