Non-combustion heating type flavor inhalation article and electric heating type flavor inhalation system

Abstract

To provide a non-combustion heating type flavor suction article that is reduced in spots generated in a wrapper encapsulating a tobacco filler.SOLUTION: A non-combustion heating type flavor suction article includes a tobacco part including: a tobacco filler including a tobacco filling material and a volatile perfume; and a wrapper encapsulating the tobacco filler. The wrapper includes: a base material sheet; and a non-metal coating layer provided on a surface abutting on the tobacco filler of the base material sheet, where an upper limit of diffusion coefficient is between 0.022 and 0.10 cm / s.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a non-combustion heating type flavor inhalation article that does not involve combustion, and an electrically heated flavor inhalation system. [Background technology]

[0002] In recent years, non-combustion heating type flavor inhalation articles that do not involve combustion have proven to be very useful from the standpoint of odor reduction and the like, and are rapidly gaining acceptance in the tobacco market. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2015-503336 Summary of the Invention

[0004] Of the tobacco part of a non-combustion heating-type flavor inhalation article, it is required to cover (blind) a second end face opposite to a first end face facing the filter part.

[0005] The present invention relates to A second end face of the tobacco part opposite to a first end face facing the filter part is covered (hidden). An object of the present invention is to provide a non-combustion heating type flavor inhalation article.

[0006] A non-combustion heating type flavor inhalation article according to one embodiment of the present invention includes a tobacco section filled with a tobacco filler, a filter section forming a mouthpiece, an additional segment provided adjacent to the tobacco section on the opposite side to the filter section, and a combination of the tobacco section and the filter section. And Concatenate Hollow The additional segment has a connecting portion and a ventilation hole portion having a plurality of through holes provided in the connecting portion and penetrating the connecting portion in a thickness direction. The additional segment is formed in a solid cylindrical shape filled with cellulose acetate fibers and has ventilation in an axial direction of the additional segment. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic cross-sectional view showing an electrically heated flavor inhalation system according to an embodiment. [Diagram 2] FIG. 2 is an enlarged schematic cross-sectional view of the rod of the electrically heated flavor inhalation system shown in FIG. [Diagram 3] 3 is a cross-sectional view showing a wrapper and a tobacco filler taken along line F3-F3 of the tobacco portion of the rod in FIG. 2. FIG. [Figure 4] FIG. 4 is a cross-sectional view showing one end and the other end of the wrapper along the line F4-F4 of the rod in FIG. 2, and the adhesive surface therebetween. [Diagram 5] FIG. 5 is a schematic cross-sectional view showing the process of inserting a rod into the main body of the electrically heated flavor inhalation system shown in FIG. [Figure 6] 6 is a cross-sectional view showing a first modified example of a wrapper and a tobacco filler taken along line F3-F3 of the tobacco portion of the rod in FIG. 2. FIG. [Figure 7] 7 is a cross-sectional view showing a second modified example of a wrapper and tobacco filler taken along line F3-F3 of the tobacco portion of the rod in FIG. [Figure 8] FIG. 8 is a schematic cross-sectional view showing a rod of the electrically heated flavor inhalation system of the second embodiment. [Figure 9] FIG. 9 is a diagram showing the measured values ​​of the examples and the comparative examples. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of an electrically heated flavor inhalation system will be described with reference to Figures 1 to 5. The drawings are schematic diagrams of the components of the invention. Therefore, the dimensions on the drawings do not necessarily correspond to the dimensions of the actual product.

[0009] [First embodiment] As shown in FIG. 1, the electrically heated flavor inhalation system 11 is a heating type that differs from traditional cigarettes in that it heats the tobacco filler 23 by electrical heating or the like without involving combustion, allowing the user to enjoy the tobacco flavor.

[0010] The electrically heated flavor inhalation system 11 has a main body 12 and a rod 14 (non-combustion heated flavor inhalation article) that is detachably attached to an insertion portion 13 of the main body 12.

[0011] The main body 12 has a box-shaped housing 15 and an insertion portion 13 that is cylindrically recessed along the shape of the rod 14. The main body 12 has a battery 16, a control circuit 17, a pressure sensing portion 20, a heat transfer portion 18 (heat transfer tube), and a heater 21 provided around the heat transfer portion 18 inside the housing 15. The housing 15 has an air vent 22 and a switch 29 for starting the main body 12. The air vent 22 communicates between the outside of the housing 15 and the insertion portion 13, and can supply air to the rod 14 inserted into the insertion portion 13.

[0012] The control circuit 17 can receive power from the battery 16. The control circuit 17 can adjust the temperature of the heater 21 within an appropriate range by applying electricity to the heater 21. The control circuit 17 controls the heater 21 to heat the inside of the rod 14 to, for example, 30°C to 400°C, preferably 100°C to 400°C, and more preferably 150°C to 250°C. The pressure-sensing unit 20 is composed of a pressure sensor (pressure-sensing sensor). The pressure-sensing unit 20 receives power from the control circuit 17. The pressure-sensing unit 20 can detect that the user has inhaled by sensing the negative pressure inside the insertion portion 13 (inside the ventilation hole 22).

[0013] The plug portion 13 is recessed cylindrically from the other portion of the housing 15 .

[0014] The heat transfer portion 18 has a hollow cylindrical shape. The heat transfer portion 18 is made of a metal material. The metal material constituting the heat transfer portion 18 is preferably a metal with a high thermal conductivity, such as gold, silver, copper, aluminum, or an alloy using these metals.

[0015] The heater 21 is made of a general electric heating wire such as a nichrome wire. The heater 21 is wound around the heat transfer section 18 and arranged in a cylindrical shape. The heating method of the heater 21 is not limited to one that uses Joule heat due to electrical resistance, and may be, for example, an IH (Induction Heating) method or a method that uses a chemical reaction such as oxidation heat. In that case, the material and shape of the heat transfer section may be selected according to the heating method. The heater 21 heats the rod 14 (non-combustion heated flavor inhalation article) from the outside, but may be formed in a blade shape that can be inserted inside the rod 14 (tobacco section 24) and heat the rod 14 from the inside.

[0016] (rod) The rod 14 (non-combustion heating type flavor inhalation article) shown in Fig. 2 is formed in a cylindrical shape. The circumferential length of the cylindrical rod 14 is, for example, preferably 16 mm to 27 mm, more preferably 20 mm to 26 mm, and even more preferably 21 mm to 25 mm. The total length (horizontal length) of the rod 14 is not particularly limited, but is, for example, preferably 40 mm to 90 mm, more preferably 50 mm to 75 mm, and even more preferably 50 mm to 60 mm.

[0017] The rod 14 has a tobacco section 24 filled with a tobacco filler 23, a filter section 26 constituting a mouthpiece 25, a connecting section 27 connecting the tobacco section 24 and the filter section 26, and an air vent section 28. The air vent section 28 has a plurality of through holes penetrating the connecting section 27 in the thickness direction. The plurality of through holes are formed so as to be radially arranged as viewed from an extension line of the central axis of the rod 14. In this embodiment, the air vent section 28 is provided in the connecting section 27. The air vent section 28 may be provided in the filter section 26. In this embodiment, the plurality of through holes of the air vent section 28 are arranged in a row at regular intervals on a circular ring. The number of through holes of the air vent section 28 is, for example, 124. The plurality of through holes of the air vent section 28 may be arranged in two rows at regular intervals on two circular rings. The multiple through holes of the ventilation hole section 28 may be provided discontinuously or irregularly arranged in one or two rows of the ventilation hole section 28. When a user holds the mouthpiece 25 to his / her mouth and inhales, outside air is taken into the mainstream smoke through the ventilation hole section 28.

[0018] The filter section 26 has a cylindrical shape. The filter section 26 has a rod-shaped first segment 31, which is filled with, for example, cellulose acetate fibers, and a rod-shaped second segment 32, which is filled with, for example, cellulose acetate fibers. The first segment 31 is located on the tobacco section 24 side. The first segment 31 may have a hollow portion. The second segment 32 is located on the mouthpiece 25 side. The second segment 32 is solid. Each of the first segment 31 and the second segment 32 is wrapped around the periphery by an inner plug wrapper 33. The first segment 31 and the second segment 32 are connected by an outer plug wrapper 34. The outer plug wrapper 34 is bonded to the first segment 31 and the second segment 32 by an adhesive composed of a vinyl acetate resin emulsion or the like.

[0019] The length of filter section 26 can be, for example, 10 mm to 30 mm, the length of cardboard tube 35 of connecting section 27 can be, for example, 10 mm to 30 mm, the length of first segment 31 can be, for example, 5 mm to 15 mm, and the length of second segment 32 can be, for example, 5 mm to 15 mm. These lengths of each segment are merely examples and can be changed as appropriate depending on manufacturing suitability, required quality, the length of tobacco section 24, etc.

[0020] For example, the first segment 31 (center hole segment) is composed of a first packed layer having one or more hollow parts, and an inner plug wrapper 33 that covers the first packed layer. The first segment 31 has a function of increasing the strength of the second segment 32. The first packed layer of the first segment 31 is packed with, for example, cellulose acetate fibers at a high density. A plasticizer containing triacetin is added to the cellulose acetate fibers in an amount of, for example, 6% by mass to 20% by mass relative to the mass of the cellulose acetate, and the fibers are hardened. The hollow part of the first segment 31 has an inner diameter of, for example, φ1.0 mm to φ5.0 mm.

[0021] The first packed layer of the first segment 31 may be, for example, configured with a relatively high fiber packing density, or may be equivalent to the fiber packing density of the second packed layer of the second segment 32 described later. Therefore, during suction, air and aerosol flow only through the hollow portion, and almost no air or aerosol flows through the first packed layer. For example, when it is desired to reduce the loss of aerosol components due to filtration in the second segment 32, the length of the second segment 32 can be shortened, and the first segment 31 can be lengthened accordingly.

[0022] Shortening the length of the second segment 32 and lengthening the first segment 31 by that amount is effective for increasing the amount of aerosol components delivered. Since the first packed layer of the first segment 31 is a fiber packed layer, the feel from the outside during use does not cause discomfort to the user.

[0023] The second segment 32 is composed of a second packed layer and an inner plug wrapper 33 that covers the second packed layer. The second segment 32 (filter segment) is packed with cellulose acetate fibers at a general density and has general filtering performance for filtering aerosol components.

[0024] The first segment 31 and the second segment 32 may have different filtering performance for filtering the aerosol (mainstream smoke) emitted from the tobacco section 24. At least one of the first segment 31 and the second segment 32 may contain a flavoring. The filter section 26 may have any structure, and may have a structure having multiple segments as described above, or may be composed of a single segment.

[0025] The connecting part 27 is cylindrical. The connecting part 27 has a cardboard tube 35 formed into a cylindrical shape using, for example, cardboard, and a lining paper 36 (paper) surrounding the cardboard tube 35. The lining paper 36 has an adhesive layer 37 formed on one surface (inner surface) thereof over the entire surface or almost the entire surface except for the vicinity of the ventilation hole portion 28. The adhesive layer 37 is made of a vinyl acetate resin emulsion or the like. The lining paper 36 is wound cylindrically around the outside of the tobacco part 24, the cardboard tube 35, and the filter part 26, and is adhered to them via the adhesive layer 37, so as to integrally connect and fix them. After the tobacco part 24, the cardboard tube 35, and the filter part 26 are integrated by the lining paper 36, the multiple ventilation hole portions 28 are formed by laser processing from the outside.

[0026] The tobacco portion 24 has a cylindrical shape. The total length (length in the axial direction) of the tobacco portion 24 is, for example, preferably 12 mm to 70 mm, more preferably 12 mm to 50 mm, and even more preferably 15 mm to 30 mm. The cross-sectional shape of the tobacco portion 24 is not particularly limited, and may be, for example, a circle, an ellipse, a polygon, or the like.

[0027] The tobacco section 24 has a tobacco filler material 23 and a tubular wrapper 41 that surrounds the tobacco filler material 23. The wrapper 41 is wound around the tobacco filler material 23 in a cylindrical shape.

[0028] (Rapper) As shown in FIG. 3, the wrapper 41 has a paper base sheet 42 (base sheet 1 (first sheet) in FIG. 7) and a nonmetallic coating layer 43 provided on one side of the base sheet 42. The coating layer 43 is formed by applying a resin or thickener, which is a coating agent, to the base sheet 42. The coating layer 43 is provided on the surface of the base sheet 42 that contacts the tobacco filler 23. Therefore, the coating layer 43 is disposed on the inner surface side of the wrapper 41 when the rod 14 (non-combustion heating type flavor inhalation article) is rolled up. The arrangement of the coating layer 43 is not limited to being disposed on the inner surface side of the wrapper 41. The coating layer 43 may be provided, for example, on the surface (outer surface side) of the base sheet 42 that does not contact the tobacco filler 23, or may be provided in pairs on both sides of the base sheet 42. The air permeability of the wrapper 41 is, for example, less than 5 Coresta units (CU), preferably less than 3 Coresta units, and more preferably less than 1 Coresta unit. The diffusion coefficient of the wrapper 41, when measured using CO2 or N2 as the gas and under measurement conditions of an environmental temperature of 22°C and an environmental relative humidity of 60%, is, for example, 0 cm / s to 0.1 cm / s, preferably 0 cm / s to 0.05 cm / s, and more preferably 0 cm / s to 0.022 cm / s. A Diffusivity Tester was used as a measuring device for the diffusion coefficient. For example, a Diffusivity Tester manufactured by Borgwaldt was used, and the measurement was performed according to the instructions issued by the company.

[0029] The base sheet 42 is made of commercially available paper. The basis weight of the base sheet 42 is, for example, 20 g / m 2 ~50g / m 2 and 25 g / m 2 ~45g / m 2and preferably 33 g / m 2 ~39g / m 2 It is more preferable that the opacity of the wrapper 41 is, for example, 72% to 100%. It is more preferable that the whiteness of the wrapper 41 is, for example, 70% to 100%.

[0030] The base sheet 42 may be composed of a commercially available nonwoven fabric.

[0031] The coating layer 43 contains a resin, a thickener, or a mixture thereof. A part of the resin, the thickener, or the mixture thereof contained in the coating layer 43 can penetrate into the micropores of the base sheet 42 and block the micropores, thereby making it possible to set the diffusion coefficient of the wrapper 41 within the range of 0 cm / s to 0.022 cm / s.

[0032] When the coating layer 43 is composed of a resin as a main component, the resin may be polyvinyl alcohol (PVA) or polyvinyl acetate (PVAc), or a composition (mixture) of these may be used. When the coating layer 43 is composed of a resin as a main component, the resin may be composed of a composition further containing a filler. The filler may be any one of calcium carbonate, aluminum hydroxide, aluminum oxide, titanium dioxide, kaolin, talc, and silica, or may be a mixture of several of these. By including a filler in the coating layer 43 in this way, there are advantages such as preventing blocking between the wrappers 41, preventing curling of the wrappers 41, and improving the whiteness / opacity of the wrappers 41.

[0033] When the coating layer 43 is composed of a thickener as a main component, the thickener may be any one of gum arabic, starch, sodium alginate, pectin, carboxymethylcellulose, methylcellulose, ethylcellulose, microcrystalline cellulose, or hydroxypropylmethylcellulose (HPMC), or may be a composition in which some of these are mixed. When the coating layer 43 is composed mainly of a thickener, the thickener may be composed of a composition further containing a filler. The filler may be any one of calcium carbonate, aluminum hydroxide, aluminum oxide, titanium dioxide, kaolin, talc, or silica, or may be a mixture of some of these. By including a filler in the coating layer 43 in this way, there are advantages such as preventing blocking (adhesion) between the wrappers 41, preventing curling of the wrappers 41, and improving the whiteness / opacity of the wrappers 41.

[0034] The coating layer 43 may be configured as a composition (mixture) containing both the above-mentioned resin and the above-mentioned thickener as main components. In that case, the coating layer 43 may be configured as a composition further containing a mixture of one or more of the above-mentioned fillers.

[0035] The amount of the coating agent that forms the coating layer 43 applied to the base sheet 42 varies depending on the type of coating agent. For example, when gum arabic is used as the coating agent, 1 m 2 The amount of coating per unit is very small, e.g. 0 g / m 2 Larger than 10g / m 2 When polyvinyl alcohol is used as the coating agent, it is preferable that the thickness is less than 1 m 2 The amount of coating per unit is very small, e.g. 0 g / m 2 Greater than 10.0 g / m 2 When polyvinyl acetate is used as the coating agent, it is preferable that the thickness is less than 1 m 2 The amount of coating per unit is very small, e.g. 0 g / m2 Greater than 10.0 g / m 2 The lower limit of the coating amount of each substance is preferably determined as required while measuring the diffusion coefficient.

[0036] As shown in FIG. 4, the wrapper 41 has one end 41A and the other end 41B provided on the opposite side of the one end 41A. In a state where the wrapper 41 is wrapped around the tobacco filler 23, the other end 41B is attached to the upper side of the one end 41A via an adhesive 45. Therefore, the one end 41A and the other end 41B are overlapped and bonded to each other to form an overlapping portion 44. The coating layer 43 in the portion corresponding to the other end 41B is subjected to a surface treatment for improving wettability. This surface treatment may be, for example, a corona treatment, a plasma treatment, or other surface modification treatment. By performing the surface treatment in this manner, the surface to which the surface treatment has been performed becomes an adhesive surface 47 between the one end 41A and the other end 41B, and the adhesion between them via the adhesive 45 is strengthened.

[0037] In this embodiment, the coating layer 43 in the portion corresponding to the other end 41B is subjected to a surface treatment for improving wettability. The coating layer 43 in both the one end 41A and the other end 41B may be subjected to a surface treatment for improving wettability. Alternatively, the following structure may be adopted as an alternative to this surface treatment. That is, a non-forming region 46 in which the coating layer 43 is not formed may be provided in a position corresponding to either one of the one end 41A and the other end 41B. In the example of FIG. 4, the non-forming region 46 is provided in a position corresponding to the other end 41B.

[0038] An adhesive 45 for bonding one end 41A and the other end 41B is applied to the surface to which the surface treatment has been applied or to the non-forming region 46. The adhesive 45 is, for example, made of a vinyl acetate resin emulsion. The surface to which the surface treatment has been applied or to the non-forming region 46, together with the adhesive 45, forms an adhesive surface 47 between one end 41A and the other end 41B.

[0039] A flavor component may be contained in the wrapper 41. Specifically, the base sheet 42 of the wrapper 41 may contain the flavor component, or the coating layer 43 of the wrapper 41 may contain the flavor component.

[0040] The tobacco filler 23 is composed of shredded leaf tobacco (dried leaves) and / or ground leaf tobacco molded into a sheet-like shape and shredded to a predetermined width (sheet-like molding). The tobacco filler 23 is formed by filling ground leaf tobacco molded into a sheet-like shape and shredded to a predetermined width (sheet-like molding) and / or shredded leaf tobacco (dried leaves) in a random orientation. This sheet-like molding may contain an aerosol-generating base material and a flavor component. An aerosol-generating base material and a flavor component may be added to or contained in the shredded leaf tobacco.

[0041] (Tobacco filler) The tobacco filler 23 according to the present invention includes a tobacco filler (tobacco) and an aerosol-generating base material. The tobacco filler 23 may further include a volatile flavoring, water, etc., which will be described later. There are no particular limitations on the size of the tobacco used as the tobacco filler and the method of preparation thereof. For example, dried tobacco leaves cut into a long and thin strip with a width of 0.8 mm to 1.2 mm can be used as the tobacco filler. When cut to the above width, the length of the cut of the tobacco leaves is approximately 1 mm to 40 mm. In addition, dried tobacco leaves may be crushed and homogenized to an average particle size of, for example, about 20 μm to 200 μm, processed into a sheet, and the sheet may be cut into a long and thin strip with a width of 0.8 mm to 1.2 mm (recycled tobacco sheet, sheet-shaped molded product) and used as the tobacco filler. When cut to the above width, the length of the cut is approximately, for example, about 1 mm to 40 mm. Furthermore, the above-mentioned sheet-processed product may be gathered and folded without being cut, and used as the tobacco filler. Whether dried tobacco leaves are shredded and used, or ground and used as a homogenized sheet, a variety of tobacco types can be used for the tobacco filler.

[0042] For the tobacco filler, flue-cured, burley, orient, native, and other Nicotiana tabacum, Nicotiana rustica, and Nicotiana tomentosa species can be appropriately blended to achieve the desired flavor. Details of the tobacco varieties are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0043] There are several conventional methods for grinding tobacco and processing it into homogenized sheets (recycled tobacco sheets). One is a paper-making sheet made using a papermaking process; the other is a cast sheet made by mixing tobacco powder with an appropriate solvent such as water and the necessary type / amount of binder, homogenizing the mixture, and then casting the homogenized mixture thinly on a metal plate or metal plate belt and drying it; and the third is a rolled sheet made by mixing tobacco powder with an appropriate solvent such as water and the necessary type / amount of binder, homogenizing the mixture, and extruding it into a sheet. Details of the types of homogenized sheets (recycled tobacco sheets) are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0044] In the tobacco filler 23, it is preferable that an aerosol-generating substrate and a volatile flavoring are applied to or contained in a sheet-shaped product of leaf tobacco (dried leaves) and ground leaf tobacco. It is preferable that the aerosol-generating substrate is contained in an amount of, for example, 5% by weight to 30% by weight of the leaf tobacco (dried leaves) and ground leaf tobacco formed into a sheet. The aerosol-generating substrate is a material capable of generating an aerosol when heated, and examples of such materials include glycerin, propylene glycol (PG), triethyl citrate (TEC), triacetin, and 1,3-butanediol. These may be used alone or in combination of two or more. It is preferable that the aerosol-generating substrate contains glycerin.

[0045] The filling density of the tobacco filler 23 is not particularly limited, but is usually 250 mg / cm from the viewpoint of ensuring the performance of the rod 14 (non-combustion heating type flavor inhalation article) and imparting a good smoking taste. 3 ~700mg / cm3 and preferably 320 mg / cm 3 ~420mg / cm 3 Specifically, the content of the tobacco filler 23 in the tobacco portion 24 may be in the range of 200 mg to 400 mg per tobacco portion 24, and is more preferably 250 mg to 320 mg, in the case of a tobacco portion 24 having a circumference of 22 mm and a length of 20 mm.

[0046] The volatile flavor (flavor component) contained in the tobacco filler 23 is not limited to any flavor that can be used in the electrically heated flavor inhalation system 11, and any flavor can be used. The flavor components include l-menthol, natural plant flavors (e.g., cinnamon, sage, herbs, chamomile, kudzu, sweet tea, cloves, lavender, cardamom, cloves, nutmeg, bergamot, geranium, honey essence, rose oil, lemon, orange, cinnamon bark, caraway, jasmine, ginger, coriander, vanilla extract, spearmint, peppermint, cassia, coffee, celery, cascarilla, sandalwood, cocoa, ylang-ylang, fennel, anise, licorice, St. John's bread, plum extract, peach extract, etc.), sugars (e.g., glucose, fructose, isomerized sugar, caramel, etc.), cocoas (powder, extract, etc.), esters (e.g., maltose ... For example, one selected from the group consisting of isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, etc., ketones (e.g., menthone, ionone, damascenone, ethyl maltol, etc.), alcohols (e.g., geraniol, linalool, anethole, eugenol, etc.), aldehydes (e.g., vanillin, benzaldehyde, anisaldehyde, etc.), lactones (e.g., γ-undecalactone, γ-nonalactone, etc.), animal flavors (e.g., musk, ambergris, civet, castoreum, etc.), hydrocarbons (e.g., limonene, pinene, etc.), and extracts of tobacco plants (tobacco leaves, tobacco stems, tobacco flowers, tobacco roots, and tobacco seeds) can be used. A particularly preferred volatile flavor contained in the tobacco filler 23 is l-menthol. Alternatively, the volatile flavoring contained in the tobacco filler 23 may be a mixture of two or more kinds selected from the above group.

[0047] The flavor components contained in the tobacco filler 23 may be used in a solid state, or may be dissolved or dispersed in an appropriate solvent, such as propylene glycol, ethyl alcohol, benzyl alcohol, or triethyl citrate. Preferably, flavors that are easily dispersed in a solvent by the addition of an emulsifier, such as hydrophobic flavors and oil-soluble flavors, can be used. These flavor components may be used alone or in combination.

[0048] There are no particular limitations on the amount of volatile flavoring contained in the tobacco filler 23. From the viewpoint of imparting a good smoking taste, the tobacco filler contains 0.5% to 10% by weight of volatile flavoring relative to the weight of the tobacco filler, preferably 1% to 9% by weight of volatile flavoring relative to the weight of the tobacco filler, and more preferably 1.2% to 8% by weight of volatile flavoring relative to the weight of the tobacco filler.

[0049] (Tobacco Part Manufacturing Method) Prior to the manufacture of the tobacco part 24, a coating agent is applied to the base sheet 42 to form the wrapper 41. The wrapper 41 is formed by applying a coating agent to one side of the base sheet 42 wound into a roll, the coating agent being to become the coating layer 43. Various coating methods can be used to apply the coating agent, for example, flexography, gravure, die coating, gate roll coating, or other coating methods.

[0050] In the wrapper 41 in which the coating layer 43 is formed on the surface of the base sheet 42, the coating layer 43 corresponding to at least one of the one end 41A and the other end 41B is preferably subjected to, for example, corona treatment, plasma treatment, or other surface treatment. In particular, in the example of Fig. 4 of this embodiment, the coating layer 43 corresponding to the other end 41B is preferably subjected to, for example, corona treatment, plasma treatment, or other surface treatment.

[0051] This improves the wettability (affinity) of at least one of the one end 41A and the other end 41B with respect to the adhesive 45. The adhesive 45 is applied to the surface thus surface-treated. Then, the one end 41A and the other end 41B are bonded together so that the wrapper 41 is wound around the tobacco filler 23 to form the cylindrical tobacco part 24. At this time, the surface thus surface-treated becomes the bonding surface 47 between the one end 41A and the other end 41B, improving the affinity of the adhesive 45 with the coating layer 43 and forming a strong bonded part.

[0052] Alternatively, instead of such a surface treatment process, a non-forming region 46 where the coating layer 43 is not formed may be provided on one of the end portions 41A and 41B of the wrapper 41. An adhesive 45 is applied to the non-forming region 46, and the end portion 41A and the end portion 41B are bonded together so that the wrapper 41 is wound around the tobacco filler 23 to form the cylindrical tobacco portion 24. At this time, the non-forming region 46 serves as a bonding surface 47 between the end portion 41A and the end portion 41B. In this way, the non-forming region 46 on the base sheet 42 serves as the bonding surface 47, and since the coating layer 43 is not present on the bonding surface 47, a strong bond is formed.

[0053] The wrapper 41 that has been subjected to the surface treatment or has the non-formed region 46 formed thereon is introduced into a general cigarette rolling machine and wound around the tobacco filler 23 to form an elongated cylindrical shape. At this time, the wrapper 41 is set in the cigarette rolling machine so that the coating layer 43 faces inward (the tobacco filler 23 side). The tobacco filler 23 and the wrapper 41 that have been formed into an elongated cylindrical shape are then cut to a predetermined length by a cutter or the like. In this way, the tobacco section 24 is formed. The tobacco section 24 is arranged in series with the paper tube 35 and the filter section 26 that are separately prepared. The tobacco section 24, the paper tube 35, and the filter section 26 are wound in series and integrally with the lining paper 36. Through the above steps, the rod 14 of the electrically heated flavor inhalation system 11 is manufactured.

[0054] The main body 12 of the electrically heated flavor inhalation system 11 can also be manufactured by a known method for manufacturing electronic devices. The electrically heated flavor inhalation system 11 is realized by combining the rod 14 and the main body 12 manufactured in this manner.

[0055] (Electrically heated flavor suction system) As shown in FIG. 5, the rod 14 is attached to the main body 12 by inserting the rod 14 into the insertion portion 13 of the main body 12. In this state, when the user presses down the switch 29 to activate the main body 12, the control circuit 17 drives the heater 21 and heats up the heater 21 and the heat transfer portion 18 to a predetermined temperature (for example, 30°C to 400°C). This heats the tobacco portion 24. In this state, when the user holds the mouthpiece 25 to his / her mouth and starts inhaling, vapor (aerosol) containing the flavor of the tobacco is released from the tobacco portion 24. The vapor is cooled by air flowing into the inside of the connecting portion 27 from the ventilation hole portion 28, and more reliable aerosolization (conversion to minute droplets) is achieved.

[0056] The aerosol is appropriately filtered by the filter unit 26 and delivered to the user's oral cavity. This allows the user to enjoy the flavor of tobacco. At this time, the control circuit 17 senses the negative pressure in the housing 15 via the pressure-sensing unit 20. This allows the control circuit 17 to count the number of times the user has inhaled and calculate the total inhalation time. The control circuit 17 stops heating the heater 21 and the heat transfer unit 18 when a predetermined time has passed since the switch 29 was pressed down, when the user has inhaled a predetermined number of times, when the total inhalation time of the user has exceeded a predetermined time, or when the user presses down the switch 29 again to cancel the activated state. This completes one flavor inhalation operation. Then, the user removes the used rod 14 from the insertion unit 13 and inserts a new rod 14 into the insertion unit 13, allowing the user to enjoy the flavor of tobacco from the new rod 14 again.

[0057] In the rod 14 (non-combustion heating type flavor inhalation article) of this embodiment, the diffusion coefficient of the wrapper 41 is suppressed to 0 cm / s to 0.022 cm / s by the coating layer 43. Therefore, the volatile flavor that volatilizes in the rod 14 during storage does not permeate the wrapper 41, and the volatile flavor does not form stains on the surface of the wrapper 41. In addition, even during storage at low temperature, the volatile flavor that volatilizes does not permeate the wrapper 41. Although the details of the mechanism of crystal formation by the volatile flavor (especially l-menthol) during low-temperature storage are unknown, it is considered that the volatile flavor that permeates the micropores of the wrapper 41 and adheres to the outer surface of the wrapper 41 becomes the nucleus of the crystal, and then the crystal grows to form hair-like (fibrous) crystals of the volatile flavor. In this embodiment, the volatile flavor is suppressed from permeating the wrapper 41. Therefore, it is considered that the initial volatile flavor that becomes the nucleus of the crystal is prevented from adhering to the outer surface of the wrapper 41. Therefore, in the rod 14 of this embodiment, not only is the occurrence of stains on the surface of the wrapper 41 prevented, but also the occurrence of fibrous crystals due to volatile flavoring on the surface of the wrapper 41 during low-temperature storage.

[0058] According to the first embodiment, the following can be said.

[0059] The non-combustion heating type flavor inhalation article comprises a tobacco section 24 having a tobacco filler 23 containing a tobacco filler and a volatile flavoring, and a wrapper 41 surrounding the tobacco filler 23, the wrapper 41 having a base sheet 42 and a non-metallic coating layer 43 provided on the surface of the base sheet 42 that contacts the tobacco filler 23, and the wrapper 41 has a diffusion coefficient of 0 cm / s to 0.022 cm / s.

[0060] According to this configuration, by providing the coating layer 43, the micropores in the base sheet 42 can be blocked until the diffusion coefficient reaches a level of 0 cm / s to 0.022 cm / s. This prevents the volatile flavor from permeating the wrapper 41. This prevents the volatile flavor in the tobacco filler 23 from staining the wrapper 41. In addition, when a non-combustion heating type flavor inhalation article is stored at a low temperature, the evaporated volatile flavor may cause fibrous crystals to form on the surface of the wrapper 41. The non-combustion heating type flavor inhalation article of this embodiment prevents such fibrous crystals from being formed by the volatile flavor. This allows a high-quality non-combustion heating type flavor inhalation article to be provided without causing a sense of incongruity to the user with respect to the appearance of the non-combustion heating type flavor inhalation article.

[0061] The coating layer 43 contains a resin, a thickener, or a mixture thereof. According to this configuration, the coating layer 43 can block the micropores in the base sheet .

[0062] The resin is polyvinyl alcohol or polyvinyl acetate. With this configuration, a wrapper 41 with a sufficiently reduced diffusion coefficient can be obtained with a small amount of coating on the base sheet .

[0063] The thickener is gum arabic, starch, sodium alginate, pectin, carboxymethylcellulose, or methylcellulose. According to this configuration, even by using various thickeners, it is possible to obtain a wrapper 41 with a sufficiently reduced diffusion coefficient.

[0064] The coating layer 43 further contains a filler. With this configuration, the coating layer 43 contains a fine particulate filler, so that the micropores in the base sheet 42 can be blocked more efficiently. In addition, the wrappers 41 before being rolled up can be prevented from sticking together during storage, that is, blocking, and the wrapper 41 can be effectively prevented from curling. Furthermore, the whiteness / opacity of the wrapper 41 can be improved.

[0065] The filler is calcium carbonate, aluminum hydroxide, aluminum oxide, titanium dioxide, microcrystalline cellulose, kaolin, talc, and silica. This configuration can prevent blocking between the wrappers 41 and effectively prevent curling of the wrapper 41. Furthermore, the whiteness / opacity of the wrapper 41 can be improved.

[0066] The volatile flavoring is l-menthol. L-menthol is prone to volatilization within the package during storage, and is prone to problems such as staining the wrapper 41 during storage and fibrous (needle-shaped) crystals forming on the wrapper 41 during storage at low temperatures. With the above configuration, even when the volatile flavoring is l-menthol, problems such as staining the wrapper 41 during storage and fibrous crystals forming on the wrapper 41 during storage at low temperatures can be prevented.

[0067] The tobacco filler 23 contains 1.2% by weight or more of the volatile flavoring relative to the weight of the tobacco filler. Usually, in tobacco filler 23 with such a high content of volatile flavoring, the volatile flavoring may soak into the wrapper 41 and cause stains or crystallize on the surface of the wrapper 41. With this configuration, even when using a tobacco filler 23 with a high content of volatile flavoring that is prone to staining or crystallization, it is possible to effectively prevent stains or crystallization from occurring in the wrapper 41.

[0068] The wrapper 41 has an air permeability of less than 1 Coresta unit. This configuration allows the wrapper 41 to have low air permeability, which further reduces the possibility of volatile flavors permeating the wrapper 41. This prevents problems such as staining of the wrapper 41 during storage and fibrous crystals during storage at low temperatures.

[0069] The base sheet 42 is paper and / or nonwoven fabric. With this configuration, the appearance of the wrapper 41 of the non-combustion heating-type flavor inhalation article can be made similar to that of a traditional cigarette, and it is possible to prevent the user from feeling uncomfortable.

[0070] In this case, the wrapper 41 has one end 41A and the other end 41B that is provided on the opposite side to the one end 41A and is bonded to the one end 41A. A surface treatment for improving wettability is applied to the coating layer 43 in a portion corresponding to at least one of the one end 41A and the other end 41B, and the surface that has been subjected to the surface treatment forms an adhesive surface 47 between the one end 41A and the other end 41B.

[0071] In addition, a manufacturing method for a non-combustion heating type flavor inhalation article includes applying a coating agent containing a resin or a thickener to a base sheet 42 to form a wrapper 41 having a coating layer 43, performing a surface treatment to improve wettability on at least one of one end 41A of the wrapper 41 and the other end 41B that is located opposite the one end 41A and is bonded to the one end 41A, and bonding the one end 41A and the other end 41B at bonding surface 47 so that the surface-treated surface serves as bonding surface 47, thereby surrounding the tobacco filler 23 containing a volatile flavor with the wrapper 41.

[0072] These configurations can prevent a decrease in adhesive strength at the adhesive portion of the wrapper 41 due to the provision of the coating layer 43. This can prevent problems such as poor adhesion at the overlapping portion of the wrapper 41 from occurring.

[0073] In this case, the wrapper 41 has one end 41A and the other end 41B that is provided on the opposite side to the one end 41A and is bonded to the one end 41A. A non-formation region 46 where the coating layer 43 is not formed is provided in a portion corresponding to either the one end 41A or the other end 41B. The non-formation region 46 forms an adhesive surface 47 between the one end 41A and the other end 41B.

[0074] According to this configuration, it is possible to avoid providing coating layer 43 on the portion that will become adhesive surface 47. This makes it possible to prevent a decrease in adhesive strength at the overlapping portion of wrapper 41 that would be caused by providing coating layer 43. Furthermore, by leaving coating layer 43 on either one of end portion 41A and other end portion 41B, it is possible to maintain the diffusion coefficient of the wrapper within the range of 0 cm / s to 0.022 cm / s.

[0075] The electrically heated flavor inhalation system 11 includes a non-combustion heating type flavor inhalation article and a heater 21 for heating the non-combustion heating type flavor inhalation article. This configuration makes it possible to realize an electrically heated flavor inhalation system 11 that prevents the volatile flavor from staining the wrapper 41 and from forming fibrous (needle-like) crystals during low-temperature storage.

[0076] The heater 21 heats the non-combustion heating type flavor inhalation article at 30°C to 400°C. In conventional traditional cigarettes, the heating temperature of the tobacco filler 23 is as high as 700°C to 900°C because of the combustion involved. According to the above configuration, since the heating temperature of the tobacco portion 24 is significantly lower than that of traditional cigarettes, it is necessary to increase the amount of volatile flavor contained in the tobacco filler 23 so that the user can feel the same strength of volatile flavor in the aerosol. If the amount of volatile flavor is increased in this way, there is a problem that the volatile flavor is likely to stain the wrapper 41 or that fibrous crystals are likely to form from the wrapper 41 during low-temperature storage. According to the present embodiment, even if the amount of volatile flavor is increased in this way, it is possible to effectively prevent stains from forming on the wrapper 41 or fibrous crystals from forming on the wrapper 41. This makes it possible to realize a high-quality non-combustion heating type flavor inhalation article and an electric heating type flavor inhalation system 11 including the same.

[0077] [First Modification] As shown in Fig. 6, the wrapper 41 may be formed only of a paper base sheet 42 (base sheet 1 in Fig. 9). For example, glassine paper is used as the paper base sheet 42. Glassine paper can suppress micropores in the base sheet 42 and reduce the diffusion coefficient. For this reason, the coating layer 43 is not necessarily required.

[0078] Note that, if it is possible to suppress micropores in the base sheet 42 and reduce the diffusion coefficient, a base sheet 42 made of nonwoven fabric may be used instead of the base sheet 42 made of paper such as glassine paper.

[0079] According to the first modification of the first embodiment, the following can be said.

[0080] The non-combustion heating type flavor inhalation article includes a tobacco section 24 having a tobacco filler 23 containing a tobacco filler and a volatile flavoring, and a wrapper 41 surrounding the tobacco filler 23, the wrapper 41 having a base sheet 42 made of paper or nonwoven fabric, and the diffusion coefficient of the wrapper 41 is 0 cm / s to 0.006 cm / s.

[0081] According to this configuration, by appropriately selecting the base sheet 42, i.e., the wrapper 41, it is possible to prevent the volatile flavor from permeating the wrapper 41. This makes it possible to prevent the volatile flavor in the tobacco filler 23 from forming stains on the wrapper 41. Furthermore, when a non-combustion heating type flavor inhalation article is stored at low temperature, the evaporated volatile flavor may cause fibrous crystals to form on the surface of the wrapper 41. The non-combustion heating type flavor inhalation article of this embodiment prevents such fibrous crystals from being formed by the volatile flavor. This makes it possible to provide a high-quality non-combustion heating type flavor inhalation article without causing a sense of incongruity to the user with respect to the appearance of the non-combustion heating type flavor inhalation article.

[0082] [Second modified example] As shown in FIG. 7, the wrapper 41 preferably has, in addition to a paper base sheet 42 (base sheet 1 (first sheet) in FIG. 9) and a coating layer 43, a second base sheet 42A (base sheet 2 (second sheet) in FIG. 9) made of the same or different material as the base sheet 42 and located inside the coating layer 43. That is, the coating layer 43 is sandwiched between the base sheet 42 and the base sheet 42A. The wrapper 41 has a three-layer structure, and the diffusion coefficient can be reduced by suppressing micropores in the base sheet 42.

[0083] Note that, if it is possible to suppress micropores in the base sheet 42 and reduce the diffusion coefficient, a nonwoven fabric base sheet 42 may be used instead of the paper base sheet 42. Similarly, if it is possible to suppress micropores in the base sheet 42A and reduce the diffusion coefficient, a nonwoven fabric base sheet 42A may be used instead of the paper base sheet 42A.

[0084] According to the second modification of the first embodiment, the following can be said.

[0085] The non-combustion heating type flavor inhalation article includes a tobacco section 24 having a tobacco filler 23 containing a tobacco filler and a volatile flavoring, and a wrapper 41 surrounding the tobacco filler 23, and the wrapper 41 has a plurality of base sheets 42, 42A made of paper or nonwoven fabric and a coating layer 43 formed between the base sheets 42, 42A, and the wrapper 41 has a diffusion coefficient of 0.001 cm / s to 0.015 cm / s.

[0086] According to this configuration, by appropriately selecting the material forming the base sheet 42, 42A and the coating layer 43, i.e., the wrapper 41, it is possible to prevent the volatile flavor from permeating the wrapper 41. This makes it possible to prevent the volatile flavor in the tobacco filler 23 from staining the wrapper 41. In addition, when a non-combustion heating type flavor inhalation article is stored at low temperature, the evaporated volatile flavor may cause fibrous crystals to form on the surface of the wrapper 41. According to the non-combustion heating type flavor inhalation article of this embodiment, the generation of such fibrous crystals due to the volatile flavor is prevented. This makes it possible to provide a high-quality non-combustion heating type flavor inhalation article without causing a sense of incongruity to the user with respect to the appearance of the non-combustion heating type flavor inhalation article.

[0087] [Second embodiment] A second embodiment of an electrically heated flavor inhalation system 11 and a non-combustion heated flavor inhalation article (rod 14) included therein will be described with reference to Fig. 8. In this embodiment, the shape of the rod 14 is different, but other parts are common to the first embodiment. Below, the rod 14, which is a part different from the first embodiment, will be mainly described, and illustrations and descriptions of parts common to the first embodiment will be omitted.

[0088] The rod 14 has a tobacco section 24 filled with tobacco filler 23, a filter section 26 constituting a mouthpiece 25, a connecting section 27 connecting the tobacco section 24 and the filter section 26, an additional segment 51 (second filter section) provided adjacent to the tobacco section 24, and an air vent section 28. The tobacco section 24, the filter section 26, and the air vent section 28 have the same configurations as in the first embodiment. It is preferable that the wrapper 41 of the tobacco section 24 has the same configuration as in the first embodiment, as well as the first and second modified examples.

[0089] The additional segment 51 (second filter section) is formed in a cylindrical shape and is provided so as to cover (conceal) a second end face 24B opposite to a first end face 24A of the tobacco section 24 that faces the filter section 26. More specifically, the additional segment 51 is provided adjacent to the tobacco section 24 so as to cover and conceal the second end face 24B of the tobacco section 24. The additional segment 51 is breathable, and has particularly high breathability in the axial direction of the cylinder.

[0090] In this embodiment, the additional segment 51 is a rod-shaped filter filled with cellulose acetate fibers. The additional segment 51 is configured as a center hole segment having a hollow portion 51A at the center, similar to the first segment 31 of the filter section 26 of the first embodiment, but the embodiment of the additional segment 51 is not limited to this. The additional segment 51 may be configured as a solid filter without a center hole, similar to the second segment 32 of the filter section 26, or may be configured as an annular protruding portion (in this case, the inside of the protruding portion is formed as a cavity) in which the lining paper 36 of the connecting portion 27 protrudes toward the tip side (opposite the mouthpiece 25) beyond the tobacco section 24 (tobacco filler 23).

[0091] The connecting portion 27 has a cardboard tube 35 formed into a cylindrical shape using, for example, cardboard, and a lining paper 36 surrounding the periphery of the cardboard tube 35. An adhesive consisting of a vinyl acetate resin emulsion or the like is applied to the entire or nearly entire surface of one side (inner surface) of the lining paper 36 except for the vicinity of the ventilation hole portion 28. The lining paper 36 is wrapped around the outside of the additional segment 51, the tobacco portion 24, the cardboard tube 35, and the filter portion 26 in a cylindrical shape, and integrally connects these together. After the tobacco portion 24, the cardboard tube 35, and the filter portion 26 are integrated by the lining paper 36, the multiple ventilation hole portion 28 is formed by laser processing from the outside.

[0092] The means for connecting the additional segment 51 to the tobacco section 24 is not limited to the lining paper 36. Naturally, the additional segment 51 and the tobacco section 24 may be connected by a wrapping paper provided separately from the lining paper 36.

[0093] The action of the rod 14 (non-combustion heating type flavor inhalation article) of this embodiment will be described. The rod 14 of this embodiment has an additional segment 51 for screening, located closer to the tip than the tobacco section 24. This makes it possible to prevent hair-like (fibrous, needle-like) crystals of the volatile flavoring (especially l-menthol) from forming in the exposed portion of the tobacco filler 23 of the tobacco section 24 during storage at low temperatures.

[0094] When the additional segment 51 is configured as a center hole segment having a hollow portion 51A at the center or an annular protruding portion formed by the lining paper 36, crystals of the volatile flavoring that grow from the portion where the tobacco filler 23 is exposed during low-temperature storage will form in the hollow portion 51A of the additional segment 51 or inside the protruding portion. However, if they are in the hollow portion 51A or the protruding portion, the user cannot see them from the outside, and the fibrous (needle-shaped) crystals will decompose within a short period of time while the rod is being returned to room temperature, so there is essentially no problem. Furthermore, by configuring the additional segment 51 as a center hole segment or a protruding portion, it is possible to prevent the air flow resistance from increasing as much as possible, and it is possible to prevent the additional segment 51 from being a constraint on the design of the rod 14.

[0095] According to this embodiment, the following can be said.

[0096] The non-combustion heating type flavor inhalation article includes a filter section 26 provided adjacent to the tobacco section 24, and an additional segment 51 having breathability and provided to cover a second end face 24B opposite to a first end face 24A of the tobacco section 24 that faces the filter section 26. With this configuration, even if fibrous crystals due to a volatile flavor are generated from the tobacco filler 23 located on the second end face 24B during low-temperature storage, the crystals can be covered and hidden by the additional segment 51. This prevents the crystals from being visually recognized by the user, which may lead to a mistaken belief that fibers or the like are mixed in the product.

[0097] The non-combustion heating type flavor inhalation article and the electrically heated type flavor inhalation system 11 are not limited to those described in the above embodiment and each modified example, and in the implementation stage, the components can be modified without departing from the gist of the invention. Also, some components may be deleted from all the components shown in the embodiment. EXAMPLES

[0098] Hereinafter, Examples 1 to 8 and Comparative Examples 1 to 6 in which the rods 14 were formed by changing the type of wrapper 41 will be described according to the table shown in Fig. 9. Prior to the description of each Example and Comparative Example, a method for measuring the diffusion coefficient, a method for evaluating the stain occurrence rate, and a method for evaluating the occurrence of crystallization will be described.

[0099] <Method of measuring diffusion coefficient> The diffusion coefficient was measured using a Diffusivity Tester manufactured by Borgwaldt under the measurement conditions of 22°C and 60% relative humidity, using N2 and CO2 as gases. Other measurement conditions were in accordance with the instructions issued by the company.

[0100] <Method for evaluating stain occurrence rate and stain suppression effect> For the evaluation, a tobacco rod (long tobacco rod for cigarettes) with a circumference of 22 mm and a length of 56 mm was used. For the tobacco rod used for the evaluation, a tobacco filler 23 containing 6% by weight of l-menthol (volatile flavoring) relative to the weight of the tobacco filler was used. A finished tobacco rod using this tobacco filler 23 was left at rest in an airtight (gas barrier) sealed container at room temperature for 14 days, and the number of stains that occurred was evaluated. A tobacco rod with 5 or more stains with a maximum diameter of 1 mm or more, or with 1 or more stains with a maximum diameter of 3 mm or more, was defined as a rod with stains.

[0101] The stain occurrence rate was calculated as follows. 200 tobacco rods constructed as described above were prepared, and after storing them under the above conditions for 14 days, they were observed and the number of rods with stains was counted. The ratio of the number of rods with stains to the total number (200) was taken as the stain occurrence rate (%).

[0102] A stain occurrence rate of less than 35% was defined as having a stain suppression effect (good), and a stain occurrence rate of 35% or more was defined as not having a stain suppression effect (poor).

[0103] <Method for evaluating crystal formation> The tobacco rod used in the evaluation was the same as the tobacco rod (long tobacco rod for cigarettes) used in the evaluation of the stain occurrence rate and stain suppression effect described above. For the tobacco rod used in the evaluation, a tobacco filler 23 containing 6% by weight of l-menthol (volatile flavoring) relative to the weight of the tobacco filler was used. A finished tobacco rod using this tobacco filler 23 was left to stand in an airtight (gas barrier) sealed container in a refrigerator at 4°C for 14 days. After storage, the presence or absence of fibrous (needle-shaped) crystals of l-menthol was evaluated. Those without fibrous crystals on the surface of the wrapper 41 were marked as effective (good), and those with fibrous crystals on the surface of the wrapper 41 were marked as ineffective (bad).

[0104] [Example 1] A typical tipping paper base paper (TP base paper) that is also used for traditional cigarettes was used as the base sheet 42. This TP base paper is commercially available from paper manufacturers. The basis weight of this base sheet 42 is 36 g / m 2 It was.

[0105] Gum arabic, which is a thickening agent, was used as the coating material used in the coating layer 43 of the wrapper 41. This gum arabic was applied to one side of the base sheet 42 using a flexo coater to form the wrapper 41. The amount of gum arabic applied (coating amount) to the base sheet 42 was 7.3 g / m 2 It was decided.

[0106] The total weight of this wrapper 41 is 43 g / m 2 The opacity of the wrapper 41 including the base sheet 42 and the coating layer 43 was 81%. The whiteness of the wrapper 41 was 88%.

[0107] The diffusion coefficient of the wrapper 41 was 0.002 cm / s. The air permeability of the wrapper 41 was less than 1 Coresta unit. The stain occurrence rate was 27.5%, and the stain suppression effect was rated "good". The crystallization suppression effect was rated "good".

[0108] [Example 2] A typical tipping paper base paper (TP base paper) that is also used for traditional cigarettes was used as the base sheet 42. The basis weight of this base sheet 42 was 36 g / m 2 It was.

[0109] Polyvinyl alcohol (PVA), which is a resin, was used as the coating material for the coating layer 43 of the wrapper 41. The polyvinyl alcohol was applied to one side of the base sheet 42 using a flexo coater to form the wrapper 41. The amount of polyvinyl alcohol applied (coating amount) to the base sheet 42 was 3.8 g / m 2 It was decided.

[0110] The total weight of this wrapper 41 is 40 g / m2 The opacity of the wrapper 41 including the base sheet 42 and the coating layer 43 was 80%. The whiteness of the wrapper 41 was 88%.

[0111] The diffusion coefficient of the wrapper 41 was 0.000 cm / s. The air permeability of the wrapper 41 was less than 1 Coresta unit. The stain occurrence rate was 0%, and the stain suppression effect was evaluated as "good". The crystallization suppression effect was evaluated as "good".

[0112] [Example 3] A typical tipping paper base paper (TP base paper) that is also used for traditional cigarettes was used as the base sheet 42. The basis weight of this base sheet 42 was 36 g / m 2 It was.

[0113] The coating material used for the coating layer 43 of the wrapper 41 was a resin, ethylene-vinyl acetate copolymer (EVA). The ethylene-vinyl acetate copolymer was applied to one side of the base sheet using a coater to form the wrapper 41. The amount of ethylene-vinyl acetate copolymer applied to the base sheet 42 (coating amount) was 4.5 g / m 2 It was decided.

[0114] The total weight of this wrapper 41 is 41g / m 2 The opacity of the wrapper 41 including the base sheet 42 and the coating layer 43 was 81%. The whiteness of the wrapper 41 was 89%.

[0115] The diffusion coefficient of the wrapper 41 was 0.022 cm / s. The air permeability of the wrapper 41 was less than 1 Coresta unit. The stain occurrence rate was 1.5%, and the stain suppression effect was rated "good". The crystallization suppression effect was rated "good".

[0116] [Example 4] Glassine paper was used as the base sheet 42. The basis weight of this base sheet 42 was 35 g / m 2 It was.

[0117] The wrapper 41 does not have a coating layer 43 and does not use any coating material. The total basis weight of the wrapper 41, i.e., the total basis weight of the base sheet 42, is 35 g / m, which is the same as the basis weight of glassine paper. 2 The opacity of the wrapper 41, i.e., the opacity of the base sheet 42, was 14%. The whiteness of the wrapper 41, i.e., the whiteness of the base sheet 42, was 74%.

[0118] The diffusion coefficient of the wrapper 41, i.e., the diffusion coefficient of the base sheet 42, was 0.006 cm / s. The air permeability of the wrapper 41, i.e., the air permeability of the base sheet 42, was 0.7 Coresta units, which was less than 1 Coresta unit. The stain occurrence rate was 0%, and the stain suppression effect was evaluated as "good". The crystallization suppression effect was evaluated as "good".

[0119] [Example 5] The base sheet 42 has a first base sheet 42 on the outside and a second base sheet 42A on the inside. A coating layer 43 is provided on one side of the second base sheet 42A. TP base paper was used as the first base sheet 42. The basis weight of this base sheet 42 is 37 g / m 2 The second base sheet 42A was made of a nonwoven fabric called P10000C. The basis weight of this base sheet 42A was 24 g / m 2 It was.

[0120] Polyvinyl acetate (PVAc), which is a resin, was used as the coating material used in the coating layer 43 of the wrapper 41. This polyvinyl acetate was applied to one side of the base sheet 42 or base sheet 42A using a coater, and the base sheet 42A or base sheet 42 was placed on this polyvinyl acetate to form the wrapper 41. The amount of polyvinyl acetate applied (coating amount) to the base sheet 42 or base sheet 42A was 1.1 g / m 2 It was decided.

[0121] The total weight of this wrapper 41 is 62 g / m 2The opacity of the wrapper 41 was 80%. The whiteness of the wrapper 41 was 86%.

[0122] The diffusion coefficient of the wrapper 41 was 0.015 cm / s. The air permeability of the wrapper 41 was 2.3 Coresta units. The stain occurrence rate was 0%, and the stain suppression effect was evaluated as "good". The crystallization suppression effect was evaluated as "good".

[0123] [Example 6] The base sheet 42 has a first base sheet 42 on the outside and a second base sheet 42A on the inside. A coating layer 43 is provided on one side of the second base sheet 42A. TP base paper was used as the first base sheet 42. The basis weight of this base sheet 42 is 37 g / m 2 The second base sheet 42A was made of glassine paper. The basis weight of the base sheet 42A was 25 g / m 2 It was.

[0124] Polyvinyl acetate (PVAc), a resin, was used as the coating material for the coating layer 43 of the wrapper 41. This polyvinyl acetate was applied to one side of the base sheet 42 or base sheet 42A using a coater, and the base sheet 42A or base sheet 42 was placed on this polyvinyl acetate to form the wrapper 41. The amount of polyvinyl acetate applied (coating amount) to the base sheet 42 or base sheet 42A was 1.9 g / m 2 It was decided.

[0125] The total weight of this wrapper 41 is 64 g / m 2 The opacity of the wrapper 41 was 81%. The whiteness of the wrapper 41 was 86%.

[0126] The diffusion coefficient of the wrapper 41 was 0.001 cm / s. The air permeability of the wrapper 41 was 0.7 Coresta units. The stain occurrence rate was 0%, and the stain suppression effect was evaluated as "good". The crystallization suppression effect was evaluated as "good".

[0127] [Example 7] The base sheet 42 has an outer first base sheet 42 and an inner second base sheet 42A. One surface of the second base sheet 42A is provided with a coating layer 43. As the first base sheet 42, paper (product name: NPNP1) was used, which is used in traditional cigarettes as wrapping paper for rolling up the tobacco filler 23 into a cylindrical shape and as a wrapper for rolling up a filter into a cylindrical shape. NPNP1 is commercially available from paper manufacturers. The basis weight of this base sheet 42 is 35 g / m 2 The second base sheet 42A was made of glassine paper. The basis weight of the base sheet 42A was 25 g / m 2 It was.

[0128] Polyvinyl acetate (PVAc), a resin, was used as the coating material for the coating layer 43 of the wrapper 41. This polyvinyl acetate was applied to one side of the base sheet 42 or base sheet 42A using a coater, and the base sheet 42A or base sheet 42 was placed on this polyvinyl acetate to form the wrapper 41. The amount of polyvinyl acetate applied (coating amount) to the base sheet 42 or base sheet 42A was 1.8 g / m 2 It was decided.

[0129] The total weight of this wrapper 41 is 62 g / m 2 The opacity of wrapper 41 was 78%. The whiteness of wrapper 41 was 89%.

[0130] The diffusion coefficient of the wrapper 41 was 0.003 cm / s. The air permeability of the wrapper 41 was 1.5 Coresta units. The stain occurrence rate was 0%, and the stain suppression effect was evaluated as "good". The crystallization suppression effect was evaluated as "good".

[0131] [Example 8] The base sheet 42 has a first base sheet 42 on the outside and a second base sheet 42A on the inside. A coating layer 43 is provided on one side of the second base sheet 42A. TP base paper was used as the first base sheet 42. The basis weight of this base sheet 42 is 37 g / m2 The second base sheet 42A was made of TP base paper. The basis weight of this base sheet 42A was 37 g / m 2 It was.

[0132] Polyvinyl acetate (PVAc), which is a resin, was used as the coating material used for the coating layer 43 of the wrapper 41. This polyvinyl acetate was applied to one side of the base sheet 42 or base sheet 42A using a coater, and the base sheet 42A or base sheet 42 was placed on this polyvinyl acetate to form the wrapper 41. The amount of polyvinyl acetate applied (coating amount) to the base sheet 42 or base sheet 42A was 1.5 g / m 2 It was decided.

[0133] The total weight of this wrapper 41 is 76 g / m 2 The opacity of the wrapper 41 was 87%. The whiteness of the wrapper 41 was 88%.

[0134] The diffusion coefficient of the wrapper 41 was 0.009 cm / s. The air permeability of the wrapper 41 was 1.0 Coresta unit. The stain occurrence rate was 0%, and the stain suppression effect was evaluated as "good". The crystallization suppression effect was evaluated as "good".

[0135] [Comparative Example 1] The base sheet 42 used was a paper (product name: NPNP1) that is used in traditional cigarettes as a wrapping paper for rolling up the tobacco filler 23 into a cylindrical shape and as a wrapper for rolling up the filter into a cylindrical shape. NPNP1 is commercially available from paper manufacturers. The basis weight of this base sheet 42 was 35 g / m 2 No resin or thickener was applied to this base sheet 42, and the wrapper 41 of Comparative Example 1 did not have a coating layer 43. The opacity of this wrapper 41 (base sheet 42) was 83%. The whiteness of the wrapper 41 was 94%.

[0136] The diffusion coefficient of the wrapper 41 was 1.009 cm / s. The air permeability of the wrapper 41 was 15 Coresta units. The stain occurrence rate was 100%, and the stain suppression effect was none, rated "x". The crystallization suppression effect was none, rated "x".

[0137] [Comparative Example 2] A typical tipping paper base paper (TP base paper) that is also used for traditional cigarettes was used as the base sheet 42. The basis weight of this base sheet 42 was 36 g / m 2 No resin or thickener was applied to this base sheet 42, and the wrapper 41 of Comparative Example 2 did not have a coating layer 43. The opacity of this wrapper 41 (base sheet 42) was 79%. The whiteness of the wrapper 41 was 88%.

[0138] The diffusion coefficient of the wrapper 41 was 0.101 cm / s. The air permeability of the wrapper 41 was less than 1 Coresta unit. The stain occurrence rate was 100%, and the stain suppression effect was none, rated "x". The crystallization suppression effect was none, rated "x".

[0139] [Comparative Example 3] Paper (product name: NPNP1) was used as the base sheet 42. The basis weight of this base sheet 42 was 35 g / m 2 The coating material used for the coating layer 43 of the wrapper 41 was polyvinyl alcohol (PVA), which is a resin. The polyvinyl alcohol was applied to one side of the base sheet 42 using a die coater to form the wrapper 41. The coating amount (coating weight) of the polyvinyl alcohol on the base sheet 42 was 1.2 g / m 2 The opacity of the wrapper 41 was 83%. The whiteness of the wrapper 41 was 94%.

[0140] The diffusion coefficient of the wrapper 41 was 0.599 cm / s. The air permeability of the wrapper 41 was 8.5 Coresta units. The stain occurrence rate was 100%, and the stain suppression effect was none, rated "x". The crystallization suppression effect was none, rated "x".

[0141] [Comparative Example 4] Paper (product name: NPNP1) was used as the base sheet 42. The basis weight of this base sheet 42 was 35 g / m 2 The coating material used in the coating layer 43 of the wrapper 41 was pectin, which is a thickener. The pectin was applied to one side of the base sheet 42 using a gravure coater to form the wrapper 41. The amount of pectin applied (coating amount) to the base sheet 42 was 0.7 g / m 2 The opacity of the wrapper 41 was 82%. The whiteness of the wrapper 41 was 93%.

[0142] The diffusion coefficient of the wrapper 41 was 0.358 cm / s. The air permeability of the wrapper 41 was 4.8 Coresta units. The stain occurrence rate was 100%, and the stain suppression effect was none, rated "x". The crystallization suppression effect was none, rated "x".

[0143] [Comparative Example 5] A paper called FXASNP was used as the base sheet 42. FXASNP is a paper made from fibrillated wood pulp. The basis weight of this base sheet 42 is 36 g / m 2 The coating material used in the coating layer 43 of the wrapper 41 was pectin, which is a thickener. The pectin was applied to one side of the base sheet 42 using a gravure coater to form the wrapper 41. The amount of pectin applied (coating amount) to the base sheet 42 was 0.2 g / m 2 The opacity of the wrapper 41 was 75%. The whiteness of the wrapper 41 was 86%.

[0144] The diffusion coefficient of the wrapper 41 was 1.352 cm / s. The air permeability of the wrapper 41 was 12.6 Coresta units. The stain occurrence rate was 100%, and the stain suppression effect was none, rated "x". The crystallization suppression effect was none, rated "x".

[0145] [Comparative Example 6] The base sheet 42 has a first base sheet 42 on the outside and a second base sheet 42A on the inside. One surface of the second base sheet 42A is provided with a coating layer 43. A paper called NPNP1 was used as the first base sheet 42. The basis weight of this base sheet 42 is 35 g / m 2 The second base sheet 42A was made of P10000C. The basis weight of the base sheet 42A was 24 g / m 2 It was.

[0146] Polyvinyl acetate (PVAc), a resin, was used as the coating material for the coating layer 43 of the wrapper 41. This polyvinyl acetate was applied to one side of the base sheet 42 or base sheet 42A using a coater, and the base sheet 42A or base sheet 42 was placed on this polyvinyl acetate to form the wrapper 41. The amount of polyvinyl acetate applied (coating amount) to the base sheet 42 or base sheet 42A was 1.8 g / m 2 It was decided.

[0147] The total weight of this wrapper 41 is 61 g / m 2 The opacity of wrapper 41 was 83%. The whiteness of wrapper 41 was 88%.

[0148] The diffusion coefficient of the wrapper 41 was 0.245 cm / s. The air permeability of the wrapper 41 was 5.7 Coresta units. The stain occurrence rate was 0%, and the stain suppression effect was evaluated as "good". The crystallization suppression effect was evaluated as "bad".

[0149] [Consideration] Considering the above-described Examples 1 to 8 and Comparative Examples 1 to 6, the following can be said.

[0150] The diffusion coefficient of the wrapper 41 of Comparative Example 1 is 1 cm / s or more, which is higher than that of the examples of Examples 1-8. The diffusion coefficient of the wrapper 41 of Comparative Example 2 is 0.101 cm / s, which is higher than that of the examples of Examples 1-8. The diffusion coefficient of the wrapper 41 of Comparative Example 3-6 is 0.245 cm / s or more, which is higher than that of the examples of Examples 1-8. The lower limit of the diffusion coefficient of Comparative Example 1-6 is 0.101 cm / s of Comparative Example 2. Therefore, it is recognized that in order to have a stain suppression effect and a crystallization suppression effect, the diffusion coefficient of the wrapper 41 needs to be at least less than 0.101 cm / s. In particular, the wrapper 41 with a diffusion coefficient of 0 cm / s to 0.022 cm / s as in Example 1-8 is recognized as an example having a stain suppression effect and a crystallization suppression effect. It can be said that the upper limit of the diffusion coefficient of the wrapper 41 is between 0.022 cm / s and 0.101 cm / s. From the above, it is recognized that the diffusion coefficient of the wrapper 41 greatly contributes to the stain suppression effect and crystallization suppression effect. It was found that the diffusion coefficient of the wrapper 41 is 0 cm / s or more, and the upper limit of the diffusion coefficient is between 0.022 cm / s and 0.10 cm / s.

[0151] The air permeability of Examples 1-8 was 1 Coresta unit or less in 6 / 8 of the Examples, with the highest value being 2.3 Coresta units in Example 5. The air permeability of Comparative Examples 1-6 was less than 1 Coresta unit only in Comparative Example 2, but 5 / 6 of the Comparative Examples were 4.8 Coresta units or more. Therefore, it can be said that the air permeability of Examples 1-8 is lower than that of the Comparative Examples. That is, although there is a relationship with the diffusion coefficient, it is presumed that the air permeability is preferably, for example, 1 Coresta unit or less.

[0152] Although the coating layer 43 is not necessarily required, it was found that the material of the coating layer 43 does not matter as long as the coating layer 43 is a non-metallic resin (polyvinyl alcohol, polyvinyl acetate) or a thickener (gum arabic). This suggests that the coating agent for the coating layer 43 may be any composition as long as it is capable of penetrating into the micropores of the base sheet 42 and solidifying in the micropores to block the micropores. It was also found that the air permeability of the two-layer or one-layer wrapper 41 having the base sheet 42 but not having the base sheet 42A, as in Example 1-4, is less than 1 Coresta unit.

[0153] In addition, in Comparative Example 6, an example was described in which NPNP1 was used as the base sheet 42 and P10000C was used as the base sheet 42A. The amount of coating of the coating layer 43 was different, but the base sheet 42 used was different from that in Example 5. It is assumed that NPNP1 contributes to increasing the diffusion coefficient and air permeability compared to the TP base paper. For this reason, it can be said that the selection of the outer base sheet 42 as well as the inner base sheet 42A of the wrapper 41 is important.

[0154] Another embodiment of the present invention will now be described. [1] A tobacco part having a tobacco filler containing a volatile flavoring and a wrapper surrounding the tobacco filler; The filter section, an additional segment having air permeability, the additional segment being provided so as to cover a second end surface of the tobacco portion opposite to a first end surface facing the filter portion; A non-combustion heating type flavor inhalation article comprising: [2] The non-combustion heating type flavor inhalation article according to [1], wherein the additional segment is a filter. [3] The non-combustion heating type flavor inhalation article according to [1], wherein the additional segment is a center hole segment having a hollow portion in the center. [4] The non-combustion heating flavor inhalation article according to [1], wherein the additional segment is a protrusion formed by extending a connecting portion that connects the tobacco portion and the filter portion. [5] The non-combustion heating type flavor inhalation article according to [1], wherein the connecting portion is made of paper. [6] The non-combustion heating type flavor inhalation article described in [1], further comprising a connecting portion that connects the tobacco portion and the filter portion. [7] [1] A non-combustion heating type flavor inhalation article, a heater for heating the non-combustion heating type flavor inhalation article; An electrically heated flavor suction system comprising: [8] The electrically heated flavor inhalation system according to [7], wherein the heater heats the non-combustion heating type flavor inhalation article at 30°C to 400°C. [A] a tobacco filler material including a tobacco filler and a volatile flavoring; a wrapper surrounding the tobacco filler; A tobacco part having a The wrapper has a diffusion coefficient of 0 cm / s or more, and an upper limit value of the diffusion coefficient is between 0.022 cm / s and 0.10 cm / s. [B] The non-combustion heating type flavor inhalation article according to [A], wherein the diffusion coefficient of the wrapper is from 0 cm / s to 0.022 cm / s. [C] The non-combustion heating type flavor inhalation article according to [A] or [B], wherein the wrapper has a base sheet made of paper and / or nonwoven fabric having the above diffusion coefficient. [D] The wrapper has a base sheet made of paper and / or nonwoven fabric, and a nonmetallic coating layer provided on the base sheet, The non-combustion heating type flavor inhalation article according to [A] or [B], wherein the diffusion coefficient is determined by the base sheet and the coating layer. [D-1] The base sheet has a first sheet made of paper or nonwoven fabric and a second sheet made of paper or nonwoven fabric, The non-combustion heating type flavor inhalation article according to [D], wherein the coating layer is sandwiched between the first sheet and the second sheet. [D-2] The non-combustion heating flavor inhalation article according to [D], wherein the coating layer is provided on a surface of the base sheet that contacts the tobacco filler. [D-3] The non-combustion heating type flavor inhalation article according to [D], wherein the coating layer contains a resin, a thickener, or a mixture thereof. [D-4] The resin is polyvinyl alcohol, ethylene vinyl acetate copolymer, or polyvinyl acetate. [D-3] The non-combustion heating type flavor inhalation article according to claim 1. [D-5] The non-combustion heating type flavor inhalation article according to [D-3], wherein the thickener is gum arabic, starch, sodium alginate, pectin, carboxymethylcellulose, methylcellulose, ethylcellulose, or hydroxypropylmethylcellulose (HPMC). [D-6] The non-combustion heating type flavor inhalation article according to [D], wherein the coating layer further contains a filler. [D-7] The non-combustion heating type flavor inhalation article according to [D-6], wherein the filler is calcium carbonate, aluminum hydroxide, aluminum oxide, titanium dioxide, microcrystalline cellulose, kaolin, talc, or silica. [D-8] The non-combustion heating type flavor inhalation article according to any one of [A] to [D], wherein the volatile flavor is 1-menthol. [D-9] The non-combustion heating type flavor inhalation article according to any one of [A] to [D], wherein the tobacco filler contains 1.2% by weight or more of the volatile flavoring based on the weight of the tobacco filler. [D-10] The non-combustion heating flavor inhalation article according to any one of [A] to [D], wherein the tobacco filler contains 5% by weight to 30% by weight of an aerosol-generating base material relative to the weight of the tobacco filler. [D-11] [A] to [D] any one of the non-combustion heating type flavor inhalation articles, a heater for heating the non-combustion heating type flavor inhalation article; An electrically heated flavor suction system comprising: [E] The wrapper has one end and another end that is provided on the opposite side to the one end and is bonded to the one end, a surface treatment is applied to the coating layer in a portion corresponding to at least one of the one end and the other end to improve wettability; The non-combustion heating type flavor inhalation article described in [D], wherein the surface-treated surface forms an adhesive surface between the one end and the other end. [F] The wrapper has one end and another end that is provided on the opposite side to the one end and is bonded to the one end, a non-formation region where the coating layer is not formed is provided in a portion corresponding to either one of the one end portion and the other end portion; The non-combustion heating type flavor inhalation article according to [D], wherein the non-forming region forms an adhesive surface between the one end and the other end. [G] The non-combustion heating type flavor inhalation article according to any one of [A] to [D], wherein the wrapper has an air permeability of less than 1 Coresta unit. [H] The non-combustion heating flavor inhalation article according to any one of [A] to [D], wherein the tobacco filler contains at least one of shredded tobacco leaves and regenerated tobacco sheets. [I] A filter section provided adjacent to the tobacco section; an additional segment having air permeability, the additional segment being provided so as to cover a second end surface of the tobacco portion opposite to a first end surface facing the filter portion; The non-combustion heating type flavor inhalation article according to any one of [A] to [D], [J] The non-combustion heating type flavor inhalation article according to any one of [A] to [D], wherein the wrapper has an opacity of 72% or more, a whiteness of 80% or more, and a basis weight of 50 g / m2 or less. [K] The electrically heated flavor inhalation system according to [J], wherein the heater heats the non-combustion heating type flavor inhalation article at 30°C to 400°C. [L] The non-combustion heating flavor inhalation article according to any one of [A] to [D], wherein the tobacco filler contains 5% by weight to 30% by weight of an aerosol-generating base material relative to the weight of the tobacco filler. [M] The non-combustion heating type flavor inhalation article according to [L], wherein the aerosol-generating substrate contains glycerin. [N] forming a wrapper having a diffusion coefficient of 0 cm / s or more, the upper limit of said diffusion coefficient being between 0.022 cm / s and 0.10 cm / s; one end of the wrapper and another end of the wrapper that is provided on the opposite side to the one end and is bonded to the one end are bonded with an adhesive to surround the tobacco filler containing a volatile flavoring with the wrapper; A method for producing a non-combustion heating type flavor inhalation article, comprising the steps of: [O] forming the wrapper includes forming a coating layer on a surface of a paper and / or nonwoven fabric base sheet of the wrapper that contacts the tobacco filler; Adhering the one end and the other end of the wrapper with an adhesive includes subjecting the coating layer in a portion corresponding to at least one of the one end and the other end of the wrapper to a surface treatment for improving wettability, and using the surface that has been subjected to the surface treatment as an adhesive surface. A method for producing the non-combustion heating type flavor inhalation article according to [N].

[0155] The present invention is not limited to the above-mentioned embodiment, and various modifications can be made in the implementation stage without departing from the gist of the invention. The embodiments may be implemented in combination as appropriate as possible, and in that case, the combined effects can be obtained. Furthermore, the above-mentioned embodiment includes inventions at various stages, and various inventions can be extracted by appropriate combinations of the disclosed constituent elements. [Explanation of symbols]

[0156] 11...electrically heated flavor inhalation system, 12...main body, 14...rod, 23...tobacco filler, 24...tobacco section, first end surface 24A, second end surface 24B, 25...mouthpiece, 26...filter section, 27...connecting section, 41...wrapper, 42...base material sheet, 43...coating layer, 41A...one end, 41B...other end, 44...overlapped section, 45...adhesive, 46...non-formed area, 47...adhesive surface, 51...additional segment, 51A...hollow section.

Claims

1. A tobacco portion filled with a tobacco filler; A filter part that constitutes the suction mouth, an additional segment provided adjacent to the tobacco section on the opposite side to the filter section; a hollow connecting portion that connects the tobacco portion and the filter portion; a vent hole portion having a plurality of through holes provided in the connecting portion and penetrating the connecting portion in a thickness direction; having The additional segment is formed in a solid cylindrical shape filled with cellulose acetate fibers and has air permeability in the axial direction of the additional segment. A non-combustion heating type flavor inhalation article.

2. A tobacco portion filled with a tobacco filler; A filter part that constitutes the suction mouth, an additional segment provided adjacent to the tobacco section on the opposite side to the filter section; a connecting portion that connects the tobacco portion and the filter portion; an air vent portion having a plurality of through holes provided in the filter portion and penetrating the filter portion in a thickness direction; having The additional segment is formed in a solid cylindrical shape filled with cellulose acetate fibers and has air permeability in the axial direction of the additional segment. A non-combustion heating type flavor inhalation article.

3. 3. The non-combustion heating type flavor inhalation article according to claim 1, wherein the filter section has a first segment located on the tobacco section side and having a hollow section, and a second segment located on the mouthpiece side.

4. The through hole or the air vent portion is provided in the first segment. The non-combustion heating type flavor inhalation article according to claim 3.

5. 5. The non-combustion heating type flavor inhalation article according to claim 3, wherein the hollow portion has a diameter of 1.0 mm to 5.0 mm.

6. The non-combustion heating type flavor inhalation article according to claim 3 , wherein the air hole portion communicates with the hollow portion.

7. The non-combustion heating type flavor inhalation article according to claim 1 , wherein the connecting portion has a paper tube between the tobacco portion and the filter portion.

8. The tobacco portion has a tubular wrapper surrounding the tobacco filler, The diffusion coefficient of the wrapper was measured using a Diffusivity Tester manufactured by Borgwaldt as a measuring device for the diffusion coefficient, and CO ２ and N ２ When measured under conditions of an environmental temperature of 22°C and a relative humidity of 60%, the viscosity is 0 cm / s to 0.1 cm / s. The non-combustion heating type flavor inhalation article according to any one of claims 1 to 7.

9. The tobacco portion has a tubular wrapper surrounding the tobacco filler, The wrapper has an air permeability of less than 5 Coresta Units (C.U.); The non-combustion heating type flavor inhalation article according to any one of claims 1 to 7.

10. The tobacco filler contains a volatile flavoring, the additional segment covers the crystals of the volatile flavor that have grown from the tobacco filler generated within the additional segment, and prevents the crystals of the volatile flavor from being exposed to the outside from the tobacco filler; The non-combustion heating type flavor inhalation article according to any one of claims 1 to 9.

11. A tobacco part having a tobacco filler material containing a volatile flavoring that can crystallize during storage and a wrapper surrounding the tobacco filler material; a filter portion facing a first end surface of the tobacco portion; an additional segment that is provided so as to cover a second end surface of the tobacco portion opposite to the first end surface facing the filter portion, and that has air permeability in an axial direction; Equipped with The additional segment is formed in a solid cylindrical shape filled with cellulose acetate fibers that prevent crystallization of the volatile flavoring agent grown from the tobacco filler of the tobacco section during storage. A non-combustion heating type flavor inhalation article.

12. A tobacco part having a tobacco filler material containing a volatile flavoring that can crystallize during storage and a wrapper surrounding the tobacco filler material; a filter portion facing a first end surface of the tobacco portion; an additional segment that is provided so as to cover a second end surface of the tobacco portion opposite to the first end surface facing the filter portion, and that has air permeability in an axial direction; Equipped with the additional segment has a hollow portion filled with cellulose acetate fibers; The inside of the hollow portion can be made to produce crystals of the volatile flavoring that have grown from the tobacco portion during storage; The inside of the hollow portion is formed so that the user cannot see the crystal from the outside. A non-combustion heating type flavor inhalation article.

13. the additional segment and the tobacco portion are connected by a cigarette paper; The tobacco section and the filter section are connected by lining paper. The non-combustion heating type flavor inhalation article according to any one of claims 1 to 12.

14. A connecting portion connecting the tobacco portion and the filter portion; an air vent portion provided in the filter portion and having a plurality of through holes penetrating the filter portion; The non-combustion heating type flavor inhalation article according to claim 11 or 12, comprising:

15. A non-combustion heating type flavor inhalation article according to any one of claims 1 to 14, a heater for heating the non-combustion heating type flavor inhalation article; An electrically heated flavor suction system comprising:

16. The heater heats the non-combustion heating type flavor inhalation article to a temperature of 30° C. to 400° C. The electrically heated flavor inhalation system according to claim 15.

17. A non-combustion heating type flavor inhalation article according to any one of claims 1 to 10 and claim 14, a heater for heating the non-combustion heating type flavor inhalation article; Equipped with A control circuit for controlling the heater is provided. The control circuit drives the heater to heat the tobacco portion, When a user starts inhaling, steam is released from the tobacco portion, and the steam is cooled by air flowing into the connecting portion from the ventilation hole portion. Electrically heated flavor suction system.

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