Aerosol generating product and aerosol generating system

Abstract

An aerosol-generating article according to various embodiments comprises: a first segment; and a second section disposed on a downstream side of the first section, nicotine being adsorbed into the first section and the second section, the suction resistance of the first section being greater than or equal to the suction resistance of the second section.

Description

Technical Field

[0001] The following embodiments relate to an aerosol-generating article and an aerosol-generating system. Background Art

[0002] In recent years, the demand for products that replace traditional cigarettes has been increasing. For example, there is an increasing need for devices that generate aerosols by electrically heating cigarette rods (e.g., cigarette-type electronic cigarettes). Therefore, research on electrically heated aerosol generating devices and cigarette rods (or aerosol generating products) therefor is very active. For example, Patent Publication No. 10-2017-0132823 discloses a non-combustion flavor inhaler, a flavor source unit, and an atomization unit. Summary of the invention

[0003] Problem that the invention aims to solve

[0004] An object of one embodiment is to provide an aerosol-generating article that does not require heating and an aerosol-generating system including the same.

[0005] An object of one embodiment is to provide an aerosol-generating article and an aerosol-generating system including the same, which can ensure a uniform nicotine transfer amount during smoking.

[0006] An object of one embodiment is to provide an aerosol-generating article and an aerosol-generating system including the same, which can ensure a uniform smoking sensation during smoking.

[0007] An object of one embodiment is to provide an aerosol-generating article and an aerosol-generating system including the same, which can minimize the instability caused by free nicotine according to pH adjustment.

[0008] An object of one embodiment is to provide an aerosol-generating article and an aerosol-generating system including the same, wherein the aerosol-generating article can selectively provide various intensities of smoking sensation as a single aerosol-generating article.

[0009] Means used to solve problems

[0010] According to various embodiments, the aerosol generating article includes: a first section; and a second section, which is arranged on the downstream side of the first section, nicotine is adsorbed into the first section and the second section, and the inhalation resistance of the first section may be greater than or equal to the inhalation resistance of the second section.

[0011] In one embodiment, the inhalation resistance per unit length of the first section may be greater than or equal to the inhalation resistance per unit length of the second section.

[0012] In one embodiment, the first segment and the second segment may be made of cellulose acetate, and the mass of cellulose acetate per unit length of the first segment may be greater than or equal to the mass of cellulose acetate per unit length of the second segment.

[0013] In one embodiment, the denier of the first section may be less than or equal to the denier of the second section.

[0014] In one embodiment, the aerosol-generating article may further include: a medium segment disposed between the first segment and the second segment, the medium segment may include a pH-treated tobacco medium, and the nicotine adsorbed into the first segment or the nicotine adsorbed into the second segment may be transferred from the medium segment. The medium segment may be pH-treated so that the pH is within the range of 7.0 or more and 9.5 or less.

[0015] In one embodiment, the first section or the second section may be made by cutting a filter portion, and free nicotine discharged from the medium raw material including nicotine is transferred to the filter portion.

[0016] According to various embodiments, an aerosol generating system includes: an aerosol generating article; and an aerosol generating device, including a control unit, an elongated cavity and a vaporizer, the control unit including at least one processor, the elongated cavity configured to accommodate the aerosol generating article, the vaporizer configured to generate an aerosol by heating a liquid composition and discharge the aerosol to the aerosol generating article, the aerosol generating article including: a first section; and a second section, arranged on the downstream side of the first section, the first section or the second section is composed of cellulose acetate adsorbed with nicotine, and the denier of the second section may be less than or equal to the denier of the second section.

[0017] In one embodiment, the inhalation resistance per unit length of the first section may be greater than or equal to the inhalation resistance per unit length of the second section.

[0018] In one embodiment, the aerosol generating article further comprises a medium segment disposed between the first segment and the second segment, the medium segment comprising a pH-treated tobacco medium, and the nicotine adsorbed into the first segment or the nicotine adsorbed into the second segment is transferred from the medium segment. The aerosol generating device may further comprise a heater for heating the first segment, the medium segment or the second segment, and the control unit may control the temperature at which the heater heats the first segment, the medium segment or the second segment.

[0019] Effects of the Invention

[0020] An aerosol-generating article and an aerosol-generating system including the same according to an embodiment can achieve aerosol transfer without heating the aerosol-generating article.

[0021] An aerosol-generating article and an aerosol-generating system including the same according to an embodiment can ensure a uniform nicotine transfer amount during smoking.

[0022] An aerosol generating article and an aerosol generating system including the same according to an embodiment can ensure a uniform smoking sensation during smoking.

[0023] An aerosol-generating article and an aerosol-generating system including the same according to an embodiment may allow the aerosol-generating article to be used directly without preheating the device.

[0024] An aerosol-generating article according to an embodiment and an aerosol-generating system including the same may minimize instability caused by free nicotine based on pH adjustment.

[0025] An aerosol-generating article and an aerosol-generating system including the same according to an embodiment can selectively provide various intensities of smoking sensations with a single aerosol-generating article.

[0026] An aerosol-generating article and an aerosol-generating system including the same according to an embodiment can provide a user with a smoking satisfaction by ensuring sufficient nicotine transfer in a non-heating mode.

[0027] An aerosol-generating article and an aerosol-generating system including the same according to an embodiment can be expected to extend the service life of the device when used in a non-heating mode.

[0028] The effects of the aerosol generating article and the aerosol generating system including the same according to an embodiment are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by ordinary technicians in this field through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings illustrate preferred embodiments of the present invention and are provided together with the detailed description of the present invention for better understanding of the technical idea of ​​the present invention. Therefore, the present invention should not be construed as being limited to the embodiments set forth in the accompanying drawings.

[0030] Figure 1 is a block diagram of an aerosol generating system according to an embodiment.

[0031] Figure 2a and Figure 2b FIG. 1 is a diagram schematically showing an aerosol generating system in which an aerosol generating article is combined with an aerosol generating device according to an embodiment.

[0032] Figure 3FIG. 4 is a diagram schematically showing the structure of an aerosol generating article according to an embodiment.

[0033] Figure 4 Nicotine transfer testing for each segment of the aerosol-generating article is shown. DETAILED DESCRIPTION

[0034] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. However, various changes can be made to the embodiments, and the scope of the invention is not limited or defined by the embodiments. All changes, equivalents or substitutes of the embodiments are included in the scope of the rights.

[0035] The terms used in the embodiments are only used to illustrate specific embodiments and are not used to limit the embodiments. In the absence of special instructions in the content, singular expressions include plural meanings. In this specification, the terms "including" or "having" are used to express the existence of features, numbers, steps, actions, constituent elements, parts or combinations thereof recorded in the specification, and do not exclude the possibility of the existence or addition of one or more other features, numbers, steps, actions, constituent elements, parts or combinations thereof.

[0036] In the absence of other definitions, all terms used herein, including technical or scientific terms, have the common meanings understood by those of ordinary skill in the art. Commonly used terms that are the same as dictionary definitions should be understood to have meanings consistent with the common content of the relevant technology and should not be overly idealized or interpreted as formal meanings unless explicitly mentioned in this application.

[0037] Furthermore, in the process of describing with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and repeated descriptions thereof are omitted. In the process of describing the embodiments, when it is determined that the detailed description of the related known technology will unnecessarily confuse the embodiments, the detailed description thereof is omitted.

[0038] In addition, in the description of the constituent elements of the embodiment, terms such as first, second, A, B, (a), (b) may be used. These terms are only used to distinguish the constituent element from another constituent element, and the nature, sequence or order of the constituent element is not limited by these terms. When a constituent element is described as being "connected", "combined" or "contacting" another constituent element, it should be understood that the constituent element can be directly connected or contacted to another constituent element, and it can also be understood that another constituent element is "connected", "combined" or "contacted" between each constituent element.

[0039] For constituent elements included in a certain embodiment and constituent elements having common functions, the same names may be used to describe in another embodiment. Unless otherwise mentioned, the description of a certain embodiment may be applicable to other embodiments, and its detailed description will be omitted within the scope of repetition.

[0040] In the following embodiments, "humectant" may refer to a substance that can promote the formation of visible smoke and / or aerosol. Humectants may include glycerol (GLY), propylene glycol (PG), ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but are not limited thereto. In the art, humectants may be used interchangeably with terms such as aerosol formers and wetting agents.

[0041] In the following embodiments, the term "aerosol-forming substrate" may refer to a material that can form an aerosol. An aerosol may include volatile compounds. An aerosol-forming substrate may be solid or liquid. For example, a solid aerosol-forming substrate may include solid materials based on tobacco raw materials, such as tobacco shreds, tobacco particles, and reconstituted tobacco. Reconstituted tobacco may be divided into slurry-type reconstituted tobacco leaves and paper-making type reconstituted tobacco leaves according to their preparation methods. A liquid aerosol-forming substrate may include a liquid composition based on nicotine, tobacco extracts, and / or various spices. However, the scope of the present disclosure is not limited to the above examples.

[0042] In the following embodiments, the term "aerosol-generating article" may refer to an article containing an aerosol-forming substrate, i.e., a medium, wherein an aerosol passes through the article and transfers nicotine contained in the medium. A representative example of an aerosol-generating article may be a cigarette. However, the scope of the present disclosure is not limited thereto.

[0043] In the following embodiments, the term "aerosol generating device" may refer to a device that generates an aerosol using an aerosol-forming substrate, and the generated aerosol can be directly inhaled into the lungs of a user through the user's mouth.

[0044] In the following embodiments, the term "upstream" or "upstream direction" may refer to a direction away from the mouth of a user (smoker), and the term "downstream" or "downstream direction" may refer to a direction close to the mouth of a user. The terms "upstream" and "downstream" may be used to describe the relative positions of components of an aerosol-generating article.

[0045] In the following embodiments, the term “puff” may refer to a user's inhalation where an aerosol is inhaled into the user's oral cavity, nasal cavity, or lungs through the user's mouth or nose.

[0046] Figure 1 is a block diagram of an aerosol generating system according to an embodiment, Figure 2a and Figure 2b FIG. 2 is a diagram schematically showing an aerosol generating system in which an aerosol generating article is combined with an aerosol generating device according to an embodiment. Figure 3 FIG. 4 is a diagram schematically showing the structure of an aerosol generating article according to an embodiment.

[0047] Reference Figures 1 to 3 According to an embodiment, an aerosol generating system 1 may include an aerosol generating device 11 and an aerosol generating article 12 .

[0048] Reference Figure 1 , Figure 2a and Figure 2b According to an embodiment, the aerosol generating device 11 may include a battery 111 , a control unit 112 , a vaporizer 113 and an elongated cavity 115 .

[0049] Figure 2a and Figure 2b The aerosol generating device 11 shown in the figure shows the components related to this embodiment. Therefore, those skilled in the art can understand that, except for Figure 2b and Figure 2b In addition to the components shown, the aerosol generating device 11 may further include other common components. In addition, the aerosol generating device 11 may be in a stick shape or a holder shape.

[0050] In one embodiment, the battery 111 can provide the power required for the aerosol generating device 11 to operate. For example, the battery 111 can supply current to the vaporizer 113 so that the vaporizer 113 heats the liquid composition. In addition, the battery 111 can also provide the power required for the operation of the display, sensor, motor, etc. installed in the aerosol generating device 11.

[0051] In one embodiment, the battery 111 may be a lithium iron phosphate (LiFePO4) battery, but is not limited to the above example. For example, the battery 111 may correspond to a lithium cobalt oxide (LiCoO2) battery, a lithium titanate battery, a lithium ion battery, and the like.

[0052] For example, the battery 111 may have a cylindrical shape with a diameter of 10 mm and a length of 37 mm, but is not limited thereto. For example, the capacity of the battery 111 may be 120 mAh to 250 mAh, but is not limited thereto. In addition, the battery 111 may be a rechargeable battery or a disposable battery. For example, when the battery 111 is rechargeable, the charge rate (C-rate) of the battery 111 may be 10C, and the discharge rate (C-rate) may be 10C to 20C, but is not limited thereto. In addition, for static use, the battery 111 may be manufactured to ensure more than 80% of the total capacity even if 2000 charge / discharge cycles are performed.

[0053] In one embodiment, the control unit 112 can control the overall operation of the aerosol generating device 11. Specifically, the control unit 112 not only controls the actions of the battery 111 and the vaporizer 113, but also controls the actions of other components in the aerosol generating device 11. In addition, the control unit 112 can also check the status of each component of the aerosol generating device 11 to determine whether the aerosol generating device 11 is in an operable state.

[0054] In one embodiment, the control unit 112 includes at least one processor. The processor can be implemented by an array of multiple logic gates, or by a combination of a general-purpose microprocessor and a memory storing an executable program for the microprocessor. In addition, those skilled in the art will appreciate that the processor can be implemented by other types of hardware.

[0055] In one embodiment, the vaporizer 113 can generate an aerosol by heating a liquid composition, and discharge the generated aerosol to the aerosol generating article 12, so that the generated aerosol can pass through the aerosol generating article 12 inserted into the elongated cavity 115. Therefore, tobacco flavor can be added to the aerosol passing through the aerosol generating article 12, and the user can inhale one end of the aerosol generating article 12 through the mouth, thereby inhaling the aerosol with tobacco flavor added. According to one embodiment, the vaporizer 113 can be called a cartomizer or an atomizer. According to one embodiment, the vaporizer 113 can be combined with the aerosol generating device 11 in a replaceable manner.

[0056] In one embodiment, the aerosol generating device 11 may further include a heater 114. The aerosol generating article 12 according to one embodiment may transfer nicotine under non-heating conditions. In addition, in the low-temperature heating mode performed by the heater 114, the nicotine transfer amount may be increased by promoting nicotine transfer. Compared with the non-heating mode, the low-temperature heating mode performed by the heater 114 may achieve a higher level of smoking sensation intensity, and the nicotine transfer amount may be easily adjusted through the non-heating mode and the low-temperature heating mode.

[0057] The heater 114 may be heated by the power supplied by the battery 111. For example, when the aerosol-generating article 12 is inserted into the aerosol sensing device 11, the heater 114 may be located outside the aerosol-generating article 12. Therefore, the heated heater 114 may increase the temperature of the aerosol-generating material in the aerosol-generating article 12.

[0058] For example, the heater 114 may be a resistive heater. For example, the heater 114 may include a conductive track, and the heater 114 may be heated as current flows through the conductive track. However, the heater 114 is not limited to the above examples, and any example that can heat the heater 114 to a desired temperature may be used without limitation. Here, the desired temperature may be preset in the aerosol generating device 11 or may be set by a user.

[0059] In addition, as another example, the heater 114 may be an induction heating heater. Specifically, the heater 114 may include a conductive coil for heating the aerosol generating article 12 by induction heating, and the aerosol generating article 12 may include a susceptor that can be heated by the induction heating heater.

[0060] For example, the heater 114 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 aerosol-generating article 12 depending on the shape of the heating element.

[0061] In addition, a plurality of heaters 114 may be provided in the aerosol generating device 11. In this case, the plurality of heaters 114 may be provided to be inserted into the interior of the aerosol generating article 12, or may be provided outside the aerosol generating article 12. In addition, a portion of the plurality of heaters 114 may be provided to be inserted into the interior of the aerosol generating article 12, and the rest may be provided outside the aerosol generating article 12.

[0062] In an embodiment, the aerosol-generating article 12 may be contained in an elongated cavity 115. In an embodiment, the heater 114 may be arranged to surround an outer surface of the elongated cavity 115, thereby heating the aerosol-generating article contained in the elongated cavity 115. The heater 114 according to an embodiment may be arranged to surround at least a portion of the outer surface of the elongated cavity 115.

[0063] In addition, the aerosol generating device 11 may include common components in addition to the battery 111, the control unit 112, the vaporizer 113 and the elongated cavity 115. For example, the aerosol generating device 11 may include a sensor 116, an output unit 117, a user input unit 118, a memory 119 and a communication unit 120.

[0064] The sensing unit 116 can sense the state of the aerosol generating device 11 or the state of the surroundings of the aerosol generating device 11, and send the sensed information to the control unit 112. Based on the sensed information, the control unit 112 can control the aerosol generating device 11 to perform various functions such as restricting smoking, determining whether to insert an aerosol generating product 12 (e.g., a cigarette, a cartridge, etc.), and displaying a notification.

[0065] The sensing portion 116 may include at least one of a temperature sensor 1161 , an insertion sensing sensor 1162 , and a suction sensor 1163 , but is not limited thereto.

[0066] The temperature sensor 1161 can sense the temperature at which the heater 114 (or the aerosol generating material) is heated. The aerosol generating device 11 may include a separate temperature sensor for sensing the temperature of the heater 114, or the heater 114 itself may be used as a temperature sensor. Alternatively, the temperature sensor 1161 may be provided around the battery 111 to monitor the temperature of the battery 111.

[0067] The insertion sensing sensor 1162 may sense the insertion and / or removal of the aerosol generating article 12. For example, the insertion sensing sensor 1162 may include at least one of a film sensor, a pressure sensor, a light sensor, a resistance sensor, a capacitance sensor, an inductance sensor, and an infrared sensor, which may sense a signal change according to the insertion and / or removal of the aerosol generating article 12.

[0068] The suction sensor 1163 can sense the suction from the user based on various physical changes in the airflow path or airflow channel. For example, the suction sensor 1163 can sense the suction from the user based on any one of temperature change, flow change, voltage change and pressure change.

[0069] In addition to the above-mentioned sensors (1161 to 1163), the sensing unit 116 may further include at least one of a temperature / humidity sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a gyroscope sensor, a position sensor (e.g., a global positioning system (GPS)), a proximity sensor, and an RGB sensor (illuminance sensor). Those skilled in the art can intuitively infer the function of the sensor from the name of the sensor, so a more detailed description thereof is omitted here.

[0070] The output unit 117 may output information about the state of the aerosol generating device 11 and provide it to the user. The output unit 117 may include at least one of a display unit 1171, a tactile unit 1172, and a sound output unit 1173, but is not limited thereto. When the display unit 1171 and a touch panel are provided in a layered structure to form a touch screen, the display unit 1171 may be used as an input device in addition to an output device.

[0071] The display unit 1171 can visually provide the user with information about the aerosol generating device 11. The information about the aerosol generating device 11 may include, for example, the charge / discharge state of the battery 111 of the aerosol generating device 11, the insertion / removal state of the aerosol generating article 12, or the use restriction state of the aerosol generating device 11 (for example, abnormal items detected), etc., and the display unit 1171 can output the information to the outside. The display unit 1171 may be, for example, a liquid crystal display panel (LCD), an organic light emitting display panel (OLED), etc. In addition, the display unit 1171 may also be in the form of a light emitting diode (LED) device.

[0072] The tactile portion 1172 may convert the electrical signal into mechanical stimulation or electrical stimulation and provide the user with information about the aerosol generating device 11 in a tactile manner. The tactile portion 1172 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0073] The sound output unit 1173 may provide the user with information about the aerosol generating device 11 in an auditory manner. For example, the sound output unit 1173 may convert an electrical signal into a sound signal and output the sound signal to the outside.

[0074] The user input unit 118 can receive information input from the user, and can also output information to the user. For example, the user input unit 118 can include a keyboard (key pad), a dome switch (dome switch), a touch pad (contact capacitance method, pressure resistance film method, infrared sensing method, surface ultrasonic conduction method, integral tension measurement method, piezoelectric effect method, etc.), a roller, a roller switch, etc., but is not limited to these. In addition, although in Figure 1 Although not shown, the aerosol generating device 11 may also include a connection interface such as a universal serial bus (USB) interface, and may be connected to another external device via a connection interface such as a USB interface to send and receive information or charge the battery 111.

[0075] The memory 119 is hardware for storing various data processed in the aerosol generating device 11, and can store data processed by the control unit 112 and data to be processed by the control unit 112. The memory 119 may include at least one of a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. The memory 119 may store the operation time of the aerosol generating device 11, the maximum number of puffs, the current number of puffs, at least one temperature distribution, and data associated with the smoking pattern of the user.

[0076] The communication unit 120 may include at least one component for communicating with another electronic device. For example, the communication unit 120 may include a short distance communication unit 1201 and a wireless communication unit 1202 .

[0077] The short-range wireless communication unit 1201 may include a Bluetooth communication unit, a BLE communication unit, a near field communication unit, a WLAN (Wi-Fi) communication unit, a ZigBee communication unit, an Infrared Data Association (IrDA) communication unit, a Wi-Fi Direct (WFD) communication unit, an Ultra-Wideband (UWB) communication unit, and an Ant+ communication unit, but is not limited thereto.

[0078] The wireless communication unit 1202 may include a cellular network communication unit, an Internet communication unit, a computer network (e.g., a local area network (LAN) or a wide area network (WAN)) communication unit, etc., but is not limited thereto. The wireless communication unit 1202 may use user information (e.g., an International Mobile Subscriber Identity (IMSI)) to identify and authenticate the aerosol generating device 11 in the communication network.

[0079] In one embodiment, the aerosol generating device 11 may include at least one input device (e.g., a button) and / or a terminal combined with the bracket through which the user can control the function of the aerosol generating device 11. For example, the user can use the input device of the aerosol generating device 100 to perform various functions. The user can perform a desired function among the multiple functions of the aerosol generating device 11 by adjusting the number of times the input device is pressed (e.g., once, twice, etc.) or the time for pressing the input device (e.g., 0.1 seconds, 0.2 seconds, etc.). When the user operates the input device, a function of preheating the heating element of the vaporizer 113, a function of adjusting the temperature of the heating element of the vaporizer 113, a function of cleaning the space into which the aerosol generating article is inserted, a function of checking whether the aerosol generating device 11 is in an operable state, a function of displaying the remaining power (available power) of the battery 111, a function of resetting the aerosol generating device 11, etc. can be performed. However, the functions of the aerosol generating device 11 are not limited to the above examples.

[0080] In one embodiment, the aerosol generating device 11 may include a suction sensing sensor, a temperature sensing sensor and / or an aerosol generating article insertion sensing sensor. In addition, the aerosol generating device 11 may be manufactured to have a structure that allows external air to flow in / out even when the aerosol generating article is inserted.

[0081] According to one embodiment, Figure 2a As shown, the aerosol generating device 11 may include a vaporizer 113 and an elongated cavity 115 arranged in series. According to another embodiment, as Figure 2b As shown, the aerosol generating device 11 may include a vaporizer 113 and an elongated cavity 115 arranged in parallel. In addition, the arrangement of the battery 111, the control unit 112, the vaporizer 113 and the elongated cavity 115 of the aerosol generating device 11 is not limited to Figure 2a and Figure 2b , there may be many variations. For example, the aerosol generating device 11 may include a heater (e.g., Figure 1 Heater 114).

[0082] Through the airflow passage in the aerosol generating device 11, the aerosol generated by the vaporizer 113 can flow into the elongated cavity 115 and pass through the aerosol generating article 12. Therefore, tobacco flavor or nicotine can be added to the aerosol passing through the aerosol generating article 12, and the user can inhale one end of the aerosol generating article 12 through the mouth, thereby inhaling the aerosol added with tobacco flavor or nicotine.

[0083] According to an embodiment, the vaporizer 113 may include a liquid storage portion, a liquid transmission device, a heating element, and an air flow path. Each component of the vaporizer 113 may be made of polycarbonate material, but is not limited thereto.

[0084] In one embodiment, the liquid storage unit can store a liquid composition that can generate an aerosol when heated. According to one embodiment, the liquid composition can be a liquid containing a tobacco material, which includes a volatile tobacco aroma component, and according to another embodiment, the liquid composition can be a liquid containing a non-tobacco material. In addition, the liquid composition can store a liquid with a storage capacity of 0.1 to 2.0 mL, but is not limited thereto. In addition, the liquid storage unit can be interchangeably combined in the vaporizer 113.

[0085] For example, the liquid composition may include water, solvents, ethanol, plant extracts, spices, flavorings, or vitamin mixtures. Spices may include menthol, peppermint, spearmint oil, various fruity ingredients, etc., but are not limited thereto. Flavorings may include ingredients that provide users with various flavors or fragrances. The vitamin mixture may be a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but is not limited thereto. The liquid composition may also include an aerosol former, such as glycerol and propylene glycol.

[0086] In one embodiment, the liquid transfer device can transfer the liquid composition in the liquid storage part to the heating element. In one embodiment, the liquid transfer device can be a wick such as cotton fiber, ceramic fiber, glass fiber or porous ceramic, and can use capillary action to transfer the liquid composition in the liquid storage part to the heating element.

[0087] In one embodiment, the heating element may be an element for heating the liquid composition transferred by the liquid transfer device, and may be a metal heating wire, a metal heating plate, a ceramic heater, etc. In addition, the heating element may be composed of a conductive wire such as a nickel-chromium wire, and may be arranged to be wound around the liquid transfer device. The heating element may be heated when current is supplied, and transfer heat to the liquid composition in contact with the heating element, thereby heating the liquid composition. Thus, an aerosol may be generated.

[0088] In an embodiment, the air flow passage may be arranged to discharge the generated aerosol towards the inserted aerosol-generating article 12. That is, the aerosol generated by the heating element may be discharged through the air flow passage.

[0089] In one embodiment, the control unit 112 can control the temperature of the heating element by controlling the current provided to the heating element. Therefore, the control unit 112 can control the amount of aerosol generated by the liquid composition by controlling the current provided to the heating element. In addition, the control unit 112 can also control to provide current to the heating element during a preset time when the user's puff is sensed. For example, the control unit 112 can control to provide current to the heating element within 1 to 5 seconds after the user's puff is sensed.

[0090] In one embodiment, the control unit 112 can control the amount of aerosol discharged from the vaporizer 113 by controlling the open and closed state of the airflow passage. Specifically, the control unit 112 can increase the amount of aerosol discharged from the vaporizer 113 by increasing the size of the pores in the airflow passage, and reduce the amount of aerosol discharged from the vaporizer 113 by reducing the size of the pores in the airflow passage. For example, the control unit 112 can control the pores in the airflow passage using a dial method.

[0091] In one embodiment, when the liquid composition in the liquid storage portion is less than a preset amount, the control portion 112 may notify the user of insufficient liquid composition through a vibration motor or a display screen.

[0092] Reference Figure 3 According to an embodiment, the aerosol generating article 12 may include a first section 121 , a medium section 122 , a second section 123 and a wrapper 125 .

[0093] In one embodiment, at least one wrapping paper 125 may be used to wrap the aerosol-generating article 12. At least one hole for external air to flow in or internal gas to flow out may be formed on the wrapping paper 125. The wrapping paper 125 may include a material with high thermal conductivity.

[0094] For example, the first section 121 may be wrapped with a first wrapper 1251, the media section 122 may be wrapped with a second wrapper 1252, and the second section 123 may be wrapped with a third wrapper 1253. In addition, the aerosol generating article 12 may be completely wrapped again with a fifth wrapper 1255.

[0095] In one embodiment, the first wrapping paper 1251, the second wrapping paper 1252, and the third wrapping paper 1253 may be made of porous rolled paper. For example, the porosity of the first wrapping paper 1251, the second wrapping paper 1252, and the third wrapping paper 1253 may be 35000CU, but is not limited thereto. In addition, the thickness of the first wrapping paper 1251, the second wrapping paper 1252, and the third wrapping paper 1253 may be in the range of 70 μm to 80 μm, respectively. In addition, the basis weight of the first wrapping paper 1251, the second wrapping paper 1252, and the third wrapping paper 1253 may be in the range of 20 g / m 2 Up to 25g / m 2 within the range.

[0096] For example, the second wrapping paper 1252 may include an aluminum component. For example, the second wrapping paper 1252 may be a combination of ordinary filter roll paper and a metal foil (e.g., aluminum foil). In addition, the second wrapping paper 1252 may be made of sterile paper (MFW).

[0097] In one embodiment, the fifth wrapping paper 1255 may be made of sterile paper (MFW). For example, the basis weight of the fifth wrapping paper 1255 may be 57 g / m 2 Up to 63g / m 2 In addition, the thickness of the fifth wrapping paper 1255 may be in the range of 64 μm to 70 μm.

[0098] In one embodiment, the first section 121 may be made of a cellulose acetate filter. In addition, the first section 121 may also be made of a paper filter and a porous molded part. For example, the length of the first section 121 may be 4 to 15 mm, but is not limited thereto. In addition, the first section 121 may be colored or scented.

[0099] In one embodiment, the media segment 122 may include a cavity, in which a medium may be filled. For example, the media matrix filled into the media segment 122 may include at least one component of granular tobacco (tobacco particles), reconstituted tobacco, and tobacco shreds. For example, the appropriate length range of the media segment 122 may be 6 to 18 mm, but is not limited thereto.

[0100] In general, the moisture and / or aerosol forming agent content of tobacco particles is significantly lower than that of other types of tobacco materials (such as shredded tobacco, reconstituted tobacco, etc.), so the generation of visible smoke can be greatly reduced, which is conducive to the aerosol generating device 11 to achieve a smoke-free function. However, the diameter, density, filling rate, composition ratio of constituent materials, heating temperature, etc. of tobacco particles may vary depending on the implementation. The diameter of tobacco particles can be about 0.3mm to 1.2mm. Within this numerical range, the appropriate hardness and ease of manufacture of tobacco particles can be guaranteed, and the probability of eddy current generation in the cavity can be increased.

[0101] In addition, the medium segment 122 may also include an aerosol generating material, such as glycerin, etc. In addition, the medium segment 122 may also include other additives, such as flavoring agents, humectants and / or organic acids. In addition, the medium segment 122 may also include a flavoring liquid, such as menthol or a moisturizer, etc., which is added by spraying onto the medium segment 122.

[0102] In one embodiment, the media segment 122 may include a media matrix that has been treated with pH. For example, the media matrix may be treated with pH by a pH adjusting agent to have alkalinity, and the pH adjusting agent may be alkaline, for example, may include at least any one of potassium carbonate (K2CO3), sodium bicarbonate (NaHCO3), and calcium oxide (CaO). However, the materials included in the pH adjusting agent are not limited to the above examples, and materials that produce less negative odors during smoking may also be used. Alkaline pH adjusting agents may increase the pH of the media matrix included in the media segment 122. Compared with a media matrix that has not been treated with an alkaline pH adjusting agent, a media matrix that has been treated with alkaline pH increases nicotine emissions when heated. That is, even if the media segment 122 is heated at a low temperature, the media matrix that has been treated with alkaline pH can obtain sufficient nicotine production.

[0103] In one embodiment, the medium segment 122 may include pulp-type reconstituted tobacco leaves or paper-making reconstituted tobacco leaves with a pH value adjusted to 7.0 to 9.5, or may include tobacco particles with a pH value adjusted to 7.0 to 9.5. The medium matrix may include nicotine, and when pH-treated, free nicotine (gas nicotine) may be transferred from the medium matrix even under non-heating conditions or relatively low temperature conditions. That is, by adjusting the pH value of the medium matrix of the medium segment 122 to a range of 7.0 to 9.5, volatile free nicotine may be transferred under non-heating conditions and a sufficient level of smoking intensity may be achieved.

[0104] In addition, when the aerosol generating device 11 includes a heater (e.g., Figure 1 When the heater 114 is used, since nicotine transfer is more promoted by low-temperature heating, a relatively higher level of smoking sensation intensity can be achieved compared to the non-heating mode. Therefore, according to one embodiment, the nicotine transfer amount can be easily adjusted even by non-heating or low-temperature heating in the aerosol-generating article 12.

[0105] In one embodiment, the second section 123 may be made of a cellulose acetate filter. In addition, the second section 123 may include at least one fragrance capsule. For example, the second section 123 may be a cellulose acetate filter in which at least one fragrance capsule is inserted. In addition, the second section 123 may be made of a cellulose acetate filter mixed with a fragrance material.

[0106] In one embodiment, nicotine may be adsorbed to at least one of the first segment 121 and the second segment 123. Since the pH value of the medium segment 122 is in the range of 7.0 to 9.5, the nicotine in the medium segment 122 actively changes to a free nicotine state and is transferred to the first segment 121 or the second segment 123 even under non-heating conditions. Therefore, the nicotine transferred from the medium segment 122 may be adsorbed to at least one of the first segment 121 and the second segment 123. Since not only the medium segment 122 but also the first segment 121 or the second segment 123 contains nicotine, the aerosol generating article 12 may be used directly even without preheating the aerosol generating device 11. This may not only increase the convenience of the user, but also provide a satisfying feeling of smoking according to the sufficient transfer of nicotine even without heating.

[0107] According to one embodiment, a nicotine transfer treatment process may be performed on the aerosol-generating article 12. For example, the nicotine transfer treatment process may be performed as follows. First, the pH of the medium segment 122 may be treated within a range of 7.0 to 9.5, and the first segment 121 and the second segment 123 may be combined via the wrapping paper 125 across the medium segment 122. Then, the aerosol-generating article 12 may undergo a nicotine transfer period at room temperature. The nicotine transfer period may be more than 4 weeks.

[0108] Table 1 below shows the nicotine transfer over time of an aerosol-generating article consisting of a first segment 121, a first medium segment (eg, medium segment 122), a second medium segment, and a second segment 123. The following experiments were conducted at a temperature of 22°C.

[0109] Referring to Table 1, it can be seen that nicotine is transferred and adsorbed to the first section 121 and the second section 123 after 4 weeks, and according to the smoke component analysis value, it can be seen that the amount of nicotine is increasing, while the atomization amount remains constant.

[0110] [Table 1]

[0111]

[0112] In one embodiment, the first section 121 or the second section 123 of the aerosol-generating article 12 may be manufactured by cutting a cellulose acetate filter into which free nicotine emitted from a medium raw material comprising nicotine is transferred.

[0113] For example, a media feedstock portion including a nicotine-containing material (e.g., reconstituted tobacco leaves, wet tobacco particles, or tobacco leaves) may be provided, and the media feedstock portion may be pH treated and contained in a sealed chamber. The emission of free nicotine from the media feedstock portion may then be induced by heating. A filter portion may be provided in the chamber, and the filter portion may have a block or cylindrical shape including a cellulose acetate component. Nicotine transfer may occur in which free nicotine moves from the media feedstock portion to the filter portion, and a circulation unit (e.g., a fan) facilitates the smooth transfer of nicotine. After a predetermined coordination period (transfer / adsorption period), a sufficient amount of nicotine is adsorbed into the filter portion, and the filter portion is cut to conform to a specified shape. The cut filter may be applied to an aerosol-generating article (e.g., Figure 3 The first section of the aerosol generating article 12) (e.g., Figure 3 121) or the second paragraph (e.g. Figure 3 123) in the second paragraph of the

[0114] Reference Figures 1 to 3 In an aerosol generating system 1 according to an embodiment, when the aerosol generating device 11 includes a heater (e.g., Figure 1 When the heater 114 is used, the control unit 112 can control the temperature at which the heater 114 heats the aerosol generating article 12. For example, the control unit 112 can adjust the temperature at which the heater 114 heats the first segment 121, the medium segment 122, or the second segment 123.

[0115] In one embodiment, the control unit 112 may control the heater 114 in a non-heating mode and a low-temperature heating mode. In the non-heating mode, the heater 114 may not heat the aerosol generating product 12, and at this time, the first section 121, the medium section 122, or the second section 123 may not be heated. In the low-temperature heating mode, the heater 114 may heat the aerosol generating product 12 at a low temperature to above 0°C and below 150°C. At this time, the first section 121, the medium section 122, or the second section 123 may be heated at a low temperature to above 0°C and below 150°C. When the aerosol generating product 12 is switched between the non-heating mode and the low-temperature heating mode, the smoking sensation intensity may be adjusted. For example, in the non-heating mode, the amount of nicotine transferred from the first section 121, the medium section 122, or the second section 123 is relatively small, so the smoking sensation intensity may be relatively low. On the contrary, in the low temperature heating mode, the smoking sensation intensity can be relatively high compared to the non-heating mode because the amount of nicotine transferred from the first segment 121, the medium segment 122 or the second segment 123 is relatively large. Therefore, in the low temperature heating mode, even if the medium segment 122 is not treated to a high pH value, sufficient smoking sensation intensity can be ensured.

[0116] although Figure 3The medium segment 122 is shown to be located between the first segment 121 and the second segment 123, but the structure of the aerosol generating article 121 according to an embodiment is not limited thereto. For example, an atomization segment containing a moisturizer or another segment to which nicotine is transferred may be provided on the upstream side of the first segment 121. Alternatively, another segment to which nicotine is transferred may be provided between the first segment 121 and the medium segment 122. Alternatively, another segment to which nicotine is adsorbed may be provided at the downstream end of the second segment 123, or another segment to which nicotine is adsorbed may be provided between the second segment 123 and the medium segment 122. Alternatively, all segments may be composed of a cellulose acetate filter segment to which nicotine is transferred.

[0117] In one embodiment, the nicotine adsorption amount per unit length of the first section 121 of the aerosol-generating article 12 may be equal to or greater than the nicotine adsorption amount per unit length of the second section 123. This will be described in detail below.

[0118] Figure 4 Nicotine transfer testing for each segment of the aerosol-generating article is shown.

[0119] Reference Figure 4 In the present invention, cellulose acetate (CA) filters with nicotine transferred were applied to different segments to prepare samples for analysis of nicotine residue and nicotine transfer. Figure 4 In the experimental example (a), the cellulose acetate filter with nicotine transferred was set on the most upstream side segment; in the experimental example (b), the cellulose acetate filter with nicotine transferred was set on the second segment from the upstream side; in the experimental example (c), the cellulose acetate filter with nicotine transferred was set on the third segment from the upstream side; in the experimental example (d), the cellulose acetate filter with nicotine transferred was set on the most downstream side segment. In the experimental example (e), in order to compare with the above experimental examples, the cellulose acetate filter with nicotine transferred was set on all the segments. At this time, the smoking resistance or filtering effect in each experimental example was set to be the same.

[0120] The following [Table 2] shows the Figure 4 The experimental results obtained.

[0121] [Table 2]

[0122]

[0123] Reference Figure 4[Table 2], comparing Experimental Example (a) (the cellulose acetate filter to which nicotine is transferred is arranged on the upstream side) with Experimental Example (d) (the cellulose acetate filter to which nicotine is transferred is arranged on the downstream side), it can be seen that the amount of nicotine transferred in Experimental Example (d) is greater. In addition, when Experimental Examples (a), (b), (c), and (d) are compared in sequence, it can be seen that the amount of nicotine transferred increases when the cellulose acetate filter to which nicotine is transferred is arranged on the downstream side rather than the upstream side.

[0124] In addition, in Experimental Example (a), it can be found that the nicotine transferred from the first section cannot be completely transferred to the oral cavity, but remains in the second, third and fourth sections. The same trend can be found in Experimental Example (b) and Experimental Example (c). This can also be confirmed in Experimental Example (e), and a trend of increasing nicotine residue from upstream to downstream is shown.

[0125] As the cellulose acetate filter to which nicotine is transferred is arranged downstream, the amount of nicotine transferred can be increased due to the reduced filtering effect. Therefore, the cellulose acetate filter to which nicotine is transferred located on the downstream side can mainly participate in the transfer of nicotine during the initial puff of smoking.

[0126] As the cellulose acetate filter to which nicotine is transferred is arranged upstream, the filtering effect of the cellulose acetate filter located downstream becomes greater. Therefore, the cellulose acetate filter to which nicotine is transferred located upstream can mainly participate in the transfer of nicotine during the latter part of smoking.

[0127] Since the amount of nicotine adsorbed by the first segment 121 of the aerosol generating article 12 according to an embodiment is greater than the amount of nicotine adsorbed by the second segment 123, when the cigarette is inhaled in the early stage of smoking, the nicotine in the second segment 123 is mainly transferred to the oral cavity; when the cigarette is inhaled in the middle stage of smoking, part of the nicotine in the first segment 121 is transferred to the oral cavity; when the cigarette is inhaled in the late stage of smoking, the remaining nicotine in the first segment 121 is transferred to the oral cavity. At this time, the remaining nicotine from the first segment 121 can be transferred to the oral cavity after being adsorbed (filtered) to the second segment 123.

[0128] That is, the reason why a larger amount of nicotine is transferred to the first section 121 is to ensure uniformity of the smoking sensation, and the nicotine adsorbed on the first section 121 helps the latter stage of smoking, while the nicotine adsorbed on the second section 123 helps the former stage of smoking. That is, since the nicotine adsorbed on the first section 121 has to pass through more obstacles to reach the oral cavity than the nicotine adsorbed on the second section 123, it is preferred that more nicotine is adsorbed on the first section 121.

[0129] Therefore, since the amount of nicotine adsorbed in the first section 121 of the aerosol generating article 12 according to one embodiment is greater than the amount of nicotine adsorbed in the second section 123, the amount of nicotine transferred to the oral cavity becomes uniform during continuous smoking, thereby ensuring a uniform smoking sensation.

[0130] In one embodiment, the inhalation resistance of the first section 121 may be greater than or equal to the inhalation resistance of the second section 123. Preferably, the inhalation resistance per unit length of the first section 121 may be greater than or equal to the inhalation resistance per unit length of the second section 123. The greater the inhalation resistance, the greater the adsorption amount of nicotine.

[0131] For example, when the first segment 121 is made of cellulose acetate and the second segment 123 is also made of cellulose acetate, the mass per unit length of the cellulose acetate of the first segment 121 may be greater than or equal to the mass per unit length of the cellulose acetate of the second segment 121. Since the amount per unit length of the cellulose acetate of the first segment 121 is greater than or equal to the amount per unit length of the cellulose acetate of the second segment 123, the inhalation resistance of the first segment 121 may be greater than or equal to the inhalation resistance of the second segment 123, and thus the amount of nicotine transferred to the first segment 121 may be greater than or equal to the amount of nicotine transferred to the second segment 123.

[0132] The following [Table 3] shows the experimental results of the nicotine transfer amount according to the inhalation resistance.

[0133] [Table 3]

[0134]

[0135]

[0136] Referring to [Table 3], in each experimental example, in the cavity filter (e.g., Figure 3 After the pH treated tobacco media was filled into the media segment 122 of the embodiment, the transfer of the pH treated tobacco media to the cellulose acetate filter (e.g., Figure 3 The nicotine amount of the first section 121 or the second section 123 of the present invention is calculated. In each experimental example, two samples (sample 1 and sample 2) were tested and the average value (avg) was calculated. At this time, the plasticizer applied to each acetate filter was based on the same addition amount.

[0137] In Experimental Example (a) and Experimental Example (b), the experiment was conducted under the same conditions, wherein 4% triacetin (TA) was applied as a plasticizer. In Experimental Example (a), the inhalation resistance was set to 100 mmH2O; in Experimental Example (b), the inhalation resistance was set to 140 mmH2O. Comparing the average nicotine amount transferred on the acetate filter of Experimental Example (a) and Experimental Example (b), it can be seen that the average nicotine transfer amount on each acetate filter segment of Experimental Example (a) is 0.98 mg, and the average nicotine transfer amount on each acetate filter segment of Experimental Example (b) is 1.04 mg.

[0138] Similarly, in Experimental Example (c) and Experimental Example (d), the experiment was conducted under the same conditions, wherein 7% TA was applied as a plasticizer. In Experimental Example (c), the inhalation resistance was set to 100 mmH2O; in Experimental Example (d), the inhalation resistance was set to 140 mmH2O. At this time, the average nicotine transfer amount per acetate filter segment of Experimental Example (c) was 1.19 mg, and the average nicotine transfer amount per acetate filter segment of Experimental Example (d) was 1.26 mg.

[0139] In addition, in Experimental Example (e) and Experimental Example (f), the experiment was conducted under the same conditions, wherein 4% triethyl citrate (TEC) was applied as a plasticizer. In Experimental Example (e), the inhalation resistance was set to 100 mmH2O; in Experimental Example (f), the inhalation resistance was set to 140 mmH2O. Comparing the average nicotine amount transferred on the acetate filter of Experimental Example (e) and Experimental Example (f), it can be seen that the average nicotine transfer amount on each acetate filter segment of Experimental Example (e) is 0.68 mg, and the average nicotine transfer amount on each acetate filter segment of Experimental Example (f) is 0.74 mg.

[0140] Similarly, in Experimental Example (g) and Experimental Example (h), the experiment was conducted under the same conditions, wherein 7% TEC was applied as a plasticizer. In Experimental Example (g), the inhalation resistance was set to 100 mmH2O; in Experimental Example (h), the inhalation resistance was set to 140 mmH2O. At this time, the average nicotine transfer amount per acetate filter segment of Experimental Example (g) was 0.91 mg, and the average nicotine transfer amount per acetate filter segment of Experimental Example (h) was 1.01 mg.

[0141] It can be seen from [Table 3] that under the same conditions, as the inhalation resistance increases, the amount of nicotine transferred also increases. Therefore, when the inhalation resistance of the first section 121 of the smoking article 12 according to an embodiment is equal to or greater than the inhalation resistance of the second section 123, the nicotine adsorption amount per unit length of the first section 121 can be set to be equal to or greater than the nicotine adsorption amount per unit length of the second section 123.

[0142] In one embodiment, when the first segment 121 and the second segment are made of cellulose acetate, the mono denier of the cellulose acetate of the first segment 121 may be less than or equal to the mono denier of the cellulose acetate of the second segment 123 .

[0143] Since the denier represents the weight of a strand of cellulose acetate, at the same density, the lower the denier, the larger the surface area. Therefore, the smaller the denier of cellulose acetate in the first segment 121 is than the denier of cellulose acetate in the second segment 123, the more nicotine adsorbed into the first segment 121 is than the amount of nicotine adsorbed into the second segment 123.

[0144] The following [Table 4] shows the experimental results of the nicotine transfer amount of each cellulose acetate tow.

[0145] [Table 4]

[0146] Tow Item The first section (10mm) Particles Second section (6mm) The third section (10mm) Experimental example (a) 9YPD123 0.78 2.99 0.49 0.12 Experimental example (b) 12Y PD123 0.70 3.80 0.43 0.11

[0147] The experimental conditions are as follows. The experimental object sample is arranged in the first section (for example, Figure 3 The first segment 121), the particle segment (e.g., Figure 3 The medium segment 122), the second segment (for example, Figure 3 The first and second sections were applied with TA 11% plasticizer, and the third section was applied with TA 4%. Nicotine was transferred at 40° C. for three days while vacuum packaging the subject samples.

[0148] At this time, the mono denier of the cellulose acetate used in Experimental Example (a) was 9 denier (9Y), and the mono denier of the cellulose acetate used in Experimental Example (b) was 12 denier (12Y). In both examples, the air intake resistance was set to 123 mmH2O (PD123).

[0149] The nicotine transfer amount of the first segment was 0.70 mg in Experimental Example (a) and 0.70 mg in Experimental Example (b).

[0150] The nicotine transfer amount of the second segment was 0.49 mg in Experimental Example (a) and 0.43 mg in Experimental Example (b).

[0151] In addition, the nicotine transfer amount of the third segment was 0.12 mg in Experimental Example (a) and 0.11 mg in Experimental Example (b).

[0152] It can be seen from [Table 4] that, regardless of the segment, the adsorption of nicotine in the experimental example (a) with a lower cellulose acetate denier is more active than that in the experimental example (b). Therefore, since the cellulose acetate denier of the first segment 121 of the smoking article 12 according to an embodiment is less than or equal to the cellulose acetate denier of the second segment 123, the amount of nicotine adsorbed per unit length of the first segment 121 can be set to be greater than or equal to the amount of nicotine adsorbed per unit length of the second segment 123.

[0153] According to an embodiment of the aerosol generating article 12 and the aerosol generating system 1 including the same, the aerosol generating article 12 can be used directly without preheating the aerosol generating device 11, which can improve user convenience and provide smoking satisfaction to the user by ensuring sufficient nicotine transfer even in the non-heating mode. In addition, since the aerosol generating device 11 according to an embodiment may not include a heater, the effect of extending the service life of the device can be expected.

[0154] The description of the above embodiments is only an example, and it will be appreciated by those skilled in the art that various modifications and other equivalent embodiments are also feasible. Therefore, the scope of the present disclosure should be defined by the scope of the appended claims, and all differences within the scope equivalent to the content described in the claims will be interpreted as being included in the protection scope defined by the claims.

[0155] The features and aspects of any of the above-mentioned embodiments may be combined with the features and aspects of any other embodiments without causing any obvious technical conflicts.

Claims

1. An aerosol generating article, in, include: Paragraph 1; as well as The second section is arranged on the downstream side of the first section, Nicotine is adsorbed into the first segment and the second segment. The inhalation resistance of the first section is greater than or equal to the inhalation resistance of the second section.

2. An aerosol-generating article according to claim 1, wherein An inhalation resistance per unit length of the first section is greater than or equal to an inhalation resistance per unit length of the second section.

3. The aerosol-generating article of claim 1 , wherein: The first segment and the second segment are made of cellulose acetate, The mass of cellulose acetate per unit length of the first segment is greater than or equal to the mass of cellulose acetate per unit length of the second segment.

4. An aerosol-generating article according to claim 3, wherein The denier of the cellulose acetate of the first segment is less than or equal to the denier of the cellulose acetate of the second segment.

5. The aerosol-generating article of claim 1 , wherein: Also includes: a dielectric segment disposed between the first segment and the second segment, The media segment includes a pH treated tobacco medium, and the nicotine adsorbed into the first segment or the nicotine adsorbed into the second segment is transferred from the media segment.

6. An aerosol-generating article according to claim 5, wherein The medium segment is pH-treated so that the pH is within a range of not less than 7.0 and not more than 9.

5.

7. The aerosol-generating article of claim 1 , wherein: The first section or the second section is made by cutting a filter portion into which free nicotine discharged from a medium raw material including nicotine is transferred.

8. An aerosol generating system, in, include: Aerosol-generating articles; and An aerosol generating device comprises a control portion, an elongated cavity, and a vaporizer, wherein the control portion comprises at least one processor, the elongated cavity is configured to accommodate the aerosol generating article, and the vaporizer is configured to generate an aerosol by heating a liquid composition and discharge the aerosol to the aerosol generating article. The aerosol generating article comprises: The first paragraph; and The second section is arranged on the downstream side of the first section, The first section or the second section is composed of cellulose acetate adsorbed with nicotine, The denier of the cellulose acetate of the first segment is less than or equal to the denier of the cellulose acetate of the second segment.

9. An aerosol-generating article according to claim 8, wherein An inhalation resistance per unit length of the first section is greater than or equal to an inhalation resistance per unit length of the second section.

10. An aerosol generating system according to claim 8, wherein: The aerosol-generating article further comprises a media segment disposed between the first segment and the second segment, The media segment includes a pH-treated tobacco media, Nicotine adsorbed into the first segment or nicotine adsorbed into the second segment is transferred from the media segment.

11. An aerosol generating system according to claim 10, wherein: The aerosol generating device further comprises a heater for heating the first segment, the medium segment or the second segment, The control part controls the heater to heat the temperature of the first section, the medium section, or the second section.

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