Non-combustion heating type tobacco and electric heating type tobacco product

Abstract

To provide a non-combustion heating type tobacco and the like that are improved in delivery amount of a component that is generated by heating.SOLUTION: A rod-like non-combustion heating type tobacco includes a tobacco rod part and a mouthpiece part. The mouthpiece part includes a filter segment including a filter medium. The filter medium is constituted of a fiber that has a Y-shaped circumferential cross section and a single fiber denier of 8 or more and 12 or less.SELECTED DRAWING: Figure 6

Description

Technical Field

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

Background Art

[0002] In recent years, as an alternative to cigarettes (rolled tobacco), electrically heated tobacco products composed of non-combustion heated tobacco used by inserting it into an electrically heated device have been developed (Patent Document 1). The non-combustion heated tobacco generally includes a tobacco rod in which tobacco shreds, materials for generating flavor components, etc. are wrapped with rolling paper, a mouthpiece for sucking components generated from the tobacco rod by heating, and chip paper for wrapping these. Generally, in an electrically heated tobacco product, after inserting the non-combustion heated tobacco into the electrically heated device, by generating heat in the heater member, the tobacco rod is heated starting from the location in contact with the heater member, and the generated components are delivered to the user.

[0003] The delivery of components generated by heating is considered an important characteristic not only in electrically heated tobacco products but also in cigarettes, and has been widely studied. Patent Document 2 discloses a cigarette in which by adding a volatile-containing agent included in a gel of a polysaccharide to a tobacco rod, the delivery amount of the volatile fragrance contained in the smoke at the first puff is increased, seepage of the volatile fragrance does not occur during storage, and the desired delivery amount of the volatile fragrance can be maintained during smoking after storage. Patent Document 3 discloses a cigarette in which by adding an adsorbent or a liquid absorbent to a filter disposed downstream of the tobacco rod, undesirable components generated by combustion can be reduced and a good flavor can be delivered.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] In Patent Documents 1 and 2 mentioned above, there is disclosed a technique for adjusting the amount of volatile components and achieving a desired component delivery by adding a specific material to a tobacco rod or a filter. Compared with the technique for improving the delivery of components generated by heating from the viewpoint of the materials contained in such tobacco, there has been little study on the technique for improving the delivery of such components from the viewpoint of the structure of the material constituting the filter, and there is room for improvement. In addition, since an electrically heated tobacco product has a lower heating temperature during use and a smaller amount of generated components compared with a cigarette involving combustion, improvement in the amount of component delivery is particularly desired. Therefore, an object of the present invention is to provide a non-combustion heated tobacco and an electrically heated tobacco product with improved delivery amount of components generated by heating. [Means for Solving the Problems]

[0006] As a result of intensive studies, the present inventors have found that the above problems can be solved by making the fibers constituting the filter medium of the filter have a specific shape and size, and have reached the present invention.

[0007] That is, the gist of the present invention is as follows. [1] A rod-shaped non-combustion heated tobacco comprising a tobacco rod part and a mouthpiece part, wherein the mouthpiece part includes a filter segment having a filter medium, The non-combustion heated tobacco product, wherein the filter medium has a Y-shaped cross-section in the circumferential direction and is composed of fibers having a single fiber denier of 8 or more and 12 or less. [2] The non-combustion heated tobacco product according to [1], wherein the density of the filter medium is 0.09 g / cm 3 or more and 0.14 g / cm 3 or less. [3] The non-combustion heated tobacco product according to [1] or [2], wherein the compression change rate P of the filter medium represented by the following formula (1) is 88% or more and 95% or less. P = (D1 × 100) / D2 (1) P (%): Compression change rate D1 (mm): The diameter of the filter medium in the compression direction after compressing the filter medium under the conditions of a compression load of 3 N / mm per unit length in the major axis direction and a compression time of 10 seconds so that the filter medium deforms in a direction perpendicular to the ventilation direction. D2 (mm): The average diameter of the filter medium before compression. [4] The non-combustion heated tobacco product according to any one of [1] to [3], wherein the length of the filter medium in the major axis direction is 5 mm or more and 20 mm or less. [5] The non-combustion heated tobacco product according to any one of [1] to [4], wherein the ventilation resistance of the filter segment in the major axis direction is 1.0 mmH2O / mm or more and 4.0 mmH2O / mm or less. [6] The non-combustion heated tobacco product according to any one of [1] to [5], wherein a flavor capsule is disposed inside the filter medium. [7] An electrically heated tobacco product comprising an electrically heated device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member, and the non-combustion heated tobacco product according to any one of [1] to [6] inserted so as to be in contact with the heater member.

Advantages of the Invention

[0008] According to the present invention, it is possible to provide a non-combustion heated tobacco product and an electrically heated tobacco product in which the delivery amount of components generated by heating is improved.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

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Figure 6

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Figure 8

Figure 9

Modes for Carrying Out the Invention

[0010] Hereinafter, embodiments of the present invention will be described in detail. However, these descriptions are examples (representative examples) of the embodiments of the present invention, and the present invention is not limited to these contents unless it exceeds the gist thereof. Also, in this specification, when expressing with "~" sandwiching numerical values or physical property values before and after it, it shall be used as including the values before and after. Also, in this specification, "a plurality" represents two or more unless otherwise specified.

[0011] <Non-combustion heated tobacco> A non-combustion heated tobacco product (also simply referred to as "non-combustion heated tobacco"), which is an embodiment of the present invention, is a rod-shaped non-combustion heated tobacco product comprising a tobacco rod part and a mouthpiece part, wherein the mouthpiece part includes a filter segment having a filter filter material, wherein the filter filter material is composed of fibers having a Y-shaped cross-section in the circumferential direction and a single fiber denier of 8 or more and 12 or less, and is a non-combustion heated tobacco product. An example of the non-combustion heated tobacco product according to the embodiment is shown in FIG. 1. Hereinafter, the non-combustion heated tobacco product will be described with reference to FIG. 1.

[0012] The rod-shaped non-combustion heated tobacco product 10 shown in FIG. 1 is a rod-shaped non-combustion heated tobacco product comprising a tobacco rod part 11, a mouthpiece part 14, and a tip paper 15 formed by winding these. The mouthpiece part 14 includes a cooling segment 12 and a filter segment 13 containing a filter filter material. With respect to the axial direction (also referred to as the "long axis direction") of the non-combustion heated tobacco product 10, the cooling segment 12 is sandwiched adjacent to the tobacco rod part 11 and the filter segment 13, and an aperture V is provided concentrically in the circumferential direction of the cooling segment 12. The aperture V is usually a hole for promoting the inflow of external air by the user's suction, and the inflow of this air can lower the temperature of the components and air flowing from the tobacco rod part 11. In the non-combustion heated tobacco product 10, the components generated by heating the tobacco rod part 11 and the like pass through the mouthpiece part and are carried into the user's mouth. Examples of the components generated by heating include flavor components derived from flavors, nicotine and tar derived from tobacco leaves, and aerosol components derived from an aerosol base material. In this specification, the aerosol base material is a base material for generating an aerosol.

[0013] The non-combustion heated tobacco product 10 preferably has a columnar shape satisfying a shape in which the aspect ratio defined as follows is 1 or more. Aspect ratio = h / w w is the width of the bottom surface of the columnar body (in this specification, it is the width of the bottom surface on the tobacco rod portion side), h is the height, and it is preferable that h ≥ w. In this specification, the major 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 major axis direction for convenience. The shape of the bottom surface is not limited and may be polygonal, rounded polygonal, circular, elliptical, etc. When the bottom surface is circular, the width w is the diameter; when it is elliptical, the width w is the major axis; when it is polygonal or rounded polygonal, the width w is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. The length h in the major axis direction of the non-combustion heated tobacco 10 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, it is usually 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less. The width w of the bottom surface of the columnar body of the non-combustion heated tobacco 10 is not particularly limited. For example, it is usually 5 mm or more, preferably 5.5 mm or more. Also, it is usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less. Regarding the length in the major axis direction of the non-combustion heated tobacco, the cooling segment and the Ratio of the lengths of the filter segments (cooling segment: filter segment) is not particularly limited. However, from the perspective of the amount of flavor delivery, it is usually 0.60:1.40 to 1.40:0.60, 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 still more preferably 0.95 to 1.05:0.95 to 1.05. By setting the ratio of the lengths of the cooling segment and the filter segment within the above range, it is possible to achieve the effects of suppressing the cooling effect, the loss caused by the generated vapor and aerosol adhering to the inner wall of the cooling segment, and achieving a balance in the air volume and flavor adjustment function of the filter, resulting in a good flavor. In particular, when the cooling segment is lengthened, atomization of the aerosol etc. is promoted and a good flavor can be achieved. However, if it is too long, adhesion of the passing substances to the inner wall will occur.

[0014] The ventilation resistance in the longitudinal axis direction per stick of the non-combustion heated cigarette 10 is not particularly limited, but from the viewpoint of ease of inhalation, it is usually 8 mmH2O or more, preferably 10 mmH2O or more, more preferably 12 mmH2O or more, and usually 100 mmH2O or less, preferably 80 mmH2O or less, more preferably 60 mmH2O or less. The ventilation resistance is measured in accordance with the ISO standard method (ISO6565:2015), for example, using a filter ventilation resistance measuring instrument manufactured by Cellurian. The ventilation resistance refers to the pressure difference between the first end face and the second end face when air with a predetermined air flow rate (17.5 cc / min) is passed from one end face (the first end face) to the other end face (the second end face) in a state where air permeation on the side surface of the non-combustion heated cigarette 10 does not occur. The unit is generally expressed in mmH2O. The relationship between the ventilation resistance and the length of the non-combustion heated cigarette is known to be a proportional relationship within the generally implemented length range (length 5 mm to 200 mm). If the length doubles, the ventilation resistance of the non-combustion heated cigarette doubles.

[0015] [Mouthpiece part] The mouthpiece part 14 includes a filter segment 13 having a filter filter medium. The filter filter medium is not particularly limited as long as the circumferential cross-section is Y-shaped and the single fiber denier is 8 or more and 12 or less. For example, as shown in FIG. 1, it includes a cooling segment 12 and a filter segment 13 including the above filter filter medium. With respect to the axial direction of the non-combustion heated cigarette 10, the cooling segment 12 can be configured to be sandwiched adjacent to the tobacco rod part 11 and the filter segment 13. Hereinafter, the filter segment 13 and the cooling segment 12 will be described in detail.

[0016] (Filter segment) The filter segment 13 includes a filter medium, and the filter medium is composed of fibers having a Y-shaped cross section in the circumferential direction and a single fiber denier of 8 or more and 12 or less, and is not particularly limited as long as it has the function of a general filter. Examples of the general functions of a filter include, for example, adjusting the amount of air mixed when sucking an aerosol or the like, reducing the flavor, reducing nicotine and tar, etc., but it is not necessary to have all of these functions. Further, in an electrically heated tobacco product in which the components generated are less and the filling rate of the tobacco filler tends to be lower compared to a cigarette product, preventing the tobacco filler from falling while suppressing the filtering function is also one of the important functions.

[0017] The shape of the filter segment 13 is not particularly limited, and a known shape can be adopted. Usually, it can be in a cylindrical shape and can be in the following modes.

[0018] The circumferential cross-sectional shape of the filter segment 13 is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product. Usually, it is 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 circumferential cross section is not circular, the above diameter is applied when assuming a circle having 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 13 can be appropriately changed according to the size of the product. Usually, it is 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 length of the filter segment 13 in the major axis direction can be appropriately changed according to the size of the product. Usually, it is 15 mm or more and 35 mm or less, preferably 17.5 mm or more and 32.5 mm or less, and more preferably 20.0 mm or more and 30.0 mm or less. The shape and dimensions of the filter medium can be appropriately adjusted so that the shape and dimensions of the filter segment 13 fall within the above ranges. However, the length of the filter medium in the major axis direction can be appropriately changed according to the size of the product. From the viewpoint of obtaining a desired hardness, it is usually 3 mm or more and 30 mm or less, preferably 5 mm or more and 20 mm or less, more preferably 8 mm or more and 18 mm or less, and even more preferably 10 mm or more and 15 mm or less.

[0019] The ventilation resistance of the filter segment 13 in the major axis direction is not particularly limited. However, from the viewpoint of ease of inhalation, it is usually 1.0 mmH2O / mm or more and 4.0 mmH2O / mm or less. In particular, when the filter medium has a fragrance capsule described later, from the viewpoint of ease of inhalation, it is preferably 1.5 mmH2O / mm or more and 4.0 mmH2O / mm or less. In this case, furthermore, when the filter medium further contains a flavoring agent described later, particularly when it contains a crystalline substance such as menthol as the flavoring agent, it is more preferably 2.5 mmH2O / mm or more and 3.6 mmH2O / mm or less. On the other hand, when it does not contain a flavoring agent, it is more preferably 1.9 mmH2O / mm or more and 3.0 mmH2O / mm or less. When the filter medium does not have a fragrance capsule described later, from the viewpoint of ease of inhalation, regardless of whether it contains a fragrance agent or not, it is preferably 1.3 mmH2O / mm or more and 2.4 mmH2O / mm or less. These ventilation resistance conditions can also be applied as the ventilation resistance conditions in the ventilation direction of the filter medium. The above-mentioned ventilation resistance is measured in accordance with the ISO standard method (ISO6565), for example, using a filter ventilation resistance measuring instrument manufactured by Zellian. The ventilation resistance of the filter segment 13 refers to the pressure difference between the first end face and the second end face when air with a predetermined air flow rate (17.5 cc / min) is passed from one end face (the first end face) to the other end face (the second end face) in a state where air permeation does not occur on the side surface of the filter segment 13. The unit is generally expressed in mmH2O. The relationship between the ventilation resistance of the filter segment 13 and the length of the filter segment 13 is known to be a proportional relationship within the normally implemented length range (length 5 mm to 200 mm). If the length doubles, the ventilation resistance of the filter segment 13 doubles.

[0020] Also, the form of the filter segment 13 can be 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, etc.

[0021] The filter segment 13 can be manufactured by a known method. For example, when using synthetic fibers such as cellulose acetate tow as the material of the filter medium, 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. WO2013 / 067511 can be used. In the manufacture of the filter segment 13, the adjustment of the ventilation resistance and the addition of additives (known adsorbents, fragrances (such as menthol), granular activated carbon, fragrance holding materials, etc.) to the filter medium can be appropriately designed.

[0022] The filter medium constituting the filter segment 13 is not particularly limited as long as the circumferential cross-section is Y-shaped and the single fiber denier is 8 or more and 12 or less. For example, a tow such as cellulose acetate tow composed of fibers having a Y-shaped circumferential cross-section processed into a cylindrical shape can be used. The shape of the circumferential cross-section of the fibers constituting the tow is Y-shaped. When using a tow having a Y-shaped fiber shape, compared with the case of using a tow having a general fiber shape such as a circular shape, since the fiber shape is complex, it is easy to obtain a filter segment with excellent delivery amount. In particular, it is possible to manufacture a filter segment having a high component delivery amount and a desired hardness while suppressing the cost with a small usage amount. The denier per filament (g / 9000m) of the fiber is not particularly limited as long as it is 8 or more and 12 or less, and may be 9 or more and 11 or less from the viewpoint of improving the delivery amount of the components generated by heating. If the denier per filament of the fiber is less than the above range, the structure of the fibers constituting the filter medium becomes too dense, resulting in a decrease in the delivery amount of the components. If it exceeds the above range, the structure of the fibers constituting the filter medium becomes too sparse, and sufficient hardness cannot be obtained. The total denier (g / 9000m) of the fiber is not particularly limited, but from the viewpoint of improving the delivery amount of the components generated by heating, the total denier may be 12,000 or more and 35,000 or less, and preferably 15,000 or more and 30,000 or less. These denier per filament and total denier are particularly preferable when the circumference of the mouthpiece part is 22 mm. In the case of a filter filled with fibers, triacetin may be added in an amount of 5% by weight or more and 10% by weight or less based on the total fiber weight in order to improve the filter hardness. The method for manufacturing fibers with a circumferential cross-section in a Y shape is not particularly limited. For example, when using acetate fibers, acetate flakes (cellulose acetate) are produced through the acetylation of pulp raw materials, and then the acetate flakes are dissolved in acetone by a dissolver (dope), and fibrous bundles can be produced by spinning. In this spinning process, the circumferential cross-section can be made into a Y shape by changing the shape of the nozzle die, and the thickness of the fiber (filament denier) can be changed by changing the nozzle hole diameter. Then, the total denier is determined according to the required air permeability resistance, whereby the number of converging filaments (total denier ÷ filament denier) is determined, and spinning is carried out using the required number of spinning chambers. The spun and converged acetate fibers are given a uniform wave shape (crimp) by a crimper and can be packed by layering while the ribbon-shaped tow flowing is shaken into a packing machine and packed while shaking.

[0023] The density of the filter filter medium (particularly, when including the fragrance capsules described later, the density in the state excluding the fragrance capsules) is not particularly limited, but from the viewpoint of obtaining a desired hardness, it is usually 0.09 g / cm 3 or more and 0.25 g / cm 3 or less, preferably 0.09 g / cm 3 or more and 0.20 g / cm 3 or less, more preferably 0.09 g / cm 3 or more and 0.14 g / cm 3 or less, and even more preferably 0.11 g / cm 3 or more and 0.14 g / cm 3 or less.

[0024] The compression change rate P of the filter medium represented by the following formula (1) is one of the indexes representing hardness. Although there is no particular limitation, from the viewpoint of obtaining a desired hardness, it is usually 85% or more and 98% or less, preferably 88% or more and 95% or less, and more preferably 90% or more and 93% or less. The measurement method of this compression change rate P is not particularly limited. For example, it can be measured using a SODIM-H Hardness module manufactured by Sodim SAS, etc., and the numerical value can be adjusted by changing the density and material of the filter medium. P=(D1×100) / D2 (1) P(%): Compression change rate D1(mm): The diameter of the filter medium in the compression direction after compressing the filter medium under the conditions of a compression load of 3 N / mm per unit length in the major axis direction and a compression time of 10 seconds so that the filter medium deforms in the direction perpendicular to the ventilation direction (circumferential direction in the case of a cylindrical shape). D2(mm): The average diameter of the filter medium before compression Also, since the compression change rate is one of the indexes representing the hardness of the filter medium, in this specification, the compression change rate is also referred to as "hardness".

[0025] In addition, the filter medium may contain components such as fragrance materials separately from the fragrance capsules described later. For example, as fragrance agents, menthol, spearmint, peppermint, fenugreek, clove, or medium-chain fatty acid triglyceride (MCT), etc. can be mentioned, and menthol is preferred. These components may be used alone or in combination of two or more in any kind and ratio. The content of the fragrance agent (especially menthol) in the filter medium (excluding the fragrance agent in the fragrance capsule described later) is not particularly limited, and is usually 0.5% by weight or more and 15% by weight or less, preferably 3% by weight or more and 10% by weight or less, and more preferably 10% by weight or more and 5% by weight or less.

[0026] The filter medium may have disposed therein a crushable additive release container (e.g., a flavor capsule) including a crushable outer shell such as gelatin. The form of the flavor capsule (also called an "additive release container" in the art) is not particularly limited, and known forms may be adopted. For example, it can be a crushable additive release container including a crushable outer shell such as gelatin. In this case, when the flavor capsule is broken by the user of the tobacco product before, during, or after use, it releases the liquid or substance (usually a flavoring agent) contained in the flavor capsule. Next, the liquid or substance is transmitted to the tobacco smoke during the use of the tobacco product and to the surrounding environment after use. The form of the flavor capsule is not particularly limited. For example, it may be a frangible flavor capsule, and its shape is preferably spherical. The additive contained in the flavor capsule may include any of the above-described additives, but particularly preferably includes a flavoring agent and activated carbon. Further, as the additive, one or more materials that assist in filtering the smoke may be added. The form of the additive is not particularly limited, but is usually liquid or solid. Note that the use of capsules containing additives is well known in the art. Frangible flavor capsules and methods for manufacturing the same are well known in the art. Examples of the flavoring agent may include menthol, spearmint, peppermint, fenugreek, clove, or medium-chain fatty acid triglyceride (MCT), etc. The flavoring agent can be menthol, or menthol or the like, or a combination thereof. When using a flavor capsule, if the denier of the single fiber of the fiber constituting the above-described filter medium exceeds the upper limit of the above range, the spread of the penetration of the components released from the flavor capsule into the filter tends to be insufficient. If it is below the lower limit, the spread of the penetration into the filter is promoted too much, and the component delivery amount is likely to be excessively suppressed.

[0027] The filter segment 13 may include a winding paper (filter plug winding paper) for winding the above-mentioned filter filter medium or the like from the viewpoint of improving strength and structural rigidity. 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. 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 it is usually 20 μm or more and 140 μm or less, preferably 30 μ m 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 it 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.

[0028] The filter segment 13 may further include a center hole segment having one or more hollow portions. The center hole segment is usually arranged on the cooling segment side rather than the filter filter medium side, and is preferably arranged adjacent to the cooling segment.

[0029] The center hole segment is composed of a filling layer having one or more hollow parts and an inner plug wrapper (inner winding paper) covering the filling layer. For example, the center hole segment is composed of a filling layer having a hollow part and an inner plug wrapper covering the filling layer. The center hole segment has a function of enhancing the strength of the mouthpiece part. The filling layer can be, for example, a rod with an inner diameter of φ1.0 mm or more and φ5.0 mm or less, which is filled with cellulose acetate fibers at a high density 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 then cured. Since the filling density of the fibers in the filling layer is high, when sucking, air and aerosol will only flow through the hollow part, and hardly flow inside the filling layer. Since the filling layer inside the center hole segment is a fiber filling layer, the feel from the outside during use is less likely to cause discomfort to the user. Note that the center hole segment may not have an inner plug wrapper and its shape may be maintained by thermoforming.

[0030] The center hole segment and the filter medium 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 tobacco rod part 11, the cooling segment 12, and the connected center hole segment and filter medium may be connected, for example, by a mouthpiece lining paper. These connections can be made, for example, by applying an adhesive such as vinyl acetate-based adhesive on the inner surface of the mouthpiece lining paper, and then inserting and winding the tobacco rod part 11, the cooling segment 12, and the connected center hole segment and filter medium. Note that these may be connected in multiple times using a plurality of lining papers.

[0031] (Cooling segment) The cooling segment 12 is sandwiched adjacent to the tobacco rod part and the filter segment, and is usually a rod-shaped member provided with a cavity having a hollow (void) cross-section in the circumferential direction such as a cylinder. The cooling segment 12 may be provided with apertures V (also referred to as "ventilation filters (Vf)" in the art) in its circumferential direction and concentrically. When an aerosol substrate is used for the tobacco rod portion, it is possible to promote the generation of aerosol by causing the vapor containing the aerosol substrate and the tobacco flavor component generated by heating the tobacco rod to come into contact with the outside air and liquefy due to the temperature drop. When the concentrically arranged apertures V are treated as one aperture group, the aperture group may be one or two or more. When two or more aperture groups are present, from the viewpoint of improving the delivery amount of the components generated by heating, it is preferable not to provide an aperture group in the region less than 4 mm in the direction of the cooling segment from the boundary between the cooling segment and the filter segment. is preferred. When the non-combustion heated tobacco 10 is in a mode in which the tobacco rod portion 11, the cooling segment 12, and the filter segment 13 are wound with the tip paper 15, it is preferable that the tip paper 15 is provided with an aperture at a position directly above the aperture V provided in the cooling segment 12. When manufacturing such a non-combustion heated tobacco 10, a tip paper 15 provided with an aperture overlapping the aperture V may be prepared and wound, but from the viewpoint of ease of manufacture, after manufacturing the non-combustion heated tobacco 10 using the cooling segment 12 having no aperture V, it is preferable to make a hole that penetrates both the cooling segment 12 and the tip paper 15 simultaneously.

[0032] The region where the aperture V exists is preferably a region of 4 mm or more in the direction of the cooling segment from the boundary between the cooling segment 12 and the filter segment 13, more preferably a region of 4.5 mm or more, still more preferably a region of 5 mm or more, particularly preferably a region of 5.5 mm or more, from the viewpoint of improving the delivery amount of the components generated by heating, and preferably a region of 15 mm or less, more preferably a region of 10 mm or less, still more preferably a region of 7 mm or less, from the viewpoint of ensuring the cooling function. The region where the aperture V exists is preferably a region of 22 mm or more in the direction from the suction end of the non-combustion heated tobacco towards the cooling segment side, preferably a region of 23.5 mm or more, preferably a region of 24 mm or more, more preferably a region of 25 mm or more, from the viewpoint of improving the delivery amount of the components generated by heating. Also, from the viewpoint of ensuring the cooling function, it is preferably a region of 38 mm or less, more preferably a region of 36.5 mm or less, and even more preferably a region of 33 mm or less. Also, considering the boundary between the cooling segment 12 and the tobacco rod portion 11, when the axial length of the cooling segment 12 is 20 mm or more, the region where the aperture V exists is preferably a region of 2 mm or more in the direction of the cooling segment from the boundary between the cooling segment 12 and the tobacco rod portion 11, more preferably a region of 3.5 mm or more, even more preferably a region of 7 mm or more, from the viewpoint of ensuring the cooling function. Also, from the viewpoint of improving the delivery amount of the components generated by heating, it is preferably 18 mm or less, more preferably a region of 16.5 mm or less, even more preferably a region of 15 mm or less, and particularly preferably a region of 14.5 mm or less.

[0033] The diameter of the aperture V is not particularly limited, but is preferably 100 μm or more and 1000 μm or less, and more preferably 300 μm or more and 800 μm or less. The aperture is preferably substantially circular or substantially elliptical, and in the case of a substantially elliptical shape, the diameter represents the major axis.

[0034] The length of the cooling segment in the major axis direction can be appropriately changed according to the size of the product, but is usually 15 mm or more, preferably 20 mm or more. Also, it is usually 40 mm or less, preferably 35 mm or less, and more preferably 30 mm or less. By setting the length of the cooling segment in the major axis direction to be equal to or greater than the above lower limit, a sufficient cooling effect can be ensured to obtain a good flavor. By setting it to be equal to or less than the above upper limit, the loss can be suppressed by the adhesion of the generated vapor and aerosol to the inner wall of the cooling segment. When filling the cooling segment 12 with a cooling sheet or the like for cooling, the total surface area of the cooling segment 12 is not particularly limited, and for example, it can be 150 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 cooling segment 12. The total surface area of the cooling segment 12 is preferably 200 mm 2 / mm or more, more preferably 250 mm 2 / mm or more. On the other hand, it is preferably 600 mm 2 / mm or less, and more preferably 400 mm 2 / mm or less.

[0035] The cooling segment 12 desirably has a large total surface area with its internal structure. Therefore, in a preferred embodiment, the cooling segment 12 may be wrinkled to form channels and then formed by sewing, gathering, and folding a thin sheet of material. More folds or pleats within a given volume of the element result in a larger total surface area of the cooling segment.

[0036] The thickness of the constituent material of the cooling segment 12 is not particularly limited and may be, for example, 5 μm or more and 500 μm or less, or may be 10 μm or more and 250 μm or less.

[0037] [Cigarette rod portion] The mode of the cigarette rod portion 11 is not particularly limited as long as it is a known mode, but it is usually a mode in which a tobacco filler is wrapped with a wrapper. The tobacco filler is not particularly limited, and known ones such as tobacco flakes and reconstituted tobacco sheets can be used. Also, the tobacco filler may contain an aerosol base material. The aerosol base material is a base material that generates an aerosol when heated, and examples thereof include glycerin, propylene glycol, triacetin, 1,3 - butanediol, or a mixture thereof. The content of the aerosol base material in the tobacco filler is not particularly limited, and it is usually 5% by weight or more, preferably 10% by weight or more, based on the total amount of the tobacco filler, from the viewpoint of sufficiently generating an aerosol and imparting a good flavor. Also, it is usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less.

[0038] Further, the tobacco rod portion 11 may have a fitting portion with a heater member or the like for heating the non-combustion heated tobacco. The tobacco rod portion 11 formed by wrapping the tobacco filler with a wrapper preferably has a columnar shape. In this case, the aspect ratio represented by the height in the major axis direction of the tobacco rod portion 11 with respect to the width of the bottom surface of the tobacco rod portion 11 is preferably 1 or more. The shape of the bottom surface is not limited and may be polygonal, rounded polygonal, circular, or 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 tobacco rod portion 11 is preferably about 10 to 70 mm, and the width is preferably about 4 to 9 mm.

[0039] The length in the major axis direction of the tobacco rod portion 11 can be appropriately changed according to the size of the product, but it 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 tobacco rod portion 11 to the length h in the major axis direction of the non-combustion heated tobacco 10 is usually 10% or more, preferably 20% or more, more preferably 25% or more, still more preferably 30% or more, from the viewpoint of the balance between the delivery amount and the aerosol temperature. Also, it is usually 60% or less, preferably 50% or less, more preferably 45% or less, still more preferably 40% or less.

[0040] (Wrapper) The configuration of the cigarette paper is not particularly limited and can be in a general form. For example, those mainly composed of pulp can be cited. As the pulp, in addition to being made from wood pulp such as softwood pulp or hardwood pulp, it may also be obtained by co-papermaking with non-wood pulp such as flax pulp, hemp pulp, sisal pulp, or esparto, which is generally used for cigarette paper for tobacco products. As the type of pulp, chemical pulp, ground pulp, chemiground pulp, or semi-chemical mechanical pulp, etc. obtained by kraft digestion method, acidic / neutral / alkali sulfite digestion method, or soda salt digestion method can be used. - mechanical pulp, etc. can be used.

[0041] Using the above pulp, in the papermaking process by a fourdrinier paper machine, a cylinder paper machine, a cylinder and short-form combined paper machine, etc., the formation is adjusted and made uniform to produce the cigarette paper. Additionally, if necessary, a wet paper strength enhancer can be added to impart water resistance to the cigarette paper, or a sizing agent can be added to adjust the printing condition of the cigarette paper. Furthermore, sizing aids for papermaking such as sulfuric acid bands, various anionic, cationic, nonionic, or amphoteric retention improvers, drainage improvers, or paper strength enhancers, dyes, pH adjusters, defoaming agents, pitch control agents, or slime control agents, etc. can be added.

[0042] The basis weight of the cigarette paper base 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, and more preferably 45 gsm or less. The thickness of the cigarette paper having the above characteristics is not particularly limited. 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, and more preferably 50 μm or less. As the cigarette paper of the non-combustion heating type cigarette, its shape can be a square or a rectangle. When used as a wrapper for wrapping a tobacco filler (for producing a tobacco rod part), the length of one side can be about 12 to 70 mm, the length of another side can be 15 to 28 mm, the preferred length of another side can be 22 to 24 mm, and the more preferred length can be about 23 mm. When the tobacco filler is wound cylindrically with a wrapper, for example, by overlapping the ends of the wrapper in the w direction and the opposite ends by about 2 mm and pasting them, it becomes the shape of a cylindrical paper tube, and the tobacco filler is filled therein. The size of the rectangular wrapper can be determined by the size of the completed tobacco rod part 11. In the case of a member like tip paper that connects and wraps the tobacco rod part 11 and other members adjacent to the tobacco rod part 11, the length of one side can be 20 to 60 mm, and the length of another side can be 15 to 28 mm.

[0043] In addition to the above pulp, the wrapper may contain a filler. The content of the filler can be 10% by weight or more and less than 60% by weight based on the total weight of the wrapper, and it is preferably 15% by weight or more and 45% by weight or less. In the wrapper, 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. Furthermore, 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 flavor and whiteness.

[0044] Various auxiliaries other than the base paper and fillers may be added to the toilet paper. For example, in order to improve water resistance, a water resistance improver can be added. 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, or polyamide epichlorohydrin (PAE), etc. Examples of the sizing agent include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), or highly saponified polyvinyl alcohol with a saponification degree of 90% or more, etc. As an auxiliary, a paper strength enhancer may be added. For example, polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, or polyvinyl alcohol, etc. can be mentioned. In particular, regarding oxidized starch, it is known that the air permeability is improved by using a very small amount (Japanese Patent Laid-Open No. 2017-218699). starch, oxidized starch, CMC, polyamide epichlorohydrin resin, or polyvinyl alcohol, etc. can be mentioned. In particular, regarding oxidized starch, it is known that the air permeability is improved by using a very small amount (Japanese Patent Laid-Open No. 2017-218699). Also, the toilet paper may be appropriately coated.

[0045] The coating agent may be added to at least one of the front and back surfaces of the toilet 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 preferred. For example, alginic acid or its salt (e.g., sodium salt), polysaccharides such as pectin, ethyl cellulose, methyl cellulose, carboxymethyl cellulose, or cellulose derivatives such as nitrocellulose, or starch or its derivatives (e.g., ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, or cationic starch, ester derivatives such as acetic starch, phosphoric starch, or octenyl succinic anhydride starch) can be mentioned.

[0046] [Chip Paper] The structure of the chip paper 15 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 or hardwood pulp, it may also be obtained by mixing and manufacturing non-wood pulp generally used for cigarette rolling paper, such as flax pulp, hemp pulp, sisal pulp, or esparto. These pulps may be used alone or in combination of multiple types at any ratio. Also, the chip paper 15 may be composed of a single sheet, or may be composed of multiple sheets or more. As the form of the pulp, chemical pulp, ground pulp, chemiground pulp, or thermomechanical pulp, etc. obtained by kraft digestion method, acidic / neutral / alkali sulfite digestion method, or soda salt digestion method, etc. can be used. Note that the chip paper 15 may be manufactured by the manufacturing method described later, or a commercially available product may be used. The shape of the chip paper 15 is not particularly limited and can be, for example, square or rectangular.

[0047] The basis weight of the chip paper 15 is not particularly limited, but is usually 32 gsm or more and 40 gsm or less, preferably 33 gsm or more and 39 gsm or less, and more preferably 34 gsm or more and 38 gsm or less. The air permeability of the chip paper 15 is not particularly limited, but is usually 0 Coresta unit or more and 30000 Coresta units or less, and preferably more than 0 Coresta unit and 10000 Coresta units or less. The air permeability is a value measured in accordance with ISO 2965:2009, and when the differential pressure between both sides of the paper is 1 kPa, it is the flow rate (cm 2 of the gas passing through an area of 1 cm 3 ) per minute. 1 Coresta unit (1 Coresta unit, 1 C.U.) is cm 3 / (min·cm2) under 1 kPa.

[0048] In addition to the above pulp, the chip paper 15 may contain fillers, such as metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide, or aluminum oxide, metal sulfates such as barium sulfate or calcium sulfate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, or gypsum. 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.

[0049] In addition to the above pulp and fillers, various auxiliaries may be added to the chip paper 15. For example, in order to improve water resistance, a water resistance improver can be included. 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, or polyamide epichlorohydrin (PAE). Examples of the sizing agent include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), or highly saponified polyvinyl alcohol with a saponification degree of 90% or more.

[0050] A coating agent may be added to at least one of the front and back surfaces of the chip paper 15. 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.

[0051] The configuration of the non-combustion heating type tobacco according to this embodiment can be used in an electric heating type tobacco product described later, but can also be applied to cigarettes (rolled tobacco) accompanied by combustion.

[0052] [Manufacturing method of non-combustion heating type tobacco] The manufacturing method of the non-combustion heating type tobacco described above is not particularly limited, and a known method can be applied. For example, it can be manufactured by winding up the tobacco rod part and the mouthpiece part with chip paper.

[0053] <Electrically heated tobacco product> An electrically heated tobacco product (also simply referred to as an "electrically heated tobacco product") according to another embodiment of the present invention is an electrically heated device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member, and the non-combustion heated tobacco as described above inserted so as to be in contact with the heater member. As an aspect of the electrically heated tobacco product, it may be an aspect of heating the outer peripheral surface of the non-combustion heated tobacco 10 as shown in FIG. 2, or may be an aspect of heating from the inside of the tobacco rod portion 11 of the non-combustion heated tobacco 10 as shown in FIG. 3. Although the electrically heated device 20 shown in FIGS. 2 and 3 is provided with air introduction holes, they are not shown here. Hereinafter, the electrically heated tobacco product 30 will be described with reference to FIG. 3. Regarding the non-combustion heated tobacco 10 in FIGS. 2 and 3, some of the reference numerals representing the respective configurations shown in FIGS. 2 and 3 are omitted. The electrically heated tobacco product 30 is used by being inserted so that the non-combustion heated tobacco 10 described above comes into contact with a heater member 21 disposed inside the electrically heated device 20. The electrically heated device 20 has a battery unit 22 and a control unit 23, for example, inside a resinous housing 24. When the non-combustion heated tobacco 10 is inserted into the electrically heated device 20, the outer peripheral surface of the tobacco rod portion 11 comes into contact with the heater member 21 of the electrically heated device 20, and eventually the entire outer peripheral surface of the tobacco rod portion 11 and a part of the outer peripheral surface of the tip paper come into contact with the heater member 21. The heater member 21 of the electrically heated device 20 generates heat under the control of the control unit 23. By the heat being transmitted to the tobacco rod portion 11 of the non-combustion heated tobacco 10, aerosol base materials, flavor components, etc. contained in the tobacco filling of the tobacco rod portion 11 volatilize.

[0054] The heater member 21 may be, for example, a sheet heater, a flat heater, or a cylindrical heater. A sheet heater is a flexible sheet-shaped heater, and examples thereof include heaters including a film (with a thickness of about 20 μm to 225 μm) of a heat-resistant polymer such as polyimide. A flat heater is a rigid flat-shaped heater (with a thickness of about 200 μm to 500 μm), and examples thereof include heaters having a resistance circuit on a flat base material and having the portion as a heat-generating part. A cylindrical heater is a hollow or solid cylindrical heater (with a thickness of about 200 μm to 500 μm), and examples thereof include heaters having a resistance circuit on the outer peripheral surface of a cylinder made of metal or the like and having the portion as a heat-generating part. Also included are rod-shaped heaters and conical heaters made of metal or the like that have a resistance circuit inside and have the portion as a heat-generating part. The circumferential cross-sectional shape of the cylindrical heater may be circular, elliptical, polygonal, or rounded polygonal, etc. In the case of heating the outer peripheral surface of the non-combustion heated tobacco 10 as shown in FIG. 2, the above-mentioned sheet heater, flat heater, and cylindrical heater can be used. On the other hand, in the case of heating from the inside of the tobacco rod portion 11 in the non-combustion heated tobacco 10 as shown in FIG. 3, the above-mentioned flat heater, columnar heater, and conical heater can be used. When the length of the heater member 21 in the major axis direction is set to L mm as the length of the tobacco rod portion 11 in the major axis direction, it can be within the range of L ± 5.0 mm. From the perspective of aerosol delivery, that is, sufficiently transferring heat to the tobacco rod portion 11 and sufficiently volatilizing the aerosol base material, flavor components, etc. contained in the tobacco filler, the length of the heater member 21 in the major axis direction is preferably L mm or more. From the perspective of suppressing the generation of components that undesirably affect flavors, etc., it is preferably L + 0.5 mm or less, L + 1.0 mm or less, L + 1.5 mm or less, L + 2.0 mm or less, L + 2.5 mm or less, L + 3.0 mm or less, L + 3.5 mm or less, L + 4.0 mm or less, L + 4.5 mm or less, or L + 5.0 mm or less.

[0055] The heating intensity such as the heating time and heating temperature of the non-combustion heated cigarette 10 by the heater member 21 can be set in advance for each electric heating type cigarette product 30. For example, after inserting the non-combustion heated cigarette 10 into the electric heating device 20, by performing preheating for a certain period of time, the temperature of the outer peripheral surface of the portion inserted into the electric heating device 20 in the non-combustion heated cigarette 10 is heated until it reaches X (°C), and then it can be set in advance so as to maintain a certain temperature below X (°C). The above X (°C) is preferably 80°C or higher and 400°C or lower from the viewpoint of the delivery amount of components generated by heating, etc. Specifically, it can be 80°C, 90°C, 100°C, 110°C, 120°C, 130°C, 140°C, 150°C, 160°C, 170°C, 180°C, 190°C, 200°C, 210°C, 220°C, 230°C, 240°C, 250°C, 260°C, 270°C, 280°C, 290°C, 300°C, 310°C, 320°C, 330°C, 340°C, 350°C, 360°C, 370°C, 380°C, 390°C, 400°C. Due to the heating by the heater member 21, the vapor containing components derived from the aerosol base material and components derived from the flavor components generated from the tobacco rod portion 11 reaches the user's oral cavity through the mouthpiece portion 14 composed of the cooling segment 12, the filter segment 13, etc.

[0056] The opening V provided in the cooling segment 12 is preferably present on the suction port end side rather than the end portion (the portion indicated by the arrow X in the figure) on the suction port end side of the region in the cooling segment 12 that contacts the electric heating device 20 in the cooling segment 12, as shown in FIG. 4, from the viewpoints of promoting the inflow of external air and suppressing the retention of components generated by heating and air in the cooling segment 12. Also, the insertion port of the non-combustion heated cigarette 10 of the electric heating device 20 may be tapered as shown in FIG. 5 in order to facilitate the insertion of the non-combustion heated cigarette 10. In this case, the end portion on the suction port end side of the region in contact with the electric heating device 20 is the position of the portion indicated by the arrow Y in the figure. Regarding the non-combustion heated cigarette 10 in FIGS. 4 and 5, some of the reference numerals representing the respective configurations shown in FIGS. 1 to 3 are omitted.

Example

[0057] The present invention will be described more specifically by way of examples. However, the present invention is not limited to the following description of the examples as long as it does not depart from the gist thereof.

[0058] <Production of non-combustion heated tobacco> [Example 1] As a tobacco filler, a mixture of 15 g / 100 g of glycerin and 4 g / 100 g of propylene glycol was prepared in the cuts of the sheet tobacco. Using a high-speed winding machine, the tobacco filler was wound up with a rolling paper (manufactured by Nippon Paper Papiria, basis weight 35 g / m 2 , thickness 52 μm). The cut weight per stick was 0.8 g, the rolling circumference was 22 mm, and the rolling length was 68 mm. The wound tobacco rod parts were stored in plastic sealed containers, 200 pieces each, for each level. The stored tobacco rod parts were cut to a length of 20 mm. Then, the tobacco rod part, a paper tube with a length of 20 mm, a center hole having a through hole with a length of 12 mm (diameter 4.5 mm), and a filter filter material composed of cellulose acetate fibers having a circumferential cross-section of Y shape with a length of 8 mm (single fiber denier (g / 9000 m): 12, total fiber denier (g / 9000 m): 28000) (density: 0.122 g / cm 3 , compression change rate P (hereinafter referred to as "hardness"): 88%) were wound with the chip paper prepared above to produce a non-combustion heated tobacco without openings. Then, from the boundary between the paper tube and the center hole filter, at a position 5.5 mm in the direction of the paper tube side (25.5 mm from the suction end of the non-combustion heated tobacco), 17 holes were opened concentrically in the circumferential direction of the paper tube and penetrating both the chip paper and the paper tube to provide an opening, and the non-combustion heated tobacco of Example 1 was produced. The ventilation resistance in the major axis direction of the filter segment of the non-combustion heated tobacco was 1.35 mmH2O / mm. The compression change rate P (hardness) of the filter medium represented by the above formula (1) was measured using a SODIM-H Hardness module manufactured by Sodim SAS. This is the same for all the following examples and comparative examples.

[0059] [Comparative Example 1] A filter medium with a single fiber denier (g / 9000m) of 12 and a total fiber denier (g / 9000m) of 28000 (density: 0.122 g / cm 3 ) was changed to a filter medium with a single fiber denier (g / 9000m) of 5.9 and a total fiber denier (g / 9000m) of 35000 (density 0.143 g / cm 3 ), hardness: 87%). A non-combustible heated tobacco of Comparative Example 1 was produced in the same manner as the non-combustible heated tobacco of Example 1, except for the above changes. The ventilation resistance in the major axis direction of the filter segment of this non-combustible heated tobacco was 2.62 mmH2O / mm.

[0060] [Example 2] A flavor capsule containing menthol (spherical with a diameter of 3.5 mm. The flavor capsules in other examples and comparative examples are the same.) was placed inside the filter medium. A non-combustible heated tobacco of Example 2 was produced in the same manner as the non-combustible heated tobacco of Example 1, except that the length of the center hole was changed from 12 mm to 8 mm and the length of the filter medium was changed from 8 mm to 12 mm. The density (density in the state excluding the flavor capsule), hardness, and ventilation resistance in the major axis direction of the filter segment of this non-combustible heated tobacco were 0.122 g / cm 3 , 88%, and 1.93 mmH2O / mm, respectively. The parameters related to the filter segment were evaluated without crushing the flavor capsule. This is the same for other examples and comparative examples using flavor capsules.

[0061] [Example 3] A filter medium with a single fiber denier (g / 9000m) of 12 and a total fiber denier (g / 9000m) of 28000 (density: 0.122 g / cm 3From ( ), a filter medium with a single fiber denier (g / 9000m): 8 and a total fiber denier (g / 9000m): 28000 (density: 0.119 g / cm 3 , hardness: 89%), except for changing to this, a non-combustion heated tobacco of Example 3 was produced in the same manner as the non-combustion heated tobacco of Example 1. The ventilation resistance in the major axis direction of the filter segment of the non-combustion heated tobacco was 1.69 mmH2O / mm .

[0062] [Example 4] A flavor capsule containing menthol was placed inside the filter medium. The length of the center hole was changed from 12 mm to 8 mm, and the length of the filter medium was changed from 8 mm to 12 mm. A filter medium with a single fiber denier (g / 9000m): 12 and a total fiber denier (g / 9000m): 28000 (density: 0.122 g / cm 3 , hardness: 88%) was changed to a filter medium with a single fiber denier (g / 9000m): 8 and a total fiber denier (g / 9000m): 28000 (density: 0.123 g / cm 3 , hardness: 91%). Except for this change, a non-combustion heated tobacco of Example 4 was produced in the same manner as the non-combustion heated tobacco of Example 1. The ventilation resistance in the major axis direction of the filter segment of the non-combustion heated tobacco was 2.76 mmH2O / mm.

[0063] [Example 5] The length of the center hole was changed from 12 mm to 6 mm, and the length of the filter medium was changed from 8 mm to 14 mm. Except for this change, a non-combustion heated tobacco of Example 5 was produced in the same manner as the non-combustion heated tobacco of Example 1. The density, hardness, and ventilation resistance in the major axis direction of the filter segment of the non-combustion heated tobacco were 0.129 g / cm 3 , 90%, and 1.58 mmH2O / mm, respectively.

[0064] [Example 6] The length of the center hole was changed from 12 mm to 6 mm, and the length of the filter medium was changed from 8 mm to 14 mm. Except for changing the filter medium from single fiber denier (g / 9000m): 12, total fiber denier (g / 9000m): 28000 (density: 0.122 g / cm 3 , hardness: 88%) to single fiber denier (g / 9000m): 8, total fiber denier (g / 9000m): 28000 (density: 0.119 g / cm 3 , hardness: 89%), a non-combustible heated tobacco of Example 6 was produced in the same manner as the non-combustible heated tobacco of Example 1. The ventilation resistance in the major axis direction of the filter segment of the non-combustible heated tobacco was 1.69 mmH2O / mm.

[0065] [Example 7] A flavor capsule containing menthol was placed inside the filter medium, and 6 mg / 12 mm of menthol was added to the filter medium. Except for changing the length of the center hole from 12 mm to 8 mm and the length of the filter medium from 8 mm to 12 mm, a non-combustible heated tobacco of Example 7 was produced in the same manner as the non-combustible heated tobacco of Example 1. The density (density in the state excluding the flavor capsule), hardness, and ventilation resistance in the major axis direction of the filter segment of the non-combustible heated tobacco were 0.122 g / cm 3 , 91%, and 2.48 mmH2O / mm, respectively.

[0066] [Comparative Example 2] A flavor capsule containing menthol was placed inside the filter medium, and 6 mg / 12 mm of menthol was added to the filter medium. The length of the center hole was changed from 12 mm to 8 mm, and the length of the filter medium was changed from 8 mm to 12 mm. Except for changing the filter medium from single fiber denier (g / 9000m): 12, total fiber denier (g / 9000m): 28000 (density: 0.122 g / cm 3 , hardness: 88%) to single fiber denier (g / 9000m): 5.9, total fiber denier (g / 9000m): 35000 (density (density in the state excluding the flavor capsule): 0.152 g / cm 3, except for changing to a hardness of 94%, a non-combustible heated tobacco of Comparative Example 2 was produced in the same manner as the non-combustible heated tobacco of Example 1. The ventilation resistance in the major axis direction of the filter segment of the non-combustible heated tobacco was 6.23 mmH2O / mm, respectively.

[0067] [Comparative Example 3] A filter medium with a single fiber denier (g / 9000m): 12 and a total fiber denier (g / 9000m): 28000 (density: 0.122 g / cm 3 ) was changed to a filter medium with a single fiber denier (g / 9000m): 20 and a total fiber denier (g / 9000m): 25000 (density 0.113 g / cm 3 , hardness: 85%). Except for this change, a non-combustible heated tobacco of Comparative Example 3 was produced in the same manner as the non-combustible heated tobacco of Example 1. The ventilation resistance in the major axis direction of the filter segment of the non-combustible heated tobacco was 0.80 mmH2O / mm. Since sufficient hardness could not be obtained for the non-combustible heated tobacco of Comparative Example 3, the evaluation of the delivery amount described below was not performed.

[0068] The manufacturing conditions and characteristics of the non-combustible heated tobacco in each of the above-described examples are summarized in Table 1.

[0069]

Table 1

[0070] <Evaluation of Delivery Amount> Each non-combustible heated tobacco produced in Examples 1 to 7 and Comparative Examples 1 to 3 was subjected to a smoking test to evaluate the delivery amount of the components generated by heating. The smoking test was conducted under the following conditions with reference to Canadian Intense Smoking (CIR). An electric heating device that performs external heating was used. After inserting a non-combustible heated tobacco product, the heater temperature was raised to 295°C within 21 seconds, then lowered to 260°C within 5 seconds, and maintained at 260°C until the evaluation was completed (about 330 seconds). After that, the smoking test was conducted using a single-port automatic smoking machine manufactured by Borgwaldt, with an automatic smoking operation performed under the conditions of a flow rate of 55 cc / 2 seconds and a smoking interval of 30 seconds. At this time, the aperture provided in the cooling segment was set to be 25.5 mm from the end on the suction port side of the region where the non-combustible heated tobacco product and the electric heating device are in contact. The mainstream smoke generated in the smoking test was collected on a Cambridge pad. For Examples 1 to 6 and Comparative Example 1, the puff operation was performed 12 times, and for Examples 7 and 8 and Comparative Examples 2 and 3, the puff operation was performed 10 times. After that, the Cambridge pad was taken out, extracted with 10 ml of ethanol, and the amounts of each component in the mainstream smoke collected in each puff operation were measured using GC-MS. In the non-combustible heated tobacco products in Examples 1 to 9 and Comparative Example 1, as indicators of the amounts of components in the mainstream smoke obtained from the above measurements, the amounts of each component of nicotine and glycerin are shown in Tables 2 and 3 below, and FIGS. 6 to 9. Specifically, FIG. 6 shows the results of Example 1 and 3 and Comparative Example 1 (examination of the influence of fiber denier under the condition that the length of the center hole: the length of the filter segment = 12:8, without capsule, without menthol), FIG. 7 shows the results of Example 7 and Comparative Example 2 (examination of the influence of fiber denier under the condition that the length of the center hole: the length of the filter segment = 8:12, with capsule, with menthol), FIG. 8 shows the results of Example 2 and 4 (examination of the influence of fiber denier under the condition that the length of the center hole: the length of the filter segment = 12:8, with capsule, without menthol), and FIG. 9 shows the results of Example 5 and 6 (examination of the influence of single fiber denier under the condition that the length of the center hole: the length of the filter segment = 6:14, without capsule, without menthol). For the examples and comparative examples with capsule addition, the above evaluation was performed after crushing the flavor capsule.

[0071]

Table 2

[0072]

Table 3

[0073] From the above Tables 1 and 2, and FIGS. 6 to 9, regardless of whether flavor capsules are added to the filter medium and whether menthol is added, non-combustible heated tobacco with a single fiber denier of 8 or more and 12 or less has an advantage in terms of the delivery amount of nicotine and glycerin, which are indicators of the component amounts of mainstream smoke, compared to non-combustible heated tobacco with a short fiber denier outside this range.

Explanation of Reference Numerals

[0074] 10 Non-combustible heated tobacco 11 Tobacco rod part 12 Cooling segment 13 Filter segment 14 Mouthpiece part 15 Tip paper V Aperture 20 Electric heating device 21 Heater member 22 Battery unit 23 Control unit 24 Housing 30 Electric heating tobacco product

Claims

1. A rod-shaped non-combustible heat-not-burn tobacco product comprising a tobacco rod portion and a mouthpiece portion, The mouthpiece portion includes a filter segment having a filter medium, the airflow resistance of the filter segment in the longitudinal direction is 1.35 mmH 2 O / mm or more and 2.76 mmH 2 O / mm or less; The filter medium has a Y-shaped cross section in the circumferential direction and is composed of fibers having a single fiber denier of 8 or more and 12 or less, The length of the filter medium is 5 mm or more and 20 mm or less, A non-combustion heated tobacco product, wherein the filter material has a compression change rate P, represented by the following formula (1), of 88% or more and 91% or less: P=(D1×100) / D2 (1) P (%): Compression change rate D1 (mm): The diameter of the filter medium in the compression direction after compressing the filter medium under conditions of a compressive load of 3 N / mm per unit length in the longitudinal direction and a compression time of 10 seconds so that the filter medium deforms in a direction perpendicular to the air flow direction. D2 (mm): Average diameter of the filter medium before compression

2. A fragrance capsule is disposed inside the filter medium. The non-combustion heated tobacco product according to claim 1 .

3. An electric heating device including a heater member, a battery unit that serves as a power source for the heater member, and a control unit for controlling the heater member; The non-combustion heated tobacco product according to claim 1 or 2, which is inserted so as to contact the heater member; An electrically heated tobacco product comprising:

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