Aerosol generating article and aerosol generating system

Abstract

An aerosol generating article according to various embodiments includes an atomizing section, and a medium section which is pH-treated and disposed downstream of the atomizing section; wherein, when the atomizing section is heated, heat of the heated atomizing section is indirectly transferred to the medium section.

Description

Technical Field

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

[0002] Recently, there has been an increasing demand for alternatives to overcome the drawbacks of regular cigarettes. For example, there is a growing need for devices that generate aerosols by electrically heating a cigarette stick (e.g., cigarette-type electronic cigarettes). Therefore, research is actively underway on electrically heated aerosol generating devices and cigarette sticks (or aerosol generating articles) used in such devices. For instance, Korean Patent Publication No. 10-2017-0132823 discloses a non-combustible flavor inhaler, a flavor inhalation source unit, and an atomizing unit. Summary of the Invention

[0003] The problem the invention aims to solve

[0004] One embodiment aims to provide an aerosol generating article and an aerosol generating system including the article, wherein the aerosol generating article can achieve a desired amount of nicotine transfer even when the pH is treated at a relatively low level by indirect heating.

[0005] One embodiment aims to provide an aerosol generation system that can generate aerosols using an aerosol generation device that is not equipped with a separate vaporizer.

[0006] One embodiment aims to provide an aerosol generating article and an aerosol generating system including the article, wherein the aerosol generating article can minimize instability caused by free nicotine based on pH adjustment.

[0007] means for solving problems

[0008] Aerosol generating articles according to various embodiments include: an atomizing section; and a medium section, which is pH-treated and disposed downstream of the atomizing section; wherein, when the atomizing section is heated, the heat from the heated atomizing section can be indirectly transferred to the medium section.

[0009] It may also include a filter section, which is located downstream of the medium section and adsorbs nicotine.

[0010] Nicotine adsorbed into the filter section can be transferred from the medium section.

[0011] The medium substrate can be pH treated to achieve a pH range of 7.0 to 9.5.

[0012] It may also include a thermally conductive packaging material for enclosing the atomizing segment, and the thermally conductive packaging material may further enclose the medium segment.

[0013] The media substrate filling the media segment may include at least one component of reconstituted tobacco and tobacco particles.

[0014] The humectant filling the atomizing section may include at least one of glycerin and propylene glycol.

[0015] An aerosol generating system according to various embodiments includes an aerosol generating article and an aerosol generating device; the aerosol generating article includes: an atomizing section, a medium section disposed downstream of the atomizing section, and a filtration section disposed downstream of the medium section; the aerosol generating device includes: a control unit including at least one processor, a heater for heating the aerosol generating article, and an elongated cavity for containing the aerosol generating article; wherein nicotine is adsorbed in the filtration section.

[0016] The media substrate is pH treated, and nicotine adsorbed into the filter section can be transferred from the media section.

[0017] The medium substrate is pH treated, and when the heater heats the atomizing section, the heat from the heated atomizing section can be indirectly transferred to the medium section.

[0018] The aerosol generating article may also include a thermally conductive packaging material that encloses at least one of the atomizing section and the medium section, and includes an aluminum component.

[0019] Invention Effects

[0020] According to one embodiment, an aerosol generating article and an aerosol generating system can achieve efficient and uniform nicotine transfer.

[0021] According to one embodiment, an aerosol generating article and an aerosol generating system can provide a uniform smoke intensity.

[0022] According to one embodiment, an aerosol generating article and an aerosol generating system can reduce the occurrence of unpleasant odors.

[0023] The effects of the aerosol generation system according to one embodiment are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0024] The accompanying drawings illustrate preferred embodiments of the invention and, together with the detailed description of the invention, serve to further understand the technical concept of the invention. Therefore, the invention should not be construed as limited to the content described in these drawings.

[0025] Figure 1 This is a block diagram of an aerosol-generating article according to an embodiment.

[0026] Figure 2 This is a schematic diagram illustrating the structure of an aerosol generating device.

[0027] Figure 3 This is a schematic diagram illustrating the structure of an aerosol-generating article according to one embodiment.

[0028] Figure 4 The accompanying drawings are provided for illustrative purposes, showing an aerosol generating system according to one embodiment, wherein an aerosol generating article is attached to an aerosol generating device. Detailed Implementation

[0029] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, various modifications can be made to the embodiments, and the scope of the present invention is not limited or restricted by the embodiments. All variations, equivalents, or substitutions of the embodiments are included within the scope of the claims.

[0030] The terminology used in the embodiments is for illustrative purposes only and is not intended to limit the embodiments. Unless otherwise specified in the content, a single quantity includes multiple quantities. In this specification, terms such as "comprising" or "having" are used to express the presence of the features, numbers, steps, operations, constituent elements, accessories, or combinations thereof described in the specification, and do not exclude the presence of one or more other features, numbers, steps, operations, constituent elements, accessories, or combinations thereof, or additional functions.

[0031] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the ordinary meaning as understood by one of ordinary skill in the art. Terms that are commonly used and are identical to their dictionary definitions should be understood to have meanings consistent with the general content of the relevant art, and should not be overly idealized or interpreted as having a formal meaning unless explicitly mentioned in this application.

[0032] Furthermore, in the description with reference to the accompanying drawings, identical constituent elements are assigned the same reference numerals, regardless of the drawing references, and repeated descriptions of these elements are omitted. In describing embodiments, detailed descriptions of relevant well-known technologies are omitted when it is determined that such detailed descriptions would unnecessarily obscure the embodiments.

[0033] Furthermore, when describing the constituent elements of the embodiments, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish one constituent element from another, and the nature, sequence, or order of the elements is not limited by these terms. When a constituent element is described as "connected," "bonded," or "in contact" with another constituent element, it should be understood that the constituent element can be directly connected to or attached to the other constituent element, or that the other constituent element is "connected," "bonded," or "in contact" with the constituent elements.

[0034] Elements included in one embodiment and elements having the same function may be described using the same names in another embodiment. Unless otherwise stated, the description of one embodiment may be applied to other embodiments, and detailed descriptions will be omitted where there is repetition.

[0035] In the following embodiments, "humectant" can refer to a substance capable of promoting the formation of visible smoke and / or aerosol. Humectants may include, but are not limited to, glycerin (GLY), propylene glycol (PG), ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. In the art, humectant may be used interchangeably with terms such as aerosol forming agent and wetting agent.

[0036] In the following embodiments, the term "aerosol forming matrix" may refer to a material capable of forming aerosols. Aerosols may include volatile compounds. The aerosol forming matrix may be solid or liquid. For example, a solid aerosol forming matrix may include solid materials based on tobacco raw materials, such as reconstituted tobacco, cut tobacco, and recycled tobacco, while a liquid aerosol forming matrix may include liquid compositions based on nicotine, tobacco extracts, and / or various flavorings. However, the scope of this disclosure is not limited to the examples described above.

[0037] In the following embodiments, the term "aerosol-generating article" is an article for containing a medium through which aerosols are transferred. A representative example of an aerosol-generating article may be a cigarette. However, the scope of this disclosure is not limited thereto.

[0038] In the following embodiments, the term "aerosol generating device" may refer to a device that uses an aerosol forming matrix to generate aerosols, which can be inhaled directly into the lungs of a user through the user's mouth.

[0039] In the following embodiments, the term "upstream" or "upstream direction" may refer to a direction away from the user's (smoker's) mouth, and the term "downstream" or "downstream direction" may refer to a direction closer to the user's mouth. The terms "upstream" and "downstream" can be used to describe the relative positions of components of an aerosol-generating article.

[0040] In the following embodiments, the term "puff" may refer to inhalation, which means the aerosol is inhaled into the user's mouth, nasal cavity, or lungs through the user's mouth or nose.

[0041] Figure 1 A block diagram of an aerosol-generating article according to an embodiment; Figure 2 A schematic diagram illustrating the structure of the aerosol generating device; Figure 3 To illustrate the structure of an aerosol-generating article according to one embodiment, Figure 4 The accompanying drawings are provided for illustrative purposes, showing an aerosol generating system according to one embodiment, wherein an aerosol generating article is attached to an aerosol generating device.

[0042] Reference Figure 1 and Figure 2 According to one embodiment, the aerosol generating device 11 includes a battery 111, a control unit 112, a heater 113, and an elongated cavity 114.

[0043] Figure 1 and Figure 2 The aerosol generating apparatus 11 shown only includes components relevant to this embodiment. Therefore, those skilled in the art will understand that, in addition to... Figure 1 and Figure 2 In addition to the components shown, the aerosol generating device 11 may further include other general components.

[0044] Figure 2 The battery 111, control unit 112, and heater 113 are shown arranged in a row. However, the internal structure of the aerosol generating device 11 is not limited to... Figure 2 As shown. In other words, the arrangement of the battery 111, control unit 112 and heater 113 can be changed according to the design of the aerosol generating device 11.

[0045] When the aerosol generating article 12 is inserted into the aerosol generating device 11, the aerosol generating device 11 can operate the heater 113 to generate aerosols. The aerosols generated by the heater 113 can be delivered to the user via the aerosol generating article 12.

[0046] Even if the aerosol generating article 12 is not inserted into the aerosol generating device 11, the aerosol generating device 11 can still heat the heater 113 as needed.

[0047] Battery 111 provides power for the operation of aerosol generating device 11. For example, battery 111 can provide power for heating heater 113 and power required for the operation of control unit 112. In addition, battery 111 can also provide power required for the operation of displays, sensors, motors, etc. installed in aerosol generating device 11.

[0048] The control unit 112 can control the operation of the aerosol generating device 11 as a whole. Specifically, in addition to the battery 111 and the heater 113, the control unit 112 can also control the operation of other components in the aerosol generating device 11. Furthermore, the control unit 112 can check the status of each component of the aerosol generating device 11 to determine whether the aerosol generating device 11 is in an operational state.

[0049] The control unit 112 includes at least one processor. The processor can be an array of multiple logic gates, or a combination of a general-purpose microprocessor and a memory storing a microprocessor-executable program. Furthermore, those skilled in the art will understand that the processor can be implemented using other types of hardware.

[0050] The heater 113 can be heated by electricity supplied by the battery 111. For example, when the aerosol generating article 12 is inserted into the aerosol generating device 11, the heater 113 can be provided outside the aerosol generating article 12. Therefore, the heated heater 113 can increase the temperature of the aerosol generating material in the aerosol generating article 12.

[0051] Heater 113 can be a resistance heater. For example, heater 113 may include a conductive track, and heater 113 can be heated as current flows through the conductive track. However, heater 113 is not limited to the above examples, and any example capable of heating to the desired temperature is applicable without limitation. Here, the desired temperature can be preset in the aerosol generating device 11 or set by the user.

[0052] Meanwhile, as another example, heater 113 may be an induction heater 113. Specifically, heater 113 may include a conductive coil for induction heating of aerosol generating article 12, which may include a heat-sensitive element that can be heated by induction heater 113.

[0053] For example, heater 113 may include tubular heating elements, plate heating elements, needle heating elements, or rod heating elements, and may heat the interior or exterior of aerosol generating article 12 depending on the shape of the heating elements.

[0054] Furthermore, the aerosol generating apparatus 11 may include multiple heaters 113. In this case, the multiple heaters 113 may be arranged either inside the aerosol generating article 12 or outside the aerosol generating article 12. Alternatively, some of the multiple heaters 113 may be inserted inside the aerosol generating article 12, while the rest may be located outside the aerosol generating article 12. However, the shape of the heaters 113 is not limited to this. Figure 2 As shown, it can be set to various shapes.

[0055] In one embodiment, the aerosol generating article 12 may be contained within an elongated cavity 114. In another embodiment, a heater 113 may be configured to cover the outer surface of the elongated cavity 114, thereby heating the aerosol generating article contained within the elongated cavity 114. According to one embodiment, the heater 113 may be configured to cover at least a portion of the outer surface of the elongated cavity 114.

[0056] On the other hand, in addition to the battery 111, control unit 112, heater 113, and elongated cavity 114, the aerosol generating device 11 may further include general-purpose components. For example, the aerosol generating device 11 may further include a sensing unit 115, an output unit 116, a user input unit 117, a memory 118, and a communication unit 119.

[0057] The sensing unit 115 can sense the state of the aerosol generating device 11 or the state of the environment surrounding the aerosol generating device 11, and send the sensing information obtained through sensing 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 controlling the operation of the heater 113, restricting smoking, determining whether an aerosol generating item 12 (e.g., cigarette, cartridge, etc.) is inserted, and displaying notifications.

[0058] The sensing unit 115 may include at least one of a temperature sensor 1151, an insertion detection sensor 1152, and a suction sensor 1153, but is not limited thereto.

[0059] Temperature sensor 1151 can sense the temperature at which heater 113 (or aerosol generating article) is heated. Aerosol generating device 11 may include a separate temperature sensor for sensing the temperature of heater 113, or heater 113 itself may be used as a temperature sensor. Alternatively, temperature sensor 1151 may be positioned around battery 111 to monitor the temperature of battery 111.

[0060] Insertion detection sensor 1152 can sense whether the aerosol generating article 12 is inserted and / or removed. Insertion detection sensor 1152 may include at least one of, for example, a thin-film sensor, a pressure sensor, a light sensor, a resistance sensor, a capacitance sensor, an inductive sensor, and an infrared sensor, which can sense signal changes by the insertion and / or removal of the aerosol generating article 12.

[0061] The suction sensor 1153 can sense suction from the user based on various physical changes in the airflow path or airflow channel. For example, the suction sensor 1153 can sense suction from the user based on any of the following: temperature change, flow change, voltage change, and pressure change.

[0062] In addition to the sensors described above (temperature sensor 1151 to suction sensor 1153), the sensing unit 115 may also include at least one of a temperature / humidity sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a gyroscope sensor, a position sensor (e.g., Global Positioning System (GPS)), a proximity sensor, and a red, green, and blue (RGB) sensor (illuminance sensor). Those skilled in the art can intuitively infer the function of the sensors from their names; therefore, a more detailed description is omitted here.

[0063] The output unit 116 can output information about the status of the aerosol generating device 11 and provide it to the user. The output unit 116 may include, but is not limited to, at least one of the display unit 1161, the tactile unit 1162, or the sound output unit 1163. When the display unit 1161 and the touchpad are provided in a layered structure to form a touch screen, the display unit 1161 can also be used as an input device in addition to being an output device.

[0064] Display unit 1161 can visually provide the user with information about the aerosol generating device 11. This information may include, for example, the charging / discharging status of the battery 111, the preheating status of the heater 113, the insertion / removal status of the aerosol generating article 12, or the usage limitation status of the aerosol generating device 11 (e.g., detected abnormal items), and display unit 1161 can output this information externally. Display unit 1161 may be, for example, a liquid crystal display panel (LCD), an organic light-emitting diode (OLED), or the like. Alternatively, display unit 1161 may also be in the form of a light-emitting diode (LED) element.

[0065] The tactile unit 1162 can provide information about the aerosol generating device 11 to the user in a tactile manner by converting electrical signals into mechanical or electrical stimulation. The tactile unit 11162 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0066] The sound output unit 1163 can provide information about the aerosol generating device 11 to the user in an auditory manner. For example, the sound output unit 1163 can convert an electrical signal into a sound signal and output the sound signal to the outside.

[0067] The user input unit 117 can receive information input by the user and can also output information to the user. For example, the user input unit 117 may include a keypad, a dome switch, a touchpad (e.g., capacitive, pressure-sensitive film, infrared sensing, surface ultrasonic conduction, integral tension measurement, piezoelectric effect, etc.), a scroll wheel, a micro switch, etc., but is not limited to these. Furthermore, 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 can be connected to another external device via such a connection interface to send and receive information or charge the battery 111.

[0068] The memory 118 is hardware used to store various data processed in the aerosol generating device 11. It can store data processed by the control unit 112 and data to be processed by the control unit 112. The memory 118 may include at least one of the following: flash memory, hard disk memory, multimedia card micro memory, card-type memory (e.g., SD or XE memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic storage, magnetic disk, and optical disk. The memory 118 can store the operating time of the aerosol generating device 11, the maximum number of puffs, the current number of puffs, at least one temperature distribution, data associated with the user's smoking pattern, etc.

[0069] The communication unit 119 may include at least one component for communicating with another electronic device. For example, the communication unit 119 may include a short-range communication unit 1191 and a wireless communication unit 1192.

[0070] The short-range wireless communication unit 1191 may include, but is not limited to, Bluetooth communication units, Bluetooth Low Energy (BLE) communication units, Near Field Communication units, WLAN (Wi-Fi) communication units, ZigBee communication units, infrared Data Association (IrDA) communication units, Wi-Fi Direct (WFD) communication units, ultra-wideband (UWB) communication units, and Ant+ communication units.

[0071] Wireless communication unit 1192 may include, but is not limited to, cellular network communication unit, Internet communication unit, computer network (e.g., local area network (LAN) or wide area network (WAN)) communication unit, etc. Wireless communication unit 1182 may use subscriber information (e.g., International Mobile Subscriber Identity (IMSI)) to identify and authenticate aerosol generating device 11 in the communication network.

[0072] Although Figure 1 and Figure 2 Not shown, but the aerosol generating device 11 and the separate support can form a system together. For example, the support can be used to charge the battery 111 of the aerosol generating device 11. Alternatively, when the support and the aerosol generating device 11 are combined, the heater 113 can be heated.

[0073] For example, outside air can flow in through at least one air passage formed in the aerosol generating device 11. For example, the user can adjust the opening, closing and / or size of the air passage formed in the aerosol generating device 11. Therefore, the user can adjust the amount of atomization, the sensation of inhalation, etc. As another example, outside air can enter the interior of the aerosol generating article 12 through at least one hole formed on the surface of the aerosol generating article 12.

[0074] See Figure 3 According to one embodiment, the aerosol generating article 12 may include an atomizing section 121, a medium section 122, a cooling section 123, a filtering section 124, and a packaging material 125.

[0075] The atomizing section 121 may be located upstream of or in the upstream direction of the medium section 122, the medium section 122 may be located upstream of or in the upstream direction of the cooling section 123, and the cooling section 123 may be located upstream of or in the upstream direction of the filter section 124.

[0076] The atomizing section 121 may include nicotine-free aerosol-generating materials. For example, the humectant filled in the atomizing section 121 may include, but is not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. Furthermore, the atomizing section 121 may also include other additives, such as flavoring agents, humectants, and / or organic acids. Additionally, the atomizing section 121 may include flavoring liquids such as menthol or humectants. Even without a separate vaporizer in the aerosol generating device, the atomizing section can still generate aerosols.

[0077] The atomizing section 121 may include a rolled-up sheet, and a humectant may be included in the atomizing section 121 in a state of adsorption into the rolled-up sheet. In addition, other additives such as flavoring agents, humectants and / or organic acids, as well as flavoring liquids, may be included in the atomizing section 121 in a state of adsorption into the rolled-up sheet.

[0078] The preferred length of the atomizing section 121 can be from 4 mm to 12 mm, but is not limited to this.

[0079] The medium segment 122 may include nicotine. Additionally, the medium segment 122 may include aerosol-generating materials, such as glycerin. Furthermore, the medium segment 122 may include other additives, such as flavoring agents, humectants, and / or organic acids. Additionally, the medium segment 122 may include flavoring liquids, such as menthol or humectants, which can be added by spraying onto the medium segment 122.

[0080] The media segment 122 can be manufactured in various ways. For example, the media substrate filled in the media segment 122 may include at least one component selected from reconstituted tobacco, particulate tobacco, recycled tobacco, and shredded tobacco.

[0081] The preferred length of the dielectric segment 122 can be from 6 mm to 18 mm, but is not limited to this.

[0082] The cooling section 123 can produce a cooling effect on the aerosol. This allows the user to inhale the aerosol cooled to a suitable temperature.

[0083] For example, the cooling section 123 can be made of cellulose acetate and can be a tubular structure with a hollow interior. For example, the cooling section 123 can be manufactured by adding a plasticizer (e.g., cellulose triacetate) to a cellulose acetate tow.

[0084] For example, the cooling section 123 can be made of paper and can be a tubular structure with a hollow interior.

[0085] The ideal diameter of the hollow section included in the cooling section 123 is in the range of 4 mm to 8 mm, but is not limited thereto. The ideal length of the cooling section 123 is in the range of 4 mm to 30 mm, but is not limited thereto.

[0086] The cooling section 123 is not limited to the example above; it can be used without restriction as long as it has the function of cooling aerosols.

[0087] Filter section 124 can be manufactured by adding a plasticizer (e.g., triacetin) to the cellulose acetate tow. The ideal length of filter section 124 can be from 4 mm to 30 mm, but is not limited to this.

[0088] The filter section 124 can be used to produce fragrance. For example, flavoring liquid can be sprayed onto the filter section 124, or individual fibers coated with flavoring liquid can be inserted into the filter section 124.

[0089] Furthermore, the filter section 124 may also include at least one capsule. This capsule can function to generate fragrance or to generate aerosols. For example, the capsule may have a structure in which a liquid containing fragrance is encapsulated by a thin film. The capsule may be spherical or cylindrical, but is not limited to these shapes.

[0090] The aerosol-generating article 12 may be packaged in at least one package 125. The package 125 may have at least one hole through which external air can enter and internal gas can exit.

[0091] For example, the atomizing section 121 can be packaged in a first packaging material 1251, the medium section 122 can be packaged in a second packaging material 1252, the cooling section 123 can be packaged in a third packaging material 1253, and the filtering section 124 can be packaged in a fourth packaging material 1254. In addition, the entire aerosol generating article 12 can be packaged again in a fifth packaging material 1255.

[0092] In one embodiment, the first package 1251 may include an aluminum component. The first package 1251 may be a combination of ordinary filter paper rolls and metal foil (e.g., aluminum foil). For example, the total thickness of the first package 1251 may be between 40 μm and 80 μm. Furthermore, the thickness of the metal foil in the first package 1251 may be between 6 μm and 20 μm.

[0093] The second package 1252 and the third package 1253 may be made of perforated roll paper.

[0094] For example, the porosity of the second packaging material 1252 can be approximately 35,000 Cu, but is not limited to this. Additionally, the thickness of the second packaging material 1252 can be between 70 μm and 80 μm. Furthermore, the basis weight of the second packaging material 1252 can be in the range of 20 g / m² to 25 g / m².

[0095] For example, the porosity of the third packaging material 1253 can be approximately 35,000 Cu, but is not limited to this. Furthermore, the thickness of the third packaging material 1253 can be between 70 μm and 80 μm. Additionally, the basis weight of the third packaging material 1253 can be in the range of 20 g / m² to 25 g / m².

[0096] In one embodiment, the second package 1252 may include an aluminum component. For example, the second package 1252 may be a combination of ordinary filter paper rolls and metal foil (e.g., aluminum foil).

[0097] In addition, the second packaging 1252 can also be manufactured as the final outer shell.

[0098] The fourth packaging material 1254 can be formed using polylactic acid (PLA) laminated paper. Here, PLA laminated paper can refer to a three-layer paper comprising a paper layer, a PLA layer, and a paper layer. For example, the thickness of the fourth packaging material 1254 can be between 100 μm and 120 μm. Furthermore, the basis weight of the fourth packaging material 1254 can be in the range of 80 g / m² to 100 g / m².

[0099] The fifth packaging element 1255 can be manufactured as the final outer shell. For example, the basis weight of the fifth packaging element 1255 can be between 57 g / m2 and 63 g / m2. In addition, the thickness of the fifth packaging element 1255 can be between 64 μm and 70 μm.

[0100] Reference Figure 3 and Figure 4 According to one embodiment, the medium segment 122 may be pH treated and indirectly heated by the heater 113.

[0101] In one embodiment, the media segment 122 may include a pH-treated media substrate. For example, the media substrate may be pH-treated with a pH adjuster to be alkaline, and the pH adjuster may be alkaline, for example, including at least one of potassium carbonate (K₂CO₃), sodium bicarbonate (NaHCO₃), and calcium oxide (CaO). However, the materials included in the pH adjuster are not limited to the examples above; materials that produce less unpleasant odors during smoking may also be used. The alkaline pH adjuster can increase the pH value of the media substrate in the media segment 122. Compared to a media substrate without alkaline pH adjustment, a media substrate treated with an alkaline pH adjuster increases nicotine release upon heating. That is, a media substrate treated with an alkaline pH adjuster can achieve sufficient nicotine production even when the media segment 122 is heated at low temperatures.

[0102] In one embodiment, the medium segment 122 may include reconstituted tobacco with a pH adjusted to 7.0 to 9.5, or may be filled with tobacco particles with a pH adjusted to 7.0 to 9.5. The medium substrate, such as reconstituted tobacco or tobacco particles, may include nicotine, and when the medium substrate is pH-treated, free nicotine is readily transferred from the medium substrate even under non-heating conditions or relatively low temperature conditions. That is, by adjusting the pH of the medium substrate in the medium segment 122 to the range of 7.0 to 9.5, a small amount of volatile free nicotine can be transferred even under non-heating conditions, thereby achieving a low-level to medium-intensity tobacco flavor. Furthermore, by increasing the amount of nicotine transferred by promoting nicotine transfer during low-temperature heating, a medium-to-high-intensity tobacco flavor can be achieved. Therefore, according to one embodiment, the amount of nicotine transferred can be easily adjusted even by non-heating or low-temperature heating.

[0103] According to one embodiment, the first package 1251 of the aerosol generating article 12 may include a thermally conductive material (e.g., aluminum component), and the second package 1252 may also include a thermally conductive material (e.g., aluminum component). The aerosol generating article 12 according to one embodiment can be housed in an elongated cavity 114 of an aerosol generating device 11. With the aerosol generating article 12 housed in the elongated cavity 114, a heater 113 can enclose the atomizing section 121. For example, the downstream portion of the heater 113 may be adjacent to the downstream portion of the atomizing section 121, or it may be disposed between the upstream and downstream portions of the atomizing section 121. As the heater 113 is heated, the temperature of the atomizing section 121 may increase. The atomizing section 121 is enclosed by the heater 113, thus receiving heat directly through the first package 1251, while the medium section 122 can indirectly receive heat transferred via the first package 1251 and along the second package 1252. Even if the second package 1252 is not wrapped by the heater 113, it can indirectly receive heat from the heater 113, thus enabling low-temperature heating of the medium section 122.

[0104] Alternatively, the first package 1251 of the aerosol generating article 12 according to one embodiment may include a thermally conductive material (e.g., an aluminum component), while the second package 1252 may not include a thermally conductive material. In this case, when the atomizing section 121 is heated, the heat transferred from the heater 113 to the atomizing section 121 via the first package 1251 may be indirectly transferred to the medium section 122, or the heat included in the aerosol of the atomizing section 121 may be indirectly transferred to the medium section 122.

[0105] When heat is not transferred to the medium section 122, a relatively high pH value treatment is required. However, according to an embodiment of the aerosol generation system 1, the medium section 122 can be heated at a low temperature. Therefore, even if the pH value of the medium section 122 is treated to a relatively low pH value in the range of 7.0 to 9.5, efficient and uniform nicotine transfer can still be achieved. When the pH value of the medium section 122 is between 7.0 and 9.5 (not relatively high), the instability caused by the volatilization of free nicotine may be reduced, resulting in increased uniformity of smoke flavor intensity and reduced off-odors and malodors.

[0106] In one embodiment, filter section 124 may adsorb nicotine. Nicotine adsorbed in filter section 124 can be transferred out of medium section 122. For example, since the pH of medium section 122 is between 7.0 and 9.5, nicotine in medium section 122 will actively transfer even at room temperature. Therefore, nicotine transferred from medium section 122 can be adsorbed into filter section 124. That is, nicotine in medium section 122 can be transferred and adsorbed into filter section 124. When a user inhales, the aerosol generated in atomizing section 121 passes through filter section 124, and the nicotine adsorbed in filter section 124 is also inhaled by the user. As described above, since both nicotine in filter section 124 and nicotine in medium section 122 can be transferred, sufficient nicotine transfer can be ensured even under non-heating or indirect heating conditions.

[0107] In one embodiment, the nicotine transfer described above can be carried out at room temperature over a predetermined time. Table 1 below shows the amount of nicotine transferred over time in the first medium section (e.g., medium section 122), the second medium section, and the filter section 124, with the experiment conducted at a temperature of 22°C. The experiment conducted according to Table 1 was performed with the second medium section applied instead of the cooling section 123; similar experimental results could be obtained even if the cooling section 123 was applied instead of the second medium section. Referring to Table 1, it can be seen that nicotine was transferred to the filter section 124 after 4 weeks. Furthermore, according to the smoke composition analysis values, the atomization amount remained at a constant level, while the amount of nicotine increased.

[0108] Furthermore, it can be observed that the amount of nicotine transferred tends to stabilize, and even after 4 weeks, the amount of nicotine transferred to filter section 124 does not change significantly. Additionally, the vapor composition analysis shows that both the amount of vaporized vapor and the amount of nicotine also tend to stabilize.

[0109] Therefore, it can be understood that transferring nicotine to filter section 124 over 4 weeks is ideal. Furthermore, it can be seen that the amount of nicotine transferred, the amount of vaporized components, and the total nicotine content remain stable even after 4 weeks. Therefore, it is best to set the nicotine transfer treatment time to 4 weeks.

[0110] Table 1

[0111]

[0112] The above description of the embodiments is merely illustrative, and those skilled in the art will understand that various modifications and other equivalent embodiments can be derived from them. Therefore, the scope of this disclosure should be defined by the appended claims, and all differences within the scope equivalent to that described in the claims will be interpreted as being included within the protection defined by the claims.

[0113] Without causing obvious technical conflicts, the features and aspects of any of the above embodiments can be combined with the features and aspects of any other embodiments.

Claims

1. An aerosol-generating article, characterized in that, include: Atomization section, The medium section, which is pH-treated and located downstream of the atomizing section, and A filter section is located downstream of the medium section and adsorbs nicotine. When the atomizing section is heated, the heat from the heated atomizing section is indirectly transferred to the medium section. The nicotine adsorbed onto the filter section is the nicotine transferred from the medium section. In order to facilitate the transfer of nicotine, the aerosol-generating article undergoes a nicotine transfer treatment time.

2. The aerosol-generating article according to claim 1, characterized in that, The medium substrate filled in the medium segment is subjected to pH treatment so that its pH range is 7.0 to 9.

5.

3. The aerosol-generating article according to claim 1, characterized in that, Also includes: Thermally conductive packaging material used to enclose the atomizing segment.

4. The aerosol-generating article according to claim 3, characterized in that, The thermally conductive packaging extends to further enclose the medium segment.

5. The aerosol-generating article according to claim 1, characterized in that, The media substrate filling the media segment includes at least one component of reconstituted tobacco and tobacco particles.

6. The aerosol-generating article according to claim 1, characterized in that, The humectant filling the atomizing section includes at least one of glycerin and propylene glycol.

7. An aerosol generation system, characterized in that, Includes aerosol-generating articles and aerosol-generating devices: The aerosol-generating articles include: Atomization section, The medium section is located downstream of the atomizing section, and A filter section is located downstream of the medium section; The aerosol generating device includes: The control unit includes at least one processor. A heater for heating the aerosol-generating article, and A long, narrow cavity for containing the aerosol-generating article; The filtration section contains nicotine. The dielectric substrate filled in the dielectric segment is pH treated. The nicotine adsorbed onto the filter section is the nicotine transferred from the medium section. In order to facilitate the transfer of nicotine, the aerosol-generating article undergoes a nicotine transfer treatment time.

8. The aerosol generation system according to claim 7, characterized in that, When the heater heats the atomizing section, the heat from the heated atomizing section is indirectly transferred to the medium section.

9. The aerosol generation system according to claim 8, characterized in that, The aerosol generating article also includes a thermally conductive packaging material that encloses at least one of the atomizing section and the medium section, and includes an aluminum component.

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