Non-combustion heated tobacco products and electrically heated tobacco products

Abstract

Provided is a non-combustion heated tobacco provided with a tobacco rod part and a mouthpiece part. Said mouthpiece part comprises a cooling segment and a filter segment that contains a filtering medium. The tobacco rod part and the cooling segment are disposed adjacent to each other. The filtering medium has activated charcoal added thereto. The additive amount of activated charcoal is 15.0-80 m2 / cm2 when being represented by the value of: specific surface area of activated charcoal × weight of activated charcoal / cross-sectional area of filtering medium in direction perpendicular to airflow direction.

Description

[Technical field]

[0001] The present invention relates to non-combustion heated tobacco and electrically heated tobacco products. [Background technology]

[0002] In recent years, non-combustion heated tobacco, which is inserted into an electric heating device and used, has been developed as an alternative to cigarettes (paper cigarettes) (Patent Document 1). Such non-combustion heated tobacco generally comprises a tobacco rod made of tobacco shreds, a material that produces flavor components, and the like, wrapped in cigarette paper, a mouthpiece for inhaling the components produced from the tobacco rod by heating, and tipping paper around which these are wrapped. Generally, in electrically heated tobacco products, a non-combustion heated tobacco is inserted into an electrically heated device, and then the heater member is turned on to heat the tobacco rod starting from the point of contact with the heater member, and the generated components are delivered to the user. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2015-508676 Summary of the Invention [Problem to be solved by the invention]

[0004] Even in electrically heated tobacco products, there is room for further study regarding the delivery of ingredients generated by heating. In particular, electrically heated tobacco products are heated at a low temperature during use, and therefore the amount of ingredients generated differs from that of conventional cigarettes, making it an issue to adjust the amount of ingredients delivered to the user. Another important issue is to provide the user with a desired flavor sensation. Therefore, the objective of the present invention is to provide a non-combustion heated tobacco product and an electrically heated tobacco product that can deliver the components generated by heating to the user in the desired amounts and provide the user with the desired flavor sensation. [Means for solving the problem]

[0005] As a result of extensive investigations, the present inventors have found that the above problems can be solved by adding a predetermined amount of activated carbon to a filter medium, and have arrived at the present invention.

[0006] That is, the gist of the present invention is as follows. [1] A rod-shaped non-combustion heated tobacco product having a tobacco rod portion and a mouthpiece portion, The mouthpiece portion includes a cooling segment and a filter segment including a filter medium, the tobacco rod portion and the cooling segment are adjacent to each other, activated carbon is added to the filter medium, and the amount of activated carbon added per non-combustion heat-not-burn tobacco is calculated by the following formula (1): BET specific surface area of ​​activated carbon × weight of activated carbon / cross-sectional area of ​​filter medium in a direction perpendicular to the direction of ventilation (1). The value represented by is 15.0m 2 / cm 2 More than 80 .0 m 2 / cm 2 Non-combustion heated tobacco products that are added as follows: [2] A non-combustion heated tobacco product as described in [1], wherein openings are provided concentrically around the periphery of the cooling segment, and the openings are present in an area of ​​4 mm or more and 7 mm or less in the direction toward the cooling segment from the boundary between the cooling segment and the filter segment. [3] A non-combustion heated tobacco product described in [1] or [2], wherein the filter segment is composed of a center hole segment having one or more hollow portions and a filter material. [4] The BET specific surface area of ​​the activated carbon is 1100 m 2 / g or more, 1600m 2 / g or less. [5] The non-combustion heated tobacco product described in [4], wherein the amount of activated carbon added is 5 mg / cm or more and 50 mg / cm or less per unit length in the air passage direction of the filter material. [6] An electrically heated tobacco product comprising: an electrically heated device having a heater member, a battery unit that serves as a power source for the heater member, and a control unit for controlling the heater member; and a non-combustion heated tobacco product according to any one of [1] to [5], which is inserted so as to come into contact with the heater member. Effect of the Invention

[0007] According to the present invention, it is possible to provide non-combustion heated tobacco and electrically heated tobacco products that can deliver to the user the desired amounts of components generated by heating and can provide the user with the desired flavor sensation. [Brief description of the drawings]

[0008] [Figure 1] 1 is a schematic diagram of a non-combustion heated tobacco product according to an embodiment of the present invention. [Diagram 2] 1 is a schematic diagram of a non-combustion heated tobacco product according to an embodiment of the present invention. [Diagram 3] 1 is a schematic diagram of an electrically heated tobacco product according to an embodiment of the present invention. [Figure 4] 1 is a schematic diagram of an electrically heated tobacco product according to an embodiment of the present invention. [Diagram 5] FIG. 13 is a diagram illustrating the end of the region where the cooling segment and the electrically heated device contact each other on the suction end side. [Figure 6] FIG. 13 is a diagram illustrating the end of the region where the cooling segment and the electrically heated device contact each other on the suction end side. [Figure 7] 1 is a graph showing the amount of nicotine delivered in an example. [Figure 8] 1 is a graph showing the amount of glycerin delivered in an example. [Figure 9] 1 is a graph showing the amount of propylene glycol delivered in an example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The following describes in detail the embodiments of the present invention, but these descriptions are merely examples (representative examples) of the embodiments of the present invention, and the present invention is not limited to these contents as long as they do not depart from the gist of the present invention. In addition, in this specification, when a numerical value or physical property value is enclosed before and after "~", the values ​​before and after the "~" are included. In addition, in this specification, "plurality" means two or more, unless otherwise specified.

[0010] <Non-combustion heated tobacco> A non-combustion heated tobacco product according to one embodiment of the present invention (also simply referred to as a "non-combustion heated tobacco product") is a rod-shaped non-combustion heated tobacco product having a tobacco rod portion and a mouthpiece portion, The mouthpiece portion includes a cooling segment and a filter segment including a filter medium, the tobacco rod portion and the cooling segment are adjacent to each other, activated carbon is added to the filter medium, and the amount of activated carbon added per non-combustion heat-not-burn tobacco is expressed by the following formula (1): BET specific surface area of ​​activated carbon × weight of activated carbon / cross-sectional area of ​​filter media perpendicular to the air flow direction (1) The value represented by is 15.0m 2 / cm 2 Above 80.0m 2 / cm 2 This is a non-combustion heated tobacco product that has the following additives: Unlike conventional cigarettes, non-combustion heat-not-burn tobacco does not involve combustion, and therefore the types and amounts of components produced during use are limited. Therefore, the technical idea of ​​adding activated carbon to the filter, as in the present embodiment, has not been conceived in the field of non-combustion heat-not-burn tobacco. An example of a non-combustion heat-not-burn tobacco product according to an embodiment is shown in Fig. 1. Hereinafter, the non-combustion heat-not-burn tobacco product will be described with reference to Fig. 1.

[0011] The non-combustion heated tobacco 10 shown in Figure 1 is a rod-shaped non-combustion heated tobacco comprising a tobacco rod portion 11, a mouthpiece portion 14, and a tipping paper 15 wrapped around them, and the mouthpiece portion 14 includes a cooling segment 12 and a filter segment 13 including a filter material, and the cooling segment 12 is sandwiched adjacent to the tobacco rod portion 11 and the filter segment 13 in the axial direction (also referred to as the "long axis direction") of the non-combustion heated tobacco 10, and an opening V may be provided concentrically in the circumferential direction of the cooling segment 12. The filter segment 13 includes a filter medium, to which a predetermined amount of activated carbon is added. In Fig. 1, the filter segment 13 is composed of a filter medium 13a to which activated carbon is added and a filter medium 13b to which activated carbon is not added. This will be described later.

[0012] The opening V provided in the cooling segment 12 of the non-combustion heat-not-burn tobacco 10 shown in Figure 1 is usually a hole for promoting the inflow of air from the outside when the user inhales, and this inflow of air can lower the temperature of the components and air flowing in from the tobacco rod portion 11. The openings V that may be provided in this embodiment may be present in an area 4 mm or more in the direction toward the cooling segment from the boundary between the cooling segment 12 and the filter segment 13. This configuration can improve the cooling ability to lower the temperature of the components and air generated by heating, and further suppress retention of the components and air in the cooling segment, thereby improving the delivery amount of the components. In addition, examples of components generated by heating include flavor components derived from flavorings, nicotine derived from tobacco leaves, tar, and aerosol components derived from the aerosol base material. In this specification, the aerosol base material is a base material for generating an aerosol.

[0013] The rod-shaped non-combustion heating tobacco product 10 preferably has a columnar shape that satisfies an aspect ratio of 1 or more, as defined below. Aspect ratio=h / w w is the width of the bottom surface of the columnar body (in this specification, this is defined as the width of the bottom surface on the tobacco rod portion side), h is the height of the columnar body, and it is preferable that h≧w. In this specification, the long axis direction is defined as the direction indicated by h. Therefore, even if w≧h, the direction indicated by h will be referred to as the long axis direction for convenience. The shape of the bottom surface is not limited and may be a polygon, a rounded polygon, a circle, an ellipse, etc., and the width w is the diameter when the bottom surface is a circle, the major axis when the bottom surface is an ellipse, or the diameter of the circumscribing circle or the major axis of the circumscribing ellipse when the bottom surface is a polygon or a rounded polygon. The length h of the non-combustion heating tobacco product 10 in the major axis direction is not particularly limited, and is, for example, usually 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more, and is usually 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less. The width w of the bottom surface of the columnar body of the non-combustion heating tobacco product 10 is not particularly limited, and is, for example, usually 5 mm or more, preferably 5.5 mm or more, and usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less. The ratio of the length of the cooling segment and the length of the filter segment (cooling segment:filter segment) in the longitudinal direction of the non-combustion heat-not-burn tobacco is not particularly limited, but from the viewpoint of the delivery amount of flavor and an appropriate aerosol temperature, it is usually 0.60-1.40:0.60-1.40, preferably 0.80-1.20:0.80-1.20, more preferably 0.85-1.15:0.85-1.15, even more preferably 0.90-1.10:0.90-1.10, and particularly preferably 0.95-1.05:0.95-1.05. In particular, when the cooling segment is made longer, the particulation of the aerosol or the like is promoted to realize a good flavor, but if it is too long, the substances passing through will adhere to the inner wall. By setting the length ratio of the cooling segment and the filter segment within the above range, a balance can be achieved between the cooling effect, the effect of suppressing aerosol loss due to the generated steam and aerosol adhering to the inner wall of the cooling segment, and the function of adjusting the air volume and flavor of the filter, thereby achieving a good flavor and flavor intensity.

[0014] The air resistance in the longitudinal direction per 120 mm of the non-combustion heated tobacco 10 is not particularly limited, but from the standpoint of ease of smoking, it is usually 8 mmH2O or more, preferably 10 mmH2O or more, and more preferably 12 mmH2O or more, and is usually 100 mmH2O or less, preferably 80 mmH2O or less, and more preferably 60 mmH2O or less. The airflow resistance is measured according to the ISO standard method (ISO6565:2015) using, for example, a filter airflow resistance measuring device manufactured by Cerulean Co., Ltd. The airflow resistance refers to the air pressure difference between the first end face and the second end face when air is flowed at a predetermined air flow rate (17.5cc / min) from one end face (first end face) to the other end face (second end face) in a state where air does not pass through the side faces of the non-combustion heated tobacco 10. The unit is generally expressed in mmH2O. It is known that the relationship between the airflow resistance and the length of the non-combustion heated tobacco is proportional within the length range usually used (lengths of 5mm to 200mm), and if the length is doubled, the airflow resistance of the non-combustion heated tobacco doubles.

[0015] [Mouthpiece section] The configuration of the mouthpiece portion 14 is not particularly limited as long as it includes a cooling segment 12 and a filter segment 13 including a filter medium, and is configured such that the cooling segment 12 is sandwiched adjacent to the tobacco rod portion 11 and the filter segment 13 in the axial direction of the non-combustion heat-not-burn tobacco 10. The filter segment and the cooling segment will be described in detail below.

[0016] (Filter segment) The filter segment 13 is not particularly limited as long as it has a general filter function, and for example, a synthetic fiber tow (also simply referred to as "tow") or a material such as paper processed into a cylindrical shape can be used. General functions of a filter include, for example, adjusting the amount of air mixed in when inhaling aerosols, reducing flavor, and reducing nicotine and tar, but it is not necessary for the filter to have all of these functions. In addition, in electrically heated tobacco products, which tend to produce fewer components and have a lower tobacco filler filling rate compared to cigarette products, one of the important functions is to suppress the filtering function while preventing the tobacco filler from falling out.

[0017] The filter segment of this embodiment includes a filter medium, and activated carbon is added to at least a portion of the filter medium. The amount of activated carbon added is 15.0 m2 per non-combustion heated tobacco product, calculated as the specific surface area of ​​the activated carbon × the weight of the activated carbon / the cross-sectional area of ​​the filter medium in the direction perpendicular to the air flow direction. 2 / cm 2 Above 80.0m 2 / cm 2 The following is the result. For convenience, the above "specific surface area of ​​activated carbon × weight of activated carbon / cross-sectional area perpendicular to the airflow direction of the filter medium" is sometimes expressed as "surface area of ​​activated carbon per unit cross-sectional area." This surface area of ​​activated carbon per unit cross-sectional area can be calculated based on the specific surface area of ​​activated carbon added to the filter medium of one non-combustion heated tobacco, the weight of the added activated carbon, and the cross-sectional area of ​​the filter medium. Note that activated carbon may not be uniformly dispersed in the filter medium to which it is added, and therefore it is not required that the above range be satisfied in all cross-sections of the filter medium (cross-sections perpendicular to the airflow direction). In this embodiment, by setting the surface area of ​​the activated carbon per unit cross-sectional area within the above range, the components generated by heating can be delivered to the user in the desired amount and the user can be given the desired flavor sensation. If the surface area of ​​the activated carbon per unit cross-sectional area is smaller than the lower limit of the above range, the effect of adding the activated carbon cannot be fully obtained. On the other hand, if the surface area of ​​the activated carbon per unit cross-sectional area is larger than the upper limit of the above range, the components generated by heating are reduced more than necessary. The surface area of ​​activated carbon per unit cross-sectional area is 17.0 m 2 / cm 2 More preferably, 35.0m or more. 2 / cm 2 More preferably, it is 77.0m or more. 2 / cm 2 More preferably, it is 73.0m or less. 2 / cm 2 It is even more preferable that: The surface area of ​​the activated carbon per unit cross-sectional area can be adjusted, for example, by adjusting the specific surface area of ​​the activated carbon and the amount of the activated carbon added, and the cross-sectional area of ​​the filter medium in a direction perpendicular to the air flow direction. The surface area of ​​the activated carbon per unit cross-sectional area is calculated based on the filter medium to which the activated carbon is added. When the filter segment is composed of multiple filter mediums, the cross-sectional area and length of only the filter medium to which the activated carbon is added are used as the basis.

[0018] Examples of activated carbon that can be used in this embodiment include those made from raw materials such as wood, bamboo, coconut shells, walnut shells, and coal. In addition, examples of activated carbon that can be used in this embodiment include those made from activated carbon having a BET specific surface area of ​​1100 m 2 / g or more, 1600m 2 / g or more Anything below 1200m can be used, preferably 1200m 2 / g or more, 1500m 2 / g or less, and more preferably 1250m 2 / g or more, 1380m 2The BET specific surface area can be determined by a nitrogen gas adsorption method (BET multipoint method). The activated carbon usable in this embodiment has a pore volume of 400 μL / g or more and 800 μL / g or less, more preferably 500 μL / g or more and 750 μL / g or less, and even more preferably 600 μL / g or more and 700 μL / g or less. The pore volume can be calculated from the maximum adsorption amount obtained by the nitrogen gas adsorption method. In this embodiment, the amount of activated carbon added per unit length in the air passage direction of the filter medium to which activated carbon has been added is preferably 5 mg / cm or more and 50 mg / cm or less, more preferably 8 mg / cm or more and 40 mg / cm or less, and even more preferably 10 mg / cm or more and 35 mg / cm or less. In this embodiment, by setting the specific surface area of ​​the activated carbon and the amount of activated carbon added within the above ranges, the surface area of ​​the activated carbon per unit cross-sectional area can be adjusted to a desired value. The activated carbon usable in this embodiment preferably has a cumulative 10% by volume particle diameter (particle diameter D10) of 250 μm or more and 1200 μm or less, and a cumulative 50% by volume particle diameter (particle diameter D50) of 350 μm or more and 1500 μm or less. D10 and D50 are measured by the laser diffraction scattering method. An example of a suitable device for this measurement is the HORIBA Laser Diffraction / Scattering Particle Size Distribution Analyzer "LA-950." Powder is poured into the cell of this device together with pure water, and the particle size is detected based on the light scattering information of the particles. The measurement conditions using this device are as follows. Measurement mode: Manual flow - Expression Cell Measurement Dispersion medium: Ion-exchanged water Dispersion method: Measured after 1 minute of ultrasonic irradiation Refractive index: 1.92-0.00i (sample refractive index rate ) / 1.33-0.00i (refractive index of dispersion medium) Number of measurements: Measure twice using different samples

[0019] In this embodiment, the method for adding activated carbon to the filter medium is not particularly limited, and the activated carbon may be added so as to be dispersed approximately uniformly in the filter medium to which the activated carbon is to be added.

[0020] The filter segment 13 may be, for example, one produced by the production method described below, or a commercially available product. Furthermore, the form of the filter segment 13 is not particularly limited, and it can be a filter including a single filter segment, or a multi-segment filter including a plurality of filter segments, such as a dual filter or triple filter. When the filter is made of a single filter segment, the filter medium to which activated carbon is added is itself the filter segment. On the other hand, when the filter is made of multiple filter segments, it is preferable that the filter medium 13a made of the filter medium to which activated carbon is added is disposed upstream of the filter medium 13b constituting the mouth end, as shown in Fig. 1. On the other hand, activated carbon may be added to the filter medium constituting the filter segment constituting the mouth end. When the filter segment is a multi-segment filter, the length of the filter segment that is the basis for the amount of activated carbon added is the length of the filter medium to which activated carbon has been added. The amount of activated carbon added, in terms of weight relative to the entire filter segment, can be, for example, 4.0 mg or more and 24.0 mg or less, preferably 4.5 mg or more and 23.0 mg or less, and more preferably 10.5 mg or more and 22.0 mg or less.

[0021] The shape of the filter segment 13 is not particularly limited, and any known shape can be adopted. Usually, the filter segment 13 can have a cylindrical shape, and can have the following forms. Furthermore, the filter segment 13 may be provided with a section such as a cavity (such as a center hole) or a recess, the cross section of which in the circumferential direction is hollow (hollow).

[0022] The cross-sectional shape in the circumferential direction of the filter segment 13 is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product, but is usually 4.0 mm or more and 9.0 mm or less, preferably 4.5 mm or more and 8.5 mm or less, and more preferably 5.0 mm or more and 8.0 mm or less. When the cross section is not circular, the above diameter is applied to a circle having the same area as the cross section. The peripheral length of the circumferential cross-sectional shape of the filter segment 13 can be appropriately changed according to the size of the product, but is usually 14.0 mm or more and 27.0 mm or less, preferably 15.0 mm or more and 26.0 mm or less, and more preferably 16.0 mm or more and 25.0 mm or less. The axial length of the filter segment 13 can be appropriately changed according to the size of the product, but is usually 15.0 mm or more and 35.0 mm or less, preferably 17.5 mm or more and 32.5 mm or less, and more preferably 20.0 mm or more and 30.0 mm or less.

[0023] The airflow resistance per 120 mm of axial length of the filter segment 13 is not particularly limited, but is usually 40 mmH2O or more and 300 mmH2O or less, preferably 70 mmH2O or more and 280 mmH2O or less, and more preferably 90 mmH2O or more and 260 mmH2O or less. The airflow resistance is measured according to the ISO standard method (ISO6565), for example, using a filter airflow resistance measuring device manufactured by Cerulean Co., Ltd. The airflow resistance of the filter segment 13 refers to the air pressure difference between the first end face and the second end face when air is flowed at a predetermined air flow rate (17.5 cc / min) from one end face (first end face) to the other end face (second end face) in a state where air does not pass through the side face of the filter segment 13. The unit is generally expressed in mmH2O. It is known that the relationship between the airflow resistance of the filter segment 13 and the length of the filter segment 13 is proportional within the length range usually used (lengths of 5 mm to 200 mm), and if the length is doubled, the airflow resistance of the filter segment 13 doubles.

[0024] The filter segment 13 can be produced by a known method, for example, when a synthetic fiber such as cellulose acetate tow is used as the material of the filter medium, the filter segment 13 can be produced by a method of spinning a polymer solution containing a polymer and a solvent and crimping the polymer solution. For example, the method described in International Publication No. 2013 / 067511 can be used as the method.

[0025] The embodiment of the filter material constituting the filter segment 13 is not particularly limited, and may be any known embodiment, such as a cylindrically processed cellulose acetate tow. The single-filament fineness and total fineness of the cellulose acetate tow are not particularly limited, but in the case of a mouthpiece member with a circumference of 22 mm, the single-filament fineness is preferably 5 g / 9000 m or more and 12 g / 9000 m or less, and the total fineness is preferably 12000 g / 9000 m or more and 35000 g / 9000 m or less. The cross-sectional shape of the fiber of the cellulose acetate tow may be a circle, an ellipse, a Y-shape, an I-shape, or an R-shape. In the case of a filter filled with cellulose acetate tow, 5% by weight or more and 10% by weight or less of triacetin may be added to the cellulose acetate tow weight to improve the filter hardness. In addition, a paper filter filled with sheet-shaped pulp paper may be used instead of the acetate filter.

[0026] The density of the filter material constituting the filter segment 13 is not particularly limited, but is usually 0.10 g / cm 3 More than 0.25g / cm 3 Less than or equal to 0.11 g / cm 3 More than 0.24g / cm 3 It is preferable that the concentration is 0.12 g / cm or less. 3 More than 0.23g / cm 3 It is more preferable that:

[0027] The filter segment 13 may further include a center hole segment having one or more hollow portions. The center hole segment is usually disposed closer to the cooling segment than the filter medium to which the activated carbon is added, and is preferably disposed adjacent to the cooling segment.

[0028] The center hole segment is composed of a filling layer having one or more hollow parts and an inner plug wrapper (inner wrapping paper) that covers the filling layer. For example, the center hole segment is composed of a filling layer having a hollow part and an inner plug wrapper that covers the filling layer. The center hole segment has a function of increasing the strength of the mouthpiece part. The filling layer can be, for example, a rod with an inner diameter of φ1.0 mm or more and φ5.0 mm or less, which is densely packed with cellulose acetate fibers and hardened by adding a plasticizer containing triacetin in an amount of 6% by mass or more and 20% by mass or less relative to the mass of cellulose acetate. Since the filling layer has a high fiber packing density, air and aerosol flow only through the hollow parts during inhalation and hardly flow inside the filling layer. Since the filling layer inside the center hole segment is a fiber packed layer, the touch from the outside during use rarely causes discomfort to the user. The center hole segment may not have an inner plug wrapper and its shape may be maintained by thermoforming.

[0029] The center hole segment and the filter medium may be connected, for example, by an outer plug wrapper (outer wrapping paper). The outer plug wrapper may be, for example, a cylindrical paper. The tobacco rod portion 11, the cooling segment 12, and the connected center hole segment and filter medium may be connected, for example, by a mouthpiece lining paper. These connections can be made, for example, by applying a glue such as a vinyl acetate glue to the inner surface of the mouthpiece lining paper, and then inserting and winding the tobacco rod portion 11, the cooling segment 12, and the connected center hole segment and filter medium. These may be connected in multiple separate passes using multiple lining papers.

[0030] From the viewpoint of improving strength and structural rigidity, the filter segment 13 may be provided with a wrapper (filter plug wrapper) around which the above-mentioned filter material is wrapped. The form of the wrapper is not particularly limited, and may include one or more rows of seams containing adhesive. The adhesive may include a hot melt adhesive, and the hot melt adhesive may further include polyvinyl alcohol. In addition, when the filter is composed of two or more segments, it is preferable that the wrapper wraps these two or more segments together. The material of the wrapper is not particularly limited, and any known material can be used, which may contain a filler such as calcium carbonate. The thickness of the wrapper is not particularly limited, and is usually 20 μm or more and 140 μm or less, preferably 30 μm or more and 130 μm or less, and more preferably 30 μm or more and 120 μm or less. The basis weight of the roll is not particularly limited, and is usually from 20 gsm to 100 gsm, preferably from 22 gsm to 95 gsm, and more preferably from 23 gsm to 90 gsm. Furthermore, the wrapper may be either coated or uncoated, but is preferably coated with a desired material from the standpoint of imparting functions other than strength and structural rigidity.

[0031] (Cooling segment) The cooling segment 12 is sandwiched adjacent to the tobacco rod portion and the filter segment, and is usually a rod-shaped member provided with a cavity such that the cross section in the circumferential direction of the cylinder or the like is hollow (hollow). The cooling segment 12 may be provided with openings V (also referred to as "ventilation filters (Vf)" in the present technical field) arranged circumferentially and concentrically, as shown in Fig. 2. Although eight openings V are arranged concentrically in Fig. 2, the number of openings V is not limited to this. Furthermore, the openings may be present in an area 4 mm or more from the boundary between the cooling segment and the filter segment toward the cooling segment. The presence of the openings V allows air to flow from the outside into the cooling section during use, lowering the temperature of the components and air flowing in from the tobacco rod section. Opening hole V Location of installation By setting the area within a region of 4 mm or more from the boundary between the cooling segment and the filter segment toward the cooling segment, not only is the cooling capacity improved, but the retention of components generated by heating within the cooling segment is suppressed, thereby improving the delivery amount of the components. In addition, when an aerosol base material is used in the tobacco rod portion, vapor containing the aerosol base material and tobacco flavor components generated by heating the tobacco rod comes into contact with air from the outside and is cooled, thereby liquefying, thereby promoting the generation of an aerosol. Furthermore, when the concentrically arranged holes V are treated as one hole group, the hole group may be one or may be two or more. When there are two or more hole groups, from the viewpoint of improving the delivery amount of the component generated by heating, it is preferable that no hole group is provided in a region less than 4 mm from the boundary between the cooling segment and the filter segment toward the cooling segment. Furthermore, when the non-combustion heat-not-burn tobacco 10 is formed by wrapping the tobacco rod portion 11, the cooling segment 12, and the filter segment 13 with tipping paper 15, it is preferable that the tipping paper 15 has an opening immediately above the opening V provided in the cooling segment 12. When producing such a non-combustion heat-not-burn tobacco 10, a tipping paper 15 having an opening that overlaps with the opening V may be prepared and wrapped, but from the viewpoint of ease of production, it is preferable to produce the non-combustion heat-not-burn tobacco 10 using a cooling segment 12 that does not have an opening V, and then to open a hole that penetrates both the cooling segment 12 and the tipping paper 15 at the same time.

[0032] The openings are preferably arranged so that the proportion of air flowing in from the openings when inhaling at 17.5 ml / sec with an automatic smoking machine (the volume proportion of air flowing in from the openings when the proportion of air inhaled from the mouth end is 100 volume%) is 10 to 90 volume%, preferably 50 to 80 volume%, more preferably 55 to 75 volume%. For example, this can be achieved by selecting the number of openings V per opening group from the range of 5 to 50, selecting the diameter of the openings V from the range of 0.1 to 0.5 mm, and combining these selections. The air inflow ratio can be measured using an automatic smoking machine (for example, a single-cigarette automatic smoking machine manufactured by Borgwaldt) according to a method conforming to ISO9512.

[0033] From the viewpoint of improving the delivery of the component generated by heating, the region in which the openings V exist is not particularly limited as long as it is a region of 2 mm or more from the boundary between the cooling segment 12 and the filter segment 13 toward the cooling segment side, but from the viewpoint of further improving the delivery of the component, it is preferably 3 mm or more, preferably 4 mm or more, more preferably 5 mm or more, and even more preferably 5.5 mm or more, and from the viewpoint of ensuring the cooling function, it is preferably 15 mm or less, more preferably 10 mm or less, and even more preferably 6 mm or less. From the viewpoint of improving the delivery of components generated by heating, the area in which the openings V exist is preferably an area of ​​22 mm or more from the mouth end of the non-combustion heated tobacco toward the cooling segment, preferably 23 mm or more, more preferably 24 mm or more, more preferably 25 mm or more, and even more preferably 25.5 mm or more; and from the viewpoint of ensuring the cooling function, it is preferably 35 mm or less, more preferably 30 mm or less, and even more preferably 26 mm or less. Furthermore, when considering the boundary between the cooling segment 12 and the tobacco rod portion 11 as a reference, when the axial length of the cooling segment 12 is 20 mm or more, from the viewpoint of ensuring the cooling function, the region in which the openings V exist is preferably a region extending from the boundary between the cooling segment 12 and the tobacco rod portion 11 toward the cooling segment by 2 mm or more, more preferably 5 mm or more, even more preferably 10 mm or more, and particularly preferably 14.5 mm or more, and from the viewpoint of improving the delivery of the components generated by heating, it is preferably 18 mm or less, more preferably 16 mm or less, and even more preferably 14.5 mm or less.

[0034] The diameter of the opening V is not particularly limited, but is preferably 100 μm or more and 1000 μm or less, more preferably 100 μm or more and 500 μm or less, and even more preferably 300 μm or more and 800 μm or less. The opening is preferably approximately circular or approximately elliptical, and in the case of an approximately elliptical shape, the above diameter represents the major axis.

[0035] The length of the cooling segment in the major axis direction can be appropriately changed according to the size of the product, but is usually 15 mm or more, preferably 20 mm or more, and more preferably 25 mm or more, and is usually 40 mm or less, preferably 35 mm or less, and more preferably 30 mm or less. By setting the length of the cooling segment in the major axis direction to the above lower limit or more, a sufficient cooling effect can be ensured to obtain a good flavor, and by setting it to the above upper limit or less, losses due to the generated steam and aerosol adhering to the inner wall of the cooling segment can be suppressed. When the cooling segment 12 is filled with a sheet or the like for cooling, the total surface area of ​​the cooling segment 12 is not particularly limited and may be, for example, 300 mm 2 / mm or more, 1000mm 2 / mm or less. This surface area is the surface area per length (mm) of the cooling segment 12 in the airflow direction. The total surface area of ​​the cooling segment 12 is 400 mm 2 / mm or more is preferable, and 450mm 2 / mm or more is more preferable, while 600 mm 2 / mm or less is preferable, and 550mm 2 It is more preferable that the thickness is equal to or less than 1 / mm.

[0036] It is desirable for the cooling segment 12 to have a large total surface area due to its internal structure. Thus, in a preferred embodiment, the cooling segment 12 may be formed from a thin sheet of material that is wrinkled to form channels, and then pleated, gathered, and folded. The more folds or pleats within a given volume of the element, the greater the total surface area of ​​the cooling segment.

[0037] The thickness of the constituent material of the cooling segment 12 is not particularly limited, and may be, for example, 5 μm or more and 500 μm or less, or 10 μm or more and 250 μm or less.

[0038] [Tobacco rod part] The form of the tobacco rod portion 11 is not particularly limited as long as it is a known form, but is usually a form in which a tobacco filler is wrapped in cigarette paper. The tobacco rod portion 11 may also have a fitting portion with a heater member or the like for heating the tobacco product. The tobacco rod portion 11, which is formed by wrapping a tobacco filler in cigarette paper, preferably has a columnar shape, and in this case, it is preferable that the aspect ratio, represented by the height of the tobacco rod portion 11 in the longitudinal direction relative to the width of the bottom surface of the tobacco rod portion 11, is 1 or greater. The shape of the bottom surface is not limited and may be polygonal, rounded polygonal, circular, elliptical, etc., and the width is the diameter when the bottom surface is circular, the major axis when the bottom surface is elliptical, and the diameter of the circumscribed circle or the major axis of the circumscribed ellipse when the bottom surface is polygonal or rounded polygonal. The tobacco filler constituting the tobacco rod portion 11 preferably has a height of about 10 to 70 mm and a width of about 4 to 9 mm. The length of the tobacco rod portion in the longitudinal direction can be appropriately changed according to the size of the product, but is usually 10 mm or more, preferably 12 mm or more, more preferably 15 mm or more, and even more preferably 18 mm or more, and is usually 70 mm or less, preferably 50 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less. In addition, the ratio of the length of the tobacco rod portion 11 to the overall length h in the longitudinal direction of the non-combustion heated tobacco 10 is not particularly limited, but from the viewpoint of the balance between the delivery amount and the aerosol temperature, it is usually 10% or more, preferably 20% or more, more preferably 25% or more, and even more preferably 30% or more, and is usually 80% or less, preferably 70% or less, more preferably 60% or less, even more preferably 50% or less, particularly preferably 45% or less, and most preferably 40% or less.

[0039] (Tobacco Filling) (1) First tobacco filling First, the first tobacco filler (also simply referred to as "first filler") will be described. The material of the tobacco shreds contained in the first filler is not particularly limited, and known materials such as lamina or ribs can be used. Alternatively, the first filler may be a tobacco shred made by crushing dried tobacco leaves to an average particle size of 20 μm or more and 200 μm or less to produce tobacco shreds, which are homogenized and processed into a sheet (hereinafter simply referred to as homogenized sheet). Furthermore, the first filler may be a so-called strand type, in which a homogenized sheet having a length approximately equal to the longitudinal direction of a tobacco rod is shredded approximately horizontally to the longitudinal direction of the tobacco rod and filled into the tobacco rod. The width of the tobacco shreds is preferably 0.5 mm or more and 2.0 mm or less when filling the tobacco rod. The content of the tobacco filler in the tobacco rod is, for example, 200 mg / rod part or more and 800 mg / rod part or less in the case of a tobacco rod having a circumference of 22 mm and a length of 20 mm, and preferably 250 mg / rod part or more and 600 mg / rod part or less.

[0040] Regarding the tobacco leaves used for the preparation of the tobacco shreds and homogenized sheet, various types of tobacco can be used. For example, flue-cured tobacco, Burley, Orient, native tobacco, other Nicotiana tabacum varieties, Nicotiana rustica varieties, and mixtures thereof can be mentioned. As for the mixture, the above varieties can be appropriately blended to obtain the desired taste. Details of the tobacco varieties are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009". There are several conventional methods for producing the homogenized sheet, that is, the method for grinding tobacco leaves and processing them into a homogenized sheet. The first method is to produce a paper-making sheet using a papermaking process. The second method is to mix an appropriate solvent such as water with the ground tobacco leaves to homogenize them, and then cast the homogenized material thinly on a metal plate or metal plate belt and dry it to produce a cast sheet. The third method is to mix an appropriate solvent such as water with the ground tobacco leaves to homogenize them, and extrude them into a sheet to produce a rolled sheet. Details of the types of the homogenizing sheets are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0041] The moisture content of the tobacco filler is, for example, 10% by weight or more and 15% by weight or less, and preferably 11% by weight or more and 13% by weight or less, based on the total weight of the tobacco filler. Such a moisture content suppresses the occurrence of rolling stains and improves the suitability for rolling during the production of a tobacco rod. There are no particular limitations on the size of the tobacco shreds contained in the first tobacco filler or the method of preparing them. For example, dried tobacco leaves shredded to a width of 0.5 mm or more and 2.0 mm or less may be used. In addition, when using ground material for a homogenized sheet, dried tobacco leaves may be ground and homogenized to an average particle size of about 20 to 200 μm, processed into a sheet, and then chopped into a width of 0.5 mm or more and 2.0 mm or less.

[0042] The first tobacco filling may include an aerosol base material for generating aerosol smoke. The type of the aerosol base material is not particularly limited, and various extracts from natural products and / or their components may be selected depending on the application. Examples of the aerosol base material include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The content of the aerosol base material in the first tobacco filling material is not particularly limited, and from the viewpoint of generating sufficient aerosol and imparting a good flavor, it is usually 5% by weight or more, preferably 10% by weight or more, and usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less, relative to the total amount of the tobacco filling material.

[0043] The first tobacco filling may contain a flavoring. The type of the flavoring is not particularly limited, and from the viewpoint of imparting a good flavor, the following flavorings may be used: acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, balsam of Peru oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, β-carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-citronella, ... Nerol, Clary Sage Extract, Cocoa, Coffee, Cognac Oil, Coriander Oil, Cuminaldehyde, Davana Oil, δ-Decalactone, γ-Decalactone, Decanoic Acid, Dill Herb Oil, 3,4-Dimethyl-1,2-Cyclopentanedione, 4,5-Dimethyl-3-Hydroxy-2,5-Dihydrofuran-2-one, 3,7-Dimethyl-6-Octenoic Acid, 2,3-Dimethylpyrazine, 2,5-Dimethylpyrazine, 2,6-Dimethylpyrazine, Ethyl 2-Methylbutyrate, Ethyl Acetate, Ethyl Butyrate, Ethyl Hexanoate, Ethyl Isovalerate, Ethyl Lactate, Ethyl Laurate, Ethyl Levulinate, Ethyl Maltol, Ethyl Octanoate, Ethyl Oleate, Ethyl Palmitate, Ethyl Phenylacetate, Ethyl Propionate, Ethyl Stearate, Ethyl Valerate, Ethyl Vanillin, Ethyl Vanillin Glucoside, 2-Ethyl-3,(5 or 6)-Dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, gene absolute, gentian root infusion, geraniol, geranyl acetate, grape juice, guaiacol, guava extract, gamma-heptalactone, gamma-hexalactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, phenylhexyl acetate, honey, 4-hydroxy-3-pentenoic acid, la , 4-Hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, Sodium 4-Hydroxyundecanoate, Immortelle Absolute, β-Ionone, Isoamyl Acetate, Isoamyl Butyrate, Isoamyl Phenylacetate, Isobutyl Acetate, Isobutyl Phenylacetate, Jasmine Absolute, Cola Nut Tincture, Labdanum Oil, Lemon Terpeneless Oil, Licorice Extract, Linalool, Linalyl Acetate, Robe Dioscorea officinalis root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, paramethoxybenzaldehyde, methyl 2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, tsammi fruit, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentadecane Calactone, Peppermint Oil, Petitgrain Paraguay Oil, Phenethyl Alcohol, Phenethyl Phenylacetate, Phenylacetic Acid, Piperonal, Plum Extract, Propylguaethol, Propyl Acetate, 3-Propylidenephthalide, Prune Juice, Pyruvic Acid, Raisin Extract, Rose Oil, Rum, Sage Oil, Sandalwood Oil, Spearmint Oil, Styrax Absolute, Marigold Oil, Tea Distillate, Alpha-Terpineol, Terpinyl Acetate, 5,6,7,8-Tetrahydroquinoxaline, 1,5,5,9-Tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexene Examples of the fragrance include 2-(2-oxadienyl)buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), and ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5), and menthol is particularly preferred. These fragrances may be used alone or in combination of two or more.

[0044] The content of the flavoring in the first tobacco filling is not particularly limited, and from the viewpoint of imparting a good flavor, it is usually 10,000 ppm or more, preferably 20,000 ppm or more, more preferably 25,000 ppm or more, and is usually 70,000 ppm or less, preferably 50,000 ppm or less, more preferably 40,000 ppm or less, and even more preferably 33,000 ppm or less.

[0045] The filling density of the first tobacco filling material is not particularly limited, but is usually 250 mg / cm from the viewpoint of ensuring the performance of the first non-combustion heat-not-burn tobacco and imparting a good flavor. 3 or more, preferably 300 mg / cm 3 More than 400 mg / cm 3 or less, preferably 350 mg / cm 3 The following is the result. The first tobacco filler is wrapped in cigarette paper so that the first tobacco filler is on the inside to form a tobacco rod portion 11.

[0046] (2) Second tobacco filler The second tobacco filler is composed of a tobacco sheet filled in the filler. The number of the tobacco sheet may be one, or two or more.

[0047] In the case where the second tobacco filler is composed of a single tobacco sheet, for example, a tobacco sheet having one side with a length approximately equal to the longitudinal direction of the filling is folded multiple times horizontally to the longitudinal direction of the filling (so-called gathered sheet) and a tobacco sheet having one side with a length approximately equal to the longitudinal direction of the filling is also included in the filling, which is wound in a direction perpendicular to the longitudinal direction of the filling.

[0048] In the case where the second tobacco filling is composed of two or more tobacco sheets, for example, multiple tobacco sheets, one side of which has a length approximately the same as the longitudinal direction of the filling, are packed in a wound state in a direction perpendicular to the longitudinal direction of the filling so that they are arranged concentrically. "Concentrically arranged" means that the centers of all the tobacco sheets are arranged at approximately the same position. The number of tobacco sheets is not particularly limited, but examples include embodiments in which the number is 2, 3, 4, 5, 6, or 7. Two or more tobacco sheets may all have the same composition or physical properties, or some or all of the tobacco sheets may have different compositions or physical properties. Furthermore, the thicknesses of the tobacco sheets may be the same or different.

[0049] The second tobacco filler can be produced by preparing a plurality of tobacco sheets of different widths, stacking them together so that the width decreases from the bottom to the top, and then passing this through a winding tube and rolling it up into a shape. According to this manufacturing method, the plurality of tobacco sheets extend in the longitudinal direction and are arranged concentrically about the longitudinal axis, and a fitting portion extending in the longitudinal direction may be formed between the longitudinal axis and the innermost tobacco sheet.

[0050] In this manufacturing method, the laminate is preferably prepared so that a non-contact portion is formed between adjacent tobacco sheets after rolling. If there are non-contact portions (gaps) between multiple tobacco sheets where the tobacco sheets are not in contact, a flavor flow path can be secured to improve the delivery efficiency of the flavor components. On the other hand, heat from the heater can be transferred to the outer tobacco sheet via the contact portions of the multiple tobacco sheets, ensuring high heat transfer efficiency. In order to provide non-contact portions between multiple tobacco sheets where the tobacco sheets do not come into contact, for example, methods of preparing a laminate include using an embossed tobacco sheet, laminating adjacent tobacco sheets without bonding their entire surfaces together, bonding adjacent tobacco sheets together by bonding only a portion of the sheets together, or lightly bonding adjacent tobacco sheets together by bonding their entire surfaces or a portion of the sheets together so that they can be peeled off after rolling and molding. When preparing a tobacco rod including cigarette paper, the cigarette paper may be placed at the bottom of the layered product. Alternatively, the fitting portion can be formed by placing a cylindrical dummy such as a mandrel on the top of the laminate to form the second tobacco filler, and then removing the dummy.

[0051] The packing density of the second tobacco filler is not particularly limited, but is usually 250 mg / cm from the viewpoint of ensuring the performance of the tobacco product and imparting a good flavor. 3 or more, preferably 300 mg / cm 3 More than 400 mg / cm 3 or less, preferably 350 mg / cm 3 The following is the result.

[0052] The content of the second tobacco filling material per filling is not particularly limited, but for example, in the case of a tobacco rod portion having a circumference of 22 mm and a length of 20 mm, an amount of at least 200 mg / rod portion and no more than 800 mg / rod portion is an example, and a preferred example is an amount of at least 250 mg / rod portion and no more than 600 mg / rod portion.

[0053] The tobacco sheet may contain an aerosol base material that generates aerosol smoke when heated. An aerosol source such as glycerin, propylene glycol, or a polyol such as 1,3-butanediol is added as the aerosol base material. The amount of the aerosol base material added is preferably 5% by weight or more and 50% by weight or less, more preferably 15% by weight or more and 25% by weight or less, based on the dry weight of the tobacco sheet.

[0054] The tobacco sheet can be appropriately manufactured by a known method such as paper making, slurry, rolling, etc. The homogenized sheet described in the first tobacco filler can also be used. In the case of papermaking, tobacco can be produced by a method including the following steps: 1) Dried tobacco leaves are roughly crushed and extracted with water to separate the water extract and residue. 2) The water extract is dried under reduced pressure and concentrated. 3) Pulp is added to the residue, which is then fiberized in a refiner and made into paper. 4) A concentrated liquid of the water extract is added to the paper-made sheet and dried to produce a tobacco sheet. In this case, a step of removing some of the components, such as nitrosamines, may be added (see JP2004-510422A). In the case of the slurry method, it can be produced by a method including the following steps: 1) Mixing water, pulp, and binder with crushed tobacco leaves. 2) Spreading (casting) the mixture thinly and drying it. In this case, a step of irradiating the slurry of water, pulp, binder, and crushed tobacco leaves with ultraviolet light or X-rays to remove some of the components such as nitrosamines may be added.

[0055] Alternatively, as described in WO 2014 / 104078, a nonwoven tobacco sheet may be used, which is produced by a method including the following steps: 1) mixing powdered tobacco leaves with a binder; 2) sandwiching the mixture between nonwoven fabrics; and 3) forming the laminate into a certain shape by thermal welding to obtain a nonwoven tobacco sheet. The type of tobacco leaf material used in each of the above-mentioned methods can be the same as that explained for the first filling material. The composition of the tobacco sheet is not particularly limited, but for example, the content of the tobacco raw material (tobacco leaves) is preferably 50% by weight or more and 95% by weight or less with respect to the total weight of the tobacco sheet. The tobacco sheet may also contain a binder, and examples of such binders include guar gum, xanthan gum, CMC (carboxymethylcellulose), and CMC-Na (sodium salt of carboxymethylcellulose). The amount of the binder is preferably 1% by weight or more and 10% by weight or less with respect to the total weight of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of additives include fillers such as pulp. In this embodiment, a plurality of tobacco sheets are used, and the tobacco sheets may all have the same composition or physical properties, or some or all of the tobacco sheets may have different compositions or physical properties.

[0056] The second tobacco filler can be produced by preparing a plurality of tobacco sheets of different widths, stacking them so that the width decreases from the bottom to the top, and rolling the stack through a rolling tube. According to this production method, the plurality of tobacco sheets extend in the longitudinal direction and are arranged concentrically about the longitudinal axis. A fitting portion extending in the longitudinal direction may be formed between the longitudinal axis and the innermost tobacco sheet. In this manufacturing method, it is preferable that the laminate is prepared so that non-contact portions are formed between adjacent tobacco sheets after rolling and forming. When there are non-contact portions (gaps) between multiple tobacco sheets, where the tobacco sheets are not in contact with each other, a flavor flow path can be secured, thereby improving the delivery efficiency of the flavor components. On the other hand, when the tobacco product is used in an electrically heated tobacco product, heat from the heater can be transferred to the outer tobacco sheet through the contact portions of the multiple tobacco sheets, ensuring high heat transfer efficiency.

[0057] In order to provide non-contact portions between multiple tobacco sheets where the tobacco sheets do not come into contact, for example, methods of preparing a laminate include using an embossed tobacco sheet, laminating adjacent tobacco sheets without bonding their entire surfaces together, bonding adjacent tobacco sheets together by bonding only a portion of the sheets together, or lightly bonding adjacent tobacco sheets together by bonding their entire surfaces or a portion of the sheets together so that they can be peeled off after rolling and molding. When preparing a tobacco rod portion including cigarette paper, the cigarette paper may be disposed at the bottommost part of the laminate. Alternatively, the fitting portion can be formed by placing a cylindrical dummy such as a mandrel on the top of the laminate to form the second tobacco filler, and then removing the dummy. The thickness of each tobacco sheet is not limited, but in consideration of the balance between heat transfer efficiency and strength, it is preferably 150 μm or more and 1000 μm or less, and more preferably 200 μm or more and 600 μm or less. The thickness of each tobacco sheet may be the same or different. The number of tobacco sheets constituting the second tobacco filler is not particularly limited, but may be, for example, 2, 3, 4, 5, 6, or 7.

[0058] (3) Third tobacco filling The third tobacco filler is composed of tobacco granules. The raw materials of the third tobacco filling material are not particularly limited, but may include (a) ground tobacco material, (b) moisture, (c) at least one pH adjuster selected from the group consisting of potassium carbonate and sodium bicarbonate, and (d) at least one binder selected from the group consisting of pullulan and hydroxypropyl cellulose.

[0059] The ground tobacco material (component (a)) contained in the third tobacco filler includes ground tobacco leaves, ground tobacco sheets, etc. Types of tobacco include Burley, flue-cured, and Oriental. The tobacco material is preferably ground to a size of 200 μm or more and 300 μm or less. The raw material mixture for the third tobacco filler typically contains ground tobacco material in an amount of not less than 20% by weight and not more than 80% by weight.

[0060] The moisture (component (b)) contained in the third tobacco filling is intended to maintain the integrity of the tobacco granules. The raw material mixture of the third tobacco filler typically contains moisture in an amount of 3% by weight or more and 13% by weight or less. The third tobacco filler also typically contains moisture in an amount of 5% by weight or more and 17% by weight or less in terms of loss on drying. below The loss on drying refers to the change in weight before and after drying when a part of the sample is taken for measurement and the sample is completely dried by evaporating all the moisture in the taken sample (for example, when dried for 15 minutes at a constant temperature (105°C)), and specifically refers to the ratio (wt%) of the total amount of moisture contained in the sample and the amount of volatile components that volatilize under the above drying conditions to the sample weight. In other words, the loss on drying (wt%) can be expressed by the following formula. Loss on drying (wt%) = {(weight of sample before complete drying) - (weight of sample after complete drying)} x 100 / weight of sample before complete drying

[0061] The pH adjuster (component (c)) contained in the third tobacco filling comprises potassium carbonate, sodium bicarbonate or a mixture thereof. These pH adjusters adjust the pH of the third tobacco filling to the alkaline side, thereby promoting the release of flavor components contained in the third tobacco filling from the tobacco granules, and providing a flavor that is satisfactory to users. The raw material mixture for the third tobacco filling material may contain a pH adjuster, typically in an amount of 5% by weight or more and 20% by weight or less.

[0062] The binder (component (d)) contained in the third tobacco filler binds the tobacco granule components together to maintain the integrity of the tobacco granules. The binder is composed of pullulan, hydroxypropyl cellulose (HPC) or a mixture thereof. The raw material mixture for the third tobacco filler may contain a binder, typically in an amount of not less than 0.5% by weight and not more than 15% by weight.

[0063] The third tobacco filler may consist of components (a), (b), (c) and (d) above, but may further include additional components. Additional components include an aerosol base (component (e)). The aerosol base is what generates the aerosol smoke. The aerosol base is composed of polyhydric alcohols, which may include glycerin, propylene glycol, sorbitol, xylitol and erythritol. These polyhydric alcohols may be used alone or in combination of two or more. When the raw material mixture of the third tobacco filler contains an aerosol base, it may contain it in an amount of 5 to 15% by weight. The additional ingredients include (f) flavoring materials (solid or liquid) other than the flavoring ingredients. Such flavoring materials include sugar (sucrose, fructose, etc.), cocoa powder, carob powder, coriander powder, licorice powder, orange peel powder, rose pip powder, chamomile flower powder, lemon verbena powder, peppermint powder, leaf powder, spearmint powder, black tea powder, menthol, etc. These flavoring materials can be used alone or in combination of two or more kinds. The raw material mixture for the third tobacco filler may contain the flavoring material in an amount of not less than 0.5% by weight and not more than 30% by weight. The flavoring material may be added to components (a), (b), (c), and (d) by directly kneading the flavoring material with the components, or may be added to the components by supporting the flavoring material in a known inclusion host compound such as cyclodextrin to prepare an inclusion compound and then kneading the inclusion compound with the components. When the third tobacco filling consists of the above components (a), (b), (c), (d) and (e), the raw material mixture of the third tobacco filling may typically contain component (a) in an amount of about 33% by weight or more (about 90% by weight or less).

[0064] The third tobacco filler is obtained by mixing components (a), (c) and (d) and, if desired, components (e) and (f), adding component (b) to the mixture and kneading the mixture, granulating the resulting kneaded mixture (in a long columnar shape) in a wet extrusion granulator, and then regulating the granules into a short columnar or spherical shape. The average particle size (D50) of the resulting tobacco granules is usually 0.2 mm or more and 1.2 mm or less, preferably 0.2 mm or more and 1.0 mm or less, and more preferably 0.2 mm or more and 0.8 mm or less. In extrusion granulation, it is preferable to extrude the kneaded material at ambient temperature and at a pressure of 2 kN or more. This high-pressure extrusion causes the temperature of the kneaded material at the outlet of the extrusion granulator to rise instantaneously from ambient temperature to, for example, 90 to 100°C, and moisture and volatile components evaporate by 2% by weight or more and 4% by weight or less. Therefore, the amount of water added to prepare the kneaded material can be greater than the desired moisture content in the tobacco granules, which are the final product, by the amount of evaporation.

[0065] The tobacco granules obtained by extrusion granulation may be further dried as necessary to adjust the moisture content. For example, if the loss on drying of the tobacco granules obtained by extrusion granulation is measured and found to be higher than the desired loss on drying (e.g., 5% by weight or more and 17% by weight or less), the tobacco granules may be further dried to obtain the desired loss on drying. The drying conditions (temperature and time) for obtaining the desired loss on drying may be determined in advance as the drying conditions (temperature and time) required to reduce the loss on drying by a predetermined value, and set based on those conditions.

[0066] The third tobacco filler may consist only of the tobacco granules described above, but may also contain additional tobacco materials. The additional tobacco materials are usually shredded or finely powdered tobacco leaves. The additional tobacco materials may be used in combination with the tobacco granules.

[0067] (Scrolling paper) The composition of the cigarette paper is not particularly limited and may be a common embodiment, for example, a cigarette paper mainly composed of pulp. The pulp may be made from wood pulp such as softwood pulp or hardwood pulp, or may be made by mixing with non-wood pulp generally used in cigarette papers for tobacco products, such as flax pulp, hemp pulp, sisal pulp, or esparto. As for the types of pulp, chemical pulp produced by the kraft cooking method, acidic / neutral / alkaline sulfite cooking method, soda salt cooking method, etc., ground pulp, chemi-ground pulp, thermomechanical pulp, etc. can be used.

[0068] The pulp is used to produce cigarette paper by adjusting and homogenizing the texture during the papermaking process using a Fourdrinier papermaking machine, a cylinder papermaking machine, a combined cylinder and roll papermaking machine, etc. If necessary, a wet strength agent may be added to impart water resistance to the cigarette paper, or a sizing agent may be added to adjust the printing condition of the cigarette paper. In addition, aluminum sulfate, various anionic, cationic, nonionic, or amphoteric retention aids, drainage aids, and paper strength aids, and other papermaking additives, as well as dyes, pH adjusters, antifoaming agents, pitch control agents, and slime control agents, may be added.

[0069] The basis weight of the cigarette paper is, for example, usually 20 gsm or more, preferably 25 gsm or more, whereas the basis weight is usually 65 gsm or less, preferably 50 gsm or less, more preferably 45 gsm or less. The thickness of the cigarette paper having the above-mentioned characteristics is not particularly limited, and from the viewpoints of rigidity, breathability, and ease of adjustment during papermaking, it is usually 10 μm or more, preferably 20 μm or more, and more preferably 30 μm or more, and is usually 100 μm or less, preferably 75 μm or less, and more preferably 50 μm or less. The shape of the cigarette paper for the non-combustion heating tobacco can be, for example, square or rectangular. When used as cigarette paper for wrapping a tobacco filler (to produce a tobacco rod portion), the length of one side can be about 12 to 70 mm, and the length of the other side can be 15 to 28 mm, with the other side preferably having a length of 22 to 24 mm, and more preferably having a length of about 23 mm. When wrapping a tobacco filler in cigarette paper in a cylindrical shape, for example, the end of the cigarette paper in the w direction and the end on the opposite side are overlapped by about 2 mm and glued together to form a cylindrical paper tube shape in which the tobacco filler is filled. The size of the rectangular cigarette paper can be determined depending on the size of the completed tobacco rod portion 11. When the tobacco rod portion 11 and another member adjacent to the tobacco rod portion 11 are connected and wound together, such as with tipping paper, the length of one side may be 20 to 60 mm, and the length of the other side may be 15 to 28 mm.

[0070] In addition to the pulp, the cigarette paper may contain a filler, the content of which may be 10% by weight or more and less than 60% by weight, preferably 15% by weight or more and 45% by weight or less, based on the total weight of the cigarette paper. In the cigarette paper, within the preferred range of basis weight (25 gsm or more and 45 gsm or less), the filler content is preferably 15% by weight or more and 45% by weight or less. Furthermore, when the basis weight is 25 gsm or more and 35 gsm or less, the filler is preferably 15% by weight or more and 45% by weight or less, and when the basis weight is more than 35 gsm and 45 gsm or less, the filler is preferably 25% by weight or more and 45% by weight or less. As the filler, calcium carbonate, titanium dioxide, kaolin, etc. can be used, but it is preferable to use calcium carbonate from the viewpoint of enhancing flavor and whiteness.

[0071] Various auxiliaries other than the base paper and fillers may be added to the cigarette paper. For example, a water resistance improver may be added to improve water resistance. The water resistance improver includes a wet strength agent (WS agent) and a sizing agent. Examples of the wet strength agent include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of the sizing agent include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more. As an auxiliary, a paper strength agent may be added, for example, polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, etc. In particular, it is known that the use of a very small amount of oxidized starch improves the air permeability (JP 2017-218699 A). The wrapping paper may also be appropriately coated.

[0072] A coating agent may be added to at least one of the two surfaces of the wrapper paper, the front and back surfaces. There are no particular limitations on the coating agent, but a coating agent capable of forming a film on the surface of the paper and reducing the permeability of liquids is preferred. Examples of the coating agent include alginic acid and its salts (e.g., sodium salts), polysaccharides such as pectin, cellulose derivatives such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, and nitrocellulose, starch and its derivatives (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch, and ester derivatives such as starch acetate, starch phosphate, and starch octenyl succinate).

[0073] [Tip paper] The composition of the tipping paper 15 is not particularly limited and may be of a general form, for example, one in which pulp is the main component. The pulp may be made from wood pulp such as softwood pulp or hardwood pulp, or may be made by mixing non-wood pulp that is generally used for cigarette papers for tobacco products, such as flax pulp, hemp pulp, sisal pulp, or esparto. These pulps may be used alone or in combination in any ratio. Furthermore, the tipping paper 15 may be made up of one sheet, but may also be made up of multiple or more sheets. As the form of pulp, chemical pulp by the kraft cooking method, acidic / neutral / alkaline sulfite cooking method, soda salt cooking method, etc., ground pulp, chemi-ground pulp, thermomechanical pulp, etc. can be used. The tipping paper 15 may be produced by the production method described below, or a commercially available product may be used. The shape of the tipping paper 15 is not particularly limited and can be, for example, square or rectangular.

[0074] The basis weight of the tipping paper 15 is not particularly limited, but is usually 32 gsm or more and 40 gsm or less, preferably 33 gsm or more and 39 gsm or less, and more preferably 34 gsm or more and 38 gsm or less. The thickness of the tipping paper 15 is not particularly limited, and is usually 20 μm or more and 140 μm or less, preferably 30 μm or more and 130 μm or less, and more preferably 30 μm or more and 120 μm or less. The air permeability of the tipping paper 15 is not particularly limited, but is usually 0 Coresta units or more and 30,000 Coresta units or less, and preferably 0 Coresta units or more and 10,000 Coresta units or less. Note that the air permeability referred to in this specification is a value measured in accordance with ISO 2965:2009, and is the air permeability of an area of ​​1 cm per minute when the differential pressure between both sides of the paper is 1 kPa. 2 Flow rate of gas passing through (cm 3 ) 1 Coresta Unit (1 C.U.) is cm at 1 kPa.3 / (min cm 2 ).

[0075] The tip paper 15 may contain fillers other than the above pulp, examples of which include metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide and aluminum oxide, metal sulfates such as barium sulfate and calcium sulfate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum, etc., and it is particularly preferable that the tip paper 15 contains calcium carbonate from the viewpoints of improving whiteness and opacity and increasing the heating rate. Moreover, these fillers may be used alone or in combination of two or more kinds.

[0076] In addition to the above pulp and filler, various auxiliaries may be added to the tip paper 15. For example, the tip paper 15 may have a water resistance improver to improve the water resistance. The water resistance improver includes a wet strength agent (WS agent) and a sizing agent. Examples of the wet strength agent include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of the sizing agent include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more.

[0077] A coating agent may be added to at least one of the two surfaces, the front and back surfaces, of the tipping paper 15. There are no particular limitations on the coating agent, but a coating agent that can form a film on the surface of the paper and reduce liquid permeability is preferred.

[0078] [Manufacturing method of non-combustion heated tobacco] The method for producing the non-combustion heating tobacco described above is not particularly limited, and any known method can be used. For example, the tobacco rod and the mouthpiece can be wrapped in tip paper.

[0079] <Electrically heated tobacco products> An electrically heated tobacco product according to another embodiment of the present invention (also simply referred to as an "electrically heated tobacco product") is an electrically heated tobacco product comprising an electrically heated device including a heater element, a battery unit that serves as a power source for the heater element, and a control unit for controlling the heater element, and the above-mentioned non-combustion heated tobacco inserted so as to be in contact with the heater element. The electrically heated tobacco product may be configured to heat the outer peripheral surface of a non-combustion heated tobacco product 10 as shown in Fig. 3, or may be configured to heat the tobacco rod portion 11 of a non-combustion heated tobacco product 10 from the inside as shown in Fig. 4. The electrically heated device 20 shown in Figs. 3 and 4 is provided with an air introduction hole, but this is not shown here. The electrically heated tobacco product 30 will be described below with reference to Fig. 4. Note that for the non-combustion heated tobacco product 10 in Figs. 3 and 4, some of the reference symbols representing the components shown in Figs. 1 and 2 are omitted. The electrically heated tobacco product 30 is used by inserting the non-combustion heated tobacco product 10 described above into contact with the heater member 21 arranged inside the electrically heated device 20. The electrically heated device 20 has a battery unit 22 and a control unit 23 inside a body 24 made of, for example, resin. When the non-combustion heated tobacco 10 is inserted into the electrically heated device 20, the outer surface of the tobacco rod portion 11 comes into contact with the heater member 21 of the electrically heated device 20, and eventually the entire outer surface of the tobacco rod portion 11 and part of the outer surface of the tipping paper come into contact with the heater member 21. The heater member 21 of the electrically heated device 20 generates heat under the control of the control unit 23. The heat is transmitted to the tobacco rod portion 11 of the non-combustion heat-not-burn tobacco 10, causing the aerosol base material, flavor components, and the like contained in the tobacco filler of the tobacco rod portion 11 to volatilize.

[0080] The heater member 21 may be, for example, a sheet heater, a flat heater, or a cylindrical heater. The sheet heater is a flexible sheet-shaped heater, and examples thereof include a heater including a film (thickness: about 20 to 225 μm) of a heat-resistant polymer such as polyimide. The flat heater is a rigid flat heater (thickness: about 200 to 500 μm), and examples thereof include a heater having a resistance circuit on a flat substrate and using that part as a heat generating part. The cylindrical heater is a hollow or solid cylindrical heater (thickness: about 200 to 500 μm), and examples thereof include a heater having a resistance circuit on the outer circumferential surface of a metal cylinder and using that part as a heat generating part. In addition, examples thereof include a rod-shaped heater or a cone-shaped heater made of metal or the like having a resistance circuit inside and using that part as a heat generating part. The cross-sectional shape of the cylindrical heater may be a circle, an ellipse, a polygon, a rounded polygon, or the like. In the case of an embodiment in which the outer peripheral surface of the non-combustion heat-not-burn tobacco 10 is heated as shown in Fig. 3, the above-mentioned sheet-shaped heater, flat plate-shaped heater, and cylindrical heater can be used. On the other hand, in the case of an embodiment in which the tobacco rod portion 11 of the non-combustion heat-not-burn tobacco 10 is heated from the inside as shown in Fig. 4, the above-mentioned flat plate-shaped heater, columnar heater, and cone-shaped heater can be used. The length of the heater member 21 in the major axis direction can be within the range of L±5.0 mm, where the length of the tobacco rod portion 11 in the major axis direction is L mm. From the viewpoint of aerosol delivery, that is, sufficient heat transfer to the tobacco rod portion 11 and sufficient volatilization of the aerosol base material and flavor components contained in the tobacco filler, the length of the heater member 21 in the major axis direction is preferably L mm or more, and from the viewpoint of suppressing the generation of components that have an undesirable effect on the flavor, the length of the heater member 21 in the major axis direction is preferably L+0.5 mm or less, L+1.0 mm or less, L+1.5 mm or less, L+2.0 mm or less, L+2.5 mm or less, L+3.0 mm or less, L+3.5 mm or less, L+4.0 mm or less, L+4.5 mm or less, or L+5.0 mm or less.

[0081] The heating intensity, such as the heating time and heating temperature of the non-combustion heated tobacco product 10 by the heater member 21, can be preset for each electrically heated tobacco product 30. For example, by performing pre-heating for a certain period of time after inserting the non-combustion heated tobacco product 10 into the electrically heated device 20, the temperature of the outer circumferential surface of the portion of the non-combustion heated tobacco product 10 inserted into the electrically heated device 20 reaches X (°C), and thereafter, the temperature can be preset to be maintained at a constant temperature of X (°C) or less. From the viewpoint of the delivery amount of components generated by heating, the above X (°C) is preferably 80°C or more and 400°C or less. Specifically, it can be 80°C, 90°C, 100°C, 110°C, 120°C, 130°C, 140°C, 150°C, 160°C, 170°C, 180°C, 190°C, 200°C, 210°C, 220°C, 230°C, 240°C, 250°C, 260°C, 270°C, 280°C, 290°C, 300°C, 310°C, 320°C, 330°C, 340°C, 350°C, 360°C, 370°C, 380°C, 390°C, or 400°C. When heated by the heater member 21, steam containing components derived from the aerosol base material and components derived from flavor components is generated from the tobacco rod portion 11 and reaches the user's oral cavity through the mouthpiece portion 14, which is composed of a cooling segment 12, a filter segment 13, etc.

[0082] From the viewpoint of promoting the inflow of air from the outside and suppressing the retention of components and air generated by heating in the cooling segment 12, it is preferable that the opening V provided in the cooling segment 12 is located closer to the mouth end than the end (indicated by the arrow X in the figure) of the region in contact with the electrically heated device 20 in the cooling segment 12, as shown in Fig. 5. In addition, the insertion opening for the non-combustion heat-not-burn tobacco 10 of the electrically heated device 20 may be tapered as shown in Fig. 6 to facilitate the insertion of the non-combustion heat-not-burn tobacco 10, and in this case, the end of the region in contact with the electrically heated device 20 on the mouth end side is the position indicated by the arrow Y in the figure. Note that, for the non-combustion heat-not-burn tobacco 10 in Figs. 5 and 6, some of the reference symbols representing the components shown in Figs. 1 to 4 are omitted. EXAMPLES

[0083] The present invention will be described in more detail with reference to examples. However, the present invention is not limited to the description of the following examples as long as it does not deviate from the gist of the present invention.

[0084] <Production of non-combustion heated tobacco> [Example 1] As a tobacco filler, glycerin (15 g / 100 g) and propylene glycol (4 g / 100 g) were mixed with shredded tobacco sheets to prepare a tobacco sheet filler. A high-speed rolling machine was used to roll the tobacco into a cigarette paper (Nippon Paper Papylia, basis weight 35 g / m 2 The tobacco filler was rolled up to a thickness of 52 μm. The weight of each piece was 1.02 g, the circumference of the winding was 22 mm, and the length of the winding was 80 mm. The rolled tobacco rods were stored in plastic airtight containers, 200 per level. The stored tobacco rod was cut to a length of 20 mm. Then, the tobacco rod, a 20 mm long paper tube, a center hole segment (5.8Y35000) having a 6 mm long hollow hole (diameter 4.5 mm), and two filter segments consisting of a 7 mm long filter filled with 7 mm long cellulose acetate fibers and having activated carbon dispersed substantially uniformly in the cellulose acetate fibers and a filter made of cellulose acetate fibers of the same length were wrapped with the tipping paper prepared above to produce a non-combustion heat-not-burn tobacco without openings. Then, 17 holes were opened at a position 5.5 mm from the boundary between the cooling segment and the filter segment toward the cooling segment side (25.5 mm from the mouth end of the non-combustion heat-not-burn tobacco) so as to be concentric in the circumferential direction of the cooling segment and to penetrate both the tipping paper and the cooling segment, thereby producing the non-combustion heat-not-burn tobacco of Example 1. The amount of activated carbon added to the filter media is 59.7 m2, which is the surface area of ​​activated carbon per unit cross-sectional area. 2 / cm 2The specific amount of added activated carbon was 25 mg per filter medium (length 10 mm). The specific surface area of ​​the added activated carbon was 1350 m 2 / g and the pore volume was 0.71 mL / g. The diameter of the aperture was adjusted so that the air inflow rate from the aperture was 72% by volume when inhaling at 17.5 ml / sec with a Borgwaldt single-puff automatic smoking machine. This air inflow rate was measured by a method conforming to ISO9512. In all of the examples and comparative examples described below, the diameter of the aperture was adjusted so that the air inflow rate was 72% by volume.

[0085] [Comparative Example 1] A non-combustion heat-not-burn tobacco product of Comparative Example 1 was produced in the same manner as in Example 1, except that activated carbon was not added to the filter medium.

[0086] [Comparative Example 2] The amount of activated carbon added to the filter media is determined based on the surface area of ​​the activated carbon per unit cross-sectional area of ​​12.0 m 2 / cm 2 A non-combustion heat-not-burn tobacco product of Comparative Example 2 was produced in the same manner as in Example 1, except that the additive was added so as to obtain a concentration of 3.5 mg per filter medium (length 7 mm).

[0087] [Comparative Example 3] The amount of activated carbon added to the filter media is calculated based on the surface area of ​​activated carbon per unit cross-sectional area of ​​83.6 m 2 / cm 2 A non-combustion heat-not-burn tobacco product of Comparative Example 3 was produced in the same manner as in Example 1, except that the additive was added so as to obtain a concentration of 24.5 mg per filter medium (length 7 mm).

[0088] [Comparative Example 4] The amount of activated carbon added to the filter media is calculated based on the surface area of ​​activated carbon per unit cross-sectional area of ​​107.4 m 2 / cm 2A non-combustion heat-not-burn tobacco product of Comparative Example 4 was produced in the same manner as in Example 1, except that the additive was added so as to obtain a concentration of 31.5 mg per filter medium (length 7 mm).

[0089] <Evaluation of delivery volume> The non-combustion heat-not-burn tobacco products prepared in Example 1 and Comparative Examples 1 and 2 were subjected to a smoking test, and the delivery amount of the components generated by heating was evaluated. The smoking test was conducted under the following conditions based on Canadian Intense Smoking (CIR). An electric heating device that heats the periphery was used, and after inserting a non-combustion heated tobacco, the heater temperature was raised to 295°C within 21 seconds, lowered to 260°C within 5 seconds, and maintained at 260°C until the end of the evaluation (about 330 seconds). After this, the smoking test was performed using a Borgwaldt single-puff automatic smoking machine under the conditions of a flow rate of 55cc / 2 seconds and a smoking interval of 30 seconds. At this time, the opening in the cooling segment was set to be 25.5 mm from the end of the mouth end side of the area where the non-combustion heated tobacco and the electric heating device contact. The mainstream smoke generated in the smoking test was collected on a Cambridge pad, and after 12 puffs, the Cambridge pad was removed and extracted with 10 mL of ethanol, and the amount of each component in the mainstream smoke collected at each puff was measured using GC-MS. The amounts of each of the components, nicotine, glycerin and propylene glycol, in the mainstream smoke obtained from the above measurements for the non-combustion heat-not-burn tobacco products in Examples 1 and 2 and Comparative Examples 1 and 2 are shown in FIGS.

[0090] From Figures 7 to 9 above, the amount of activated carbon added to the filter media varies depending on the surface area of ​​the activated carbon per unit cross-sectional area from 0 to 59.7 m. 2 / cm 2 It was found that the non-combustion heated tobacco products according to Examples 1 and 2, in which nicotine, glycerin, and propylene glycol were added so as to obtain a concentration of 0 to 17.5 mg per filter medium (length 7 mm), delivered sufficient amounts of nicotine, glycerin, and propylene glycol. On the other hand, the surface area of ​​activated carbon per unit cross-sectional area was 83.6 to 107.4 m2 / cm 2 In Comparative Examples 1 and 2, in which nicotine and propylene glycol were added so as to obtain a concentration of 24.5 or 31.5 mg per filter medium (length 7 mm), the delivery amounts of nicotine and propylene glycol were insufficient.

[0091] <Sensory evaluation> In addition to the non-combustion heated tobacco of Example 1 and Comparative Examples 1 to 4, the non-combustion heated tobacco of Examples 2 to 4, which were prepared by adjusting the amount of activated carbon added as shown in Table 1, were inserted into a commercially available electric heating device and used by panelists. The panelists evaluated each of the items of unpleasant feeling, tobacco flavor, and charcoal odor felt at that time. The number of panelists was 10, and the evaluation score was the average score. The evaluation criteria were 1: functioning in a bad direction, 2: functioning in a slightly bad direction, 3: unchanged, 4: functioning in a slightly good direction, and 5: functioning in a very good direction. The results are shown in Table 1 below. The 10 panelists were thoroughly trained using several types of samples, and it was confirmed that the scores and evaluation thresholds for "unpleasant feeling," "tobacco flavor," and "charcoal odor" were almost equal and unified among the panelists. The scores for each item were rounded off to the nearest whole number. [Table 1]

[0092] From the results in Table 1, it was found that Examples 1 to 4 also had better results in the sensory evaluation than Comparative Examples 1 to 4, and were able to impart a desired flavor sensation to users.

[0093] From the above experimental results, it can be seen that the present invention can provide non-combustion heated tobacco and electrically heated tobacco products that can deliver the components generated by heating to the user in the desired amounts and provide the user with the desired flavor sensation. [Explanation of symbols]

[0094] 10 Non-combustion heated tobacco products 11 Tobacco rod section 12 Cooling Segment 13 Filter Segments 13a Filter media with added activated carbon 13b Filter media without added activated carbon 14 Mouthpiece section 15 Tipping Paper V hole 20 Electrically heated devices 21 Heater parts 22 Battery unit 23 Control Unit 24 skeleton 30 Electrically heated tobacco products

Claims

1. A rod-shaped non-combustion heat-not-burn tobacco product comprising a tobacco rod portion and a mouthpiece portion, The mouthpiece portion includes a cooling segment and a filter segment including a filter medium, the tobacco rod portion and the cooling segment are adjacent to each other, activated carbon is added to the filter medium, and the amount of activated carbon added per non-combustion heat-not-burn tobacco is expressed by the following formula (1): BET specific surface area of ​​activated carbon × weight of activated carbon / cross-sectional area of ​​filter medium in a direction perpendicular to the air flow direction (1). The value represented by is 15.0 m ２ / cm ２ Above 80.0m ２ / cm ２ The following is added: The amount of the activated carbon added is 5 mg / cm or more and 50 mg / cm or less per unit length in the air passage direction of the filter medium, A non-combustion heating tobacco, wherein the amount of activated carbon added is 5.0 to 17.5 mg.

2. 2. The non-combustion heated tobacco product according to claim 1, wherein openings are provided concentrically in the circumferential direction of the cooling segment, and the openings are present in an area 4 mm or more and 7 mm or less in the direction of the cooling segment from the boundary between the cooling segment and the filter segment.

3. The non-combustion heated tobacco according to claim 1 or 2, wherein the filter segment is composed of a center hole segment having one or more hollow portions and a filter medium.

4. The BET specific surface area of ​​the activated carbon is 1100 m ２ / g or more, 1600m ２ The non-combustion heating tobacco according to any one of claims 1 to 3, wherein the viscosity is 0.05 to 0.5 μm.

5. An electrically heated tobacco product comprising: an electrically heated device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member; and the non-combustion heated tobacco product according to any one of claims 1 to 4, which is inserted so as to come into contact with the heater member.

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