Smoking system, device kit, consumable supply, combination product, and method for acquiring feeling of arrival at end and foreseeing arrival at end

Abstract

To provide a smoking system that when a flavor generation article is inserted into a chamber, allows a user to easily feel arrival at an end of the chamber and to easily foresee that it will arrive at the end of the chamber.SOLUTION: When a resistance value when a flavor generation article is inserted into a storage part and a tip of the flavor generation article arrives at an end of the storage part, is insertion force A, and a ratio of a rear-half average resistance force to a front-half average resistance force is a first resistance ratio B, a smoking system satisfies A≤4.00 N and B>1.0, where the rear-half average resistance value is an average of resistance values from a midpoint between a prescribed position on an insertion end side of the storage part and an end of the storage part to the end of the storage part. and the front-half average resistance force is an average of resistance values from the prescribed position to a midpoint between the prescribed position and the end of the storage part.SELECTED DRAWING: Figure 16

Description

Technical Field

[0001] The present invention relates to a smoking system, a device kit, a consumable, a combination product, and a method for obtaining a sense of reaching the end and a sense of predicting reaching the end.

Background Art

[0002] Conventionally, a flavor attractor for attracting flavors and the like without burning materials is known. As such a flavor attractor, for example, one having a gripping portion for gripping an inserted flavor generating article corresponding to an opening of a chamber is known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Citation Document 1 discloses a structure for gripping a flavor generating article inserted into a chamber. However, when the flavor generating article is inserted into the chamber, there is no device that makes it easy to feel that the end of the chamber has been reached and easy to predict reaching the end of the chamber. That is, since it is difficult to feel that the end of the chamber has been reached and difficult to predict reaching the end of the chamber, the flavor generating article may be pushed in too strongly, causing deformation of the flavor generating article.

[0005] Further, if the flavor generating article is not properly positioned with respect to the heating portion of the flavor attractor, the heating of the flavor generating article (particularly, the filling portion filled with smokable material) may not be sufficient, which may have an undesirable effect on the taste. Therefore, it is important to be able to easily feel that the end of the chamber has been reached and easily predict reaching the end of the chamber so that the flavor generating article can be placed at an appropriate position in the chamber.

[0006] The present invention is made to solve at least a part of the above problems, and when an aroma-generating article is inserted into a chamber, it is an object to obtain a smoking system in which it is easy to feel that the end of the chamber has been reached and it is easy to predict reaching the end of the chamber.

Means for Solving the Problems

[0007] In a first aspect of the present invention, a smoking system is provided. This smoking system includes an aroma suction device and an aroma-generating article. The aroma suction device includes a housing portion having an opening formed at one end and housing at least a part of the aroma-generating article through the opening. When the aroma-generating article is inserted into the housing portion, the resistance value when the tip of the aroma-generating article reaches the end of the housing portion is defined as the insertion force A, and when the aroma-generating article is inserted into the housing portion, the average of the resistance values from a predetermined position on the insertion end side of the housing portion to the midpoint between the predetermined position and the end of the housing portion is the average resistance of the first half portion. When the ratio of the average resistance of the second half portion, which is the average of the resistance values from the midpoint between the predetermined position and the end of the housing portion to the end of the housing portion, to the average resistance of the first half portion is defined as the first resistance ratio B, the following expressions (1) and (2) are satisfied. A ≦ 4.00 N...(1) B > 1.0...(2)

[0008] According to the first aspect of the present invention, by satisfying expression (1), when the aroma-generating article is inserted into the housing portion, it is possible to feel that the end of the housing portion has been reached, and by satisfying expression (2), the sense of increase in the insertion resistance on the side approaching the end of the housing portion makes it possible to sense the approach of the end, so it becomes easy to predict reaching the end of the housing portion.

[0009] In the first aspect of the present invention, the predetermined position on the insertion end side of the accommodating portion may be a position 10 mm from the end of the accommodating portion. Also, the midpoint between the predetermined position and the end of the accommodating portion may be a position 5 mm from the end of the accommodating portion. In this case, the average resistance of the first half may be the average of the resistance values in the range where the position from the end of the accommodating portion is 10 mm to 5 mm, and the average resistance of the second half may be the average of the resistance values in the range where the position from the end of the accommodating portion is 5 mm to 0 mm.

[0010] In the second aspect of the present invention, in the first aspect, when a fragrance-generating article is inserted into the accommodating portion, at least one local variation region where the resistance value varies by a predetermined amount or more within a predetermined range is provided.

[0011] According to the second aspect of the present invention, by providing a local variation in the resistance value, it becomes easier for the user to sense the approach of the end of the accommodating portion, and it becomes even easier to anticipate reaching the end of the accommodating portion.

[0012] In the third aspect of the present invention, in the second aspect, when the ratio of the resistance value to the insertion force in the local variation region is defined as the second resistance ratio C, the following formula (3) is satisfied. C≧0.8…(3)

[0013] According to the third aspect of the present invention, by satisfying formula (3), since the resistance value in the local variation region is significantly smaller than the insertion force, it is possible to suppress the situation where it becomes impossible to contribute to the prediction of reaching the end of the accommodating portion.

[0014] In the fourth aspect of the present invention, in the second or third aspect, when the distance from the end position of the accommodating portion to the local variation region is defined as the distance D, the following formula (4) is satisfied. D≦5.0mm…(4)

[0015] According to the fourth aspect of the present invention, by satisfying formula (4), until reaching the end of the accommodating portion, the user can maintain the feeling of passing through the local variation region, so it becomes even easier to anticipate reaching the end of the accommodating portion.

[0016] In a fifth aspect of the present invention, in any one of the first to fourth aspects, the smoking system further includes a heating unit that heats the flavor generating article housed in the housing unit, and the heating unit is provided in the flavor suction device and does not have a heating element inserted into the flavor generating article.

[0017] According to the fifth aspect of the present invention, for example, in a flavor suction device in which the heating unit is arranged on the outer periphery of the housing unit, it becomes easier to feel that the end of the housing unit has been reached, and it also becomes easier to predict reaching the end of the housing unit. Further, when the heating unit provided in the flavor suction device is inserted into the flavor generating article, with use, aggregates of the flavor generating article or aerosol smoke generated from the flavor generating article may adhere to the heating unit, which may affect the insertion feeling of the flavor generating article. In contrast, according to the fifth aspect of the present invention, for example, in a flavor suction device in which the heating unit is arranged on the outer periphery of the housing unit, adhesion of aggregates or the like to the heating unit does not occur, so it is possible to suppress a change in the insertion feeling of the flavor generating article with use.

[0018] In a sixth aspect of the present invention, in any one of the first to fifth aspects, the flavor generating article includes a filling portion filled with a smokable article, a hollow cylindrical portion provided continuously with the filling portion, and a filter portion provided continuously with the cylindrical portion, the housing unit includes a gripping portion that grips the flavor generating article housed in the housing unit, and the gripping portion is provided at a position where it can contact at least two portions of the flavor generating article when the flavor generating article is inserted into the housing unit.

[0019] According to the sixth aspect of the present invention, when the flavor generating article is inserted into the housing unit, by contacting at least two portions of the flavor generating article, the flavor generating article can be stably gripped at a position close to the insertion end of the housing unit.

[0020] In a seventh aspect of the present invention, in any one of the first to sixth aspects, the housing unit includes a contact portion that presses a part of the housed flavor generating article along the axial direction of the housing unit, and a separation portion that is separated from the housed flavor generating article.

[0021] According to the seventh aspect of the present invention, by pressing a part of the fragrance generating article housed in the housing part along the axial direction of the housing part with the contact part, the inserted fragrance generating article can be compressed and held.

[0022] In the eighth aspect of the present invention, a device kit is provided. This device kit includes the fragrance attractor according to any one of the first to seventh aspects, and a display indicating that it is used for the fragrance generating article according to any one of the first to seventh aspects.

[0023] According to the eighth aspect of the present invention, when a fragrance generating article used for this fragrance attractor is applied to the fragrance attractor included in the device kit, it becomes easier to feel that the end of the housing part has been reached, and it also becomes easier to predict reaching the end of the housing part.

[0024] In the ninth aspect of the present invention, a consumable is provided. This consumable includes the fragrance generating article according to any one of the first to seventh aspects, and a display indicating that it is used for the fragrance attractor according to any one of the first to seventh aspects.

[0025] According to the ninth aspect of the present invention, when a fragrance attractor used for this fragrance generating article is applied to the fragrance generating article included in the consumable, it becomes easier to feel that the end of the housing part has been reached, and it also becomes easier to predict reaching the end of the housing part.

[0026] In the tenth aspect of the present invention, a combination product of a consumable and a device kit is provided. This combination product includes a consumable containing a fragrance generating article according to any one of the first to sixth aspects, and a device kit containing a fragrance attractor according to any one of the first to sixth aspects, and at least one of the consumable and the device kit has a display indicating that it is used for the other of the consumable and the device kit.

[0027] According to the tenth aspect of the present invention, in a combination product of a device kit and a consumable which is a dedicated item for the device kit, it becomes easy to feel that the end of the accommodating portion has been reached, and it also becomes easy to anticipate reaching the end of the accommodating portion.

[0028] In the eleventh aspect of the present invention, in a smoking system including a flavor attractor and a flavor generating article, a method for obtaining a feeling of reaching the end and a feeling of anticipating reaching the end is provided. In this method, the flavor attractor includes an accommodating portion having an opening formed at one end and accommodating at least a part of the flavor generating article through the opening. When the flavor generating article is inserted into the accommodating portion, the resistance value when the tip of the flavor generating article reaches the end of the accommodating portion is defined as the insertion force A, and when the flavor generating article is inserted into the accommodating portion, the average of the resistance values from a predetermined position on the insertion end side of the accommodating portion to the midpoint between the predetermined position and the end of the accommodating portion is defined as the front half average resistance force. When the ratio of the average of the resistance values from the midpoint between the predetermined position and the end of the accommodating portion to the end of the accommodating portion to the front half average resistance force is defined as the first resistance ratio B, the following formula (1) and formula (2) are satisfied. A ≦ 4.00 N…(1) B > 1.0…(2)

[0029] According to the eleventh aspect of the present invention, by satisfying formula (1), when the flavor generating article is inserted into the accommodating portion, it is possible to feel that the end of the accommodating portion has been reached. Also, by satisfying formula (2), the sense of increase in the insertion resistance on the side approaching the end of the accommodating portion allows the approach of the end to be sensed, so it becomes easy to anticipate reaching the end of the accommodating portion.

[0030] In the eleventh aspect of the present invention, the predetermined position on the insertion end side of the accommodating portion may be a position 10 mm from the end of the accommodating portion. Also, the midpoint between the predetermined position and the end of the accommodating portion may be a position 5 mm from the end of the accommodating portion. In this case, the front half average resistance force may be the average of the resistance values in the range where the position from the end of the accommodating portion is 10 mm to 5 mm, and the rear half average resistance force may be the average of the resistance values in the range where the position from the end of the accommodating portion is 5 mm to 0 mm.

Brief Description of the Drawings

[0031]

Figure 1A

Figure 1B

Figure 1C

Figure 2

Figure 3

Figure 4A

Figure 4B

Figure 5A

Figure 5B

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Mode for Carrying Out the Invention

[0032] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings described below, the same or corresponding components are denoted by the same reference numerals, and redundant descriptions are omitted.

[0033] [Basic Configuration] First, the basic configuration of the fragrance attractor according to the present embodiment will be described. FIG. 1A is a schematic front view of the fragrance attractor 100 according to the present embodiment. FIG. 1B is a schematic top view of the fragrance attractor 100 according to the present embodiment. FIG. 1C is a schematic bottom view of the fragrance attractor 100 according to the present embodiment. In the drawings described in this specification, an X-Y-Z orthogonal coordinate system may be attached for convenience of explanation. In this coordinate system, the Z-axis points vertically upward, the X-Y plane is arranged so as to cut the fragrance attractor 100 horizontally, and the Y-axis is arranged so as to extend from the front to the back of the fragrance attractor 100. The Z-axis can also be referred to as the insertion direction of the fragrance generating article accommodated in the chamber 50 of the atomizing unit 30 described later, or the axial direction of the chamber 50. Further, the X-axis is a direction orthogonal to the Y-axis and the Z-axis.

[0034] The fragrance attractor 100 according to this embodiment is configured to generate an aerosol containing a fragrance by heating, for example, a stick-shaped fragrance generating article having a fragrance source including an aerosol source.

[0035] As shown in FIGS. 1A to 1C, the fragrance attractor 100 includes an outer housing 101, a slide cover 102, a switch portion 103, and a terminal 104. The outer housing 101 constitutes the outermost housing of the fragrance attractor 100 and has a size that fits in the user's hand. When the user uses the fragrance attractor 100, the user can hold the fragrance attractor 100 by hand and suck the aerosol. The outer housing 101 may be configured by assembling a plurality of members. The outer housing 101 can be formed of a metal such as aluminum, for example. Note that the outer housing 101 may have a member formed of resin, such as polycarbonate (PC), ABS (Acrylonitrile-Butadiene-Styrene) resin, PEEK (polyetheretherketone), or a polymer alloy containing a plurality of types of polymers.

[0036] The outer housing 101 has an opening (not shown) for receiving the fragrance generating article, and the slide cover 102 is slidably attached to the outer housing 101 so as to close this opening. Specifically, the slide cover 102 is configured to be movable along the outer surface of the outer housing 101 between a closed position (the position shown in FIGS. 1A and 1B) that closes the opening of the outer housing 101 and an open position that opens the opening. For example, when the user manually operates the slide cover 102, the slide cover 102 can be moved between the closed position and the open position. Thereby, access of the fragrance generating article to the inside of the slide cover 102 and the fragrance attractor 100 can be permitted or restricted.

[0037] The switch unit 103 is used to switch on and off the operation of the fragrance attractor 100. For example, the user can operate the switch unit 103 with a fragrance generating article inserted into the fragrance attractor 100, so that power is supplied from a power source (not shown) to a heating unit (not shown), and the fragrance generating article can be heated without being burned. Note that the switch unit 103 may be a switch provided outside the outer housing 101, or may be a switch located inside the outer housing 101. When the switch is located inside the outer housing 101, the switch is indirectly pressed by pressing the switch unit 103 on the surface of the outer housing 101. In this embodiment, an example where the switch of the switch unit 103 is located inside the outer housing 101 will be described.

[0038] The terminal 104 is an interface such as a USB for connecting the fragrance attractor 100 to an external power source, for example. When the power source included in the fragrance attractor 100 is a rechargeable battery, by connecting an external power source to the terminal 104, the external power source can supply current to the power source and charge the power source. Further, the fragrance attractor 100 can be configured to be able to transmit data related to the operation of the fragrance attractor 100 to an external device by connecting a data transmission cable to the terminal 104.

[0039] Next, the flavor generating article used in the flavor attractor 100 according to the present embodiment will be described. FIG. 2 is a schematic side cross-sectional view of the flavor generating article 110. In the present embodiment, a smoking system can be configured by the flavor attractor 100 and the flavor generating article 110. In the example shown in FIG. 2, the flavor generating article 110 may include a filling portion 111 filled with smokable material, and a filter segment including a filter portion 115 and a hollow filter portion 116. The hollow filter portion 116 may be located closer to the smokable material side than the filter portion 115. Specifically, the flavor generating article 110 may be a rod-shaped non-combustion heated tobacco including a smokable material, a mouthpiece portion, and a second wrapping paper 113 such as tip paper formed by winding these. The mouthpiece portion has a cylindrical member 114 and a filter segment. The filter segment has a hollow filter portion 116 and a filter portion 115. The cylindrical member 114, which is a cooling segment, may be sandwiched adjacent to the smokable material and the filter segment with respect to the axial direction (also referred to as the "long axis direction") of the flavor generating article 110. Further, the cylindrical member 114 may be provided with apertures V concentrically in the circumferential direction of the cylindrical member 114. The apertures V provided in the cylindrical member 114 in the flavor generating article 110 are usually holes for promoting the inflow of external air by the user's suction, and the temperature of the components and air flowing in from the smokable material can be lowered by this inflow of air.

[0040] The rod-shaped flavor generating article 110 preferably has a columnar shape that satisfies a shape with an aspect ratio defined as follows of 1 or more. Aspect ratio = h / w w is the width of the bottom surface of the columnar body (in this specification, the width of the bottom surface on the smokable material side), h is the height, 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 is referred to as the long axis direction for convenience. The shape of the bottom surface is not limited and may be polygonal, rounded polygonal, circular, or elliptical, etc. The width w is the diameter when the bottom surface is circular, the major axis when it is elliptical, or the diameter of the circumscribed circle or the major axis of the circumscribed ellipse when it is polygonal or rounded polygonal.

[0041] The flavor-generating article 110 may have a first wrapper 112 that wraps the smokable material. The length of the flavor-generating article 110 in the longitudinal direction is preferably from 40 mm to 90 mm, more preferably from 50 mm to 75 mm, and even more preferably from 50 mm to 60 mm. More specifically, the length h of the flavor-generating article 110 in the major axis direction is not particularly limited. For example, it is usually 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more. Also, the length h of the flavor-generating article 110 in the major axis direction is usually 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less. The circumference of the flavor-generating article 110 is preferably from 15 mm to 25 mm, more preferably from 17 mm to 24 mm, and even more preferably from 20 mm to 23 mm. More specifically, the width w of the bottom surface of the columnar body of the flavor-generating article 110 is not particularly limited. For example, it is usually 5 mm or more, preferably 5.5 mm or more. Also, the width w of the bottom surface of the columnar body of the flavor-generating article 110 is usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less. Further, the length of the smokable material in the flavor-generating article 110 may be from 18 mm to 22 mm, the length of the first wrapper 112 may be from 18 mm to 22 mm, the length of the hollow filter portion 116 may be from 7 mm to 9 mm, and the length of the filter portion 115 may be from 6 mm to 8 mm.

[0042] The ratio of the length of the cylindrical member 114 to the length of the filter segment in the major axis direction of the flavor generating article 110 (cylindrical member 114: filter segment) is not particularly limited, but from the viewpoints of the flavor delivery amount and 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 setting the ratio of the lengths of the cylindrical member 114 and the filter segment within the above range, it is possible to suppress the cooling effect, the loss caused by the adhesion of the generated vapor and aerosol to the inner wall of the cylindrical member 114, and to balance the air volume of the filter and the flavor adjustment function, thereby realizing a good flavor and flavor intensity. In particular, when the cylindrical member 114 is lengthened, atomization of the aerosol and the like is promoted and a good flavor can be realized, but if it is too long, adhesion of the passing substances to the inner wall will occur.

[0043] The configuration of the mouthpiece portion is not particularly limited as long as the cylindrical member 114 is configured to be sandwiched adjacent to the smokable article and the filter segment with respect to the axial direction of the flavor generating article 110. In other words, the flavor generating article 110 may have the cylindrical member 114 between the smokable article and the filter segment. Hereinafter, the filter segment and the cylindrical member 114 will be described in detail.

[0044] (Disclosure regarding the filter segment) The filter segment includes a filter portion 115 and is not particularly limited as long as it has the function of a general filter. The general functions of the filter include, for example, adjustment of the amount of air mixed when sucking an aerosol or the like, reduction of flavor, reduction of nicotine and tar, etc., but it is not necessary to have all of these functions. Also, in an electrically heated tobacco product in which the generated components are fewer and the filling rate of the tobacco filler tends to be lower compared to a cigarette product, preventing the fall of the tobacco filler while suppressing the filtering function is also one of the important functions.

[0045] Disclosure regarding dimensions The circumferential cross-sectional shape of the filter segment 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 the diameter of a circle assumed to have the same area as the area of the cross-section. The length of the circumference of the circumferential cross-sectional shape of the filter segment 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 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 unit 115 can be appropriately adjusted so that the shape and dimensions of the filter segment are within the above ranges.

[0046] Disclosure regarding the filter unit 115 The filter unit 115 that constitutes the filter segment may use, for example, those manufactured by the manufacturing method described later or commercially available products. Also, the form of the filter segment is not particularly limited, and may be, for example, a plane filter including a single filter segment, a multi-segment filter including a plurality of filter segments such as a dual filter or a triple filter. The filter segment can be manufactured by a known method. For example, when using synthetic fibers such as cellulose acetate tow as the material of the filter unit 115, it can be manufactured by spinning a polymer solution containing a polymer and a solvent and then crimping it. As this method, for example, the method described in International Publication No. 2013 / 067511 can be used. In the manufacture of the filter segment, adjustment of the air permeability resistance and addition of additives (known adsorbents, fragrances (e.g., menthol), granular activated carbon, fragrance holding materials, etc.) to the filter unit 115 can be appropriately designed. The form of the filter unit 115 that constitutes the filter segment is not particularly limited, and a known form may be adopted. For example, those obtained by processing cellulose acetate tow into a cylindrical shape can be mentioned. The fineness per single filament and the total fineness of cellulose acetate tow are not particularly limited, but in the case of a mouthpiece part with a circumference of 22 mm, the fineness per single filament 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. Examples of the cross-sectional shape of the fibers of cellulose acetate tow include circular, elliptical, Y-shaped, I-shaped, R-shaped, etc. In the case of the filter unit 115 filled with cellulose acetate tow, triacetin (plasticizer) may be added in an amount of 5% by weight or more and 10% by weight or less based on the weight of the cellulose acetate tow in order to improve the filter hardness. Also, instead of the acetate filter, a paper filter filled with sheet-like pulp paper may be used.

[0047] (Disclosure regarding the hollow filter unit 116) The filter segment may include a hollow filter portion 116 having one or more hollow portions. The hollow filter portion 116 is usually disposed closer to the cylindrical member 114 side than the filter portion 115, and is preferably disposed adjacent to the cylindrical member 114.

[0048] The hollow filter portion 116 is composed of a filling layer having one or more hollow portions and an inner plug wrapper (inner winding paper) covering the filling layer. The hollow portion can be provided at any position of the hollow filter portion 116. The hollow filter portion 116 has a function of enhancing the strength of the mouthpiece portion. The filling layer can be, for example, a rod in which cellulose acetate fibers are densely filled and a plasticizer containing triacetin is added in an amount of 6% by mass or more and 20% by mass or less based on the mass of the cellulose acetate and cured. The inner diameter of the hollow filter portion 116 can be φ1.0 mm or more and φ5.0 mm or less. Since the filling density of the fiber in the filling layer is high, during suction, air and aerosol will flow only through the hollow portion, and hardly flow through the filling layer. Since the filling layer inside the hollow filter portion 116 is a fiber filling layer, the feel from the outside during use is less likely to cause discomfort to the user. Note that the hollow filter portion 116 may not have an inner plug wrapper and its shape may be maintained by thermoforming. The hardness of the hollow filter portion 116 is preferably greater than the hardness of the filter portion 115. Specifically, the mass percentage of the plasticizer contained in the hollow filter portion 116 is preferably greater than the mass percentage of the plasticizer contained in the filter portion 115. In the flavor generating article 110, when it is desired to reduce the decrease in the aerosol component due to filtration in the filter portion 115, shortening the length of the filter portion 115 and replacing it with the hollow filter portion 116 is effective for increasing the delivery amount of the aerosol.

[0049] (Disclosure regarding filter density) The density of the filter portion 115 is not particularly limited, but is usually 0.10 g / cm 3 or more and 0.25 g / cm 3 or less, and 0.11 g / cm 3 or more and 0.24 g / cm 3It is preferably as follows, 0.12 g / cm 3 or more, and more preferably 0.23 g / cm 3 or less.

[0050] (Disclosure regarding the filter wrapper (inner and outer winding papers)) From the viewpoint of improving strength and structural rigidity, the filter segment may include a winding paper (filter plug winding paper) for winding the above-mentioned filter part 115, etc. The form of the winding paper is not particularly limited, and it may include a seam containing one or more rows of adhesive. The adhesive may include a hot melt adhesive, and further the hot melt adhesive may include polyvinyl alcohol. Also, when the filter segment is composed of two or more segments, it is preferable that the winding paper winds these two or more segments together. The material of the winding paper is not particularly limited, and known materials can be used, and it may include fillers such as calcium carbonate. The thickness of the winding paper 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 winding paper is not particularly limited, and is usually 20 gsm or more and 100 gsm or less, preferably 22 gsm or more and 95 gsm or less, and more preferably 23 gsm or more and 90 gsm or less. Also, the winding paper may or may not be coated, but from the viewpoint of imparting functions other than strength and structural rigidity, it is preferably coated with a desired material.

[0051] The hollow filter part 116 and the filter part 115 may be connected, for example, by an outer plug wrapper (outer winding paper). The outer plug wrapper can be, for example, a cylindrical paper. Also, the smokable article, the cylindrical member 114, and the connected hollow filter part 116 and filter part 115 may be connected, for example, by a mouthpiece lining paper (second winding paper 113). These connections can be made, for example, by applying an adhesive such as vinyl acetate-based adhesive to the inner surface of the mouthpiece lining paper, and then inserting and winding the smokable article, the cylindrical member 114, and the connected hollow filter part 116 and filter part 115. Note that these may be connected multiple times using a plurality of lining papers.

[0052] (Disclosure regarding addition of activated carbon) Activated carbon may be added to at least a part of the filter part 115. The addition amount of activated carbon is, for one flavor generating article 110, the value of the specific surface area of the activated carbon × the weight of the activated carbon / the cross-sectional area perpendicular to the ventilation direction of the filter part 115, which is 15.0 m 2 / cm 2 or more and 80.0 m 2 / cm 2The following is the case. For the sake of convenience, the above “specific surface area of activated carbon × weight of activated carbon / cross-sectional area in the direction perpendicular to the air flow direction of the filter part 115” may be expressed as “surface area of activated carbon per unit cross-sectional area”. The surface area of activated carbon per unit cross-sectional area can be calculated based on the specific surface area of the activated carbon added to the filter part 115 of one flavor-generating article 1101, the weight of the added activated carbon, and the cross-sectional area of the filter part 115. Note that the activated carbon may not be uniformly dispersed in the filter part 115 to which it is added, and it is not required to satisfy the above range in all cross-sections (cross-sections in the direction perpendicular to the air flow direction) of the filter part 115. When the surface area of activated carbon per unit cross-sectional area is within the above range, the components generated by heating can be delivered to the user in a desired amount, and a desired flavor sensation can be given to the user. If the surface area of activated carbon per unit cross-sectional area is smaller than the lower limit of the above range, the effect of adding activated carbon cannot be sufficiently obtained. On the other hand, if the surface area of activated carbon per unit cross-sectional area is larger than the upper limit of the above range, the components generated by heating will be reduced more than necessary.

[0053] The surface area of activated carbon per unit cross-sectional area is preferably 17.0 m 2 / cm 2 or more, and more preferably 35.0 m 2 / cm 2 or more. On the other hand, it is preferably 77.0 m 2 / cm 2 or less, and more preferably 73.0 m 2 / cm 2 or less. The surface area of activated carbon per unit cross-sectional area can be adjusted, for example, by adjusting the specific surface area of the activated carbon, its addition amount, and the cross-sectional area in the direction perpendicular to the air flow direction of the filter part 115. The calculation of the surface area of activated carbon per unit cross-sectional area described above is calculated based on the filter part 115 to which the activated carbon is added. When the filter segment is composed of a plurality of filter parts 115, the cross-sectional area and length of only the filter part 115 to which the activated carbon is added are used as the reference.

[0054] Examples of the activated carbon that can be used in this embodiment include those made from raw materials such as wood, bamboo, coconut shells, walnut shells, and coal. Further, as the activated carbon that can be used in this embodiment, those with a BET specific surface area of 1100 m 2 / g or more and 1600 m 2 / g or less can be used, preferably those with a BET specific surface area of 1200 m 2 / g or more and 1500 m 2 / g or less can be used, and more preferably, those with a BET specific surface area of 1250 m 2 / g or more and 1380 m 2 / g or less can be used. The BET specific surface area can be determined by the nitrogen gas adsorption method (BET multipoint method). Further, as the activated carbon that can be used in this embodiment, those with a pore volume of 400 μL / g or more and 800 μL / g or less can be used, more preferably those with a pore volume of 500 μL / g or more and 750 μL / g or less can be used, and even more preferably, those with a pore volume of 600 μL / g or more and 700 μL / g or less can be used. The pore volume can be calculated from the maximum adsorption amount obtained using the nitrogen gas adsorption method.

[0055] In this embodiment, the amount of activated carbon added per unit length in the air flow direction of the filter unit 115 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. In this embodiment, by setting the specific surface area of the activated carbon and the amount of activated carbon added within the above ranges, the surface area of the activated carbon per unit cross-sectional area can be adjusted to a desired value. Further, as the activated carbon that can be used in this embodiment, it is preferable that the cumulative 10 volume% particle diameter (particle diameter D10) of the activated carbon particles is 250 μm or more and 1200 μm or less. Also, the cumulative 50 volume% particle diameter (particle diameter D50) of the activated carbon particles is preferably 350 μm or more and 1500 μm or less. Note that D10 and D50 are measured by the laser diffraction scattering method. As an apparatus suitable for this measurement, the laser diffraction / scattering type particle size distribution measuring apparatus "LA-950" manufactured by Horiba, Ltd. can be mentioned. In the cell of this apparatus, powder is flowed in together with pure water, and the particle diameter is detected based on the light scattering information of the particles. The measurement conditions by this apparatus are as follows. Measurement mode: Manual flow-through cell measurement Dispersion medium: Ion-exchanged water Dispersion method: Measurement after irradiating with ultrasonic waves for 1 minute Refractive index: 1.92 - 0.00i (sample refractive index) / 1.33 - 0.00i (dispersion medium refractive index) Number of measurements: Measure twice by changing the sample

[0056] In this embodiment, the method of adding activated carbon to the filter unit 115 is not particularly limited, and it may be added so as to be substantially uniformly dispersed in the filter unit 115 to which the activated carbon is added. Note that, for example, a filter segment manufactured by a known manufacturing method may be used, or a commercially available product may be used. Further, the form of the filter segment is not particularly limited, and it may be a filter including a single filter segment, a multi-segment filter including a plurality of filter segments such as a dual filter or a triple filter, or the like. When it is composed of a single filter segment, the filter unit 115 to which the activated carbon is added becomes the filter segment as it is. On the other hand, when it is composed of a plurality of filter segments, the filter unit 115 to which the activated carbon is added is preferably disposed upstream of the filter unit 115 constituting the suction port end. On the other hand, activated carbon may be added to the filter unit 115 constituting the suction port end. Note that, when the filter segment is a multi-segment filter, the length of the filter segment serving as a reference for the addition amount of the activated carbon is the length of the filter unit 115 to which the activated carbon is added. The addition amount of the activated carbon can be, for example, 4.0 mg or more and 24.0 mg or less as the weight with respect to the entire filter segment, preferably 4.5 mg or more and 23.0 mg or less, and more preferably 10.5 mg or more and 22.0 mg or less.

[0057] (Disclosure regarding the cylindrical member 114) The cylindrical member 114 can be sandwiched adjacent to the smokable article and the filter segment. The cylindrical member 114 generally includes a rod-shaped or cylindrical member provided with a cavity having a hollow (void) cross section in the circumferential direction such as a cylinder.

[0058] (Disclosure regarding the dimensions of the cylindrical member 114) The length of the cylindrical member 114 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, more preferably 25 mm or more, and is usually 40 mm or less, preferably 35 mm or less, more preferably 30 mm or less. By setting the length of the cylindrical member 114 in the major axis direction to be equal to or greater than the above lower limit, a sufficient cooling effect can be ensured to obtain a good flavor, and by setting it to be equal to or less than the above upper limit, loss can be suppressed by adhesion of the generated vapor and aerosol to the inner wall of the cylindrical member 114.

[0059] A sheet or the like for cooling may be filled in the cylindrical member 114. The total surface area of the cylindrical member 114 is not particularly limited, and for example, it can be 300 mm 2 / mm or more and 1000 mm 2 / mm or less. This surface area is the surface area per unit length (mm) in the ventilation direction of the cylindrical member 114. The total surface area of the cylindrical member 114 is preferably 400 mm 2 / mm or more, more preferably 450 mm 2 / mm or more. On the other hand, it is preferably 600 mm 2 / mm or less, more preferably 550 mm 2 / mm or less. It is desirable that the cylindrical member 114 has a large total surface area with a large internal structure. Therefore, in a preferred embodiment, the cylindrical member 114 may be wrinkled to form channels and then may include a sheet of folded, pleated, and gathered thin material. A large number of folds or pleats within a given volume of the element increases the total surface area of the cylindrical member 114. The thickness of the constituent material of the cylindrical member 114 is not particularly limited, and for example, it may be 5 μm or more and 500 μm or less, or may be 10 μm or more and 250 μm or less.

[0060] (Disclosure regarding smokable articles) The form of the smokable article is not particularly limited as long as it is a known form, but is usually a form in which a tobacco filler is wrapped with a wrapping paper (the first wrapping paper 112). The tobacco filler is not particularly limited, and the first tobacco filler or the second tobacco filler described later can be used. In the present specification, a molded product of dried tobacco such as tobacco shreds, tobacco sheets, tobacco granules, etc., described later may be simply referred to as "dried tobacco leaves". Further, the smokable article may have a fitting portion with a heater member or the like for heating the tobacco product.

[0061] (Disclosure regarding the dimensions of the smokable article) The smokable article formed by wrapping a tobacco filler with a wrapping paper preferably has a columnar shape. In this case, the aspect ratio represented by the height in the major axis direction of the smokable article with respect to the width of the bottom surface of the smokable article is preferably 1 or more. The shape of the bottom surface is not limited and may be polygonal, rounded polygonal, circular, elliptical, etc. The width is the diameter when the bottom surface is circular, the major axis when it is elliptical, and the diameter of the circumscribed circle or the major axis of the circumscribed ellipse when it is polygonal or rounded polygonal. The height of the tobacco filler constituting the smokable article is preferably about 10 mm to 70 mm, and the width is preferably about 4 mm to 9 mm.

[0062] The length in the major axis direction of the smokable article can be appropriately changed according to the size of the product, but is usually 10 mm or more, preferably 12 mm or more, more preferably 15 mm or more, still more preferably 18 mm or more. Also, it is usually 70 mm or less, preferably 50 mm or less, more preferably 30 mm or less, still more preferably 25 mm or less. Further, the ratio of the length of the smokable article to the overall length h in the major axis direction of the flavor generating article 110 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, still more preferably 30% or more. Also, it is usually 80% or less, preferably 70% or less, more preferably 60% or less, still more preferably 50% or less, particularly preferably 45% or less, and most preferably 40% or less.

[0063] (Disclosure regarding filling amount) The content of dried tobacco leaves in the smokable article is not particularly limited, but may be 200 mg / 1 smokable article or more and 800 mg / 1 smokable article or less, preferably 250 mg / 1 smokable article or more and 600 mg / 1 smokable article or less. This range is particularly suitable for a smokable article having a circumference of 22 mm and a length of 20 mm.

[0064] (Disclosure regarding filler (the first tobacco filler: notch filling)) First, the first tobacco filler (also simply referred to as the "first filler") will be described. The material of the tobacco chips (flavor source) contained in the first filler is not particularly limited, and tobacco such as lamina or midrib, or other known plants can be used. Further, the shape of the flavor source such as tobacco may be in the form of chips, sheets, strings, powders, granules, pellets, slurries, or porous forms. Specifically, for example, dried tobacco leaves may be pulverized so that the average particle size becomes 20 μm or more and 200 μm or less to obtain a tobacco pulverized product, and a sheet processed from this homogenized product (hereinafter also simply referred to as a homogenized sheet) may be notched. Further, a so-called strand type in which a homogenized sheet having a length approximately the same as the longitudinal direction of the smokable article is notched substantially horizontally with respect to the longitudinal direction of the smokable article and filled into the smokable article may be used. Further, a gathered product obtained by gathering the above sheet-processed product without notching may be used as the smokable article. Further, the width of the tobacco notch is preferably 0.5 mm or more and 2.0 mm or less for filling into the smokable article. The range of the content of the smokable article such as tobacco in the flavor generating article 110 is, for example, 200 mg to 400 mg, preferably 250 mg to 320 mg when the size of the smokable article is a circumference of 20 mm to 23 mm and a length of 18 mm to 22 mm.

[0065] Regarding the tobacco leaves used for producing the above-mentioned tobacco shredding and homogenizing sheets, various types of tobacco can be used. For example, yellow tobacco, burley tobacco, oriental tobacco, native tobacco, other Nicotiana tabacum varieties, Nicotiana rustica varieties, and mixtures thereof can be mentioned. For the mixtures, each of the above varieties can be appropriately blended and used according to the desired taste. The details of the above tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Comprehensive Research Center, March 31, 2009". Regarding the manufacturing method of the above homogenizing sheet, that is, the method of processing tobacco leaves into a homogenizing sheet by pulverizing, there are multiple conventional methods. The first is the method of producing a paper sheet using a papermaking process. The second is a method in which an appropriate solvent such as water is mixed with the pulverized tobacco leaves and homogenized, and then the homogenized product is thinly cast onto a metal plate or a metal plate belt and dried to produce a cast sheet. The third is a method in which an appropriate solvent such as water is mixed with the pulverized tobacco leaves and homogenized, and then extruded and molded into a sheet shape to produce a rolled sheet. The details of the above homogenizing sheet types are disclosed in "Tobacco Encyclopedia, Tobacco Comprehensive Research Center, March 31, 2009".

[0066] The moisture content of the tobacco filler can be 8% by weight or more and 18% by weight or less, preferably 10% to 16% by weight, more preferably 10% to 15% by weight, and even more preferably 11% to 13% by weight based on the total amount of the tobacco filler. With such a moisture content, the occurrence of draw is suppressed and the winding suitability during the production of smokable articles is improved. Also, the flavor generating article 110 is more likely to be appropriately deformed according to the cross-sectional shape of the holding part. There are no particular restrictions on the size of the tobacco cuts and the preparation method thereof included in the first tobacco filler. For example, dried tobacco leaves cut to a width of 0.5 mm or more and 2.0 mm or less may be used, preferably those cut to a width of 0.8 mm or more and 1.2 mm or less. Also, when using the pulverized product of the homogenizing sheet, dried tobacco leaves are pulverized and homogenized so that the average particle size is about 20 μm to 200 μm, then processed into a sheet, and those cut to a width of 0.5 mm or more and 2.0 mm or less, preferably those cut to a width of 0.8 mm or more and 1.2 mm or less may be used.

[0067] The first tobacco filler may contain an aerosol base material that generates aerosol smoke. The type of the aerosol base material is not particularly limited, and various extract substances from natural products and / or their constituent components can be selected according to 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 filler (weight % based on the weight of the first tobacco filler) is not particularly limited, and is usually 5% by weight or more, preferably 10% by weight or more, and usually 50% by weight or less, preferably 15% to 25% by weight based on the total amount of the tobacco filler from the viewpoints of sufficiently generating aerosol and imparting a good flavor.

[0068] The first tobacco filler may contain a fragrance. The type of the fragrance is not particularly limited, and may be the same fragrance as the above-described fragrance added to the filter part 115 from the viewpoint of imparting a good flavor.

[0069] The content of the fragrance in the first tobacco filler is not particularly limited, and from the viewpoint of imparting a good fragrance, it is usually 10,000 ppm or more, preferably 20,000 ppm or more, more preferably 25,000 ppm or more, and 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.

[0070] The packing density in the first tobacco filler is not particularly limited, but to ensure the performance of the fragrance generating article 110 and from the viewpoint of imparting a good fragrance, it is usually 250 mg / cm 3 or more, preferably 300 mg / cm 3 or more, and usually 400 mg / cm 3 or less, preferably 350 mg / cm 3 or less. The above-mentioned first tobacco filler is wrapped with a rolling paper so as to be inside to form a smokable article.

[0071] (Disclosure regarding the filler (second tobacco filler: sheet filler)) The second tobacco filler is composed of a tobacco sheet filled in the object to be filled. The number of tobacco sheets may be 1 sheet or 2 sheets or more. As an aspect when the second tobacco filler is composed of 1 tobacco sheet, for example, a tobacco sheet having one side with a length similar to the longitudinal direction of the object to be filled is horizontally folded back a plurality of times in the longitudinal direction of the object to be filled in a filling mode (so-called gather sheet). Also, an aspect in which a tobacco sheet having one side with a length similar to the longitudinal direction of the object to be filled is filled in a state of being wound around in a direction orthogonal to the longitudinal direction of the object to be filled is also included.

[0072] As an aspect where the second tobacco filler is composed of two or more tobacco sheets, for example, a plurality of tobacco sheets, one side of which has a length approximately the same as the longitudinal direction of the object to be filled, are wound in a direction orthogonal to the longitudinal direction of the object to be filled so as to be concentrically arranged and then filled. "Concentrically arranged" means that the centers of all the tobacco sheets are arranged at substantially the same position. Also, the number of tobacco sheets is not particularly limited, and examples include two, three, four, five, six, or seven sheets. The 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. Also, the thickness of each tobacco sheet may be the same or different.

[0073] The second tobacco filler can be manufactured by preparing a plurality of tobacco sheets with different widths, preparing a laminate laminated so that the width decreases from the bottom to the top, and passing this through a winding tube and winding it up to form a shape. According to this manufacturing method, the plurality of tobacco sheets extend in the longitudinal direction and are arranged concentrically around the longitudinal axis. Also, a fitting portion extending in the longitudinal direction may be formed between the longitudinal axis and the innermost tobacco sheet.

[0074] In this manufacturing method, it is preferable that the laminate is prepared such that a non-contact portion is formed between the adjacent tobacco sheets after winding and forming. When there is a non-contact portion (gap) where the tobacco sheets do not contact between a plurality of tobacco sheets, a flavor flow path can be secured and the delivery efficiency of flavor components can be enhanced. On the other hand, since heat from the heater can be transmitted to the outer tobacco sheet through the contact portions of the plurality of tobacco sheets, high heat transfer efficiency can be ensured. In order to provide a non-contact portion where the tobacco sheets do not contact between a plurality of tobacco sheets, for example, using an embossed tobacco sheet, laminating without adhering the entire surfaces of adjacent tobacco sheets, laminating by adhering a part of adjacent tobacco sheets, or laminating by lightly adhering the entire surface or a part of adjacent tobacco sheets so as to be peeled off after winding and forming can be mentioned as a method for preparing the laminate. When preparing a smokable product including cigarette paper, the above cigarette paper may be disposed at the bottommost part of the laminate. Further, after placing a cylindrical dummy such as a mandrel on the topmost part of the laminate to form a second tobacco filler and then removing the dummy, a fitting portion can also be formed.

[0075] The filling density of the second tobacco filler is not particularly limited, but from the viewpoint of ensuring the performance of the tobacco product and imparting a good flavor, it is usually 250 mg / cm 3 or more, preferably 300 mg / cm 3 or more, and usually 400 mg / cm 3 or less, preferably 350 mg / cm 3 or less.

[0076] The tobacco sheet may contain an aerosol base material that generates aerosol smoke upon heating. An aerosol source such as a polyol such as glycerin, propylene glycol, 1,3 - butanediol is added as the aerosol base material. The addition amount of such an aerosol base material 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.

[0077] The tobacco sheet can be appropriately manufactured by known methods such as papermaking, slurry, rolling, etc. Note that the homogenized sheet described in the first tobacco filler can also be used. In the case of papermaking, it can be manufactured by a method including the following steps. 1) Coarsely crush the dried tobacco leaves, extract them with water, and separate them into a water extract and a residue. 2) Concentrate the water extract by drying it under reduced pressure. 3) Add pulp to the residue, fiberize it with a refiner, and then paper-making. 4) Add the concentrated solution of the water extract to the paper-made sheet and dry it to obtain a tobacco sheet. In this case, a step of removing some components such as nitrosoamines may be added (see Japanese Patent Application Laid-Open No. 2004-510422). In the case of the slurry method, it can be manufactured by a method including the following steps. 1) Mix water, pulp, a binder, and crushed tobacco leaves. 2) Spread the mixture thinly (cast it) and dry it. In this case, a step of removing some components such as nitrosoamines may be added by irradiating the slurry obtained by mixing water, pulp, a binder, and crushed tobacco leaves with ultraviolet rays or X-rays.

[0078] In addition, as described in International Publication No. 2014 / 104078, a non-woven tobacco sheet produced by a method including the following steps can also be used. 1) Mix granular tobacco leaves and a binder. 2) Sandwich the mixture with a non-woven fabric. 3) Mold the laminate into a certain shape by heat welding to obtain a non-woven tobacco sheet. The type of tobacco leaf as the raw material used in each of the above methods can be the same as that described for the first filler. The composition of the tobacco sheet is not particularly limited. For example, the content of the tobacco raw material (tobacco leaf) is preferably 50% by weight or more and 95% by weight or less based on the total weight of the tobacco sheet. The tobacco sheet may also contain a binder. Examples of such binders include guar gum, xanthan gum, CMC (carboxymethyl cellulose), CMC-Na (sodium salt of carboxymethyl cellulose), and the like. The amount of the binder is preferably 1% by weight or more and 10% by weight or less based on the total weight of the tobacco sheet. The tobacco sheet may further contain other additives. Examples of the additives include fillers such as pulp. In this embodiment, a plurality of tobacco sheets are used, and such 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.

[0079] The second tobacco filler can be manufactured by preparing a plurality of tobacco sheets with different widths, stacking them so that the width decreases from the bottom to the top, and passing this stack through a winding tube and winding it up for shaping. According to this manufacturing method, the plurality of tobacco sheets extend in the longitudinal direction and are arranged concentrically around the longitudinal axis. Further, a fitting portion extending in the longitudinal direction may be formed between the longitudinal axis and the innermost tobacco sheet. In this manufacturing method, it is preferable that the laminate is prepared so that a non-contact portion is formed between the adjacent tobacco sheets after the winding-up shaping. If there is a non-contact portion (gap) where the tobacco sheets do not contact between the plurality of tobacco sheets, a flavor flow path can be secured and the delivery efficiency of flavor components can be enhanced. On the other hand, when the tobacco product is used in an electrically heated tobacco product, heat from the heater can be transmitted to the outer tobacco sheet through the contact portions of the plurality of tobacco sheets, so high heat transfer efficiency can be ensured.

[0080] In order to provide a non-contact portion where the tobacco sheets do not contact between the plurality of tobacco sheets, for example, using embossed tobacco sheets, stacking adjacent tobacco sheets without bonding the entire surfaces, bonding a part of adjacent tobacco sheets and stacking them, or bonding the entire or part of adjacent tobacco sheets lightly so that they can be peeled off after the winding-up shaping and then stacking them to prepare a laminate. When preparing a smokable article including cigarette paper, the above cigarette paper may be disposed at the bottommost part of the laminate. Also, after placing a cylindrical dummy such as a mandrel on the topmost part of the laminate to form the second tobacco filler and then removing the dummy, a fitting portion can be formed. The thickness of each tobacco sheet is not limited, but from 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 thicknesses of the respective tobacco sheets may be the same or different. The number of tobacco sheets constituting the second tobacco filler is not particularly limited, and examples thereof include 2 sheets, 3 sheets, 4 sheets, 5 sheets, 6 sheets, or 7 sheets.

[0081] (Disclosure Regarding Wrapping Paper) The flavor-generating article 110 may have a second wrapping paper 113 different from the first wrapping paper 112 that wraps at least one of the cylindrical member 114, the hollow filter part 116, and the filter part 115. The second wrapping paper 113 may wrap a part of the first wrapping paper 112 that wraps the smokable article. The configuration of the wrapping paper (hereinafter, including the first wrapping paper 112 or the second wrapping paper 113) is not particularly limited and can be in a general form. For example, those mainly composed of pulp can be mentioned. As the pulp, in addition to being made from wood pulp such as softwood pulp and hardwood pulp, it may also be obtained by mixing and manufacturing with non-wood pulp generally used for wrapping paper for tobacco products, such as flax pulp, hemp pulp, sisal pulp, and esparto. As the type of pulp, chemical pulp such as kraft sulfate pulping method, acidic / neutral / alkali sulfite pulping method, and soda salt pulping method, ground pulp, chemiground pulp, thermomechanical pulp, etc. can be used.

[0082] Using the above pulp, in the papermaking process by a fourdrinier paper machine, a cylinder paper machine, a cylinder and short composite paper machine, etc., the formation is adjusted and made uniform to manufacture the wrapping paper. In addition, if necessary, a wet paper strength enhancer can be added to impart water resistance to the wrapping paper, or a sizing agent can be added to adjust the printing condition of the wrapping paper. Furthermore, internal additives for papermaking such as sulfate bands, various anionic, cationic, nonionic, or amphoteric yield improvers, drainage improvers, and paper strength enhancers, as well as paper-making additives such as dyes, pH adjusters, defoamers, pitch control agents, and slime control agents can be added.

[0083] The basis weight of the base paper for the roll paper is, for example, usually 20 gsm or more, preferably 25 gsm or more. On the other hand, the basis weight is usually 65 gsm or less, preferably 50 gsm or less, more preferably 45 gsm or less. The thickness of the roll paper having the above characteristics is not particularly limited, and from the viewpoints of rigidity, air permeability, and ease of adjustment during papermaking, it is usually 10 μm or more, preferably 20 μm or more, more preferably 30 μm or more, and is usually 100 μm or less, preferably 75 μm or less, more preferably 50 μm or less. As the roll paper of the fragrance-generating article 110, the shape can be a square or a rectangle. When used as a roll paper for wrapping a tobacco filler (for producing a smokable article), 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 the tobacco filler is wound into a columnar shape with the roll paper, for example, by overlapping the end of the roll paper in the width direction and the opposite end by about 2 mm and pasting them, it becomes the shape of a columnar paper tube, and the tobacco filler is filled therein. The size of the rectangular roll paper can be determined by the size of the resulting smokable article. In the case of a chip paper that connects and wraps smokable articles and other members adjacent to the smokable articles, the length of one side can be 20 mm to 60 mm, and the length of the other side can be 15 mm to 28 mm.

[0084] In addition to the above pulp, the tissue paper may contain a filler. The filler content can 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 tissue paper. In the tissue paper, in the preferred basis weight range (25 gsm or more and 45 gsm or less), it is preferable that the filler is 15% by weight or more and 45% by weight or less. Further, when the basis weight is 25 gsm or more and 35 gsm or less, it is preferable that the filler is 15% by weight or more and 45% by weight or less, and when the basis weight exceeds 35 gsm and is 45 gsm or less, it is preferable that the filler is 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 viewpoints of enhancing fragrance and whiteness. The paper containing such fillers exhibits a bright white color, which is preferable from the viewpoint of appearance for use as the tissue paper of the fragrance-generating article 110, and can maintain whiteness permanently. By containing a large amount of such fillers, for example, the ISO whiteness of the tissue paper can be made 83% or more. Also, from the practical viewpoint of using it as the tissue paper of the fragrance-generating article 110, the first tissue paper 112 and the second tissue paper 113 preferably have a tensile strength of 8 N / 15 mm or more. Thereby, the tissue paper is less likely to be damaged even when pulling out the fragrance-generating article 110 held in the holding portion. This tensile strength can be increased by reducing the filler content. Specifically, the tensile strength can be increased by making the filler content less than the upper limit of the filler content shown in the above-exemplified basis weight ranges.

[0085] Various auxiliaries other than the base paper and fillers may be added to the toilet paper. For example, a water resistance improver can be added to improve water resistance. The water resistance improver includes a wet strength enhancer (WS agent) and a sizing agent. Examples of the wet strength enhancer 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), polyvinyl alcohol with a saponification degree of 90% or more, etc. As an auxiliary agent, a paper strength enhancer may be added, for example, polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, etc. In particular, it is known that the air permeability is improved by using a very small amount of oxidized starch (Japanese Patent Laid-Open No. 2017-218699). Also, the toilet paper may be appropriately coated.

[0086] The coating agent may be added to at least one of the front and back surfaces of the toilet paper. The coating agent is not particularly limited, but a coating agent that can form a film on the surface of the paper and reduce the liquid permeability is preferred. For example, alginic acid and its salts (e.g., sodium salt), polysaccharides such as pectin, ethyl cellulose, methyl cellulose, carboxymethyl cellulose, cellulose derivatives such as nitrocellulose, starch and its derivatives (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch and cationic starch, ester derivatives such as acetic starch, phosphoric starch and octenyl succinic anhydride starch) can be mentioned.

[0087] (Disclosure regarding chip paper (second toilet paper 113)) The structure of the chip paper is not particularly limited and can be in a general form. For example, those with pulp as the main component can be mentioned. As the pulp, in addition to being made from wood pulp such as softwood pulp and hardwood pulp, it may also be obtained by mixing and manufacturing with non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and esparto, which are generally used for cigarette papers. These pulps may be used alone or in combination of multiple types in any ratio. Also, the chip paper may be composed of one sheet or multiple sheets. As the form of the pulp, chemical pulp such as kraft sulfate pulping, acid / neutral / alkali sulfite pulping, soda salt pulping, ground pulp, chemiground pulp, thermomechanical pulp, etc. can be used. Note that the chip paper may be manufactured by the manufacturing method described later or may use commercially available products. The shape of the chip paper is not particularly limited and can be, for example, square or rectangular.

[0088] The basis weight of the chip paper is not particularly limited, but it 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 chip paper is not particularly limited, but it is usually 0 Coresta units or more and 30000 Coresta units or less, preferably more than 0 Coresta units and 10000 Coresta units or less. The air permeability is a value measured in accordance with ISO 2965:2009 and is represented by the flow rate (cm 2 ) of the gas passing through an area of 1 cm 3 per minute when the differential pressure between both sides of the paper is 1 kPa. 1 Coresta unit (1 Coresta unit, 1 C.U.) is cm 3 / (min·cm 2 ) under 1 kPa.

[0089] In addition to the above-mentioned pulp, the chip paper 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 to contain calcium carbonate from the viewpoints of improving whiteness and opacity and increasing the heating rate. These fillers may be used alone or in combination of two or more kinds.

[0090] In addition to the above-mentioned pulp and fillers, various auxiliaries may be added to the chip paper. For example, in order to improve water resistance, a water resistance improver can be included. The water resistance improver includes a wet paper strength enhancer (WS agent) and a sizing agent. Examples of the wet paper strength enhancer 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), polyvinyl alcohol with a saponification degree of 90% or more, etc.

[0091] A coating agent may be added to at least one of the front and back surfaces of the chip paper. There is no particular limitation on the coating agent, but a coating agent that can form a film on the surface of the paper and reduce the liquid permeability is preferable.

[0092] The configuration of the flavor generating article 110 according to this aspect can be used in an electrically heated tobacco product, but can also be applied to cigarettes (rolled tobacco) involving combustion. A part of the outer surface of the tip paper may be coated with the lip release material 117. The lip release material 117 means a material configured to assist the contact between the lip and the tip paper to easily separate without substantially sticking when the user holds the mouthpiece portion of the flavor generating article 110 in the mouth. The lip release material 117 may contain, for example, ethyl cellulose, methyl cellulose, etc. For example, the outer surface of the tip paper may be coated with the lip release material 117 by applying an ethyl cellulose-based or methyl cellulose-based ink to the outer surface of the tip paper.

[0093] In this aspect, the lip release material 117 of the tip paper is at least disposed in a predetermined suction port area that contacts the user's lip when the user holds the mouthpiece portion. More specifically, among the outer surfaces of the tip paper, the lip release material arrangement area coated with the lip release material 117 is defined as an area located between the suction port end of the mouthpiece portion and the ventilation hole.

[0094] Next, the internal structure of the fragrance attractor 100 will be described. FIG. 3 is a cross-sectional view of the fragrance attractor 100 taken along the arrow 3-3 shown in FIG. 1B. As shown in FIG. 3, inside the outer housing 101 of the fragrance attractor 100, a placement portion 10 is provided on which objects to be accommodated such as the power supply unit 20 and the atomization unit 30 described later are placed. The placement portion 10 is made of, for example, resin, and in particular, can be formed of polycarbonate (PC), ABS (Acrylonitrile-Butadiene-Styrene) resin, PEEK (polyetheretherketone), or a polymer alloy containing multiple types of polymers. Note that the placement portion 10 may include a portion formed of a metal such as aluminum. Here, from the viewpoints of heat resistance, processability, and strength, the placement portion 10 is preferably made of polycarbonate. In the internal space of the placement portion 10, a power supply unit 20 and an atomization unit 30 are provided. Note that the power supply unit 20 and the atomization unit 30 cannot be replaced after the fragrance attractor 100 is assembled. Also, the outer housing 101 and the placement portion 10 together may be referred to as a housing.

[0095] The power supply unit 20 has a power supply 21. The power supply 21 can be, for example, a rechargeable battery or a non-rechargeable battery. The power supply 21 is electrically connected to the atomization unit 30. Thereby, the power supply 21 can supply power to the atomization unit 30 so as to appropriately heat the fragrance generating article 110.

[0096] As shown in the figure, the atomization unit 30 has a chamber 50 (corresponding to an example of an accommodation portion) that extends in the insertion direction (Z-axis direction) of the fragrance generating article 110, a heating unit 40 that is arranged along the axial direction (Z-axis direction) of the chamber 50 and covers a part of the chamber 50, a heat insulating portion 32, and a substantially cylindrical insertion guide member 34. The chamber 50 is configured to accommodate the fragrance generating article 110. On the inner peripheral surface of the chamber 50, a boss (corresponding to an example of a gripping portion and a protrusion) (not shown) for gripping the accommodated fragrance generating article 110 is provided. Details of the boss will be described later.

[0097] The heating unit 40 is configured to contact the outer peripheral surface of the chamber 50 and heat the flavor generating article 110 accommodated in the chamber 50. Here, the heating unit 40 does not have a heating element inserted into the flavor generating article 110. As shown in the drawing, a bottom member 36 may be provided at the bottom of the chamber 50. The bottom member 36 can function as a stopper for positioning the flavor generating article 110 inserted into the chamber 50. The bottom member 36 has irregularities on the surface that the flavor generating article 110 abuts against, and can define a space capable of supplying air to the surface that the flavor generating article 110 abuts against. The bottom member 36 is made of, for example, resin, and in particular, can be formed of polycarbonate (PC), ABS (Acrylonitrile-Butadiene-Styrene) resin, PEEK (polyetheretherketone), or a polymer alloy containing multiple types of polymers, or a metal such as aluminum. Note that the bottom member 36 is preferably formed of a material with a low thermal conductivity in order to suppress the transfer of heat to the heat insulating unit 32 or the like.

[0098] The heat insulation part 32 is generally in a substantially cylindrical shape as a whole and is arranged to cover the chamber 50. The heat insulation part 32 may include, for example, an aerogel sheet. The insertion guide member 34 is provided between the outer housing 101 and the chamber 50. When the insertion guide member 34 is inserted into the housing from the opening of the outer housing 101, the claws are engaged with the housing, and it is configured to be unable to escape from the outside of the housing. The insertion guide member 34 is made of, for example, resin, and in particular, it can be formed of polycarbonate (PC), ABS (Acrylonitrile-Butadiene-Styrene) resin, PEEK (polyetheretherketone), or a polymer alloy containing multiple types of polymers. Note that the insertion guide member 34 may be formed of metal, glass, ceramic, or the like. Also, from the perspective of heat resistance, the insertion guide member 34 is preferably made of PEEK. When the slide cover 102 is in the open position, the insertion guide member 34 communicates with the outside of the fragrance attractor 100, and by inserting the fragrance generating article 110 into the through hole 34a of the insertion guide member 34, it guides the insertion of the fragrance generating article 110 into the chamber 50. When the slide cover 102 is in the open position, it is configured to cover at least a part of the insertion guide member 34 in the axial direction (Z-axis direction) of the chamber 50 while exposing the through hole 34a of the insertion guide member 34 to the outside. In FIG. 3, the state where the slide cover 102 is closed so as to cover the entire through hole 34a of the insertion guide member 34 is shown by a two-dot chain line.

[0099] The fragrance attractor 100 further has a first holding part 37 and a second holding part 38 that hold both ends of the chamber 50 and the heat insulation part 32. The first holding part 37 is arranged to hold the end portions of the chamber 50 and the heat insulation part 32 on the negative Z-axis side. The second holding part 38 is arranged to hold the end portions of the chamber 50 and the heat insulation part 32 on the slide cover 102 side (positive Z-axis side).

[0100] Next, the structure of the chamber 50 will be described. FIG. 4A is a perspective view of the chamber 50 according to the present embodiment. FIG. 4B is a cross-sectional view of the chamber 50 taken along the arrow 4B-4B shown in FIG. 4A. FIG. 5A is a cross-sectional view of the chamber 50 taken along the arrow 5A-5A shown in FIG. 4B. FIG. 5B is a cross-sectional view of the chamber 50 taken along the arrow 5B-5B shown in FIG. 4B. FIG. 6 is a perspective view of the chamber 50 and the heating unit 40 according to the present embodiment.

[0101] As shown in FIGS. 4A and 4B, the chamber 50 may have a cylindrical shape including an opening 52 into which the fragrance-generating article 110 is inserted and a cylindrical side wall portion 60 that houses the fragrance-generating article 110. A flange portion 52a is formed at an end portion that defines the opening 52 of the chamber 50. The chamber 50 is arranged such that the flange portion 52a provided on the side opposite to the bottom portion 56 faces the opening of the outer housing 101. The chamber 50 preferably has heat resistance and is formed of a material with a low coefficient of thermal expansion, and can be formed of, for example, stainless steel or the like. Note that the chamber 50 may be formed of a resin such as PEEK, glass, ceramic, or the like in addition to metal. Thereby, effective heating from the chamber 50 to the fragrance-generating article 110 becomes possible. Note that the chamber 50 is not limited to a cylindrical shape and may have a cup shape.

[0102] As shown in FIGS. 4B and 5B, the side wall portion 60 includes a contact portion 62 and a spaced portion 66. When the flavor generating article 110 is disposed at a desired position within the chamber 50, the contact portion 62 contacts or presses a part of the flavor generating article 110 along the axial direction (Z-axis direction) of the chamber 50, and the spaced portion 66 is spaced from the flavor generating article 110. That is, the chamber 50 compresses and grips the inserted flavor generating article 110. In the present specification, the "desired position within the chamber 50" refers to a position where the flavor generating article 110 is appropriately heated or the position of the flavor generating article 110 when the user smokes. The contact portion 62 has an inner surface 62a and an outer surface 62b. The spaced portion 66 has an inner surface 66a and an outer surface 66b. As shown in FIG. 6, the heating portion 40 is disposed on the outer surface 62b of the contact portion 62. The heating portion 40 is preferably disposed on the outer surface 62b of the contact portion 62 without a gap. Note that the heating portion 40 may include an adhesive layer. In that case, it is preferable that the heating portion 40 including the adhesive layer is disposed on the outer surface 62b of the contact portion 62 without a gap.

[0103] As shown in FIGS. 4A and 5B, the outer surface 62b of the contact portion 62 is planar. Since the outer surface 62b of the contact portion 62 is planar, when the strip-shaped electrode 48 is connected to the heating portion 40 disposed on the outer surface 62b of the contact portion 62 as shown in FIG. 6, the strip-shaped electrode 48 can be prevented from being bent. As shown in FIGS. 4B and 5B, the inner surface 62a of the contact portion 62 is planar. Also, as shown in FIGS. 4B and 5B, the thickness of the contact portion 62 is uniform.

[0104] As shown in FIGS. 4A, 4B, and 5B, the chamber 50 has two contact portions 62 in the circumferential direction of the chamber 50, and the two contact portions 62 face each other so as to be parallel to each other. It is preferable that at least a part of the distance between the inner surfaces 62a of the two contact portions 62 is smaller than the width of the portion disposed between the contact portions 62 of the flavor generating article 110 inserted into the chamber 50.

[0105] As shown in FIG. 5B, the inner surface 66a of the separation portion 66 may have an overall arcuate cross section in a cross section orthogonal to the axial direction (Z-axis direction) of the chamber 50. Further, the separation portion 66 is arranged to be adjacent to the contact portion 62 in the circumferential direction. That is, the contact portion 62 and the separation portion 66 constitute a non-circular inner peripheral surface in a cross section orthogonal to the axial direction (Z-axis direction) of the chamber 50.

[0106] As shown in FIG. 4B, the chamber 50 may have a hole 56a in its bottom portion 56 such that the bottom member 36 shown in FIG. 3 penetrates and is disposed inside the chamber 50. The bottom member 36 may be fixed inside the bottom portion 56 of the chamber 50 by an adhesive or the like. The adhesive interposed between the bottom member 36 and the bottom portion 56 may be made of a resin material such as an epoxy resin. Alternatively, an inorganic adhesive such as cement or welding may also be used. The bottom member 36 provided on the bottom portion 56 may support a part of the fragrance-generating article 110 inserted into the chamber 50 so as to expose at least a part of the end surface of the fragrance-generating article 110. Further, the bottom portion 56 may support a part of the fragrance-generating article 110 such that the exposed end surface of the fragrance-generating article 110 communicates with a gap 67 (see FIG. 7) described later.

[0107] As shown in FIGS. 4A, 4B, and 5A, the chamber 50 preferably has a cylindrical non-retaining portion 54 between the opening 52 and the side wall portion 60. A gap may be formed between the non-retaining portion 54 and the fragrance-generating article 110 in a state where the fragrance-generating article 110 is positioned at a desired position in the chamber 50. Further, as shown in FIGS. 4A and 4B, the chamber 50 preferably has a first guide portion 58 having a tapered surface 58a connecting the inner surface of the non-retaining portion 54 and the inner surface 62a of the contact portion 62.

[0108] As shown in FIG. 6, the heating unit 40 has a heating element 42. The heating element 42 may be, for example, a heating resistor. The heating element 42 is preferably arranged so as not to contact the separation part 66 of the chamber 50 and to heat the contact part 62. In other words, the heating element 42 is preferably arranged only on the outer surface of the contact part 62. The heating element 42 may have a difference in heating capacity between the part that heats the separation part 66 of the chamber 50 and the part that heats the contact part 62. Specifically, the heating element 42 may be configured to heat the contact part 62 to a higher temperature than the separation part 66. For example, the arrangement density of the heating resistors of the heating element 42 in the contact part 62 and the separation part 66 can be adjusted. Further, the heating element 42 may be wound around the outer periphery of the chamber 50 having substantially the same heating capacity over the entire circumference of the chamber 50. As shown in FIG. 6, the heating unit 40 preferably has, in addition to the heating element 42, an electrical insulating member 44 made of resin or the like that covers at least one surface of the heating element 42. In the present embodiment, the electrical insulating member 44 is arranged so as to cover both surfaces of the heating element 42.

[0109] FIG. 7 is a cross-sectional view shown in FIG. 5B in a state where the fragrance generating article 110 is arranged at a desired position in the chamber 50 according to the present embodiment. As shown in FIG. 7, when the fragrance generating article 110 is arranged at a desired position in the chamber 50, the fragrance generating article 110 can come into contact with and be pressed by the contact part 62 of the chamber 50. On the other hand, a gap 67 is formed between the fragrance generating article 110 and the separation part 66. The gap 67 can communicate with the opening 52 of the chamber 50 and the end face of the fragrance generating article 110 positioned in the chamber 50. Thereby, the air flowing in from the opening 52 of the chamber 50 can pass through the gap 67 and flow into the inside of the fragrance generating article 110. In other words, an air flow path (gap 67) is formed between the fragrance generating article 110 and the separation part 66.

[0110] Next, regarding the chamber 50 according to the present embodiment, the specific structure of the bosses corresponding to each example will be described. [Example 1: Vertically long boss] FIG. 8 is a cross-sectional view showing the chamber 50 according to Example 1 of the present embodiment. FIG. 9 is a cross-sectional view of the chamber 50 shown in FIG. 8. Here, FIG. 8 is a cross-section obtained by cutting the chamber 50 along the axis of the chamber 50, and shows a cross-section orthogonal to the cross-section shown in FIG. 4B. Further, FIG. 9 shows a cross-section corresponding to FIG. 5A.

[0111] As shown in FIGS. 8 and 9, on the inner peripheral surface of the chamber 50, bosses 51A are formed so as to press and grip the outer peripheral surface of the fragrance-generating article 110 accommodated in the chamber 50 inward in the radial direction of the chamber 50. The bosses 51A are provided on the inner surface 62a of the contact portion 62 on the inner peripheral surface of the chamber 50. Further, the bosses 51A are provided on each of the inner surfaces 62a facing each other. Further, the boss 51A is a protrusion that protrudes from the inner peripheral surface of the chamber 50 and presses the fragrance-generating article 110, and extends along the axial direction (Z-axis direction) of the chamber 50. The boss 51A may be formed by embossing, or may be formed by a convex member attached to the inner peripheral surface of the chamber 50. Further, the bosses 51A may be provided only on one of the inner surfaces 62a facing each other, or a plurality of bosses 51A may be provided on one inner surface 62a.

[0112] Thus, by providing the bosses 51A on the inner surface 62a of the contact portion 62, the fragrance-generating article 110 can be gripped by the bosses 51A in the chamber 50 while being compressed and held in the chamber 50. Therefore, even when stress acts on the fragrance-generating article 110, it is possible to prevent the fragrance-generating article 110 from coming out of the chamber 50. Further, by configuring the boss 51A with a protrusion extending along the axial direction (Z-axis direction) of the chamber 50, the fragrance-generating article 110 can be stably gripped in the chamber 50.

[0113] Note that when the fragrance-generating article 110 is inserted into the chamber 50, the boss 51A is provided at a position where it can contact at least two of the filling portion 111, the cylindrical member 114, and the filter portion 115 of the fragrance-generating article 110. For example, when the fragrance-generating article 110 is inserted into the chamber 50, the boss 51A first contacts the filling portion 111 and then contacts the cylindrical member 114 and the filter portion 115. Therefore, the fragrance-generating article 110 can be stably gripped at a position close to the insertion end of the chamber 50.

[0114] [Embodiment 2: Horizontally Long Boss] FIG. 10 is a cross-sectional view showing the chamber 50 according to Embodiment 2 of the present embodiment. FIG. 11 is a cross-sectional view of the chamber 50 shown in FIG. 10. Here, FIG. 10 is a cross-section obtained by cutting the chamber 50 along the axis of the chamber 50 and shows a cross-section orthogonal to the cross-section shown in FIG. 4B. Further, FIG. 11 shows a cross-section corresponding to FIG. 5A.

[0115] As shown in FIGS. 10 and 11, on the inner peripheral surface of the chamber 50, bosses 51B are formed so as to press and grip the outer peripheral surface of the fragrance-generating article 110 accommodated in the chamber 50 in the radially inward direction of the chamber 50. The bosses 51B are provided on the inner surface 62a of the contact portion 62 on the inner peripheral surface of the chamber 50. Further, the bosses 51B are provided on each of the inner surfaces 62a facing each other. Further, the boss 51B is a protrusion that protrudes from the inner peripheral surface of the chamber 50 and presses the fragrance-generating article 110, and extends along a direction orthogonal to the axial direction (Z-axis direction) of the chamber 50, specifically, the lateral direction (Y-axis direction). Similar to Embodiment 1, the boss 51B may be formed by embossing or may be formed by a convex member attached to the inner peripheral surface of the chamber 50. Further, the bosses 51B may be provided only on one of the inner surfaces 62a facing each other, or a plurality of bosses 51B may be provided on one inner surface 62a.

[0116] Thus, by providing the boss 51B on the inner surface 62a of the contact portion 62, the fragrance-generating article 110 can be held while being compressed in the chamber 50, and the fragrance-generating article 110 can be gripped by the boss 51B in the chamber 50. Therefore, even when stress acts on the fragrance-generating article 110, it is possible to prevent the fragrance-generating article 110 from coming out of the chamber 50. Further, by configuring the boss 51B with a protrusion extending along the lateral direction (Y-axis direction) of the chamber 50, the rotation of the fragrance-generating article 110 around the Y-axis is restricted, so that the sway of the fragrance-generating article 110 toward the separation portion 66 side can be suppressed.

[0117] Also, similar to the first embodiment, by providing the boss 51B at a position where it can come into contact with at least two portions of the fragrance-generating article 110, the fragrance-generating article 110 can be stably gripped at a position close to the insertion end of the chamber 50.

[0118] [Embodiment 3: Dot-shaped Boss] FIG. 12 is a cross-sectional view showing the chamber 50 according to Embodiment 3 of the present embodiment. FIG. 13 is a cross-sectional view of the chamber 50 shown in FIG. 12. Here, FIG. 12 is a cross-section obtained by cutting the chamber 50 along the axis of the chamber 50, and shows a cross-section orthogonal to the cross-section shown in FIG. 4B. Further, FIG. 13 shows a cross-section corresponding to FIG. 5A.

[0119] As shown in FIGS. 12 and 13, on the inner peripheral surface of the chamber 50, a boss 51C is formed which is configured to press and grip the outer peripheral surface of the fragrance generating article 110 accommodated in the chamber 50 inward in the radial direction of the chamber 50. The boss 51C is provided on the inner surface 62a of the contact portion 62 on the inner peripheral surface of the chamber 50. Further, the boss 51C is provided on each of the inner surfaces 62a facing each other. Further, the boss 51C is a dot-like protrusion that protrudes from the inner peripheral surface of the chamber 50 and presses the fragrance generating article 110. Similar to Example 1, the boss 51C may be formed by embossing or may be formed by a convex member attached to the inner peripheral surface of the chamber 50. Further, the boss 51C may be provided on only one of the inner surfaces 62a facing each other, or a plurality of bosses 51C may be provided on one inner surface 62a.

[0120] Thus, by providing the boss 51C on the inner surface 62a of the contact portion 62, the fragrance generating article 110 can be gripped by the boss 51C in the chamber 50 while compressing and holding the fragrance generating article 110 in the chamber 50. Therefore, even when stress acts on the fragrance generating article 110, it is possible to prevent the fragrance generating article 110 from coming out of the chamber 50. Further, by configuring the boss 51C as a dot-like protrusion, the fragrance generating article 110 can be pressed and gripped in the chamber 50 with a simple configuration.

[0121] Also, similar to Example 1, by providing the boss 51C at a position where it can come into contact with at least two portions of the fragrance generating article 110, the fragrance generating article 110 can be stably gripped at a position close to the insertion end of the chamber 50.

[0122] [Experimental Results] Various experiments were conducted using the fragrance attractor using the chamber 50 according to Examples 1 to 3 of the present embodiment described above and the fragrance attractor according to Comparative Examples 1 to 3. The experimental results will be described below.

[0123] [Preparation of Samples] First, a smoking system consisting of a combination of a flavor-generating article shown in Table 1 and a flavor attractor was prepared. Here, the test attractor 1 of Sample 1 has the chamber 50 (see FIGS. 8 and 9) according to Example 1 described above. The test attractor 2 of Sample 2 is the same flavor attractor as Sample 1, except that it has the chamber 50 (see FIGS. 10 and 11) according to Example 2 described above. The test attractor 3 of Sample 3 is the same flavor attractor as Sample 1, except that it has the chamber 50 (see FIGS. 12 and 13) according to Example 3 described above.

[0124] Also, the flavor attractors of Samples 4 to 6 are commercially available Ploom S2.0, Ploom, and glo hyper (glo is a registered trademark), respectively. The flavor-generating articles in Samples 1 to 5 were manufactured to be used exclusively with the test attractors 1 to 3, Ploom S2.0, and Ploom (sold in Russia and the UK). The flavor-generating article in Sample 6 is a commercially available product dedicated to glo hyper.

[0125] Here, the relationship between the flavor-generating articles and the test attractors 1 to 3 in Samples 1 to 3 corresponds to, for example, a combination product of a consumable and a device kit. This combination product includes a consumable containing the flavor-generating articles in Samples 1 to 3 and a device kit containing any one of the test attractors 1 to 3 in Samples 1 to 3, and at least one of the consumable and the device kit has an indication indicating that it is to be used with the other of the consumable and the device kit. That is, the consumable is a dedicated product for the device kit. The indication includes, for example, "for X", "for X", "designed for X" (X is a brand, product name, etc.). The consumable includes the package of the consumable, and the device kit includes, for example, a package and an instruction manual.

[0126]

Table 1

[0127] [Method for Measuring Resistance Value] For each sample, the resistance value (insertion resistance) when the flavor-generating article was inserted into the flavor aspirator was measured using an EZ-S500N manufactured by Shimadzu Corporation (hereinafter also referred to as the "device"). Specifically, first, the flavor aspirator was attached to the jig for the flavor aspirator attached to the device. Next, one end of the flavor-generating article (the end not on the mouthpiece side) was inserted into the flavor aspirator so that the flavor-generating article did not wobble. Subsequently, the pushing jig was brought into contact with the other end of the flavor-generating article (the end on the mouthpiece side). Next, zero-point correction of the resistance value of the device was performed.

[0128] Subsequently, it was confirmed that the flavor aspirator and the flavor-generating article were not tilted, and the pushing jig was lowered. The stroke speed of the pushing jig at this time was set to 60 mm / min. Also, as test conditions, the temperature was 25 °C and the humidity was 20%. In this device, the sampling length is set to 50 msec, and in this case, the length of one section of the acquired data is 0.05 mm. Next, when the pushing jig had descended a predetermined length and the operation of the pushing jig had stopped, the test was terminated. For each sample, the above measurement was performed twice.

[0129] [Acquisition of Resistance Value] The average value of the two measurement results obtained for each sample was taken as the resistance value. In this case, first, for each measurement result, the position when the tip of the flavor-generating article reached the end position of the chamber was determined, and based on the determined position, the two measurement results were aligned to obtain the average value. Then, each value was acquired for the range of 10 mm from the end position of the chamber. That is, the insertion force, average resistance force, local resistance force, local resistance position, and minimum resistance force described later were acquired in the range of 10 mm from the end position of the chamber.

[0130] Figures 14 to 19 are graphs showing the relationship between the distance (mm) from the end position of the chamber and the measured resistance value (N) for each of Samples 1 to 6. In Figures 14 to 19, the position of the pushing jig corresponding to the end position of the chamber is displayed as 0, the position before reaching the end position is displayed as a positive value, and the position after reaching the end position is displayed as a negative value. For example, the position of +10 mm in Figures 14 to 19 refers to the position 10 mm in front of the end position in the insertion direction of the flavor-generating article.

[0131] Here, the "position when reaching the end position of the chamber" (hereinafter also referred to as the end position) is the difference in resistance values between a certain section and the section immediately before it (that is, the difference in resistance values within 0.05 mm) among the resistance values measured by the above method. When there is a region where the difference is 0.1 N or more and the region continues for 0.5 mm, it is taken as the position in the section immediately before the region.

[0132] [Insertion force] The insertion force of each sample was obtained from the resistance value data acquired by the above method. Here, the insertion force refers to the resistance value when the tip of the flavor-generating article reaches the end position of the chamber.

[0133] [Average resistance force] The average resistance force of each sample was obtained from the resistance value data acquired by the above method. Here, the average resistance force in the first half and the average resistance force in the second half were evaluated. The average resistance force in the first half refers to the average of the resistance values in the range where the position from the end is 10 mm to 5 mm, and the average resistance force in the second half refers to the average of the resistance values in the range where the position from the end is 5 mm to 0 mm. Also, the ratio of the average resistance force in the second half to the average resistance force in the first half (second half / first half) is also referred to as the first resistance ratio.

[0134] [Local resistance and local resistance position] From the resistance value data obtained by the above method, the local resistance force and the local resistance position of each sample were obtained. Here, the local resistance force refers to a local variation region where the resistance value varies by a predetermined amount or more within a predetermined range. Specifically, in the case where a local increase and a local decrease exist in this order within a continuous range of 1.0 mm, it refers to the maximum resistance value in the region between the first local increase and the last local decrease. Note that a local increase means that the resistance value increases by 0.1 N or more in two consecutive intervals. Also, a local decrease means that the resistance value decreases by 0.05 N or more in two consecutive intervals. Further, the ratio of the local resistance force to the insertion force is referred to as the second resistance ratio. Also, the local resistance position refers to the position from the end position of the chamber when the local resistance force occurs, that is, the distance from the end position of the chamber to the position where the local resistance force occurs.

[0135] [Minimum resistance force] From the resistance value data obtained by the above method, the minimum resistance force of each sample was obtained. Here, the minimum resistance force refers to the minimum resistance value between the local resistance position and the end position of the chamber.

[0136] Table 2 shows the insertion force, average resistance force, local resistance force, local resistance position, and minimum resistance force obtained for each of Samples 1 to 6.

[0137] [Table 2]

[0138] [Sensory evaluation] For each of Samples 1 to 6, five panelists with trained discrimination ability were subjected to a sensory evaluation on whether it was easy to feel that the flavor-generating article reached the end of the chamber when inserted into the chamber, and whether it was easy to predict that it would reach the end of the chamber. Note that it is also said that it is easy to feel that it has reached the end of the chamber as obtaining a sense of reaching the end, and it is also said that it is easy to predict that it will reach the end of the chamber as obtaining a sense of predicting reaching the end.

[0139] [Sensory Evaluation of Sample 6] First, regarding the sense of reaching the end, five panelists used Sample 6 and evaluated, through panel discussion, the extent to which they could feel that the tip of the flavor-generating article reached the end of the chamber. The evaluation criteria are as follows. · It is difficult to feel the reaching of the end. · It is possible to feel the reaching of the end.

[0140] Next, regarding the sense of foreseeing reaching the end, five panelists used Sample 6 and evaluated, through panel discussion, the extent to which they could foresee that the tip of the flavor-generating article would reach the end of the chamber. The evaluation criteria are as follows. · It is difficult to foresee the reaching of the end. · It is possible to foresee the reaching of the end.

[0141] As a result of the evaluation through panel discussion, it was found that for Sample 6, while it is easy to feel that the tip of the flavor-generating article reached the end of the chamber, it is difficult to foresee that the tip of the flavor-generating article would reach the end of the chamber.

[0142] [Sensory Evaluation of Samples 1 - 5] Subsequently, regarding the sense of reaching the end, the same five panelists used Samples 1 - 5 and independently scored, on a five-point scale with Sample 6 as 3 points, the extent to which they could feel that the tip of the flavor-generating article reached the end of the chamber, and calculated the average value. The evaluation criteria are as follows. 5 points: It is easy to feel the reaching of the end. 4 points: It is somewhat easy to feel the reaching of the end. 3 points: No change. 2 points: It is somewhat difficult to feel the reaching of the end. 1 point: It is difficult to feel the reaching of the end.

[0143] Next, regarding the sense of foreseeing reaching the end, the same five panelists used Samples 1 - 5 and independently scored, on a five-point scale with Sample 6 as 3 points, the extent to which they could foresee that the tip of the flavor-generating article would reach the end of the chamber, and calculated the average value. The evaluation criteria are as follows. 5 points: It is easy to anticipate reaching the end. 4 points: It is somewhat easy to anticipate reaching the end. 3 points: It remains unchanged. 2 points: It is somewhat difficult to anticipate reaching the end. 1 point: It is difficult to anticipate reaching the end.

[0144] Table 3 shows the results of evaluating the end - reaching feeling and the end - reaching anticipation feeling for each of Samples 1 to 6.

[0145]

Table 3

[0146] [Examination of Results] As shown in Table 2, since the insertion forces of Samples 1 to 3 are 4.00 N or less, when the flavor - generating article is inserted into the chamber, it is possible to feel that the end of the chamber has been reached. Also, since the first resistance ratio of Samples 1 to 3 is greater than 1.0, the sense of increase in the insertion resistance on the side approaching the end of the chamber allows the approach of the end to be sensed, making it easier to anticipate reaching the end of the chamber. Moreover, since Samples 1 to 3 are provided with a local variation region, it becomes easier for the user to sense the approach of the end of the chamber, and it becomes even easier to anticipate reaching the end of the chamber.

[0147] Actually, as shown in Table 3, for Samples 1 to 3, the evaluations of the sense of reaching the end and the sense of predicting reaching the end both exceed 3 points. Therefore, it was confirmed that for Samples 1 to 3, both the sense of reaching the end and the sense of predicting reaching the end were obtained, that is, the sense of reaching the end and the sense of predicting reaching the end were compatible. This is considered to be because in Samples 1 to 3, the resistance at the time of inserting the flavor-generating article is small, so it is easy to obtain the sense of reaching the end. Also, in Sample 2, as shown in Fig. 15, after the resistance value increases in the local variation region, a decrease in the resistance value is felt, so it is considered that it is easier to obtain the sense of reaching the end. Further, in Samples 1 to 3, it is felt that by hooking once and pushing in again when inserting the flavor-generating article, the end of the chamber can be reached, so it is considered that it is easy to obtain the sense of predicting reaching the end.

[0148] Note that as the lower limit value of the insertion force, from the viewpoint of suppressing the dropout of the flavor-generating article, it is preferably 0.50 N or more, more preferably 0.70 N or more, and even more preferably 1.00 N or more. Also, as the upper limit value of the insertion force, from the viewpoint of ease of insertion, it is preferably 3.00 N or less, more preferably 2.00 N or less. Further, from the viewpoint of making it easier to obtain the sense of predicting reaching the end, the lower limit value of the first resistance ratio is preferably 1.0 or more, more preferably 1.05 or more. Also, the upper limit value of the first resistance ratio is preferably 2.0 or less, more preferably 1.8 or less.

[0149] Also, as shown in Table 2, for Samples 2 and 3, since the second resistance ratio, which is the ratio of the resistance value in the local variation region to the insertion force, is 0.8 or more, it is possible to suppress the situation where the resistance value in the local variation region becomes significantly smaller than the insertion force and thus cannot contribute to the prediction of reaching the end of the chamber.

[0150] Actually, as shown in Table 3, for Samples 2 and 3, the evaluations of the sense of reaching the end and the sense of foreseeing reaching the end both exceed 4 points. Therefore, it was confirmed that for Samples 2 and 3, both the sense of reaching the end and the sense of foreseeing reaching the end are obtained, and they are compatible with each other. In particular, it was confirmed that a high sense of foreseeing reaching the end is obtained. Referring to FIGS. 14 to 16, for Samples 2 and 3, after being caught once when inserting the flavor-generating article, the resistance value is smaller than that of Sample 1, so it is considered that the sense of foreseeing reaching the end is more easily obtained.

[0151] Note that as the upper limit value of the second resistance ratio, it is preferably 1.0 or less. If a resistance value larger than the insertion force exists in the local variation region, it may give the user a sense of discomfort, and the user may mistake the local variation region for the end position of the chamber. Also, if an excessive local resistance value exists, the flavor-generating article may buckle in the local variation region. Further, from the viewpoint of allowing the user to anticipate reaching the end by the local resistance, as the lower limit value of the second resistance ratio, it is preferably 0.8 or more, and more preferably 0.9 or more.

[0152] Also, as shown in Table 2, for Sample 3, the distance from the end position of the chamber to the local variation region is 5.0 mm or less. Therefore, until reaching the end of the chamber, the user can maintain the feeling of passing through the local variation region, so it becomes easier to anticipate reaching the end of the chamber.

[0153] Actually, as shown in Table 3, for Sample 3, the evaluations of the sense of reaching the end and the sense of foreseeing reaching the end are the largest among Samples 1 to 3. Therefore, it was confirmed that for Sample 3, both the sense of reaching the end and the sense of foreseeing reaching the end are obtained, and they are compatible with each other. In particular, it was confirmed that a very high sense of foreseeing reaching the end is obtained.

[0154] In addition, as the upper limit value of the distance from the end position of the chamber to the local variation region, it is preferably 6.5 mm or less, and more preferably 6.0 mm or less. Further, from the viewpoint of suppressing the situation where the user reaches the end of the chamber before obtaining the feeling of passing through the local variation region because the end position of the chamber and the local variation region are close to each other, as the lower limit value of the distance from the end position of the chamber to the local variation region, it is preferably 2.0 mm or more, more preferably 3.0 mm or more, and even more preferably 3.5 mm or more.

[0155] On the other hand, in Samples 4 and 5, since the insertion force was large, it was difficult to feel that the tip of the fragrance-generating article reached the end of the chamber, and it was difficult to predict that the tip of the fragrance-generating article would reach the end of the chamber. Further, as described above, in Sample 6, although it was felt that the tip of the fragrance-generating article reached the end of the chamber, it was difficult to predict that the tip of the fragrance-generating article would reach the end of the chamber.

[0156] Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications are possible within the scope of the technical idea described in the claims, the specification, and the drawings. Note that any shape and material not directly described in the specification and the drawings are within the scope of the technical idea of the present invention as long as the functions and effects of the present invention are achieved.

[0157] For example, the fragrance inhaler 100 of the present embodiment has a so-called counterflow type air flow path in which the air flowing in from the opening 52 of the chamber 50 is supplied to the end face of the fragrance generating article 110. However, the present invention is not limited to this, and it may have a so-called bottom flow type air flow path in which air is supplied into the chamber 50 from the bottom 56 of the chamber 50. Further, the heating element 42 is not limited to a resistance heating type, and may be an induction heating type. In that case, the heating element 42 can heat the chamber 50 by induction heating. Further, the fragrance generating article 110 may have a susceptor which is a heating element. In this case, the fragrance inhaler 100 does not have a heating element inserted into the fragrance generating article, and the susceptor which is a heating element exists inside the fragrance generating article 110. Although the structure in which the heating element 42 is arranged around the chamber 50 to raise the temperature of the fragrance generating article 110 in the chamber 50 has been described, the method of raising the temperature of the fragrance generating article 110 in the chamber 50 may be to directly apply the heating element 42 to the fragrance generating article 110 or to generate frictional heat by the vibration between the substances in the fragrance generating article 110.

Explanation of reference numerals

[0158] 40... Heating part 50... Chamber 51A to 51C... Boss 62... Contact part 66... Separation part 100... Fragrance inhaler 110... Fragrance generating article 111... Filling part 114... Cylindrical member 115... Filter part

Claims

1. A smoking system comprising an aroma attractor and an aroma generating article, wherein the aroma attractor includes a housing portion having an opening formed at one end and configured to accommodate at least a part of the aroma generating article through the opening; when the aroma generating article is inserted into the housing portion, the resistance value when the tip of the aroma generating article reaches the end of the housing portion is defined as the insertion force A; when the aroma generating article is inserted into the housing portion, the ratio of the average resistance value from the midpoint between the predetermined position and the end of the housing portion to the end of the housing portion to the average resistance value of the front half portion, which is the average of the resistance values from a predetermined position on the insertion end side of the housing portion to the midpoint between the predetermined position and the end of the housing portion, is defined as the first resistance ratio B, satisfying the following formula (1) and formula (2): A ≤ 4.00 N... (1) B > 1.0... (2) A smoking system.

2. The smoking system according to claim 1, wherein when the aroma generating article is inserted into the housing portion, at least one local variation region is provided where the resistance value varies by a predetermined amount or more within a predetermined range. A smoking system.

3. The smoking system according to claim 2, wherein when the ratio of the resistance value in the local variation region to the insertion force is defined as the second resistance ratio C, satisfying the following formula (3): C ≥ 0.8... (3) A smoking system.

4. The smoking system according to claim 2 or claim 3, wherein when the distance from the end position of the housing portion to the local variation region is defined as the distance D, satisfying the following formula (4): D ≤ 5.0 mm... (4) A smoking system.

5. The smoking system according to any one of claims 1 to 4, wherein the smoking system further includes a heating portion configured to heat the aroma generating article accommodated in the housing portion, and the heating portion is provided in the aroma attractor and does not have a heating element inserted into the aroma generating article. A smoking system.

6. The smoking system according to any one of claims 1 to 5, wherein the aroma generating article includes a filling portion filled with a smokable material, a hollow cylindrical portion provided continuously with the filling portion, and a filter portion provided continuously with the cylindrical portion, the housing portion includes a gripping portion configured to grip the aroma generating article accommodated in the housing portion, and the gripping portion is provided at a position capable of contacting at least two portions of the aroma generating article when the aroma generating article is inserted into the housing portion. A smoking system.

7. A smoking system according to any one of claims 1 to 6, wherein the accommodating part comprises a contact part that presses a part of the accommodated flavor generating article along the axial direction of the accommodating part, and a separation part that separates from the accommodated flavor generating article. Smoking system.

8. A device kit, comprising a flavor attractor according to any one of claims 1 to 7, and a display indicating that it is used for a flavor generating article according to any one of claims 1 to 7. Device kit.

9. A consumable, comprising a flavor generating article according to any one of claims 1 to 7, and a display indicating that it is used for a flavor attractor according to any one of claims 1 to 7. Consumable.

10. A combination product of a consumable and a device kit, comprising a consumable containing a flavor generating article according to any one of claims 1 to 7, and a device kit containing a flavor attractor according to any one of claims 1 to 7, wherein at least one of the consumable and the device kit has a display indicating that it is used for the other of the consumable and the device kit. Combination product.

11. In a smoking system comprising a flavor attractor and a flavor generating article, a method for obtaining a sense of reaching the end and a sense of foreseeing reaching the end, wherein the flavor attractor includes a housing portion having an opening formed at one end and accommodating at least a part of the flavor generating article through the opening, the flavor generating article is inserted into the housing portion, and the resistance value when the tip of the flavor generating article reaches the end of the housing portion is defined as the insertion force A, when the ratio of the average resistance value of the latter half from the midpoint between the predetermined position and the end of the housing portion to the average resistance value of the front half from a predetermined position on the insertion end side of the housing portion to the midpoint between the predetermined position and the end of the housing portion when the flavor generating article is inserted into the housing portion is defined as the first resistance ratio B, the following formulas (1) and (2) are satisfied A ≦ 4.00 N…(1) B > 1.0…(2) Method.

Images