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

Abstract

To provide a non-combustion heating type cigarette and an electric heating type cigarette product in which improvement has been made in delivery of a component generated by heating.SOLUTION: A rod-like non-combustion heating type cigarette includes a cigarette rod part and a mouthpiece part. The mouthpiece part includes a cooling segment and a filter segment including a filter medium. The cooling segment is sandwiched by the cigarette rod part and the filter segment adjacently in the axial direction of the non-combustion heating type cigarette, and an aperture is provided concentrically in a circumferential direction of the cooling segment. The aperture exists in a region of 4 mm or more in the direction on a cooling segment side from the border of the cooling segment and the filter segment.SELECTED DRAWING: Figure 1

Description

Technical Field

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

Background Art

[0002] In recent years, as an alternative to cigarettes (rolled tobacco), an electrically heated tobacco product composed of a non-combustion heated tobacco used by inserting it into an electrically heated device has been developed (Patent Document 1). The non-combustion heated tobacco generally includes a tobacco rod in which tobacco shreds and materials for generating flavor components are wound with a wrapper paper, a mouthpiece for sucking components generated from the tobacco rod by heating, and a tip paper for wrapping these. Generally, in an electrically heated tobacco product, after inserting a non-combustion heated tobacco into an electrically heated device, by generating heat from a heater member, the tobacco rod is heated starting from a 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 for electrically heated tobacco products but also for cigarettes, and has been widely studied. Patent Document 2 discloses a cigarette in which by adding a volatile containing agent contained in a gel of a polysaccharide to a tobacco rod, the delivery amount of a 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 a 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] Patent Documents 2 and 3 disclose techniques 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 techniques for improving the delivery of components generated by heating from the perspective of the materials contained in such tobacco, there has been little study on the techniques for improving the delivery of such components from the perspective of the structure of the tobacco, 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 delivery of components is particularly desired. Therefore, an object of the present invention is to provide a non-combustion heated tobacco and an electrically heated tobacco product in which the delivery of components generated by heating is improved. [Means for Solving the Problems]

[0006] As a result of intensive studies, the inventors of the present invention have found that the above problems can be solved by providing an opening in a cooling part provided in a mouthpiece part and arranging the opening in a specific region, 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 cooling segment and a filter segment containing a filter medium, and in the axial direction of the non-combustion heated tobacco, the cooling segment is sandwiched adjacent to the tobacco rod part and the filter segment, and The non-combustion heated tobacco has apertures provided concentrically in the circumferential direction of the cooling segment, and the apertures are present in a region of 4 mm or more in the direction of the cooling segment side from the boundary between the cooling segment and the filter segment. [2] The non-combustion heated tobacco according to [1], wherein the apertures are present in a region of 24 mm or more in the direction of the cooling segment side from the suction port end of the non-combustion heated tobacco. [3] The non-combustion heated tobacco according to [1] or [2], wherein the apertures are present in a region of 7 mm or less in the direction of the cooling segment side from the boundary between the cooling segment and the filter segment. [4] The non-combustion heated tobacco according to [1] or [2], wherein the axial length of the cooling segment is 20 mm or more, and the apertures are present in a region of 5 mm or more in the direction of the cooling segment side from the boundary between the cooling segment and the tobacco rod portion. [5] An electrically heated tobacco product comprising an electrically heated device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member, and the non-combustion heated tobacco according to any one of [1] to [4] inserted so as to be in contact with the heater member. [6] The electrically heated tobacco product according to [5], wherein the apertures are present on the suction port side of the end portion on the suction port side of the region in contact with the device in the cooling segment. [Advantages of the Invention]

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

[0009]

Figure 1

Figure 2

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Figure 10

Mode 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-combustible heated tobacco> A non-combustible heated tobacco (also simply referred to as "non-combustible heated tobacco") which is an embodiment of the present invention is a rod-shaped non-combustible heated tobacco comprising a tobacco rod portion and a mouthpiece portion, The mouthpiece portion includes a cooling segment and a filter segment including a filter medium. In the axial direction of the non-combustion heated tobacco, the cooling segment is sandwiched adjacent to the tobacco rod portion and the filter segment, and Openings are provided concentrically in the circumferential direction of the cooling segment, and the openings are present in a region of 4 mm or more in the direction of the cooling segment from the boundary between the cooling segment and the filter segment, which is a non-combustion heated tobacco. An example of a non-combustion heated tobacco according to an embodiment is shown in FIG. 1. Hereinafter, the non-combustion heated tobacco will be described with reference to FIG. 1.

[0012] The non-combustion heated tobacco 10 shown in FIG. 1 is a rod-shaped non-combustion heated tobacco including a tobacco rod portion 11, a mouthpiece portion 14, and a tip paper 15 formed by winding these. The mouthpiece portion 14 includes a cooling segment 12 and a filter segment 13 including a filter medium. In the axial direction (also referred to as the "long axis direction") of the non-combustion heated tobacco 10, the cooling segment 12 is sandwiched adjacent to the tobacco rod portion 11 and the filter segment 13, and openings V are provided concentrically in the circumferential direction of the cooling segment 12.

[0013] The openings V provided in the cooling segment 12 in the non-combustion heated tobacco 10 shown in FIG. 1 are usually holes for promoting the inflow of external air by the user's suction. By this inflow of air, the components flowing in from the tobacco rod portion 11 and the temperature of the air can be lowered. Further, the openings V in the present embodiment are present in 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. By adopting such a configuration, the cooling ability to lower the temperature of the components and air generated by heating can be improved, and further, the retention of the components and air in the cooling segment can be suppressed, and thus the delivery amount of the components can be improved. Incidentally, examples of the components generated by heating include flavor components derived from spices, nicotine or tar derived from tobacco leaves, or aerosol components derived from an aerosol base material. In the present specification, the aerosol base material is a base material for generating an aerosol.

[0014] The rod-shaped non-combustible heated tobacco 10 preferably has a columnar shape that satisfies a shape with an aspect ratio of 1 or more, which is defined as follows. Aspect ratio = h / w w is the width of the bottom surface of the columnar body (in the present specification, it is the width of the bottom surface on the tobacco rod portion side), h is the height of the columnar body, and it is preferable that h ≧ w. In the present 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. When the bottom surface is circular, the width w is the diameter, when it is elliptical, it is the major axis, or when it is polygonal or rounded polygonal, it is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. The length h in the long axis direction of the non-combustible heated tobacco 10 is not particularly limited. For example, it is usually 40 mm or more, preferably 45 mm or more, more preferably 50 mm or more. Also, it is usually 100 mm or less, preferably 90 mm or less, more preferably 80 mm or less. The width w of the bottom surface of the columnar body of the non-combustible 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 preferably 9 mm or less, more preferably 8 mm or less. The ratio of the lengths of the cooling segment and the filter segment in the longitudinal length of the non-combustion heated tobacco (cooling segment: filter segment) is not particularly limited, but from the viewpoints of the amount of flavor delivery and appropriate aerosol temperature, it is usually 0.60 to 1.40:1.40 to 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, still more preferably 0.90 to 1.10:0.90 to 1.10, and even 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 obtain the effects of suppressing the loss due to the adhesion of the cooling effect, the generated vapor and aerosol to the inner wall of the cooling segment, and achieving a balance in the air volume and flavor adjustment function of the filter, thereby obtaining a good flavor and flavor intensity. In particular, when the cooling segment 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.

[0015] The ventilation resistance in the longitudinal direction per non-combustion heated tobacco 10 is not particularly limited, but from the viewpoint of ease of inhalation, it is usually 8 mmHg 2 or more, preferably 10 mmHg 2 or more, more preferably 12 mmHg 2 or more, and usually 100 mmHg 2 or less, preferably 80 mmHg 2 or less, and more preferably 60 mmHg 2 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 Cerulean Co., Ltd. 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 does not occur on the side surface of the non-combustion heated tobacco 10. The unit is generally mmHg 2It is represented by O. The relationship between the ventilation resistance and the length of the non-combustion heated tobacco is known to be a proportional relationship in the length range normally implemented (length 5 to 200 mm). If the length is doubled, the ventilation resistance of the non-combustion heated tobacco doubles.

[0016] [Mouthpiece part] The configuration of the mouthpiece part 14 includes a cooling segment 12 and a filter segment 13 including a filter medium, and is not particularly limited as long as the cooling segment 12 is configured to be sandwiched adjacent to the tobacco rod part 11 and the filter segment 13 with respect to the axial direction of the non-combustion heated tobacco 10. Hereinafter, the filter segment 13 and the cooling segment 12 will be described in detail.

[0017] (Filter segment) The filter segment 13 includes a filter medium and is not particularly limited as long as it has the function of a general filter. General functions of the filter include, for example, adjustment of the amount of air mixed when sucking aerosol etc., 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 components generated are less and the filling rate of the tobacco filler tends to be low compared to a cigarette product, preventing the fall of the tobacco filler while suppressing the filtering function is also one of the important functions.

[0018] The shape of the filter segment 13 is not particularly limited, and a known shape can be adopted. Usually, it can be a cylindrical shape and can be in the following modes.

[0019] The cross-sectional shape in the circumferential direction of the filter segment 13 is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product, but is usually 4.0 mm or more and 9.0 mm or less. Preferably, it is 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 the diameter of a circle assumed to have the same area as the area of the cross-section, and the diameter of that circle is applied. The circumferential length of the circumferential cross-sectional shape of the filter segment 13 can be appropriately changed according to the size of the product, but it is usually 14.0 mm or more and 27.0 mm or less, preferably 15.0 mm or more and 26.0 mm or less, and more preferably 16.0 mm or more and 25.0 mm or less. The axial length of the filter segment 13 can be appropriately changed according to the size of the product, but it is usually 15 mm or more and 35 mm or less, preferably 17.5 mm or more and 32.5 mm or less, and more preferably 20.0 mm or more and 30.0 mm or less. The shape and dimensions of the filter medium can be appropriately adjusted so that the shape and dimensions of the filter segment 13 are within the above ranges.

[0020] The air permeability resistance per 120 mm of the axial length of the filter segment 13 is not particularly limited, but is usually 40 mmH 2 O or more and 300 mmH 2 O or less, and 70 mmH 2 O or more and 280 mmH 2 O or less, preferably 90 mmH 2 O or more and 260 mmH 2 O or less is more preferable. The above air permeability resistance is measured according to the ISO standard method (ISO6565), for example, using a filter air permeability resistance measuring instrument manufactured by Cellierian. The air permeability resistance of the filter segment 13 refers to the air 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 mmH 2It is represented by O. The relationship between the air permeability resistance of the filter segment 13 and the length of the filter segment 13 is known to be a proportional relationship within the length range (length 5 to 200 mm) usually implemented. If the length doubles, the air permeability resistance of the filter segment 13 doubles.

[0021] As the filter medium constituting the filter segment 13, for example, those manufactured by the manufacturing method described later may be used, or commercially available products may be used. In addition, the form of the filter segment 13 is not particularly limited, and it can be a flat filter including a single filter segment, or a multi-segment filter including a plurality of filter segments such as a dual filter or a triple filter.

[0022] 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 a method of 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 13, the adjustment of the air permeability 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.

[0023] The form of the filter medium constituting the filter segment 13 is not particularly limited, and known forms may be adopted. For example, those obtained by processing cellulose acetate tow into a cylindrical shape can be mentioned. The single fiber fineness and total fineness of cellulose acetate tow are not particularly limited, but in the case of the mouthpiece part with a circumference of 22 mm, the single fiber fineness is preferably 5 g / 9000 m or more and 12 g / 9000 m or less, and the total fineness is preferably 12000 g / 9000 m or more and 35000 g / 9000 m or less. The cross-sectional shape of the fibers of cellulose acetate tow includes circular, elliptical, Y-shaped, I-shaped, or R-shaped, etc. In the case of a filter filled with cellulose acetate tow, triacetin 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, the acetate Instead of the to filter, a paper filter filled with sheet-like pulp paper may be used.

[0024] The density of the filter medium is not particularly limited, but is usually 0.10 g / cm 3 or more and 0.25 g / cm 3 or less, and preferably 0.11 g / cm 3 or more and 0.24 g / cm 3 or less, and more preferably 0.12 g / cm 3 or more and 0.23 g / cm 3 or less.

[0025] The filter medium may include a crushable additive release container (for example, a capsule) containing a crushable outer shell such as gelatin. The form of the 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 containing a crushable outer shell such as gelatin. In this case, when the capsule is broken by the user of the tobacco product before, during, or after use, the liquid or substance (usually a flavoring agent) contained in the capsule is released, and then the liquid or substance is transmitted to the smoke of the tobacco during the use of the tobacco product and to the surrounding environment after use. The form of the capsule is not particularly limited. For example, it may be a fragile capsule, and its shape is preferably spherical. As the additive contained in the capsule, any of the above-mentioned additives may be included, but in particular, it is preferably included a flavoring agent or 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. Incidentally, the use of the capsule containing the additive is well known in the art. Fragile capsules and their manufacturing methods are well known in the art. Examples of the flavoring agent may include menthol, spearmint, peppermint, fenugreek, or clove, or medium-chain fatty acid triglyceride (MCT), etc. The flavoring agent may be menthol, or menthol or the like, or a combination thereof can be used.

[0026] From the viewpoint of improving the strength and structural rigidity, the filter segment 13 may be provided with a winding paper (filter plug winding paper) for winding the above-mentioned filter filter material or the like. The form of the winding paper is not particularly limited, and may include a seam containing one or more rows of adhesives. The adhesive may include a hot melt adhesive, and further, the hot melt adhesive may include polyvinyl alcohol. Further, 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 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 take-up paper may or may not be coated. However, from the perspective of imparting functions other than strength and structural rigidity, it is preferably coated with a desired material.

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

[0028] The center hole segment is composed of a filling layer having one or more hollow portions and an inner plug wrapper (inner take-up paper) covering the filling layer. For example, the center hole segment is composed of a filling layer having a hollow portion and an inner plug wrapper covering the filling layer. The center hole segment has a function of enhancing the strength of the mouthpiece portion. 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, 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 cellulose acetate and cured. Since the filling density of the fibers in the filling layer is high, when suction is applied, air and aerosol flow only through the hollow portion, and hardly flow through 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.

[0029] 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. Further, the tobacco rod portion 11, the cooling segment 12, and the connected center hole segment and filter medium may be connected, for example, by a mouthpiece lining paper. These connections can be made, for example, by applying an adhesive such as vinyl acetate-based adhesive to the inner surface of the mouthpiece lining paper and then winding the tobacco rod portion 11, the cooling segment 12, and the connected center hole segment and filter medium. Note that these may be connected in multiple times using multiple lining papers.

[0030] (Cooling segment) The cooling segment 12 is sandwiched adjacent to the tobacco rod portion and the filter segment, and is usually a rod-shaped member provided with a cavity having a hollow (void) cross-section in the circumferential direction such as a cylinder. As shown in FIG. 2, the cooling segment 12 is provided with apertures V (also referred to as "ventilation filters (Vf)" in the art) in the circumferential direction and concentrically. In FIG. 2, eight apertures V are arranged concentrically, but the number of apertures V is not limited to this. Further, the apertures V are present in a region of 4 mm or more in the direction of the cooling segment side from the boundary between the cooling segment and the filter segment. The presence of the apertures V allows air to flow into the interior of the cooling portion from the outside during use, and can lower the temperature of the components and air flowing in from the tobacco rod portion. Further, by setting the position where the apertures V are provided within a region of 4 mm or more in the direction of the cooling segment side from the boundary between the cooling segment and the filter segment, not only can the cooling capacity be improved, but also the residence of the components generated by heating within the cooling segment can be suppressed, and the delivery amount of the components can be improved. In addition, when an aerosol base material is used for the tobacco rod portion, steam containing the aerosol base material and the tobacco flavor component generated by heating the tobacco rod contacts the outside air and liquefies as the temperature decreases, which can promote the generation of aerosol. Further, when the concentrically arranged apertures V are treated as one aperture group, the number of aperture groups 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 a region less than 4 mm in the direction of the cooling segment from the boundary between the cooling segment and the filter segment. In addition, 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, an aperture is provided in the tip paper 15 at a position directly above the aperture V provided in the cooling segment 12 preferably. 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 at the same time.

[0031] The aperture is preferably provided such that the air inflow ratio from the aperture when suctioning at 17.5 ml / second with an automatic smoking machine (the volume ratio of the air flowing in from the aperture when the ratio of the air suctioned from the mouth end is 100% by volume) is 10% by volume or more and 90% by volume or less, preferably 50% by volume or more and 80% by volume or less, more preferably 55% by volume or more and 75% by volume or less. For example, the number of apertures V per aperture group is selected from the range of 5 to 50, and the diameter of the aperture V is selected from the range of 0.1 to 0.5 mm, and can be achieved by a combination of these selections. The above air inflow ratio can be measured by using an automatic smoking machine (for example, a single-stem automatic smoking machine manufactured by Borgwaldt) and a method compliant with ISO9512.

[0032] The region where the aperture V exists is not particularly limited as long as it is 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 from the viewpoint of improving the delivery of the components generated by heating. However, from the viewpoint of further improving the delivery of the components, it is preferably a region of 4.5 mm or more, more preferably a region of 5 mm or more, still more preferably a region of 5.5 mm or more. Also, from the viewpoint of ensuring the cooling function, it is 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. The region where the aperture V exists is preferably a region of 24 mm or more in the direction of the cooling segment from the suction end of the non-combustion heated cigarette from the viewpoint of improving the delivery of the components generated by heating, preferably a region of 24.5 mm or more, preferably a region of 25 mm or more, more preferably a region of 25.5 mm or more. Also, from the viewpoint of ensuring the cooling function, it is preferably a region of 35 mm or less, more preferably a region of 30 mm or less, still more preferably a region of 27 mm or less. Also, considering the boundary between the cooling segment 12 and the tobacco rod portion 11 as a reference, when the axial length of the cooling segment 12 is 20 mm or more, the region where the aperture V exists is preferably a region of 5 mm or more in the direction of the cooling segment from the boundary between the cooling segment 12 and the tobacco rod portion 11 from the viewpoint of ensuring the cooling function, more preferably a region of 10 mm or more, still more preferably a region of 13 mm or more. Also, from the viewpoint of improving the delivery of the components generated by heating, it is preferably 16 mm or less, more preferably a region of 15.5 mm or less, still 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, more preferably 100 μm or more and 500 μm or less, and even more preferably 300 μm or more and 800 μm or less. The 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, more preferably 25 mm or more, and usually 40 mm or less, preferably 35 mm or less, 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, and by setting it to be equal to or less than the above upper limit, 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 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 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 cooling segment 12. The total surface area of the cooling segment 12 is preferably 400 mm 2 / mm or more and more preferably 450 mm 2 / mm or more, while preferably 600 mm 2 / mm or less and more preferably 550 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 formed by wrinkling to form channels and then by sewing, gathering, and folding a thin material sheet. A large number of folds or pleats within a given volume of the element results in a large 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] [tobacco rod part] The mode of the tobacco rod part 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 the first tobacco filler, the second tobacco filler, or the third tobacco filler described later can be used. In the present specification, a molded product of dried tobacco such as the tobacco cut, tobacco sheet, tobacco granule, etc. described later may be simply referred to as "dried tobacco leaf". Further, the tobacco rod part 11 may have a fitting part with a heater member or the like for heating the tobacco product. The tobacco rod part 11 formed by wrapping a 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 part 11 with respect to the width of the bottom surface of the tobacco rod part 11 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 tobacco rod part 11 is preferably about 10 to 70 mm, and the width is preferably about 4 to 9 mm.

[0038] The length of the tobacco rod part 11 in the major axis direction 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, and still more preferably 25 mm or less. In addition, the ratio of the length of the tobacco rod portion 11 to the overall length h in the major axis direction of the non-combustion heated tobacco 10 is not particularly limited, but from the perspective 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.

[0039] The content of dried tobacco leaves in the tobacco rod portion 11 is not particularly limited, but examples include 200 mg / rod portion or more and 800 mg / rod portion or less, and preferably 250 mg / rod portion or more and 600 mg / rod portion or less. This range is particularly suitable for a tobacco rod portion having a circumference of 22 mm and a length of 20 mm.

[0040] (Tobacco filler) (1) First tobacco filler First, the first tobacco filler (also simply referred to as the "first filler") will be described. The material of the tobacco shreds contained in the first filler is not particularly limited, and known materials such as laminar and midrib can be used. Also, dried tobacco leaves are 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 a homogenized product thereof (hereinafter also simply referred to as a homogenized sheet) may be shredded. Further, a homogenized sheet having a length similar to the longitudinal direction of the tobacco rod, shredded substantially horizontally with respect to the longitudinal direction of the tobacco rod, may be filled into the tobacco rod, which is a so-called strand type. Also, the width of the tobacco shreds is preferably 0.5 mm or more and 2.0 mm or less for filling into the tobacco rod.

[0041] Regarding the tobacco leaves used for producing the tobacco shreds and the homogenized sheet, various types of tobacco can be used. For example, yellow tobacco, Burley tobacco, Oriental tobacco, native tobacco, other Nicotiana tabacum varieties, Nicotiana rustica varieties, or mixtures thereof can be mentioned. For the mixture, each of the above varieties can be appropriately blended and used according to the desired taste. The details of the tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Comprehensive Research Center, March 31, 2009". Regarding the method for manufacturing the homogenized sheet, that is, the method of pulverizing tobacco leaves and processing them into a homogenized sheet, there are multiple conventional methods. The first is the method of producing a paper sheet using a papermaking process. The second is a method of mixing an appropriate solvent such as water with the pulverized tobacco leaves, homogenizing them, and then thinly casting the homogenized material on a metal plate or a metal plate belt and drying it to produce a cast sheet. The third is a method of mixing an appropriate solvent such as water with the pulverized tobacco leaves, homogenizing them, extruding and molding them into a sheet shape to produce a rolled sheet. The details of the types of the homogenized sheet are disclosed in "Tobacco Encyclopedia, Tobacco Comprehensive Research Center, March 31, 2009".

[0042] The moisture content of the tobacco filler can be 10% by weight or more and 15% by weight or less based on the total amount of the tobacco filler, and preferably 11% by weight or more and 13% by weight or less. With such a moisture content, the occurrence of bleeding is suppressed, and the winding suitability during the production of the tobacco rod is improved. There are no particular restrictions on the size of the tobacco shreds contained in the first tobacco filler and its preparation method. For example, dried tobacco leaves cut to a width of 0.5 mm or more and 2.0 mm or less may be used. Also, when using the pulverized material of the homogenized sheet, dried tobacco leaves pulverized and homogenized to an average particle size of about 20 to 200 μm may be sheet-processed and then cut to a width of 0.5 mm or more and 2.0 mm or less for use.

[0043] 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 extract substances from various 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, or a mixture thereof. The content of the aerosol base material in the first tobacco filler is not particularly limited. From the viewpoint of sufficiently generating aerosol and imparting a good flavor, it is usually 5% by weight or more, preferably 10% by weight or more, based on the total amount of the tobacco filler, and usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less.

[0044] The first tobacco filler may contain a flavor. The type of the flavor is not particularly limited. From the viewpoint of imparting a good flavor, acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, butyric acid a Myrrh, trans-Anethole, Star Anise Oil, Apple Juice, Peru Balsam Oil, Beeswax Absolute, Benzaldehyde, Benzoin Resinoid, Benzyl Alcohol, Benzyl Benzoate, Benzyl Phenylacetate, Benzyl Propionate, 2,3-Butanedione, 2-Butanol, Butyl Butyrate, Butyric Acid, Caramel, Cardamom Oil, Carob Absolute, β-Carotene, Carrot Juice, L-Carvone, β-Caryophyllene, Cassia Bark Oil, Ciderwood Oil, Celery Seed Oil, Chamomile Oil, Cinnamaldehyde, Cinnamic Acid, Cinnamyl Alcohol, Cinnamyl Cinnamate, Citronella Oil, DL-Citronellol, Clary Sage Extract, Cocoa, Coffee, Cognac Oil, Coriander Oil, Cuminaldehyde, Davana Oil, δ-Decalactone, γ-Decalactone, Decanoic Acid, Dill Herb Oil, 3,4-Dimethyl-1,2-cyclopentanedione, 4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-Dimethyl-6-octenoic Acid, 2,3-Dimethylpyrazine, 2,5-Dimethylpyrazine, 2,6-Dimethylpyrazine, Ethyl 2-Methylbutyrate, Ethyl Acetate, Ethyl Butyrate, Ethyl Hexanoate, Ethyl Isovalerate, Ethyl Lactate, Ethyl Laurate, Ethyl Levulinate, Ethyl Maltol, Ethyl Octanoate, Ethyl Oleate, Ethyl Palmitate, Ethyl Phenylacetate, Ethyl Propionate, Ethyl Stearate, Ethyl Valerate, Ethyl Vanillin, Ethyl Vanillin Glucoside, 2-Ethyl-3,(5 or 6)-dimethylpyrazine, 5-Ethyl-3-hydroxy-4-methyl-2(5H)-furanone, 2-Ethyl-3-methylpyrazine, Eucalyptol, Fenugreek Absolute, Genoa Absolute, Gentian Root Infusion, Geraniol, Geranyl Acetate, Grape Juice, Guaiacol, Guava Extract, γ-Heptalactone, γ-Hexalactone, Hexanoic Acid, cis-3-Hexen-1-ol, Hexyl Acetate, Hexyl Alcohol, Hexyl Phenylacetate, Honey, 4-Hydroxy-3-pentenoic Acid Lactone, 4-Hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5-Trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, β-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute, kola nut tincture, labdanum oil, lemon terpene-free oil, licorice extract, linalool, linalyl acetate, rosemary root oil, maltol, maple syrup, menthol, menthone, L-menthyl acetate, paramethoxybenzaldehyde, methyl-2-pyrrolyl ketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, tangerine, myristic acid, nerol, nerolidol, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, ω-pentadecalactone, peppermint oil, ptychopetalum olacoides oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenylguaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexen-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl)2-buten-4-one, 2,3,Examples include 5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), or ethyl-2-(p-menthane-3-carboxamido)acetate (WS-5), etc., and menthol is particularly preferred. These fragrances may be used alone or in combination of two or more. They may be used alone or in combination of two or more.

[0045] The content of the fragrance in the first tobacco filler is not particularly limited, and from the viewpoint of imparting a good flavor, it is usually 10,000 ppm or more, preferably 20,000 ppm or more, more preferably 25,000 ppm or more, and usually 70,000 ppm or less, preferably 50,000 ppm or less, more preferably 40,000 ppm or less, and even more preferably 33,000 ppm or less.

[0046] The filling density in the first tobacco filler is not particularly limited, but to ensure the performance of the first non-combustion heated tobacco and from the viewpoint of 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. The above-mentioned first tobacco filler is wound with a wrapper paper so as to be inside to form a tobacco rod portion 11.

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

[0048] As an aspect where the second tobacco filler is composed of a single tobacco sheet, for example, there is a filling aspect (so-called gather sheet) in which a tobacco sheet having one side with a length approximately the same as the longitudinal direction of the object to be filled is folded back horizontally a plurality of times in the longitudinal direction of the object to be filled. Also, there is an aspect in which a tobacco sheet having one side with a length approximately the same as 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.

[0049] As an aspect where the second tobacco filler is composed of two or more tobacco sheets, for example, there is an aspect in which a plurality of tobacco sheets having one side with a length approximately the same as the longitudinal direction of the object to be filled are filled in a state of being wound around in a direction orthogonal to the longitudinal direction of the object to be filled so as to be arranged concentrically. "Arranged concentrically" means that the centers of all the tobacco sheets are arranged such that they are at substantially the same position. Also, the number of tobacco sheets is not particularly limited, and examples of aspects include 2, 3, 4, 5, 6, or 7 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.

[0050] 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.

[0051] 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 to enhance the delivery efficiency of flavor components. 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 to each other, or preparing a laminate by lightly adhering the entire surface or a part of adjacent tobacco sheets so as to be peeled off after winding and forming. When preparing a tobacco rod including a wrapper, the above-mentioned wrapper may be disposed at the bottommost part of the laminate. Also, a fitting portion can be formed by 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.

[0052] The filling density of the second tobacco filler is not particularly limited. However, 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.

[0053] 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, or 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.

[0054] The tobacco sheet can be appropriately manufactured by known methods such as papermaking, slurry, or rolling. 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 under reduced pressure. 3) Add pulp to the residue, fibrillate it with a refiner, and then make paper. 4) Add the concentrated solution of the water extract to the paper 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 Publication 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 by irradiating the slurry mixture of water, pulp, a binder, and crushed tobacco leaves with ultraviolet rays or X-rays may be added.

[0055] In addition, as described in International Publication No. 2014 / 104078, a non-woven tobacco sheet manufactured 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 used as the raw material in each of the above methods can be the same as that described in the first filler. The composition of the tobacco sheet is not particularly limited. For example, the content of the tobacco raw material (tobacco leaves) is preferably 50% by weight or more and 95% by weight or less based on the total weight of the tobacco sheet. Further, the tobacco sheet may contain a binder. Examples of such binders include guar gum, xanthan gum, CMC (carboxymethyl cellulose), or CMC-Na (sodium salt of carboxymethyl cellulose). 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 each tobacco sheet may have different compositions or physical properties. 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 thickness of each tobacco sheet may be the same or different.

[0056] (3) Third tobacco filler The third tobacco filler is composed of tobacco granules. The raw material of the third tobacco filler is not particularly limited, and examples thereof include (a) a pulverized tobacco material, (b) moisture, (c) at least one pH adjuster selected from the group consisting of potassium carbonate and sodium hydrogen carbonate, and (d) at least one binder selected from the group consisting of pullulan and hydroxypropyl cellulose.

[0057] The pulverized tobacco material (component (a)) contained in the third tobacco filler includes pulverized tobacco leaves, pulverized tobacco sheets, etc. The types of tobacco include Burley, yellow, and Oriental. The tobacco material is preferably pulverized to a size of 200 μm or more and 300 μm or less. The raw material mixture of the third tobacco filler usually contains ground tobacco material in an amount of 20% by weight or more and 80% by weight or less.

[0058] The moisture (component (b)) contained in the third tobacco filler is for maintaining the integrity of tobacco granules. The raw material mixture of the third tobacco filler usually contains moisture in an amount of 3% by weight or more and 13% by weight or less. Also, the third tobacco filler may usually contain moisture in an amount such that the value of loss on drying is 5% by weight or more and 17% by weight or less. Loss on drying refers to the change in weight before and after complete drying of a sample by evaporating all the moisture in the sampled part of the sample (for example, when dried at a constant temperature (105 °C) for 15 minutes), specifically, the ratio (% by weight) of the sum of the amount of moisture contained in the sample and the amount of volatile components volatilized under the above drying conditions to the weight of the sample. That is, loss on drying (% by weight) can be expressed by the following formula. Loss on drying (% by weight) = { (weight of the sample before complete drying) - (weight of the sample after complete drying)} × 100 / weight of the sample before complete drying

[0059] The pH adjuster (component (c)) contained in the third tobacco filler consists of potassium carbonate, sodium bicarbonate or a mixture thereof. These pH adjusters adjust the pH of the third tobacco filler to the alkaline side, thereby promoting the release of flavor components contained in the third tobacco filler from tobacco granules and bringing a flavor satisfactory to users. The raw material mixture of the third tobacco filler may usually contain a pH adjuster in an amount of 5% by weight or more and 20% by weight or less.

[0060] The binder (component (d)) contained in the third tobacco filler binds tobacco granule components to maintain the integrity of tobacco granules. The binder is composed of pullulan, hydroxypropyl cellulose (HPC) or a mixture thereof. The raw material mixture of the third tobacco filler may usually contain a binder in an amount of 0.5% by weight or more and 15% by weight or less.

[0061] The third tobacco filler can consist of the above components (a), (b), (c) and (d), but can further include additional components. Examples of the additional component include an aerosol base material (component (e)). The aerosol base material generates aerosol smoke. The aerosol base material is composed of a polyhydric alcohol, and the polyhydric alcohol may include glycerin, propylene glycol, sorbitol, xylitol, or erythritol. These polyhydric alcohols can be used alone or in combination of two or more. When the raw material mixture of the third tobacco filler contains an aerosol base material, it can be contained in an amount of 5 to 15% by weight. Examples of the additional component also include flavoring materials (solid or liquid) other than the flavor component (f). Such flavoring materials include sugar (such as sucrose, fructose, etc.), cocoa powder, carob powder, coriander powder, licorice powder, orange peel powder, rose pip powder, chamomile flower powder, lemon verbena powder, peppermint powder, leaf powder, spearmint powder, black tea powder, or menthol, etc. These flavoring materials can be used alone or in combination of two or more. The raw material mixture of the third tobacco filler can usually contain the above flavoring materials in an amount of 0.5% by weight or more and 30% by weight or less. The above flavoring materials may be added to the above components by directly kneading with components (a), (b), (c), (d) and (e), or alternatively, may be added to the above components by preparing an inclusion compound by loading it on a known inclusion host compound such as cyclodextrin and then kneading it with the above components. When the third tobacco filler consists of the above components (a), (b), (c), (d) and (e), the raw material mixture of the third tobacco filler can usually contain component (a) in an amount of about 33% by weight or more (about 90% by weight or less).

[0062] The third tobacco filler is obtained by mixing components (a), (c) and (d) and optionally components (e), (f), adding component (b) to the mixture and kneading, granulating (into long columnar shapes) the obtained kneaded product with a wet extrusion granulator, and then sizing into short columnar or spherical shapes. The average particle size (D50) of the obtained tobacco granules is usually 0.2 mm or more and 1.2 mm or less, preferably 0.2 mm or more and 1.0 mm or less, and more preferably 0.2 mm or more and 0.8 mm or less. Upon extrusion granulation, it is preferable to extrude the kneaded product at a pressure of 2 kN or more at ambient temperature. By extrusion at this high pressure, the temperature of the kneaded product at the outlet of the extrusion granulator instantaneously and rapidly rises from ambient temperature to, for example, 90 to 100 °C, and 2% by weight or more and 4% by weight or less of water and volatile components evaporate. Therefore, the water used for formulating the kneaded product can be used in an amount that is greater than the desired moisture content in the final product, the tobacco granules, by the above evaporation amount.

[0063] The tobacco granules obtained by extrusion granulation may be further dried as necessary for moisture adjustment. For example, if the loss on drying of the tobacco granules obtained by extrusion granulation is measured and it is higher than the desired loss on drying (for example, 5% by weight or more and 17% by weight or less), the tobacco granules may be further dried to obtain the desired loss on drying. The drying conditions (temperature and time) for obtaining the desired loss on drying can be determined in advance as the drying conditions (temperature and time) necessary for reducing the loss on drying by a predetermined value, and set based on those conditions.

[0064] The third tobacco filler can consist only of the above tobacco granules, but may additionally contain other tobacco materials. The additional tobacco materials are usually cuttings or fine powders of tobacco leaves. The additional tobacco materials can be used by mixing with the tobacco granules.

[0065] (Wrapping paper) The structure of the cigarette paper 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 co-papermaking with non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and esparto, which are generally used for cigarette paper for tobacco products. As the types of pulp, chemical pulp such as kraft sulfate pulping method, acidic / neutral / alkali sulfite pulping method, soda salt pulping method, ground pulp, chemiground pulp, thermomechanical pulp, etc. can be used.

[0066] Using the above pulp, in the papermaking process by a fourdrinier paper machine, a cylinder paper machine, a cylinder and short combined paper machine, etc., the formation is adjusted and made uniform to produce cigarette paper. In addition, 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, internal additives for papermaking such as sulfuric acid bands, various anionic, cationic, nonionic, or amphoteric yield improvers, drainage improvers, and paper strength enhancers, as well as additives for papermaking such as dyes, pH adjusters, defoamers, pitch control agents, and slime control agents can be added.

[0067] 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, 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, 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 mm to 70 mm, the length of another side can be 15 mm to 28 mm, the preferred length of another side can be 22 mm 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 gluing them, a cylindrical paper tube shape is formed, and a shape in which the tobacco filler is filled therein is formed. The size of the rectangular wrapper can be determined by the size of the completed tobacco rod part 11. In the case of a material 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 mm to 60 mm, and the length of another side can be 15 mm to 28 mm.

[0068] 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.

[0069] 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 agent (WS agent) and a sizing agent. Examples of the wet strength agent include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), etc. Examples of the sizing agent include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), 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, polyvinyl alcohol, etc. can be mentioned. In particular, it is known that the air permeability is improved by using a very small amount of oxidized starch (Japanese Patent Application Laid-Open No. 2017-218699). Also, the toilet paper may be appropriately coated.

[0070] 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 preferable. Examples thereof include alginic acid and its salts (for example, sodium salt), polysaccharides such as pectin, ethyl cellulose, methyl cellulose, carboxymethyl cellulose, cellulose derivatives such as nitrocellulose, starch and its derivatives (for example, ether derivatives such as carboxymethyl starch, hydroxyalkyl starch and cationic starch, ester derivatives such as acetic starch, phosphoric starch and octenyl succinic anhydride starch).

[0071] [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 and 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, and esparto. These pulps may be used alone or in combination of multiple types in 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 such as kraft digestion method, acidic / neutral / alkali sulfite digestion method, soda salt digestion method, ground pulp, chemiground pulp, thermomechanical pulp, etc. can be used. Note that the chip paper 15 may be manufactured by the manufacturing method described later or may use commercially available products. The shape of the chip paper 15 is not particularly limited and can be, for example, square or rectangular.

[0072] 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, 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, the flow rate (cm 2 of the gas passing through an area of 1 cm per minute 3 ). 1 Coresta unit (1 Coresta unit, 1 C.U.) is cm 3 / (min·cm 2 ) under 1 kPa.

[0073] In addition to the above pulp, the chip paper 15 may contain fillers, for example, 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 preferably included calcium carbonate from the viewpoints of improving whiteness and opacity and increasing the heating rate. Further, these fillers may be used alone or in combination of two or more kinds.

[0074] In addition to the above pulp and fillers, various auxiliaries may be added to the chip paper 15. For example, in order to improve the water resistance, it may have a water resistance improver. The water resistance improver includes wet paper strength enhancer (WS agent) and 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), highly saponified polyvinyl alcohol with a saponification degree of 90% or more, etc.

[0075] 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.

[0076] The configuration of the non-combustion heating type tobacco according to this embodiment can be used for an electrically heated tobacco product described later, but can also be applied to cigarettes (rolled tobacco) accompanied by combustion.

[0077] [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 known methods can be applied. For example, it can be manufactured by winding up the tobacco rod part and the mouthpiece part with chip paper.

[0078] <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 includes an electric heating 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. 3, or an aspect of heating from the inside of the tobacco rod portion 11 in the non-combustion heated tobacco 10 as shown in FIG. 4. Although the electric heating device 20 shown in FIGS. 3 and 4 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. 4. Regarding the non-combustion heated tobacco 10 in FIGS. 3 and 4, some of the reference numerals representing the respective configurations shown in FIGS. 1 and 2 are omitted. The electrically heated tobacco product 30 is used by being inserted into the heater member 21 disposed inside the electric heating device 20 so that the non-combustion heated tobacco 10 described above comes into contact therewith. The electric heating device 20 has a battery unit 22 and a control unit 23, for example, inside a resin housing 24. When the non-combustion heated tobacco 10 is inserted into the electric heating device 20, the outer peripheral surface of the tobacco rod portion 11 comes into contact with the heater member 21 of the electric heating 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 electric heating device 20 generates heat under the control of the control unit 23. The heat is transmitted to the tobacco rod portion 11 of the non-combustion heated tobacco 10, so that aerosol base materials, flavor components, etc. contained in the tobacco filling of the tobacco rod portion 11 volatilize.

[0079] 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 include heaters containing 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 include heaters having a resistance circuit on a flat base material with the portion having the resistance circuit being the 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 include heaters having a resistance circuit on the outer peripheral surface of a cylinder made of metal or the like with the portion having the resistance circuit being the 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 the portion having the resistance circuit is the heat-generating part. The cross-sectional shape of the cylindrical heater may be circular, elliptical, polygonal, rounded polygonal, or the like. In the case of heating the outer peripheral surface of the non-combustion heated cigarette 10 as shown in FIG. 3, the above-mentioned sheet heater, flat heater, and cylindrical heater can be used. On the other hand, in the case of heating from inside the tobacco rod portion 11 of the non-combustion heated cigarette 10 as shown in FIG. 4, 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 with the length of the tobacco rod portion 11 in the major axis direction being L mm, it can be within the range of L ± 5.0 mm. From the perspective of aerosol delivery, that is, to sufficiently transfer heat to the tobacco rod portion 11 and sufficiently volatilize 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 and the like, 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.

[0080] The heating intensity such as the heating time and heating temperature of the non-combustion heated tobacco 10 by the heater member 21 can be set in advance for each electric heating type tobacco product 30. For example, after inserting the non-combustion heated tobacco 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 tobacco 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 and the like. 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. The vapor containing components derived from the aerosol base material and components derived from flavor components generated from the tobacco rod portion 11 by heating with the heater member 21 reaches the user's oral cavity through the mouthpiece portion 14 composed of the cooling segment 12, the filter segment 13, and the like.

[0081] The opening V provided in the cooling segment 12 is preferably present on the suction port end side rather than the end portion on the suction port end side of the region in the cooling segment 12 that contacts the electric heating device 20 (the portion indicated by the arrow X in the figure), as shown in FIG. 5, 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 tobacco 10 of the electric heating device 20 may be tapered as shown in FIG. 6 in order to facilitate the insertion of the non-combustion heated tobacco 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. Note that for the non-combustion heated tobacco 10 in FIGS. 5 and 6, some of the reference numerals representing the respective configurations shown in FIGS. 1 to 4 are omitted.

Example

[0082] The present invention will be further specifically described by way of examples. However, the present invention is not limited to the descriptions of the following examples as long as it does not deviate from the gist thereof.

[0083] <Manufacture of Non - Combustion Heated Tobacco> [Example 1] As a tobacco filler, menthol 7 mg / cigarette (7 mg per non - combustion heated cigarette finally obtained), glycerin 15 g / 100 g, and propylene glycol 4 g / 100 g were premixed in the shreds of sheet tobacco. Using a high - speed winding machine, the tobacco filler was wound up with rolling paper (manufactured by Nippon Paper Papiria, basis weight 35 g / m , thickness 52 μm). 2 The weight per cut was 0.8 g, the rolling circumference was 22 mm, and the rolling length was 68 mm. The rolled 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, a filter segment composed of the tobacco rod part, a paper tube (cooling segment) with a length of 20 mm, a center - hole filter having a through - hole with a length of 12 mm (diameter 4.5 mm), and a filter filled with 8 - mm - long cellulose acetate fibers was wound with the chip paper prepared above to produce a non - combustion heated tobacco without apertures. Then, 17 holes were drilled concentrically in the circumferential direction of the cooling segment at a position 5.5 mm in the direction of the cooling segment side (25.5 mm from the suction end of the non - combustion heated tobacco) from the boundary between the cooling segment and the filter segment so as to penetrate both the chip paper and the cooling segment, thereby providing apertures and producing the non - combustion heated tobacco of Example 1. ​Note that the diameter of the aperture was adjusted so that the air inflow ratio from the aperture was 72% by volume when suction was performed at 17.5 ml / second using a single-port automatic smoking machine manufactured by Borgwaldt. This air inflow ratio was measured by a method compliant with ISO9512. In all the examples and comparative examples described later, the diameter of the aperture was adjusted so that the air inflow ratio was 72% by volume.

[0084] [Example 2] A method similar to that of Example 1 was applied, except that the target for adding menthol was changed from the notch of the sheet tobacco to the filter segment, to produce the non-combustion heated tobacco of Example 2.

[0085] [Comparative Example 1] A method similar to that of Example 1 was applied, except that the position where the aperture was provided was changed from the boundary between the cooling segment and the filter segment to a position 2 mm in the direction of the cooling segment side (22 mm from the suction port end of the non-combustion heated tobacco), to produce the non-combustion heated tobacco of Comparative Example 1.

[0086] [Comparative Example 2] A method similar to that of Comparative Example 1 was applied, except that the target for adding menthol was changed from the notch of the sheet tobacco to the filter segment, to produce the non-combustion heated tobacco of Comparative Example 2.

[0087] <Evaluation of Delivery Amount> Each of the non-combustion heated tobaccos produced in Examples 1 and 2 and Comparative Examples 1 and 2 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 the Canadian Intense Regime (CIR). An electric heating device that heats the periphery was used, and after inserting a non-combustion heated tobacco, the heater temperature was raised to 295°C within 21 seconds, lowered to 260°C within 5 seconds, and maintained at 260°C until the end of the evaluation (about 330 seconds). After this, the smoking test was performed using a Borgwaldt single-puff automatic smoking machine under the conditions of a flow rate of 55cc / 2 seconds and a smoking interval of 30 seconds. At this time, the opening in the cooling segment was set to be 25.5 mm from the end of the mouth end side of the area where the non-combustion heated tobacco and the electric heating device contact. The mainstream smoke generated in the smoking test was collected on a Cambridge pad, and after 12 puffs, the Cambridge pad was removed and extracted with 10 ml of ethanol, and the amount of each component in the mainstream smoke collected at each puff was measured using GC-MS. The amounts of menthol, nicotine, propylene glycol, and glycerin in the mainstream smoke obtained from the above measurements for the non-combustion heated tobacco products of Examples 1 and 2 and Comparative Examples 1 and 2 are shown in Tables 1 and 2 below, and Figures 7 to 10.

[0088] [Table 1]

[0089] [Table 2]

[0090] From Tables 1 and 2 and Figures 7 to 10, the cooling segment and the filter segment It was found that the non-combustion heat-not-burn cigarettes of Examples 1 and 2, in which the apertures were located 5.5 mm from the boundary toward the cooling segment, delivered greater amounts of nicotine, propylene glycol, and glycerin than the non-combustion heat-not-burn cigarettes of Comparative Examples 1 and 2, in which the apertures were located 2 mm toward the cooling segment. In addition, when menthol was added to the filter, it was confirmed that the difference in the aperture position improved the delivery.

[0091] From the above experimental results, it can be seen that the present invention can provide a non-combustion heating type tobacco and an electric heating type tobacco product with improved delivery of components generated by heating.

Explanation of reference numerals

[0092] 10 Non-combustion heating type tobacco 11 Tobacco rod part 12 Cooling segment 13 Filter segment 14 Mouthpiece part 15 Chip paper V aperture 20 Electric heating device 21 Heater member 22 Battery unit 23 Control unit 24 Housing 30 Electric heating type 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 a cooling segment having openings concentrically arranged in a circumferential direction; a filter segment including a filter medium; Including, the cooling segment is disposed between the tobacco rod portion and the filter segment in the axial direction of the non-combustion heat-not-burn tobacco; and the openings are present in a region of 4 mm to 15 mm from the boundary between the cooling segment and the filter segment toward the cooling segment. Non-combustible heated tobacco.

2. A rod-shaped non-combustible heated tobacco product comprising a tobacco rod portion and a mouthpiece portion, The mouthpiece portion a cooling segment having openings concentrically arranged in a circumferential direction; a filter segment including a filter medium; Including, the cooling segment is disposed between the tobacco rod portion and the filter segment in the axial direction of the non-combustion heat-not-burn tobacco; and the openings are present in a region extending from the boundary between the cooling segment and the tobacco rod portion to a position 5 mm or more toward the cooling segment; Non-combustible heated tobacco.

3. The opening is present in an area of ​​4 mm or more in the direction toward the cooling segment from the boundary between the cooling segment and the filter segment. The non-combustion heated tobacco product according to claim 2.

4. The cooling segment has a rod-shaped member having a cavity with a hollow circumferential cross section. The tobacco product according to any one of claims 1 to 3, wherein the tobacco product is a non-combustion heating tobacco product.

5. The opening is located closer to the mouth end than the end of the electrically heated device that can heat the non-combustion heated tobacco. The tobacco product according to any one of claims 1 to 4, wherein the tobacco product is a non-combustion heating product.

6. The opening is present in an area of ​​24 mm or more from the mouth end of the non-combustion heated tobacco toward the cooling segment. The tobacco product according to any one of claims 1 to 5, wherein the tobacco product is a non-combustion heating product.

7. The opening is present in an area of ​​5 mm or more in the direction of the cooling segment from the boundary between the cooling segment and the tobacco rod portion. The tobacco product according to any one of claims 1 to 6, wherein the tobacco product is a non-combustion heating product.

8. The filter segment further comprises a fragrance. The tobacco product according to any one of claims 1 to 7, wherein the tobacco product is a non-combustion heating product.

9. An electric heating device comprising a heater element, a battery unit serving as a power source for the heater element, and a control unit for controlling the heater element; The non-combustion heating tobacco product according to any one of claims 1 to 8, which is inserted so as to contact the heater member; An electrically heated tobacco product comprising:

10. In the cooling segment, the opening is located closer to the suction end than the end of the suction end of the region that contacts the electrically heated device.

10. The electrically heated tobacco product according to claim 9.

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