Aerosol-generating article

Abstract

Provided is an aerosol-generating article including an aerosol-generating segment, a mouthpiece segment, and an intermediate segment between the aerosol-generating segment and the mouthpiece segment. The intermediate segment has at least one paper tube disposed in contact with a downstream end of the aerosol-generating segment in a longitudinal direction. The paper tube has a delivery additive therein.

Description

Aerosol products

[0001] This invention relates to aerosol products.

[0002] A common example of a non-combustible aerosol product is one comprising a base portion containing an aerosol source and a cooling portion that generates an aerosol by cooling the vapor produced when the base portion is heated, wherein the cooling portion has openings for taking in air from the outside. Furthermore, in such an aerosol product, a material for flavoring the aerosol is arranged inside the cooling portion on the downstream side in the longitudinal direction (Patent Document 1).

[0003] International Publication No. 2023 / 100295

[0004] When using aerosol products, users inhale (puff) multiple times, but there is a problem that the amount of aerosol and flavor components delivered decreases as the number of puffs increases. Patent Document 1 describes an aerosol product having the above-described configuration, but there is room for improvement regarding the amount of aerosol and flavor components delivered as the number of puffs increases.

[0005] The present inventors conducted diligent studies to solve the above problems and found that an aerosol product comprising an aerosol generating segment, a mouthpiece segment, and an intermediate segment between the aerosol generating segment and the mouthpiece segment, wherein the intermediate segment has at least one paper tube positioned in contact with the downstream end of the aerosol generating segment in the longitudinal direction, and the paper tube has a delivery additive inside, can solve the above problems, and thus completed the present invention. In other words, the gist of the present invention is as follows.

[0006] [1] An aerosol product comprising an aerosol generating segment, a mouthpiece segment, and an intermediate segment between the aerosol generating segment and the mouthpiece segment, wherein the intermediate segment has at least one paper tube positioned in contact with the downstream end of the aerosol generating segment in the longitudinal direction, and the paper tube has a delivery additive inside. [2] The aerosol product according to [1], wherein the paper tube has a first region having a delivery additive and a second region not having a delivery additive, and the first region is located upstream in the longitudinal direction from the second region. [3] The aerosol product according to [2], wherein the outer surface of the paper tube corresponding to the first region is heated to 150°C or higher when in use. [4] The aerosol product according to [2] or [3], wherein the first region is a region from 1 mm to 10 mm, preferably 2 mm to 9 mm, more preferably 3 mm to 8 mm, and even more preferably 4 mm to 7 mm from the upstream end of the paper tube in the longitudinal direction. [5] The aerosol product according to any one of [2] to [4], wherein there is an opening in the portion of the paper tube corresponding to the second region. [6] The aerosol product according to any one of [1] to [5], wherein the delivery additive is applied to the inner surface of the paper tube. [7] The aerosol product according to any one of [1] to [6], wherein the paper tube has a plurality of layers in its thickness direction, and the air permeability of the paper constituting the layer facing the hollow of the paper tube is 0 cholesterol units. [8] The paper tube has a plurality of layers in its thickness direction, and the density of the paper constituting the layer facing the hollow of the paper tube is 0.6 to 1.5 g / cm³. ３ Preferably 0.7 to 1.3 g / cm³ ３ More preferably 0.8 to 1.2 g / cm³ ３The aerosol product according to any one of [1] to [7]. [9] The aerosol product according to any one of [1] to [8], wherein the paper tube has a plurality of layers in the thickness direction, and the basis weight of the paper constituting the layer facing the hollow of the paper tube is 50 to 200 gsm, preferably 70 to 150 gsm, more preferably 80 to 120 gsm.

[10] The aerosol product according to any one of [1] to [6], wherein the paper tube has a plurality of layers in the thickness direction, and the paper constituting the layer facing the hollow of the paper tube is paper with an air permeability of 500 cholesta units or more, preferably 3000 cholesta units or more, and more preferably 10000 cholesta units or more.

[11] The paper tube has a plurality of layers in the thickness direction, and the paper constituting the layer facing the hollow of the paper tube has a density of 0.6 g / cm³. ３ Less than 0.5 g / cm³, preferably 0.5 g / cm³ ３ More preferably, 0.4 g / cm³ ３ The aerosol product according to any one of [1] to [7] below.

[12] The aerosol product according to any one of [1] to [8], wherein the paper tube has a plurality of layers in the thickness direction, and the paper constituting the layer facing the hollow of the paper tube is paper with a basis weight of less than 50 gsm, preferably 40 gsm or less, and more preferably 30 gsm or less.

[13] The aerosol product according to any one of [1] to

[12] , wherein the paper tube has a liquid impermeable layer and a delivery additive on its inner surface, and the delivery additive is applied to the liquid impermeable layer.

[14] The aerosol product according to any one of [1] to

[13] , wherein the paper tube has a plurality of layers in the thickness direction, and the delivery additive is applied to the layer facing the hollow of the paper tube.

[15] The aerosol product according to any one of [1] to

[14] , wherein the paper tube has a plurality of layers in its thickness direction, and at least one of the layers located on the outer periphery side of the layers facing the hollow of the paper tube is made of paper with a cholesterol unit of 0 air permeability.

[16] The paper tube has a plurality of layers in its thickness direction, and at least one of the layers located on the outer periphery side of the layers facing the hollow of the paper tube is made of 0.6 to 1.5 g / m ３ Preferably 0.7 to 1.3 g / m ３, more preferably 0.8 to 1.2 g / m ３The aerosol product according to any one of [1] to

[15] , comprising paper having a density of .

[17] The aerosol product according to any one of [1] to

[16] , wherein the paper tube has a plurality of layers in its thickness direction, and at least one layer of the layers located on the outer periphery side of the layer facing the hollow of the paper tube is composed of paper having a basis weight of 50 to 200 gsm, preferably 70 to 150 gsm, and more preferably 80 to 120 gsm.

[18] The aerosol product according to any one of [1] to

[17] , wherein the total basis weight of the paper constituting the paper tube is 100 to 1000 gsm, preferably 120 to 400 gsm, more preferably 130 to 300 gsm, and particularly preferably 150 to 200 gsm.

[19] The aerosol product according to any one of [1] to

[18] , wherein the paper tube is composed of two paper tubes, an upstream paper tube in the longitudinal direction and a downstream paper tube in the longitudinal direction, the upstream paper tube in the longitudinal direction corresponds to a first region and the downstream paper tube in the longitudinal direction corresponds to a second region.

[20] The aerosol product according to any one of [1] to

[19] , wherein the paper tube has a first region having a delivery additive and a second region not having a delivery additive, the first region is located upstream in the longitudinal direction of the second region, and the delivery additive arranged in the first region is one or more solids.

[21] The aerosol product according to

[20] , wherein the proportion of the solid delivery additive in the volume of the hollow portion of the paper tube is 1 to 70 volume%, preferably 5 to 30 volume%.

[22] The aerosol product according to

[21] or

[21] , wherein the solid delivery additive is a substantially spherical capsule with a diameter of 0.5 to 3 mm, preferably 1 to 2.5 mm, or a thread with a width of 0.5 to 1.5 mm.

[23] The aerosol product according to any one of [1] to

[22] , wherein the aerosol generating segment and the intermediate segment are wound on the same tip paper, and the tip paper covers at least the entire circumference of the aerosol generating segment.

[24] The aerosol product according to any one of [1] to

[23] , further comprising a tip segment, wherein the tip segment, aerosol generating segment and intermediate segment are arranged in this order from the upstream side in the longitudinal axis direction and are wound on the same tip paper.

[25] A non-combustion aerosol generation system comprising an aerosol product according to any one of [1] to

[24] and a device into which the aerosol product is inserted, wherein the device has a heater for heating the aerosol product from its outer circumference, and the heater is arranged to at least partially heat the aerosol generation segment and the intermediate segment.

[26] The non-combustion aerosol generation system according to

[25] , wherein the heater extends to a position 1 to 10 mm, preferably 2 to 5 mm, more preferably 2 to 3 mm from the upstream end in the longitudinal direction of the intermediate segment of the aerosol product.

[27] A non-combustion aerosol generating system according to

[25] or

[26] , wherein the paper tube has a first region having a delivery additive and a second region not having a delivery additive, the first region being located upstream in the longitudinal direction of the second region, the device having a metal tube for fitting the aerosol product, the heater being arranged on the outer circumference of the metal tube, and when the aerosol product is fitted into the metal tube, the downstream end of the metal tube in the longitudinal direction of the aerosol product is located in the range of -2 to 2 mm, preferably -1 to 1 mm, from the downstream end in the longitudinal direction of the first region of the intermediate segment of the aerosol product.

[0007] According to the present invention, it is possible to provide an aerosol product in which the decrease in the amount of aerosol and flavor components delivered that occurs as the number of puffs increases during use of the aerosol product is suppressed.

[0008] This is a schematic diagram showing a first example of the configuration of an aerosol product according to an embodiment of the present invention. This is a schematic diagram showing a second example of the configuration of an aerosol product according to an embodiment of the present invention. This is a schematic diagram showing an example of the configuration of an intermediate segment of an aerosol product according to an embodiment of the present invention. This is a schematic diagram showing an example of applying a delivery additive to the paper tube of the intermediate segment of an aerosol product according to an embodiment of the present invention. This is a schematic diagram of a non-combustion type flavor generating system according to an embodiment of the present invention. This is a diagram showing the results of a smoking test conducted using an aerosol product according to an embodiment of the present invention and a control aerosol product. This is a diagram showing the results of a smoking test conducted using an aerosol product according to an embodiment of the present invention and an aerosol product corresponding to a comparative example.

[0009] The embodiments of the present invention will be described in detail below, but these descriptions are examples (representative examples) of embodiments of the present invention, and the present invention is not limited to these contents unless it exceeds the gist of the invention. In this specification, numerical ranges expressed using "~" mean a range that includes the numbers written before and after "~" as the lower and upper limits, and "A~B" means A or more and B or less. In this specification, the expression "A or B" may be read as "at least one selected from the group consisting of A and B". In this specification, multiple embodiments will be described, and various conditions in each embodiment can be applied to each other to the extent that they are applicable. In addition, in some figures in the drawings, the X, Y, and Z directions are shown, but the left-right direction is the X direction, the up-down direction is the Y direction, and the depth direction is the Z direction, while the left-right direction is the X direction, the up-down direction is the Y direction, and the depth direction is the Z direction, while the right-left direction is the X direction, the up-down direction is the Y direction, and the depth direction is the Z direction, while the right-left direction is the Y direction, and the down-down direction is the Z direction, while the down-down direction is the Z direction, while the left-right direction is the Y direction, and the down-down direction is the Z direction, while the down-down direction is the Z direction, while the right-left direction is the Y direction, and the down-down direction is the Z direction, while the down-down direction is the Z direction, while the up-down direction is the Y direction. In addition, in some figures in the drawings the elements of the non-combustible aerosol generation system are not limited to being arranged in the directions shown in the drawings. In typical use, the Z-direction shown in the figure corresponds to the long axis of the aerosol product. Furthermore, "upstream" in the following context refers to the "upstream" direction in which air flows during normal use of the aerosol product, and "downstream" refers to the "downstream" direction in which air flows.

[0010] The aerosol product according to this embodiment will be described below with reference to the figures, but this embodiment is not limited to this form. In this specification, figures may be used to describe each embodiment, but the descriptions of each embodiment and the dimensions, materials, shapes, and relative positions of the components shown in the figures are examples only.

[0011] <Aerosol Product> An aerosol product according to one embodiment of the present invention is an aerosol product comprising a specific intermediate segment described later. As an example of an aerosol product, it comprises an aerosol generating segment, a mouthpiece segment, and an intermediate segment between the aerosol generating segment and the mouthpiece segment. The intermediate segment has at least one paper tube that is positioned in contact with the downstream end of the aerosol generating segment in the longitudinal direction, and the paper tube has a delivery additive inside. With this configuration, the decrease in the amount of aerosol and flavor components delivered that occurs as the number of puffs increases when using the aerosol product is suppressed. Because the paper tube is positioned in contact with the downstream end of the aerosol generating segment in the longitudinal direction, the heat applied when the aerosol generating segment is heated is transmitted to the upstream side of the paper tube in the longitudinal direction. As a result, the delivery additive present inside the paper tube is also heated. Then, because the delivery additive is heated, the decrease in the amount of aerosol and flavor components delivered is suppressed even when the number of puffs increases. On the other hand, if the delivery additive is placed only in the aerosol-generating segment of the aerosol product, the aerosol-generating segment is heated strongly, making it difficult to suppress the decrease in aerosol and flavor component delivery that occurs with an increase in the number of puffs. Also, if the delivery additive is placed only in the mouthpiece segment, it may only be possible to deliver flavor components with low volatilization temperatures. In contrast, the upstream portion of the paper tube along its long axis is heated to a lower temperature than the aerosol-generating segment but to a higher temperature than the mouthpiece segment. Therefore, by placing the delivery additive in this portion, it is easier to suppress the decrease in the amount of aerosol and flavor component delivered that occurs with an increase in the number of puffs.

[0012] Details of each segment of the aerosol product will be described later. The mouthpiece segment includes a filter as a component. The usage of the aerosol product according to this embodiment is not particularly limited, and the aerosol product may be an electrically heated aerosol product, a non-combustible aerosol product, or a cigarette (paper-wrapped cigarette). An example of the aerosol product 100 according to this embodiment is a substantially cylindrical rod. In the example shown in Figures 1 and 2, the aerosol product 100 includes an aerosol generating segment 110, an intermediate segment 120, a mouthpiece segment 130, and a tip paper 140 that integrally connects them. The intermediate segment 120 and the mouthpiece segment 130 are connected coaxially with the aerosol generating segment 110 by being wound together with the aerosol generating segment 110 by the tip paper 140.

[0013] Reference numeral 101 denotes the mouthpiece end of the aerosol product 100 (mouthpiece segment 130). Reference numeral 102 denotes the tip of the aerosol product 100 opposite to the mouthpiece end 101. The aerosol generating segment 110 is located on the tip 102 side of the aerosol product 100. In the example shown in Figures 1 and 2, the aerosol product 100 has a substantially constant diameter along its entire length in the longitudinal direction (hereinafter also referred to as the longitudinal axis direction or Z direction) from the mouthpiece end 101 to the tip 102.

[0014] The composition of the aerosol product 100 is not particularly limited and can be in a general form. In the embodiment shown in Figure 1, the aerosol generating segment 110, the intermediate segment 120, and the mouthpiece segment 130 are each shown as single segments, but each part may be composed of one or more segments. The length h in the longitudinal direction of the aerosol product 100 is not particularly limited, for example, it is usually 40 mm or more, and more preferably 100 mm or less. The diameter d of the aerosol product 100 is not particularly limited, for example, it is usually 5 mm or more, and more preferably 8 mm or less.

[0015] The airflow resistance in the longitudinal direction per aerosol product 100 is not particularly limited, but from the viewpoint of ease of inhalation, it is usually 10 mmH ２ It is 0 or greater, and 20 mmH ２ Preferably, it is 0 or higher, and 30 mmH ２ It is more preferable that the temperature is 0 or higher, and usually 200 mmH ２ It is less than or equal to 0 and 100 mmH ２ Preferably, it should be 0 or less, and 60 mmH ２ It is more preferable that the value be 0 or less. The air permeability resistance is measured according to the ISO standard method (ISO 6565:2015), for example, using a filter air permeability resistance meter manufactured by Cerulean Chemical Industries. The air permeability resistance refers to the pressure difference between the first end face and the second end face when air is flowed from one end face (first end face) to the other end face (second end face) at a predetermined airflow rate (17.5 cc / sec) while air does not permeate the sides of the aerosol product 100. The unit is generally mmH ２ This is represented by O. The relationship between airflow resistance and the aerosol product 100 is known to be proportional within the commonly used length range (length 5 mm to 200 mm), and if the length of the aerosol product 100 doubles, its airflow resistance also doubles. The same applies to the airflow resistance described below.

[0016] The cross-sectional shape of the aerosol product 100 is not particularly limited and may be polygonal, rounded polygonal, circular, or elliptical. In this specification, "cross-section" refers to the surface extending in the X-axis and Y-axis directions of Figure 1. The length of the aerosol product 100 in the longitudinal direction is not particularly limited, for example, it is usually 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more. It is also usually 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less. The width (diameter if the cross-sectional shape is circular) of the tip 102 of the aerosol product 100 is not particularly limited, for example, it is usually 5 mm or more, preferably 5.5 mm or more. It is also usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less.

[0017] <Intermediate Segment> The aerosol product 100 has an intermediate segment 120. The intermediate segment 120 may have a function of cooling the vapor generated by heating the aerosol generation segment, and may be, for example, a paper tube made by processing cardboard into a cylindrical shape, with a hollow inside the cylinder. The vapor containing the aerosol base material and tobacco flavor components comes into contact with the air inside the cavity and is cooled. One embodiment of the intermediate segment 120 is a paper tube 121 made by processing a single sheet of paper or multiple sheets of paper glued together into a cylindrical shape. The wall thickness (paper thickness) of the paper tube 121 constituting the intermediate segment may be 50 to 2000 μm, preferably 100 to 1500 μm, and more preferably 200 μm to 1500 μm. As will be described later, even when the paper tube 121 is composed of multiple layers, it is preferable that the total thickness is within the above range. The length in the longitudinal direction of the intermediate segment 120 is not particularly limited, but is usually 10 mm or more, preferably 15 mm or more, and usually 40 mm or less, preferably 35 mm or less, and more preferably 30 mm or less. The length in the longitudinal direction of the intermediate segment 120 is particularly preferably 20 mm. By setting the length in the longitudinal direction of the intermediate segment 120 to be above the lower limit above, sufficient cooling effect can be ensured and good flavor can be obtained. Furthermore, by setting the length in the longitudinal direction of the intermediate segment 120 to be below the upper limit above, losses caused by steam and aerosols generated during use adhering to the inner wall of the paper tube 121 constituting the intermediate segment 120 can be suppressed. The cross-sectional shape of the paper tube 121 constituting the intermediate segment 120 is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product, but is usually 4.0 mm or more and 9.0 mm or less, preferably 4.5 mm or more and 8.5 mm or less, and more preferably 5.0 mm or more and 8.0 mm or less.

[0018] To increase the cooling effect by bringing ambient air at room temperature into contact with high-temperature steam, it is preferable that there are openings around the paper tube or the like for introducing ambient air. The intermediate segment 120 is provided with openings 103 for taking in air from the outside. The number of openings 103 in the intermediate segment 120 is not particularly limited.

[0019] For example, as shown in Fig. 2, the paper tube may be composed of a first region 120a and a second region 120b. In Fig. 2, the first region is located upstream in the major axis direction from the second region. A preferred embodiment is that the first region 120a of the paper tube has a delivery additive, and the second region 120b does not have a delivery additive. Since the first region 120a of the paper tube is adjacent to the aerosol generation segment, it becomes hotter than the second region 120b. Therefore, in this embodiment, the delivery additive disposed in the paper tube of the first region 120a is appropriately heated, contributing to suppressing the reduction in the delivery amount accompanying the increase in the puff number. Further, during the use of the aerosol generating article 100, the aerosol generation segment 110 is heated, but as described above, heat is also transmitted to a part of the intermediate segment 120. And during this use, the outer peripheral surface of the part corresponding to the first region constituting the intermediate segment 120 is preferably heated to 150°C or higher. When the outer peripheral surface of the part corresponding to the first region is heated to 150°C or higher, the delivery additive disposed in the paper tube of that part is gradually delivered, thereby suppressing the rapid decrease in the delivery of the aerosol and the flavor component as the puff increases. Note that from the viewpoint of preventing deterioration due to heat of the chip paper or the like covering the outer peripheral surface, the outer peripheral surface of the part corresponding to the first region is preferably heated to 400°C or lower, and more preferably heated to 250°C or lower.

[0020] The first region 120a is the portion of the intermediate segment 120 that is in contact with the aerosol generation segment 110, and its longitudinal range is preferably 1 mm to 10 mm from the upstream end in the longitudinal direction, more preferably 2 mm to 9 mm, even more preferably 3 mm to 8 mm, and particularly preferably 4 mm to 7 mm. The region from X to Y mm from the upstream end in the longitudinal direction means that the downstream end of the ventilation of the first region 120a is located in the range of X to Y mm, starting from the upstream end. Because the downstream end of the longitudinal direction of the first region 120a is located in the above range, the heat associated with the heating of the aerosol generation segment is also transferred to the first region, so that the delivery additive is sufficiently heated. On the other hand, as shown in Figure 2, it is preferable that an opening 103 is provided in the second region 120b of the paper tube constituting the intermediate segment 120. When an opening 103 is provided in the second region 120b of the intermediate segment, the delivery of aerosols and flavor components from the first region 120a is not hindered, and their cooling is also possible. Furthermore, it offers good suitability for manufacturing.

[0021] As shown in Figure 3(a), it is preferable that the delivery additive 200 is applied to the inner surface of the paper tube 121 constituting the intermediate segment 120. Methods of application include, for example, coating, impregnation, application of a sheet member to which the delivery additive has been applied, and addition of capsules (which may be microcapsules) containing the delivery additive 200. Among these, application by coating is preferred.

[0022] The paper tube forming the intermediate segment 120 may be composed of a plurality of layers in its thickness direction, for example, as shown in FIGS. 3(a) to 3(d). In the examples shown in FIGS. 3(a) to 3(d), the paper tube 121 is composed of two layers. When the paper tube 121 has a plurality of layers, each layer may be composed of different types of paper. When the paper tube 121 is composed of a plurality of layers, the number of layers can be, for example, 2, 3, 4, or 5, and 2 or 3 is preferable. When the paper tube 121 is composed of a plurality of layers, in one aspect, the air permeability of the paper forming the layer (innermost layer) facing the hollow of the paper tube 121 is preferably 0 to 50 Gurley units, and more preferably 0. When the paper with such a low air permeability is used as the paper forming the layer (innermost layer) 121b facing the hollow of the paper tube 121, the penetration of the delivery additive 200 into the paper tube can be prevented.

[0023] When the paper tube 121 is composed of a plurality of layers, in another aspect, the air permeability of the paper forming the layer (innermost layer) 121b facing the hollow of the paper tube 121 is preferably 500 Gurley units or more, more preferably 3000 or more, and even more preferably 10000 or more. On the other hand, the air permeability of the paper forming the layer (innermost layer) 121b facing the hollow of the paper tube 121 is preferably 30000 or less, and more preferably 25000 or less. By using the paper having such an air permeability, when the delivery additive 200 is a liquid, the release efficiency thereof is improved.

[0024] When the paper tube 121 is composed of multiple layers in its thickness direction, for example, when it is composed of two layers as shown in Figure 3, it is preferable that the layer 121a located on the outer periphery side of the layer facing the hollow of the paper tube (innermost layer) 121b is made of paper having an air permeability of 0 to 50 cholesta units. In this case, it is more preferable that the air permeability of the paper be 0 to 20 cholesta units, and even more preferable that it be 0 cholesta units. Furthermore, when the paper tube 121 is composed of three or more layers, it is preferable that the air permeability of the paper constituting at least one of the layers located on the outer periphery side of the layer facing the hollow of the paper tube (innermost layer) 121b is 0 to 50 cholesta units, more preferably 0 to 20 cholesta units, and even more preferable that it be 0 cholesta units. Furthermore, when the paper tube 121 is composed of three or more layers, for example, there can be an embodiment in which there is yet another layer 121c (not shown) between the innermost layer 121b and layer 121a. In that case, there are no particular restrictions on the paper that constitutes layer 121c, but it may be the same paper as that which constitutes layer 121b, or even if a different paper is used, it may be paper that has the same range of air permeability as the paper that constitutes layer 121b. Alternatively, paper with a lower air permeability than layer 121b, for example, paper with an air permeability range of 0 to 50 cholesta units, preferably 0 cholesta units, may be used.

[0025] If the paper tube has multiple layers in its thickness direction, the density of the paper constituting the innermost layer 121b facing the hollow of the paper tube 121 is, in one embodiment, 0.6 to 1.5 g / cm³ from the viewpoint of suppressing the penetration of the delivery additive 200 into the paper tube 121. ３ Preferably, it is 0.7 to 1.3 g / cm³. ３ The concentration is 0.8 to 1.2 g / cm³. ３ It is even more preferable that the paper tube has multiple layers in its thickness direction, and the density of the paper constituting the innermost layer 121b facing the hollow of the paper tube 121 is, in another embodiment, 0.6 g / cm³, from the viewpoint of improving the release efficiency of the delivery additive 200. ３ It may be less than 0.5 g / cm³, preferably 0.5 g / cm³. ３ It is less than 0.4 g / cm³.３ It is more preferable that it be less than [a certain value].

[0026] When the paper tube 121 is composed of multiple layers in its thickness direction, for example, when it is composed of two layers as shown in Figure 3, the layer 121a located on the outer side of the paper tube, which is on the outer side of the layer 121b facing the hollow of the paper tube (innermost layer), may, in one embodiment, have a density of 0.6 to 1.5 g / m ３ It is preferable that the paper be made of a paper having a density of 0.7 to 1.3 g / m². ３ It is more preferable that the amount be 0.8 to 1.2 g / m ３ It is even more preferable that the paper tube 121 is composed of three or more layers. Furthermore, if the paper tube 121 is composed of three or more layers, the density of the paper constituting at least one of the layers located on the outer periphery of the layers that are located on the outer periphery of the layer (innermost layer) 121b facing the hollow of the paper tube is 0.6 to 1.5 g / m². ３ Preferably, it is 0.7 to 1.3 g / m ３ It is more preferable that the amount be 0.8 to 1.2 g / m ３ It is even more preferable that this be the case.

[0027] In the case where the paper tube 121 is composed of multiple layers in its thickness direction, the basis weight of the paper constituting the innermost layer 121b facing the hollow of the paper tube 121 is preferably 50 to 200 gsm, more preferably 70 to 150 gsm, and even more preferably 80 to 120 gsm, from the viewpoint of the rigidity of the paper tube 121. In another case where the paper tube 121 is composed of multiple layers in its thickness direction, the basis weight of the paper constituting the innermost layer 121b facing the hollow of the paper tube 121 is less than 50 gsm, preferably 40 gsm or less, and more preferably 30 gsm or less, from the viewpoint of improving the release efficiency of the delivery additive 200.

[0028] When the paper tube 121 is composed of multiple layers in its thickness direction, for example, when it is composed of two layers as shown in Figure 3, it is preferable that the layer 121a located on the outer side of the layer facing the hollow of the paper tube (innermost layer) 121b is made of paper having a basis weight of 50 to 200 gsm. In this case, the density of the paper is more preferably 70 to 150 gsm, and even more preferably 80 to 120 gsm. Furthermore, when the paper tube 121 is composed of three or more layers, the basis weight of the paper constituting at least one of the layers located on the outer side of the layer facing the hollow of the paper tube (innermost layer) 121b is preferably 50 to 200 gsm, more preferably 70 to 150 gsm, and even more preferably 80 to 120 gsm.

[0029] Whether the paper tube 121 is composed of one layer or two or more layers in its thickness direction, the total basis weight of the paper constituting the paper tube 121 may be 100 to 1000 gsm, preferably 100 to 500 gsm, more preferably 120 to 400 gsm, even more preferably 130 to 300 gsm, and particularly preferably 150 to 200 gsm. Having the basis weight of the paper constituting the paper tube 121 within the above range ensures the rigidity of the paper tube 121 and improves heat conduction when the aerosol generation segment is heated.

[0030] When the paper tube 121 has multiple layers, it is preferable that the delivery additive 200 is applied to the layer (innermost layer) 121b facing the hollow of the paper tube. In this case, examples of how the delivery additive 200 is applied include, as explained above, an application to the surface of the layer (innermost layer) 121b facing the hollow of the paper tube (Figure 3(a)), or an application in which the delivery additive 200 penetrates into the interior of the layer (innermost layer) 121b facing the hollow of the paper tube (Figure 3(b)).

[0031] If the paper tube 121 has multiple layers in the thickness direction, the air permeability, basis weight, and density of each layer can be any combination of the ranges mentioned above. Furthermore, the manufacturing method for the paper tube 121 can be, for example, the method described in Japanese Patent Application Publication No. 2018-93867.

[0032] The paper tube 121 has a liquid impermeable layer and a delivery additive on its inner surface, and it is preferable that the delivery additive is applied to the liquid impermeable layer. In this case, it is preferable that the delivery additive is applied, specifically coated, to the surface of the paper tube on the liquid impermeable layer that faces the hollow. By applying the delivery additive to the liquid impermeable layer, it is possible to suppress the penetration of the delivery additive into the thickness direction of the paper constituting the paper tube. If high-density paper is used as the paper constituting the paper tube, if the delivery additive penetrates the paper, the release efficiency of the delivery additive may decrease. Examples of materials constituting the liquid impermeable layer include cellulose compounds such as nitrocellulose and ethylcellulose, polymers such as polyvinyl alcohol, polyvinyl acetate, and ethylene vinyl acetate, cellulose, microcrystalline cellulose, microfibril cellulose, starch, modified starch, tamarind gum, gellan gum, roasted bean gum, gum arabic, guar gum, pectin and other polysaccharides, and waxes. In particular, one or more selected from the group consisting of polysaccharides, waxes, nitrocellulose, ethylcellulose, and gum arabic are preferably exemplified. Alternatively, a metal layer made of aluminum or the like may be provided as the liquid-impermeable layer. In this case, not only is the liquid-impermeable effect enhanced, but heat can also be efficiently transferred to the paper tube 121 through heat conduction associated with the heating of the aerosol-generating segment. The liquid-impermeable layer is provided in the innermost layer 121b of the paper tube 121, facing the hollow side, and it is preferable to further apply a delivery additive so as to be in contact with the liquid-impermeable layer. This allows the delivery additive to be applied to the liquid-impermeable layer.

[0033] Figure 3 shows that the paper tube 121 is composed of a single paper tube and has two regions, a first region 120a and a second region 120b. However, the paper tube 121 may be composed of two paper tubes, with the upstream paper tube in the longitudinal direction corresponding to the first region 120a and the downstream paper tube in the longitudinal direction corresponding to the second region 120b (not shown). With such a configuration, for example, the inner surface of the upstream paper tube in the longitudinal direction may be coated with the delivery additive, while the inner surface of the downstream paper tube in the longitudinal direction may not be coated with the delivery additive. This allows for the preparation of an intermediate segment 120 in which the delivery additive is applied only to the necessary parts of the paper tube. In this case, the upstream paper tube in the longitudinal direction can be configured with any configuration regarding the layer configuration in the thickness direction, the method of applying the delivery additive, the air permeability, density, basis weight, and the configuration of the liquid impermeable layer as described above.

[0034] The paper tube 121 has a delivery additive inside. The delivery additive can be one or more selected from the group consisting of liquids, gels, and solids. As shown in Figures 3(a) to (d), if the paper tube 121 is composed of a first region 120a on the upstream side in the longitudinal direction and a second region 120b further downstream in the longitudinal direction, it is preferable that the delivery additive is applied inside the paper tube 121 corresponding to the first region 120a. With such a configuration, the release efficiency of the delivery additive is improved, and the decrease in the amount of aerosol base material and flavor components delivered with an increase in the number of puffs when using the aerosol product can be suppressed.

[0035] As liquid delivery additives, liquid aerosol base materials or fragrances can be used as they are. Alternatively, a liquid mixture can be prepared by adding a binder and solvent as needed to create a viscous liquid, which can then be used as a delivery additive. The same gelling agent described below can be used as the binder. When a solvent is mixed with the liquid delivery additive, it is assumed that virtually no solvent remains in the resulting paper tube 121.

[0036] Examples of fragrances used in the delivery additive include menthol, spearmint, peppermint, fenugreek, clove, medium-chain triglyceride (MCT), or combinations thereof. Examples of aerosol base materials used in the delivery additive include glycerin, propylene glycol, triacetin, 1,3-butanediol, or mixtures thereof. Among these, from the viewpoint of flavor, it is preferable that the aerosol base material contains at least one selected from the group consisting of glycerin and propylene glycol, and more preferably contains glycerin.

[0037] As a gel delivery additive, a liquid aerosol base material or a gel prepared by mixing a fragrance with a gelling agent can be used. Examples of gelling agents include xanthan gum, gellan gum, psyllium seed gum, pectin, carboxymethylcellulose, hydroxypropylcellulose, sodium salt of carboxymethylcellulose, polyvinyl alcohol, agarose, pullulan, alginic acid, polyacrylic acid, urethane compounds, and their alkali metal salts or alkaline earth metal salts, carrageenan, agar, xanthan gum, gellan gum, psyllium seed gum, konjac glucomannan, locust bean gum, guar gum, tamarind gum, tara gum, starch, cassia gum, or psyllium seed gum. Among these, from the viewpoint of flavor influence, at least one selected from the group consisting of carboxymethylcellulose, hydroxypropylcellulose, sucrose acetate isobutyrate, agarose, agar, gellan gum, tamarind gum, and guar gum is preferred. Among the gelling agents mentioned above, those capable of forming a three-dimensional network structure (gelling) are preferred, with at least one selected from the group consisting of agar, gellan gum, tamarind gum, and guar gum being more preferred, and agar being particularly preferred. The ratio of liquid to gelling agent content is, for example, 99 / 1 to 90 / 10 by weight.

[0038] As a solid delivery additive, one or more can be selected from the group consisting of threads, strips, and granules. A thread is, for example, a string-like base material to which an aerosol base material and / or fragrance is added. Examples of string-like base materials include cotton yarn or paper twisted together, with a width (thickness) of 0.5 to 1.5 mm. When using threads, a viscous mixture may be prepared by mixing the aerosol base material and / or fragrance with a binder and adding it to the thread. Using such a viscous mixture makes it easier for the delivery additive to be retained on the inner surface of the intermediate segment 120. A strip is, for example, a fragrance film or the like cut into a string-like shape with a width of 0.5 to 1.5 mm. The above-mentioned threads and strips can be used not only as individual pieces, but also by reshaping the pieces together into a single mass.

[0039] Examples of granules include porous materials and capsules. Examples of porous materials include activated carbon or cellulose granules, in which an aerosol base material and / or fragrance is supported in their pores. Examples of the average particle size of the porous material include 0.1 to 4.0 mm. Examples of activated carbon include those made from wood, bamboo, coconut shells, walnut shells, coal, etc. Furthermore, the activated carbon has a BET specific surface area of ​​600 m². ２ / g or more 1800m ３Materials with a pore volume of 400 μL / g or less can be used, and the BET specific surface area can be determined by the nitrogen gas adsorption method (BET multipoint method). Furthermore, the activated carbon can be one in which the pore volume is 400 μL / g or more and 800 μL / g or less. The pore volume can be calculated from the maximum adsorption amount obtained using the nitrogen gas adsorption method. Examples of cellulose granules include crystalline cellulose granules. Crystalline cellulose refers to α-cellulose obtained from fibrous plants that has been partially depolymerized with acid and purified, and can be used as granules. Examples of crystalline cellulose include Ceolus and Cellphia (both available from Asahi Kasei Chemicals Corporation).

[0040] Examples of capsules include crushable capsules in which an aerosol base material and / or fragrance is covered with a crushable outer shell made of gelatin or the like. The form of the capsule is not particularly limited, and for example, it may be an easily crushable capsule, and its shape is preferably approximately spherical. The form of the contents of the capsule is not particularly limited, but is usually liquid or solid. The use of capsules containing contents is well known in the art, and easily crushable capsules and methods for manufacturing them are also well known in the art. The average particle size of the capsule is preferably 0.5 to 3.0 mm, and more preferably 1.0 to 2.5 mm. In addition, so-called microcapsules with an average diameter of 10 to 200 μm, preferably 20 to 100 μm, can also be used.

[0041] The solid delivery additive may be placed in the hollow part of the paper tube 121, for example, as shown in Figure 3(c). In Figure 3(c), a capsule is shown as an example of the delivery additive 200a. In this case, it is preferable that the solid delivery additive is placed inside the paper tube 121 in the part corresponding to the first region 120a. It is preferable that no delivery additive is placed in the part corresponding to the second region 120b. In this case, there may be one or more solid delivery additives, and it may be just one or two or more. The proportion of solids in the hollow part of the paper tube 121 is preferably 1 to 70 volume%, and more preferably 5 to 30 volume%. When the proportion of solids is above the lower limit, the flavor expression is improved, and when it is below the upper limit, the fluidity of the solids is maintained well, and the generated aerosol is prevented from being filtered by the solids. Not only when capsules are used as the solid delivery additive, but when a porous material is used, it may also be placed in the hollow part of the paper tube 121, as shown in Figure 3(c). Furthermore, a binder can be used to fix the capsule or porous material to the hollow part of the paper tube 121.

[0042] The method of applying the liquid delivery additive to the paper tube 121, specifically the coating method, can be exemplified by the method shown in Figure 4. The following method can also be applied when using a gel delivery additive. The amount of liquid or gel delivery additive applied to the paper tube 121 can be expressed, for example, as an amount per unit area of ​​the inner surface of the paper tube 121, ranging from 1 to 500 mg / cm². ２ However, often 10-200 mg / cm³ is used. ２ Preferably, 20 to 100 mg / cm³ ２This is more preferable. Figures 4(a) to 4(d) are unfolded diagrams of the paper constituting the paper tube 121. The delivery additive 200 is applied to the layer facing the hollow portion of the paper tube 121. In either embodiment, the delivery additive is not applied to the entire surface of the paper constituting the paper tube 121, but is applied in stripes. By applying the delivery additive 200 in stripes, deformation of the paper tube 121 during manufacturing becomes less likely compared to when it is applied to the entire surface. In other words, the circularity of the tube cross-section of the paper tube can be improved. This is because, for example, if the delivery additive is a liquid, applying it to the entire surface of the paper constituting the paper tube would cause the entire surface of the paper to be impregnated with liquid, making deformation more likely. Also, when the delivery additive 200 is applied in stripes, the surface area of ​​the delivery additive 200 is increased, so it can efficiently receive heat from the heater, and the volatilization / release of the delivery additive 200 occurs efficiently. Figures 4(a) to 4(d) show examples in which the delivery additive 200 is applied in a stripe pattern to the paper constituting the paper tube 121. Figures 4(a) to 4(c) show examples in which the delivery additive 200 is applied to the part of the paper tube 121 corresponding to the first region 120a, and the delivery additive is not applied to the part of the paper tube 121 corresponding to the second region 120b.

[0043] Two examples of methods for applying the delivery additive 200 shown in Figures 4(a) to 4(d) are given below. The first example is a method of coating with a liquid delivery additive. Specifically, a liquid delivery additive is prepared by mixing an aerosol base material and / or fragrance with a binder and solvent as needed, and this is coated onto the desired position on the paper via a tapered nozzle. In this case, the width of each stripe (coating width) can be 0.5 to 1.5 mm. The thickness of each stripe (coating thickness) can be 0.1 to 1.0 mm. The second example is a method of placing and fixing threads or strips, which are the solid delivery additives mentioned above, onto the paper constituting the paper tube 121. A binder may be used to fix the solid delivery additives to the paper. The width (thickness) of the threads or strips is as described above.

[0044] Figures 4(a) to 4(d) show an example in which one type of delivery additive 200 is applied to the paper, but two or more different types of delivery additives may be applied to the paper. Different types of delivery additives here mean different types of aerosol base material and / or fragrance. This makes it possible to provide users of the aerosol product with a variety of flavors. Also, by using different types of delivery additives, the manner of volatilization / release due to heating will differ, so the components delivered to the user can be changed as the number of puffs during use of the aerosol product increases. Even when two or more different types of delivery additives are applied to the paper, it is preferable that each delivery additive is applied to the part of the paper tube 121 corresponding to the first region 120a, and no delivery additive is applied to the part of the paper tube 121 corresponding to the second region 120b.

[0045] Among the above-mentioned delivery additives, it is preferable to use gels or solids, considering the suitability of the paper tubes 121 that constitute the intermediate segment 120 for manufacturing and storage. Among solids, it is preferable to use capsules, especially microcapsules.

[0046] Furthermore, multiple types of the above-mentioned delivery additives can be used. Different types of delivery additives here refer to those with different forms, such as liquid delivery additives and solid delivery additives. For example, as shown in Figure 3(d), a liquid delivery additive 200 may be coated onto a layer corresponding to the inner surface of the paper tube 121, and a solid delivery additive (e.g., a capsule) 200a may be placed in the hollow part of the paper tube 121. In this case, it is preferable that both delivery additives are placed inside the paper tube 121 in the part corresponding to the first region 120a.

[0047] <Aerosol-Generating Segment> The aerosol-generating segment 110 according to this embodiment is not particularly limited as long as it contains tobacco raw materials. As an example, the aerosol-generating segment shown in Figure 2 can be made of a tobacco filling 111 consisting of a sheet material containing tobacco raw materials or shredded tobacco, etc. (hereinafter, the filling including the sheet material and other materials that are filled into the aerosol-generating segment 110 may be collectively referred to simply as "tobacco filling"), which is wrapped in a wrapping paper (wrapper) 112.

[0048] The wrapper paper 112 on which the aerosol-generating segment is wound is preferably coated on the inside. There are no particular restrictions on the coating agent, but a coating agent that can form a film on the surface of the paper and reduce the permeability of liquids is preferred. By coating the inside of the wrapper paper 112, even if the amount of aerosol substrate contained in the aerosol-generating segment is large, the penetration of the aerosol substrate into the wrapper paper 112 can be suppressed.

[0049] Furthermore, the aerosol generation segment 110 may have a fitting portion for a heater member or the like for heating the aerosol product 100.

[0050] The length of the aerosol generation segment 110 in the longitudinal direction can be appropriately changed according to the size of the product, but is usually 5 mm or more, preferably 7 mm or more, more preferably 10 mm or more, and usually 70 mm or less, preferably 50 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less.

[0051] The air permeability resistance of the aerosol-generating segment 110 is typically 0.1 mmH. ２ O / mm~20mmH ２ 0 / mm, preferably 0.5mmH ２ O / mm~15mmH ２ 0 / mm, more preferably 1.0 mmH ２ O / mm~10mmH ２ The value is 0 / mm. The air permeability resistance of the aerosol-generating segment can be measured in the same way as the air permeability resistance of the aerosol product.

[0052] The tobacco filler 111 may contain an aerosol base material that generates an aerosol. The type of aerosol base material is not particularly limited, and various natural extracts and / or their components can be selected depending on the application. Examples of aerosol base materials include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The content of the aerosol base material in the tobacco filler 111 is not particularly limited, but from the viewpoint of generating a sufficient aerosol and imparting a good flavor, it is usually 5% by weight or more, preferably 10% by weight or more, and usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less, relative to the total amount of the tobacco filler. The tobacco filler 111 may also contain a flavoring agent.

[0053] <Sheet material contained in the aerosol-generating segment> The sheet material is not particularly limited as long as it contains tobacco raw materials, and known materials can be used. The amount of tobacco raw materials (e.g., dried tobacco leaves) contained in the aerosol-generating segment 110 is not particularly limited, but can be between 200 mg and 800 mg, and preferably between 250 mg and 600 mg. This range is particularly suitable for an aerosol-generating segment 110 with a circumference of 22 mm and a length of 20 mm.

[0054] The method of filling the aerosol generating segment 110 with the sheet material is not particularly limited. For example, the sheet material may be wrapped in a wrapper 112, or the sheet material may be filled into a tubular wrapper 112. If the shape of the aerosol generating segment 110 is a substantially rectangular parallelepiped with a longitudinal direction, the aerosol generating segment 110 may be filled in such a way that its longitudinal direction is in an unspecified direction within the wrapper 112, or it may be filled in an aligned manner so that it is aligned along the longitudinal axis of the aerosol generating segment 110 or perpendicular to the longitudinal axis. For example, the sheet material may be cut into widths of 0.5 mm to 2.0 mm (lengths of, for example, 5 mm to 40 mm) and filled in a random orientation, or the sheet material may be cut into widths of 1.0 mm to 3.0 mm (lengths of, for example, 5 mm to 40 mm) and filled in an aligned manner parallel to the longitudinal axis, or the sheet material may be crimped (processed to create vertical grooves) and then gathered and filled. When the aerosol generating segment 110 is heated, the tobacco components contained in the aerosol generating segment 110 vaporize, and upon inhalation, these vaporize and transfer to the intermediate segment 120 and the mouthpiece segment 130.

[0055] The width of the sheet material depends on the size and shape of the aerosol generating segment 110. For example, if the aerosol generating segment 110 is a rod shape with a major axis length of 14 mm and a diameter of 7 mm, the width is usually 50 mm to 250 mm, more preferably 100 mm to 200 mm, and even more preferably 140 mm to 160 mm. If the width of the sheet material is within the above range, sufficient aerosol can be generated.

[0056] <Tip Segment> The aerosol product 100 may include a tip segment 113 adjacent to the aerosol generating segment 110 on the upstream side in the longitudinal direction, as shown in Figure 2, for example. The tip segment 113 may have a filler 114 inside and be wrapped with a wrapper paper 112 (tip segment wrapper). The filler 114 may include cellulose acetate fibers, natural pulp fibers, etc. Preferably, the filler contains paper. The tip segment 113 may further contain an aerosol base material and / or a fragrance, etc. If the tip segment 113 contains an aerosol base material, the tip segment 113 will also constitute a part of the aerosol generating segment. By providing the tip segment 113, it is possible to suppress the filler from spilling out of the aerosol generating segment 110. In Figure 2, the tip segment 113, the aerosol generating segment 110, and the intermediate segment 120 are wrapped and connected in the same chip paper 140a (second chip paper) in order from the upstream side in the longitudinal direction. The second chip paper covers the entire circumference of the aerosol generating segment 110 and extends to the outer circumference of the intermediate segment 120 on the upstream side in the longitudinal direction. In other words, the aerosol generating segment 110 and the intermediate segment 120 are wound with the same chip paper, and the chip paper covers at least the entire circumference of the aerosol generating segment. In this embodiment, heat generated by heating the aerosol generating segment 110 is more easily transferred to the upstream side in the longitudinal direction of the intermediate segment 120. Furthermore, as shown in Figure 2, it is preferable that the second chip paper covers the entire circumference of the first region 120a of the intermediate segment 120. This makes it easier for heat to be transferred to the first region 120a. In addition, these three connected segments and the mouthpiece segment 130 are wound and connected with the chip paper 140 (first chip paper).

[0057] The cross-sectional shape of the tip segment 113 is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product. The length of the tip segment 113 in the longitudinal direction can be appropriately changed according to the size of the product, but is usually 3 mm or more and 15 mm or less, and preferably 5 mm or more and 10 mm or less.

[0058] <Mouthpiece Segment> The configuration of the mouthpiece segment 130 is not particularly limited as long as it has the function of a general filter. For example, an acetate filter can be made by using cellulose acetate tow as the filter material 150 and winding the filter material 150 in a cylindrical shape with a filter wrapper (winding paper) 160. The single filament fineness and total fineness of the cellulose acetate tow are not particularly limited, but when the circumference of the mouthpiece segment 130 is 22 mm, the single filament fineness is preferably 5 to 20 g / 9000 m and the total fineness is preferably 12,000 to 30,000 g / 9000 m. The cross-sectional shape of the fibers of the cellulose acetate tow may be a Y cross-section or an R cross-section. When filling with cellulose acetate tow to form the mouthpiece segment 130, triacetin may be added at a rate of 5 to 10% by mass relative to the mass of the cellulose acetate tow in order to improve the filter hardness. In the example shown in Figure 2, the mouthpiece segment 130 is composed of a single segment, but the mouthpiece segment 130 may be composed of multiple segments. When the mouthpiece segment 130 is composed of multiple segments, for example, a hollow filter such as a center hole may be placed as the upstream segment on the upstream side (aerosol generation segment 110 side), and an acetate filter with a mouthpiece cross-section filled with cellulose acetate tow may be placed as the downstream segment (mouthpiece end 101 side). This configuration prevents unnecessary loss of the generated aerosol and improves the appearance of the aerosol product 100. Alternatively, from the viewpoint of changes in the sensation of inhalation and comfort in the mouth, an acetate filter may be placed on the upstream side (aerosol generation segment 110 side), and a hollow filter such as a center hole may be placed on the downstream segment (mouthpiece end 101 side). Furthermore, the mouthpiece segment 130 can also be configured to use other alternative filters instead of cellulose acetate tow as the filter material 150, such as a paper filter filled with sheet-like pulp paper as the filter material 150.

[0059] The cross-sectional shape of the mouthpiece segment 130 is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product, but is usually 4.0 mm or more and 9.0 mm or less, preferably 4.5 mm or more and 8.5 mm or less, and more preferably 5.0 mm or more and 8.0 mm or less. The axial length of the mouthpiece segment 130 can be appropriately changed according to the size of the product, but is usually 5 mm or more and 35 mm or less, preferably 10.0 mm or more and 30.0 mm or less. The shape and dimensions of the filter material can be appropriately adjusted so that the shape and dimensions of the mouthpiece segment 130 fall within the above range.

[0060] The airflow resistance per axial length of 120 mm of the mouthpiece segment 130 is not particularly limited, but is typically 40 mmH. ２ O or more, 300mmH ２ It is less than 0 and 70 mmH ２ O or more, 280mmH ２ Preferably, it should be 0 or less, and 90 mmH ２ O or more, 260mmH ２ It is more preferable that the value be 0 or less. The airflow resistance of the mouthpiece segment can be measured using the same method as the method for measuring the airflow resistance of the aerosol product described above.

[0061] Furthermore, the density of the filter material 150 in the mouthpiece segment 130 is not particularly limited, but is usually 0.10 g / cm³. ３ Above, 0.25g / cm ３ The following is the value: 0.11 g / cm³ ３ Above, 0.24g / cm ３ Preferably, it is 0.12 g / cm³. ３ Above, 0.23g / cm ３The following is more preferable: The mouthpiece segment 130 may be provided with a filter wrapper for winding filter material, etc., from the viewpoint of improving strength and structural rigidity. The form of the filter wrapper is not particularly limited and may include one or more seams containing adhesive. The adhesive may include a hot melt adhesive, and the hot melt adhesive may further contain polyvinyl alcohol. Also, if the mouthpiece segment 130 consists of two or more segments, it is preferable to wind these two or more segments together with a connecting filter wrapper (outer filter wrapper) in order to connect the segments. It is preferable that the filter wrapper is wound around these two or more segments together. The material of the filter wrapper in the mouthpiece segment 130 is not particularly limited and known materials can be used, and it may also contain fillers such as calcium carbonate.

[0062] The thickness of the filter wrapper 160 is not particularly limited, but 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 filter wrapper 160 is not particularly limited, but 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. The filter wrapper may or may not be coated, but from the viewpoint of providing functions other than strength and structural rigidity, it is preferable to coat it with a desired material.

[0063] If the mouthpiece segment 130 includes a center hole filter and an acetate filter, the center hole filter and the acetate filter may be connected, for example, by an outer filter wrapper. The outer filter wrapper can be, for example, a cylindrical piece of paper. The aerosol generating segment 110, the intermediate segment 120, and the mouthpiece segment 130 to which the center hole filter and acetate filter are connected may also be connected, for example, by tip paper 140. These connections can be made, for example, by applying an adhesive such as vinyl acetate adhesive to the inner surface of the tip paper 140, and then placing the aerosol generating segment 110, the intermediate segment 120, and the mouthpiece segment 130 to which the center hole filter and acetate filter are connected inside and rolling it up. These connections may also be made in multiple steps using multiple connecting papers. For example, the aerosol generating segment 110 and the intermediate segment 120 may be pre-connected with a second connecting paper (second tip paper 140a), and then they may be connected to the mouthpiece segment 130 with a first connecting paper (first tip paper 140).

[0064] The mouthpiece segment 130 may contain a crushable capsule inside, which includes a crushable outer shell made of gelatin or the like. The capsule can be the same type as that described above for delivery additives.

[0065] <Tip Paper> The material of the tip paper 140 connecting two or more segments selected from the aerosol generating segment 110, the intermediate segment 120, and the mouthpiece segment 130 is not particularly limited, and known materials can be used. The tip paper 140 may also contain fillers such as calcium carbonate.

[0066] In this embodiment, as shown in Figures 1 and 2, the segments are not limited to those that exist continuously in the longitudinal direction, but also include embodiments in which there are no segments other than the segment in contact with the intake end of the filter, that is, embodiments in which there are gaps (also called cavities) between segments. Such cavities can be formed by molding the above-mentioned molded paper or chip paper into a cylindrical shape, but in this case, it is not necessarily required that the molded paper or the like that forming the cavity has a liquid-repellent layer.

[0067] <Non-combustion type aerosol generation system> The aerosol product 100 described above can be used together with a non-combustion type aerosol generation device that heats the aerosol product 100. That is, a non-combustion type aerosol generation system (also simply called the "non-combustion type aerosol generation system"), which is another embodiment of the present invention, is a non-combustion type aerosol generation system comprising the aerosol product described above and a non-combustion type aerosol generation device that heats the aerosol product. The configuration of the non-combustion type aerosol generation system is not particularly limited and can be configured as shown in Figure 5, for example. Figure 5 is a diagram illustrating the internal structure of the non-combustion type aerosol generation system 300. The aerosol product 100 in Figure 5 is a schematic representation of the aerosol product 100 in Figure 1.

[0068] The non-combustible aerosol generation system 300 comprises an aerosol product 100 and a non-combustible aerosol generation device 30 that heats the aerosol generation segment 110 of the aerosol product 100. The aerosol product 100 is housed in a housing section 310 that can be inserted into and removed from the housing section 310 through an insertion port 3A of the non-combustible aerosol generation device 30.

[0069] In the non-combustion type aerosol generating device 30, when used by a user, the aerosol product 100 is inserted into the housing section 310. In this state, a heater 32 provided in the housing section 310 is heated, heating the flavor source within the aerosol product 100, thereby generating an aerosol containing components such as tobacco for the user to inhale. Alternatively, the heater 32 may directly heat the aerosol generating segment 110, or it may heat the aerosol source within the aerosol product 100, supplying the heated aerosol to the aerosol generating segment 110, which in turn heats the tobacco components within the aerosol generating segment 110 for the user to inhale. The heater 32 may also heat the aerosol generating segment 110 from the outside or from the inside. If a susceptor heated by induction heating is provided within the aerosol generating segment 110, the non-combustion type aerosol generating device 30 may be provided with an induction coil instead of the heater 32. As shown in Figure 5, it is preferable that the heater 32 is positioned such that it heats at least partially the aerosol generation segment 110 and the intermediate segment when the aerosol product 100 is fitted into the non-combustion type aerosol generation device 30. In this case, it is preferable that the heater 32 extends to cover a range of 1 to 10 mm from the upstream end in the long axis direction of the intermediate segment 120 of the aerosol product 100, more preferably to cover a range of 2 to 5 mm, and particularly preferably to cover a range of 2 to 3 mm. With the heater 32 in this configuration, the upstream side in the long axis direction of the intermediate segment 120, more specifically the first region 120a, is heated appropriately.

[0070] The non-combustion type aerosol generating device 30 has an outer wall 301 and a housing 31 which is a casing for housing various components. The housing 31 houses a heater 32, a temperature sensor 35, a suction sensor 36, a control unit 37, a power supply 38, etc. The housing section 310 may have a metal tube (not shown). In this case, it is preferable that the metal tube constitutes at least the upstream side in the longitudinal direction of the housing section 310. The aerosol product 100 is fitted into this metal tube. The heater 32 is arranged on the outer circumference of the metal tube. Furthermore, when the aerosol product 100 is fitted into the metal tube, it is preferable that the downstream end of the metal tube in the longitudinal direction of the aerosol product 100 is located in the range of -2 to 2 mm from the downstream end in the longitudinal direction of the first region 120a of the intermediate segment 120 of the aerosol product 100, and more preferably in the range of -1 to 1 mm. With the end of the metal tube (the downstream end in the longitudinal direction of the aerosol product 100) positioned in this manner, the upstream side of the intermediate segment 120 in the longitudinal direction, more specifically the first region 120a, is heated appropriately. The housing 310 may also have a resin tube downstream of the metal tube. By having a resin tube, the heat from the heater 32 is less likely to be transferred to the downstream side of the intermediate segment 120 in the longitudinal direction, more specifically the second region 120b, and the aerosol in the second region 120b can be cooled effectively.

[0071] The present invention will be described in more detail by examples, but the present invention is not limited to the following examples unless it exceeds the gist of the invention.

[0072] <Test 1> Aerosol product: An aerosol product was prepared having a tip segment, an aerosol generating segment, an intermediate segment, and a mouthpiece segment. The lengths in the longitudinal direction of the tip segment, aerosol generating segment, intermediate segment (paper tube), and mouthpiece segment constituting the aerosol product were set to 6 mm, 14 mm, 20 mm, and 20 mm, respectively. The cross-sectional diameter of the paper tube was 6.9 mm, and the cross-sectional diameter of the aerosol product was 7.0 mm. A mixture of glycerin and agar (with an agar content of 1% by mass in the mixture) was prepared as a delivery additive.

[0073] [Experimental Example 1] The delivery additive was applied to the inner surface facing the hollow of the paper tube constituting the intermediate segment of the aerosol product. The application area was limited to 10 mm from the upstream side in the longitudinal direction of the intermediate segment. The amount of delivery additive applied was 20 mg. The paper tube was composed of two layers in its thickness direction, each layer having a thickness of 100 μm, a basis weight of 85 gsm, an air permeability of 0 cholesterol units, and a density of 0.85 g / cm³. ３ It is made of paper.

[0074] [Control] The aerosol product was used as is, without the delivery additive being coated onto the inner surface of the paper tube constituting the intermediate segment.

[0075] [Evaluation Method] The aerosol delivery of the aerosol product prepared in Experimental Example 1 and the control aerosol product was evaluated using the following method. The aerosol products of Experimental Example 1 and the control were inserted into an electric heating device, and the device was switched on. The smoking test was started after the device became ready for smoking. The smoking test was conducted using a single-cylinder automatic smoking machine manufactured by Borgwald, with 11 puffs of smoking conducted every 30 seconds, with 55 mL / 2 sec = 1 puff. Aerosol was collected with a Cambridge filter after each puff. After the smoking test, each Cambridge filter was extracted with 10 mL of ethanol, and the amount of aerosol base material (glycerin) was measured by GC-MS. Figure 6 shows a graph of the amount of glycerin delivered for each puff. As shown in Figure 6, a difference in the amount of glycerin delivered occurred as the number of puffs increased, and it was found that Experimental Example 1 had a larger delivery amount.

[0076] <Experiment 2> An aerosol product was prepared having an aerosol-generating segment, an intermediate segment, and a mouthpiece segment. The length of each segment was 20 mm. A delivery additive (a spherical solid composed of agar and flavoring) was placed inside the paper tube constituting the intermediate segment of the aerosol product in the manner shown in Figure 3(c). The area where the delivery additive was placed is the inside of the paper tube corresponding to the first region (Experimental Example 2). In addition to this aerosol product, a control aerosol product without the delivery additive (control) was prepared. Sensory evaluation was performed by four panelists using the control aerosol product and the aerosol product from Experimental Example 2. The flavor intensity of the aerosol product used as the control was set to 3, and the evaluation was performed on a 5-point scale. When using the aerosol product, nine puffs were performed, and the evaluation was divided into 1-3 puffs, 4-6 puffs, and 7-9 puffs. The results are shown in Table 1. As shown in Table 1, the flavor persisted even towards the end of use of the aerosol product (even with an increased number of puffs).

[0077] <Test 3> Capsules with a diameter of 1.5 mm were prepared as a delivery additive. A liquid solution of 50 parts by mass of menthol dissolved in 50 parts by mass of medium-chain fatty acid triglyceride was used as the capsule core. The capsule shell was prepared by combining gellan gum as a gelling agent, glycerin as a plasticizer, and starch as a bulking agent. The above materials were encapsulated using a seamless capsule manufacturing apparatus with a double coaxial nozzle. Twenty capsules of the prepared delivery additive were filled into a paper tube. The capsules were filled in a state where they could flow freely without being adhered to the inner surface of the paper tube. The aerosol product used had the same composition as that used in Test 1. When the capsule was heated as the aerosol product was used, the capsule shell was exposed to high temperature and melted, releasing the liquid core. <Sensory evaluation results> The user felt menthol at the start of smoking. As the user progressed from the second puff to the third puff, the menthol sensation felt by the user weakened. After taking five puffs, the user shook the aerosol product. After shaking, the user felt a strong menthol sensation from the sixth puff onwards. This is thought to be because shaking the aerosol product caused the capsule inside the paper tube, which was previously located far from the heater of the electric heating device, to move closer to the heater, thereby releasing menthol.

[0078] <Test 4> Similar to Test 2, an aerosol product consisting of an aerosol-generating segment, an intermediate segment, and a mouthpiece segment was prepared. As delivery additives, (1) a mixture of agar and menthol (gelling fragrance 1) and (2) a mixture of tamarind gum, gellan gum, and menthol (gelling fragrance 2) were prepared. Of these delivery additives, the aerosol product of Experimental Example 2 was prepared by coating (1) gelling fragrance 1 on the inner surface facing the hollow of the paper tube constituting the intermediate segment, and the aerosol product of Experimental Example 3 was prepared by coating (2) gelling fragrance 2 on the inner surface facing the hollow of the paper tube constituting the intermediate segment. In both Experimental Examples 2 and 3, the delivery additive was coated on the part corresponding to the first region 120a, as shown in Figure 3(a). In addition, the aerosol product of Experimental Example 4 was prepared by adding menthol to the aerosol-generating segment in the same amount as in Experimental Example 2. These aerosol products were subjected to smoking tests using the same procedure as in Test 1, and the amount of menthol in each puff was measured. The results are shown in Figure 7. As shown in Figure 7, compared to Experimental Example 4, it was confirmed that in Experimental Examples 2 and 3, menthol was delivered stably even in the later stages of smoking when the number of puffs increased.

[0079] 100 Aerosol product 101 Mouthpiece end 102 Tip 103 Opening 110 Aerosol generating segment 111 Tobacco filler 112 Rolling paper 120 Intermediate segment 130 Mouthpiece segment 140 Tip paper 150 Filter material 160 Mouthpiece wrapper 200 Non-combustible aerosol generating system 30 Electric heating device 31 Housing 310 Enclosure 32 Heater 35 Temperature sensor 36 Suction sensor 37 Control unit 38 Power supply

Claims

1. An aerosol product comprising an aerosol generating segment, a mouthpiece segment, and an intermediate segment between the aerosol generating segment and the mouthpiece segment, wherein the intermediate segment has at least one paper tube positioned in contact with the downstream end of the aerosol generating segment in the longitudinal direction, and the paper tube has a delivery additive inside.

2. The aerosol product according to claim 1, wherein the paper tube has a first region having a delivery additive and a second region not having a delivery additive, and the first region is located upstream in the longitudinal direction from the second region.

3. The aerosol product according to claim 2, wherein the outer surface of the paper tube corresponding to the first region is heated to 150°C or higher during use.

4. The aerosol product according to claim 2 or 3, wherein the first region is a region from 1 mm to 10 mm from the upstream end in the longitudinal direction of the paper tube.

5. The aerosol product according to any one of claims 2 to 4, wherein the paper tube has an opening in the portion corresponding to the second region.

6. The aerosol product according to any one of claims 1 to 5, wherein the delivery additive is applied to the inner surface of the paper tube.

7. The aerosol product according to any one of claims 1 to 6, wherein the paper tube has a plurality of layers in the thickness direction, and the permeability of the paper constituting the layer facing the hollow of the paper tube is 0 cholesterol units.

8. The paper tube has multiple layers in its thickness direction, and the density of the paper constituting the layer facing the hollow of the paper tube is 0.6 to 1.5 g / cm³. ３ The aerosol product according to any one of claims 1 to 7.

9. The aerosol product according to any one of claims 1 to 8, wherein the paper tube has a plurality of layers in the thickness direction, and the basis weight of the paper constituting the layer facing the hollow of the paper tube is 50 to 200 gsm.

10. The aerosol product according to any one of claims 1 to 6, wherein the paper tube has a plurality of layers in the thickness direction, and the paper constituting the layer facing the hollow of the paper tube is paper with an air permeability of 500 cholesterol units or more.

11. The paper tube has multiple layers in its thickness direction, and the paper constituting the layer facing the hollow of the paper tube has a density of 0.6 g / cm³. ３ An aerosol product according to any one of claims 1 to 7, wherein the product is less than [amount missing].

12. The aerosol product according to any one of claims 1 to 8, wherein the paper tube has a plurality of layers in the thickness direction, and the paper constituting the layer facing the hollow of the paper tube is paper with a basis weight of less than 50 gsm.

13. The aerosol product according to any one of claims 1 to 12, wherein the paper tube has a liquid impermeable layer and a delivery additive on its inner surface, and the delivery additive is applied to the liquid impermeable layer.

14. The aerosol product according to any one of claims 1 to 13, wherein the paper tube has a plurality of layers in the thickness direction, and the delivery additive is applied to the layer facing the hollow of the paper tube.

15. The aerosol product according to any one of claims 1 to 14, wherein the paper tube has a plurality of layers in its thickness direction, and at least one of the layers located on the outer periphery side of the layer facing the hollow of the paper tube is made of paper with a 0 air permeability cholesterol unit.

16. The paper tube has multiple layers in its thickness direction, and at least one of the layers located on the outer periphery side of the layer facing the hollow of the paper tube contains 0.6 to 1.5 g / m ３ The aerosol product according to any one of claims 1 to 15, comprising paper having the density of [a certain value].

17. The aerosol product according to any one of claims 1 to 16, wherein the paper tube has a plurality of layers in its thickness direction, and at least one of the layers located on the outer periphery side of the layer facing the hollow of the paper tube is made of paper having a basis weight of 50 to 200 gsm.

18. The aerosol product according to any one of claims 1 to 17, wherein the total basis weight of the paper constituting the paper tube is 100 to 1000 gsm.

19. The aerosol product according to any one of claims 1 to 18, wherein the paper tube is composed of two paper tubes, an upstream paper tube in the longitudinal direction and a downstream paper tube in the longitudinal direction, the upstream paper tube in the longitudinal direction corresponds to a first region and the downstream paper tube in the longitudinal direction corresponds to a second region.

20. The aerosol product according to any one of claims 1 to 19, wherein the paper tube has a first region having a delivery additive and a second region not having a delivery additive, the first region is located upstream in the longitudinal direction from the second region, and the delivery additive disposed in the first region is one or more solids.

21. The aerosol product according to claim 20, wherein the proportion of the solid delivery additive to the volume of the hollow portion of the paper tube is 1 to 70% by volume.

22. The aerosol product according to claim 20 or 21, wherein the solid delivery additive is a substantially spherical capsule with a diameter of 0.5 to 3 mm, or a thread with a width of 0.5 to 1.5 mm.

23. The aerosol product according to any one of claims 1 to 22, wherein the aerosol generating segment and the intermediate segment are wound on the same chip paper, and the chip paper covers at least the entire circumference of the aerosol generating segment.

24. The aerosol product according to any one of claims 1 to 23, further comprising a tip segment, wherein the tip segment, aerosol generating segment, and intermediate segment are arranged in this order from the upstream side in the longitudinal direction and are wound on the same tip paper.

25. A non-combustion aerosol generation system comprising an aerosol product according to any one of claims 1 to 24 and a device into which the aerosol product is inserted, wherein the device has a heater for heating the aerosol product from its outer periphery, and the heater is arranged to at least partially heat the aerosol generation segment and the intermediate segment.

26. The non-combustion type aerosol generation system according to claim 25, wherein the heater extends to a position 1 to 10 mm from the upstream end in the longitudinal direction of the intermediate segment of the aerosol product.

27. The non-combustion aerosol generation system according to claim 25 or 26, wherein the paper tube has a first region having a delivery additive and a second region not having a delivery additive, the first region being located upstream in the longitudinal direction of the second region, the device having a metal tube for fitting the aerosol product, the heater being arranged on the outer circumference of the metal tube, and when the aerosol product is fitted into the metal tube, the downstream end of the metal tube in the longitudinal direction of the aerosol product is located in the range of -2 to 2 mm from the downstream end in the longitudinal direction of the first region of the intermediate segment of the aerosol product.

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