Aerosol-generating article and aerosol-generating system comprising same

Abstract

This aerosol-generating article comprises: a tobacco rod containing an aerosol-generating material; a cooling rod, which is disposed downstream of the tobacco rod and includes a cavity; and a filter rod containing a volatile flavoring agent. The filter rod comprises: a first filter part connected to the upstream side of the tobacco rod; and a second filter part disposed between the tobacco rod and the cooling rod, wherein the first amount of the volatile flavoring agent contained in the first filter part is greater than the second amount of the volatile flavoring agent contained in the second filter part.

Description

Aerosol generating articles and aerosol generating systems containing the same

[0001] Embodiments relate to an aerosol generating article and an aerosol generating system comprising the same that can increase the amount of volatile flavorant delivered to a user.

[0002] Recently, there has been a growing demand for alternative methods that overcome the shortcomings of conventional cigarettes. For example, there is a growing demand for systems that generate aerosol by heating a cigarette (or "aerosol-generating article") using an aerosol-generating device, rather than by burning the cigarette to produce the aerosol.

[0003] The aerosol-generating article may include a flavoring agent that imparts a flavor sensation to the user. The flavoring agent may be carried by the aerosol passing through the aerosol-generating article and delivered to the user.

[0004] Embodiments of the present disclosure provide an aerosol generating article and an aerosol generating system comprising the same that can increase the amount of volatile flavorant delivered to a user.

[0005] Additionally, embodiments of the present disclosure provide an aerosol generating article and an aerosol generating system including the same that can reduce the possibility of leakage of a volatile flavorant.

[0006] The problems to be solved through the embodiments of the present disclosure are not limited to the problems described above, and problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the embodiments belong from this specification and the attached drawings.

[0007] An aerosol generating article according to one embodiment may include a tobacco rod comprising an aerosol generating material; a cooling rod positioned downstream of the tobacco rod and including a hollow portion; and a filter rod comprising a volatile flavorant. The filter rod may include a first filter portion connected upstream of the tobacco rod, and a second filter portion positioned between the tobacco rod and the cooling rod. A first content of the volatile flavorant included in the first filter portion may be greater than a second content of the volatile flavorant included in the second filter portion.

[0008] An aerosol generating system according to one embodiment may include: an aerosol generating article according to one embodiment; a cartridge having a receiving portion for receiving the aerosol generating article, a chamber communicating with the receiving portion, a storage portion for storing an aerosol generating substance and connected to the chamber, and a heating portion disposed in the chamber for receiving and heating the aerosol generating substance; and an aerosol generating device body having a battery for supplying power to the heating portion of the cartridge, and a control portion for controlling power supplied from the battery to the heating portion, to which the cartridge is detachably coupled.

[0009] According to various embodiments of the present disclosure, the amount of volatile flavoring agent delivered to a user can be increased, thereby improving the flavor sensation felt by the user.

[0010] Additionally, the possibility of leakage of volatile flavoring agents may be reduced, thereby improving the cleanliness and ease of use of the aerosol generation system.

[0011] The effects of the embodiments are not limited to the effects described above, and effects not mentioned can be clearly understood by a person having ordinary skill in the art to which the embodiments belong from this specification and the attached drawings.

[0012] FIG. 1 is a perspective view of an aerosol generating article according to one embodiment.

[0013] Figure 2 is a perspective view showing a comparative example of an aerosol generating article.

[0014] FIG. 3 is a perspective view of an aerosol generating device and an aerosol generating article inserted therein according to one embodiment.

[0015] FIG. 4 is a schematic front view of an aerosol generating device and an aerosol generating article inserted therein according to one embodiment.

[0016] The terms used in the examples are selected from widely used, current terms, taking into account the functions of the present invention. However, these terms may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Furthermore, in certain cases, the applicant may arbitrarily select terms, and in such cases, their meanings will be described in detail in the description of the relevant invention. Therefore, the terms used in the present invention should be defined not simply based on their names, but based on their meanings and the overall content of the present invention.

[0017] When a part of the specification is said to "include" a component, this does not exclude other components, but rather implies the inclusion of other components, unless otherwise specifically stated. Furthermore, terms such as "-unit" and "-module" used in the specification refer to a unit that processes at least one function or operation, which may be implemented in hardware, software, or a combination of hardware and software.

[0018] As used herein, when an expression such as "at least one" precedes an array of elements, it modifies the entire array of elements, not just each individual element. For example, the expression "at least one of a, b, and c" should be interpreted to include a, b, c, or a and b, a and c, b and c, or a and b and c.

[0019] In one embodiment, the aerosol generating device may be a device that generates an aerosol by electrically heating a cigarette accommodated in an internal space.

[0020] The aerosol generating device may include a heater. In one embodiment, the heater may be an electrically resistive heater. For example, the heater may include an electrically conductive track, and the heater may be heated when current flows through the electrically conductive track.

[0021] The heater may include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element or a rod-shaped heating element, and may heat the inside or outside of the cigarette depending on the shape of the heating element.

[0022] The cigarette may include a tobacco rod and a filter rod. The tobacco rod may be made of a sheet, a strand, or a tobacco sheet cut into small pieces. Additionally, the tobacco rod may be surrounded by a heat-conducting material. For example, the heat-conducting material may be, but is not limited to, a metal foil such as aluminum foil.

[0023] The filter rod may be a cellulose acetate filter. The filter rod may be composed of at least one segment. For example, the filter rod may include a first segment that cools the aerosol and a second segment that filters a predetermined component contained within the aerosol.

[0024] In another embodiment, the aerosol generating device may be a device that generates an aerosol using a cartridge containing an aerosol generating material.

[0025] An aerosol generating device may include a cartridge containing an aerosol generating substance and a body supporting the cartridge. The cartridge may be detachably coupled to the body, but is not limited thereto. The cartridge may be formed or assembled integrally with the body, and may be secured so as not to be detached by a user. The cartridge may be mounted to the body while containing the aerosol generating substance therein. However, this is not limited thereto, and the aerosol generating substance may be injected into the cartridge while the cartridge is coupled to the body.

[0026] The cartridge may contain an aerosol-generating substance in any one of a variety of states, such as a liquid state, a solid state, a gaseous state, or a gel state. The aerosol-generating substance may comprise a liquid composition. For example, the liquid composition may be a liquid comprising a tobacco-containing material including volatile tobacco flavoring components, or may be a liquid comprising a non-tobacco material.

[0027] The cartridge can be operated by an electric signal or wireless signal transmitted from the main body, thereby converting the phase of an aerosol-generating substance inside the cartridge into a gaseous phase to generate an aerosol. The aerosol may refer to a gas that is a mixture of vaporized particles generated from the aerosol-generating substance and air.

[0028] In another embodiment, the aerosol generating device may heat a liquid composition to generate an aerosol, and the generated aerosol may be delivered to the user through a cigarette. That is, the aerosol generated from the liquid composition may travel along an airflow path of the aerosol generating device, and the airflow path may be configured such that the aerosol may pass through the cigarette and be delivered to the user.

[0029] In another embodiment, the aerosol generating device may be a device that generates an aerosol from an aerosol generating material using an ultrasonic vibration method. In this case, the ultrasonic vibration method may refer to a method of generating an aerosol by atomizing the aerosol generating material with ultrasonic vibrations generated by a vibrator.

[0030] The aerosol generating device may include a vibrator, which may generate short-cycle vibrations to atomize the aerosol generating material. The vibrations generated by the vibrator may be ultrasonic vibrations, and the frequency range of the ultrasonic vibrations may be, but is not limited to, about 100 kHz to about 3.5 MHz.

[0031] The aerosol generating device may further include a wick that absorbs the aerosol generating material. For example, the wick may be positioned to surround at least a portion of the vibrator or may be positioned to contact at least a portion of the vibrator.

[0032] When a voltage (e.g., an alternating current) is applied to the vibrator, heat and / or ultrasonic vibrations may be generated from the vibrator, and the heat and / or ultrasonic vibrations generated from the vibrator may be transmitted to an aerosol-generating substance absorbed in the wick. The aerosol-generating substance absorbed in the wick may be converted into a gaseous phase by the heat and / or ultrasonic vibrations transmitted from the vibrator, thereby generating an aerosol.

[0033] For example, the viscosity of an aerosol-generating substance absorbed into a wick may be lowered by heat generated from a vibrator, and an aerosol may be generated by fine particles of an aerosol-generating substance with a lowered viscosity due to ultrasonic vibration generated from a vibrator, but is not limited thereto.

[0034] In another embodiment, the aerosol generating device may be a device that generates an aerosol by heating an aerosol generating article accommodated in the aerosol generating device by induction heating.

[0035] An aerosol generating device may include a susceptor and a coil. In one embodiment, the coil may apply a magnetic field to the susceptor. As power is supplied to the coil from the aerosol generating device, a magnetic field may be formed within the coil. In one embodiment, the susceptor may be a magnetic material that generates heat due to an external magnetic field. When the susceptor is positioned within the coil and a magnetic field is applied, the susceptor generates heat, thereby heating the aerosol generating article. Additionally, optionally, the susceptor may be positioned within the aerosol generating article.

[0036] In another embodiment, the aerosol generating device may further comprise a cradle.

[0037] The aerosol generator can be configured as a system with a separate cradle. For example, the cradle can charge the aerosol generator's battery. Alternatively, the heater can be heated while the cradle and aerosol generator are combined.

[0038] Below, embodiments of the present disclosure are described in detail with reference to the attached drawings so that those skilled in the art can easily implement them. The present disclosure may be implemented in a form that can be implemented in the aerosol generating devices of the various embodiments described above, or may be implemented in various different forms and is not limited to the embodiments described herein.

[0039] FIG. 1 is a perspective view of an aerosol generating article according to one embodiment.

[0040] Referring to FIG. 1, the aerosol generating article (5) may include a tobacco rod (51), a filter rod (52), and a cooling rod (53). The filter rod (52) may include a first filter section (521), a second filter section (522), and a third filter section (523).

[0041] The tobacco rod (51), the filter rod (52), and the cooling rod (53) may be arranged along the longitudinal direction of the aerosol generating article (5). Specifically, the first filter portion (521), the tobacco rod (51), the second filter portion (522), the cooling rod (53), and the third filter portion (523) may be arranged sequentially along the longitudinal direction of the aerosol generating article (5).

[0042] The tobacco rod (51) may include an aerosol-generating material. The tobacco rod (51) may include an aerosol-generating material including nicotine. In addition, the tobacco rod (51) may include a tobacco material. The tobacco material may take the form of, but is not limited to, tobacco strands, tobacco particles, tobacco sheets, tobacco beads, tobacco granules, tobacco powder, or tobacco extract.

[0043] In one embodiment, the tobacco rod (51) may comprise a plurality of tobacco granules. The tobacco granules may be particles having a diameter of about 100 μm to about 2,000 μm. The tobacco granules may be manufactured by extruding a mixture of tobacco leaf powder, a pH regulator, and a solvent.

[0044] The pH adjuster can convert the nicotine salt present in the tobacco rod (51) in a salt state into freebase nicotine by alkalizing the tobacco rod (51).

[0045] Freebase nicotine can refer to neutral nicotine, with no protons attached. For example, if a strong base such as ammonia is added to a positively charged nicotine salt, the strong base will convert into a cation, and the nicotine salt can become neutral, freebase nicotine.

[0046] In nature, nicotine exists as nicotine salts such as nicotine malate and nicotine citrate. Since nicotine salts have relatively high boiling points, they must be heated to a temperature of at least 120°C to generate nicotine vapor.

[0047] In contrast, freebase nicotine has a relatively low boiling point and high volatility compared to nicotine salts. Therefore, if the tobacco medium contains a high amount of freebase nicotine, nicotine vapor can be generated under relatively low heating temperatures.

[0048] Accordingly, as the hot aerosol vapor generated in the aerosol generating device described later passes through the tobacco rod (51), nicotine vapor can be generated from the tobacco rod (51) containing freebase nicotine converted from nicotine.

[0049] According to one embodiment, the tobacco rod (51) may include a hollow space (51a) to accommodate a plurality of tobacco granules. Accordingly, the volatile flavoring agent included in the first filter portion (521) can easily pass through the tobacco rod (51) having the hollow space (51a), thereby delivering a large amount of flavoring agent to the user. In the present disclosure, the hollow space (51a) is a space formed within the tobacco rod (51) and may be referred to as a granule cavity.

[0050] The tobacco rod (51) can be manufactured in various ways. As an example, the tobacco rod (51) can be manufactured in a form that includes a tubular structure, such as a pipe. However, the scope of the present disclosure is not limited thereto, and the tobacco rod (51) may be manufactured in any manner as long as it can be filled with tobacco granules.

[0051] The tobacco rod (51) may be extended to have a length of 12 mm or more and 16 mm or less along the longitudinal direction. However, the length of the tobacco rod (51) is not limited thereto, and the length of the tobacco rod (51) may be appropriately adjusted within a range that can be easily changed by a person skilled in the art.

[0052] The first filter portion (521) is a filter segment connected to the tobacco rod (51) and may be positioned upstream of the tobacco rod (51). The first filter portion (521) may perform a function of preventing tobacco granules from being separated from the tobacco rod (51). In addition, the first filter portion (521) may ensure that the tobacco rod (51) is positioned at an appropriate position within the aerosol generating device when the aerosol generating article (5) is inserted into the aerosol generating device. In addition, the first filter portion (521) may prevent the tobacco rod (51) from being separated to the outside and may also prevent aerosol liquefied from the tobacco rod (51) from flowing into the aerosol generating device during smoking.

[0053] In the present disclosure, “upstream” may be a direction from the cooling rod (53) toward the tobacco rod (51), and “downstream” may be a direction from the tobacco rod (51) toward the cooling rod (53).

[0054] The first filter portion (521) may be manufactured to generate a flavor. In one embodiment, the first filter portion (521) may include a volatile flavorant, and separate fibers containing the volatile flavorant may be inserted into the interior of the first filter portion (521). Accordingly, when a user inhales the aerosol, the volatile flavorant contained in the first filter portion (521) may pass through the tobacco rod (51), the second filter portion (522), the cooling rod (53), and the third filter portion (523) to be delivered to the user.

[0055] In one embodiment, the volatile flavoring agent may include, but is not limited to, at least one of menthol, peppermint, spearmint oil, or a humectant.

[0056] In one embodiment, the first filter element (521) may be a cellulose acetate filter. For example, the filter material may include a bundle of cellulose acetate fiber strands.

[0057] The first filter unit (521) may be manufactured from a material suitable for a heated aerosol generating device. The first filter unit (521) may include a paper material. In other words, the first filter unit (521) may be formed of a paper filter. The heat-resistant paper material melts or shrinks upon contact with the internal heating element of the aerosol generating device, which can significantly alleviate the phenomenon of tobacco granules falling off.

[0058] To ensure smooth airflow, it may be desirable for the paper material to be arranged lengthwise, but this is not limited thereto.

[0059] Additionally, the first filter unit (521) may include a water-resistant or oil-resistant paper material. In this case, the problem of a decrease in visible atomization can be significantly reduced.

[0060] Meanwhile, the properties of the paper material included in the first filter unit (521) may vary.

[0061] The first filter unit (521) may be extended to have a length of 3 mm or more and 12 mm or less along the longitudinal direction. However, the length of the first filter unit (521) is not limited thereto, and the length of the first filter unit (521) may be appropriately adjusted within a range that can be easily changed by a person skilled in the art.

[0062] There is no limitation on the shape of the first filter unit (521). For example, the first filter unit (521) may be a cylindrical rod, or a tube-shaped rod having a hollow portion inside. Alternatively, the first filter unit (521) may be a recessed rod having a hollow portion with an open end.

[0063] The second filter portion (522) may be a filter segment connected to the tobacco rod (51) and may be positioned downstream of the tobacco rod (51). The second filter portion (522) may function to prevent tobacco granules from being separated from the tobacco rod (51). In addition, the second filter portion (522) may ensure that the tobacco rod (51) is positioned at an appropriate position within the aerosol generating device when the aerosol generating article (5) is inserted into the aerosol generating device. In addition, the second filter portion (522) may prevent the tobacco rod (51) from being separated to the outside, and may also prevent aerosol liquefied from the tobacco rod (51) from flowing into the aerosol generating device during smoking.

[0064] The second filter unit (522) may further perform functions such as filtration and cooling for aerosol.

[0065] The second filter unit (522) may be manufactured to generate a flavor. In one embodiment, the second filter unit (522) may include a volatile flavorant, and a separate fiber containing the volatile flavorant may be inserted into the interior of the second filter unit (522). Accordingly, when a user inhales the aerosol, the volatile flavorant contained in the second filter unit (522) may pass through the cooling rod (53) and the third filter unit (523) and be delivered to the user.

[0066] In one embodiment, the volatile flavoring agent may include, but is not limited to, at least one of menthol, peppermint, spearmint oil, or a humectant.

[0067] In one embodiment, the second filter element (522) may be a cellulose acetate filter. For example, the filter material may include a bundle of cellulose acetate fiber strands.

[0068] The second filter unit (522) may be manufactured from a material suitable for a heated aerosol generating device. The second filter unit (522) may include a paper material. In other words, the second filter unit (522) may be formed of a paper filter. The heat-resistant paper material melts or shrinks upon contact with the internal heating element, significantly alleviating the phenomenon of tobacco granules falling off.

[0069] To ensure smooth airflow, it may be desirable for the paper material to be arranged lengthwise, but this is not limited thereto.

[0070] Additionally, the second filter unit (522) may include a water-resistant or oil-resistant paper material. In this case, the problem of a decrease in visible atomization can be significantly reduced.

[0071] Meanwhile, the properties of the paper material included in the second filter unit (522) may vary.

[0072] The second filter unit (522) may be extended to have a length of 3 mm or more and 8 mm or less along the longitudinal direction. However, the length of the second filter unit (522) is not limited thereto, and the length of the second filter unit (522) may be appropriately adjusted within a range that can be easily changed by a person skilled in the art.

[0073] There is no limitation on the shape of the second filter unit (522). For example, the second filter unit (522) may be a cylindrical rod, or a tube-shaped rod having a hollow portion inside. Alternatively, the second filter unit (522) may be a recessed rod having a hollow portion with an open end.

[0074] The third filter unit (523) can filter out some components contained in the aerosol passing through the third filter unit (523). The third filter unit (523) can include a filter material. For example, the third filter unit (523) can be a cellulose acetate filter. The third filter unit (523) can be manufactured by adding a plasticizer (e.g., triacetin) to cellulose acetate tow.

[0075] The third filter unit (523) may be designed to generate a flavor. In one embodiment, the third filter unit (523) may include a volatile flavorant, and a separate fiber containing the volatile flavorant may be inserted into the interior of the third filter unit (523). Accordingly, when a user inhales the aerosol, the volatile flavorant contained in the third filter unit (523) may be delivered to the user.

[0076] In one embodiment, the volatile flavoring agent may include, but is not limited to, at least one of menthol, peppermint, spearmint oil, or a humectant.

[0077] Additionally, the third filter unit (523) may include at least one capsule. Here, the capsule may generate a flavor or aerosol. For example, the capsule may have a structure in which a liquid containing a flavor is encapsulated in a film. The capsule may have a spherical or cylindrical shape, but is not limited thereto.

[0078] The third filter unit (523) may be extended to have a length of 10 mm or more and 16 mm or less along the longitudinal direction. Preferably, the third filter unit (523) may be extended to have a length of 13 mm along the longitudinal direction. However, the length of the third filter unit (523) is not limited thereto, and the length of the third filter unit (523) may be appropriately adjusted within a range that can be easily changed by a person skilled in the art.

[0079] There is no limitation on the shape of the third filter unit (523). For example, the third filter unit (523) may be a cylindrical rod, or a tubular rod having a hollow portion inside. Alternatively, the third filter unit (523) may be a recessed rod having a hollow portion with an open end. If the third filter unit (523) is composed of a plurality of segments, at least one of the segments may be manufactured in a different shape.

[0080] The cooling rod (53) can cool the aerosol generated from the tobacco rod (51). The cooling rod (53) can be made of a biodegradable polymer material and can have a cooling function. For example, the cooling rod (53) can be made of polylactic acid (PLA) fiber, but is not limited thereto.

[0081] Alternatively, the cooling rod (53) may be made of a cellulose acetate filter. However, the cooling rod (53) is not limited to the above-described examples, and any material that performs the function of cooling the aerosol may be used without limitation.

[0082] The cooling rod (53) may be connected to the tobacco rod (51). In one embodiment, the cooling rod (53) may be connected to the tobacco rod (51) via the second filter unit (522).

[0083] In one embodiment, the cooling rod (53) may be a tube filter or a pipe formed of paper that includes a hollow portion (53a).

[0084] At least one hole (not shown) may be formed on the outer surface of the cooling rod (53). The at least one hole may be formed along the circumference of the cooling rod (53) to form one or more columns. The at least one hole may allow external air to flow into the interior of the cooling rod (53). The external air flowing into the interior of the cooling rod (53) may be mixed with the high-temperature aerosol generated from the tobacco rod (51) to cool the aerosol.

[0085] The cooling rod (53) may be extended to have a length of 10 mm or more and 14 mm or less along the longitudinal direction. Preferably, the cooling rod (53) may be extended to have a length of 12 mm along the longitudinal direction. However, the length of the cooling rod (53) is not limited thereto, and the length of the cooling rod (53) may be appropriately adjusted within a range that can be easily changed by a person skilled in the art.

[0086] Although not shown, the aerosol-generating article (5) may be wrapped by at least one wrapper. The wrapper may have at least one hole formed therein to allow outside air to flow in or internal gas to flow out. As an example, the aerosol-generating article (5) may be wrapped by one wrapper. As another example, the aerosol-generating article (5) may be wrapped by two or more wrappers in an overlapping manner. For example, the tobacco rod (51) may be wrapped by a first wrapper, the first filter portion (521), the second filter portion (522), and the third filter portion (523) may be wrapped by second to fourth wrappers, and the cooling rod (53) may be wrapped by a fifth wrapper. In addition, the entire aerosol-generating article (5) may be repackaged by a single wrapper.

[0087] Below, the structure of a segment of an aerosol-generating article according to one embodiment for enhancing the amount of flavoring agent delivered to a user will be described in detail with reference to the attached drawings and experimental examples. First, the structure of an aerosol-generating article according to a comparative example will be described.

[0088] Figure 2 is a perspective view showing a comparative example of an aerosol generating article.

[0089] Referring to FIG. 2, the aerosol generating article (7) may include a tobacco rod (71) and a filter rod (72). In addition, the filter rod (72) may include a first filter portion (721) and a second filter portion (722).

[0090] The tobacco rod (71) may include a plurality of tobacco granules. The tobacco granules may be manufactured by extruding a mixture of tobacco leaf powder, a pH adjuster, and a solvent. The pH adjuster can alkalize the tobacco rod (71), thereby converting the nicotine salt present in the tobacco rod (71) in a salt state into freebase nicotine.

[0091] The first filter unit (721) and the second filter unit (722) may be arranged with the tobacco rod (71) between them. Each of the first filter unit (721) and the second filter unit (722) may be manufactured to generate flavor.

[0092] Meanwhile, in the comparative example, the tobacco rod (71) may include a fiber bundle in which cellulose acetate fiber strands are clumped together, and the fiber bundle may allow free base nicotine released from the tobacco granules to be located in the tobacco rod (71), thereby increasing the amount of nicotine transferred.

[0093] At this time, the fiber bundle of the tobacco rod (71) can filter the volatile flavoring agent contained in the first filter section (721), thereby reducing the amount of flavoring agent delivered to the user. In particular, when direct heating of the aerosol generating article (7) is not performed, the fiber bundle of the tobacco rod (71) can significantly reduce the amount of flavoring agent delivered to the user.

[0094] According to one embodiment, the tobacco rod (51) includes a hollow space (51a), and tobacco granules can be filled in the hollow space (51a). Accordingly, the volatile flavoring agent included in the first filter portion (521) can easily pass through the tobacco rod (51) having the hollow space (51a), thereby allowing the user to inhale a large amount of the flavoring agent.

[0095] In addition, since the aerosol generating article (5) compared to the comparative example further includes a cooling rod (53) having a hollow portion (53a), the amount of volatile flavoring agent transferred through the hollow portion (53a) can be increased.

[0096] The above effect can be demonstrated by Experiment 1, which compares the amount of volatile flavoring agent transferred using an aerosol generating article (5) according to the embodiment illustrated in FIG. 1 and the amount of volatile flavoring agent transferred using an aerosol generating article (7) according to the comparative example illustrated in FIG. 2.

[0097] [Experiment 1]

[0098] First, an aerosol generating article (5) according to an embodiment and an aerosol generating article (7) according to a comparative example, in which a certain amount of menthol is included in the filter load, are prepared.

[0099] Next, the amount of menthol generated from the aerosol generating article (5) according to the embodiment and the aerosol generating article (7) according to the comparative example is measured using the aerosol generating device (1) illustrated in FIG. 3 or below.

[0100] Next, repeat the above experiment by changing the amount of menthol contained in the filter load, and record the amount of menthol transferred.

[0101] Total menthol content per article (mg / article)Menthol transfer per puff (mg / 14puff)Menthol transfer rate (%)Comparative example 7.800.425.4Example 7.000.7711.0

[0102] Total menthol content per article (mg / article)Menthol transfer per puff (mg / 14puff)Menthol transfer rate (%)Comparative example 8.530.516.0Example 8.120.9912.2

[0103] Total menthol content per article (mg / article)Menthol transfer per puff (mg / 14puff)Menthol transfer rate (%)Comparative example 11.800.907.6Example 11.001.4313.0

[0104] Total menthol content per article (mg / article)Menthol transfer per puff (mg / 14puff)Menthol transfer rate (%)Comparative example 13.001.048.0Example 12.001.6213.5

[0105] Total menthol content per article (mg / article)Menthol transfer per puff (mg / 14puff)Menthol transfer rate (%)Comparative example 13.700.967.0Example 13.001.8214.0

[0106] In the above Tables 1 to 5, the total menthol content per article means the total content of menthol contained in the aerosol-generating article (5) according to the embodiment and the aerosol-generating article (7) according to the comparative example. That is, the total menthol content per article means the total content of menthol contained in the filter rod (52) of the aerosol-generating article (5) according to the embodiment and the filter rod (72) of the aerosol-generating article (7) according to the comparative example. In the above Tables 1 to 5, the amount of menthol transferred per predetermined puff means the total amount of menthol transferred to the user when the user inhales the aerosol-generating article a predetermined number of times (14 times).

[0107] In addition, the menthol migration rate in the above Tables 1 to 5 means the ratio of the total menthol content included in the product to the amount of menthol migration per given puff expressed as a percentage. That is, in the embodiment, the menthol migration rate is the value obtained by dividing the amount of volatile flavoring agent passing through the third filter unit (523) by the total content of volatile flavoring agent included in the filter rod (52) expressed as a percentage, and in the comparative example, the menthol migration rate is the value obtained by dividing the amount of volatile flavoring agent passing through the second filter unit (722) by the total content of volatile flavoring agent included in the filter rod (72) expressed as a percentage.

[0108] Referring to Tables 1 to 5 above, it can be seen that, although the total content of menthol included in the aerosol generating article (7) according to the comparative example is greater than the total content of menthol included in the aerosol generating article (5) according to the embodiment, the amount of menthol transferred and the rate of menthol transfer are greater in the embodiment. This is because, as described above, the volatile flavoring agent included in the first filter portion (521) can easily pass through the tobacco rod (51) having the empty space (51a) and the cooling rod (53) having the hollow space (53a).

[0109] In addition, the first filter part (521) and the second filter part (522) can be arranged with a tobacco rod (51) having an empty space (51a) therebetween so that freebase nicotine released from tobacco granules is positioned in the tobacco rod (51). That is, unlike the conventional tobacco rod (51), since the tobacco rod (51) includes an empty space (51a) filled with tobacco granules, there are no structures for positioning freebase nicotine in the empty space (51a), but since the first filter part (521) and the second filter part (522) perform this function, the amount of nicotine transferred can also be guaranteed.

[0110] Hereinafter, various examples of the content of volatile flavoring agents included in an aerosol generating article according to one embodiment for improving the amount of flavoring agent delivered to a user will be specifically described with reference to experimental examples.

[0111] According to one embodiment, the first content of the volatile flavoring agent included in the first filter unit (521) may be greater than the second content of the volatile flavoring agent included in the second filter unit (522). Accordingly, the amount of menthol transferred may be improved compared to the comparative example in which the first content is less than the second content. This effect can be demonstrated in Experiment 2 below.

[0112] [Experiment 2]

[0113] First, an aerosol-generating article (Example) having a first content greater than a second content and an aerosol-generating article (Comparative Example) having a first content less than a second content are prepared. At this time, the Example and Comparative Example may have the same total menthol content of 12 (mg / article), and the total menthol content included in the third filter unit (523) may also be the same at 2 mg.

[0114] Next, the amount of menthol produced from the prepared aerosol generating product is measured using the aerosol generating device (1) illustrated in FIG. 3 or below.

[0115] First content (mg / article) Second content (mg / article) Amount of menthol transferred per puff (mg / 14puff) Menthol transfer rate (%) Comparative example 4.06.01.129.3 Example 6.04.01.6213.5

[0116] In the above Table 6, the first content refers to the total content of menthol contained in the first filter part (521), and the second content refers to the total content of menthol contained in the second filter part (522). In the above Table 6, the amount of menthol transferred per predetermined puff refers to the total amount of menthol transferred to the user when the user inhales the aerosol generating product a predetermined number of times (14 times).

[0117] In addition, the menthol transfer rate in the above Table 6 means the ratio of the total menthol content included in the product to the amount of menthol transferred per given puff, expressed as a percentage. That is, the menthol transfer rate is the amount of volatile flavoring agent that passed through the third filter section (523) divided by the total content of volatile flavoring agent included in the filter rod (52), expressed as a percentage.

[0118] Referring to Table 6 above, it can be seen that, although the comparative examples and examples contain the same amount of menthol in the filter rod (52), the rate of menthol transfer is greater in the example in which the first content is greater than the second content. That is, the more volatile flavoring agent is included upstream of the tobacco rod (51), the greater the amount of menthol that passes through the third filter section (523).

[0119] In general, volatile flavorants contained in areas farther from the user's mouth tend to volatilize before reaching the user compared to volatile flavorants contained in areas closer to the user's mouth. Therefore, according to one embodiment, by including a large amount of volatile flavorants upstream of the tobacco rod (51), which is a region farther from the user's mouth, the overall volatile flavor delivery rate can be increased.

[0120] In one embodiment, the volume of the first filter portion (521) may be greater than the volume of the second filter portion (522). Accordingly, a greater amount of volatile flavoring agent may be included in the first filter portion (521).

[0121] In one embodiment, the second content of the volatile flavoring agent included in the second filter unit (522) may be greater than the third content of the volatile flavoring agent included in the third filter unit (523). Accordingly, the amount of menthol transferred may be improved compared to the comparative example in which the second content is less than the third content. This effect can be demonstrated in Experiment 3 below.

[0122] [Experiment 3]

[0123] First, an aerosol-generating article (Example) having a second content greater than a third content and an aerosol-generating article (Comparative Example) having a second content less than a third content are prepared. At this time, the Example and Comparative Example may have the same total menthol content of 12 (mg / article), and the total menthol content included in the first filter unit (521) may also be the same at 6 mg.

[0124] Next, the amount of menthol produced from the prepared aerosol generating product is measured using the aerosol generating device (1) illustrated in FIG. 3 or below.

[0125] Second content (mg / article) Third content (mg / article) Amount of menthol transferred per puff (mg / 14puff) Menthol transfer rate (%) Comparative example 2.04.01.199.9 Example 4.02.01.6213.5

[0126] In the above Table 7, the second content refers to the total content of menthol contained in the second filter part (522), and the third content refers to the total content of menthol contained in the third filter part (523). In the above Table 7, the amount of menthol transferred per predetermined puff refers to the total amount of menthol transferred to the user when the user inhales the aerosol generating product a predetermined number of times (14 times).

[0127] In addition, the menthol transfer rate in the above Table 7 means the ratio of the total menthol content included in the product to the amount of menthol transferred per given puff, expressed as a percentage. That is, the menthol transfer rate is the amount of volatile flavoring agent that passed through the third filter section (523) divided by the total content of volatile flavoring agent included in the filter rod (52), expressed as a percentage.

[0128] Referring to Table 7 above, it can be seen that, even though the comparative examples and examples contain the same amount of menthol in the filter rod (52), the rate of menthol transfer is greater in the example in which the second content is greater than the third content. That is, the more volatile flavoring agent is included upstream of the cooling rod (53), the greater the amount of menthol that passes through the third filter section (523).

[0129] In addition, when comparing the comparative examples of Table 7 and Table 6, it can be seen that the more volatile flavoring agent is included upstream of the tobacco rod (51), the greater the amount of menthol passing through the third filter section (523).

[0130] In general, volatile flavorants contained in an area farther from the user's mouth tend to volatilize before reaching the user compared to volatile flavorants contained in an area closer to the user's mouth. Therefore, according to one embodiment, by including a large amount of volatile flavorants upstream of the cooling rod (53), which is a area farther from the user's mouth, the overall volatile flavor transfer rate can be increased.

[0131] According to one embodiment, the total content of the volatile flavoring agent included in the filter rod (52) may be 11.1 mg or more and 13.0 mg or less. At this time, the total content of the volatile flavoring agent included in the filter rod (52) may be 1.3 mg / mm or more and 1.52 mg / mm or less based on the length of the filter rod (52). For example, the total content of the volatile flavoring agent included in the filter rod (52) may be 10 mg or 1.4 mg / mm.

[0132] In one embodiment, the first content may range from 5.7 mg to 6.5 mg. In this case, the first content may range from 0.55 mg / mm to 0.65 mg / mm based on the length of the first filter portion (521). For example, the first content may be 6.0 mg or 0.60 mg / mm.

[0133] Within this first content range, the rate of transfer of the volatile flavoring agent included in the first filter unit (521) can be increased, the flavor can be improved, and the possibility of leakage of the volatile flavoring agent included in the first filter unit (521) can be reduced. This can be proven by the following Experiment 4.

[0134] [Experiment 4]

[0135] First, aerosol generating articles (5) having first filter sections (521) containing different menthol contents are prepared.

[0136] Next, by changing the aerosol generating items (5), the menthol transfer rate, flavor, and whether leakage occurs from the first filter unit (521) are recorded using the aerosol generating device (1) illustrated in FIG. 3 or lower.

[0137] At this time, the content of menthol contained in the second filter unit (522) and the third filter unit (523) is maintained at 4 mg and 2 mg, respectively.

[0138] Experimental Example 1 Content (mg) Menthol Total content (mg) Amount of menthol transferred per puff (mg / 14puff) Menthol transfer rate (%) Flavor Leakage 14.2 10.20.5 04.9 Low 25.0 11.00.75 6.8 Low 35.6 11.60.9 27.9 Medium 45.7 11.71.5 112.9 High 56.0 12.1.62 13.5 High 66.5 12.5 1.71 13.68 High 76.6 12.6 1.75 13.9 Medium 87.5 13.5 1.97 14.6 Low 98.5 14.5 2.22 15.3 Low 1010.01 62.50 15.6 Low 1

[0139] In the above Table 8, the first content refers to the total content of menthol contained in the first filter unit (521). In addition, in the above Table 8, the amount of menthol transferred per predetermined puff refers to the total amount of menthol transferred to the user when the user inhales the aerosol generating product a predetermined number of times (14 times). In addition, in the above Table 8, the menthol transfer rate refers to the ratio of the total content of menthol contained in the product to the amount of menthol transferred per predetermined puff, expressed as a percentage. That is, the menthol transfer rate is the amount of volatile flavoring agent that passed through the third filter unit (523) divided by the total content of volatile flavoring agent contained in the filter rod (52), expressed as a percentage. Referring to the above Table 8, it can be seen that the menthol transfer rate gradually increases as the first content increases. In one embodiment, when the first content is 5.7 mg or more, it can be seen that the menthol transfer rate increases rapidly from 7.9% to 12.9% as the amount of menthol transferred per puff increases rapidly from 0.92 mg to 1.51 mg.

[0140] Also, referring to Table 8 above, it can be seen that the flavor perceived by the user improves as the first content increases to 6.5 mg. However, it can be seen that when the first content exceeds 6.5 mg, the flavor perceived by the user actually decreases. This is because when a predetermined amount of menthol is included in the first filter unit (521), a highly concentrated volatile flavor is directly delivered to the user, thereby decreasing the flavor.

[0141] Also, referring to Table 8 above, it can be seen that when the first content exceeds 6.5 mg, leakage occurs in the first filter unit (521). This is because when a preset amount of menthol is included in the first filter unit (521), the menthol liquid is not completely absorbed into the fibers of the first filter unit (521).

[0142] According to one embodiment, as the first content is set to a range of 5.7 mg or more and 6.5 mg or less, the amount of volatile flavoring agent transferred increases, thereby improving flavor and reducing the possibility of volatile flavoring agent leakage from the first filter unit (521).

[0143] In one embodiment, the second content may range from 3.7 mg to 4.3 mg. In this case, the second content may range from 0.62 mg / mm to 0.70 mg / mm based on the length of the second filter portion (522). For example, the second content may be 4.0 mg or 0.65 mg / mm.

[0144] Within this second content range, the rate of transfer of the volatile flavoring agent included in the second filter unit (522) can be increased, the flavor can be improved, and the possibility of leakage of the volatile flavoring agent included in the second filter unit (522) can be reduced. This can be proven by the following Experiment 5.

[0145] [Experiment 5]

[0146] First, aerosol generating articles (5) having second filter sections (522) containing different menthol contents are prepared.

[0147] Next, by changing the aerosol generating items (5), the menthol transfer rate, flavor, and whether leakage occurs from the second filter unit (522) are recorded using the aerosol generating device (1) illustrated in FIG. 3 and below.

[0148] At this time, the content of menthol contained in the first filter unit (521) and the third filter unit (523) is maintained at 6 mg and 2 mg, respectively.

[0149] Experimental Example 2 Content (mg) Menthol Total content (mg) Amount of menthol transferred per puff (mg / 14puff) Menthol transfer rate (%) Flavor Leakage 12.3 10.30.5 14.95 Low 22.8 10.80.7 36.76 Low 33.6 11.60.9 27.9 Medium 43.7 11.71.5 112.9 High 54.0 12.01.62 13.5 High 64.3 12.31.67 13.58 High 74.4 12.41.69 13.63 Medium 85.0 13.01.85 14.2 Low 95.2 13.21.89 14.3 Low 105.8 13.82.10 15.2 Low

[0150] In the above Table 9, the second content refers to the total content of menthol included in the second filter unit (522). In addition, in the above Table 9, the amount of menthol transferred per predetermined puff refers to the total amount of menthol transferred to the user when the user inhales the aerosol generating product a predetermined number of times (14 times). In addition, in the above Table 9, the menthol transfer rate refers to the ratio of the total content of menthol included in the product to the amount of menthol transferred per predetermined puff, expressed as a percentage. That is, the menthol transfer rate is the amount of volatile flavoring agent that passed through the third filter unit (523) divided by the total content of volatile flavoring agent included in the filter rod (52), expressed as a percentage. Referring to the above Table 9, it can be seen that the menthol transfer rate gradually increases as the second content increases. In one embodiment, when the second content is 3.7 mg or more, the menthol transfer rate is found to rapidly increase from 7.9% to 12.9% as the amount of menthol transferred per puff rapidly increases from 0.92 mg to 1.51 mg.

[0151] Also, referring to Table 9 above, it can be seen that the flavor perceived by the user improves as the second content increases up to 4.3 mg. However, it can be seen that the flavor perceived by the user actually decreases when the second content exceeds 4.3 mg. This is because when a preset amount of menthol is included in the second filter unit (522), a highly concentrated volatile flavor is delivered to the user.

[0152] Also, referring to Table 9 above, it can be seen that when the second content exceeds 4.3 mg, leakage occurs in the second filter unit (522). This is because when a preset amount of menthol is included in the second filter unit (522), the menthol liquid is not completely absorbed into the fibers of the second filter unit (522).

[0153] According to one embodiment, as the second content is set to a range of 3.7 mg or more and 4.3 mg or less, the amount of volatile flavoring agent transferred increases, thereby improving flavor and reducing the possibility of volatile flavoring agent leakage from the second filter unit (522).

[0154] In one embodiment, the third content may range from 1.7 mg to 2.3 mg. In this case, the third content may range from 0.13 mg / mm to 0.17 mg / mm based on the length of the third filter unit (523). Preferably, the third content may be 2.0 mg or 0.15 mg / mm.

[0155] Within this third content range, the rate of transfer of the volatile flavoring agent included in the third filter unit (523) can be increased, the flavor can be improved, and the possibility of leakage of the volatile flavoring agent included in the third filter unit (523) can be reduced. This can be proven by the following Experiment 6.

[0156] [Experiment 6]

[0157] First, aerosol generating articles (5) having a third filter section (523) containing different menthol contents are prepared.

[0158] Next, by changing the aerosol generating items (5), the menthol transfer rate, flavor, and whether leakage occurs from the third filter unit (523) are recorded using the aerosol generating device (1) illustrated in FIG. 3 and below.

[0159] At this time, the content of menthol contained in the first filter unit (521) and the second filter unit (522) is maintained at 6 mg and 4 mg, respectively.

[0160] Experimental Example 2 Content (mg) Menthol Total content (mg) Amount of menthol transferred per puff (mg / 14puff) Menthol transfer rate (%) Flavor Leakage Occurrence 11.01 1.00.75 6.8 Low-level occurrence 21.5 11.50.90 7.8 Low-level occurrence 31.6 11.60.92 7.9 Medium-level occurrence 41.7 11.71.5 112.9 High-level occurrence 52.01 2.01.62 13.5 High-level occurrence 62.3 12.31.67 13.58 High-level occurrence 72.4 12.41.69 13.63 Medium-level occurrence 82.5 12.5 1.71 13.68 Low-level occurrence 93.01 3.01.85 14.2 Low-level occurrence 103.5 13.5 1.97 14.6 Low-level occurrence

[0161] In the above Table 10, the third content refers to the total content of menthol contained in the third filter unit (523). In addition, in the above Table 10, the amount of menthol transferred per predetermined puff refers to the total amount of menthol transferred to the user when the user inhales the aerosol generating product a predetermined number of times (14 times). In addition, in the above Table 10, the menthol transfer rate refers to the ratio of the total content of menthol contained in the product to the amount of menthol transferred per predetermined puff, expressed as a percentage. That is, the menthol transfer rate is the amount of volatile flavoring agent that passed through the third filter unit (523) divided by the total content of volatile flavoring agent contained in the filter rod (52), expressed as a percentage. Referring to the above Table 10, it can be seen that as the third content increases, the menthol transfer rate gradually increases. In one embodiment, when the third content is 1.7 mg or more, the menthol transfer rate is found to rapidly increase from 7.9% to 12.9% as the amount of menthol transferred per puff rapidly increases from 0.92 mg to 1.51 mg.

[0162] Also, referring to Table 10 above, it can be seen that the flavor perceived by the user improves as the third content increases to 2.3 mg. However, it can be seen that the flavor perceived by the user actually decreases when the third content exceeds 2.3 mg. This is because when a predetermined amount of menthol is included in the third filter unit (523), a highly concentrated volatile flavor is delivered to the user.

[0163] Also, referring to Table 10 above, it can be seen that when the third content exceeds 2.3 mg, leakage occurs in the third filter unit (523). This is because when a preset amount of menthol is included in the third filter unit (523), the menthol liquid is not completely absorbed into the fibers of the third filter unit (523).

[0164] According to one embodiment, as the third content is set to a range of 1.7 mg or more and 2.3 mg or less, the amount of volatile flavoring agent transferred increases, thereby improving flavor and reducing the possibility of volatile flavoring agent leakage from the third filter unit (523).

[0165] Hereinafter, an aerosol generating device using an aerosol generating article (5) according to the above-described embodiment will be described in detail with reference to the attached drawings.

[0166] FIG. 3 is a perspective view of an aerosol generating device and an aerosol generating article inserted therein according to one embodiment.

[0167] Referring to FIG. 3, an aerosol generating device (1) according to one embodiment may include a cartridge (100), an aerosol generating device body (200), and a cap (300). In the aerosol generating device (1) according to one embodiment, it goes without saying that some components and structures may be replaced, added, or omitted within a range easily understandable to a person skilled in the art by referring to the drawings and descriptions below.

[0168] An aerosol generating substance may be stored inside the cartridge (100), and the aerosol generating substance stored in the cartridge (100) may be supplied to a heating unit included in the cartridge (100). Accordingly, the aerosol generating substance may be aerosolized within a chamber included in the cartridge (100) by the heating unit. In the present disclosure, the term "aerosol" may refer to particles generated by mixing air with vapor generated by heating the aerosol generating substance, and the expression may be used with the same meaning below. A specific description of the heating unit and the chamber will be described later.

[0169] According to an aerosol generating device (1) according to one embodiment, an aerosol generating article (5) according to one embodiment can be accommodated in a cartridge (100). Although not illustrated in FIG. 3, the cartridge (100) may include a receiving portion for accommodating the aerosol generating article (5), and an aerosol generated inside the cartridge (100) may pass through the aerosol generating article (5) accommodated in the receiving portion and be discharged to the outside of the aerosol generating device (1). At this time, a user may contact the aerosol generating article (5) with his or her mouth and inhale the aerosol discharged to the outside of the aerosol generating device (1) through the aerosol generating article (5). Since the aerosol generating article (5) according to one embodiment has been described above, a detailed description thereof will be omitted.

[0170] The aerosol generating device body (200) is positioned at the lower portion (e.g., the portion facing the -z direction) of the cartridge (100) and the cap (300), and can support the cartridge (100) and the cap (300). Components for the operation of the aerosol generating device (1) can be arranged inside the aerosol generating device body (200).

[0171] The cap (300) may be arranged to surround at least a portion of the cartridge (100) and at least a portion of the aerosol generating device body (200). For example, the cap (300) may be coupled to the aerosol generating device body (200) to completely surround the outside of the cartridge (100). The cap (300) may protect the cartridge (100) and the aerosol generating device body (200) from external impact or the inflow of external foreign substances.

[0172] FIG. 4 is a schematic front view of an aerosol generating device and an aerosol generating article inserted therein according to one embodiment.

[0173] Referring to FIG. 4, the aerosol generating device (1) may include a cartridge (100), an aerosol generating device body (200), and an airflow passage (400). However, the components of the aerosol generating device (1) are not limited thereto, and at least one component may be added or at least one component (e.g., the cap (300) of FIG. 3) may be omitted depending on the embodiment.

[0174] The cartridge (100) can be detachably coupled to the aerosol generating device body (200). The cartridge (100) can include a storage portion (110), a receiving portion (120), and a chamber (130).

[0175] An aerosol generating substance can be stored in the storage unit (110). The storage unit (110) can be connected or fluidly connected to the internal space of the chamber (130) of the cartridge (100), and as a result, the aerosol generating substance stored in the storage unit (110) can be introduced into the internal space of the chamber (130) of the cartridge (100).

[0176] At this time, the aerosol generating material stored in the storage unit (110) may include a tobacco-containing material including a volatile tobacco flavor component, or may include a liquid composition including a non-tobacco material.

[0177] In one embodiment, the liquid composition may include any one or a mixture of water, solvent, ethanol, plant extract, fragrance, flavoring agent, and vitamin mixture. The fragrance may include, but is not limited to, menthol, peppermint, spearmint oil, and various fruit-flavored ingredients. The flavoring agent may include ingredients that can provide a variety of flavors or tastes to the user. The vitamin mixture may include, but is not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. The liquid composition may also include an aerosol-forming agent such as glycerin and propylene glycol.

[0178] For example, the liquid composition may comprise a solution of glycerin and propylene glycol in any weight ratio to which a nicotine salt has been added. The liquid composition may also comprise two or more nicotine salts. The nicotine salt may be formed by adding a suitable acid, including an organic or inorganic acid, to nicotine. The nicotine may be naturally occurring nicotine or synthetic nicotine and may have any suitable weight concentration relative to the total solution weight of the liquid composition.

[0179] The acid for forming the nicotine salt may be appropriately selected in consideration of the rate of nicotine absorption in the blood, the operating temperature of the aerosol generating device (1), flavor or taste, solubility, etc. For example, the acid for forming the nicotine salt may be a single acid selected from the group consisting of benzoic acid, lactic acid, salicylic acid, lauric acid, sorbic acid, levulinic acid, pyruvic acid, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, capric acid, citric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, phenylacetic acid, tartaric acid, succinic acid, fumaric acid, gluconic acid, saccharic acid, malonic acid, or malic acid, or a mixture of two or more acids selected from the group, but is not limited thereto.

[0180] When the aerosol generating substance stored in the storage unit (110) is exhausted, the user can continue smoking by replacing the existing cartridge (100) with a new cartridge (100). As another example, when the performance of a component of the cartridge (100) (e.g., a heating unit or a sealing unit) deteriorates and a sufficient amount of aerosol is not generated or leakage of the aerosol generating substance occurs, the user can replace the existing cartridge (100) with a new cartridge (100) to ensure a sufficient amount of aerosol is generated or to prevent leakage of the aerosol generating substance.

[0181] An aerosol generating device (1) according to one embodiment may enable replacement of a cartridge (100) through a structure in which the cartridge (100) is detachably coupled to a main body (200) of the aerosol generating device. That is, the aerosol generating device (1) according to one embodiment may have a structure in which a storage unit (110) for storing an aerosol generating substance and a receiving unit (120) for receiving an aerosol generating article (5) are replaced together through replacement of the cartridge (100).

[0182] The receiving portion (120) can receive an aerosol generating material (5). The internal space of the receiving portion (120) can be spatially separated from the storage portion (110), and the aerosol generating material stored in the storage portion (110) may not flow into the internal space of the receiving portion (120).

[0183] The chamber (130) may provide a space where an aerosol is generated. The chamber (130) may be connected to each of the storage unit (110) and the receiving unit (120). A heating unit may be placed inside the chamber (130). For example, the heating unit may include a wick that absorbs an aerosol generating substance and a heating coil that heats the wick. However, the components of the heating unit are not limited thereto.

[0184] Components for the operation of the aerosol generating device (1) may be arranged inside the aerosol generating device main body (200). For example, a battery (210) and a processor (220) may be arranged inside the aerosol generating device main body (200). However, the battery (210) and the processor (220) are merely examples of components arranged inside the aerosol generating device main body (200), and other components (e.g., a user interface, a sensor, etc.) may be arranged inside the aerosol generating device main body (200) in addition to the above-described components.

[0185] The battery (210) can supply power used for the operation of the aerosol generating device (1). For example, the battery (210) can be electrically connected to the heating element of the cartridge (100) to supply power so that the heating element can be heated. As another example, the battery (210) can also supply power required for the operation of other components (e.g., a processor, etc.) of the aerosol generating device (1).

[0186] The processor (220) can control the overall operation of the aerosol generating device (1). The processor (220) may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory storing a program that can be executed on the microprocessor, but is not limited thereto.

[0187] In one embodiment, the processor (220) can control the power supplied from the battery (210) to the heating unit of the aerosol generating device (1). For example, the processor (220) can control the amount of power supplied from the battery (210) to the heating unit and the time for which the power is supplied so that the heating unit can be heated to a predetermined temperature or maintained at a designated temperature.

[0188] The airflow passage (400) may be a path through which air and / or aerosol moves. The airflow passage (400) may include an inlet through which external air is introduced and an outlet through which air and / or aerosol is discharged. The airflow passage (400) may connect the exterior of the aerosol generating device (1) and the receiving portion (120).

[0189] For example, the airflow passage (400) may be formed inside the cartridge (100). At this time, the airflow passage (400) may include a first portion extending along the direction in which the cartridge (100) extends and a second portion crossing the first portion. The first portion may communicate with the outside of the aerosol generating device (1) and the chamber (130), and the second portion may communicate with the chamber (130) and the receiving portion (120).

[0190] As another example, the airflow passage (400) may be formed between the cartridge (100) and the aerosol generating device body (200). In this case, the airflow passage (400) may extend in a direction transverse to the direction in which the cartridge (100) extends.

[0191] According to one embodiment, the aerosol generated inside the cartridge (100) can transfer freebase nicotine present in the aerosol generating article (5) while passing through the receiving portion (120) together with external air introduced through the airflow passage (400). That is, even if a separate heating operation is not performed on the aerosol generating article (5), the freebase nicotine present in the aerosol generating article (5) can be easily transferred to the user by the flow of airflow inside the aerosol generating device (1).

[0192] In one embodiment, the aerosol generating device (1) may further include a heater (500).

[0193] The heater (500) can heat the aerosol generating article (5) accommodated in the receiving portion (120). At this time, the fluidity of nicotine and / or flavoring agent passing through the aerosol generating article (5) can be increased by the heat generated by the heater (500). Accordingly, at least one of the amount of nicotine and / or flavoring agent transferred, the transfer efficiency, or the transfer speed can be improved. Accordingly, the amount of nicotine and / or flavoring agent delivered to the user can be increased.

[0194] The heater (500) may be arranged to surround the aerosol generating article (5) accommodated in the receiving portion (120). For this purpose, the heater (500) may have an overall hollow cylindrical shape. However, the shape of the heater (500) is not limited thereto. For example, the heater (500) may include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element. In this case, the heater (500) may extend upwardly on the receiving portion (120).

[0195] The description of the above-described embodiments is merely illustrative, and those skilled in the art will appreciate that various modifications and equivalent alternative embodiments are possible. Therefore, the true scope of protection for the invention should be defined by the appended claims, and all differences within the scope equivalent to the content described in the claims should be construed as being included within the scope of protection defined by the claims.

[0196] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0197] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0198] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. Tobacco load containing an aerosol generating substance; a cooling rod located downstream of the above tobacco rod and including a hollow portion; and A filter load comprising a volatile flavoring agent; The filter load includes a first filter portion connected upstream of the tobacco load, and a second filter portion disposed between the tobacco load and the cooling load. An aerosol generating article, wherein the first content of the volatile flavoring agent included in the first filter portion is greater than the second content of the volatile flavoring agent included in the second filter portion.

2. In paragraph 1, The above filter load further includes a third filter section connected downstream of the above cooling load, An aerosol generating article, wherein the second content of the volatile flavoring agent included in the second filter portion is greater than the third content of the volatile flavoring agent included in the third filter portion.

3. In paragraph 1, An aerosol generating article, wherein the tobacco rod comprises a cavity, which is an empty space filled with the aerosol generating material.

4. In paragraph 1, The above filter load further includes a third filter section connected downstream of the above cooling load, An aerosol generating article, wherein the ratio of the total content of the volatile flavoring agent contained in the filter load to the amount of the volatile flavoring agent passing through the third filter section is 10% or more and 14% or less.

5. In paragraph 1, An aerosol generating article, wherein the first content has a range of 5.7 mg or more and 6.5 mg or less.

6. In paragraph 1, An aerosol generating article, wherein the second content has a range of 3.7 mg or more and 4.3 mg or less.

7. In paragraph 2, An aerosol generating article, wherein the third content has a range of 1.7 mg or more and 2.3 mg or less.

8. In paragraph 1, An aerosol generating article, wherein the first content has a range of 0.55 mg / mm or more and 0.65 mg / mm or less.

9. In paragraph 1, An aerosol generating article, wherein the second content has a range of 0.62 mg / mm or more and 0.70 mg / mm or less.

10. In paragraph 2, An aerosol generating article, wherein the third content has a range of 0.13 mg / mm or more and 0.17 mg / mm or less.

11. In paragraph 1, An aerosol generating article, wherein the volume of the first filter portion is greater than the volume of the second filter portion.

12. In paragraph 1, The above filter load further includes a third filter section connected downstream of the above cooling load, An aerosol generating article, wherein at least one of the first filter section, the second filter section, or the third filter section is a cellulose acetate filter.

13. In paragraph 1, An aerosol generating article, wherein the tobacco rod comprises a pH adjusting agent.

14. In paragraph 1, An aerosol generating article wherein the volatile flavoring agent comprises at least one of menthol, peppermint, spearmint oil, or a humectant.

15. Aerosol generating articles of paragraph 1; A cartridge having a receiving portion for receiving the aerosol generating article, a chamber connected to the receiving portion, a storage portion for storing the aerosol generating material and connected to the chamber, and a heating portion disposed in the chamber for supplying and heating the aerosol generating material; and An aerosol generation system comprising: a battery for supplying power to the heating unit of the cartridge; a control unit for controlling power supplied from the battery to the heating unit; and an aerosol generation device body to which the cartridge is detachably coupled.

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