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

Abstract

Provided is a non-combustion-heating flavor inhalation article that achieves a uniform balance of each component supplied to a user from the beginning to the end of use. The non-combustion-heating flavor inhalation article includes an aerosol producing rod and a mouthpiece segment. The aerosol producing rod includes a first segment including an aerosol producing base material and a second segment including a flavor component. The mouthpiece segment includes a cooling segment and a filter segment.

Description

[Technical Field]

[0001] The present invention relates to a non-combustion heated flavor inhalation article and a non-combustion heated flavor inhalation system. [Background technology]

[0002] In combustion flavor inhalation articles (cigarettes), a tobacco rod containing a tobacco filler is burned to enjoy the flavor. As an alternative to combustion flavor inhalation articles, non-combustion heating flavor inhalation articles have been proposed, which heat the tobacco rod instead of burning it to enjoy the flavor. In non-combustion heating flavor inhalation articles, for example, a tobacco rod is electrically heated to 200 to 400°C, volatilizing the tobacco flavor components, which the user inhales. A tobacco rod can be formed by wrapping a tobacco filler in a paper wrapper or the like into a cylindrical shape. For example, dried tobacco plants (mainly dried tobacco leaves) are ground and mixed, formed into a sheet with a thickness of 100 to 500 μm, and then cut into a width of approximately 1 mm and a length of 3 to 10 mm, and wrapped in a paper wrapper. Alternatively, a tobacco rod can be formed by crimping and gathering the formed product without cutting it, and then wrapping it in a paper wrapper. The moisture content of the tobacco filler can be 10 to 15% by mass, which is the equilibrium moisture of dried tobacco itself under normal conditions. In addition to tobacco plants, the tobacco filler can also contain various volatile flavorings. Furthermore, the tobacco filler can also contain an aerosol-generating substrate such as glycerin or propylene glycol. The aerosol-generating substrate volatilizes when the tobacco rod is heated, and is cooled and liquefied in a cooling segment located downstream of the tobacco rod as the user draws. The aerosol is then supplied to the user's mouth, accompanied by tobacco flavor components, allowing the user to fully enjoy the flavor. A tobacco rod equipped with a tobacco filler containing such an aerosol-generating substrate can also be referred to as an aerosol-generating rod.

[0003] Examples of heating methods for non-combustion heated flavor inhalation articles in which the aerosol-generating rod is electrically heated include a method of heating the outer periphery of the aerosol-generating rod (e.g., Patent Document 1) and a method of heating the inside of the aerosol-generating rod (e.g., Patent Document 2).On the other hand, Patent Documents 3 and 4 disclose an aerosol-generating rod having two segments as an aerosol-generating rod for a non-combustion heated flavor inhalation article. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2019-523639 [Patent Document 2] Patent No. 6000451 [Patent Document 3] International Publication No. 2019 / 105750 [Patent Document 4] International Publication No. 2019 / 110747 Summary of the Invention [Problem to be solved by the invention]

[0005] As mentioned above, in both combustion flavor inhalation articles and non-combustion heating flavor inhalation articles, the tobacco rod (aerosol-generating rod) contains a large number of components with different vapor pressures and boiling points, such as tobacco flavor components, fragrance components, aerosol-generating base materials, and moisture, which are made up of many types of substances.

[0006] In a combustion flavor inhalation article, the tip of the tobacco rod is ignited, and as the combustion section (burning cone) burns with use, the only part that is heated is the tobacco filler located immediately downstream of the combustion section (burning cone), which is at approximately 800° C. Therefore, regardless of whether it is the first or second half of use, components ranging from low to high boiling points are supplied to the user in a balanced manner at each timing of use.

[0007] On the other hand, in non-combustion heated flavor inhalation articles, heating is typically performed continuously along the entire longitudinal direction of the aerosol-generating rod, so that low-boiling-point components (components with high vapor pressure), such as tobacco flavor components, in the aerosol-generating rod are completely volatilized in the first half of use, and most of them are supplied to the user in the first half of use. Meanwhile, high-boiling-point components (components with low vapor pressure), such as the aerosol-generating substrate, begin to be supplied mainly in the second half of use. As such, low-boiling-point components are mainly supplied in the first half of use, and high-boiling-point components are mainly supplied in the second half of use, resulting in a different balance of the components supplied to the user at each timing of use. Therefore, in non-combustion heated flavor inhalation articles, it is necessary to uniformly balance the components supplied to the user from the first half to the second half of use.

[0008] An object of the present invention is to provide a non-combustion heated flavor inhalation article and a non-combustion heated flavor inhalation system in which the balance of each component supplied to the user is uniform from the first half to the second half of use. [Means for solving the problem]

[0009] The present invention includes the following embodiments.

[0010] [1] A non-combustion heated flavor inhalation article comprising an aerosol-generating rod and a mouthpiece segment, the aerosol-generating rod comprises a first segment comprising an aerosol-generating substrate and a second segment comprising a flavor component; The non-combustion heated flavor inhalation article, wherein the mouthpiece segment includes a cooling segment and a filter segment.

[0011] [2] The non-combustion heated flavor inhalation article according to [1], wherein the aerosol-generating base material is at least one selected from the group consisting of glycerin, propylene glycol, and 1,3-butanediol.

[0012] [3] The non-combustion heating flavor inhalation article according to [1] or [2], wherein the first segment further contains plant fibers.

[0013] [4] The non-combustion heating flavor inhalation article described in [3], wherein the first segment includes a cylindrical wrapper and a nonwoven fabric made of the plant fiber filled inside the wrapper, and the nonwoven fabric includes the aerosol-generating substrate.

[0014] [5] The non-combustion heating flavor inhalation article described in [4], wherein multiple sheets of the sheet-like nonwoven fabric are stacked and filled inside the wrapper in an S-shaped state.

[0015] [6] The non-combustion heated flavor inhalation article according to [4] or [5], wherein the wrapper is a metal foil, a laminated sheet of metal foil and paper, a polymer film, a laminated sheet of polymer film and paper, or paper coated on its surface with a coating agent selected from the group consisting of modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate.

[0016] [7] The wrapper is a laminate of a paper layer constituting an outer surface and a liquid-impermeable layer constituting an inner surface, the liquid-impermeable layer is a metal foil, a polymer film, or a layer of a coating material selected from the group consisting of modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate; The non-combustion heated flavor inhalation article according to any one of [4] to [6], wherein the liquid-impermeable layers of the wrapper are bonded to each other at one end and the other end of the wrapper, thereby forming the wrapper into a cylindrical shape.

[0017] [8] The non-combustion heated flavor inhalation article according to any one of [1] to [7], wherein the first segment further contains a thickener.

[0018] [9] The non-combustion heating flavor inhalation article according to any one of [1] to [8], wherein the flavor component contains a tobacco component.

[0019]

[10] The non-combustion heating flavor inhalation article according to [9], wherein the second segment comprises one or more tobacco materials selected from the mesophyll, veins, stems, flowers, and roots of a tobacco plant.

[0020]

[11] The non-combustion heating flavor inhalation article according to

[10] , wherein the tobacco material contains a flavor development aid.

[0021]

[12] The non-combustion heated flavor inhalation article according to

[10] , wherein the tobacco material contains lipids.

[0022]

[13] The non-combustion heated flavor inhalation article according to any one of [1] to

[12] , wherein the second segment is disposed on the mouthpiece segment side relative to the first segment.

[0023]

[14] A non-combustion heated flavor inhalation article according to any one of [1] to

[12] , wherein the first segment is cylindrical and extends in the axial direction of the aerosol-generating rod, and the second segment is arranged on the outer periphery of the first segment.

[0024]

[15] A non-combustion heated flavor inhalation article according to any one of [1] to

[12] , wherein the second segment is cylindrical and extends in the axial direction of the aerosol-generating rod, and the first segment is arranged on the outer periphery of the second segment.

[0025]

[16] A non-combustion heated flavor inhalation article according to any one of [1] to

[13] , wherein the first segment and the second segment are connected by being wrapped with an outer wrapper containing a heat-conductive material.

[0026]

[17] A non-combustion heating flavor inhalation article according to any one of [1] to

[16] , a heating device including a heater for heating the aerosol-generating rod of the non-combustion heating flavor inhalation article; A non-combustion heating flavor suction system.

[0027]

[18] The non-combustion heated flavor inhalation system described in

[17] , wherein the heater includes a first peripheral heater that heats the entire side of the cylindrical first segment and heats a portion of the side of the cylindrical second segment or does not heat the second segment.

[0028]

[19] A non-combustion heated flavor inhalation system as described in

[17] , wherein the heater includes a second peripheral heater that heats the entire side and bottom surfaces of the cylindrical first segment and heats at least a portion of the side surfaces of the cylindrical second segment or does not heat the second segment.

[0029]

[20] A non-combustion heated flavor inhalation system described in any one of

[17] to

[19] , wherein the heater includes an internal heater that heats the inside of the cylindrical first segment over the entire axial direction and heats the inside of the cylindrical second segment over a portion of the axial direction or does not heat the second segment.

[0030]

[21] The non-combustion heated flavor inhalation system according to any one of

[17] to

[20] , wherein the heating temperature by the heater is 200 to 350°C. [Effects of the Invention]

[0031] According to the present invention, it is possible to provide a non-combustion heated flavor inhalation article and a non-combustion heated flavor inhalation system in which the balance of each component supplied to the user is uniform from the first half to the second half of use. [Brief explanation of the drawings]

[0032] [Figure 1] 1 is a schematic diagram illustrating an example of a non-combustion heated flavor inhalation article according to an embodiment of the present invention. [Figure 2] 5A to 5C are schematic diagrams illustrating an example of a method for forming a first segment according to the present embodiment. [Figure 3] 3A and 3B are schematic diagrams showing an example of a method for bonding the wrapper of the first segment according to the present embodiment. [Figure 4]10A and 10B are schematic diagrams illustrating another embodiment of the aerosol generating rod according to the present embodiment. [Figure 5] 1 is a schematic diagram showing an example of a non-combustion heated flavor inhalation system according to an embodiment of the present invention. [Figure 6] 10 is a schematic diagram showing another example of the configuration of the heater in the non-combustion heated flavor inhalation system according to the present embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0033] [Non-combustion heating flavor inhalation product] The non-combustion heating flavor inhalation article according to this embodiment includes an aerosol-generating rod and a mouthpiece segment. The aerosol-generating rod includes a first segment including an aerosol-generating base material and a second segment including a flavor component. The mouthpiece segment also includes a cooling segment and a filter segment.

[0034] In the non-combustion heated flavor inhalation article according to this embodiment, the aerosol-generating rod includes a first segment containing an aerosol-generating substrate and a second segment containing a flavor component such as a tobacco component. Therefore, when heating the aerosol-generating rod, the heating temperature of the first segment containing the aerosol-generating substrate with a high boiling point (low vapor pressure) can be increased, while the heating temperature of the second segment containing the flavor component with a low boiling point (high vapor pressure) can be decreased. This suppresses the volatilization of the flavor component with a low boiling point (high vapor pressure) in the first half of use, and maintains the volatilization and supply of the flavor component until the second half of use. Furthermore, the volatilization of the aerosol-generating substrate with a high boiling point (low vapor pressure) in the first half of use can be promoted. Therefore, the non-combustion heated flavor inhalation article according to this embodiment can provide a uniform balance of the components supplied to the user from the first half to the second half of use.

[0035] FIG. 1( a) shows an example of a non-combustion heated flavor inhalation article according to this embodiment. The non-combustion heated flavor inhalation article 1 shown in FIG. 1( a) includes an aerosol-generating rod 2 and a mouthpiece segment 3. The aerosol-generating rod 2 includes a first segment 4 containing an aerosol-generating substrate and a second segment 5 containing a flavor component, which is located downstream of the first segment 4. The mouthpiece segment 3 includes, in this order from the upstream side, a cooling segment 6, a center hole segment 7, and a filter segment 8. Note that in this embodiment, the mouthpiece segment 3 does not necessarily include the center hole segment 7. During use, at least a portion of the aerosol-generating rod 2 (mainly the first segment 4) is heated, vaporizing the aerosol-generating substrate of the first segment 4 and the flavor component of the second segment 5. These vaporize and are transported to the mouthpiece segment 3 by inhalation, where inhalation is performed through the end of the filter segment 8.

[0036] (Aerosol generating rod) The aerosol-generating rod according to this embodiment includes a first segment containing an aerosol-generating base material and a second segment containing a flavor component. The aerosol-generating rod according to this embodiment may include a plurality of the first segments and / or the second segments.

[0037] <First Segment> The first segment according to this embodiment includes an aerosol-generating base material. Examples of the aerosol-generating base material include glycerin, propylene glycol, and 1,3-butanediol. These may be used alone or in combination.

[0038] The first segment preferably further contains plant fibers from the viewpoint of sufficiently holding the aerosol-generating substrate. Examples of plant fibers include wood pulp, hemp, corn, bamboo, cotton, and tobacco. These may be used alone or in combination of two or more. The plant fibers may be a plant fiber sheet comprising an aggregate of plant fibers. From the viewpoint of stably holding the aerosol-generating substrate on the plant fiber sheet and ensuring the required amount of aerosol generated, the plant fibers preferably account for 10 to 50 mass % of the aerosol-generating substrate, and more preferably 12 to 30 mass %.

[0039] The first segment preferably includes a cylindrical wrapper and a nonwoven fabric made of plant fibers filled inside the wrapper, the nonwoven fabric including an aerosol-generating substrate. The aerosol-generating substrate can be sufficiently held by the nonwoven fabric in the first segment. The thickness of the nonwoven fabric is not particularly limited, but may be, for example, 1 to 2 mm. The nonwoven fabric preferably contains 10 to 50% by mass, more preferably 12 to 30% by mass, of the aerosol-generating substrate.

[0040] Preferably, the first segment includes a cylindrical wrapper and paper made of plant fibers filled inside the wrapper, the paper including the aerosol-generating substrate. In the first segment, the paper can adequately hold the aerosol-generating substrate. The thickness of the paper is not particularly limited, but may be, for example, 50 to 200 μm. The paper preferably contains 10 to 50% by mass, more preferably 12 to 30% by mass, of the aerosol-generating substrate.

[0041] In the first segment, as shown in FIG. 2(a), it is preferable that multiple sheets of sheet-like nonwoven fabric 21 are stacked and folded into an S-shape and packed inside the wrapper. Because the nonwoven fabric is packed in a folded state in such a first segment, the gaps between the nonwoven fabric are usually not visible. However, when a blade-shaped or rod-shaped heater for internal heating is inserted, for example, the heater penetrates into the gaps between the nonwoven fabric, and the nonwoven fabric itself is not damaged. Therefore, when the heater is heated, the nonwoven fabric, etc., can be prevented from burning and becoming brittle, and remaining as waste inside the device.

[0042] Furthermore, in the first segment, it is preferable that the inside of the wrapper be filled with a gathered sheet of paper 31, as shown in FIG. 2(b), for example. In such a first segment, when a blade-shaped or rod-shaped heater for internal heating is inserted, the heater penetrates into the gaps between the sheets of paper, preventing damage to the paper itself. This prevents the paper from burning and becoming brittle when heated, resulting in waste remaining in the device. The nonwoven fabric may also be gathered, rather than folded into an S-shape. Gathering the nonwoven fabric creates multiple channels through which air can easily pass in the direction of airflow, thereby reducing the airflow resistance of the first segment.

[0043] Furthermore, from the viewpoint of suppressing seepage of the aerosol-generating substrate, it is desirable to use a wrapper with reduced liquid permeability. Examples of wrappers with low liquid permeability include metal foil, a laminated sheet of metal foil and paper, a polymer film, a laminated sheet of polymer film and paper, and paper coated with a coating agent that prevents liquid permeation, such as modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate. From the viewpoint of preventing liquid permeation and achieving a uniform temperature distribution in the longitudinal direction of the first segment, a wrapper containing metal foil with excellent thermal conductivity is preferred. Furthermore, by using a laminated sheet of metal foil and paper, with the metal foil on the inside and the paper on the outside after wrapping the rod, the appearance can be made similar to that of a conventional combustible flavor inhalation product (cigarette). When the amount of aerosol-generating substrate contained in the first segment is relatively small, it is preferable to use paper whose surface is coated with a coating agent that prevents liquid penetration, such as modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate, because this makes the rod hardness, elasticity, and feel of the first segment similar to those of a conventional combustion-type flavor inhalation article (cigarette).

[0044] When the wrapper is a laminate of a paper layer constituting the outer surface and a liquid-impermeable layer constituting the inner surface, the liquid-impermeable layer can be a metal foil, a polymer film, or a layer of a coating agent selected from the group consisting of modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate. Preferably, the liquid-impermeable layers of the wrapper are bonded to each other at one end and the other end of the wrapper, thereby forming the wrapper into a cylindrical shape. For example, as shown in FIG. 3 , a nonwoven fabric 22 containing an aerosol-generating substrate is filled in a cylindrical wrapper that is a laminate of a paper layer 24 constituting the outer surface and a liquid-impermeable layer 23 constituting the inner surface. The liquid-impermeable layers 23 are bonded to each other at one end and the other end of the wrapper (bonded portion 25), thereby forming the wrapper into a cylindrical shape. Bonding the liquid-impermeable layers in this manner can further prevent the aerosol-generating substrate from seeping out.

[0045] The first segment preferably further contains a thickener to improve the retention of the aerosol-generating substrate. For example, aerosol-generating substrates such as glycerin and propylene glycol are liquid at room temperature, and when incorporated in large amounts into a nonwoven fabric or the like, they may leak out of the nonwoven fabric. However, by further incorporating a thickener into the nonwoven fabric or the like, the leakage of the aerosol-generating substrate to the outside can be suppressed, improving handleability. Examples of thickeners include thickening polysaccharides such as gellan gum, tamarind gum, agar, carrageenan, pectin, and alginate; proteins such as collagen and gelatin; and modified celluloses such as HPC, CMC, and HPMC. These thickeners may be used alone or in combination. When the first segment contains a thickener, the content of the thickener is preferably 0.1 to 5.0 parts by mass per 100 parts by mass of the aerosol-generating substrate, depending on the type of thickener used. For example, when using glycerin as the aerosol-generating base, native gellan gum as the thickener, and water as the diluent, a mixture of 0.3 to 0.7 parts by mass of native gellan gum and 23.5 parts by mass of water per 100 parts by mass of glycerin results in an aerosol-generating base with a viscosity of 2,000 to 26,000 (mPa·s at 25°C), which is excellent in viscosity retention. This aerosol-generating base is in a gel state at room temperature and becomes liquid when heated to approximately 60 to 70°C. In this way, when producing the first segment, the aerosol-generating base can be easily impregnated by heating the aerosol-generating base to a liquid state and applying it to a nonwoven fabric or paper. After the temperature drops to approximately room temperature, the aerosol-generating base becomes gel-like and is stably retained.

[0046] The first segment may contain, in addition to the aerosol-generating substrate, plant fiber (nonwoven fabric or paper), wrapper, and thickener, tobacco components, flavoring components other than tobacco components (external flavorings), etc. Examples of flavoring components other than tobacco components include L-menthol, licorice extract, reducing sugar, and cocoa extract. Note that the first segment may not contain a flavoring component.

[0047] The axial length of the first segment is not particularly limited, but may be, for example, 5 to 15 mm. The circumferential length of the first segment is not particularly limited, but may be, for example, 15 to 24 mm.

[0048] <Second Segment> The second segment according to this embodiment contains a flavor component. Examples of flavor components include tobacco components such as those derived from dried tobacco plants, tobacco extracts, and tobacco extracts that have been concentrated or fractionated, as well as flavor components other than the tobacco components. When the second segment contains a tobacco component, the second segment may contain one or more tobacco materials selected from the mesophyll, veins, stems, flowers, and roots of tobacco plants. The tobacco material may also be a tobacco sheet, as described below. The second segment may contain, for example, a tubular wrapper and the tobacco material filled inside the wrapper.

[0049] The tobacco material may contain a flavor-developing aid. The flavor-developing aid may include at least one of carbonates, bicarbonates, oxides, and hydroxides of alkali metals and / or alkaline earth metals. Preferably, the flavor-developing aid is potassium carbonate or sodium carbonate. Because the majority of tobacco components contained in tobacco materials are amines, the inclusion of a flavor-developing aid in the tobacco material ensures the volatilization of the tobacco components even at relatively low temperatures, allowing the tobacco flavor to be fully developed. The amount of flavor-developing aid contained in the tobacco material is preferably 5 to 20 parts by mass per 100 parts by mass of the tobacco material. The addition of the flavor-developing aid may cause the pH of the tobacco material to be 7 to 11. The pH can be measured using a pH meter (e.g., IQ240 manufactured by IQ Scientific Instruments Inc.). For example, 2 to 10 g of tobacco material is mixed with 10 times the amount of distilled water by mass, and the mixture of water and tobacco material is shaken at 200 rpm for 10 minutes at room temperature (e.g., 22°C), and then allowed to stand for 5 minutes. The pH of the resulting extract is then measured with a pH meter.

[0050] The tobacco material may also contain lipids. Examples of lipids include acylglycerols such as monoglycerides, diglycerides, and triglycerides, and fatty acids. These may be used alone or in combination. When the tobacco material contains lipids, the interaction between the lipids and flavor components such as nicotine contained in the tobacco material can suppress the excessive volatilization of flavor components such as nicotine. Furthermore, when the tobacco material contains lipids, the aerosol generated during use may contain trace amounts of lipids. This can suppress the re-vaporization of flavor components after the flavor components and the vapor of the aerosol-generating base cool to form the aerosol. The amount of lipid contained in the tobacco material is preferably 2 to 15 parts by mass per 100 parts by mass of the tobacco material.

[0051] The second segment can be, for example, a cylindrical wrapper filled with shredded tobacco leaves (strands), a cylindrical wrapper filled with shredded tobacco sheets randomly or in a uniform orientation, or a cylindrical wrapper filled with gathered tobacco sheets. Hereinafter, shredded tobacco leaves and shredded tobacco sheets are collectively referred to as "tobacco shreds." Examples of wrappers include cigarette paper shaped into a cylindrical shape. The nicotine content of the filler filled in the wrapper is preferably 1.5% by mass or more, and more preferably 2.0 to 4.0% by mass. The packing density of the shredded tobacco filled in the wrapper is 0.2 to 0.7 mg / mm 3 This is preferable because it ensures sufficient generation of flavor components during use and also ensures sufficient rod hardness of the second segment.

[0052] There are no particular limitations on the size or preparation method of the tobacco shreds. One example is aged tobacco leaves shredded to a width of 0.5 mm or more and 2.0 mm or less and a length of 3 mm or more and 10 mm or less. Tobacco shreds of this size are preferable for filling into a filler. Another example is processed tobacco leaves shredded to a width of 0.5 mm or more and 2.0 mm or less and a length longer than the tobacco shreds described above, preferably about the same length as the filler (strand-type shreds). For strand-type shreds, it is preferable to use a tobacco sheet from the viewpoint of ease of molding.

[0053] The moisture content of the tobacco shreds can be 10% by mass or more and 15% by mass or less, and preferably 11% by mass or more and 13% by mass or less, relative to the total mass of the tobacco shreds. Such a moisture content can suppress the occurrence of stains after the tobacco shreds are filled into a filling material.

[0054] A tobacco sheet is obtained by forming a composition containing aged tobacco leaves into a sheet shape. The aged tobacco leaves used for the tobacco sheet are not particularly limited, but examples thereof include those that have been deboned and separated into lamina and midrib. In addition, in this specification, the term "sheet" refers to a shape having a pair of approximately parallel main surfaces and side surfaces.

[0055] Tobacco sheets can be formed by known methods such as papermaking, casting, rolling, etc. Details of various tobacco sheets formed by such methods are disclosed in "Encyclopedia of Tobacco," Tobacco Research Center, March 31, 2009.

[0056] Examples of methods for forming tobacco sheets by papermaking include methods including the following steps. (1) A process in which aged tobacco leaves are roughly crushed and mixed and stirred with a solvent such as water to extract water-soluble components from the aged tobacco leaves. (2) A process of separating the water-soluble components into a water extract and a residue. (3) A step of concentrating the aqueous extract by drying under reduced pressure. (4) A process in which pulp is added to the residue and the mixture is fibrous in a refiner to obtain a mixture (homogenization process). (5) A process of making paper from the mixture of fiberized residue and pulp. (6) A process of adding a concentrated solution of the water extract to the paper-made sheet and drying it to obtain a tobacco sheet. When forming a tobacco sheet using this method, a step of removing some components such as nitrosamines may be added (see JP 2004-510422 A). The tobacco sheet to be used in a non-combustion heating flavor inhalation product may contain an aerosol-generating substrate. When producing a tobacco sheet using a paper-making method, the concentrated aqueous extract and the aerosol-generating substrate may be mixed and added in step (6) above, or the aerosol-generating substrate may be added after step (6) above.

[0057] An example of a method for forming a tobacco sheet by the slurry method includes the following steps. (1) A process of mixing water, pulp, a binder, and ground aged tobacco to obtain a mixture (homogenization process). (2) The mixture is thinly spread (cast) and dried to form a tobacco sheet. When forming a tobacco sheet using this method, a step of removing some components such as nitrosamines by irradiating a slurry of water, pulp, binder, and crushed tobacco leaves with ultraviolet light or X-rays may be added. The tobacco sheet used in the non-combustion heated flavor inhalation product may contain an aerosol-generating substrate. When producing a tobacco sheet using the slurry method, the aerosol-generating substrate may be mixed into the mixture in step (1) above, or may be sprayed onto the dried sheet after step (2).

[0058] An example of a method for forming a tobacco sheet by rolling includes the following steps. (1) A process of mixing water, pulp, a binder, and ground aged tobacco to obtain a mixture (homogenization process). (2) A step of feeding the mixture into a plurality of rolling rollers and rolling it. (3) The rolled product on the rolling rollers is peeled off with a doctor knife, transferred to a net conveyor, and dried in a dryer. When forming a tobacco sheet using this method, the surface of each rolling roller may be heated or cooled, and the rotation speed of each rolling roller may be adjusted, depending on the purpose. Furthermore, by adjusting the distance between each rolling roller, a tobacco sheet of the desired basis weight can be obtained. The tobacco sheet to be used in the non-combustion heating flavor inhalation product may contain an aerosol-generating substrate. When producing a tobacco sheet using the rolling method, the aerosol-generating substrate may be mixed with the mixture in (1) above, or the aerosol-generating substrate may be sprayed onto the dried sheet after step (3).

[0059] In addition to the above-mentioned molding method, a nonwoven tobacco sheet can be molded according to a method described in WO 2014 / 104078, which includes the following steps: (1) A process of mixing ground aged tobacco with a binder to obtain a mixture (homogenization process). (2) A step of sandwiching the mixture between nonwoven fabrics. (3) A process of forming the laminate into a fixed shape by heat welding to obtain a nonwoven tobacco sheet. When the aerosol-forming substrate is contained in a nonwoven tobacco sheet, the aerosol-forming substrate may be spray-coated after (3).

[0060] In the homogenization process described in each of the above methods, from the viewpoint of obtaining a tobacco sheet with a certain strength, it is preferable that the average fiber length of the tobacco fibers contained in each mixture is 200 μm or more and 1000 μm or less, and that the freeness of each mixture is 20°SR or more and 50°SR or less. The average fiber length of the tobacco fibers is measured by optical automatic analysis (JIS P8226-2) using non-polarized light with a fiber count of 20,000 or more. The freeness is measured by the Schopper-Riegler method (JIS P8121).

[0061] The length and width of the tobacco sheet are not particularly limited and can be adjusted appropriately depending on the manner in which the tobacco sheet is filled into the filling material described below. The thickness of the tobacco sheet is not particularly limited, but is preferably 150 μm or more and 1000 μm or less, and more preferably 200 μm or more and 600 μm or less, in consideration of the balance between heat transfer efficiency and strength.

[0062] The composition of the tobacco sheet is not particularly limited, but for example, the content of aged tobacco leaves is preferably 50% by mass or more and 95% by mass or less, based on the total mass of the tobacco sheet. The tobacco sheet may also contain a binder, and examples of such binders include guar gum, xanthan gum, CMC (carboxymethylcellulose), and CMC-Na (sodium salt of carboxymethylcellulose). The binder content is preferably 1% by mass or more and 20% by mass or less, based on the total mass of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of such other additives include fillers such as pulp. The filler content is not particularly limited, but is preferably 1% by mass or more and 20% by mass or less, based on the total mass of the tobacco sheet. Here, the water extraction residue of aged tobacco, which is an intermediate product when forming a tobacco sheet by paper-making, is different from the filler.

[0063] The packing density of the tobacco material inside the wrapper can be appropriately set depending on the form of the tobacco material to be packed, the desired flavor, the airflow resistance, etc. For example, the packing density is 0.2 mg / mm 3 More than 0.7mg / mm 3 The following embodiments can be mentioned: The packing density is calculated by the ratio of the mass of the tobacco material to the internal volume of the rod formed by the wrapper.

[0064] The axial length of the second segment is not particularly limited, but may be, for example, 5 to 15 mm. The circumferential length of the second segment is not particularly limited, but may be, for example, 15 to 24 mm.

[0065] <Configuration of the aerosol generating rod> The configuration of the aerosol-generating rod is not particularly limited as long as the aerosol-generating rod includes the first segment and the second segment. However, it is preferable that the second segment be disposed on the mouthpiece segment side (downstream side) of the first segment. For example, as shown in FIG. 1(a), a cylindrical second segment 5 can be disposed on the mouthpiece segment 3 side (downstream side) of the cylindrical first segment 4. In FIG. 1(a), the first segment 4 can be configured by filling a first wrapper 10 with a nonwoven fabric 9 made of plant fibers and containing an aerosol-generating substrate. The second segment 5 can be configured by filling a second wrapper 12 with a tobacco material 11. The ease of volatilization of each component contained in the first segment and the second segment is primarily determined by the heating temperature, but the presence of a substance that is highly compatible with the volatilizing component in the vicinity promotes volatilization of the component. In this configuration, the aerosol-generating base material volatilized in the first segment is cooled and liquefied (aerosolized) the instant it flows into the second segment during inhalation. The flavor components (e.g., nicotine) present in the second segment are dissolved in the aerosol and carried out of the aerosol-generating rod, thereby reducing the concentration of the flavor components in the second segment and promoting their volatilization. This ensures release efficiency without significantly increasing the temperature of the second segment. Therefore, the flavor components can be released from the second segment with each puff at low temperatures, thereby preventing the flavor components from being exhausted. The ratio (A / B) of the length (A) of the first segment to the length (B) of the second segment in the axial direction of the aerosol-generating rod is preferably 0.3 to 3.0, more preferably 0.5 to 2.0.

[0066] The first segment and the second segment can be connected by being wrapped with an outer wrapper. Here, the outer wrapper may be a normal paper wrapper, but preferably contains a thermally conductive material. By wrapping the first segment and the second segment with an outer wrapper containing a thermally conductive material, even when, for example, only the side surface of the first segment is heated by a peripheral heater, the heat from the heater can be uniformly and efficiently transferred to the second segment. Examples of thermally conductive materials include metal foils with higher thermal conductivity than paper. In particular, metal foils such as aluminum foil and stainless steel foil are preferred, as they have a thermal conductivity of 10 W / m·K or more, are inexpensive, rust-resistant, and have excellent processability (thicknesses of several μm to 10 μm, high tensile strength, and easy bending). For reference, Table 1 shows the thermal conductivities of representative metal foils (alloy foils).

[0067] [Table 1]

[0068] Alternatively, the cylindrical first segment may extend in the axial direction of the aerosol-generating rod, and the second segment may be disposed on the outer periphery of the first segment. For example, as shown in FIG. 4(a), the second segment 5 may be disposed on the outer periphery (side) of the cylindrical first segment 4. In this configuration, the first segment can be heated by inserting an internal heater such as a blade heater into it. This configuration is preferable because the first segment, which is to be heated at a higher temperature, is formed in a thin, wound shape, allowing the internal heater to efficiently heat the first segment to a high temperature. Furthermore, by adjusting the packing density of each filler, the ease of air flow in the vertical direction of the cylindrical rod during inhalation can be made easier through the second segment than through the first segment. This allows the aerosol-generating substrate, primarily generated from the first segment, to move to the second segment, entraining flavor components, before moving to the mouthpiece, rather than directly toward the mouthpiece. In this case, the interface between the first and second segments is preferably made of a permeable wrapper that allows gases and aerosols to pass through, such as paper with an air permeability of 1,000 to 30,000 Coresta units. Even if a wrapper-like material is not present at the interface, this is preferable from the viewpoint of promoting the transfer of gas components from the first segment to the second segment.

[0069] Alternatively, the cylindrical second segment may extend in the axial direction of the aerosol-generating rod, and the first segment may be disposed on the outer periphery of the second segment. For example, as shown in FIG. 4(b), the first segment 4 may be disposed on the outer periphery (side) of the cylindrical second segment 5. In this configuration, the side of the first segment can be heated by a peripheral heater. This configuration is preferable because the first segment, which is desired to be heated at a higher temperature, can be efficiently heated to a high temperature by an external heater. Furthermore, by adjusting the packing density of each filler to make the air flow more easily through the second segment than through the first segment during inhalation, the aerosol-generating substrate, mainly generated from the first segment, does not move directly toward the mouthpiece, but rather the aerosol-generating substrate mainly generated from the first segment moves to the second segment, carrying flavor components with it, before moving to the mouthpiece. In this case, the interface between the first and second segments is preferably made of a permeable wrapper that allows gases and aerosols to pass through, such as paper with an air permeability of 1,000 to 30,000 Coresta units. Even if a wrapper-like material is not present at the interface, this is preferable from the viewpoint of promoting the transfer of gas components from the first segment to the second segment.

[0070] The axial length of the aerosol-generating rod is not particularly limited, but may be, for example, 12 to 50 mm. The circumferential length of the aerosol-generating rod is not particularly limited, but may be, for example, 15 to 24 mm.

[0071] (Mouthpiece segment) The mouthpiece segment according to the present embodiment includes a cooling segment and a filter segment. The mouthpiece segment according to the present embodiment may include a plurality of cooling segments and / or filter segments. The mouthpiece segment according to the present embodiment may also include segments other than the cooling segment and the filter segment. Examples of other segments include a center hole segment.

[0072] <Cooling segment> As shown in Fig. 1(a), the cooling segment 6 may be configured as a cylindrical member 13. The cylindrical member 13 may be, for example, a cardboard tube formed into a cylindrical shape.

[0073] The cooling segment is located downstream of the aerosol-generating rod. The function required of the cooling segment is to cool and liquefy (aerosolize) the flavor component and aerosol-generating substrate vapors generated by the aerosol-generating rod during use while minimizing the reduction of the flavor component and aerosol-generating substrate vapors due to filtration or adsorption. For example, during inhalation, the difference in the internal temperature between the cooling segment inlet and the cooling segment outlet may be 20°C or more. When the flavor component and high-temperature vapor components of the aerosol-generating substrate pass through a cellulose acetate fiber-filled segment used as a filter member in a typical combustion-type flavor inhalation article, the temperature difference between the segment inlet and the segment outlet may be 20°C or more. However, when the flavor component and aerosol-generating substrate vapor pass through the fiber-filled layer, a large amount of the flavor component and aerosol-generating substrate vapor is reduced by filtration or adsorption. This fiber-filled layer is not referred to as the cooling segment in this application.

[0074] One embodiment of the cooling segment may be a hollow tube made from a single sheet of paper or a sheet of paper glued together and processed into a cylindrical shape. In addition to the aforementioned paper, the tube may be made from a corrugated sheet of cellulose acetate fiber or a plastic film such as polyolefin or polyester. Furthermore, it is preferable that the tube has holes around it for introducing external air, so that room-temperature external air can be brought into contact with high-temperature steam to increase the cooling effect. The cooling effect can also be increased by applying a polymer coating such as polyvinyl alcohol or a polysaccharide coating such as pectin to the inner surface of the tube, utilizing the heat of solution associated with the heat absorption or phase change of the coating. The airflow resistance of this cylindrical cooling segment is zero mmH2O.

[0075] Another preferred embodiment of the cooling segment is a cylindrical tube filled with a cooling sheet material. In this case, one or more airflow channels can be provided in the flow direction to achieve low levels of component removal during segment passage while still providing cooling through the cooling sheet. The airflow resistance of the cooling segment filled with this cooling sheet is preferably 0 to 30 mmH2O. The resistance to dryness (RTD) is the pressure required to force air through the entire length of the segment under a test at 22°C and 101 kPa (760 Torr) with a flow rate of 17.5 ml / sec. RTD is typically expressed in mmH2O and is measured in accordance with ISO 6565:2011. Even in this embodiment filled with a cooling sheet, holes can be provided in the tube for introducing external air.

[0076] The total surface area of ​​the cooling sheet material is 300mm 2 / mm or more, 1000mm 2 / mm or less. This surface area is the surface area per length (mm) of the cooling sheet member in the airflow direction. The total surface area of ​​the cooling sheet member is 400mm 2 / mm or more is preferable, and 450mm 2 / mm or more is more preferable, while 600mm 2 / mm or less is preferable, and 550mm2 / mm or less is more preferable.

[0077] From the viewpoint of cooling function, it is desirable for the cooling sheet member to have a large surface area. From the viewpoint of reducing removal of flavor components and aerosol-forming substrates by filtration or adsorption, it is desirable for the cooling segment filled with the cooling sheet member to have a low airflow resistance. Therefore, in a preferred embodiment, the cooling sheet may be formed by a thin sheet of material that is wrinkled to form channels in the flow direction, and then pleated, gathered, and folded.

[0078] In some embodiments, the thickness of the constituent material of the cooling sheet member is 5 μm or more and 500 μm or less, for example, 10 μm or more and 250 μm or less.

[0079] The cooling sheet member material may be a sheet material such as metal foil, polymer sheet, low-permeability paper, etc. In one embodiment, the cooling segment may include a sheet material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil.

[0080] It is also desirable to use paper as the material for the cooling sheet member from the viewpoint of reducing the environmental load. The paper used for the cooling sheet member has a basis weight of 30 to 100 g / m 2 and a thickness of 20 to 100 μm is desirable. From the viewpoint of minimizing the removal of flavor components and aerosol-generating base components in the cooling segment, it is desirable for the air permeability of the paper used as the cooling sheet material to be low, preferably 10 Coresta units or less. By applying a polymer coating such as polyvinyl alcohol or a polysaccharide coating such as pectin to the paper used as the cooling sheet member, the cooling effect can be increased by utilizing the heat of solution associated with the endothermic heat and phase change of the coating.

[0081] In FIG. 1(a), the cylindrical member 13 and the mouthpiece lining paper 20 (described later) are provided with perforations 14 that penetrate both. The presence of the perforations 14 allows outside air to be introduced into the cooling segment 6 during inhalation. As a result, the vaporized components of the aerosol generated by heating the aerosol-generating rod 2 come into contact with the outside air, their temperature drops, and they are liquefied to form an aerosol. The diameter (distance across) of the perforations 14 is not particularly limited, but may be, for example, 0.5 mm or more and 1.5 mm or less. The number of perforations 14 is not particularly limited, and may be one or two or more. For example, a plurality of perforations 14 may be provided around the circumference of the cooling segment 6.

[0082] The amount of outside air introduced through the perforations 14 is preferably 85% by volume or less, more preferably 80% by volume or less, of the total volume of gas inhaled by the user. By keeping the ratio of the outside air amount at 85% by volume or less, it is possible to sufficiently suppress the reduction in flavor due to dilution by the outside air. This is also called the ventilation ratio. From the viewpoint of cooling performance, the lower limit of the ventilation ratio range is preferably 55% by volume or more, more preferably 60% by volume or more.

[0083] In some embodiments, the generated aerosol may experience a temperature drop of 10° C. or more as it passes through the cooling segment and is drawn by the user. In another embodiment, the temperature drop may be 15° C. or more, and in yet another embodiment, 20° C. or more.

[0084] The cooling segment may be formed in a rod shape with an axial length of, for example, 7 mm to 30 mm, For example, the axial length of the cooling segment may be 20 mm.

[0085] In some embodiments, the cooling segment has a substantially circular axial cross-sectional shape, with a circumferential length of preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm.

[0086] <Center hole segment> The center hole segment is composed of a filling layer having one or more hollow portions and an inner plug wrapper (inner wrapping paper) covering the filling layer. For example, as shown in FIG. 1(a), the center hole segment 7 is composed of a second filling layer 15 having a hollow portion and a second inner plug wrapper 16 covering the second filling layer 15. The center hole segment 7 functions to increase the strength of the mouthpiece segment 3. The second filling layer 15 can be, for example, a rod with an inner diameter of 1.0 mm or more and 5.0 mm or less, which is densely packed with cellulose acetate fibers and hardened by adding a plasticizer containing triacetin in an amount of 6% by mass or more and 20% by mass or less relative to the mass of the cellulose acetate. Because the second filling layer 15 has a high fiber packing density, during inhalation, air and aerosol flow only through the hollow portions and hardly flow within the second filling layer 15. Because the second filling layer 15 inside the center hole segment 7 is a fiber-packed layer, the feel from the outside during use is less likely to cause discomfort to the user. It is also possible for the center hole segment 7 not to have the second inner plug wrapper 16 and for its shape to be maintained by thermoforming.

[0087] <filter segment> The configuration of the filter segment is not particularly limited, and may be composed of one or more packed layers. For example, as shown in FIG. 1(a), in a filter segment 8, the outside of the first packed layer 17 may be wrapped with a first inner plug wrapper 18 (inner wrapping paper). The airflow resistance per filter segment can be appropriately changed depending on the amount and material of the packing filled in the filter segment. For example, when the packing is cellulose acetate fiber, the airflow resistance can be increased by increasing the amount of cellulose acetate fiber filled in the filter segment. When the packing is cellulose acetate fiber, the packing density of the cellulose acetate fiber is 0.13 to 0.18 g / cm. 3Furthermore, even at the same packing density, a thicker cellulose acetate fiber is preferred to achieve lower airflow resistance. The thickness of a single cellulose acetate fiber is preferably 5 to 20 denier / filament. Furthermore, from the viewpoint of high-speed production of filter segments, a thickness of 7 to 13 denier / filament is even more preferred. The airflow resistance is a value measured using an airflow resistance measuring device (product name: SODIMAX, manufactured by SODIM).

[0088] The circumferential length of the filter segment is not particularly limited, but is preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm. The axial length of the filter segment can be selected from 5 to 20 mm, and is selected so that the airflow resistance is 10 to 60 mmH2O / seg. The axial length of the filter segment is preferably 5 to 9 mm, more preferably 6 to 8 mm. The cross-sectional shape of the filter segment is not particularly limited, but may be, for example, circular, elliptical, polygonal, etc. Furthermore, a flavor-containing breakable capsule, flavor beads, or flavor may be directly added to the filter segment.

[0089] As shown in FIG. 1( a), the center hole segment 7 and the filter segment 8 can be connected by an outer plug wrapper (outer wrapping paper) 19. The outer plug wrapper 19 can be, for example, a cylindrical piece of paper. The aerosol-generating rod 2, the cooling segment 6, and the connected center hole segment 7 and filter segment 8 can be connected by a mouthpiece lining paper 20. These connections can be made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper 20, placing the three segments inside, and then wrapping them. These segments may also be connected in multiple places using multiple lining papers. As shown in FIG. 1( b), the first segment 4 may be fixed by the mouthpiece lining paper 20. As shown in FIG. 1( c), the first segment 4 and the second segment 5 may be connected by an outer wrapper 34, and then the aerosol-generating rod 2, the cooling segment 6, and the connected center hole segment 7 and filter segment 8 may be connected by the mouthpiece lining paper 20.

[0090] (Configuration of non-combustion heating flavor inhalation article) The axial length of the non-combustion heated flavor inhalation article according to this embodiment is not particularly limited, but is preferably 40 mm to 90 mm, more preferably 50 mm to 75 mm, and even more preferably 50 mm to 60 mm. The circumferential length of the non-combustion heated flavor inhalation article is preferably 16 mm to 25 mm, more preferably 20 mm to 24 mm, and even more preferably 21 mm to 23 mm. For example, the aerosol-generating rod may be 20 mm long, the cooling segment 20 mm long, the center hole segment 8 mm long, and the filter segment 7 mm long. The length of the filter segment may be selected within a range of 4 mm to 20 mm. The airflow resistance of the filter segment is selected to be 10 mmH2O / seg or more and 60 mmH2O / seg or less per segment. The lengths of these individual segments may be appropriately adjusted depending on manufacturing suitability, required quality, and the like. Furthermore, even if a center hole segment is not used and only a filter segment is disposed downstream of the cooling segment, the article can still function as a non-combustion heated flavor inhalation article.

[0091] [Non-combustion heating flavor suction system] The non-combustion heated flavor inhalation system according to this embodiment includes the non-combustion heated flavor inhalation article according to this embodiment and a heating device having a heater that heats the aerosol-generating rod of the non-combustion heated flavor inhalation article. Because the non-combustion heated flavor inhalation system according to this embodiment includes the non-combustion heated flavor inhalation article according to this embodiment, the balance of each component supplied to the user is uniform from the first half to the second half of use. The non-combustion heated flavor inhalation system according to this embodiment may have other configurations in addition to the non-combustion heated flavor inhalation article according to this embodiment and the heating device.

[0092] An example of a non-combustion heated flavor inhalation system according to this embodiment is shown in FIG. 5. The non-combustion heated flavor inhalation system shown in FIG. 5 includes a non-combustion heated flavor inhalation article 1 according to this embodiment and a heating device 27 that heats the aerosol-generating rod of the non-combustion heated flavor inhalation article 1 from the outside. FIG. 5(a) shows the non-combustion heated flavor inhalation article 1 in a state before it is inserted into the heating device 27, and FIG. 5(b) shows the non-combustion heated flavor inhalation article 1 in a state where it is inserted into the heating device 27 and heated. The heating device 27 shown in FIG. 5 includes a body 28, a heater 29, a metal tube 30, a battery unit 31, and a control unit 32. The body 28 has a cylindrical recess 33, and the heater 29 and the metal tube 30 are arranged on the inner side of the recess 33 at positions corresponding to the aerosol-generating rod (mainly the first segment) of the non-combustion heated flavor inhalation article 1 inserted into the recess 33. The heater 29 can be a heater using electrical resistance, and is heated by being supplied with power from a battery unit 31 in response to an instruction from a control unit 32 that controls temperature. The heat generated by the heater 29 is transmitted to the aerosol-generating rod (mainly the first segment) of the non-combustion heated flavor inhalation article 1 through a metal tube 30 having high thermal conductivity.

[0093] 5(b) is a schematic illustration, and thus there is a gap between the outer periphery of the non-combustion heated flavor inhalation article 1 and the inner periphery of the metal tube 30. However, in reality, it is preferable that there is no gap between the outer periphery of the non-combustion heated flavor inhalation article 1 and the inner periphery of the metal tube 30 for the purpose of efficient heat transfer. Furthermore, although the heating device 27 heats the aerosol-generating rod (mainly the first segment) of the non-combustion heated flavor inhalation article 1 from the outside, it may also heat from the inside. When heating from the inside, it is preferable to use a rigid plate-shaped, blade-shaped, or columnar heater without using the metal tube 30. Examples of such heaters include ceramic heaters in which molybdenum, tungsten, or the like is provided on a ceramic substrate.

[0094] In the non-combustion heated flavor inhalation system according to this embodiment, the heater preferably includes a first peripheral heater that heats the entire side surface of the cylindrical first segment and a portion of the side surface of the cylindrical second segment, or does not heat the second segment at all. This configuration allows the heating temperature of the first segment containing the aerosol-generating substrate with a high boiling point (low vapor pressure) to be high, and the heating temperature of the second segment containing the flavor component with a low boiling point (high vapor pressure) to be low, thereby achieving a uniform balance of the components delivered to the user from the first to second half of use. The first peripheral heater, for example, heater 29 shown in FIG. 5, can heat the entire side surface of the cylindrical first segment and a portion of the side surface of the cylindrical second segment. While heater 29 in FIG. 5 heats a portion of the side surface of the second segment, the second segment may not necessarily be heated. In this case, the second segment is heated by heat transfer or residual heat from the first segment.

[0095] In another non-combustion heating flavor inhalation system according to this embodiment, the heater preferably includes a second peripheral heater that heats the entire side and bottom surfaces of the cylindrical first segment and at least a portion of the side surfaces of the cylindrical second segment, or does not heat the second segment. This configuration, as in the previous embodiment, allows for a uniform balance of the components supplied to the user from the first half to the second half of use. The second peripheral heater, for example, heater 29 shown in FIG. 6(a), can heat the entire side and bottom surfaces of the cylindrical first segment and also heat the side surfaces of the cylindrical second segment. While heater 29 in FIG. 6(a) heats the side surfaces of the second segment, it is not necessary to heat the second segment. In this case, the second segment is heated by heat transfer or residual heat from the first segment.

[0096] In another non-combustion heated flavor inhalation system according to this embodiment, the heater preferably includes an internal heater that heats the interior of the cylindrical first segment over the entire axial direction and heats the interior of the cylindrical second segment only partially in the axial direction, or does not heat the second segment at all. This configuration, as in the previous embodiment, allows for a uniform balance of the components supplied to the user from the first half to the second half of use. The internal heater may heat the interior of the cylindrical first segment over the entire axial direction and not heat the cylindrical second segment, as in heater 29 shown in FIG. 6(b), for example. Note that, although heater 29 does not heat the second segment in FIG. 6(b), the interior of the second segment may be heated only partially in the axial direction.

[0097] In another non-combustion heated flavor inhalation system according to this embodiment, the heater may be a combination of the first or second peripheral heater and the internal heater. The heater may be, for example, a combination of a peripheral heater that heats the entire side surfaces of the columnar first and second segments and an internal heater that heats the entire interior of the columnar first segment in the axial direction but does not heat the columnar second segment, as in heater 29 shown in Fig. 6(c).

[0098] The heating temperature by the heater is preferably 200 to 350° C. The heating temperature refers to the temperature of the heater.

Claims

1. a non-combustion heating flavor inhalation article including an aerosol-generating rod and a mouthpiece segment; a heating device including a heater for heating the aerosol-generating rod of the non-combustion heating flavor inhalation article; A non-combustion heated flavor inhalation system comprising: the aerosol-generating rod comprises a first segment including an aerosol-generating substrate and a second segment including a flavor component including a tobacco component, the second segment being disposed on the mouthpiece segment side relative to the first segment, and the first segment and the second segment being connected by being wrapped with an outer wrapper including a heat-conductive material; the mouthpiece segment includes a cooling segment and a filter segment; The heater is a first peripheral heater that heats the entire side surface of the columnar first segment and heats a part of the side surface of the columnar second segment or does not heat the second segment; A second peripheral heater that heats the entire side and bottom surfaces of the columnar first segment and heats a portion of the side surfaces of the columnar second segment or does not heat the second segment; or an internal heater that heats the inside of the columnar first segment over the entire axial length and heats the inside of the columnar second segment over a portion of the axial length or does not heat the second segment; Including, the first segment includes a cylindrical wrapper and a nonwoven fabric made of the plant fiber filled inside the wrapper, the nonwoven fabric including the aerosol-generating substrate; A non-combustion heated flavor inhalation system, wherein the first segment further comprises a thickener, and the content of the thickener is 0.1 to 5.0 parts by mass per 100 parts by mass of the aerosol-generating base material.

2. 2. The non-combustion heated flavor inhalation system according to claim 1, wherein the aerosol-generating base material is at least one selected from the group consisting of glycerin, propylene glycol, and 1,3-butanediol.

3. 3. The non-combustion, heating, flavor inhalation system according to claim 1, wherein a plurality of sheets of the nonwoven fabric are stacked and filled inside the wrapper in an S-shaped state.

4. 4. The non-combustion heating flavor inhalation system according to claim 1, wherein the wrapper is a metal foil, a laminated sheet of metal foil and paper, a polymer film, a laminated sheet of polymer film and paper, or paper having a surface coated with a coating agent selected from the group consisting of modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate.

5. The wrapper is a laminate of a paper layer constituting an outer surface and a liquid-impermeable layer constituting an inner surface, the liquid-impermeable layer is a metal foil, a polymer film, or a layer of a coating material selected from the group consisting of modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate; The non-combustion heating flavor inhalation system according to any one of claims 1 to 4, wherein the liquid-impermeable layers of the wrapper are bonded to each other at one end and the other end of the wrapper, thereby forming the wrapper into a cylindrical shape.

6. The non-combustion heating flavor inhalation system according to any one of claims 1 to 5, wherein the second segment comprises one or more tobacco materials selected from the mesophyll, veins, stems, flowers, and roots of a tobacco plant.

7. The non-combustion heating flavor inhalation system according to claim 6 , wherein the tobacco material contains a flavor-developing aid.

8. The non-combustion heating flavor inhalation system according to claim 6 , wherein the tobacco material contains lipids.

9. The non-combustion heated flavor inhalation system according to any one of claims 1 to 8, wherein the heater includes a first peripheral heater that heats the entire side surface of the columnar first segment and heats a portion of the side surface of the columnar second segment or does not heat the second segment.

10. The non-combustion heated flavor inhalation system according to any one of claims 1 to 8, wherein the heater includes a second peripheral heater that heats the entire side and bottom surfaces of the cylindrical first segment and heats a portion of the side surfaces of the cylindrical second segment or does not heat the second segment.

11. The non-combustion heated flavor inhalation system according to any one of claims 1 to 8, wherein the heater includes an internal heater that heats the inside of the columnar first segment over the entire axial direction and heats the inside of the columnar second segment over a portion of the axial direction or does not heat the second segment.

12. The non-combustion heated flavor inhalation system according to any one of claims 1 to 11, wherein the heating temperature by the heater is 200 to 350°C.

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