Linear connecting structure for aerosol generating articles and aerosol generating articles

Abstract

The present invention provides an elastic material for aerosol-generating articles. [Solution] A linear body connecting structure for an aerosol generating article, comprising at least two linear bodies containing plant material, wherein the number of inflection points per meter in the longitudinal direction of the linear bodies is 20 or more and less than 400, and having entangled portions where the linear bodies intertwine and / or adhesive portions where the linear bodies adhere to each other.

Description

Technical Field

[0001] The present invention relates to a linear body coupling structure for aerosol generating articles and aerosol generating articles.

Background Art

[0002] As imitation cigarettes artificially formed into a paper shape using tobacco leaves as a raw material, a sheet formed by papermaking, a cast sheet, a rolled sheet, and an extruded sheet are known. These sheets are usually cut to 0.5 to 2.0 mm and filled into rolling paper. From the viewpoint of reducing the filling density at this time, a certain degree of shape elasticity is required for the sheets. Elasticity is evaluated as the weight per unit volume required to maintain a constant rolling hardness. Elasticity is affected by the notch particle size such as the notch width and notch length. Unlike natural tobacco cuts, the sheet has the advantage of easily achieving a desired notch particle size and shape. For example, Patent Document 1 discloses curling cut tobacco to increase elasticity.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the above-mentioned sheets have a problem that it is difficult to balance the filling density and other performances such as crushing and reduction of flavor. For example, in the papermaking process and the casting process for producing the above-mentioned sheet formed by papermaking and the cast sheet, the maximum water content of the mixture is about 99% by weight and 80% by weight, respectively. Although both processes require a step of drying the wet sheet, a very complicated process is required to freely change the shape until it is dried to the desired moisture. In addition, in order to obtain a certain degree of shape elasticity, fillers such as pulp, which is a shape support material, are required, which may interfere with the expression of tobacco flavor.

[0005] In the extrusion molding process used to manufacture extruded sheets, the shape of the tobacco filler can be controlled to some extent by the shape of the extrusion section. For example, foods manufactured by extrusion molding, such as pasta, can have unique shapes, and similarly, tobacco fillers can also have unique shapes. However, in order to impart a distinctive shape, the primary particle size of the raw materials, the moisture content, the type of binder, and other components of the mixture may be severely limited.

[0006] The rolling process used to manufacture rolled sheets has advantages such as minimal influence from primary particles in the raw materials, the ability to manufacture with relatively low moisture content, and very low drying load. However, because the mixture is processed with rolling rollers, it results in a heavy tobacco sheet with reduced elasticity. Even when a large amount of light, fibrous filler is added to improve elasticity, similar to papermaking or casting processes, the aforementioned influence from the rolling rollers is greater, making it difficult to improve elasticity.

[0007] In view of these circumstances, the object of the present invention is to provide an elastic material for an aerosol-generating article. [Means for solving the problem]

[0008] The present invention includes the following embodiments.

[0009] [1] comprising at least two linear bodies containing plant material, The number of inflection points per meter in the longitudinal direction of the linear body is 20 or more and less than 400. The linear bodies have a confluence portion where they intertwine, and / or an adhesive portion where they adhere to each other. A linear connecting structure for aerosol-generating articles.

[0010] [2] The linear body connecting structure according to [1], wherein the plant material includes a tobacco material.

[0011] [3] The linear body connecting structure according to [1] or [2], wherein the average width of the linear body is 0.1 to 2 mm.

[0012] [4] A linear body connecting structure according to any one of [1] to [3], comprising a first linear body having a first width and a second linear body having a second width different from the first width.

[0013] [5] A linear joint structure according to any of [1] to [4], wherein the air permeability measured by the following method is 10 CU or more. [Method for measuring air permeability] Measured using a Cerulean PPM1000M air permeability meter, under a differential pressure of 1 kPa, at 1 cm². 2 Air flow rate per minute (cm³) 3 ) is defined as the degree of air permeability, and its unit is cholesta units (CU).

[0014] [6] A linear joint structure as described in any of [1] to [5], having a thickness of 0.1 to 7.0 mm.

[0015] [7] A linear body bonding structure according to any of [1] to [6], wherein the apparent density is 0.5 g / ml or less.

[0016] [8] A linear joint structure as described in any of [1] to [7], wherein the elongation as tensile elongation at break, as measured in accordance with JIS P8113:2006, is 0.5 to 10%.

[0017] [9] A linear body connecting structure according to any one of [1] to [8], wherein the average length of the linear body in the longitudinal direction is 5 to 100 mm.

[0018] An aerosol generating article comprising a linear body connecting structure as described in any of

[10] [1] to [9].

[0019] An aerosol generating article formed by wrapping a linear joint structure described in any of

[11] [1] to [9] with a wrapper to create a cylindrical or prismatic shape.

[0020] An aerosol generating article obtained by winding a mixture containing the linear body binding structure according to any one of

[12] [1] to [9] and a plant composition of a type different from the plant material with a wrapper and molding it into a cylindrical or prismatic shape.

Advantages of the Invention

[0021] According to the present invention, a material for an aerosol generating article having elasticity can be provided.

Brief Description of the Drawings

[0022] [Figure 1] It is a schematic diagram showing an example of the linear body binding structure according to the present embodiment. [Figure 2] It is a schematic diagram showing an example of the combustion type fragrance attractor according to the present embodiment. [Figure 3] It is a schematic diagram showing an example of the non-combustion heating type fragrance attractor according to the present embodiment. [Figure 4] It is an example of the non-combustion heating type fragrance attracting system according to the present embodiment, and is a schematic diagram showing (a) a state before inserting the non-combustion heating type fragrance attractor into the heating device and (b) a state of inserting and heating the non-combustion heating type fragrance attractor into the heating device.

Modes for Carrying Out the Invention

[0023] [Linear Body Binding Structure for Aerosol Generating Article] The linear body binding structure for an aerosol generating article according to the present embodiment (hereinafter, also referred to as "linear body binding structure") includes at least two linear bodies containing a plant raw material. The number of inflection points per 1 m in the longitudinal direction of the linear body is 20 or more and less than 400. Further, the linear body binding structure has an entanglement portion where the linear bodies are entangled with each other and / or an adhesion portion where the linear bodies are adhered to each other.

[0024] The linear body connecting structure according to this embodiment is composed of at least two linear bodies containing plant material. Here, "linear body" refers to a continuous, elongated object, where the length in the longitudinal direction of the linear body is greater than the width and thickness. The linear body may include a portion that extends in a straight line, or it may include a curved portion or a bent portion. The linear body may, for example, have a noodle-like shape.

[0025] In the linear body connecting structure according to this embodiment, the linear body may have a curled shape. "Curled shape" refers to a shape having a curved portion, and may also be a wavy shape formed by a series of curved portions. The cross-sectional shape of the linear body is not particularly limited and may be rectangular or circular, for example.

[0026] The number of inflection points per meter in the longitudinal direction of the linear body is 20 or more and less than 400. In the linear body connecting structure according to this embodiment, since the number of inflection points is within the above range, it is possible to have high elasticity derived from these inflection points. Preferably, the number of inflection points is 100 or more and 350 or less, and more preferably 200 or more and 300 or less. By having the number of inflection points within the above range, appropriate bulk and hardness can be achieved, and as a result, higher elasticity can be obtained. An "inflection point" is a point where the unevenness of the curve changes, and the number of inflection points can be confirmed by visual inspection. Furthermore, if the length in the longitudinal direction of the linear body is less than 1 meter, the number of inflection points is calculated when the length in the longitudinal direction is converted to 1 meter.

[0027] The linear body bonding structure according to this embodiment has an entanglement portion where the linear bodies intertwine, and / or an adhesive portion where the linear bodies adhere to each other. That is, the linear body bonding structure has at least one of the entanglement portion and the adhesive portion. In other words, the linear body bonding structure may have only the entanglement portion, only the adhesive portion, or both the entanglement portion and the adhesive portion. In the linear body bonding structure according to this embodiment, the presence of the entanglement portion and / or the adhesive portion prevents the multiple linear bodies from separating, thereby allowing the linear body bonding structure to have high elasticity and rigidity. Therefore, for example, when filling a roll of paper with the linear body bonding structure according to this embodiment, a certain winding hardness can be maintained even if the amount of filling is reduced. Furthermore, in the linear body bonding structure according to this embodiment, the presence of the entanglement portion and / or the adhesive portion makes it difficult for the linear bodies to unravel, thus improving manufacturability.

[0028] Here, "entanglement" refers to a portion where two or more linear bodies intersect and become entangled. "Adhesion" refers to a portion where two or more linear bodies stick together and cannot be separated. The two linear bodies adhering at the adhesion may be the same linear body or different linear bodies. That is, one part of one linear body may adhere to another part of that linear body to form an adhesion, or one part of one linear body may adhere to a part of another linear body to form an adhesion. Furthermore, the entanglement and adhesion may be located between one inflection point and another of the linear bodies, or they may be located on the inflection points. The adhesion between linear bodies at the adhesion may be achieved, for example, by compressing the linear bodies while they are overlapping, as will be described later.

[0029] An example of a linear body connecting structure according to this embodiment is shown in Figure 1. The linear body connecting structure 1 shown in Figure 1 is composed of a plurality of linear bodies 2. Each linear body 2 has a plurality of inflection points 4. The linear body connecting structure 1 has a entangled portion or bonded portion 3 where the linear bodies 2 are entangled or bonded to each other. In Figure 1, three linear bodies 2 are entangled or bonded at the entangled portion or bonded portion 3, but in this embodiment, it is sufficient for at least two linear bodies to be entangled or bonded at the entangled portion or bonded portion.

[0030] The average width of the linear body is preferably 0.1 to 2 mm, more preferably 0.2 to 1 mm, and even more preferably 0.2 to 0.4 mm. By having the average width of the linear body within the above range, appropriate bulk and hardness can be achieved, and as a result, higher elasticity can be obtained. The average width of the linear body is determined by measuring the width of 10 linear bodies and taking the average value.

[0031] The linear body connecting structure according to this embodiment preferably includes a first linear body having a first width and a second linear body having a second width different from the first width. By including two linear bodies of different widths in the linear body connecting structure, it is possible to obtain a linear body connecting structure in which the linear bodies are less likely to unravel and which has high elasticity derived from the inflection point. The one of the first and second linear bodies with the smaller width makes it easier for the linear bodies to interlock / adhere with each other, and as a result, the linear bodies can be made less likely to unravel. On the other hand, the other of the first and second linear bodies with the larger width can impart high elasticity derived from the inflection point to the linear body connecting structure by having the desired rigidity. When the first width is smaller than the second width, the first width of the first linear body is preferably 0.1 to 1 mm, more preferably 0.1 to 0.5 mm, and even more preferably 0.1 to 0.2 mm. Furthermore, the second width of the second linear body is preferably 0.2 to 2 mm, more preferably 0.2 to 1 mm, and even more preferably 0.2 to 0.4 mm. The ratio of the first width to the second width is preferably 1:1.1 to 1:3. The ratio of the number of first linear bodies to the total number of second linear bodies is preferably 30 to 90%, and more preferably 40 to 80%. Furthermore, the ratio of the number of second linear bodies to the total number of first linear bodies is preferably 10 to 70%, and more preferably 20 to 60%.

[0032] The average length in the longitudinal direction of the linear body is preferably 5 to 100 mm, more preferably 10 to 80 mm, and even more preferably 15 to 50 mm. Having the average length in the longitudinal direction of the linear body within this range reduces entanglement during molding, improving manufacturability and the uniformity of the linear body within the linear body connecting structure. The average length in the longitudinal direction of the linear body is determined by measuring the longitudinal lengths of 10 linear bodies while they are stretched in the longitudinal direction, and then taking the average value.

[0033] The shape of the linear bonding structure is not particularly limited, but can be, for example, sheet-like, cylindrical, or prismatic. The thickness of the linear bonding structure is preferably 0.1 to 7.0 mm, more preferably 0.15 to 2 mm, and even more preferably 0.2 to 1 mm. Furthermore, the air permeability of the linear bonding structure, measured by the following method, is preferably 10 CU or more, more preferably 100 to 30000 CU, and even more preferably 1000 to 30000 CU. An air permeability of 10 CU or more improves the efficiency of component release when the linear bonding structure is provided as part of an aerosol generating article and heated and aerated. [Method for measuring air permeability] Measured using a Cerulean PPM1000M air permeability meter, under a differential pressure of 1 kPa, at 1 cm². 2 Air flow rate per minute (cm³) 3 ) is defined as the degree of air permeability, and its unit is cholesta units (CU).

[0034] The apparent density of the linear composite structure is preferably 0.5 g / ml or less, more preferably 0.05 to 0.4 g / ml, and even more preferably 0.1 to 0.3 g / ml. An apparent density of 0.5 g / ml or less allows the linear composite structure to be bulkier and possess higher elasticity. The apparent density is measured by the following method: The width, thickness, and length of the linear composite structure are measured to calculate its volume, and the weight of the linear composite structure used for measurement is determined. The apparent density of the linear composite structure is then calculated as the weight per unit volume.

[0035] The elongation of the linear joint structure as tensile fracture elongation, measured according to JIS P8113:2006, is preferably 0.5 to 10%, more preferably 1 to 8%, and even more preferably 2 to 7%. An elongation of 0.5 to 10% as tensile fracture elongation of the linear joint structure provides the linear joint structure with appropriate flexibility, improving its suitability for manufacturing when incorporated into aerosol-generating articles.

[0036] Examples of plant materials included in the linear structure include tobacco materials, herbaceous plants, and spice materials. The plant materials may include one type or two or more types. Among these, tobacco materials are preferred. As tobacco materials, the whole tobacco plant or parts of the tobacco plant can be used, including leaves, veins, stems, roots, flowers, and mixtures thereof. There are no particular restrictions on the variety of tobacco material, but examples include yellow varieties, Burley varieties, native varieties, and Oriental leaves. One type may be used, or two or more may be used in combination. The tobacco material used may be fresh leaves that have not been dried immediately after harvest, or it may be dried or aged after harvest, or a combination of these may be used. In addition, tobacco with bones, puffed tobacco, etc., obtained by processing these tobacco materials can also be used. These may be used individually or in combination of multiple varieties and parts. Furthermore, tobacco extracts obtained by extracting these tobacco materials using protic solvents, aprotic solvents, etc., can also be used as tobacco materials. The linear material may also include, in addition to the plant raw material, aerosol-generating substrates such as pulp, binder, and glycerin.

[0037] [Method for manufacturing linear composite structures] The method for manufacturing the linear body composite structure according to this embodiment is not particularly limited, but may include, for example, the following steps: (1) Step 1 of preparing a linear body aggregate containing plant material; (2) Step 2 of compressing the linear body aggregate.

[0038] (Process 1) Step 1 prepares a linear aggregate containing plant material. Step 1 may comprise Step a, which involves cutting the entirety of a composition containing plant material from one end to the other to prepare a linear aggregate consisting of a plurality of independent linear bodies, or Step b, which involves cutting a portion of the composition containing plant material from one end to the other to prepare a linear aggregate consisting of a composition with a partial slit. The composition containing plant material may have a sheet shape. The composition containing plant material can be cut, for example, by using a slit roller. In the linear aggregate obtained in Step a, the plurality of linear bodies constituting the linear aggregate are independent of each other and are not connected to each other. On the other hand, in the linear aggregate obtained in Step b, the plurality of linear bodies constituting the linear aggregate are connected to each other at their longitudinal ends and are not independent of each other. However, because a partial slit is provided in the central part, that part is in the state of a linear aggregate. The linear aggregate may be prepared by Step a or by Step b.

[0039] If the plant raw material includes tobacco raw material, step 1 may consist of any of the following steps (1A) to (1D) as a step of preparing a composition containing the aforementioned plant raw material. (1A) A step of preparing a paper-making sheet by a method comprising extracting water-soluble components from the tobacco raw material and separating them into an aqueous extract and a fibrous residue, preparing a mixture of the fibrous residue and a reinforcing material and making paper from it, and adding a concentrated solution of the aqueous extract to the paper-making sheet; (1B) A step of preparing a cast sheet by a method comprising mixing the tobacco raw material, water, a binder, and a reinforcing material as needed to form a mixture, and casting the mixture; (1C) A step of preparing an extruded sheet by a method comprising mixing the tobacco raw material with water, a binder and, if necessary, a reinforcing material to form a mixture, and extruding the mixture from a die; (1D) A step of preparing a rolled sheet by a method comprising mixing the tobacco raw material with water, a binder and a reinforcing material as needed to form a mixture, and processing the mixture with a plurality of rolling rollers.

[0040] In steps (1A) to (1D), examples of reinforcing materials include plant-derived pulp and inorganic reinforcing materials such as calcium carbonate. One of these may be used, or two or more may be used in combination. The composition containing plant raw materials may be the paper-formed sheet, the cast sheet, the extruded sheet, or the rolled sheet, but from the viewpoint of maintaining the shape after molding, a rolled sheet is preferred.

[0041] Step 1 preferably includes a step of preparing a linear aggregate having a curled shape. For example, Step 1 preferably includes a step of preparing the linear aggregate by cutting a composition containing the plant raw material while it is being transported on a first conveyor, and a step of transporting the linear aggregate to a second conveyor having a slower transport speed than the first conveyor to prepare a linear aggregate having a curled shape. By using two conveyors with different transport speeds in this way, when the linear aggregate is transported to the second conveyor having a slower transport speed than the first conveyor, the linear aggregate unravels and curls, and is deposited on the second conveyor. As a result, the linear aggregate is deposited on the second conveyor as a cotton-like deposit layer. With this method, it is easy to control the number of inflection points per meter in the longitudinal direction of the linear material to be between 20 and 400. By compressing the deposit layer in the subsequent Step 2, a linear aggregate with high elasticity can be obtained. The transport speed of the second conveyor is preferably 10 to 80% of the transport speed of the first conveyor.

[0042] (Process 2) In step 2, the linear aggregate obtained in step 1 is compressed. Compression can be performed, for example, by rolling the linear aggregate with a rolling roller. It is preferable that the linear aggregate to be compressed is an undried linear aggregate. Compressing an undried linear aggregate makes it easier for the linear bodies to bond together at the contact points, resulting in a linear aggregate with high elasticity. The moisture content of the undried linear aggregate is preferably 15 to 40% by weight, and more preferably 15 to 20% by weight. Furthermore, it is preferable that the compression of the undried linear aggregate be done by heating. By heating and compressing the undried linear aggregate, moisture evaporates during compression as the linear bodies come into contact with each other, making it easier for the linear bodies to bond together at the contact points, resulting in a linear aggregate with higher elasticity. The heating temperature during heating compression is preferably 100 to 200°C. The moisture content of the linear bonded structure obtained by heating and compression is preferably 3 to 15% by weight, and more preferably 5 to 10% by weight.

[0043] [Aerosol generating items] The aerosol generating article according to this embodiment comprises the linear body bonding structure according to this embodiment. Because the aerosol generating article according to this embodiment comprises the highly elastic linear body bonding structure according to this embodiment, it can maintain a certain hardness even when the amount of filling is reduced. The term "aerosol generating article" refers to an article that can generate an aerosol by combustion or heating. The aerosol generating article can be, for example, a rod-shaped aerosol generating article in which the linear body bonding structure according to this embodiment is wrapped in a wrapper. An example of an aerosol generating article is a flavor rod included in a flavor inhaler.

[0044] Flavoring rods can be formed by wrapping the linear composite structure according to this embodiment with a wrapper such as wrapping paper to form a cylindrical or prismatic shape. For example, cylindrical or prismatic flavoring rods can be manufactured by wrapping a cylindrical or prismatic linear composite structure directly with a wrapper. Alternatively, cylindrical or prismatic flavoring rods can be manufactured by folding or bundling a sheet-like linear composite structure and wrapping it with a wrapper. When wrapping the linear composite structure according to this embodiment with a wrapper, the linear composite structure according to this embodiment can also be mixed with a plant composition of a different type from the plant material contained in the linear composite structure, and the mixture can be wrapped with a wrapper. Examples of the plant composition include nonwoven fabric materials containing paper, nonwoven fabric materials impregnated with chemical substances, and sheet-like compositions made from plant materials other than tobacco.

[0045] [Flavor suction device, flavor suction system] The flavor inhaler according to this embodiment may include the aerosol generating article according to this embodiment. The flavor inhaler is not particularly limited, but examples include a combustion-type flavor inhaler, a non-combustion heating-type flavor inhaler, and the like.

[0046] An example of a combustion-type flavor inhaler according to this embodiment is shown in Figure 2. As shown in Figure 2, the combustion-type flavor inhaler 10 includes a flavor rod 11 in which a linear body connecting structure 1 according to this embodiment is filled inside a cylindrical wrapper 13, and a filter segment 12 provided adjacent to the flavor rod 11. The flavor rod 11 and the filter segment 12 are connected by a chip paper member 14 wound on the flavor rod 11 and the filter segment 12. The chip paper member 14 may have ventilation holes in a part of its outer circumference. The number of ventilation holes may be one or more, for example, 10 to 40 may be formed. If there are multiple ventilation holes, the ventilation holes can be arranged in a ring in a single row on the outer circumference of the chip paper member 14. Multiple ventilation holes can be arranged at approximately constant intervals. By providing ventilation holes, air is drawn into the filter segment 12 from the ventilation holes when inhaled. By diluting the mainstream smoke with outside air from the ventilation holes, it is possible to design a product with a desired tar value. Examples of this type of combustion-type flavor inhaler include cigarettes.

[0047] The user can enjoy the flavor by igniting the tip of the flavor rod 11 and inhaling through the mouthpiece end of the filter segment 12. In particular, since the combustion-type flavor inhaler 10 is equipped with a flavor rod 11 that includes the linear body connecting structure 1 according to this embodiment, a certain hardness can be maintained even if the amount of filling of the linear body connecting structure 1 is reduced.

[0048] An example of a non-combustion heating type flavor inhaler according to this embodiment is shown in Figure 3. The non-combustion heating type flavor inhaler 20 shown in Figure 3 comprises a flavor rod 21 including a linear body connecting structure according to this embodiment, and a mouthpiece segment 22. The mouthpiece segment 22 comprises a cooling segment 23, a center hole segment 24, and a filter segment 25. During inhalation, the flavor rod 21 is heated, and each component contained in the filling vaporizes, and these are transferred to the mouthpiece segment 22 by inhalation. Then, suction is performed from the end of the filter segment 25.

[0049] The cooling segment 23 can be composed of a cylindrical member 26. The cylindrical member 26 can be, for example, a paper tube made by processing cardboard into a cylindrical shape. The cylindrical member 26 and the mouthpiece lining paper 31, which will be described later, are provided with perforations 27 that penetrate both. Due to the presence of the perforations 27, outside air is introduced into the cooling segment 23 when inhaled. As a result, the aerosol vaporized components generated by the heating of the flavor rod 21 come into contact with the outside air, and their temperature decreases, causing them to liquefy and form an aerosol. The diameter (length across) of the perforations 27 is not particularly limited, but can be, for example, 0.5 to 1.5 mm. The number of perforations 27 is not particularly limited and can be one or two or more. For example, multiple perforations 27 may be provided around the circumference of the cooling segment 23.

[0050] The center hole segment 24 can be composed of a filled layer 28 having a hollow section and an inner plug wrapper 29 covering the filled layer 28. The center hole segment 24 has the function of increasing the strength of the mouthpiece segment 22. The filled layer 28 can be a rod with an inner diameter of φ5.0 to φ1.0 mm, for example, densely filled with cellulose acetate fibers and hardened by adding a plasticizer containing triacetin at a rate of 6 to 20% by mass relative to the mass of cellulose acetate. Because the filled layer 28 has a high fiber filling density, when inhaling, air and aerosols flow only through the hollow section, and hardly any flow occurs inside the filled layer 28. Since the filled layer 28 inside the center hole segment 24 is a fiber filled layer, it feels good to the touch from the outside when in use.

[0051] The configuration of the filter segment 25 is not particularly limited, but it may consist of one or more packed layers. The outside of the packed layers may be wrapped with one or more sheets of wrapping paper. The air permeability resistance per segment of the filter segment 25 can be appropriately changed depending on the amount and material of the filler packed into the filter segment 25. For example, if the filler is cellulose acetate fiber, the air permeability resistance can be increased by increasing the amount of cellulose acetate fiber packed into the filter segment 25. When the filler is cellulose acetate fiber, the packing density of the cellulose acetate fiber is 0.13 to 0.18 g / cm³. 3 It can be. Note that the airflow resistance is a value measured using an airflow resistance meter (product name: SODIMAX, manufactured by SODIM).

[0052] The center hole segment 24 and the filter segment 25 are connected by an outer plug wrapper 30. The outer plug wrapper 30 can be, for example, a cylindrical piece of paper. The flavor rod 21, the cooling segment 23, and the connected center hole segment 24 and filter segment 25 are connected by a mouthpiece lining paper 31. These can be connected, for example, by applying an adhesive such as vinyl acetate adhesive to the inner surface of the mouthpiece lining paper 31, inserting the three segments, and rolling it up.

[0053] The axial length of the non-combustion heating type flavor suction device 20 according to this embodiment, i.e., the horizontal length in Figure 3, is not particularly limited, but is preferably 40 to 90 mm, more preferably 50 to 75 mm, and even more preferably 50 to 60 mm. The circumference of the non-combustion heating type flavor suction device 20 is preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm. For example, an embodiment can be described in which the length of the flavor rod 21 is 20 mm, the length of the cooling segment 23 is 20 mm, the length of the center hole segment 24 is 8 mm, and the length of the filter segment 25 is 7 mm. The lengths of these individual segments can be appropriately changed according to manufacturability, required quality, etc. Furthermore, the center hole segment 24 may be omitted, and only the filter segment 25 may be placed downstream of the cooling segment 23. Since the non-combustion heating type flavor suction device 20 according to this embodiment includes a flavor rod 21 containing the linear body connecting structure according to this embodiment, a certain hardness can be maintained even if the amount of filling of the linear body connecting structure is reduced.

[0054] The non-combustion heating type flavor suction system according to this embodiment may include the non-combustion heating type flavor suction device described above and a heating device for heating the non-combustion heating type flavor suction device. The non-combustion heating type flavor suction system according to this embodiment may have other components besides the non-combustion heating type flavor suction device and the heating device according to this embodiment.

[0055] An example of a non-combustion heating type flavor suction system according to this embodiment is shown in Figure 4. The non-combustion heating type flavor suction system shown in Figure 4 comprises a non-combustion heating type flavor suction device 20 according to this embodiment and a heating device 40 that heats the flavor rod of the non-combustion heating type flavor suction device 20 from the outside. Figure 4(a) shows the state before inserting the non-combustion heating type flavor suction device 20 into the heating device 40, and Figure 4(b) shows the state after inserting the non-combustion heating type flavor suction device 20 into the heating device 40 and heating it. The heating device 40 shown in Figure 4 comprises a body 41, a heater 42, a metal tube 43, a battery unit 44, and a control unit 45. The body 41 has a cylindrical recess 46, and the heater 42 and the metal tube 43 are arranged on the inner side surface of the recess 46 at a position corresponding to the flavor rod of the non-combustion heating type flavor suction device 20 inserted into the recess 46. The heater 42 can be an electrical resistance heater, and power is supplied from the battery unit 44 according to instructions from the temperature control unit 45, causing the heater 42 to heat up. The heat emitted from the heater 42 is transferred to the flavor rod of the non-combustion heating type flavor inhaler 20 through a metal tube 43 with high thermal conductivity.

[0056] In Figure 4(b), although it is a schematic illustration, there is a gap between the outer circumference of the non-combustion heating type flavor inhaler 20 and the inner circumference of the metal tube 43. However, in reality, it is preferable that there is no gap between the outer circumference of the non-combustion heating type flavor inhaler 20 and the inner circumference of the metal tube 43 in order to efficiently transfer heat. Furthermore, the heating device 40 heats the flavor rod of the non-combustion heating type flavor inhaler 20 from the outside, but it may also heat from the inside. If heating from the inside, it is preferable to use a rigid plate-shaped, blade-shaped, or columnar heater instead of the metal tube 43. Examples of such heaters include ceramic heaters in which molybdenum or tungsten is applied to a ceramic substrate.

[0057] The heating temperature of the heating device is not particularly limited, but is preferably 400°C or lower, more preferably 150°C to 400°C, and even more preferably 200°C to 350°C. Note that the heating temperature refers to the temperature of the heater in the heating device.

[0058] The present invention may include the following embodiments.

[0059] [1] comprising at least two linear bodies containing plant material, The number of inflection points per meter in the longitudinal direction of the linear body is 20 or more and less than 400. The linear bodies have a confluence portion where they intertwine, and / or an adhesive portion where they adhere to each other. A linear connecting structure for aerosol-generating articles.

[0060] [2] The linear body connecting structure according to [1], wherein the plant material includes a tobacco material.

[0061] [3] The linear body connecting structure according to [1] or [2], wherein the average width of the linear body is 0.1 to 2 mm.

[0062] [4] A linear body connecting structure according to any one of [1] to [3], comprising a first linear body having a first width and a second linear body having a second width different from the first width.

[0063] [5] A linear joint structure according to any of [1] to [4], wherein the air permeability measured by the following method is 10 CU or more. [Method for measuring air permeability] Measured using a Cerulean PPM1000M air permeability meter, under a differential pressure of 1 kPa, at 1 cm². 2 Air flow rate per minute (cm³) 3 ) is defined as the degree of air permeability, and its unit is cholesta units (CU).

[0064] [6] A linear joint structure as described in any of [1] to [5], having a thickness of 0.1 to 7.0 mm.

[0065] [7] A linear body bonding structure according to any of [1] to [6], wherein the apparent density is 0.5 g / ml or less.

[0066] [8] A linear joint structure as described in any of [1] to [7], wherein the elongation as tensile elongation at break, as measured in accordance with JIS P8113:2006, is 0.5 to 10%.

[0067] [9] A linear body connecting structure according to any one of [1] to [8], wherein the average length of the linear body in the longitudinal direction is 5 to 100 mm.

[0068] An aerosol generating article comprising a linear body connecting structure as described in any of

[10] [1] to [9].

[0069] An aerosol generating article formed by wrapping a linear joint structure described in any of

[11] [1] to [9] with a wrapper to create a cylindrical or prismatic shape.

[0070] An aerosol generating article formed by wrapping a mixture containing a linear body connecting structure described in any of

[12] [1] to [9] and a plant body composition of a different type from the plant material with a wrapper to form a cylindrical or prismatic shape.

[0071]

[13] A linear body connecting structure according to any one of [1] to [9], wherein the linear body has a curled shape.

[0072]

[14] (1) Step 1: Prepare a linear aggregate containing plant material. (2) Step 2 of compressing the linear aggregate, A method for manufacturing a linear body connecting structure according to any one of [1] to [9], comprising:

[0073]

[15] The method according to

[14] , wherein step 1 comprises the step of preparing a linear aggregate having a curled shape.

[0074]

[16] The method according to

[14] or

[15] , wherein step 2 comprises compressing the undried linear aggregate.

[0075]

[17] The method according to

[16] , wherein the moisture content of the undried linear aggregate is 15 to 40% by weight.

[0076]

[18] The method according to

[16] or

[17] , wherein step 2 is heating and compressing the undried linear aggregate.

[0077]

[19] The method according to

[18] , wherein the moisture content of the linear bond structure obtained by heating and compression is 3 to 15% by weight.

[0078]

[20] The above step 1 is A step of preparing a linear aggregate consisting of multiple independent linear bodies by cutting the entire composition containing plant raw materials from one end to the other, or A step of preparing a linear aggregate made of a composition having a partial slit formed by cutting a portion of the composition containing plant raw materials from one end to the other, A method comprising any of

[14] to

[19] .

[0079]

[21] The above step 1 is A step of preparing the linear aggregate by cutting a composition containing plant raw materials while transporting it on a first conveyor, and A step of transferring the linear aggregate to a second conveyor having a slower transport speed than the first conveyor to prepare a linear aggregate having a curled shape. A method according to any of

[14] to

[20] , comprising:

[0080]

[22] The plant material includes tobacco material, Step 1 is a step of preparing the composition, (1A) A step of preparing a paper-making sheet by a method comprising extracting water-soluble components from the tobacco raw material and separating them into an aqueous extract and a fibrous residue, preparing a mixture of the fibrous residue and a reinforcing material and making paper from it, and adding a concentrated solution of the aqueous extract to the paper-making sheet, (1B) A step of preparing a cast sheet by a method comprising mixing the tobacco raw material, water, binder and reinforcing material as necessary to form a mixture, and casting the mixture, (1C) A step of preparing an extruded sheet by a method comprising mixing the tobacco raw material with water, a binder and a reinforcing material as needed to form a mixture, and extruding the mixture from a die, or (1D) A step of preparing a rolled sheet by a method comprising mixing the tobacco raw material with water, a binder and a reinforcing material as needed to form a mixture, and processing this mixture with a plurality of rolling rollers, The method according to

[20] or

[21] , comprising:

[0081] A step of manufacturing a linear joint structure by any of the methods described in

[23]

[14] ~

[22] , A step of manufacturing a rod-shaped aerosol generating article by wrapping the aforementioned linear body connecting structure with a wrapper, A method for producing an aerosol-generating article, including the following:

[0082]

[24] The method according to

[23] , wherein the shape of the aerosol generating article is cylindrical or prismatic. [Explanation of symbols]

[0083] 1 Linear body combination structure 2 linear body 3. Intertwined or bonded portion 4 Inflection points 10. Combustion-type flavor inhaler 11, 21 Flavoring Rods 12, 25 filter segments 13 Rappers 14 Chip paper component 20 Non-combustion heating type flavor inhaler 22 mouthpiece segments 23 Cooling Segments 24 Center Hole Segments 26 Cylindrical member 27 Perforation 28 Filled bed 29 Inner Plug Wrapper 30 Outer Plug Wrapper 31 Mouthpiece Lining Paper 40 Heating device 41 Body 42 Heater 43 Metal tube 44 Battery Units 45 Control Unit 46 recess

Claims

1. It comprises at least two linear bodies containing plant material, The number of inflection points per meter in the longitudinal direction of the linear body is 20 or more and less than 400. The linear bodies have an entangled portion where they intertwine, and / or an adhesive portion where they adhere to each other. A linear connecting structure for aerosol-generating articles.

2. The linear body bonding structure according to claim 1, wherein the plant material includes a tobacco material.

3. The linear body connecting structure according to claim 1 or 2, wherein the average width of the linear body is 0.1 to 2 mm.

4. A linear body connecting structure according to any one of claims 1 to 3, comprising a first linear body having a first width and a second linear body having a second width different from the first width.

5. A linear body connecting structure according to any one of claims 1 to 4, wherein the air permeability measured by the following method is 10 CU or more. [Method for measuring air permeability] Measured using a Cerean PPM1000M air permeability meter, under a differential pressure of 1 kPa, at 1 cm ２ Air flow rate per minute (cm³) ３ The degree of air permeability is defined as ) and its unit is Cholesta units (CU).

6. A linear body connecting structure according to any one of claims 1 to 5, wherein the thickness is 0.1 to 7.0 mm.

7. A linear body bonding structure according to any one of claims 1 to 6, wherein the apparent density is 0.5 g / ml or less.

8. A linear joint structure according to any one of claims 1 to 7, wherein the elongation as tensile fracture elongation, measured in accordance with JIS P8113:2006, is 0.5 to 10%.

9. The linear body connecting structure according to any one of claims 1 to 8, wherein the average length in the longitudinal direction of the linear body is 5 to 100 mm.

10. An aerosol generating article comprising a linear body bonding structure according to any one of claims 1 to 9.

11. An aerosol generating article formed by wrapping a linear body connecting structure according to any one of claims 1 to 9 with a wrapper to create a cylindrical or prismatic shape.

12. An aerosol generating article formed by wrapping a mixture containing a linear body bonding structure according to any one of claims 1 to 9 and a plant body composition of a different type from the plant material with a wrapper to form a cylindrical or prismatic shape.

Images