JP2022537509A - Aerosol-generating article containing tobacco sheet, and aerosol-generating system using the same - Google Patents

Abstract

The present invention provides a first portion containing an aerosol-generating material, a second portion containing tobacco material in the form of tobacco sheets, a third portion for cooling airflow passing through the first and second portions, and a filter material. The first portion, the second portion, the third portion and the fourth portion relate to the aerosol-generating article sequentially aligned with respect to the longitudinal direction of the aerosol-generating article.

Description

TECHNICAL FIELD The present invention relates to an aerosol-generating article containing tobacco sheets and an aerosol-generating system using the same.

Recently, there has been an increasing demand for alternatives to common aerosol-generating articles. For example, there is an increasing demand for aerosol generators that generate an aerosol by heating an aerosol-generating substance within an aerosol-generating article rather than an aerosol generator that burns the aerosol-generating article to generate an aerosol. Accordingly, researches related to heated aerosol-generating articles and heated aerosol-generating devices are being actively pursued.

Although reconstituted tobacco, including tobacco leaves, tobacco fines, veins, stems, etc., may be used in heated aerosol-generating articles, conventionally used reconstituted tobacco in the form of strands or cut tobacco undergoes a chopping process. Therefore, the fiber bonds inside the reconstituted tobacco are broken. As a result, heat is discontinuously transferred between the cut tobacco pieces, causing problems such as heat loss.

Aerosol-generating articles according to embodiments can overcome the problems of the prior art described above.

However, the technical problems are not limited to those described above, and other technical problems can be inferred from the following examples.

A first aspect of the present invention is an aerosol-generating article comprising: a first portion comprising an aerosol-generating material; a second portion comprising tobacco material in the form of a tobacco sheet; and an airflow passing through said first portion and said second portion. and a fourth portion comprising a filter material, wherein said first portion, said second portion, said third portion, and said fourth portion are relative to the longitudinal direction of said aerosol-generating article aerosol-generating articles can be provided that are sequentially aligned in

In embodiments, the tobacco sheet is rectangular and the length to width ratio of the tobacco sheet is also between 10:1 and 30:1.

In embodiments, the tobacco sheet may have a wrinkled configuration or a configuration that is folded one or more times.

In an embodiment, the tobacco sheet also has a length in one direction of 180 mm or more.

In embodiments, the second portion may include a plurality of the tobacco sheets.

In an embodiment, the tobacco sheet contains 75 to 85 parts by weight of tobacco leaves, 5 to 20 parts by weight of a moisturizing agent, 3 to 10 parts by weight of pulp, and 3 to 10 parts by weight of a thickening agent based on 100 parts by weight of the whole. may contain.

In embodiments, the aerosol-generating article can have a draw resistance of 20-60 mm H ₂ O.

In embodiments, a cross-section taken perpendicular to the longitudinal direction may have at least one closed curve formed by said tobacco sheet.

A second aspect of the present invention is an aerosol generating device comprising: an aerosol generating article according to the first aspect; and an aerosol generating device for heating at least one of said first portion and said second portion of said aerosol generating article. system can be provided.

In embodiments, the second portion may include a folded tobacco sheet, and the aerosol generator may heat at least a portion of the first portion and at least a portion of the second portion to generate an aerosol. .

Solutions to the problems are not limited to the above, but include any matter that can be inferred by a person of ordinary skill in the entire specification.

An aerosol-generating article according to embodiments may include a second portion comprising a continuous length of tobacco sheet such that heat transfer may be effected within the tobacco sheet. This allows the user to have an excellent smoking experience with the aerosol-generating article according to the present disclosure.

Further, in the aerosol-generating article according to the embodiment, the second portion contains a roll sheet-like tobacco material instead of cut tobacco pieces, thereby stably securing an airflow passage, thereby providing an aerosol-generating article. can have a relatively low resistance to attraction.

The effects of the present invention are not limited to those described above, and include any effects that can be inferred from the configuration described later.

FIG. 4 is a drawing showing an aerosol-generating article inserted into an aerosol-generating device according to an embodiment; FIG. 4 is a drawing showing an aerosol-generating article inserted into an aerosol-generating device according to another embodiment; FIG. 10 is a drawing showing an aerosol-generating article inserted into an aerosol-generating device according to another embodiment; BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram illustrating the configuration of an aerosol-generating article according to one embodiment; 1 is a drawing showing the configuration of a first portion and a second portion of an aerosol-generating article according to one embodiment; FIG. FIG. 2 is a cross-sectional view of a second portion of an aerosol-generating article according to one embodiment; FIG. FIG. 4 is a diagram illustrating how heat is transferred when the second portion of the aerosol-generating article includes cut tobacco, according to one embodiment. FIG. 4 is a drawing showing how heat is transferred when the second portion of the aerosol-generating article comprises a single continuous tobacco sheet, according to one embodiment. 1 is a diagram illustrating airflow in an aerosol-generating article containing cut tobacco, according to one embodiment. 1 is a drawing showing airflow in an aerosol-generating article comprising a single continuous tobacco sheet, according to one embodiment.

The terms used in the examples were selected as general terms that are currently widely used as much as possible to function in the present disclosure. It also depends on the advent of technology. Also, in certain cases, some terms are arbitrarily chosen by the applicant, and their meanings are set forth in detail in the description portion of the invention. Therefore, the terms used in this disclosure should be defined based on the meanings of the terms and the overall content of the disclosure, rather than just the term's name.

Throughout the specification, when a part "includes" or "includes" a component, it does not exclude other components, unless specifically stated to the contrary. It means that it may contain more. In addition, terms such as "... unit" and "... module" described in the specification mean a unit that processes at least one function or operation, and it is embodied by hardware or software, or is a combination of hardware and software. It can be realized by combining with

Hereinafter, embodiments of the present disclosure will be described in detail based on the accompanying drawings so that those skilled in the art can easily implement the present disclosure. This disclosure may, however, be embodied in many different forms and is not limited to the illustrative embodiments set forth herein.

Throughout the specification, "A and/or B" means at least one of A and B.

As used here, an expression such as "at least one of" preceding a list of elements qualifies the entire list of elements, and qualifies individual elements of that list. not a thing For example, expressions such as "at least one of a, b, and c" can be defined as A alone, b alone, c alone, a and b, a and c, b and c, or A, b, and should be understood to include c.

When an element or layer is referred to as being "on", "above", "coupled" or "coupled with", that element or layer is directly (or immediately) above another element or layer. It is also understood that there are intervening elements or layers that may be connected, bonded, or intervening on top. Conversely, when an element is referred to as being "directly on," "directly on top of," "directly coupled to," or "directly coupled to," another element or layer, it means that the other element or layer Means no intervention. Like numbers refer to like elements throughout the specification.

Throughout the specification, "on" means that a member is disposed over another member, whether the member is disposed in contact with or without contact with the other member. Also includes

Throughout the specification, "longitudinal direction of the aerosol-generating article" means the direction in which the aerosol generated within the aerosol-generating article travels or the direction in which the aerosol-generating article is inserted into the device.

Embodiments of the present disclosure are described in detail below with reference to the drawings.

1 to 3 are diagrams showing an example in which an aerosol generating article 20000 according to an embodiment is inserted into an aerosol generating device 10000 according to an embodiment.

Referring to FIG. 1, the aerosol generator 10000 includes a battery 11000, a controller 12000, and a heater 13000. FIG. Referring to FIGS. 2 and 3, the aerosol generator 10000 further includes a vaporizer 14000. As shown in FIG. Also, an aerosol-generating article 20000 can be inserted into the internal space of the aerosol-generating device 10000 .

The aerosol generator 10000 illustrated in FIGS. 1 to 3 illustrates some components related to the embodiment. Therefore, those of ordinary skill in the art will understand that the aerosol generator 10000 may further include other components in addition to the components illustrated in FIGS. can.

1-3 also illustrate that the aerosol generator 10000 includes a heater 13000. FIG. However, the heater 13000 may be omitted depending on the embodiment.

FIG. 1 shows that a battery 11000, a controller 12000 and a heater 13000 are arranged in a row. FIG. 2 also shows that the battery 11000, the controller 12000, the vaporizer 14000 and the heater 13000 are arranged in a row. Also shown in FIG. 3 is a vaporizer 14000 and a heater 13000 arranged in parallel. However, the internal structure of the aerosol generator 10000 is not limited to that shown in FIGS. That is, the arrangement of the battery 11000, the controller 12000, the heater 13000 and the vaporizer 14000 can be changed according to the design of the aerosol generator 10000. FIG.

When the aerosol-generating article 20000 is inserted into the aerosol-generating device 10000, the aerosol-generating device 10000 operates the heater 13000 and/or the vaporizer 14000 to generate aerosol from the aerosol-generating article 20000 and/or the vaporizer 14000. sell. Aerosol generated by heater 13000 and/or vaporizer 14000 passes through aerosol-generating article 20000 and is transmitted to the user.

If necessary, the aerosol generating device 10000 can heat the heater 13000 even when the aerosol generating article 20000 is not inserted into the aerosol generating device 10000 .

A battery 11000 supplies power used to operate the aerosol generator 10000 . For example, the battery 11000 can supply power to heat the heater 13000 or the vaporizer 14000 and supply power necessary for the operation of the controller 12000 . In addition, the battery 11000 can supply power necessary for operating the display, sensor, motor, etc. provided in the aerosol generator 10000 .

The control unit 12000 generally controls the operation of the aerosol generator 10000 . Specifically, the controller 12000 controls the operations of the battery 11000, the heater 13000, and the vaporizer 14000 as well as other components included in the aerosol generator 10000. FIG. The control unit 12000 can also check the state of each configuration of the aerosol generator 10000 and determine whether the aerosol generator 10000 is in an operable state.

Control unit 12000 includes at least one processor. A processor may be embodied as an array of logic gates, or may be embodied as a combination of a general-purpose microprocessor and a memory in which programs executable by the microprocessor are stored. Also, those who have ordinary knowledge in the technical field to which the embodiments belong can understand that they can be embodied by other forms of hardware.

The heater 13000 can be heated by power supplied from the battery 11000 . For example, if the aerosol-generating article is inserted into the aerosol-generating device 10000, the heater 13000 can be located external to the aerosol-generating article. Thus, the heated heater 13000 can increase the temperature of the aerosol-generating substance within the aerosol-generating article.

Heater 13000 is also an electrical resistive heater. For example, the heater 13000 may include a conductive track, and the heater 13000 may be heated by passing a current through the conductive track. However, the heater 13000 is not limited to the above example, and can be applied without limitation as long as it can heat up to a desired temperature. Here, the desired temperature may be preset in the aerosol generator 10000, or may be set to the desired temperature by the user.

On the other hand, as another example, the heater 13000 is also an induction heater. Specifically, the heater 13000 includes a conductive coil for inductively heating the aerosol-generating article, which may include a susceptor that can be heated by the induction heater.

For example, the heater 13000 may include tubular heating elements, plate heating elements, needle heating elements, or bar heating elements, and may heat the interior or exterior of the aerosol generating article 20000 depending on the shape of the heating element.

Also, a plurality of heaters 13000 may be arranged in the aerosol generator 10000 . At this time, the plurality of heaters 13000 may be arranged to be inserted into the aerosol generating article 20000 or may be arranged outside the aerosol generating article 20000 . Also, some of the plurality of heaters 13000 may be arranged to be inserted into the aerosol-generating article 20000 and the rest may be arranged outside the aerosol-generating article 20000 . Also, the shape of the heater 13000 is not limited to the shapes shown in FIGS. 1 to 3, and may be manufactured in various shapes.

The vaporizer 14000 heats the liquid composition to produce an aerosol, which can be passed through the aerosol-generating article 20000 and delivered to the user. That is, the aerosol produced by the vaporizer 14000 travels along the airflow path of the aerosol-generating device 10000, which allows the aerosol produced by the vaporizer 14000 to travel through the aerosol-generating article to the user. can be configured to be

For example, vaporizer 14000 may include, but is not limited to, a liquid storage portion, a liquid delivery means, and a heating element. For example, the liquid reservoir, liquid delivery means and heating element can be included in the aerosol generating device 10000 as separate modules.

The liquid storage section can store a liquid composition. For example, a liquid composition can be a liquid containing tobacco-containing substances, including volatile tobacco flavor components, or a liquid containing non-tobacco substances. The liquid reservoir is made to detach/attach to/from the vaporizer 14000 and can be made integral with the vaporizer 14000 .

For example, liquid compositions may include water, solvents, ethanol, botanical extracts, fragrances, flavors, or vitamin mixtures. Flavors include, but are not limited to, menthol, peppermint, spearmint oil, various fruit flavoring ingredients, and the like. Flavoring agents may include ingredients that provide a variety of flavors or flavors to the user. A vitamin mixture is also a mixture of at least one of vitamin A, vitamin B, vitamin C and vitamin E, but is not limited thereto. Liquid compositions may also contain aerosol forming agents such as glycerin and propylene glycol.

A liquid transfer means can transfer the liquid composition of the liquid reservoir to the heating element. For example, the liquid transfer means can be a wick such as, but not limited to, cotton fibres, ceramic fibres, glass fibres, porous ceramics.

A heating element is an element for heating the liquid composition conveyed by the liquid conveying means. For example, the heating element can be a metal hot wire, a metal hot plate, a ceramic heater, etc., but is not limited to them. The heating element may also be arranged by a structure consisting of a conductive filament, such as Nichrome wire, wound around the liquid transfer means. The heating element can be heated by an electrical current supply to transfer heat to the liquid composition in contact with the heating element to heat the liquid composition. As a result, an aerosol can be generated.

For example, vaporizer 14000 is also referred to as, but is not limited to, a cartomizer or atomizer.

Meanwhile, the aerosol generator 10000 may further include a general-purpose configuration in addition to the battery 11000, controller 12000, heater 13000, and vaporizer 14000. FIG. For example, the aerosol generating device 10000 may include a display capable of outputting visual information and/or a motor for outputting tactile information. The aerosol generating device 10000 may also include at least one sensor (a puff sensor, a temperature sensor, an aerosol-generating article insertion sensor, etc.). In addition, the aerosol generating device 10000 is also manufactured with a structure that allows external air to flow in or internal gas to flow out even when the aerosol generating article 20000 is inserted.

Although not shown in FIGS. 1 to 3, the aerosol generator 10000 can constitute a system together with a separate cradle. For example, the cradle can be used to charge the battery 11000 of the aerosol generator 10000. FIG. Alternatively, the heater 13000 can be heated while the cradle and the aerosol generator 10000 are combined.

As an example, outside air can be introduced through at least one air passageway formed in the aerosol generator 10000 . For example, the opening and closing of the air passage formed in the aerosol generator 10000 and/or the size of the air passage can be adjusted by the user. This allows the amount of atomization and the smoke (eg, aerosol) quality to be adjusted by the user. As another example, external air can enter the interior of the aerosol-generating article 20000 through at least one hole formed in the surface of the aerosol-generating article 20000 .

FIG. 4 is a schematic diagram illustrating the configuration of an aerosol-generating article 20000 according to one embodiment.

According to an embodiment, the aerosol-generating article 20000 may include a first portion 21000, a second portion 22000, a third portion 23000 and a fourth portion 24000 sequentially aligned with respect to the longitudinal direction of the aerosol-generating article 20000. . As an example, the first portion 21000 may contain the aerosol-generating substance and the second portion 22000 may contain the tobacco substance. The third portion 23000 cools the airflow passing through the first portion 21000 and the second portion 22000, and the fourth portion 24000 may contain filtering material.

In some embodiments, the first portion 21000, the second portion 22000, the third portion 23000, and the fourth portion 24000 may be sequentially aligned with respect to the longitudinal direction of the aerosol generating article 20000. FIG. As a result, the aerosol generated in at least one of the first portion 21000 and the second portion 22000 sequentially passes through the first portion 21000, the second portion 22000, the third portion 23000, and the fourth portion 24000 to form an airflow. can be formed. This allows the user to inhale the aerosol from the fourth portion 24000 .

In an embodiment, the first portion 21000 has a length of approximately 8-12 mm and the second portion 22000 has a length of approximately 12-14 mm. However, embodiments are not limited thereto, and the lengths of the first portion 21000 and the second portion 22000 can be appropriately adjusted within a range that can be easily changed by ordinary engineers.

Specifically, the first portion 21000 may include an aerosol-generating substance. Here, the aerosol-generating substance may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol, but is limited thereto. is not.

The second portion 22000 may include tobacco material. In the case of typical combustible and heated cigarettes, for example, chopped shredded tobacco may be used as the tobacco material. However, in the present disclosure, the second portion 22000 may comprise a continuous length of tobacco sheet. Specific matters related to the second portion 22000 will be described with reference to FIGS. 5 and 6 below.

The third portion 23000 may cool airflow passing through the first portion 21000 and the second portion 22000 . The third part 23000 is made of polymer or biodegradable polymer and can have a cooling function. For example, the third portion 23000 can be made of polylactic acid (PLA) fibers, but is not so limited. The third portion 23000 is also made of a cellulose acetate filter with a plurality of holes formed therein. However, the third portion 23000 is not limited to the above examples, and any material that performs the function of cooling the aerosol can be applied without limitation. For example, the third part 23000 can also be a tube filter containing a hollow or a paper tube filter.

The fourth portion 24000 may contain a filter material. For example, the fourth portion 24000 is also a cellulose acetate filter. On the other hand, the shape of the fourth portion 24000 is not limited. For example, the fourth portion 24000 may be a cylindrical rod or a tubular rod containing a hollow inside. The fourth portion 24000 is also a recessed rod. If the fourth portion 24000 is composed of multiple segments, at least one of the multiple segments is also fabricated in a different shape.

The fourth portion 24000 can be made to generate flavor. For example, the fourth part 24000 may be sprayed with a perfume liquid, and a separate fiber coated with the perfume liquid may be inserted into the fourth part 24000 .

The aerosol-generating article 20000 may include a wrapper 25000 that wraps at least a portion of the first to fourth portions 21000 to 24000 . The aerosol-generating article 20000 may also include a wrapper 25000 that wraps around the first to fourth portions 21000 to 24000 . The wrapper 25000 is positioned at the outermost region of the aerosol-generating article 20000, and may have at least one hole through which external air is introduced or internal gas is discharged. Wrapper 25000 may be a single wrapper or a combination of multiple wrappers.

As an example, the first portion 21000 of the aerosol-generating article 20000 comprises a crimped, crumpled sheet comprising the aerosol-generating material, and the second portion 22000 comprises tobacco material and comprises a continuous length of the tobacco sheet. Including, the third portion 23000 may include the cooling portion and the fourth portion 24000 may include the filter material. However, embodiments are not necessarily so limited.

The first portion 21000 and the second portion 22000 of the aerosol-generating article 20000 are inserted inside the aerosol-generating device 10000, and the third portion 23000 and the fourth portion 24000 of the aerosol-generating article 20000 are exposed outside the aerosol-generating device 10000. can be Also, a part of the first part 21000 and the second part 22000 can be inserted into the aerosol generator 10000 . The user can inhale the aerosol with the fourth portion in the mouth. At this time, the aerosol is generated by external air passing through the first and second parts, and the generated aerosol can pass through the third and fourth parts and be delivered to the user's mouth.

The second portion 22000 of the aerosol-generating article 20000 will be specifically described below with reference to FIGS. 5 and 6. FIG.

FIG. 5 is a diagram illustrating the configuration of the first portion 21000 and the second portion 22000 of the aerosol-generating article 20000 according to one embodiment. The first portion 21000 may include an aerosol-generating substance.

Referring to FIG. 5, the second portion 22000 may comprise tobacco sheets. The tobacco sheet can have a square shape in the fully open state. For example, tobacco sheets can have a rectangular or square shape. However, the present invention is not necessarily limited thereto, and the shape of the tobacco sheet can be changed according to need.

In embodiments, the tobacco sheet also has a length to width ratio of about 10:1 to about 30:1. For example, the tobacco sheet has a length to width ratio of about 18:1, about 19:1, about 20:1, about 21:1, about 22:1, about 23:1, or even about 24:1. As a result, the suction resistance of the aerosol-generating article 20000 according to the embodiment can be relatively low, and the thermal conductivity of the aerosol-generating article 20000 can be improved. This allows the user to have an excellent smoking feeling with respect to the aerosol-generating article 20000 .

In embodiments, the tobacco sheet also has a length in one direction of about 180 mm or greater. For example, the tobacco sheet also has a length in one direction of about 190 mm to about 240 mm. Here, the length of the tobacco sheet in one direction is also the length in landscape, length, or diagonal. Desirably, the length in one direction of the tobacco sheet is also the length of the tobacco sheet. As an example, the size of the tobacco sheet is also 230mm x 12mm. As another example, the size of the tobacco sheet may be 190mm x 8mm, but embodiments are not necessarily limited thereto. The thermal conductivity of the aerosol-generating article 20000 can be improved if the length of the tobacco sheet in one direction is about 180 mm or more. This allows the user to have an excellent smoking feeling with respect to the aerosol-generating article 20000 .

In some embodiments, the second portion 22000 may include one or two tobacco sheets. For example, the second portion 22000 may comprise a single tobacco sheet of size 230mm x 12mm or 190mm x 8mm. As another example, the second portion 22000 may comprise two tobacco sheets formed by cutting a tobacco sheet of size 230mm x 12mm or 190mm x 8mm once. In an embodiment, when the second portion 22000 includes a single tobacco sheet having a size of 230 mm x 12 mm or 190 mm x 8 mm, the suction resistance of the aerosol-generating article 20000 is relatively high compared to when it includes chopped tobacco. lower, and the thermal conductivity of the aerosol-generating article 20000 can be improved. This allows the user to have an excellent smoking feeling with respect to the aerosol-generating article 20000 .

In an embodiment, the tobacco sheet contains 75 to 85 parts by weight of tobacco leaves, 5 to 20 parts by weight of humectant, 3 to 10 parts by weight of pulp, and 3 to 10 parts by weight of thickening agent based on 100 parts by weight of the whole. It's okay. Specifically, the tobacco sheet is also reconstituted tobacco containing the components in the weight ratios described above.

In embodiments, the tobacco sheet can have a crumpled configuration or a configuration that has been folded one or more times. Referring to FIG. 5, it can be seen that the second portion 22000 includes a tobacco sheet that is creased or folded one or more times. Since the length of the tobacco sheet in one direction is about 180 mm or more, it is also difficult for the tobacco sheet to be contained in the second portion 22000 in a fully open form. Accordingly, the tobacco sheet can be contained in the second portion 22000 in a wrinkled form or in a form folded one or more times. Hereinafter, the tobacco sheet 22000 will be described more specifically with reference to FIG.

FIG. 6 is a diagram illustrating a cross-section of the second portion 22000 of the aerosol-generating article 20000, according to one embodiment.

The outermost region of the second portion 22000 is also the wrapper 25000 . Inside the wrapper 25000, the tobacco sheet 100 may be contained in a wrinkled or folded form. Referring to FIG. 6, the tobacco sheet 100 can be contained in a folded configuration of 8 or more times. However, embodiments are not necessarily so limited. When the tobacco sheet 100 is so positioned within the second portion 22000, airflow through the second portion 22000 experiences relatively low resistance. This allows the aerosol-generating article 20000 to have a relatively low draw resistance.

In some embodiments, a cross-section taken perpendicular to the longitudinal direction of the second portion 22000 can have at least one closed curve formed by the tobacco sheet. Although not shown in FIG. 6, if the tobacco sheet 100 has a wrinkled configuration or a configuration that is folded one or more times, the contact of the two regions of the tobacco sheet 100 can form at least one closed curve. A continuous airflow is formed between the closed curves formed by the tobacco sheet 100, whereby the airflow passing through the second portion 22000 experiences relatively low resistance. Accordingly, the aerosol-generating article 20000 can have a relatively low resistance to draw.

In embodiments, the aerosol-generating article 20000 can have a draw resistance of about 20-60 mm _H2O . A suction resistance of about 20-60 mm H ₂ O is also recognized in the art as a relatively low value that allows users to smoothly inhale the aerosol. This allows the user to have an excellent smoking feeling with respect to the aerosol-generating article 20000 .

FIG. 7A is a diagram showing how heat is transferred in cut tobacco, according to one embodiment.

Figure 7B is a diagram showing how heat is transferred in a continuous tobacco sheet according to one embodiment.

Referring to FIG. 7A, when the aerosol-generating article includes tobacco material in the form of chopped shredded tobacco, it can be seen that the heat transferred from the wrapper is discontinuously transferred between the tobacco materials. . Alternatively, referring to FIG. 7B, when the second portion 22000 of the aerosol-generating article comprises tobacco material in the form of a tobacco sheet, the heat transferred from the wrapper 25000 is continuously transferred within the tobacco sheet 200. can be confirmed. Thereby, the tobacco sheet 200 is effectively heated, and the user can feel an excellent smoking feeling for the aerosol-generating article 20000 .

FIG. 8A is a diagram illustrating a shape through which an airflow is passed through an aerosol-generating article containing cut tobacco, according to one embodiment.

Figure 8B is a diagram illustrating airflow in an aerosol-generating article comprising a single continuous tobacco sheet, according to one embodiment.

Referring to FIG. 8A, if the aerosol-generating article includes tobacco material in the form of chopped tobacco pieces, confirm that the aerosol generated by heating forms a turbulent airflow between the chopped tobacco pieces. can be done.

Alternatively, referring to FIG. 8B, the second portion 22000 of the aerosol-generating article according to the embodiment may include a single tobacco sheet 300, and the aerosol forms a linear airflow in the portion other than the tobacco sheet 300. This allows the airflow to pass through the second portion 22000 with relatively low resistance as compared to FIG. 8A. Therefore, the aerosol-generating article 20000 has a relatively low resistance to suction, and the user can feel an excellent smoking sensation with respect to the aerosol-generating article 20000.

According to one embodiment, the aerosol-generating system includes an aerosol-generating device (not shown) that heats at least one of the aerosol-generating article 20000 and the first portion 21000 and second portion 22000 of the aerosol-generating article 20000 described above. ) may be included.

The features described above for the generating article 20000 are equally applicable to aerosol-generating articles included in an aerosol-generating system.

In an embodiment, the second portion 22000 includes a tobacco sheet having a shape that is folded one or more times, and the aerosol generator heats at least a portion of the first portion 21000 and at least a portion of the second portion 22000. can generate aerosols.

At least one of the configurations, components, modules, or units represented in blocks, such as control unit 12000 in FIGS. may be implemented as various pieces of hardware, software, and/or firmware structures that perform the respective functions described above. For example, at least one of these configurations employs direct circuit structures that perform their respective functions through control of one or more microprocessors or other controllers such as memories, processors, logic circuits, look-up tables. be able to. Also, at least one of these structures includes one or more executable instructions for performing a particular logic function and is executed by one or more microprocessors or other controllers, modules, programs, Or it can be specifically embodied by a portion of code. Also, at least one of these components may include or be embodied by a processor such as a central processing unit (CPU), microprocessor, or the like for performing respective functions. Two or more of those structures may be combined in one or more single structures to perform the full operation or function of the two or more structures combined. Also, at least part of the function of at least one of these configurations may be performed by another of those configurations. Also, although a bus is not shown in the block diagram, configuration communication may be accomplished through the bus. Functional aspects of the exemplary embodiments may be implemented in algorithms running on one or more processors. Also, structures represented as blocks or processing steps may utilize any relevant technology for electronic configuration, signal processing, and/or control, data processing, and the like.

The above description of the embodiments is merely exemplary, and various modifications and other equivalent embodiments can be made by those skilled in the art. can be understood. Therefore, the true scope of protection of the invention should be determined by the claims, and all differences that fall within the scope of equivalents of the contents of the claims shall be included in the scope of protection determined by the claims. must be interpreted.

Claims (10)

In an aerosol-generating article,
a first portion comprising an aerosol-generating substance;
a second portion comprising tobacco material in the form of tobacco sheets;
a third portion for cooling airflow passing through the first portion and the second portion;
a fourth portion comprising a filter material;
The aerosol-generating article, wherein the first portion, the second portion, the third portion, and the fourth portion are sequentially aligned with respect to a longitudinal direction of the aerosol-generating article. The tobacco sheet is rectangular,
2. The aerosol-generating article of claim 1, wherein the tobacco sheet has a length to width ratio of from 10:1 to 30:1. 2. The aerosol-generating article of claim 1, wherein the tobacco sheet is wrinkled or folded. 2. The aerosol-generating article of claim 1, wherein the tobacco sheet has a length in one direction of 180 mm or more. 2. The aerosol-generating article of claim 1, wherein said second portion comprises a plurality of said tobacco sheets. The tobacco sheet comprises 75-85 parts by weight of tobacco leaves, 5-20 parts by weight of a humectant, 3-10 parts by weight of pulp, and 3-10 parts by weight of a thickening agent based on 100 parts by weight of the whole tobacco sheet. 2. The aerosol-generating article according to 1. 2. The aerosol-generating article of claim 1, wherein the aerosol-generating article has a draw resistance of 20-60 mm _H2O . 2. The aerosol-generating article of claim 1, wherein a cross-section taken perpendicular to the longitudinal direction has at least one closed curve formed by said tobacco sheet. an aerosol-generating article according to claim 1;
an aerosol generating device that heats at least one of the first portion and the second portion of the aerosol generating article. the second portion comprises a folded tobacco sheet;
10. The aerosol generating system of claim 9, wherein the aerosol generator heats at least a portion of the first portion and at least a portion of the second portion to generate an aerosol.

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