Electronic non-smoking tobacco with a flavoring sheet applied

Abstract

The present invention relates to an aerosol-generating article for use with an aerosol-generating device, the aerosol-generating article comprising: a tobacco rod including cavity segments filled with tobacco granules; and a filter rod positioned downstream of the tobacco rod, the tobacco rod including a flavorant.

Description

Technical Field

[0001] The present invention relates to an electronic smokeless tobacco to which a scented sheet is applied.

Background Art

[0002] In recent years, the demand for alternative products that overcome the disadvantages of traditional cigarettes has been increasing. For example, the demand for devices that generate aerosol by electrically heating a cigarette stick (e.g., cigarette-type electronic tobacco) has been increasing. As a result, research on electrically heated aerosol generators and cigarette sticks (or aerosol-generating articles) applied thereto has been actively conducted.

[0003] On the other hand, if no visible smoke is generated during smoking, there is an advantage that the user can enjoy smoking without being restricted by the location or environment. Also, due to such advantages, smokeless tobacco products such as snuff, snus, and chewing tobacco have been developed. However, the exemplified smokeless tobacco products have a disadvantage that they cannot provide a smoking feeling like a combustion-type cigarette or a heated-type cigarette stick.

[0004] On the other hand, in heated smokeless tobacco, since the amount of aerosol that can smooth the transfer of fragrance is insufficient, the transfer of fragrance is not sufficient in the conventionally used TJNS (Trans jet nozzle system) or the fragrance capsule application method. This is because, due to the shortage of aerosol, the designed vanilla is crushed or the desired level of fragrance intensity cannot be transferred.

[0005] In particular, in order to provide a made-to-order smoking experience due to the recent diversification of user preferences, a crushed fragrance capsule is inserted into the filter to provide a fragrance. Such a crushed fragrance capsule contains a fragrance liquid inside, and can provide a general fragrance to the user depending on whether it is crushed, or can also provide an enhanced fragrance. However, when crushed, the fragrance liquid is rapidly expressed, and there is a disadvantage that the fragrance expressiveness decreases towards the latter half of smoking, and there is also a disadvantage that it cannot provide a precise adjustment function for the fragrance intensity. In addition, a filter of TJNS (Trans jet nozzle system) can also be used, but this also has the disadvantage that it cannot provide a precise adjustment function for the fragrance intensity.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] A technical problem to be solved through several embodiments of the present invention is to provide an aerosol generating device having a smokeless function.

[0008] Another technical problem to be solved through several embodiments of the present invention is to provide an aerosol product that can be used together with an aerosol generating device having a smokeless function.

[0009] Another technical problem to be solved through several embodiments of the present invention is to provide an aerosol product that can give a rich fragrance.

[0010] The technical problems of the present invention are not limited to the technical problems mentioned above. Other technical problems not mentioned can be clearly understood by those of ordinary skill in the technical field of the present invention from the following description.

Means for Solving the Problems

[0011] According to a first aspect of the present invention, An aerosol article used together with an aerosol generating device, comprising a snus rod with a cavity segment filled with tobacco granules; and a filter rod located downstream of the tobacco rod, wherein the tobacco rod provides an aerosol article containing a flavorant.

[0012] In a specific example of the present invention, the tobacco rod includes a filter segment and a cavity segment, and the flavorant can be included in any one or more of the filter segment and the cavity segment.

[0013] In a specific example of the present invention, the filter segment includes a first filter segment and a second filter segment, the first filter segment is located downstream of the cavity segment, the second filter segment is located upstream of the cavity segment, and the cavity segment can be formed by the first filter segment and the second filter segment.

[0014] In a specific example of the present invention, the filter rod can include a cooling segment and a mouthpiece segment.

[0015] In a specific example of the present invention, the flavorant is any one or more selected from the group consisting of a flavoring sheet, flavored granules, and a TJNS filter.

[0016] In a specific example of the present invention, the cavity segment can include any one or more of flavored granules and a flavoring sheet.

[0017] In one specific example of the present invention, the filter segment can include any one or more of a TJNS filter and a flavoring sheet.

[0018] In one specific example of the present invention, the aerosol generating device can include a heater unit for externally heating the tobacco rod.

[0019] In one specific example of the present invention, the aerosol generating device can include a heater unit for externally heating the cavity segment.

[0020] In one specific example of the present invention, the aerosol generating device can include a heater unit for heating any one part of the cavity segment; and a first filter segment and a second filter segment in contact with the cavity segment.

Advantages of the Invention

[0021] According to some embodiments of the present invention described above, an aerosol generating article suitable for realizing the smokeless function of an aerosol generating device can be provided. Specifically, the provided aerosol generating article includes a tobacco rod in which a cavity is filled with tobacco granules, but the tobacco granules have significantly less water content and / or aerosol forming agent content compared to tobacco substances such as cut tobacco (e.g., cut leaf tobacco, plate-shaped leaf cut tobacco), plate-shaped leaves, etc., so that the generation of visible smoke can be greatly reduced. Moreover, since the tobacco granules exhibit sufficient taste even at a relatively low temperature compared to other types of tobacco substances, the heating temperature of the aerosol generating device can be set relatively low, and thereby the generation of visible smoke can be further reduced.

[0022] In addition, a flavoring sheet, flavor-containing granules, or a TJNS filter is included in the cavity portion or the filter segment, and by heating this, there is an advantage that the fragrance intensity and fragrance persistence are significantly increased and the off-odor is reduced.

[0023] In addition, by providing a smokeless function, the user can use the aerosol generator without being restricted by the location and environment. As a result, the convenience of the user can be improved.

[0024] In addition, a cavity segment can be formed by filter segments located upstream and downstream of the tobacco rod, and tobacco granules can be filled in the cavity segment. As a result, a tobacco rod capable of minimizing the phenomenon of tobacco granule dropout can be easily manufactured.

[0025] In addition, the filter segment forming the cavity segment of the tobacco rod can be made of a paper filter. In such a case, it is possible to prevent the problem that the physical properties of the filter segment change due to the heating of the heater part.

[0026] In addition, the tobacco rod can be designed so that a swirling airflow is generated inside the cavity segment during puffing. In such a case, the generated swirling airflow heats the tobacco granules while being well mixed, so that a large number of tobacco granules can be uniformly heated and the taste can be further improved.

[0027] The effects according to the technical idea of the present invention are not limited to the effects mentioned above. Other effects not mentioned can be clearly understood by those skilled in the art from the following description.

Brief Description of Drawings

[0028]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Mode for Carrying Out the Invention

[0029] The terms and words used in this specification and the claims should not be construed in a limited sense according to their ordinary or dictionary meanings. The inventor must interpret them in a meaning and concept that conforms to the technical idea of the present invention in accordance with the principle that the inventor can appropriately define the concept of the terms in order to explain his invention in the best way. Therefore, it should be understood that the specific examples described in this specification and the configurations shown in the drawings are only the most preferred specific examples of the present invention and do not represent all of the technical ideas of the present invention. At the time of this application, there may be various equivalents and modifications that can replace them.

[0030] When adding reference numerals to the components of each drawing, it should be noted that for the same components, as much as possible, the same numerals are used even if they are shown on other drawings. Also, when explaining this disclosure, if it is determined that a specific explanation of a related known configuration or function may obscure the gist of the present invention, the detailed explanation thereof will be omitted.

[0031] Unless otherwise specified, all terms (including technical and scientific terms) used in this specification can be used with the meaning commonly understood by those of ordinary skill in the technical field to which this disclosure belongs. Also, terms defined in commonly used dictionaries are not ideally or overly interpreted unless specifically defined otherwise. The terms used in this specification are for the purpose of explaining the examples and are not intended to limit the disclosure. In this specification, the singular form includes the plural form unless specifically mentioned otherwise in the text.

[0032] Also, when describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. can be used. Such terms are for distinguishing the components from other components, and the essence, order, or procedure of the corresponding components are not limited by such terms. When a certain component is described as being "connected", "coupled", or "joined" to another component, it should be understood that the component can be directly connected or joined to the other component, but other components can also be "connected", "coupled", or "joined" between each component.

[0033] As used herein, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, operations, and / or elements.

[0034] Prior to the description of various embodiments according to the present invention, some terms used in the following examples are clarified.

[0035] In an embodiment according to the present invention, "aerosol-forming agent" can mean a substance that can facilitate the formation of visible smoke and / or aerosol. Examples of aerosol-forming agents can include, but are not limited to, glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. In the relevant technical field, aerosol-forming agents can be used interchangeably with terms such as humectants and wetting agents.

[0036] In an embodiment according to the present invention, "aerosol-forming substrate" can mean a substance that can form an aerosol. The aerosol can contain volatile compounds. The aerosol-forming substrate can be solid or liquid.

[0037] For example, the solid aerosol-forming substrate can include solid substances based on tobacco raw materials such as sheet tobacco, cut tobacco, and reconstituted tobacco, and the liquid aerosol-forming substrate can include liquid compositions based on nicotine, tobacco extracts, and / or various flavoring agents. However, the scope of the present invention is not limited to such examples. The aerosol-forming substrate can also further contain an aerosol-forming agent to stably form visible smoke and / or aerosol.

[0038] In an embodiment according to the present invention, "aerosol generating device" can mean a device that generates an aerosol using an aerosol-forming substrate to generate an aerosol that can be directly inhaled into the user's lungs through the user's mouth. Refer to FIG. 1 for an illustration of the aerosol generating device.

[0039] In an embodiment according to the present invention, an "aerosol-generating article" can mean an article capable of generating an aerosol. The aerosol-generating article can include an aerosol-forming substrate. A typical example of an aerosol-generating article can be a cigarette, but the scope of the present invention is not limited thereto.

[0040] In an embodiment according to the present invention, "upstream" or "upstream direction" can mean a direction away from the mouth of the user (smoker), and "downstream" or "downstream direction" can mean a direction closer to the mouth of the user. The terms upstream and downstream can be used to describe the relative positions of the elements constituting the aerosol-generating article. For example, in the aerosol-generating article 2 illustrated in FIG. 2, the tobacco rod 21 is located upstream or in the upstream direction of the filter rod 22, and the filter rod 22 is located downstream or in the downstream direction of the tobacco rod 21.

[0041] In an embodiment according to the present invention, "puff" means an inhalation by the user, and inhalation can mean a situation where the user inhales into the oral cavity, nasal cavity or lungs through the mouth or nose of the user.

[0042] In an embodiment according to the present invention, "longitudinal direction" can mean a direction corresponding to the longitudinal axis of the aerosol-generating article.

[0043] In an embodiment according to the present invention, a "sheet" can mean a thin-layer element having a width and length substantially larger than its thickness. In the art, the term sheet can also be used interchangeably with terms such as web and film.

[0044] In an embodiment according to the present invention, the "flavor sheet" can mean a substance (material) containing a flavoring agent or a fragrance and manufactured in the form of a sheet.

[0045] Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0046] FIG. 1 is an exemplary drawing for explaining an aerosol generating device 1 according to some embodiments of the present invention. In particular, the drawings below FIG. 1 show, as an example, a state in which an aerosol generating article 2 is inserted (accommodated).

[0047] As shown in FIG. 1, the aerosol generating device 1 according to an embodiment of the present invention can include a housing, a heater unit 13, a battery 11, and a control unit 12. However, only the components related to the embodiments of the present invention are shown in FIG. 1. Therefore, it can be understood that a general-purpose component can be further included in addition to the components shown in FIG. 1 by a person skilled in the art to which the present disclosure belongs. For example, the aerosol generating device 1 can further include an input module (e.g., a button, a touchable display, etc.) for inputting commands and the like from a user, and an output module (e.g., an LED, a display, a vibration motor, etc.) for outputting information such as the state of the device and smoking information. Hereinafter, each component of the aerosol generating device 1 will be described.

[0048] The housing according to an embodiment of the present invention can form the appearance of the aerosol generating device 1. Further, the housing can form an accommodation space for accommodating the aerosol generating article 2. The housing is preferably embodied in a material that can protect internal components.

[0049] Next, the heater unit 13 according to the embodiment of the present invention can heat the aerosol generating article 2 accommodated in the accommodation space. Specifically, when the aerosol generating article 2 is accommodated in the accommodation space of the aerosol generating device 1, the heater unit 13 can heat the aerosol generating article 2 with the electric power supplied from the battery 11.

[0050] The heater unit 13 can be configured in various forms and / or manners.

[0051] For example, the heater unit 13 can be configured to include an electrically resistive heating element. For example, the heater unit 13 can include an electrically insulating substrate (e.g., a substrate formed of polyimide) and an electrically conductive track, and can include a heating element that generates heat when an electric current flows through the electrically conductive track. However, the scope of the present invention is not limited to the above-described examples, and any heating element that can be heated to a desired temperature is applicable without limitation. Here, the desired temperature can be preset in the aerosol generating device 1 (e.g., when a temperature profile is stored in advance), or can be set to a desired temperature by the user.

[0052] As another example, the heater unit 13 can be configured to include a heating element that operates in an induction heating manner. Specifically, the heater unit 13 can include an inductor (e.g., an induction coil) for heating the aerosol generating article 2 in an induction heating manner and a susceptor that is inductively heated by the inductor. The susceptor can be located inside or outside the aerosol generating article 2.

[0053] Further, for example, the heater unit 13 can be configured to include a heating element that heats the aerosol generating article 2 internally (hereinafter abbreviated as "internal heating element"), a heating element that heats it externally (hereinafter abbreviated as "external heating element"), or a combination thereof. The internal heating element can be arranged in a form such as tubular, needle-shaped, or rod-shaped and penetrate at least a part of the aerosol generating article 2, and the external heating element can be arranged in a form such as plate-shaped or cylindrical and wrap at least a part of the aerosol generating article 2. However, the scope of the present invention is not limited thereto, and the shape, number, arrangement form, etc. of the heating element can be designed in various ways. To avoid redundant description, a more detailed description of the heating structure of the heater unit 13 will be described later with reference to FIGS. 4 to 5.

[0054] Next, the battery 11 can supply the electric power used for the aerosol generator 1 to operate. For example, the battery 11 can supply electric power so that the heater unit 13 can heat the aerosol generating article 2, and can also supply the electric power necessary for the control unit 12 to operate.

[0055] Also, the battery 11 can supply the electric power necessary for the operation of electrical components such as a display (not shown), a sensor (not shown), and a motor (not shown) installed in the aerosol generator 1.

[0056] Next, the control unit 12 can generally control the operation of the aerosol generator 1. For example, the control unit 12 can control the operations of the heater unit 13 and the battery 11, and can also control the operations of other components included in the aerosol generator 1. The control unit 12 can control the electric power supplied by the battery 11, the heating temperature of the heater unit 13, etc. Also, the control unit 12 can check the state of each component of the aerosol generator 1 and determine whether the aerosol generator 1 is in an operable state.

[0057] The control unit 12 can be implemented by at least one processor. The control unit can also be implemented as an array of a large number of logic gates, or as a combination of a general-purpose microcontroller and a memory storing a program that can be executed by the microcontroller. Also, those skilled in the art of the present disclosure can clearly understand that the control unit 12 can be implemented in other forms of hardware.

[0058] The aerosol generating article 2 can have a structure similar to that of a general combustion-type cigarette. For example, the aerosol generating article 2 can be divided into a first part (e.g., a tobacco rod) containing a tobacco substance (or an aerosol-forming substrate) and a second part (e.g., a filter rod) containing a filter, etc. The entire first part can be inserted into the aerosol generating device 1, and the second part can be exposed to the outside. Alternatively, only a part of the first part can be inserted into the aerosol generating device 1, or the entire first part and a part of the second part can be inserted. The user can smoke while holding the second part in the mouth.

[0059] The aerosol generating article 2 according to an embodiment of the present invention may be an article filled with tobacco granules, and this embodiment will be described in detail later with reference to the drawings below FIG. 2.

[0060] In addition, the aerosol generator 1 according to the embodiment of the present invention has a smokeless function (that is, a function in which visible smoke is not generated during use or a function in which the generation of visible smoke is minimized). Further, the aerosol generating article 2 may be devised to embody the smokeless function. Specifically, the aerosol generating article 2 is an article filled with tobacco granules, and the aerosol generator 1 can be operated to heat the aerosol generating article 2 at a heating temperature of about 270° C. or lower. In such a case, visible smoke is not generated during smoking, or the generation of visible smoke can be minimized. This is because the tobacco granules have significantly less moisture and / or aerosol forming agent content than tobacco substances such as cut tobacco (e.g., leaf tobacco cut tobacco, plate-shaped leaf cut tobacco), plate-shaped leaves, etc., and can reduce the generation of visible smoke. Further, the tobacco granules can exhibit sufficient taste (i.e., nicotine can be sufficiently transferred) even at a heating temperature lower than that of tobacco substances such as cut tobacco, plate-shaped leaves, etc. (e.g., the heating temperature of cut tobacco is usually 270° C. or higher), so that the heating temperature of the heater unit 13 can be lowered, and the generation of visible smoke can be further reduced due to the lower heating temperature. According to this embodiment, since the smokeless function is provided, the user can use the aerosol generator without being restricted by the location and environment, so that the convenience of the user can be greatly improved. This embodiment will be described in more detail later with reference to the drawings below FIG. 6 together with the structure of the aerosol generating article 2.

[0061] FIG. 1 is a drawing for explaining the aerosol generator 1 according to some other embodiments of the present invention.

[0062] The aerosol generating article 2 according to the embodiment of the present invention has a smokeless function. The smokeless mode means a mode in which, although aerosol is generated by the aerosol generator 1, visible smoke is not generated (or a mode in which the generation of visible smoke is minimized). To embody the smokeless mode, the control unit 12 can operate the heater unit 13.

[0063] So far, the aerosol generating device 1 according to some embodiments of the present invention has been described with reference to FIG. 1. Hereinafter, the aerosol generating article 2 according to some embodiments of the present invention will be described with reference to the drawings below FIG. 2.

[0064] FIG. 2 is an exemplary drawing schematically showing the aerosol generating article 2 according to some embodiments of the present invention.

[0065] As shown in FIG. 2, the aerosol generating article 2 can include a filter rod 22 and a tobacco rod 21 in which a cavity is formed. However, only the components related to the embodiments of the present invention are shown in FIG. 2. Therefore, it can be understood that a person of ordinary skill in the technical field to which the present disclosure pertains can further include other general-purpose components in addition to the components shown in FIG. 6. Hereinafter, each component of the aerosol generating article 2 will be described.

[0066] The filter rod 22 is located downstream of the tobacco rod 21 and can perform a filtering function for the aerosol. For this purpose, the filter rod 22 can include a filter material such as paper, cellulose acetate fiber, etc. The filter rod 22 can further include a wrapper that wraps the filter material.

[0067] The filter rod 22 can be manufactured in various shapes. For example, the filter rod 22 may be a cylindrical rod, or may be a tube-shaped rod including a hollow inside. Also, the filter rod 22 may be a recessed rod. If the filter rod 22 is composed of a plurality of segments, at least one of the plurality of segments can also be manufactured in a different shape.

[0068] The filter rod 22 can also be manufactured to generate a fragrance. As an example, a flavoring liquid can be sprayed onto the filter rod 22, or separate fibers coated with the flavoring liquid can be inserted into the interior of the filter rod 22. As another example, the filter rod 22 can include at least one capsule (not shown) containing a fragrance liquid.

[0069] Figure 2 shows, by way of example, that the filter rod 22 is composed of a single segment, but the scope of the present invention is not limited thereto, and the filter rod 22 can also be composed of a plurality of segments. For example, as shown in Figure 3, the filter rod 22 can be composed of a cooling segment 222 that performs a cooling function for the aerosol and a mouthpiece segment 221 that performs a filtering function for the aerosol. Alternatively, in some cases, the filter rod 22 can further include at least one segment that performs other functions.

[0070] For reference, the cooling segment 222 can be manufactured in various forms. For example, the cooling segment 222 can be manufactured in the form of a branched tube, a cellulose acetate filter with a hollow formed therein, a cellulose acetate filter with a plurality of holes, a filter filled with a polymer material or a biodegradable polymer material, etc. However, it is not limited thereto, and as long as it can perform the function of cooling the aerosol, the cooling segment 222 can be manufactured in any form. The polymer material or the biodegradable polymer material may be a woven fabric of polylactic acid (PLA) material, but is not limited thereto.

[0071] Also, the mouthpiece segment 221 may be, for example, a cellulose acetate filter (i.e., a filter made of cellulose acetate fibers), but is not limited thereto. The description of the filter rod 22 described above can also be applied to the mouthpiece segment 221.

[0072] Also, reference will be made to Figure 2 for explanation.

[0073] The tobacco rod 21 can supply tobacco components (or flavor components) such as nicotine by being heated as a tobacco rod including a cavity or cavity segment 212. As shown, the tobacco rod 21 can include a first filter segment 211, a second filter segment 213, and a cavity segment 212 formed by the first filter segment 211 and the second filter segment 213. And the cavity segment 212 can be filled with tobacco granules (214; that is, tobacco substances in granular form). The tobacco rod 21 may further include a wrapper that wraps the rod.

[0074] The first filter segment 211 can be located downstream of the cavity segment 212 as a filter segment forming the cavity segment 212. The first filter segment 211 can further perform functions such as filtration and cooling on the aerosol in addition to the cavity forming function.

[0075] In some embodiments, the first filter segment 211 can include a paper material. In other words, the first filter segment 211 can be composed of a paper filter. For ensuring a smooth air flow path, the paper material is preferably arranged longitudinally. However, it is not limited thereto. According to this embodiment, a tobacco rod 21 suitable for the heated aerosol generating device 1 can be manufactured. Specifically, since cellulose acetate fibers will melt or shrink when heated above a certain temperature, it is difficult to apply them to the tobacco rod part heated by the heater part 13. On the other hand, since the paper material hardly undergoes denaturation by heat, it can be easily applied to the tobacco rod part, and through this, a tobacco rod 21 suitable for the heated aerosol generating device 1 can be manufactured. However, in some other embodiments, the first filter segment 211 can also be composed of a cellulose acetate filter. In such a case, the effect of improving the removal ability of the first filter segment 211 can be achieved.

[0076] Also, in some embodiments, the first filter segment 211 can include a water-resistant or oil-resistant paper material. In such a case, the problem that the smoke components (e.g., moisture, aerosol forming agent components) contained in the aerosol are absorbed while passing through the first filter segment 211 and the visible smoke amount is reduced is greatly alleviated. For example, when the first filter segment 211 includes a general paper material, the above-mentioned smoke components may be absorbed due to the hygroscopicity of the paper material, resulting in a reduction in the visible smoke amount. However, when a water-resistant or oil-resistant paper material is applied, since the absorption of the above-mentioned smoke components hardly occurs, such a problem of reducing the smoke amount can be solved.

[0077] Also, in some embodiments, the suction resistance of the first filter segment 211 is about 50mmH 2 0 / 60mm to 150mmH 2 0 / 60mm, preferably about 50mmH 2 0 / 60mm to 130mmH 2 0 / 60mm, about 50mmH2 0 / 60 mm to 120 mmH 2 0 / 60 mm, approximately 50 mmH 2 0 / 60 mm to 110 mmH 2 0 / 60 mm or approximately 50 mmH 2 0 / 60 mm to 100 mmH 2 It is 0 / 60 mm. Within such a numerical range, appropriate suction can be ensured. Also, due to the appropriate suction, the probability of generating vortex airflow within the cavity segment 212 can be increased, and as a result, the effect that a large number of tobacco particles 214 are uniformly heated can be achieved.

[0078] Next, the second filter segment 213 can be located upstream of the cavity segment 212 as a filter segment forming the cavity segment 212. The second filter segment 213 can further perform a function of preventing the tobacco particles 214 from falling off. Moreover, when the aerosol generating article 2 is inserted into the aerosol generating device 1, the second filter segment 213 can ensure that the cavity segment 212 is disposed at an appropriate position within the aerosol generating device 1. Also, the second filter segment 213 can prevent the tobacco rod 21 from detaching externally and can also prevent the liquefied aerosol from flowing from the tobacco rod 21 into the aerosol generating device 1 during smoking.

[0079] In some embodiments, the second filter segment 213 can include a paper material. In other words, the second filter segment 213 can be composed of a paper filter. For ensuring a smooth airflow path, the paper material is preferably arranged in the longitudinal direction. However, it is not limited thereto. According to this embodiment, a tobacco rod 21 suitable for the heated aerosol generating device 1 can be manufactured. Specifically, when the cellulose acetate fiber comes into contact with the internal heating element, a phenomenon of melting or shrinking may occur, which can accelerate the falling-off phenomenon of the tobacco particles 214. However, the heat-resistant paper material can greatly alleviate such a phenomenon.

[0080] Next, the cavity segment 212 can be positioned between the first filter segment 211 and the second filter segment 213 as a segment with a cavity. That is, the cavity segment 212 can be formed by the filter segment 211 and the second filter segment 213.

[0081] The cavity segment 212 can be manufactured in various ways. As an example, the cavity segment 212 can be manufactured in a form including a tube-shaped structure such as a branch pipe. As another example, the cavity segment 212 can also be manufactured by wrapping the cavity formed by the two filter segments 211 and 213 with a wrapper of an appropriate material. However, the scope of the present invention is not limited thereto, and as long as the tobacco granules 214 can be filled, the cavity segment 212 can be manufactured in any way.

[0082] The length of the cavity segment 212 can be freely selected within about 8 mm to 12 mm, but the scope of the present invention is not limited to such a numerical range.

[0083] As shown in the figure, the cavity segment 212 may be filled with tobacco granules 214. Since the tobacco granules 214 can exhibit sufficient taste even at a lower heating temperature compared to other types of tobacco substances (e.g., cut tobacco of leaf tobacco, sheet-like leaves, etc.), the power consumption of the heater unit 13 can be reduced. Not only that, but the tobacco granules 214 can easily reduce the content of moisture and / or aerosol former compared to other types of tobacco substances (e.g., cut tobacco of leaf tobacco, sheet-like leaves, etc.) (that is, it is easy to manufacture tobacco granules with a low moisture content or a low content of aerosol former), and may be a tobacco substance suitable for implementing the smokeless function of the aerosol generating device 1.

[0084] The diameter, density, filling rate, composition ratio of the constituent substances, heating temperature, etc. of the tobacco granules 214 vary and may change depending on the embodiments.

[0085] In some embodiments, the diameter of the tobacco granules 214 is from about 0.3 mm to 1.2 mm. Within such a numerical range, appropriate hardness and ease of manufacture of the tobacco granules 214 are ensured, and the probability of generating a swirling airflow within the cavity segment 212 may be increased.

[0086] Also, in some embodiments, the density of the tobacco granules 214 is 0.5 g / cm 3 to 1.2 g / cm 3 . Within such a numerical range, appropriate hardness of the tobacco granules 214 is ensured, and the probability of generating a swirling airflow within the cavity segment 212 can be increased.

[0087] Also, in some embodiments, the filling rate of the tobacco granules 214 with respect to the cavity segment 212 is about 80% by volume or less, preferably about 70% by volume, 60% by volume or 50% by volume or less. Within such a numerical range, the probability of generating a swirling airflow within the cavity segment 212 can be increased. Also, the filling rate of the tobacco granules 214 is preferably about 20% by volume, 30% by volume or about 40% by volume or more to ensure an appropriate taste.

[0088] Also, in some embodiments, the tobacco granules 214 can contain about 20% by weight or less of moisture, preferably about 15% by weight, 12% by weight, 10% by weight, 7% by weight or 5% by weight or less of moisture. Within such a numerical range, the generation of visible smoke can be greatly reduced, and the smokeless function of the aerosol generating device 1 can be easily realized. However, in some other embodiments, the tobacco granules 214 can also contain about 20% by weight or more of moisture.

[0089] Also, in some embodiments, the tobacco granules 214 can contain up to about 10% by weight of an aerosol-forming agent, preferably about 7% by weight, 5% by weight, 3% by weight or 1% by weight of the aerosol-forming agent. Alternatively, the tobacco granules 214 may not contain an aerosol-forming agent. Generation of visible smoke may be significantly reduced within such numerical ranges, and the smokeless function of the aerosol generating device 1 can be easily realized. However, in some other embodiments, the tobacco granules 214 can also contain more than about 10% by weight of the aerosol-forming agent.

[0090] Also, in some embodiments, the heating temperature of the tobacco granules 214 is about 270°C, 260°C, 250°C, 240°C or 230°C or less. In other words, the heater unit 13 can heat the tobacco rod 21 at a heating temperature within the exemplified range. Within such numerical ranges, the problem that the tobacco granules 214 are overheated and a burnt taste is developed can be solved. Not only that, but an appropriate taste is ensured, while at the same time the generation of visible smoke is minimized and the smokeless function of the aerosol generating device 1 can be easily realized. As a supplementary explanation, tobacco substances such as cut tobacco and sheet-like leaves do not exhibit a sufficient taste unless heated to about 270°C or higher, whereas the tobacco granules 214 can exhibit a sufficient taste even at a lower temperature, the power consumption of the heater unit 13 can be reduced, and the generation of visible smoke can also be easily suppressed. Also, due to such characteristics, the tobacco granules 214 may be more suitable for realizing the smokeless function of the aerosol generating device 1 compared to other types of tobacco substances.

[0091] On the one hand, although not explicitly shown, the aerosol-generating article 2 can be packaged by at least one wrapper. As an example, the aerosol-generating article 2 can be packaged by one wrapper. As another example, the aerosol-generating article 2 can also be superposed and packaged by two or more wrappers. For example, the tobacco rod 21 can be packaged by the first wrapper, and the filter rod 22 can be packaged by the second wrapper. Then, the tobacco rod 21 and the filter rod 22 packaged by individual wrappers can be combined, and the entire aerosol-generating article 2 can be repackaged by the third wrapper. If each of the tobacco rod 21 or the filter rod 22 is composed of a plurality of segments, each segment can be packaged by an individual wrapper. Then, the entire aerosol-generating article 2 in which the segments packaged by individual wrappers are combined can be repackaged by another wrapper. At least one hole through which external air can flow in or internal gas can flow out can also be formed in the wrapper.

[0092] Some embodiments of the aerosol-generating article 2 according to the present invention have been described with reference to FIGS. 2 and 3 so far. According to the above, an aerosol-generating article 2 filled with tobacco granules 214 can be provided. Such an aerosol-generating article 2 can give the user a smoking feeling and a sense of familiarity that are superior to those of a cartridge-shaped product (i.e., a cartridge product filled with tobacco granules), and can also reduce the manufacturing cost.

[0093] In addition, an aerosol generating article 2 suitable for implementing the smokeless function of the aerosol generating device 1 can be provided. Specifically, the aerosol generating article 2 includes a tobacco rod 21 filled with tobacco granules 214. Since the tobacco granules 214 have a significantly lower content of moisture and / or aerosol forming agent compared to tobacco substances such as cut tobacco (e.g., cut leaf tobacco, cut lamina tobacco), plate-like leaves, etc., the generation of visible smoke can be greatly reduced. Moreover, since the tobacco granules 214 exhibit sufficient taste even at a relatively low temperature compared to other types of tobacco substances, the heating temperature of the aerosol generating device 1 can be set relatively low, and the generation of visible smoke may be reduced due to the lower heating temperature.

[0094] Also, a cavity segment 212 can be formed by filter segments 211 and 213 located upstream and downstream of the tobacco rod 21, and the cavity segment 212 can be filled with tobacco granules 214. Thereby, a tobacco rod 21 in which the phenomenon of dropping of the tobacco granules 214 can be minimized can be easily manufactured.

[0095] Also, the filter segments 211 and 213 can be made of a paper filter. In such a case, it is possible to prevent the problem that the physical properties of the filter segments 211 and 213 are changed by the heating of the heater unit 13.

[0096] On the other hand, the inventor of the present invention has confirmed that when the tobacco rod is manufactured to contain a flavor source, by heating this, the aroma intensity and aroma persistence are significantly increased, and the offensive odor is reduced.

[0097] FIG. 2 is an exemplary drawing for explaining the content in which a cavity segment and a filter segment are formed in the aerosol generating article 2 according to some embodiments of the present invention. For the convenience of understanding, the drawings below FIG. 2 show only the tobacco rod 21 excluding the filter rod 22.

[0098] As shown in FIG. 2, the tobacco rod 21 can contain flavor precursors. Although the flavor precursors are not separately shown in the drawings, they can be any one or more selected from the group consisting of flavoring sheets, granules containing fragrance, and TJNS filters.

[0099] The flavoring sheets according to some embodiments of the present invention can be processed and used in various forms, such as engraved forms, rolling or folding forms. By gradually releasing the fragrance fixed inside when the flavoring sheet is heated, the fragrance persistence can be greatly improved.

[0100] The granules containing fragrance according to some embodiments of the present invention are not particularly limited as long as the granules contain fragrance. For example, extruded granules containing menthol can be used, but it is not limited thereto.

[0101] The TJNS filter according to some embodiments of the present invention is not particularly limited as long as it is an injection method (TJNS) using a nozzle or the like. For example, a monocellulose filter or a tube filter in which a flavor component is injected can be used, but it is not limited thereto.

[0102] In the aerosol generating article 2 according to some embodiments of the present invention, the tobacco rod includes filter segments 211, 213 and cavity segments 212, and a flavor precursor can be included in any one or more of the filter segments and cavity segments. In the aerosol generating article 2 according to some embodiments of the present invention, by including a flavor precursor in any one or more of the filter segments and cavity segments, when heated from the outside of the tobacco rod by the heater unit described later, the transfer of the fragrance contained in the flavor precursor can be increased.

[0103] Specifically, the filter segment includes a first filter segment 213 and a second filter segment 211. The first filter segment 213 is located downstream of the cavity segment 212, and the second filter segment 211 is located upstream of the cavity segment 212. The cavity segment 212 can be formed by the first filter segment 213 and the second filter segment 211. At this time, any one or more fragrance sources selected from the group consisting of a flavoring sheet, granules containing a fragrance, and a TJNS filter can be included in any one or more selected from the group consisting of the first filter segment 213, the second filter segment 211, and the cavity segment 212.

[0104] In the aerosol generating article 2 according to some embodiments of the present invention, the cavity segment 212 can include any one or more of granules containing a fragrance and a flavoring sheet.

[0105] In the aerosol generating article 2 according to some embodiments of the present invention, the first filter segment 213 or the second filter segment 211 can include any one or more of a TJNS filter and a flavoring sheet.

[0106] Above, with reference to FIG. 2, an explanation has been given of how the fragrance source contained in the aerosol generating article is contained in the aerosol generating article. Hereinafter, with reference to FIGS. 4 to 5, the heating structure of the heater unit 13 according to some embodiments of the present invention will be described.

[0107] First, with reference to FIG. 4, the heating structure of the heater unit 13 according to an embodiment of the present invention will be described.

[0108] As shown in FIG. 4, the heater unit 13 according to this embodiment can be configured to include an external heating element 131, and the external heating element 131 can be arranged to heat only the cavity segment 212. For example, the external heating element 131 can be arranged in a form that wraps at least a part of the cavity segment 212. In this case, only the flavoring agent contained in the cavity segment 212 can be heated by the heat of the heater unit 13 to provide a special flavor.

[0109] Also, as shown in FIG. 5, the heater unit 13 according to this embodiment can be configured to include an external heating element 131, and the external heating element 131 can be arranged to heat either one part of the cavity segment 212; and the first filter segment 213 and the second filter segment 211 in contact with the cavity segment 212. For example, the external heating element 131 can be arranged in a form that wraps at least a part of the cavity segment 212 and the filter segments. In this case, outside the cavity segment 212, the first filter segment 213 and the second filter segment 211 in contact with it can be heated, and thereby the flavoring agents contained in the filter segments 211 and 213 can be heated by the heat of the heater unit 13 to provide a flavor.

[0110] Also, in the heating structure of the heater unit 13 of another embodiment according to the present invention, the heater unit 13 can heat the cavity segment 212 by an induction heating method through a susceptor substance in particle form (hereinafter referred to as "susceptor particles"). Specifically, the heater unit 13 can be configured to include an inductor (e.g., induction coil) for induction heating the susceptor substance, and a large number of susceptor particles can be arranged inside the cavity segment 212. In such a case, while a large number of susceptor particles are mixed with the tobacco granules 214 inside the cavity segment 212, the tobacco granules 214 can be heated so that the tobacco granules 214 are uniformly heated.

[0111] There are various ways to place susceptor particles. For example, the susceptor particles can be filled inside the cavity segment 212 together with the tobacco granules 214. As another example, the susceptor particles can also form part of the tobacco granules 214. So to speak, by introducing susceptor particles during the manufacture of the tobacco granules 214, tobacco granules 214 containing susceptor particles can be manufactured.

[0112] In some embodiments, the flavoring sheet can be introduced in a scored form.

[0113] In some other embodiments, as shown in FIG. 6, the flavoring sheet 10 can be introduced in a rolled or folded form. For example, the flavoring sheet 10 can be in an irregular pattern rolled or folded form (see 10-1), a spiral form (see 10-2), a concentric circle form (see 10-3) or a form folded multiple times (see 10-4; e.g., a form folded so as to ensure an air flow path in the longitudinal direction) and introduced into the filter segments 211, 213 and the cavity segment 212. When the flavoring sheet 10 is introduced in the illustrated form, an air flow path can be ensured in the longitudinal direction, ensuring a smooth air flow and an appropriate suction resistance. Also, the contact area between the flavoring sheet 10 and the high-temperature air flow can be increased, and the amount of flavor transfer can also be increased.

[0114] Also, in some other embodiments, the flavoring sheet 10 can be applied (e.g., adhered) to the wrapper of the aerosol generating article. For example, the flavoring sheet 10 can be disposed inside the wrapper of the filter segments 211, 213 and the cavity segment 212. When the wrapper includes a metal foil, the flavoring sheet 10 can be disposed inside the metal foil. Or, the flavoring sheet 10 can also form at least part of the wrapper. For example, the flavoring sheet 10 itself can function as (be utilized as) a wrapper, or a wrapping material manufactured in a form in which the flavoring sheet 10 and the wrapping paper are integrated can be utilized as the wrapper.

[0115] In the above-described embodiment, the flavoring sheet 10 may be processed through a predetermined process. However, its specific processing form is various.

[0116] For example, as shown in FIG. 7, the flavoring sheet 10 is processed so as to be wrinkled or folded in the longitudinal direction (i.e., the MD direction) of the aerosol generating article. For example, the flavoring sheet 10 may be wrinkled or folded by at least one of a crimping process, a pleating process, a folding process, and a gathering process. Specifically, the crimping process is a process in which creep is applied to the sheet surface through the roller pressure and speed difference of crimping equipment, and is divided into a wet process and a dry process. The wet process means a process in which the base paper is wetted with water, softened, crimped, and then undergoes a re-drying process. The dry process means a drying process by two dryers with different mutual temperatures. Those skilled in the art are already familiar with the pleating process, the folding process, and the gathering process, so the description thereof will be omitted. According to this example, through at least one of the illustrated processes, a large number of channels can be formed in the longitudinal direction on the flavoring sheet 10, and a smooth air flow and an appropriate suction resistance can be ensured through the formed channels. Not only that, the contact area between the flavoring sheet 10 and the high-temperature air flow can be increased, and the transfer amount of the fragrance can also be increased.

[0117] The above-mentioned scented sheet 10 can be manufactured through the steps of manufacturing a liquid (e.g., slurry state) sheet composition and drying the manufactured sheet composition. Here, the liquid state includes not only the liquid state but also the state in which a liquid and a solid are mixed (e.g., slurry state). For example, the scented sheet 10 can be manufactured by stretching (casting) the sheet composition onto a predetermined base material and drying it. However, it is not limited to this, and the specific manufacturing method may vary.

[0118] The detailed composition of the sheet composition can be designed in various ways. In some embodiments, a sheet composition can be formed by blending distilled water (water), solvents such as ethanol, polysaccharide substances (or hydrocolloid substances), and fragrances. The scented sheet 10 manufactured from such a sheet composition is excellent in fragrance retention and fragrance persistence, and can greatly enhance the fragrance expression and fragrance sustainability of aerosol products. Hereinafter, each constituent substance of the sheet composition will be described.

[0119] Solvents such as distilled water and ethanol are elements for adjusting the viscosity of the slurry-type sheet composition.

[0120] Next, the polysaccharide substance is a substance that coats and fixes the fragrance, and at the same time, is a sheet-forming agent that forms the sheet. Examples of the polysaccharide substance include cellulose-based substances such as hydroxypropyl methylcellulose (HPMC), methylcellulose (MC), carboxymethylcellulose (CMC), and agar. Since such cellulose-based substances have the property of well absorbing hot air through a phase change when contacting a high-temperature air stream, the scented sheet 10 can be utilized not only as a fragrance-emitting material but also as a cooling material.

[0121] In some embodiments, the sheet composition can include modified cellulose among various polysaccharide substances. Here, "modified cellulose" can mean cellulose in which specific functional groups are substituted within the molecular structure. Examples of modified cellulose can include, but are not limited to, HPMC, MC, CMC, and EC. For example, HPMC can have grades in the range of about 4 to 40,000 depending on the ratio of substituted hydroxypropyl groups and methyl groups (or methoxy groups) and the molecular weight. The viscosity of the modified cellulose can be determined by the grade. More specifically, the physicochemical properties of HPMC are related to the ratio of methoxy groups, the ratio of hydroxypropyl groups, and the molecular weight. According to the United States Pharmacopeia (USP), the types of HPMC can be classified into HPMC1828, HPMC2208, HPMC2906, and HPMC2910, etc., according to the ratio of methoxy groups and hydroxypropyl groups. Here, the first two numbers can mean the ratio of methoxy groups, and the last two numbers can mean the ratio of hydroxypropyl groups. Based on the continuous experimental results of the inventors, the perfumed sheet 10 produced from the sheet composition containing modified cellulose was confirmed to be excellent in the physical properties of the sheet and the perfume retention amount.

[0122] Next, examples of flavors include menthol, nicotine, nicotine salts, tobacco leaf extracts, tobacco leaf extracts containing nicotine, natural plant flavors (e.g., cinnamon, sage, herbs, chamomile, hay, phyllanthus emblica, cloves, lavender, cardamom, lilac, nux vomica, bell gomot, geranium, honey essence, rose oil, lemon, orange, cassia, celery, jasmine, ginger, coriander, vanilla extract, spearmint, peppermint, casia, coffee, celery, cascarilla, sandalwood, cocoa, ylang-ylang, fennel, anise, licorice, saint-john's-bread, persimmon extract, peach extract, etc.), saccharides (e.g., glucose, fructose, isomerized sugar, caramel, etc.), cocoa streams (powders, extracts, etc.), esters (e.g., isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, etc.), ketones (e.g., menthone, ionone, damasconone, ethyl maltol, etc.), alcohols (e.g., geraniol, linalool, anethole, eugenol, etc.), aldehydes (e.g., vanillin, benzaldehyde, anisaldehyde, etc.), lactones (e.g., γ-undecalactone, γ-nonalactone, etc.), animal flavors (e.g., musk, ambergris, civet, castoreum, etc.), hydrocarbons (e.g., limonene, pinene, etc.). The flavors may be used in solid form or may be dissolved or dispersed in a suitable solvent, such as propylene glycol, ethanol, benzyl alcohol, triethyl citrate. Also, flavors that are easily dispersed in the solvent by the addition of an emulsifier, such as hydrophobic flavors or oil-soluble flavors, can be used. These flavors can be used alone or in mixtures. However, the scope of the present invention is not limited by the foregoing examples.

[0123] In some embodiments, a fragrance having a melting point of about 80°C or lower can be used. In such a case, when the flavoring sheet 10 comes into contact with an air stream at 80°C or higher, the fragrance further absorbs heat while undergoing a phase change, so that the cooling performance of the flavoring sheet 10 can be further improved. Considering that the temperature of a generally heated aerosol is 80°C or higher, the use of such a fragrance can effectively enhance the cooling performance of most aerosol-generating articles. Moreover, since the phase-changed fragrance is easily volatilized, the fragrance expressiveness of the aerosol-generating article can also be enhanced. An example of a fragrance having a melting point of about 80°C or lower can be menthol, but is not limited thereto.

[0124] On the other hand, in some embodiments, the sheet composition can further contain LM-pectin (low methoxyl pectin). LM-pectin is a low-ester pectin or low-methoxyl pectin with relatively little esterification, and specifically can mean pectin containing less than about 50% carboxyl groups in its molecular structure. Since LM-pectin does not gel upon cooling unlike carrageenan, it can lower the viscosity of the slurry-type sheet composition (e.g., to about 600 cp to 800 cp). At the same time, it is possible to manufacture a slurry-type sheet composition without an emulsifier, thus being free from safety problems caused by emulsifiers.

[0125] LM-pectin can contain less than about 50%, less than about 40%, less than about 30%, less than about 20%, or less than about 10% carboxyl groups in its molecular structure. The lower the content of carboxyl groups in the molecular structure of LM-pectin, the lower the viscosity of the slurry containing LM-pectin.

[0126] Also, in some embodiments, the sheet composition can further include a bulking agent. The bulking agent is a substance that increases the total mass of components other than distilled water (i.e., the mass of the building), increases the volume of the scented sheet 10 to be produced, and does not affect the original function of the scented sheet 10. Specifically, the bulking agent can have the property of increasing the volume of the scented sheet 10 and not substantially increasing the viscosity of the slurry while not adversely affecting the fragrance retention function of the scented sheet 10. Preferably, the bulking agent is starch, modified starch, or starch hydrolyzate. However, it is not limited thereto.

[0127] Modified starches include acetic starch, oxidized starch, hydroxypropyl phosphate distarch, hydroxypropyl starch, distarch phosphate, monostarch phosphate, phosphorylated distarch phosphate, etc.

[0128] The starch hydrolyzate refers to a substance obtained by a process including a step of hydrolyzing starch. The starch hydrolyzate can include, for example, a substance directly obtained by hydrolyzing starch (i.e., dextrin), or a substance obtained by hydrolyzing starch after heat treatment (i.e., resistant dextrin). The bulking agent may be, for example, dextrin, and more specifically, cyclodextrin.

[0129] The starch hydrolyzate generally has a DE value in the range of about 2 to about 40, preferably a starch hydrolyzate having a DE value in the range of about 2 to about 20. As the starch hydrolyzate having a DE value in the range of about 2 to about 20, for example, Paine Index #100 (Matsutani Chemical Industry Co., Ltd.), Pine Fiber (Matsutani Chemical Industry Co., Ltd.), TK-16 (Matsutani Chemical Industry Co., Ltd.) can be utilized.

[0130] Here, "DE" is an abbreviation for dextrose equivalent, and the DE value indicates the degree of hydrolysis of starch, that is, the dextrose equivalent of starch. The DE value in the present disclosure is a value measured by the Willstatter-Schudel method. The properties of the hydrolyzed starch (starch hydrolyzate), such as the molecular weight of the starch hydrolyzate and the arrangement of sugar molecules constituting the starch hydrolyzate, do not remain constant for each molecule of the starch hydrolyzate, but exist with a certain distribution or variation. Due to the distribution and variation of the properties of the starch hydrolyzate, or the difference in the cut sections, etc., the starch hydrolyzate can exhibit different physical property characteristics (for example, DE value) for each molecule. Thus, the starch hydrolyzate is a collection of molecules showing different physical property characteristics, but the measurement result (that is, the DE value) by the Willstatter-Schudel method is treated as a representative value indicating the degree of hydrolysis of starch.

[0131] Preferably, the starch hydrolyzate can be selected from the group consisting of dextrin having a DE value of about 2 to about 5, resistant dextrin having a DE value of about 10 to about 15, and mixtures thereof. As the dextrin having a DE value of about 2 to about 5, for example, Paine Index #100 (Matsutani Chemical Industry Co., Ltd.) can be utilized. As the resistant dextrin having a DE value of about 10 to about 15, for example, Paine Fiber (Matsutani Chemical Industry Co., Ltd.) can be utilized.

[0132] Also, in some embodiments, the sheet composition can further include a plasticizer. The plasticizer can improve the physical properties of the sheet by imparting appropriate flexibility to the flavored sheet 10. The plasticizer can include, for example, at least one of glycerin and propylene glycol, but is not limited thereto.

[0133] In some embodiments, the sheet composition may further contain an emulsifier. The emulsifier can increase the fragrance retention of the scented sheet 10 by enabling better mixing of a highly fat-soluble fragrance and a water-soluble polysaccharide substance. Examples of the emulsifier include, but are not limited to, lecithin.

[0134] On the other hand, the scented sheet 10 produced from the above-described sheet composition can have various content ratios (composition ratios).

[0135] In some embodiments, the scented sheet 10 can contain about 20 to 60 parts by weight of a polysaccharide substance and about 10 to 50 parts by weight of a fragrance based on 100 parts by weight in total. Of course, the scented sheet 10 can also further contain an appropriate amount of moisture. The scented sheet 10 configured in this way has been confirmed to greatly enhance the fragrance expressiveness, fragrance persistence, and cooling performance of the aerosol product.

[0136] In some embodiments, the scented sheet 10 can contain about 2 to about 15 parts by weight of moisture, about 25 to about 90 parts by weight of modified cellulose, and about 0.1 to about 60 parts by weight of a fragrance based on 100 parts by weight in total.

[0137] In some embodiments, the scented sheet 10 can contain about 2 to about 15 parts by weight of moisture, about 1 to about 60 parts by weight of a polysaccharide substance, about 1 to about 60 parts by weight of LM-pectin, and about 0.1 to about 60 parts by weight of a fragrance based on 100 parts by weight in total.

[0138] In some embodiments, the plasticizer can be included in an amount of about 0.1 to about 15 parts by weight, preferably about 1 to 10 parts by weight, based on 100 parts by weight of the entire flavor sheet 10. For example, the flavor sheet 10 can include about 20 to 60 parts by weight of a polysaccharide substance, about 10 to 50 parts by weight of a fragrance, and about 1 to 10 parts by weight of a plasticizer, based on 100 parts by weight in total. A sheet having appropriate flexibility (physical properties) can be formed within such a numerical range, and processing (e.g., crimping, rolling, folding, etc.) of the flavor sheet 10 is easy and the workability can be improved. For example, when the amount of the plasticizer added is very small, the flexibility of the sheet may decrease and it may be easily damaged during the process. When the amount of the plasticizer added is very large, the sheet may not be well formed.

[0139] Hereinafter, preferred embodiments are presented to facilitate understanding of the present invention. However, the following embodiments are provided only to more easily understand the present invention, and the present invention is not limited thereto.

[0140] Examples 1 to 4 and Comparative Example 1: Production of an aerosol generating device [Example 1] A tobacco rod was prepared by mixing a flavor sheet with fluidized bed tobacco granules (the weight ratio of the granules to the flavor sheet was 1:1) to form a cavity segment, and a first filter segment and a second filter segment were formed at both ends of the cavity segment. At this time, the first filter segment and the second filter segment were further added with a flavor liquid of the same type as the flavor sheet by an injection method (TJNS method). A filter rod was formed on one end face of the tobacco rod to produce a smokeless tobacco.

[0141] The smokeless tobacco was inserted into an aerosol generating device including a heater unit capable of heating the cavity segment, the first filter segment, and the second filter segment.

[0142] [Example 2] Tobacco was produced in the same manner as in Example 1, except that no flavoring liquid was added to the first filter segment.

[0143] [Example 3] Tobacco was produced in the same manner as in Example 1, except that no flavoring liquid was added to the second filter segment.

[0144] [Example 4] Tobacco was produced in the same manner as in Example 1, except that no flavoring liquid was added to the first filter segment and the second filter segment.

[0145] [Comparative Example 1] Tobacco was produced in the same manner as in Example 1, except that a cavity segment not mixed with a flavoring sheet was used.

[0146] Experimental Example 1: Results of Sensory Evaluation Using the aerosol generating devices produced through Examples 1 to 4 and Comparative Example 1 above, a quantitative evaluation (blind test) was conducted on 5 trained sensory evaluation panelists, and scores were given according to the 7-point scale method. The average value is shown in Table 1 below.

Table 1

Explanation of Reference Numerals

[0147] 1: Aerosol generating device 2: Aerosol generating article 10: Flavoring sheet 11: Battery 12: Control Unit 13: Heater Unit 131: External Heating Element 21: Tobacco Rod 22: Filter Rod 211: First Filter Segment 212: Cavity Segment 213: Second Filter Segment 214: Tobacco Granules

Claims

1. An aerosol generating article used together with an aerosol generating device, comprising: a tobacco rod including a cavity segment filled with tobacco granules; and a filter rod located downstream of the tobacco rod, wherein the tobacco rod contains a flavorant, the flavorant includes at least a flavoring sheet, the flavoring sheet is manufactured from a sheet composition formed by blending modified cellulose and a fragrance, and the cavity segment includes the flavoring sheet mixed with the tobacco granules. An aerosol generating article.

2. The tobacco rod includes a filter segment and a cavity segment, The aerosol generating article according to claim 1, wherein one or more of the filter segment and the cavity segment contain a flavorant.

3. The filter segment includes a first filter segment and a second filter segment, The first filter segment is located downstream of the cavity segment, The second filter segment is located upstream of the cavity segment, The aerosol generating article according to claim 2, wherein the cavity segment is formed by the first filter segment and the second filter segment.

4. The aerosol generating article according to claim 1, wherein the filter rod includes a cooling segment and a mouthpiece segment.

5. The aerosol generating article according to any one of claims 1 to 4, wherein the flavorant further includes granules containing a fragrance and / or a TJNS filter injected with a flavor component.

6. The aerosol generating article according to claim 2 or claim 3, wherein the cavity segment further includes granules containing a fragrance.

7. The filter segment The aerosol generating article according to claim 2, including one or more of a TJNS filter and a flavoring sheet.

8. One or more of the first filter segment and the second filter segment The aerosol generating article according to claim 3, including one or more of a TJNS filter and a flavoring sheet.

9. The aerosol generating device The aerosol generating article according to any one of claims 1 to 8, including a heater unit for externally heating the tobacco rod.

10. The aerosol generating device The aerosol generating article according to claim 2 or claim 3, comprising a heater unit for externally heating the cavity segment.

11. The aerosol generating device is The aerosol generating article according to claim 3, comprising a heater unit for heating any one part among the cavity segment, the first filter segment in contact with the cavity segment, and the second filter segment.

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