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

Abstract

The present invention addresses the problem of providing a non-combustion type flavor inhalation article comprising a filter capable of stably holding the position of a capsule while maintaining low filtration.　The non-combustion type flavor inhalation article comprises an aerosol source unit, a cooling unit, and a filter unit, wherein the filter unit includes a first filter segment, the first filter segment includes a filter medium and a capsule, the filter medium includes a tow containing a filament with a C-shaped cross-section, and at least one of the capsules is disposed at a position within 15 mm from an exposed end closest to the capsule side out of exposed ends on the side of a mouthpiece of the filter unit.

Description

Non-burning flavor inhalation article and non-burning flavor inhalation system

[0001] The present invention relates to a non-burning flavor inhalation article and a non-burning flavor inhalation system.

[0002] Non-combustion flavor inhalation articles (heat-not-burn tobacco products) generate less flavor components than conventional (combustion-type) cigarettes, and therefore require filters with low filtration to deliver flavor to the user (Patent Document 1).

[0003] On the other hand, in non-combustion flavor inhalation articles, a capsule (breakable capsule) may be placed in the filter to change the flavor and taste. When a capsule is placed in the filter, it is necessary to ensure that the capsule position is consistent during manufacturing (Patent Document 2).

[0004] International Publication No. 2020 / 012633 International Publication No. 2020 / 059103

[0005] In light of these circumstances, the inventors of the present application conducted extensive research and found that low-filtration filters generally tend to have a low tow filling amount, which is a filtering material, and that if a breakable capsule is placed in such a low-filtration filter, the capsule position will move when the user tries to break the breakable capsule, making it difficult to break the capsule. On the other hand, they also found that increasing the tow filling amount to stabilize the capsule position will increase the filtration rate. An object of the present invention is to provide a non-combustion flavor inhalation article including a filter that can maintain low filtration while stably maintaining the capsule position.

[0006] As a result of intensive research to solve the above problems, the inventors have found that the above problems can be solved by a filter medium including a tow containing filaments with a C-shaped cross section, and by arranging at least one of the capsules at a specific position, and have thus completed the present invention. Specific aspects of the present invention are as follows:

[0007] [1] A non-burning flavor inhalation article comprising an aerosol source section, a cooling section, and a filter section, wherein the filter section comprises a first filter segment, the first filter segment comprises a filter medium and a capsule, the filter medium comprises a tow containing filaments having a C-shaped cross section, and at least one of the capsules is disposed within 15 mm of the exposed end of the filter section closest to the capsule among the exposed ends of the filter section on the mouthpiece side. [2] The packing density of the tow is 0.117 mg / mm ３ [3] The non-combustion type flavor inhalation article according to [1], wherein the packing density of the tow is 0.125 mg / mm ３ [4] The non-combustion flavor inhalation article according to [1] or [2], wherein the airflow resistance per 120 mm of the axial length of the first filter segment is 255 mmH or less. ２ [5] The filament denier of the filaments contained in the tow is 5 to 12, and the total denier of the filaments contained in the tow / filter cross-sectional area is 600 to 900 denier / mm ２ [6] The non-burning flavor inhalation article according to any one of [1] to [4], wherein the filter portion further comprises a second filter segment, and the second filter segment is disposed upstream of the first filter segment. [7] The non-burning flavor inhalation article according to any one of [1] to [6], wherein the axial length of the first filter segment is 15 mm or less. [8] The non-burning flavor inhalation article according to any one of [1] to [7], wherein the aerosol source portion comprises a tobacco filler. [9] A non-burning flavor inhalation system comprising the non-burning flavor inhalation article according to any one of [1] to [8].

[0008] The non-burning flavor inhalation article of the present invention can maintain a stable position of the capsule in the filter while maintaining low filtration.

[0009] Fig. 1 is a schematic diagram of a non-burning type flavor inhalation system 200. Fig. 2 is a perspective view of a non-burning type flavor inhalation article 100. Fig. 3 is a diagram illustrating the internal structure of the non-burning type flavor inhalation article 100. Fig. 4 is a diagram illustrating the internal structure of a non-burning type flavor inhalation device 30. Fig. 5 is a diagram illustrating a method for evaluating positional deviation of a breakable capsule.

[0010] The non-burning type flavor inhalation article and the non-burning type flavor inhalation system of the present invention will be described below.

[0011] 1. Non-burning Flavor Inhalation Article and Non-burning Flavor Inhalation System The non-burning flavor inhalation article of the present invention comprises an aerosol source section, a cooling section, and a filter section, wherein the filter section comprises a first filter segment, the first filter segment comprising a filter material and a capsule, the filter material comprising a tow containing filaments having a C-shaped cross section, and at least one of the capsules is disposed within 15 mm of the exposed end closest to the capsule among the exposed ends of the filter section on the mouthpiece side. By having the above configuration, the non-burning flavor inhalation article of the present invention can maintain a stable capsule position in the filter while maintaining low filtration.

[0012] Here, embodiments of a non-combustion type flavor inhalation article and a non-combustion type flavor inhalation system according to the present invention will be described with reference to the drawings. Note that the dimensions, materials, shapes, relative positions, etc. of the components described in the present embodiments are merely examples. For example, in the present embodiments, a non-combustion type flavor inhalation article containing a tobacco filler as a flavor source will be described as an example of a non-combustion type flavor inhalation article, but the non-combustion type flavor inhalation article may not contain a tobacco filler and may contain other flavor components.

[0013] First Embodiment FIG. 1 is a schematic diagram of a non-combustion flavor inhalation system 200 according to an embodiment. FIG. 2 is a perspective view of a non-combustion flavor inhalation article 100 according to an embodiment, and FIG. 3 is a diagram illustrating the internal structure of the non-combustion flavor inhalation article 100 according to an embodiment. In FIGS. 1 to 3, the left-right direction of the non-combustion flavor inhalation article 100 or the non-combustion flavor inhalation device 30 into which the non-combustion flavor inhalation article 100 is inserted is indicated as the X direction, the up-down direction is indicated as the Y direction, and the depth direction is indicated as the Z direction. This also applies to the subsequent figures. These directions are merely examples for the sake of convenience and do not limit the elements of the non-combustion flavor inhalation system 200. For example, the elements of the non-combustion flavor inhalation system 200 are not limited to being arranged in the directions shown in the figures.

[0014] The non-burning type flavor inhalation system 200 includes a non-burning type flavor inhalation article 100 and a non-burning type flavor inhalation device 30 that heats an aerosol source portion 110 of the non-burning type flavor inhalation article 100. The non-burning type flavor inhalation article 100 is accommodated in a accommodating cavity 313 of the accommodating portion 310 through an insertion port 3A of the non-burning type flavor inhalation device 30 so as to be freely insertable into and removable from the accommodating cavity 313.

[0015] When the non-combustion type flavor inhalation device 30 is used by a user, the non-combustion type flavor inhalation article 100 is inserted into the storage cavity 313, and in this state, the heater provided in the storage section 310 is made to generate heat, which heats the tobacco filling inside the non-combustion type flavor inhalation article 100, thereby generating an aerosol containing tobacco components, which is then inhaled by the user.

[0016] [Non-burning Flavor Inhalation Article] The non-burning flavor inhalation article 100 according to this embodiment has a substantially cylindrical rod shape. In the example shown in Figures 2 and 3, the non-burning flavor inhalation article 100 includes an aerosol source section 110, a cooling section 120, a filter section 130, and tipping paper 140 that connects these sections together. The cooling section 120 and the filter section 130 are wrapped around the aerosol source section 110 by the tipping paper 140, and are thereby connected coaxially to the aerosol source section 110.

[0017] Reference numeral 101 denotes the mouth end of the non-burning flavor inhalation article 100 (filter portion 130). Reference numeral 102 denotes the tip of the non-burning flavor inhalation article 100 opposite the mouth end 101. The aerosol source portion 110 is disposed on the tip 102 side of the non-burning flavor inhalation article 100. In the example shown in Figures 2 and 3, the non-burning flavor inhalation article 100 has a substantially constant diameter over the entire length from the mouth end 101 along the longitudinal direction (hereinafter also referred to as the axial direction or Z direction) along the tip 102.

[0018] The configuration of the non-combustion type flavor inhalation article 100 is not particularly limited and may be a general embodiment. In the embodiment shown in Fig. 1, the aerosol source section 110, the cooling section 120, and the filter section 130 are each illustrated as a single segment, but each section may be composed of a single segment or multiple segments.

[0019] [Filter Section] The first filter segment included in the filter section may be a segment on the downstream side (the mouthpiece end 101 side) described below. The filter section or the first filter segment included in the non-combustion type flavor inhalation article of the present invention may also be used as a filter section or filter segment for a combustion type cigarette.

[0020] (Filter material) The filter material contained in the first filter segment includes a tow containing filaments having a C-shaped cross section, preferably a tow consisting of filaments having a C-shaped cross section, and more preferably a tow consisting of filaments having a C-shaped cross section. The filaments having a C-shaped cross section do not need to have a perfect C-shaped cross section, but only need to have an approximately C-shaped cross section. Filaments having an approximately C-shaped cross section include, for example, filaments having a hollow cross section including a hollow core and an outer periphery covering the core, with an opening formed in the outer periphery connecting the core to the outside, as described in Patent Document 1. In a filter made of tow, if the cross section of the filaments contained in the tow is Y-shaped or X-shaped, it becomes a high-filtration filter, and if the cross section is R-shaped or C-shaped, it becomes a low-filtration filter. However, it is difficult to produce R-shaped filaments with a uniform shape, which poses manufacturing problems.

[0021] The filaments contained in the tow are not particularly limited and may be synthetic fibers, natural fibers, or a mixture thereof, but are preferably cellulose acetate fibers.

[0022] The packing density of the tow in the first filter segment is not particularly limited, but is preferably 0.117 mg / mm ３ More than 0.118 mg / mm ３ More preferably, 0.119 mg / mm ３ More preferably, 120 mg / mm ３ The most preferable packing density of the tow is 117 mg / mm ３ By setting the above value, the position of the capsule is stabilized. Here, the packing density of the tow is a value obtained by dividing the weight of the tow in the first filter segment by the volume of the first filter segment excluding the wrapper. The volume of the first filter segment excluding the wrapper is a value obtained by multiplying the area calculated from the diameter of the first filter segment, including the thickness of the wrapper, by the length of the first filter segment. Furthermore, the packing density of the tow in the first filter segment is 0.125 mg / mm３ The packing density of the tow is preferably 0.125 mg / mm or less. ３ By setting the tow packing density within the range specified above, stable production can be achieved without excessive packing density. The above numerical ranges for the tow packing density can be combined arbitrarily. Reducing the tow packing density in the first filter segment results in a low filtration filter and makes the filter soft. On the other hand, reducing the tow packing density in the first filter segment too much makes the capsule position unstable. Therefore, by setting the tow packing density in the first filter segment within the above numerical range, the capsule position can be kept stable while maintaining low filtration.

[0023] The filament denier of the filaments contained in the tow is not particularly limited, but is preferably 5 to 12, more preferably 7 to 9. When the packing density of the tow is constant, a larger filament denier results in lower filtration. The total denier of the filaments contained in the tow is not particularly limited, but is preferably 15,000 to 35,000, more preferably 26,000 to 30,000. In particular, it is preferable that the filament denier of the filaments contained in the tow is 7 to 9, and the total denier is 26,000 to 30,000.

[0024] The total denier of the filaments contained in the tow / cross-sectional area of ​​the filter (ratio of the total denier to the cross-sectional area of ​​the filter) is not particularly limited, but is preferably 600 to 900 denier / mm ２ In particular, it is preferable that the filament denier of the filaments contained in the tow is 5 to 12, and the total denier of the filaments contained in the tow / filter cross-sectional area is 600 to 900 denier / mm ２ By doing so, a filter that maintains hardness at low filtration can be obtained.

[0025] The configuration of the filter unit 130 other than the above-described configuration is not particularly limited as long as it functions as a general filter. For example, an acetate filter may be used in which cellulose acetate tow is used as the filter medium 150 and the filter medium 150 is wrapped in a filter wrapper (wrap) 160 in a cylindrical shape. When the filter unit 130 is formed by filling it with cellulose acetate tow, triacetin may be added in an amount of 5 to 10 wt % relative to the weight of the cellulose acetate tow to improve filter hardness. In the example shown in FIG. 2 , the filter unit 130 is composed of a single segment, but the filter unit 130 may also be composed of multiple segments. The filter unit 130 includes the first filter segment described above, and in some cases, may further include a second filter segment disposed upstream of the first filter segment. When the filter unit 130 is composed of multiple segments, for example, a hollow filter such as a center hole may be arranged on the upstream side (the aerosol source unit 110 side) as the upstream segment (second filter segment), and an acetate filter (first filter segment) with a mouthpiece cross section filled with cellulose acetate tow may be arranged on the downstream side (the mouthpiece end 101 side). This configuration prevents unnecessary loss of the generated aerosol and improves the appearance of the non-combustion flavor inhalation article 100. Furthermore, from the perspective of changing the sensation of draw and mouthfeel, the filter unit 130 may also be arranged in a configuration in which an acetate filter is arranged on the upstream side (the aerosol source unit 110 side) and a hollow filter such as a center hole is arranged on the downstream side (the mouthpiece end 101 side). Furthermore, the filter unit 130 may also be arranged in a configuration in which, instead of cellulose acetate tow, an alternative filter is used as the filter material 150, such as a paper filter filled with sheet-like pulp paper. Furthermore, the filter section 130 may further include a third filter segment in addition to the first and second filter segments described above.In this case, an embodiment is also possible in which, in addition to the second filter segment described above, a third filter segment is disposed on the upstream side (the aerosol source 110 side), and an acetate filter (first filter segment) whose mouthpiece cross section is filled with cellulose acetate tow is disposed as the downstream segment (the mouthpiece end 101 side). The first filter segment and the second filter segment, or the first filter segment, the second filter segment, and the third filter segment, may be wrapped with a wrapper to connect them. Furthermore, a tubular segment may be disposed downstream of the first filter segment. The tubular segment may be a cardboard tube or a center-hole filter. Furthermore, another segment other than the tubular segment may be disposed upstream of the first filter segment.

[0026] Typical functions of the filter in the filter section 130 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. Furthermore, in electrically heated tobacco products, which tend to produce fewer components and have a lower tobacco filler filling rate than cigarette products, another important function is to prevent the tobacco filler from falling out while suppressing the filtering function.

[0027] The cross-sectional shape of the filter portion 130 (e.g., the first, second, or third filter segment) is substantially circular, and the diameter of the circle can be varied as needed to suit the size of the product. However, it is typically 4.0 mm to 9.0 mm, preferably 4.5 mm to 8.5 mm, and more preferably 5.0 mm to 8.0 mm. If the cross section is not circular, the above-mentioned diameter refers to the diameter of a circle having the same area as the cross section. The circumferential length of the filter portion 130 (e.g., the first, second, or third filter segment) can be varied as needed to suit the size of the product. However, it is typically 14.0 mm to 27.0 mm, preferably 15.0 mm to 26.0 mm, and more preferably 16.0 mm to 25.0 mm.

[0028] The axial length of the filter portion 130, for example, the first, second, or third filter segment, can be appropriately adjusted according to the size of the product. However, it is typically 5 mm or more and 35 mm or less, and preferably 10.0 mm or more and 30.0 mm or less. The shape and dimensions of the filter material can be appropriately adjusted so that the shape and dimensions of the filter portion 130 fall within the above range. In particular, the axial length of the first filter segment is preferably 25 mm or less, more preferably 15 mm or less, and most preferably 12 mm or less. The axial length of the first filter segment is preferably three times or more the diameter of the capsule. The axial length of the first filter segment can also be 3 mm or more or 9 mm or more. The above-mentioned numerical ranges for the axial length of the first filter segment can be arbitrarily combined. By shortening the axial length of the first filter segment, the overall filtration rate and airflow resistance can be reduced. Furthermore, by shortening the axial length of the first filter segment, the filtration rate and airflow resistance can be maintained low even when the filter segment is configured to include multiple segments. On the other hand, shortening the axial length of the first filter segment makes it difficult to stabilize the position of the capsule, but the configuration of this embodiment makes it possible to stabilize the position of the capsule.

[0029] The airflow resistance per 120 mm of the axial length of the filter portion 130, for example, the first, second or third filter segment, is not particularly limited, but is usually 40 mmH ２ O or more, 300mmH ２ Preferably 0 or less, 70mmH ２ O or more, 280mmH ２ It is more preferable that the pressure is 90 mmH or less. ２ O or more, 260mmH ２It is most preferable that the airflow resistance is 0 or less. The above-mentioned airflow resistance is measured in accordance with the ISO standard method (ISO 6565), for example, using a filter airflow resistance measuring device manufactured by Cerulean Co., Ltd. The airflow resistance of the filter part 130, for example, the first, second or third filter segment, 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) of the filter part 130 in a state where air does not pass through the side faces of the filter part 130. The unit of airflow resistance is generally mmH ２ It can be expressed as 0. It is known that the relationship between the airflow resistance of the filter portion 130 and the length of the filter portion 130 is proportional within the normally used length range (5 mm to 200 mm), and if the length of the filter portion 130 is doubled, the airflow resistance also doubles. In particular, the airflow resistance per 120 mm of axial length of the first filter segment is 255 mmH. ２ The airflow resistance per 120 mm of the axial length of the first filter segment is preferably 242 mmH ２ O or above or 245mmH ２ The above numerical ranges of the airflow resistance can be arbitrarily combined. Furthermore, the packing density of the tow in the first filter segment can be 0.119 mg / mm or more. ３ or more, and the airflow resistance per 120 mm of the axial length of the first filter segment is 245 mmH ２ It can also be set to O or more.

[0030] The density of the filter part 130, particularly the filter segment not containing a capsule therein, of the filter medium 150 is not particularly limited, but is usually 0.10 g / cm ３ Above, 0.25g / cm ３ or less, and 0.11 g / cm ３ Above, 0.24g / cm ３ It is preferable that the density is 0.12 g / cm or less. ３ Above, 0.23g / cm ３It is more preferable that the following is true. From the viewpoint of improving strength and structural rigidity, the filter unit 130 may be provided with a filter wrapper around which a filter medium or the like is wrapped. The form of the filter wrapper is not particularly limited, and it 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. Furthermore, when the filter unit 130 is composed of two or more segments, it is preferable to wrap these two or more segments together with a connecting filter wrapper (outer filter wrapper) in order to connect the segments. It is preferable to wrap these two or more segments together with the filter wrapper. The material of the filter wrapper in the filter unit 130 is not particularly limited, and known materials can be used, and it may also contain a filler such as calcium carbonate.

[0031] The thickness of the filter wrapper 160 is not particularly limited, but is typically 20 μm to 140 μm, preferably 30 μm to 130 μm, and more preferably 30 μm to 120 μm. The basis weight of the filter wrapper 160 is not particularly limited, but is typically 20 gsm to 100 gsm, preferably 22 gsm to 95 gsm, and more preferably 23 gsm to 90 gsm. The filter wrapper may or may not be coated, but is preferably coated with a desired material to impart functions other than strength and structural rigidity.

[0032] When the filter unit 130 includes a center-hole filter and an acetate filter, the center-hole filter and the acetate filter may be connected, for example, by an outer filter wrapper. The outer filter wrapper may be, for example, a cylindrical piece of paper. The aerosol source unit 110, the cooling unit 120, and the filter unit 130 to which the center-hole filter and the acetate filter are connected may also be connected, for example, by tipping paper 140. These connections can be made, for example, by applying glue such as vinyl acetate glue to the inner surface of the tipping paper 140, and then wrapping the aerosol source unit 110, the cooling unit 120, and the filter unit 130 to which the center-hole filter and the acetate filter are connected. These connections may also be made in multiple places using multiple pieces of tipping paper. For example, the aerosol source unit 110 and the cooling unit 120 may be connected in advance with tipping paper (lining paper), and then these may be connected to the filter unit 130 with a liner tipping paper.

[0033] The filter unit 130, particularly the first filter segment, contains a capsule therein. The capsule may be one or more. In the present invention, at least one of the capsules is located within 15 mm of the exposed end of the filter unit closest to the capsule on the mouth side. The capsule is preferably located within 10 mm, more preferably within 5 mm, from the exposed end of the filter unit closest to the capsule on the mouth side. By positioning the capsule within the above numerical range, the first filter segment can be made smaller. The capsule is preferably located 3 mm or more from the exposed end of the filter unit closest to the capsule on the mouth side. The numerical ranges for the capsule position can be arbitrarily combined. The capsule position can be determined using the distance between the exposed end of the filter unit closest to the capsule on the mouth side and the portion of the capsule closest to the exposed end.

[0034] The diameter of the capsule is not particularly limited, but is preferably 3 mm or more, more preferably 3 to 4 mm. The larger the diameter of the capsule, the larger the area around the capsule that is free of filter material, making it more likely to move. Therefore, the larger the diameter of the capsule, the more noticeable the movement of the capsule when a user presses it to crush it.

[0035] The filter unit 130 may include a hollow mouth-end segment downstream of the first filter segment containing the capsule. In this case, the exposed end of the filter unit on the mouth side comprises the mouth-end end of the mouth-end segment and a portion of the mouth-end end of the first filter segment. Even in this case, the exposed end of the filter unit on the mouth side closest to the capsule is the mouth-end end of the first filter segment.

[0036] The capsule may be a crushable additive release container 170 (e.g., a frangible capsule) having a crushable outer shell such as gelatin. The form of the capsule (also referred to as an "additive release container" in the art) is not particularly limited, and any known form may be adopted, for example, a crushable additive release container 170 having a crushable outer shell such as gelatin. The form of the capsule is not particularly limited, and for example, it may be a frangible capsule, preferably spherical in shape. The additive contained in the capsule may include any of the additives described above, and in particular, preferably includes a flavoring or activated carbon. Furthermore, one or more materials that help filter smoke may be added as the additive. The form of the additive is not particularly limited, but is usually a liquid or solid. The use of capsules containing additives is well known in the art. Frangible capsules and methods for manufacturing them are well known in the art.

[0037] The flavoring contained in the capsule may be, for example, menthol, spearmint, peppermint, fenugreek, or clove, medium chain triglycerides (MCT), or the like, or a combination thereof.

[0038] A flavoring may be added to the filter material 150 of the filter section 130. Adding a flavoring to the filter material increases the amount of flavor delivered during use compared to conventional techniques in which flavoring is added to the tobacco packing that constitutes the aerosol source section 110. The degree of increase in the amount of flavor component delivery further increases depending on the position of the openings 103 provided in the cooling section 120. The method for adding a flavoring to the filter material is not particularly limited; it need only be added so that the flavoring is substantially uniformly dispersed in the filter material to which the flavoring is added. The amount of flavoring added may be 10 to 100 volume percent of the filter material. The flavoring may be added to the filter material before or after the filter segment is constructed. The type of flavoring is not particularly limited, but may be the same as the flavoring contained in the tobacco packing 111 described above.

[0039] The filter unit 130 or the first, second or third filter segment includes a filter medium 150, and activated carbon may be added to at least a portion of the filter medium. In particular, when activated carbon is added to the filter unit 130, activated carbon is preferably added to at least a portion of the filter medium of the second or third filter segment. The amount of activated carbon added to the filter medium is 15.0 m per one non-combustion flavor inhalation article 100, calculated as the specific surface area of ​​activated carbon × weight of activated carbon / cross-sectional area of ​​the filter medium in the direction perpendicular to the air flow direction. ２ / cm ２ Over 80.0m ２ / cm ２ or less. For convenience, the above-mentioned "specific surface area of ​​activated carbon × weight of activated carbon / cross-sectional area of ​​filter material perpendicular to the airflow direction" may be 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 material of one non-combustion flavor inhalation article 100, the weight of the added activated carbon, and the cross-sectional area of ​​the filter material. Note that activated carbon may not be uniformly dispersed in the filter material to which it is added, and therefore it is not required that the above range be satisfied in all cross-sections of the filter material (cross-sections perpendicular to the airflow direction).

[0040] The surface area of ​​activated carbon per unit cross-sectional area is 17.0 m ２ / cm ２ More preferably, it is 35.0 m or more. ２ / cm ２ It is more preferable that the distance is 77.0 m or more. ２ / cm ２ More preferably, it is 73.0 m or less. ２ / cm ２ It is more preferable that the surface area of ​​activated carbon per unit cross-sectional area is less than 1 / 2. The surface area of ​​activated carbon per unit cross-sectional area can be adjusted, for example, by adjusting the specific surface area of ​​activated carbon, the amount of activated carbon added, and the cross-sectional area of ​​the filter material in a direction perpendicular to the aeration direction. The calculation of the surface area of ​​activated carbon per unit cross-sectional area is based on the filter material to which activated carbon is added. When the filter part 130 is composed of multiple filter materials, the cross-sectional area and length of only the filter material to which activated carbon is added are used as the basis.

[0041] Examples of activated carbon include those made from raw materials such as wood, bamboo, coconut shells, walnut shells, and coal. Activated carbon with a BET specific surface area of ​​1100 m ２ / g or more, 1600m ２ / g or less, and preferably 1200m ２ / g or more, 1500m ２ / g or less, and more preferably 1250m ２ / g or more, 1380m ２ / g or less can be used. BET specific surface area can be determined by nitrogen gas adsorption method (BET multipoint method). In addition, activated carbon can be used with 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. Pore volume can be calculated from the maximum adsorption amount obtained using nitrogen gas adsorption method. The amount of activated carbon added per unit length in the airflow direction of the filter material to which activated carbon is 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. By the specific surface area of ​​activated carbon and the amount of activated carbon added being within the above range, the surface area of ​​activated carbon per unit cross-sectional area can be adjusted to a desired one.

[0042] Furthermore, it is preferable that the cumulative 10% by volume particle diameter (particle diameter D10) of the activated carbon particles is 250 μm or more and 1200 μm or less. It is also preferable that the cumulative 50% by volume particle diameter (particle diameter D50) of the activated carbon particles is 350 μm or more and 1500 μm or less. The particle diameters D10 and D50 can be measured by a 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 diameter is detected based on the light scattering information of the particles. The measurement conditions for the above-mentioned measuring device are as follows: Measurement mode: Manual flow-moh cell measurement Dispersion medium: Ion-exchanged water Dispersion method: Measurement after 1 minute of ultrasonic irradiation Refractive index: 1.92-0.00i (sample refractive index) / 1.33-0.00i (dispersion medium refractive index) Number of measurements: Measurements were performed twice with different samples

[0043] Furthermore, there are no particular limitations on the method for adding activated carbon to the filter material of the filter section 130, and it is sufficient that the activated carbon is added so that it is dispersed approximately uniformly in the filter material to which it is added.

[0044] [Tipping Paper] The material of the tipping paper 140 is not particularly limited, and may be paper made from general plant fiber (pulp), a sheet made from polymer-based chemical fiber (polypropylene, polyethylene, nylon, etc.), a polymer-based sheet, metal foil, or a composite material combining these. For example, the tipping paper 140 may be made from a composite material in which a polymer-based sheet is bonded to a paper base material. Note that the tipping paper 140 here refers to a sheet-like material that connects multiple segments in the non-combustion flavor inhalation article 100, such as connecting the aerosol source section 110 and the filter section 130.

[0045] The basis weight of the tipping paper 140 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 140 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 rate at which an area of ​​1 cm2 per minute is lost when the differential pressure between both sides of the paper is 1 kPa. ２ Flow rate of gas passing through (cm ３ ) One Coresta unit (1 Coresta unit, 1 C.U.) is expressed as cm under 1 kPa. ３ / (min cm ２ )

[0046] In addition to the above-mentioned pulp, the tipping paper 140 may contain fillers, such as 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. In particular, it is preferable that the tipping paper 140 contains calcium carbonate from the viewpoint of improving whiteness and opacity and increasing the heating rate. Furthermore, these fillers may be used alone or in combination of two or more.

[0047] In addition to the pulp and fillers, various auxiliary agents may be added to the tipping paper 140. For example, the tipping paper 140 may contain a water resistance improver to improve water resistance. Water resistance improvers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea-formaldehyde resin, melamine-formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more.

[0048] A coating agent may be added to at least one of the two surfaces, the front and back surfaces, of the tipping paper 140. 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.

[0049] The method for manufacturing the tipping paper 140 is not particularly limited, and a general method can be applied, and for example, in the case of an embodiment in which pulp is the main component, a method can be mentioned in which the texture is adjusted and made uniform using pulp in a papermaking process using a Fourdrinier paper machine, a cylinder paper machine, a combined cylinder and short-circuit paper machine, etc. If necessary, a wet strength agent can be added to impart water resistance to the cigarette paper, or a sizing agent can be added to adjust the printing condition of the cigarette paper.

[0050] <Aerosol Source Unit> The configuration of the aerosol source unit 110 is not particularly limited and can be a general configuration. For example, a tobacco filler 111 wrapped in cigarette paper 112 can be used. Alternatively, the aerosol source unit 110 may have another segment, such as a tip segment, upstream of the segment containing the tobacco filler 111. The tip segment can be formed into a rod shape by wrapping a paper or acetate fiber filler in a wrapper.

[0051] [Tobacco Filler] In this embodiment, the tobacco filler 111 is composed of tobacco shreds. The material of the tobacco shreds contained in the tobacco filler 111 is not particularly limited, and known materials such as lamina or ribs can be used. Alternatively, the tobacco shreds may be produced 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 then homogenized and processed into a sheet (hereinafter simply referred to as a homogenized sheet). Furthermore, the tobacco filler may be a so-called strand type, in which a homogenized sheet having a length approximately the same as the longitudinal direction of the tobacco rod is shredded approximately parallel to the longitudinal direction of the tobacco rod and filled into the tobacco rod. Furthermore, the width of the tobacco shreds is preferably 0.5 mm or more and 2.0 mm or less when filling the aerosol source unit 110. The content of dried tobacco leaves contained in the aerosol source unit 110 is not particularly limited, but may be 200 mg or more and 800 mg or less per rod, and preferably 250 mg or more and 600 mg or less per rod. This range is particularly suitable for an aerosol source portion 110 having a circumference of 22 mm and a length of 20 mm.

[0052] Various types of tobacco can be used for the tobacco shreds and the preparation of homogenized sheets. Examples include flue-cured tobacco, burley, oriental tobacco, native tobacco, other Nicotiana tabacum varieties, Nicotiana rustica varieties, and mixtures thereof. Mixtures can be created by appropriately blending the aforementioned varieties to achieve the desired flavor. Details of the tobacco varieties are disclosed in the "Encyclopedia of Tobacco," published by the Tobacco Research Center on March 31, 2009. There are several conventional methods for producing homogenized sheets, i.e., grinding tobacco leaves and processing them into homogenized sheets. The first method is to produce a paper-making sheet using a papermaking process. The second method involves mixing a suitable solvent, such as water, with ground tobacco leaves to homogenize them, then casting a thin layer of the homogenized mixture on a metal plate or metal belt and drying it to produce a cast sheet. The third method involves mixing a suitable solvent, such as water, with ground tobacco leaves to homogenize them, and extruding the mixture into a sheet to produce a rolled sheet. The types of the homogenizing sheets are disclosed in detail in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009."

[0053] The moisture content of the tobacco filler 111 can be 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 111. This moisture content suppresses the occurrence of stains on the surface of the tobacco filler 111 and improves the suitability for wrapping during the manufacture of the aerosol source unit 110. There are no particular restrictions on the size or preparation method of the tobacco shreds contained in the tobacco filler 111. For example, dried tobacco leaves shredded to a width of 0.5 mm or more and 2.0 mm or less may be used. Furthermore, when using a ground homogenized sheet, dried tobacco leaves may be ground to an average particle size of approximately 20 μm to 200 μm, homogenized, and then shredded to a width of 0.5 mm or more and 2.0 mm or less.

[0054] The tobacco filler 111 may contain an aerosol base material for generating an aerosol. The type of the aerosol base material is not particularly limited, and extracts from various natural products and / or their constituent components can be selected depending on the application. Examples of aerosol base materials include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The content of the aerosol base material in the tobacco filler 111 is not particularly limited, and from the viewpoints 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, based on the total amount of the tobacco filler.

[0055] The tobacco filler 111 may contain a flavoring. The type of the flavoring is not particularly limited, and from the viewpoint of imparting a good flavor, the following may be used: acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, Peru balsam 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-citronellal, Nerol, clary sage extract, cocoa, coffee, konjac oil, coriander oil, cumin aldehyde, davana oil, delta-decalactone, gamma-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, lauryl methylpropional Ingredients: methicone, 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, beta-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, robertia jasmine Orris root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, para-methoxybenzaldehyde, methyl 2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, honey, myristic acid, nerol, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, omega-pentadeca Calactone, peppermint oil, petitgrain Paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaethol, 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, α-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-(2-oxadienyl)-2-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), with menthol being particularly preferred. These fragrances may be used alone or in combination of two or more.

[0056] The content of the flavoring in the tobacco filler 111 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.

[0057] [Cigarette Paper] The cigarette paper 112 is a sheet material for wrapping the tobacco filler 111. There are no particular limitations on its composition, and a common one can be used. For example, the base paper used for the cigarette paper 112 can be cellulose fiber paper, and more specifically, hemp, wood, or a mixture thereof. The basis weight of the base paper in the cigarette paper 112 is, for example, typically 20 gsm or more, and preferably 25 gsm or more. On the other hand, the basis weight is typically 65 gsm or less, preferably 50 gsm or less, and more preferably 45 gsm or less. The thickness of the cigarette paper 112 having the above characteristics is not particularly limited, and from the viewpoints of rigidity, breathability, and ease of adjustment during papermaking, it is typically 10 μm or more, preferably 20 μm or more, and more preferably 30 μm or more, and typically 100 μm or less, preferably 75 μm or less, and more preferably 50 μm or less.

[0058] The cigarette paper 112 for the aerosol source part 110 (tobacco filler 111) may have a square or rectangular shape. When used as cigarette paper 112 for wrapping the tobacco filler 111 (for producing the aerosol source part 110), the length of one side may be approximately 6 mm to 70 mm, and the length of the other side may be 15 mm to 28 mm, with the preferred length of the other side being 22 mm to 24 mm, and the more preferred length being approximately 23 mm.

[0059] In addition to the above-mentioned pulp, the cigarette paper 112 may contain a filler. The content of the filler can be 10% by weight or more and less than 60% by weight, and preferably 15% by weight or more and 45% by weight or less, relative to the total weight of the cigarette paper 112. In the cigarette paper 112, within a preferred basis weight range (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 content 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 content 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 calcium carbonate is preferably used from the viewpoint of enhancing flavor and whiteness, etc.

[0060] Various auxiliary agents other than the base paper and fillers may be added to the wrapping paper 112. For example, a water resistance improver may be added to improve water resistance. Water resistance improvers include wet strength agents (WS agents) and sizing agents. Examples of wet strength agents include urea-formaldehyde resin, melamine-formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more. A paper strength agent may also be added as an auxiliary agent, and examples thereof include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, and polyvinyl alcohol. In particular, it is known that the use of a very small amount of oxidized starch improves the breathability (for example, JP 2017-218699 A). The wrapping paper 112 may be appropriately coated.

[0061] A coating agent may be added to at least one of the two surfaces, the front and back surfaces, of the wrapping paper 112. 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. 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).

[0062] The axial length of the aerosol source 110 can be changed appropriately according to the size of the product, but is, for example, 5 mm or more, preferably 10 mm or more, more preferably 12 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.

[0063] [Cooling Unit] The configuration of the cooling unit 120 is not particularly limited as long as it has the function of cooling the vapor generated by heating the aerosol source unit, and an example thereof is a cylindrical cardboard. In this case, the inside of the cylinder is hollow, and the vapor containing the aerosol base material and tobacco flavor components is cooled by contact with the air in the hollow. In the example shown in Figure 2, the cooling unit 120 is composed of a single segment, but the cooling unit 120 may also be composed of multiple segments.

[0064] One embodiment of the cooling section 120 may be a paper tube formed by processing a single sheet of paper or multiple sheets of paper into a cylindrical shape. Furthermore, in order to increase the cooling effect by bringing room-temperature external air into contact with high-temperature steam, it is preferable that the paper tube have openings around the periphery for introducing external air. The cooling section 120 has openings 103 for introducing air from the outside. The number of openings 103 in the cooling section 120 is not particularly limited. In this embodiment, multiple openings 103 are arranged at regular intervals in the circumferential direction of the cooling section 120. Furthermore, the group of openings 103 arranged in the circumferential direction of the cooling section 120 may be formed in multiple stages along the axial direction of the cooling section 120. By providing the openings 103 in the cooling section 120, when inhaling the non-combustion flavor inhalation article 100, low-temperature air flows into the cooling section 120 from the outside, thereby lowering the temperature of the volatile components and air flowing in from the aerosol source section 110. Furthermore, the vapor containing the aerosol base material and tobacco flavor components is cooled by the low-temperature air introduced into the cooling section 120 through the openings 103, and condenses. This promotes the generation of aerosols and also makes it possible to control the size of the aerosol particles. Furthermore, by applying a polymer coating such as polyvinyl alcohol or a polysaccharide coating such as pectin to the inner surface of the paper tube, the cooling effect can be increased by utilizing the heat of dissolution that accompanies the heat absorption and phase change of the coating. The airflow resistance of this cylindrical cooling segment is zero mmH. ２ It becomes O.

[0065] When the cooling section 120 is filled with a sheet or the like for cooling the volatile components or air flowing from the aerosol source section 110 into the cooling section 120, the total surface area of ​​the cooling section 120 is not particularly limited, and is, for example, 300 mm ２ / mm or more, 1000mm ２ This surface area is the surface area per length (mm) of the cooling section 120 in the airflow direction. The total surface area of ​​the cooling section 120 is 400 mm ２ / mm or more, and ２ / mm or more is more preferable, while 600 mm ２ / mm or less, and ２ / mm or less is more preferable.

[0066] It is desirable for the cooling portion 120 to have a large total surface area due to its internal structure. Thus, in a preferred embodiment, the cooling portion 120 may be formed from a thin sheet of material that is wrinkled to form channels, and then pleated, gathered, and folded. The sheet may be wrapped in a wrapper. The more folds or pleats within a given volume of the element, the greater the total surface area of ​​the cooling portion 120. The thickness of the material from which the cooling portion 120 is made is not particularly limited and may be, for example, from 5 μm to 500 μm, or from 10 μm to 250 μm.

[0067] It is also desirable to use paper as the material for the cooling sheet member from the viewpoint of reducing the environmental load. The paper as the material for the cooling sheet has a basis weight of 30 to 100 g / m ２ and a thickness of 20 to 100 μm is desirable. From the viewpoint of minimizing the removal of flavor source components and aerosol base components in the cooling segment, it is desirable for the air permeability of the paper used as the cooling sheet material to be low, and the air permeability is preferably 10 Coresta or less. By applying a polymer porting such as polyvinyl alcohol or a coating of a polysaccharide such as pectin to the paper used as the cooling sheet material, the cooling effect can be increased by utilizing the heat of solution associated with the endothermic heat and phase change of the coating.

[0068] The opening 103 in the cooling section 120 is preferably positioned at a distance of 1 mm or more, more preferably 2 mm or more, from the boundary between the cooling section 120 and the filter section 130. This not only improves the cooling capacity of the cooling section 120, but also suppresses the retention of components generated by heating within the cooling section 120, thereby improving the delivery amount of the components. It is preferable that the tipping paper 140 has an opening directly above (a vertically overlapping position with) the opening 103 formed in the cooling section 120. For this reason, after the aerosol source section 110, the cooling section 120, and the filter section 130 are wrapped and connected with the tipping paper 140, a laser beam may be irradiated from above the tipping paper 140, penetrating the tipping paper 140 and the cooling section 120, to form an opening. The openings in the cooling section 120 are preferably arranged so that when an automatic smoking machine inhales at 17.5 ml / sec, the air inflow rate through the openings (the volumetric rate of air inflowing through the openings when the volumetric rate of air inhaled from the mouth end is taken as 100 volumetric%) is 10 to 90 volume%, preferably 50 to 80 volume%, and more preferably 55 to 75 volume%. This can be achieved, for example, by selecting the number of openings V per opening group from a range of 5 to 50, selecting the diameter of the openings V from a range of 0.1 to 0.5 mm, or by combining these selections. The above air inflow rate can be measured using an automatic smoking machine (e.g., a single-cigarette automatic smoking machine manufactured by Borgwaldt) using a method conforming to ISO 9512. The axial length (airflow direction) of the cooling section 120 is not particularly limited, but is typically 10 mm or more, preferably 15 mm or more, and typically 40 mm or less, preferably 35 mm or less, and more preferably 30 mm or less. It is particularly preferable that the axial length of the cooling section 120 is 20 mm. By setting the axial length of the cooling section 120 to be equal to or greater than the above-mentioned lower limit, a sufficient cooling effect can be ensured and a good flavor can be obtained. Furthermore, by setting the axial length of the cooling section 120 to be equal to or less than the above-mentioned upper limit, loss caused by vapor and aerosols generated during use adhering to the inner wall of the cooling section 120 can be suppressed.

[0069] Furthermore, the non-burning flavor inhalation article 100 configured as described above may have a portion of the outer surface of the tipping paper 140 coated with a lip release material. The lip release material refers to a material configured to help the lips and the tipping paper 140 easily separate without substantial adhesion when the user holds the non-burning flavor inhalation article 100 in their mouth. The lip release material may contain, for example, ethyl cellulose, methyl cellulose, etc. For example, the outer surface of the tipping paper 140 may be coated with the lip release material by applying an ethyl cellulose-based or methyl cellulose-based ink to the outer surface of the tipping paper 140.

[0070] In this embodiment, the lip release material of the tipping paper 140 is disposed at least in a predetermined mouthpiece region that comes into contact with the lips of a user when the user holds the non-combustion type flavor inhalation article 100 in his / her mouth. More specifically, the lip release material-disposed region R1 (see FIG. 2 ) on the outer surface of the tipping paper 140 that is covered with the lip release material is defined as the region located between the mouthpiece end 101 of the filter portion 130 and the opening 103.

[0071] Furthermore, the airflow resistance in the longitudinal direction of each non-combustion type flavor inhalation article 100 configured as described above is not particularly limited, but from the viewpoint of ease of inhalation, it is usually 8 mmH ２ O or more, 10 mmH ２ It is preferable that the pressure is 12 mmH or more. ２ It is more preferable that the pressure is 100 mmH or more. ２ O or less, 80 mmH ２ It is preferable that the pressure is 60 mmH or less. ２It is more preferable that the airflow resistance is 0 or less. The airflow resistance is measured in accordance with the ISO standard method (ISO 6565:2015) 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) of the non-combustion flavor inhalation article 100 in a state where air does not pass through the side faces of the non-combustion flavor inhalation article 100. The unit is generally expressed in mmH2O. It is known that the relationship between the airflow resistance and the non-combustion flavor inhalation article 100 is proportional within the length range typically used (5 mm to 200 mm), and if the length of the non-combustion flavor inhalation article 100 is doubled, the airflow resistance also doubles.

[0072] The rod-shaped non-burning flavor inhalation article 100 preferably has a columnar shape that satisfies the aspect ratio defined as follows, which is 1 or more: aspect ratio = h / w

[0073] w is the width of the tip 102 of the non-combustion flavor inhalation article 100, h is the length in the axial direction, and it is preferable that h≧w. The cross-sectional shape of the non-combustion flavor inhalation article 100 is not particularly limited and may be polygonal, rounded polygonal, circular, elliptical, or the like. The width w of the non-combustion flavor inhalation article 100 is the diameter when the cross-sectional shape of the non-combustion flavor inhalation article 100 is circular, the major axis when the cross-sectional shape is elliptical, and the diameter of the circumscribed circle or the major axis of the circumscribed ellipse when the cross-sectional shape is polygonal or rounded polygonal. The axial length h of the non-combustion flavor inhalation article 100 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. Also, it is typically 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less. The width w of the tip 102 of the non-combustion flavor inhalation article 100 is not particularly limited and is, for example, typically 5 mm or more, and preferably 5.5 mm or more. The ratio of the lengths of the cooling section 120 and the filter section 130 to the length of the non-combustion flavor inhalation article 100 (cooling section:filter section) is not particularly limited, but from the viewpoint of the amount of flavor delivered and an appropriate aerosol temperature, it is usually 0.60 to 1.40:0.60 to 1.40, preferably 0.80 to 1.20:0.80 to 1.20, more preferably 0.85 to 1.15:0.85 to 1.15, even more preferably 0.90 to 1.10:0.90 to 1.10, and particularly preferably 0.95 to 1.05:0.95 to 1.05. By keeping the length ratio of the cooling section 120 and the filter section 130 within the above range, the cooling effect, the effect of suppressing losses due to the generated steam and aerosol adhering to the inner wall of the cooling section 120, and the filter's air volume and flavor adjustment function are balanced, thereby achieving a good flavor and flavor intensity.

[0074] <Non-burning flavor inhalation device> Fig. 4 is a diagram schematically showing the internal structure of the non-burning flavor inhalation device 30 according to the first embodiment. The non-burning flavor inhalation device 30 has a housing 31 that is a case for accommodating various components. The housing 31 accommodates a heater 32, a temperature sensor 35, a suction sensor 36, a control unit 37, a power source 38, etc.

[0075] [Storage section] The housing 31 has a storage section 310 that stores the non-combustion type flavor inhalation article 100 in an insertable and removable manner from the front end to the rear end. The storage section 310 extends in the insertion / removal direction of the non-combustion type flavor inhalation article 100 and includes a cylindrical peripheral wall 312 that defines the outer periphery of a space into which the non-combustion type flavor inhalation article 100 is inserted, and a disk-shaped rear wall 311 that closes the rear end of the peripheral wall 312 so as to define the rear end of the space. The peripheral wall 312 and the rear wall 311 of the storage section 310 may be formed integrally with the housing 31, or may be formed separately from the housing 31 and assembled to the housing 31.

[0076] The open end of the peripheral wall 312 of the storage section 310 is open toward the outside of the housing 31 and serves as an insertion opening 3A for inserting the non-combustion type flavor inhalation article 100. The internal space of the peripheral wall 312 serves as a cylindrical storage cavity 313 into which the tip portion of the non-combustion type flavor inhalation article 100 can be inserted and removed through the insertion opening 3A. In FIG. 4 , symbol CL indicates the central axis of the storage cavity 313 in the insertion and removal direction of the non-combustion type flavor inhalation article 100. Hereinafter, the direction along this central axis CL will also be referred to as the axial direction. The outer diameter of the storage cavity 313, i.e., the inner diameter of the peripheral wall 312, may be equal to, slightly larger than, or slightly smaller than the outer diameter of the non-combustion type flavor inhalation article 100.

[0077] A heater 32 is provided around the peripheral wall 312 of the storage section 310. The peripheral wall 312 and the rear wall 311 of the storage section 310 are formed of a material that can withstand the heat of the heater 32 and transfer the heat of the heater 32 to the non-combustion type flavor inhalation article 100. Examples of materials used for such a storage section 310 include metals such as stainless steel and heat-resistant resins. The heater 32 may be disposed inside the peripheral wall 312.

[0078] [Heater] The heater 32 generates heat upon receiving power supply from the control unit 37 and heats the non-combustion type flavor inhalation article 100 housed in the housing unit 310. In other words, the heater 32 is one form of a heating unit that heats the non-combustion type flavor inhalation article 100. The type of heater 32 is not particularly limited, but examples that can be used include a steel material with a heating wire (e.g., a wire material with high electrical resistance such as nichrome, iron chromium, or iron nickel) strung throughout, a ceramic heater, a sheathed heater, etc. A sheathed heater is a heater in which a heating wire is covered with a metal pipe together with a filler.

[0079] FIG. 1 shows a state in which the non-combustion type flavor inhalation article 100 is inserted into the storage cavity 313. In this state, the heater 32 receives power from the control unit 37 as described below and heats the aerosol source unit 110 to a predetermined temperature. The space in the storage cavity 313 that is heated to a predetermined temperature by the heat of the heater 32 is designated as a heated region A1, and the space adjacent to the insertion opening of the heated region A1 in the axial direction (insertion / removal direction) is designated as a non-heated region A2. The non-heated region A2 is formed on the insertion opening side of the storage cavity 313, and the heated region A1 is formed on the inner side of the storage cavity 313. The heater 32 is disposed around or inside the peripheral wall 312 in the heated region A1 and heats the heated region A1 from the outside. The heater 32 not only heats the area in contact with the heater 32, but also heats areas distant from the heater 32 by radiation and heat transfer. For example, the heater 32 heats the peripheral wall 312 at a predetermined temperature from its front end to a position 317 toward the insertion opening in the axial direction. Therefore, the heated region A1 is the region from the position 317 to the rear wall 311 in the axial direction of the housing portion 310. That is, the position 317 is the boundary between the heated region A1 and the non-heated region A2, and the non-heated region A2 is the region from the boundary 317 to the front end of the housing cavity 313 in the axial direction. The boundary 317 may be determined as the boundary between a region where the temperature reaches the predetermined temperature and a region where the temperature falls below the predetermined temperature when actually heated by the heater 32, or may be determined as the estimated boundary between a region where the temperature reaches the predetermined temperature and a region where the temperature falls below the predetermined temperature when the heater 32 is operated under predetermined conditions. In this embodiment, the boundary position between the region where the temperature reaches the predetermined temperature and the region where the temperature falls below the predetermined temperature of the peripheral wall 312 is estimated, and the plane passing through this boundary position and perpendicular to the central axis CL is determined as the boundary 317, as shown by the two-dot chain line in FIG. 4 . When the non-burning type flavor inhalation article 100 is inserted into the accommodating cavity 313, the aerosol source section 110 is located in the heated region A1, and at least a part of the cooling section 120 is located in the non-heated region A2.In addition, when the non-combustion type flavor inhalation article 100 is in a predetermined state, for example, inserted into the storage cavity 313 until the tip 102 of the non-combustion type flavor inhalation article 100 hits the rear wall 311 of the storage section 310, the part of the storage cavity 313 where the aerosol source section 110 is located may be defined as the heated area A1, and the part where the cooling section 120 is located may be defined as the non-heated area A2.

[0080] The present invention will be experimentally explained by the following examples, but the following explanation is not intended to limit the scope of the present invention to the following examples.

[0081] Example 1: A tow (8.2 filament denier, 29,000 total denier) consisting of C-shaped filaments was prepared, and the plasticizer triacetin was uniformly sprayed onto the tow. The triacetin was added with the goal of achieving a triacetin content of 6 wt% relative to the tow weight. Breakable capsules (approximately spherical, 3.5 mm in diameter) were placed at equal intervals within the triacetin-added tow, and the outer periphery was wrapped in a filter wrapper (26 gsm basis weight, 40 μm thick greaseproof paper) to produce a cylindrical filter rod (continuous filter segment, axial length: 120 mm, circumference: 21.3 mm). The resulting filter rod was equivalent to 10 filter segments (axial length: 12 mm). The obtained filter rod contained 10 of the above-mentioned breakable capsules, with the distance between the centers of adjacent breakable capsules being 12 mm, and the distance between the center of the breakable capsule closest to the end of the filter rod and that end being 6 mm (the distance between the part of the capsule closest to the end of the filter rod and the end of the filter rod was 4.25 mm). Furthermore, for the obtained filter rod, the total denier of the filaments contained in the tow / filter cross-sectional area was 823 denier / mm ２ Here, the filter cross-sectional area is the cross-sectional area calculated from the diameter of the filter rod excluding the thickness of the filter wrapper. As shown in Table 1 below, the packing density of the tow in the filter rod was 0.120 mg / mm ３ It was.

[0082] [Comparative Example 1] The packing density of the tow in the obtained filter rod was 0.115 mg / mm ３ A cylindrical filter rod (axial length: 120 mm, circumference: 21.3 mm) was produced in the same manner as in Example 1, except that the tow feed rate was changed so that the filter rod was 823 denier / mm The fracturable capsules in the obtained filter rod were arranged in the same manner as in Example 1, with 10 of the fracturable capsules being arranged, the distance between the centers of adjacent fracturable capsules being 12 mm, and the distance between the center of the fracturable capsule closest to the end of the filter rod and that end being 6 mm (the distance between the part of the capsule closest to the end of the filter rod and the end of the filter rod was 4.25 mm). Furthermore, for the obtained filter rod, the total denier of the filaments contained in the tow / filter cross-sectional area was 823 denier / mm ２ It was.

[0083] [Comparative Example 2] The packing density of the tow in the obtained filter rod was 0.117 mg / mm ３ A cylindrical filter rod (axial length: 120 mm, circumference: 21.3 mm) was produced in the same manner as in Example 1, except that the tow feed rate was changed so that the filter rod was 823 denier / mm The fracturable capsules in the obtained filter rod were arranged in the same manner as in Example 1, with 10 of the fracturable capsules being arranged, the distance between the centers of adjacent fracturable capsules being 12 mm, and the distance between the center of the fracturable capsule closest to the end of the filter rod and that end being 6 mm (the distance between the part of the capsule closest to the end of the filter rod and the end of the filter rod was 4.25 mm). Furthermore, for the obtained filter rod, the total denier of the filaments contained in the tow / filter cross-sectional area was 823 denier / mm ２ It was.

[0084] Example 2 A cylindrical filter rod (axial length: 120 mm, circumference: 21.3 mm) was produced in the same manner as in Example 1, except that a tow consisting of filaments with a C-shaped cross section (12 filament denier, 28,000 total denier) was used instead of a tow consisting of filaments with a C-shaped cross section (8.2 filament denier, 29,000 total denier). As shown in Table 1 below, the packing density of the tow in the filter rod was 0.119 mg / mm ３ As in Example 1, 10 of the above-mentioned breakable capsules were arranged in the obtained filter rod, and the distance between the centers of adjacent breakable capsules was 12 mm, and the distance between the center of the breakable capsule closest to the end of the filter rod and the end was 6 mm (the distance between the part of the capsule closest to the end of the filter rod and the end of the filter rod was 4.25 mm). Furthermore, for the obtained filter rod, the total denier of the filaments contained in the tow / filter cross-sectional area was 794 denier / mm ２ It was.

[0085] [Comparative Example 3] The packing density of the tow in the obtained filter rod was 0.116 mg / mm ３ A cylindrical filter rod (axial length: 120 mm, circumference: 21.3 mm) was produced in the same manner as in Example 2, except that the tow feed rate was changed so that the filter rod was 100 mm long. As in Example 2, 10 of the above-mentioned breakable capsules were arranged in the obtained filter rod, with the center-to-center distance between adjacent breakable capsules being 12 mm, and the distance between the center of the breakable capsule closest to the end of the filter rod and that end being 6 mm (the distance between the part of the capsule closest to the end of the filter rod and the end of the filter rod was 4.25 mm). Furthermore, for the obtained filter rod, the total denier of the filaments contained in the tow / filter cross-sectional area was 794 denier / mm ２ It was.

[0086] Example 3 A cylindrical filter rod (axial length: 120 mm, circumference: 21.3 mm) was produced in the same manner as in Example 1, except that a tow consisting of filaments with a C-shaped cross section (5 filament denier, 30,000 total denier) was used instead of a tow consisting of filaments with a C-shaped cross section (8.2 filament denier, 29,000 total denier). As shown in Table 1 below, the packing density of the tow in the filter rod was 0.120 mg / mm ３ As in Example 1, 10 of the above-mentioned rupturable capsules were arranged in the obtained filter rod, and the distance between the centers of adjacent rupturable capsules was 12 mm, and the distance between the center of the rupturable capsule closest to the end of the filter rod and the end was 6 mm (the distance between the part of the capsule closest to the end of the filter rod and the end of the filter rod was 4.25 mm). Furthermore, for the obtained filter rod, the total denier of the filaments contained in the tow / filter cross-sectional area was 851 denier / mm ２ It was.

[0087] [Evaluation] The filter rods produced as described above in Examples 1, 2, and 3 and Comparative Examples 1 and 2 were subjected to measurement of airflow resistance (PD) and evaluation of displacement of the breakable capsules, as shown below. The results are shown in Table 1.

[0088] <Airflow Resistance (PD)> The airflow resistance (PD) of the filter rod was measured using an airflow resistance measuring device (trade name: SODIMAX, manufactured by SODIM) in accordance with ISO 6565:2015.

[0089] <Evaluation of Positional Misalignment of Breakable Capsules> Using a clamping tester, significant misalignment was evaluated for breakable capsules contained in a filter segment (hereinafter also referred to as a terminal filter segment) located at the end of a filter rod (continuous filter segment). Specifically, as shown in FIG. 5, pressure was applied to the boundary between a terminal filter segment 442 having an axial length of 12 mm and a second filter segment 441 adjacent to the terminal filter segment 442, also having an axial length of 12 mm, using the clamping member 443 of the clamping tester to clamp the segment. After clamping, the continuous filter segment was moved 1 mm in the feed direction 444, the clamped portion was moved 1 mm toward the end, and then clamped again. This process was repeated 11 times. After the test, if the breakable capsule 440 of the terminal filter segment 442 moved 3.0 mm or more, it was evaluated as significant misalignment. These evaluations were performed on 30 continuous filter segments, and the significant misalignment rate was calculated. The results are shown in Table 1.

[0090]

[0091] As shown in Table 1, the terminal filter segments of Examples 1 to 3 had a low rate of significant displacement, and the displacement of the breakable capsules was suppressed even when an external force was applied. On the other hand, the terminal filter segments of Comparative Examples 1 to 3 had a high rate of significant displacement, and the displacement of the breakable capsules occurred when an external force was applied.

[0092] As described above, the non-combustion flavor inhalation article of the present invention, in which the filter material includes a tow containing filaments with a C-shaped cross-sectional shape and at least one of the capsules is positioned within 15 mm of the exposed end closest to the capsule among the exposed ends on the mouth side of the filter section, can stabilize the position of the capsule while maintaining low filtration.

[0093] DESCRIPTION OF SYMBOLS 100...Non-burning flavor inhalation article 101...Mouth end 102...Tip 103...Aperture 110...Aerosol source portion 111...Tobacco filler 112...Wrapping paper 120...Cooling portion 130...Filter portion 140...Tipping paper 150...Filter material 160...Filter wrapper 170...Additive release container R1...Lip release material arrangement region 200...Non-burning flavor inhalation system 30...Non-burning flavor inhalation device 3A...Insertion port 31...Housing 32...Heater 35...Temperature sensor 36...Inhalation sensor 37...Control unit 38...Power source 310...Storage portion 311...Rear wall 312...Peripheral wall 313...Storage cavity 317...Boundary CL...Central axis A1...Heated region A2...Non-heated region 440...Fracturable capsule 441...Second filter segment 442... Terminal filter segment 443... Clamping member 444... Feeding direction

Claims

1. A non-combustion type flavor inhalation article including an aerosol source portion, a cooling portion, and a filter portion, the filter portion includes a first filter segment, the first filter segment including a filter medium and a capsule; The filter medium includes a tow containing filaments having a C-shaped cross-sectional shape, The non-combustion flavor inhalation article, wherein at least one of the capsules is positioned within 15 mm from the exposed end of the filter portion closest to the capsule among the exposed ends on the mouth side of the filter portion.

2. The packing density of the tow is 0.117 mg / mm ３ The non-burning flavor inhalation article according to claim 1 .

3. The packing density of the tow is 0.125 mg / mm ３ The non-burning flavor inhalation article according to claim 1 or 2, wherein:

4. The first filter segment has an airflow resistance of 255 mmH per 120 mm of axial length. ２ The non-burning flavor inhalation article according to claim 1 or 2, wherein the viscosity is 0 or less.

5. The filament denier of the filaments contained in the tow is 5 to 12, and the total denier of the filaments contained in the tow / filter cross-sectional area is 600 to 900 denier / mm ２ The non-burning flavor inhalation article according to claim 1 or 2,

6. The non-burning flavor inhalation article according to claim 1 or 2, wherein the filter portion further includes a second filter segment, and the second filter segment is disposed upstream of the first filter segment.

7. The non-burning flavor inhalation article according to claim 1 or 2, wherein the first filter segment has an axial length of 15 mm or less.

8. The non-combustion flavor inhalation article according to claim 1 or 2, wherein the aerosol source portion contains a tobacco filler.

9. A non-burning flavor inhalation system comprising the non-burning flavor inhalation article according to claim 1 or 2.