Non-combustion heated tobacco products and electrically heated tobacco products

Abstract

This non-combustion heating-type cigarette having a rod shape comprises a cigarette rod part and a mouthpiece part, wherein: the mouthpiece part includes a cooling segment and a filter segment having a filtering material; in the axial direction of the non-combustion heating-type cigarette, the cooling segment is adjacent to and sandwiched between the cigarette rod part and the filter segment; an opening is provided concentrically in the circumferential direction of the cooling segment; and the opening is present in a region which is at least 4 mm away in the direction toward the cooling segment from the boundary of the cooling segment and the filter segment.

Description

[Technical field]

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

[0002] In recent years, electrically heated tobacco products consisting of non-combustion heated tobacco that is inserted into an electrically heated device for use have been developed as an alternative to cigarettes (Patent Document 1). Such non-combustion heated tobacco generally comprises a tobacco rod in which tobacco shreds and materials that produce flavor components are wrapped in cigarette paper, a mouthpiece for inhaling the components generated 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.

[0003] The delivery of components generated by heating is considered an important characteristic not only for electrically heated tobacco products but also for cigarettes, and has been widely studied. Patent Document 2 discloses a cigarette in which a volatile containing agent contained in a polysaccharide gel is added to a tobacco rod to increase the amount of volatile flavoring contained in the smoke at the first puff, prevent the volatile flavoring from seeping out during storage, and maintain a desired amount of volatile flavoring delivered when smoking after storage. Patent Document 3 discloses a cigarette that can reduce undesirable components produced by combustion and deliver a good flavor by adding an adsorbent or liquid absorbent to a filter arranged downstream of the tobacco rod. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2015-508676 [Patent Document 2] International Publication No. 2011 / 118040 [Patent Document 3] International Publication No. 2008 / 146548 Summary of the Invention [Problem to be solved by the invention]

[0005] The above patent documents 2 and 3 discloses a technique for adjusting the amount of volatile components and achieving desired component delivery by adding a specific material to a tobacco rod or filter. Compared to such techniques for improving the delivery of components generated by heating from the viewpoint of materials contained in tobacco, there has been little research into techniques for improving the delivery of the components from the viewpoint of tobacco structure, and there is room for improvement. In addition, electrically heated tobacco products are heated to a lower temperature during use and produce smaller amounts of ingredients than cigarettes, so improvements in ingredient delivery are particularly desirable. Therefore, an objective of the present invention is to provide a non-combustion heated tobacco product and an electrically heated tobacco product that have improved delivery of components generated by heating. [Means for solving the problem]

[0006] After extensive research, the inventors discovered that the above problems could be solved by providing an opening in the cooling section of the mouthpiece and arranging the opening in a specific area, and thus arrived at the present invention.

[0007] 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, and the cooling segment is sandwiched adjacent to the tobacco rod portion and the filter segment with respect to an axial direction of the non-combustion heat-not-burn tobacco product, and A non-combustion heat-not-burn tobacco product, wherein openings are provided concentrically around the periphery of the cooling segment, and the openings are present in an area extending 4 mm or more from the boundary between the cooling segment and the filter segment toward the cooling segment. [2] The opening is present in an area of ​​24 mm or more from the mouth end of the non-combustion heated tobacco product toward the cooling segment. [1] A non-combustion heated tobacco product as described above. [3] The opening is provided between the boundary between the cooling segment and the filter segment and the cooling segment. 7 mm or less in the direction of the [1] or [2] A non-combustion heated tobacco product as described above. [4] The axial length of the cooling segment is 20 mm or more, and the openings are present in an area extending from the boundary between the cooling segment and the tobacco rod portion to a region extending 5 mm or more toward the cooling segment. [1] or [2] A non-combustion heated tobacco product as described above. [5] An electric heating device including a heater member, a battery unit as a power source for the heater member, and a control unit for controlling the heater member, and the electric heating device is inserted so as to come into contact with the heater member. [1]~[4] Either Crab An electrically heated tobacco product comprising the non-combustion heated tobacco product described above. [6] The opening is located closer to the suction end than the end of the region of the cooling segment that contacts the device. [5] An electrically heated tobacco product as described in claim 1. Effect of the Invention

[0008] According to the present invention, it is possible to provide non-combustion heated tobacco and electrically heated tobacco products with improved delivery of components produced by heating. [Brief description of the drawings]

[0009] [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 menthol delivered in an example. [Figure 8] 1 is a graph showing the amount of nicotine delivered in an example. [Figure 9] 1 is a graph showing the amount of propylene glycol delivered in an example. [Figure 10] 1 is a graph showing the amount of glycerin delivered in an example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] 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.

[0011] <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, and the cooling segment is sandwiched adjacent to the tobacco rod portion and the filter segment with respect to an axial direction of the non-combustion heat-not-burn tobacco product, and The cooling segment has concentric openings in the circumferential direction, and the openings are located in an area 4 mm or more away from the boundary between the cooling segment and the filter segment toward the cooling segment, in this 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.

[0012] 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 around which these are wrapped. The mouthpiece portion 14 includes a cooling segment 12 and a filter segment 13 including a filter material. 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 is provided concentrically in the circumferential direction of the cooling segment 12.

[0013] The apertures V provided in the cooling segment 12 of the non-combustion heat-not-burn tobacco 10 shown in Fig. 1 are generally holes for promoting the inflow of air from the outside caused by the user's inhalation, and this inflow of air can lower the temperature of the components and air flowing in from the tobacco rod portion 11. Furthermore, the apertures V in this embodiment are 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, and this configuration can improve the cooling ability to lower the temperature of the components and air generated by heating, and furthermore, can suppress the retention of the components and air in the cooling segment, thereby improving the amount of components delivered. In addition, examples of components generated by heating include flavor components derived from flavorings, nicotine or tar derived from tobacco leaves, and aerosol components derived from an aerosol base material, etc. In this specification, the aerosol base material is a base material for generating an aerosol.

[0014] 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 heated tobacco product 10 in the longitudinal direction is not particularly limited, and is, for example, typically 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more, and is typically 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 heated tobacco product 10 is not particularly limited, and is, for example, typically 5 mm or more, preferably 5.5 mm or more, and typically 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less. The ratio of the lengths of the cooling segment and the filter segment in the longitudinal direction of the non-combustion heat-not-burn tobacco (cooling segment:filter segment) is not particularly limited, but from the viewpoint of the amount of flavor delivered and an appropriate aerosol temperature, it is usually 0.60-1.40:1.40-0.60, preferably 0.80-1.20:0.80-1.20, more preferably 0.85-1.15:0.85-1.15, more preferably 0.90-1.10:0.90-1.10, and even more preferably 0.95-1.05:0.95-1.05. By setting the ratio of the lengths of the cooling segment and the filter segment within the above range, it is possible to obtain the cooling effect, the effect of suppressing losses due to adhesion of the generated steam and aerosol to the inner wall of the cooling segment, and the effect of obtaining a good flavor and flavor intensity by balancing the air volume and flavor adjustment functions of the filter. In particular, if the cooling segment is made longer, the particulation of aerosols and the like is promoted to achieve a good flavor, but if it is too long, the passing substances will adhere to the inner wall.

[0015] Although there is no particular restriction on the airflow resistance in the longitudinal direction of each non-combustion heated tobacco product 10, from the viewpoint of ease of smoking, it is usually set to 8 mmH 2 O or more, 10mmH 2 O or more is preferable, and 12 mmH 2 More preferably, it is 100 mmH or more. 2 O or less, 80mmH 2 It is preferable that the temperature is 60 mmH or less. 2 It is more preferable that the value is 0 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 (17.5 cc / min) from one end face (first end face) to the other end face (second end face) in a state where no air is passing through the sides of the non-combustion heated tobacco product 10. The unit is generally mmH 2 It is represented by O. It is known that the relationship between the airflow resistance and the length of a non-combustion heated tobacco is proportional within the commonly used length range (5 to 200 mm), and if the length is doubled, the airflow resistance of the non-combustion heated tobacco doubles.

[0016] [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 so 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 13 and the cooling segment 12 will be described in detail below.

[0017] (Filter segment) The filter segment 13 is not particularly limited as long as it includes a filter medium and has a general filter function. Examples of general filter functions include 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.

[0018] 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.

[0019] 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 mm or more and 35 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. The shape and dimensions of the filter medium can be appropriately adjusted so that the shape and dimensions of the filter segment 13 fall within the above ranges.

[0020] The airflow resistance per 120 mm of the axial length of the filter segment 13 is not particularly limited, but is usually 40 mmH 2 O or more, 300mmH 2 O or less, 70mmH 2 O or more, 280mmH 2 It is preferable that the temperature is less than 90 mmH. 2 O or more, 260mmH 2 It is more preferable that the value is 0 or less. The airflow resistance is measured according to the ISO standard method (ISO6565) using, for example, 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 allowed to flow 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) of the filter segment 13 in a state in which no air permeates through the side faces of the filter segment 13. The unit is generally mmH 2 It is represented by O. 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 normally used (lengths of 5 to 200 mm), and if the length is doubled, the airflow resistance of the filter segment 13 doubles.

[0021] The filter material constituting the filter segment 13 may be, for example, one produced by the production method described below, or a commercially available product. Furthermore, the embodiment of the filter segment 13 is not particularly limited, and it can be a plain 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.

[0022] 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. In manufacturing the filter segment 13, the adjustment of the airflow resistance and the addition of additives (known adsorbents and flavors (eg, menthol), granular activated carbon, flavor retention materials, etc.) to the filter medium can be appropriately designed.

[0023] 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 part 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.

[0024] The density of the filter medium 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:

[0025] The filter medium may include a crushable additive release container (e.g., capsule) that includes a crushable shell such as gelatin. The capsule (also called "additive release container" in the art) may have any known form, for example, a crushable additive release container that includes a crushable shell such as gelatin. In this case, when the capsule is broken by a tobacco product user before, during, or after use, it releases a liquid or substance (usually a flavoring agent) contained in the capsule, which is then transferred to tobacco smoke during use of the tobacco product and to the surrounding environment after use. The form of the capsule is not particularly limited, and may be, for example, a frangible capsule, and its shape is preferably a sphere. The additive contained in the capsule may include any of the additives described above, and preferably includes flavorings and activated carbon. In addition, one or more materials that help filter smoke may be added as additives. The form of the additive is not particularly limited, and is usually a liquid or solid. The use of capsules containing additives is well known in the art. Frangible capsules and methods for producing them are well known in the art. The flavoring agent may be, for example, menthol, spearmint, peppermint, fenugreek, or clove, or medium chain triglycerides (MCT), etc. The flavoring agent may be menthol, or menthol, etc., or a combination thereof.

[0026] From the viewpoint of improving strength and structural rigidity, the filter segment 13 may be provided with a wrapper (filter plug wrapper) for wrapping the above-mentioned filter medium and the like. 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 segment 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.

[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, 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) covering the filling layer. For example, the center hole segment is composed of a filling layer having a hollow part and an inner plug wrapper covering 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 having 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 mass% or more and 20 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] (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). As shown in Fig. 2, the cooling segment 12 is provided with openings V (also referred to as "ventilation filters (Vf)" in this technical field) arranged circumferentially and concentrically. Note that, although eight openings V are arranged concentrically in Fig. 2, the number of openings V is not limited to this. Furthermore, the openings V are present in an area 4 mm or more in the direction of the cooling segment from the boundary between the cooling segment and the filter 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 V By positioning the cooling segment within a region 4 mm or more from the boundary between the cooling segment and the filter segment toward the cooling segment, not only can the cooling capacity be improved, but also the retention of components generated by heating within the cooling segment can be 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.

[0031] The openings are preferably arranged so that the air inflow rate from the openings when inhaling at 17.5 ml / sec with an automatic smoking machine (the volumetric rate of air inflowing from the openings when the volumetric rate of air inhaled from the mouth end is taken as 100 volume%) is 10 volume% or more and 90 volume% or less, preferably 50 volume% or more and 80 volume% or less, and more preferably 55 volume% or more and 75 volume% or less. 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.

[0032] From the viewpoint of improving the delivery of the component generated by heating, the region in which the opening V exists is not particularly limited as long as it is a region of 4 mm or more from the boundary between the cooling segment 12 and the filter segment 13 toward the cooling segment side; however, from the viewpoint of further improving the delivery of the component, a region of 4.5 mm or more is preferable, a region of 5 mm or more is more preferable, and a region of 5.5 mm or more is even more preferable; and from the viewpoint of ensuring the cooling function, a region of 15 mm or less is preferable, a region of 10 mm or less is more preferable, and a region of 7 mm or less is even more preferable. 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 ​​24 mm or more from the mouth end of the non-combustion heated tobacco toward the cooling segment, preferably an area of ​​24.5 mm or more, preferably an area of ​​25 mm or more, and more preferably an area of ​​25.5 mm or more; and from the viewpoint of ensuring the cooling function, it is preferably an area of ​​35 mm or less, more preferably an area of ​​30 mm or less, and even more preferably an area of ​​27 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 opening V exists is preferably a region of 5 mm or more in the direction from the boundary between the cooling segment 12 and the tobacco rod portion 11 toward the cooling segment, more preferably a region of 10 mm or more, and even more preferably a region of 13 mm or more, and from the viewpoint of improving the delivery of the components generated by heating, it is preferably a region of 16 mm or less, more preferably a region of 15.5 mm or less, even more preferably a region of 15 mm or less, and particularly preferably a region of 14.5 mm or less.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] [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 filler is not particularly limited, and the first tobacco filler, the second tobacco filler, or the third tobacco filler described below can be used. In the present specification, molded products of dried tobacco such as tobacco shreds, tobacco sheets, tobacco granules, etc. described below may be simply referred to as "dried tobacco leaves". 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.

[0038] The length of the tobacco rod portion 11 in the longitudinal direction may 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] The content of dried tobacco leaves in the tobacco rod portion 11 is not particularly limited, but may be 200 mg or more and 800 mg or less per rod portion, and preferably 250 mg or more and 600 mg or less per rod portion. This range is particularly suitable for a tobacco rod portion having a circumference of 22 mm and a length of 20 mm.

[0040] (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. In addition, the width of the tobacco shreds is preferably 0.5 mm or more and 2.0 mm or less in terms of packing the tobacco rod.

[0041] 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, or 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."

[0042] 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.

[0043] The first tobacco filling may contain 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.

[0044] 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-cyclohexa Examples of the fragrance include ethyl-2-(p-menthane-3-carboxamide)acetate (WS-5), and ethyl-2-(p-menthane-3-carboxamide)acetate (WS-5), and menthol is particularly preferred. These fragrances may be used alone or in combination.

[0045] 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.

[0046] 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.

[0047] (2) Second tobacco filler The second tobacco filler is composed of a tobacco sheet filled in the filler. The number of tobacco sheets may be one, or two or more.

[0048] 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.

[0049] 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 located at approximately the same position. The number of tobacco sheets is not particularly limited, but examples include 2, 3, 4, 5, 6, or 7 sheets. 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.

[0050] 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.

[0051] 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.

[0052] 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.

[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 produced 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. 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.

[0056] (3) Third tobacco filling material 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.

[0057] 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.

[0058] 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 may also typically contain moisture in an amount such that the value of loss on drying is 5% by weight or more and 17% by weight or less. Loss on drying refers to the change in weight before and after drying when a part of a sample is taken for measurement and the sample is completely dried by evaporating all the moisture in the taken sample (for example, when dried at a constant temperature (105°C) for 15 minutes), and specifically refers to the ratio (wt%) of the combined amount of the moisture content of the sample and the amount of the volatile components that volatilize under the above drying conditions to the weight of the sample. In other words, 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

[0059] 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.

[0060] 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.

[0061] 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 generates an aerosol smoke. The aerosol base is composed of a polyhydric alcohol, which may include glycerin, propylene glycol, sorbitol, xylitol, or 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 also 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), (d) and (e) 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).

[0062] 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.

[0063] 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.

[0064] 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.

[0065] (Scroll 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.

[0066] 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.

[0067] 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 mm to 70 mm, the length of the other side can be 15 mm to 28 mm, the preferred length of the other side can be 22 mm to 24 mm, and the more preferred length can be 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 mm to 60 mm, and the length of the other side may be 15 mm to 28 mm.

[0068] 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.

[0069] 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.

[0070] 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).

[0071] [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.

[0072] 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 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 more than 0 Coresta units and 10,000 Coresta units or less. The air permeability is a value measured in accordance with ISO 2965:2009, and is the value of 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 Coresta Unit, 1 C.U.) is cm at 1 kPa. 3 / (min cm 2 ).

[0073] The tip paper 15 may contain fillers other than the above-mentioned 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.

[0074] 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.

[0075] 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.

[0076] The configuration of the non-combustion heated tobacco product according to this embodiment can be used in an electrically heated tobacco product, which will be described later, but can also be applied to cigarettes (paper cigarettes) that involve combustion.

[0077] [Manufacturing method of non-combustion heated tobacco] The method for producing the above-mentioned non-combustion heating tobacco is not particularly limited, and any known method can be applied. For example, the tobacco rod portion and the mouthpiece portion can be wrapped in tip paper to produce the tobacco.

[0078] <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.

[0079] 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 μm to 225 μm) of a heat-resistant polymer such as polyimide. The flat heater is a rigid flat heater (thickness: about 200 μm 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 μm 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 polygon with rounded corners, 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.

[0080] 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.

[0081] 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

[0082] 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.

[0083] <Production of non-combustion heated tobacco> [Example 1] Tobacco filler was prepared by mixing shredded tobacco sheets with 7 mg of menthol per cigarette (7 mg per cigarette of non-combustible heat-not-burn tobacco obtained in the end), 15 g / 100 g of glycerin, and 4 g / 100 g of propylene glycol. A high-speed rolling machine was used to roll the cigarette paper (Nippon Paper Papylia, basis weight 35 g / m2). 2 The tobacco filler was rolled up to a thickness of 52 μm. The weight per piece was 0.8g, the circumference of the winding was 22mm, and the length of the winding was 68mm. 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 (cooling segment), a center hole filter having a 12 mm long through hole (diameter 4.5 mm), and a filter segment consisting of a filter filled with cellulose acetate fibers having a length of 8 mm were wrapped with the tipping paper prepared above to produce a non-combustion heat-not-burn tobacco without openings. Then, 17 holes were drilled 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 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.

[0084] [Example 2] A non-combustion heat-not-burn tobacco product of Example 2 was produced in the same manner as in Example 1, except that the target to which menthol was added was changed from shredded tobacco sheets to filter segments.

[0085] [Comparative Example 1] The non-combustion heat-not-burn tobacco of Comparative Example 1 was produced using the same method as in Example 1, except that the position of the opening was changed from the boundary between the cooling segment and the filter segment to a position 2 mm toward the cooling segment (22 mm from the mouth end of the non-combustion heat-not-burn tobacco).

[0086] [Comparative Example 2] A non-combustion heat-not-burn tobacco product of Comparative Example 2 was produced in the same manner as in Comparative Example 1, except that the target to which menthol was added was changed from shredded tobacco sheets to filter segments.

[0087] <Evaluation of delivery volume> The non-combustion heat-not-burn tobacco products prepared in Examples 1 and 2 and Comparative Examples 1 and 2 were subjected to a smoking test, and the delivery amount of components generated by heating was evaluated. The smoking test was conducted using the Canadian Intense Regime The test was carried out under the following conditions, with reference to (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 menthol, nicotine, propylene glycol, and glycerin in the mainstream smoke obtained from the above measurements for the non-combustion heated tobacco products of Examples 1 and 2 and Comparative Examples 1 and 2 are shown in Tables 1 and 2 below, and Figures 7 to 10.

[0088] [Table 1]

[0089] [Table 2]

[0090] From the above Tables 1 and 2 and Figures 7 to 10, it was found that the non-combustion heat-not-burn cigarettes according to Examples 1 and 2, in which the openings were arranged at a position 5.5 mm from the boundary between the cooling segment and the filter segment toward the cooling segment, delivered greater amounts of nicotine, propylene glycol, and glycerin than the non-combustion heat-not-burn cigarettes according to Comparative Examples 1 and 2, in which the openings were arranged at a position 2 mm toward the cooling segment. In addition, when menthol was added to the filter, it was confirmed that the delivery improvement effect due to the difference in the position of the openings was observed.

[0091] From the above experimental results, it can be seen that the present invention can provide non-combustion heated tobacco and electrically heated tobacco products with improved delivery of components produced by heating. [Explanation of symbols]

[0092] 10 Non-combustion heated tobacco products 11 Tobacco rod section 12 Cooling Segment 13 Filter Segments 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 cooling segment is sandwiched between the tobacco rod portion and the filter segment in an axial direction of the non-combustion heat-not-burn tobacco, and the axial length of the cooling segment is 15 mm or more; and A non-combustion heated tobacco product, comprising openings provided concentrically in the circumferential direction of the cooling segment, the openings being located in an area extending from the boundary between the cooling segment and the filter segment to a region extending from 5.5 mm to 7 mm in the direction toward the cooling segment.

2. The non-combustion heat-not-burn tobacco according to claim 1 , wherein the aperture is present in an area of ​​24 mm or more from the mouth end of the non-combustion heat-not-burn tobacco toward the cooling segment.

3. 3. The non-combustion heated tobacco according to claim 1 or 2, wherein the axial length of the cooling segment is 20 mm or more, and the opening is present in an area 5 mm or more in the direction toward the cooling segment from the boundary between the cooling segment and the tobacco rod portion.

4. The non-combustion heated tobacco product according to claim 1 or 2, wherein the filter segment further comprises a flavoring.

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.

6. The electrically heated tobacco product according to claim 5 , wherein the opening is located closer to the mouth end than the end of the cooling segment that is in contact with the device.

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