Aerosol generating article and aerosol generating device

Abstract

An aerosol-generating article according to one embodiment includes a first filter segment disposed at the most upstream side of the aerosol-generating article, a second filter segment disposed downstream from the first filter segment, and a cavity segment disposed between the first filter segment and the second filter segment, and the cavity segment can be filled with medium granules and flavoring granules.

Description

[Technical field]

[0001] The following examples relate to aerosol-generating articles and aerosol-generating devices. [Background technology]

[0002] In recent years, there has been an increasing demand for alternative products that overcome the shortcomings of traditional cigarettes. For example, there has been an increasing demand for devices that generate aerosols by electrically heating cigarette sticks (e.g., cigarette-type electronic cigarettes). As a result, research on electrically heated aerosol generating devices and cigarette sticks (or aerosol generating articles) applied thereto has been actively conducted. For example, Published Patent Application No. 10-2017-0132823 discloses a non-combustion type flavor inhaler, a flavor source unit, and an atomization unit. Summary of the Invention [Problem to be solved by the invention]

[0003] It is an object of one embodiment to provide an aerosol generating article and an aerosol generating device that transfers nicotine by indirect heating of a medium by the aerosol.

[0004] An objective of one embodiment is to improve the taste by increasing the maximum amount of flavoring agent that can be loaded into the aerosol-generating article. [Means for solving the problem]

[0005] An aerosol-generating article according to one embodiment includes a first filter segment disposed at the most upstream side of the aerosol-generating article, a second filter segment disposed downstream from the first filter segment, and a cavity segment disposed between the first filter segment and the second filter segment, and the cavity segment can be filled with medium granules and flavoring granules.

[0006] The ratio of the medium granules to the total granules filled in the cavity segment may be 50% or more.

[0007] The size or density of the medium granules and the flavor granules may be the same.

[0008] The aerosol-generating article may further comprise a filter rod disposed furthest downstream of the aerosol-generating article, the filter rod comprising a cooling segment and a mouthpiece segment.

[0009] The mouthpiece segment may include a flavorant substance.

[0010] The mouthpiece segment includes a TJNS filter, and the TJNS filter can be flavored with the flavorant material.

[0011] The medium granules include a pH adjusting agent, and the pH adjusting agent can be alkaline.

[0012] The flavour granules may be produced by a fluid bed granulation process.

[0013] An aerosol generating device according to one embodiment includes a storage section for storing an aerosol-generating article, an atomization section for generating an aerosol, and a power supply section for transmitting the power required to heat the atomization section, and the aerosol generated by heating from the atomization section of the aerosol generating device passes through the aerosol-generating article, so that the medium and flavoring agent can be transferred to the user's mouth.

[0014] The atomization unit may include a liquid storage tank for storing a liquid composition that generates an aerosol, a liquid transfer means for promoting the transfer of the liquid composition, and a heater for heating the liquid composition.

[0015] The liquid composition may further comprise a flavoring agent.

[0016] The heating temperature of the heater may be 300° C. or less. Effect of the Invention

[0017] An aerosol-generating article and an aerosol-generating device according to one embodiment are capable of transferring nicotine by indirect heating of a medium by the aerosol.

[0018] The aerosol-generating article and aerosol-generating device according to one embodiment can improve the smoking taste by increasing the maximum amount of flavoring agent filled in the aerosol-generating article.

[0019] The effects of the aerosol generating article and aerosol generating device according to one embodiment are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the description below. [Brief description of the drawings]

[0020] [Figure 1A] 1 is a schematic diagram showing the structure of an aerosol-generating article according to one embodiment. FIG. [Figure 1B] FIG. 2 is a schematic diagram showing the structure of an aerosol-generating article according to another embodiment. [Figure 2A] FIG. 2 is a schematic diagram showing a top spray type granulation process among fluidized bed granulation processes. [Figure 2B] FIG. 2 is a schematic diagram showing a bottom spray type granulation process among fluidized bed granulation processes. [Figure 2C] FIG. 2 is a schematic diagram showing a rotor spray type granulation process among fluidized bed granulation processes. [Figure 3A] FIG. 1 is a schematic diagram illustrating an aerosol generating device according to an embodiment. [Figure 3B] FIG. 13 is a schematic diagram of an aerosol generating device according to another embodiment. [Figure 4A] FIG. 1 is a schematic diagram illustrating an aerosol generating system in which an aerosol generating article is housed in an aerosol generating device according to one embodiment. [Figure 4B]FIG. 13 is a schematic diagram showing an aerosol generating system in which an aerosol generating article is housed in an aerosol generating device according to another embodiment. [Diagram 5] 1A to 1C are diagrams for explaining the principle and conditions under which a vortex airflow is generated from an aerosol-generating article according to one embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. However, since various modifications can be made to the embodiments, the scope of the patent application is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, or alternatives to the embodiments are included in the scope of the patent.

[0022] The terms used in the examples are merely used for the purpose of explanation and should not be construed as limiting. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this specification, the terms "include" or "have" and the like specify the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood not to preclude the presence or additional possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0023] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments belong. Terms defined in commonly used dictionaries should be interpreted as meanings consistent with the meanings they have in the context of the relevant art, and unless expressly defined in this application, they should not be interpreted as ideal or overly formal meanings.

[0024] In the description with reference to the accompanying drawings, the same reference numerals are used for the same components regardless of the reference numerals, and the duplicated description thereof will be omitted. When it is determined that the detailed description of the related publicly known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

[0025] Furthermore, in describing components of the embodiments, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are used to distinguish the components from other components, and do not limit the nature, order, or sequence of the components. When a component is described as being "coupled," "coupled," or "connected" to another component, it should be understood that the component is directly coupled or connected to the other component, but that other components are "coupled," "coupled," or "connected" between each component.

[0026] Components included in any of the embodiments and components having common functions will be described using the same names in other embodiments. Unless otherwise specified, the description of any of the embodiments may be applied to the other embodiments, and detailed description will be omitted to the extent that they overlap.

[0027] In the following examples, "humectant" may refer to a substance that can facilitate the formation of visible smoke and / or aerosol. Examples of humectants include, but are not limited to, glycerin (GLY), propylene glycol (PG), ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. In the art, humectant may be used interchangeably with terms such as aerosol formers and wetting agents.

[0028] In the following examples, "aerosol-forming substrate" may refer to a substance capable of forming an aerosol. The aerosol may include a volatile compound. The aerosol-forming substrate may be solid or liquid.

[0029] For example, the solid aerosol-forming substrate may include a solid material based on tobacco raw materials such as tabular tobacco, shredded tobacco, reconstituted tobacco, etc., and the liquid aerosol-forming substrate may include a liquid composition based on nicotine, tobacco extract, and / or various flavoring agents. However, the scope of the present disclosure is not limited to these examples.

[0030] In the following examples, "aerosol generating device" may refer to a device that generates an aerosol using an aerosol-forming substrate to generate an aerosol that can be inhaled directly into the user's lungs through the user's mouth.

[0031] In the following examples, the term "aerosol-generating article" refers to an article that contains a medium and through which the aerosol passes, resulting in the transfer of the medium. A representative example of an aerosol-generating article is a cigarette, but the scope of the present disclosure is not limited thereto.

[0032] In the following examples, "upstream" or "upstream direction" can mean a direction away from the mouth of a user (smoker), and "downstream" or "downstream direction" can mean a direction toward the mouth of a user. The terms upstream and downstream are used to describe the relative positions of elements that make up an aerosol-generating article. For example, in the aerosol-generating article 100 shown in FIG. 3A, the cavity rod 120 is located upstream or in the upstream direction of the filter rod 140, and the filter rod 140 is located downstream or in the downstream direction of the cavity rod 120.

[0033] In the following examples, the term "puff" refers to the inhalation of a user, where inhalation refers to drawing a gas through the user's mouth or nose into the user's oral cavity, nasal cavity, or lungs.

[0034] In the following, various embodiments are described with reference to the accompanying drawings.

[0035] 1A and 1B are schematic diagrams illustrating the structure of an aerosol-generating article 100 according to some embodiments.

[0036] As shown in Figures 1A and 1B, the aerosol-generating article 100 may include a cavity rod 120 and a filter rod 140. The aerosol-generating article 100 may further include a wrapper wrapping the rod. However, Figures 1A and 1B only show components related to the embodiment of the present disclosure, and a person skilled in the art to which the present disclosure pertains will understand that the aerosol-generating article 100 may further include other general components in addition to the components shown in Figures 1A and 1B. Each component of the aerosol-generating article 100 will be described below.

[0037] The cavity rod 120 is a rod that includes a cavity or cavity segment 126 that can be heated to deliver tobacco or flavor components, such as nicotine. As shown, the cavity rod 120 can include a first filter segment 122, a second filter segment 124, and a cavity segment 126 that can be disposed between the first filter segment 122 and the second filter segment 124.

[0038] The first filter segment 122 may be disposed at the most upstream of the aerosol-generating article 100. The first filter segment 122 may function to prevent the medium granules P1 from falling off, and may allow the cavity segment 126 to be disposed at an appropriate position within the aerosol-generating device 200 when the aerosol-generating article 100 is inserted into the aerosol-generating device 200. The first filter segment 122 may also prevent aerosol liquefied during smoking from flowing into the aerosol-generating device 200. Furthermore, the first filter segment 122 may include a paper filter, and the paper material may be disposed in a longitudinal direction to ensure a smooth air flow path, but is not limited thereto.

[0039] The second filter segment 124 may be disposed downstream of the first filter segment 122, and in particular, downstream of the cavity segment 126. The second filter segment 124 may perform aerosol filtering, cooling, and the like in addition to forming a cavity together with the first filter segment 122. The second filter segment 124 may include a paper filter, and the paper material is preferably disposed in a longitudinal direction to ensure a smooth air flow path, but is not limited thereto.

[0040] The cavity segment 126 is a segment with a cavity and can be located between the first filter segment 122 and the second filter segment 124 .

[0041] Also, the cavity segment 126 may be filled with a medium and a flavoring agent. The medium to be filled may be in the form of medium granules P1, reconstituted tobacco, common shredded tobacco, etc., and may preferably be in the form of medium granules P1. The medium granules P1 may be tobacco granules or nicotine granules, but are not limited thereto. The flavoring agent to be filled may be in the form of flavoring agent granules P2, liquid flavoring material, etc., and may preferably be in the form of flavoring agent granules P2. In this case, the flavoring agent may include at least one of, for example, menthol, cis-3-hexenol, linalool, hexanal, eucalyptol, methyl salicylate, guaiacol, orange oil, lemon oil, star anise oil, peppermint oil, spearmint oil, lime oil, and ginger oil.

[0042] The relationship between the medium granules P1 and the flavor granules P2 in the cavity segment 126 will now be described.

[0043] According to an embodiment, the medium granules P1 and the flavor granules P2 can fill up to about 70% of the total volume of the cavity segment 126, and the ratio of the medium granules P1 and the flavor granules P2 filled in the cavity segment 126 can be at least 50% or more, preferably 60% or more, and more preferably 70% or more of the total granules filled. When the medium granules P1 satisfy the above-mentioned filling ratio, a sufficient amount of medium can be transferred to the user only when the user uses the aerosol-generating article 100, and deterioration of the smoking taste due to an excessively high ratio of the flavor granules P2 can be prevented.

[0044] According to an embodiment, the medium granules P1 and the flavor granules P2 may have a difference of 20% or less in size or density from each other, and may preferably be the same as each other. If the size or density of the medium granules P1 and the flavor granules P2 satisfy the above range, the medium granules P1 and the flavor granules P2 may be mixed uniformly when they are filled into the cavity segment 126, and as described below with reference to FIG. 5, a vortex airflow is easily formed in the cavity segment 126 when a user puffs the aerosol generating system 10, so that the medium granules P1 and the flavor granules P2 may be uniformly heated.

[0045] The characteristics of the medium granules P1 and the flavor granules P2 will be described in detail below.

[0046] The medium granules P1 according to an embodiment may include a pH adjuster. The pH adjuster may be a basic salt, such as, but not limited to, potassium carbonate, sodium bicarbonate, calcium oxide, etc. Also, a pH adjuster that generates the least negative odor during puffing may be selected and used. When the pH adjuster is included in the medium granules P1, the pH of the medium granules P1 increases, and thus nicotine can be sufficiently transferred from the medium granules P1 even when the medium is heated to a relatively low temperature. As a result, nicotine can be transferred only by the heat transferred to the medium granules P1 while the hot aerosol generated by the heater 224 of the aerosol generating device 200 heating the cartridge 222 flows along the air flow path to the aerosol-generating article 100 without directly heating the cavity segment 126. The pH adjuster may be mixed together with the medium granules P1 during the production of the medium granules P1 and included in the granules themselves, or may be disposed separately from the medium granules P1.

[0047] According to an embodiment, the medium granules P1 may be manufactured by a compression process. The compression granulation process corresponds to a wet process, and the nicotine transfer rate of the medium granules P1 produced is relatively higher than that of the fluidized bed granulation process. Therefore, when the temperature to which the medium granules P1 are heated is relatively low, it may be more advantageous for the transfer of nicotine to include the medium granules P1 produced by the compression granulation process than the medium granules P1 produced by the fluidized bed granulation process.

[0048] The flavoring granules P2 may or may not contain a pH adjuster. The flavoring granules P2 have a lower temperature at which they are developed than the medium granules P1, and therefore can be fully developed even when heated at a low temperature without necessarily containing a pH adjuster. If the flavoring granules P2 are heated to a temperature that is excessively higher than the temperature at which the flavoring granules P2 are developed, most of the flavoring material may migrate when the user first uses the aerosol-generating article 100, and the aroma of the flavoring granules P2 may not last long. As will be described later with reference to FIG. 4A and FIG. 4B, the aerosol-generating article 100 according to an embodiment is not directly heated by a heater, but the aerosol generated by heating from the atomizing unit 220 of the aerosol generating device 200 passes through the aerosol-generating article 100 in the direction of the arrow to transfer the medium and flavoring material. Therefore, since the temperature to which the flavoring granules P2 are heated is relatively lower in the indirect transfer method by the heated aerosol as described above than in the method in which the aerosol-generating article 100 is directly heated or burned, the flavoring material can be transferred continuously.

[0049] The flavoring granules P2 according to an embodiment may be manufactured by a fluidized bed granulation process. The flavoring granules P2 may be manufactured by coating the medium granules P1 with a flavoring material or layering the flavoring material on a seed material. The fluidized bed granulation process is a process in which a powder material is mixed with heated air in a sealed container 500, the powder flows inside the container, and granules are formed through mixing, granulation, and drying processes. The fluidized bed granulation process may include a top-spraying method, a bottom-spraying method, a rotor-spraying method, and the like. The fluidized bed granulation process is classified into a top-spraying method, a bottom-spraying method, and a rotor-spraying method according to the relationship between the direction in which the liquid binder 510, which acts as an adhesive for bonding the powder 530 together, is sprayed and the direction in which the fluidizing air 520 flows. The top-spraying method is a process in which the direction in which the liquid binder 510 is sprayed and the direction in which the fluidizing air 520 flows are opposite to each other, the bottom-spraying method is a process in which the direction in which the liquid binder 510 is sprayed and the direction in which the fluidizing air 520 flows are the same, and the rotor-spraying method is a process in which the direction in which the liquid binder 510 is sprayed and the direction in which the fluidizing air 520 flows are perpendicular to each other, which are shown in detail in Figures 2A to 2C.

[0050] The configuration of the filter rod 140 will be described in detail below.

[0051] The filter rod 140 is located downstream of the cavity rod 120 and can perform a filtering function on the aerosol. To this end, the filter rod 140 can include a filter material such as paper, cellulose acetate fiber, etc. The filter rod 140 can further include a wrapper that encases the filter material.

[0052] Filter rod 140 can include a cooling segment 142 and a mouthpiece segment 144. The cooling segment 142 can perform a cooling function on the aerosol, and the mouthpiece segment 144 can perform a filtering function on the aerosol.

[0053] Also, the mouthpiece segment 144 may include a flavoring material. For example, a flavoring liquid may be sprayed into the mouthpiece segment 144, or a separate fiber coated with the flavoring liquid may be inserted into the mouthpiece segment 144. Referring to FIG. 1B, the mouthpiece segment 144 may include a flavoring capsule C. The mouthpiece segment 144 may also include a transfer jet nozzle system (TJNS) filter, which is a filter flavored with a flavoring substance, and the flavoring substance may include, for example, at least one of menthol, cis-3-hexenol, linalool, hexanal, eucalyptol, methyl salicylate, guaiacol, orange oil, lemon oil, star anise oil, peppermint oil, spearmint oil, lime oil, and ginger oil.

[0054] In some cases, the filter rod 140 can further include at least one segment that performs another function.

[0055] Such an aerosol-generating article 100 may be a disposable cigarette that is stored in the aerosol-generating device 200 and disposed of after a single use, or a multi-use cigarette that can be used multiple times after a single use.

[0056] 3A and 3B are schematic diagrams of an aerosol generating device according to some embodiments, where Fig. 3A shows a cartridge 222 and a heater 224 arranged in line, and Fig. 3B shows a cartridge 222 and a heater 224 arranged in parallel.

[0057] 3A and 3B, the aerosol generating device 200 according to the present embodiment may include a housing, a storage unit 210, an atomizing unit 220, and a power supply unit 230. The atomizing unit 220 may include a cartridge 222 and a heater 224, and the atomizing unit 220 may generate an aerosol. However, only components related to the present embodiment are shown in FIGS. 3A and 3B, and a person skilled in the art to which the present disclosure belongs will understand that other general components are further included in addition to the components shown in FIGS. 3A and 3B. For example, the aerosol generating device 200 may further include an input module for inputting commands from a user and an output module for outputting information such as the device status and smoking information. Each component of the aerosol generating device 200 will be described below.

[0058] The housing may form the exterior of the aerosol generating device 200. Furthermore, the housing may form a receiving portion 210 for receiving the aerosol generating article 100. It may be preferable for the housing to be realized from a material capable of protecting the internal components.

[0059] Next, the receiving section 210 may be a space capable of receiving the aerosol-generating article 100. The receiving section 210 may include a coupling structure so that the aerosol-generating article 100 is securely coupled to the receiving section 210 without coming off when the aerosol-generating article 100 is received in the receiving section 210. The coupling structure may include, for example, a coupling structure using a restraining fit, a coupling structure using a magnetic material, a coupling structure using an electromagnetic material, etc. Also, the aerosol-generating article 100 received in the receiving section 210 may be in the form of a stick or cigarette that can be replaced after one use, as described below.

[0060] Next, the atomizing unit 220 may further include a liquid storage tank, a liquid transfer means, and a heater. However, without being limited thereto, the atomizing unit 220 may further include other components. In addition, the cartridge 222 may be made detachable from the heater 224, or may be made integral with the heater 224.

[0061] The liquid reservoir can store a liquid composition. The liquid composition can be a liquid containing a tobacco-containing or nicotine-containing substance, or a liquid containing a non-tobacco substance. For example, the liquid composition can include water, a solvent, ethanol, a plant extract (e.g., tobacco extract), a flavoring agent, an aerosol-forming agent, or a vitamin mixture. The flavoring agent can include ingredients that can provide a user with a variety of flavors or tastes. For example, the flavoring agent can be, but is not limited to, menthol, cis-3-hexenol, linalool, hexanal, eucalyptol, methyl salicylate, guaiacol, orange oil, lemon oil, star anise oil, peppermint oil, spearmint oil, lime oil, ginger oil, or a mixture of two or more of these substances. The liquid composition can further include a humectant. The humectant can be, but is not limited to, glycerin (VG), propylene glycol (PG), sorbitol, or mixtures thereof.

[0062] The liquid transfer means can transfer the liquid composition stored in the liquid storage tank to the heater 224. For example, the liquid transfer means can be a wick element such as, but not limited to, cotton fiber, ceramic fiber, glass fiber, porous ceramic, etc.

[0063] Next, the heater 224 can heat the liquid composition stored in the cartridge 222 to form an aerosol. For example, the heater 224 can heat the liquid composition transmitted by the liquid transmission means to form an aerosol. The formed aerosol can be transmitted to the user through the aerosol-generating article. That is, the aerosol formed by the heating of the heater 224 can move along the air flow path of the aerosol-generating article, and the air flow path can be configured so that the aerosol formed by the liquid composition stored in the cartridge can be transmitted to the user through the aerosol-generating article. The heater 224 can be composed of, for example, but is not limited to, a coil, a ceramic, a metal mesh, a conductive filament, and the like. In addition, the heating temperature of the heater 224 can be 300° C. or less, preferably 270° C. or less, and more preferably 200° C. or less. As described below, when the medium granules P1 contain a pH adjuster, the minimum temperature at which nicotine migrates can be lowered, and the heating temperature of the heater 224 can be lowered, thereby forming an aerosol generating system with better electrical efficiency.

[0064] For reference, in the art, the cartridge 222 and the heater 224 may also be referred to by terms such as a cartomizer, an atomizer, or a vaporizer.

[0065] Next, the power supply unit 230 can supply power used to operate the aerosol generating device 200. For example, the power supply unit 230 can supply power so that the heater 224 heats the aerosol generating article. The power supply unit 230 can also supply power necessary for electrical components installed in the aerosol generating device 200, such as a display (not shown), a sensor (not shown), and a motor (not shown), to operate.

[0066] 4A and 4B show an aerosol generation system 10 according to some embodiments, illustrating a state in which an aerosol-generating article 100 is housed in an aerosol generating device 200. Fig. 4A shows the aerosol generation system 10 in which the cartridge 222 and the heater 224 are arranged in line, and Fig. 4B shows the aerosol generation system 10 in which the cartridge 222 and the heater 224 are arranged in parallel.

[0067] As shown in Figures 4A and 4B, in the aerosol generating system 10 according to the present disclosure, the heater 224 of the aerosol generating device 200 heats the liquid composition inside the cartridge 222 to generate an aerosol, and the generated aerosol passes through the aerosol-generating article 100, whereby the medium granules P1 and the flavoring agent granules P2 are indirectly heated by the aerosol, thereby generating nicotine and flavoring substances. As described above, the pH adjuster contained in the medium granules P1 has the effect of lowering the minimum transferable temperature of nicotine, and nicotine can be transferred even when a relatively lower temperature than that at which nicotine is transferred by burning tobacco leaves is transferred to the medium granules P1. Also, as described above, since the flavoring agent granules P2 have a relatively lower temperature of expression than the medium granules P1, the flavoring agent contained in the flavoring agent granules P2 can also be normally transferred by the heated aerosol.

[0068] As described above, the aerosol generating system 10 according to an embodiment indirectly heats the cavity segment 126 of the aerosol generating article 100 including the medium granules P1 and the flavoring agent granules P2, and the aerosol generating system 10 can heat the cavity segment 126 filled with the granules to a lower temperature than an aerosol generating system (hereinafter, referred to as a directly heated electronic cigarette) that directly heats a segment including the medium using a heater, etc. That is, when the medium granules P1 and the flavoring agent granules P2 in the cavity segment 126 are indirectly heated by the aerosol generated from the atomizing unit heated to a temperature of 300° C. or less, preferably 270° C. or less, more preferably 200° C. or less, the flavoring agent granules P2, which are generated at a lower temperature than the medium granules P1, are heated to an excessively high temperature, and the flavoring agent granules P2 can be continuously generated from the start to the end of the puff. Due to the above-mentioned characteristics of the aerosol generation system 10 of one embodiment, the cavity segment 126 can be filled with more flavoring granules P2 compared to a directly heated electronic cigarette, resulting in increased migration and persistence of the flavoring substance, thereby improving the smoking taste.

[0069] The nicotine and flavoring substances thus produced can be delivered along the air flow path (see the direction of the arrows in Figures 4A and 4B) with the aerosol to the user.

[0070] 5 is a diagram showing a state in which a vortex airflow is generated from the aerosol-generating article 100 according to an embodiment. If certain conditions are met, a vortex airflow is generated in the cavity segment 126 when a puff is made, and a phenomenon in which a number of medium granules P1 and flavoring agent granules P2 are mixed and uniformly heated by the generated vortex airflow can occur. An irregular airflow is formed when an airflow flowing in due to a puff meets a number of medium granules P1 and flavoring agent granules P2 moving downstream due to the puff, and thus a vortex airflow can be generated. A number of medium granules P1 and flavoring agent granules P2 can be mixed well and uniformly heated by the generated vortex airflow. In this case, a burnt taste is reduced and a smoking taste is improved.

[0071] In order for a vortex flow to occur, there must be a sufficient amount of empty space in the cavity segment 126, excluding the granules. Experimental results show that the density of the medium granules P1 is approximately 1.2 g / cm 3 It was confirmed that the probability of vortex currents occurring is relatively high in the following cases, and that the probability of vortex currents occurring is relatively high when the diameter of the medium granules P1 is approximately 1.2 mm or less.

[0072] As described above, although the embodiments have been described with reference to limited drawings, those having ordinary skill in the art may apply various technical modifications and variations based on the above. For example, the described techniques may be performed in a different order than described, and / or the components of the described systems, structures, devices, circuits, etc. may be combined or combined in a different manner than described, or may be replaced or substituted by other components or equivalents, and still achieve appropriate results.

[0073] Therefore, other embodiments, other examples, and equivalents to the claims are within the scope of the following claims.

Claims

1. 1. An aerosol-generating article comprising: a first filter segment disposed at a most upstream position of the aerosol-generating article; a second filter segment disposed downstream of the first filter segment; a cavity segment disposed between the first filter segment and the second filter segment; Including, The cavity segments are filled with medium granules and flavor granules; The medium granules and the flavor granules have a size or density difference of 20% or less, and the volume of the cavity segment filled with the medium granules and the flavor granules is 70% or less of the total volume of the cavity segment. Aerosol-generating items.

2. The ratio of the medium granules to the total granules filled in the cavity segment is 50% or more.

2. The aerosol-generating article of claim 1.

3. The size or density of the medium granules and the flavor granules is the same; 2. The aerosol-generating article of claim 1.

4. The aerosol-generating article further includes a filter rod disposed at the most downstream side of the aerosol-generating article, The filter rod includes a cooling segment and a mouthpiece segment.

2. The aerosol-generating article of claim 1.

5. the mouthpiece segment comprises a flavorant material; 5. The aerosol-generating article according to claim 4.

6. the mouthpiece segment comprises a TJNS filter; The TJNS filter is scented with the flavoring material.

6. The aerosol-generating article according to claim 5.

7. The medium granules include a pH adjuster; The pH adjuster is alkaline.

2. The aerosol-generating article of claim 1.

8. A method for producing the aerosol-generating article of claim 1, comprising the steps of: producing the flavor granules by a fluid bed granulation process; A method for producing an aerosol-generating article.

9. An aerosol generating device, comprising: a storage section for storing an aerosol-generating article; An atomizing unit that generates an aerosol; A power supply unit that transmits power required to heat the atomization unit; Including, The aerosol generated by heating from the atomizing section of the aerosol generating device passes through the aerosol generating article according to claim 1, and the medium and the flavoring agent are transferred to the mouth of a user. Aerosol generator.

10. The atomization unit includes: A liquid storage tank for storing a liquid composition for generating an aerosol; A liquid transfer means for facilitating the transfer of the liquid composition; A heater for heating the liquid composition; Including, 10. The aerosol generating device according to claim 9.

11. The liquid composition comprises: Further comprising a flavoring agent, 11. The aerosol generating device according to claim 10.

12. The heating temperature of the heater is 300° C. or less.

11. The aerosol generating device according to claim 10.

Images