CN113518562A

CN113518562A - Aerosol-generating article comprising a first package and a second package and aerosol-generating system using the aerosol-generating article

Info

Publication number: CN113518562A
Application number: CN202080018759.6A
Authority: CN
Inventors: 金英中; 奇圣钟; 朴仁洙; 李存台; 郑淳焕; 郑恩米
Original assignee: KT&G Corp
Current assignee: KT&G Corp
Priority date: 2019-12-18
Filing date: 2020-12-08
Publication date: 2021-10-19
Also published as: EP3908129A4; US20220142233A1; JP2022528046A; JP7291242B2; KR20210078323A; KR102412119B1; EP3908129A1; WO2021125668A1

Abstract

The present disclosure relates to aerosol-generating articles and aerosol-generating systems comprising the aerosol-generating articles, the aerosol-generating articles comprising a first package and a second package.

Description

Aerosol-generating article comprising a first package and a second package and aerosol-generating system using the aerosol-generating article

Technical Field

The present disclosure relates to aerosol-generating articles comprising a first package and a second package and aerosol-generating systems using the aerosol-generating articles.

Background

There is an increasing demand for aerosol-generating devices that generate an aerosol by heating an aerosol-generating substance in an aerosol-generating article, rather than by burning the aerosol-generating article. Accordingly, research into heated aerosol-generating articles and heated aerosol-generating devices has been actively conducted.

Unlike a combustion cigarette, a heating aerosol-generating article may contain a filler, such as a humectant, to facilitate aerosol generation. When a typical filter wrapper is used, liquid components, such as fillers, contained in the heated aerosol-generating article may leak.

In addition, since the heating type aerosol-generating article has a temperature difference between a region directly heated by the device and a region not directly heated, there is a problem that aerosol generation and/or nicotine transfer do not sufficiently proceed.

Disclosure of Invention

Technical scheme for solving problems

Aerosol-generating articles according to embodiments may address the above-mentioned problems of the current art.

However, the technical goals are not limited thereto, and other technical goals may be inferred from the following examples.

Advantageous effects of the invention

According to the aerosol-generating article according to an embodiment, leakage of the liquid component in at least one of the first portion and the second portion may be reduced. In particular, aerosol-generating articles according to embodiments may have oil resistance of 5 or greater based on the 3M KIT method.

In addition, according to the aerosol-generating article according to embodiments, heat may be efficiently transferred to regions of the first and second portions that are not directly heated by the heater.

Further, according to the aerosol-generating article according to embodiments, the entire package, including the first package and the second package, has sufficient tensile strength (about 4.5kgf or more), and thus, different portions of the aerosol-generating article do not separate from each other during the manufacturing process of the aerosol-generating article.

In addition, aerosol-generating articles according to embodiments may reduce spotting (i.e., oil marks) that may occur during the manufacturing and dispensing processes of the aerosol-generating article by including a first package made of a metallic material.

The effects of the present disclosure are not limited to the above-described effects, and may include all effects that can be inferred from configurations to be described later.

Drawings

Figure 1 is a view illustrating an example of inserting an aerosol-generating article into an aerosol-generating device, according to an embodiment;

figure 2 is a view illustrating an example of inserting an aerosol-generating article into an aerosol-generating device according to another embodiment;

figure 3 is a view illustrating an example of inserting an aerosol-generating article into an aerosol-generating device according to another embodiment;

figure 4 is a schematic diagram showing a configuration of an aerosol-generating article according to an embodiment;

figure 5 is a cross-sectional view of a second portion of an aerosol-generating article according to an embodiment;

figure 6 is a view illustrating insertion of an aerosol-generating article into an aerosol-generating device, according to an embodiment;

figure 7 is a graph illustrating a change in temperature of a second portion of an aerosol-generating article according to an embodiment; and

figure 8 is a photograph showing the extent of liquid leakage of an aerosol-generating article according to an embodiment.

Detailed Description

Best mode for carrying out the invention

According to a first aspect of the present disclosure, an aerosol-generating article comprises: a first portion comprising an aerosol generating substance; a second portion comprising tobacco material; a third section that cools the air passing through the first and second sections; a fourth portion comprising a filter material; a first package packaging at least one of the first portion and the second portion; and a second package packaging the first, third and fourth portions, wherein the first, second, third and fourth portions are arranged sequentially in a length direction of the aerosol-generating article.

The first package may have a thickness of about 5 μm to about 30 μm, and the second package may have a thickness of about 30 μm to about 70 μm.

The first package may include at least one of aluminum (Al), copper (Cu), zinc (Zn), gold (Au), silver (Ag), and iron (Fe), and the second package may include cellulose.

The first package may have an oil resistance of 5 or more based on the 3M KIT method and may have an oil resistance of about 50W · M^-1/K^-1To about 500 W.m^-1/K^-1Thermal conductivity of (2).

The first and second packages may have a combined tensile strength of about 4.5kgf to about 10 kgf.

According to a second aspect of the present disclosure, an aerosol-generating system comprises: an aerosol-generating article according to the first aspect; and an aerosol-generating device that heats at least one of the first and second portions of the aerosol-generating article.

When the aerosol-generating article is heated by use of the aerosol-generating device, the second portion may reach a maximum temperature in the range of from about 180 ℃ to about 250 ℃.

When the aerosol-generating article is heated by use of the aerosol-generating device, the second portion may be maintained at a temperature of 170 ℃ or more after 120 seconds have elapsed from the start of heating.

Each of the first and second portions has a length of from about 10mm to about 14mm, based on the length direction of the aerosol-generating article, and the aerosol-generating device may heat both a portion of the first portion and a portion of the second portion.

The technical solution is not limited to the above technical solution and may include all matters that can be completely inferred by those of ordinary skill in the art.

Aspects of the invention

With respect to terms in various embodiments, general terms that are currently widely used are selected in consideration of functions of structural elements in various embodiments of the present disclosure. However, the meanings of these terms may be changed according to intentions, judicial cases, the emergence of new technologies, and the like. Further, in some cases, terms that are not commonly used may be selected. In this case, the meaning of the terms will be described in detail at the corresponding parts in the description of the present disclosure. Accordingly, terms used in various embodiments of the present disclosure should be defined based on their meanings and the description provided herein.

Furthermore, unless explicitly described to the contrary, the terms "comprising" and variations such as "comprises" and "comprising," will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. In addition, the terms "-device", "-piece" and "module" described in the specification refer to a unit for processing at least one function and/or operation, and may be implemented by hardware components or software components, and a combination thereof.

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

As used herein, "a and/or B" refers to at least one of a and B.

Similarly, "-disposed on … …" means that a member is disposed on one surface of another member and includes both cases where a member is disposed in contact with another member or disposed in non-contact with another member.

As used herein, a statement such as "at least one of … …" when placed after a list of elements modifies the entire list of elements without modifying each element in the list. For example, the expression "at least one of a, b and c" is understood to mean: including only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

It will be understood that when an element or layer is referred to as being "on," "over," "on," "connected to," or "coupled to" another element or layer, it can be directly on, over, on, connected to, or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly over," "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like reference numerals refer to like elements throughout.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 to 3 are diagrams illustrating examples in which an aerosol-generating article 20000 is inserted into an aerosol-generating device 10000.

Referring to fig. 1, aerosol-generating device 10000 may include a battery 11000, a controller 12000, and a heater 13000. Referring to fig. 2 and 3, the aerosol-generating device 10000 may further comprise a vaporizer 14000. Furthermore, an aerosol-generating article 20000 may be inserted into the interior space of the aerosol-generating device 10000.

Fig. 1 to 3 show components of an aerosol-generating device 10000 relevant to an example embodiment. Accordingly, a person of ordinary skill in the art to which this embodiment relates will appreciate that other general components may be included in the aerosol-generating device 10000 in addition to those shown in fig. 1 to 3.

In addition, fig. 1 and 3 show that the aerosol-generating device 10000 comprises a heater 13000. However, the heater 13000 can be omitted as desired.

Fig. 1 shows that a battery 11000, a controller 12000, and a heater 130000 are arranged in series. Further, fig. 2 shows that a battery 11000, a controller 12000, a vaporizer 14000, and a heater 13000 are arranged in series. Further, fig. 3 shows that the vaporizer 14000 and the heater 13000 are arranged in parallel. However, the internal structure of the aerosol-generating device 10000 is not limited to the structure shown in fig. 1 to 3. In other words, the battery 11000, the controller 12000, the heater 13000, and the vaporizer 14000 may be arranged in different ways depending on the design of the aerosol-generating device 10000.

When the aerosol-generating article 20000 is inserted into the aerosol-generating device 10000, the aerosol-generating device 10000 may operate the heater 13000 and/or the vaporizer 14000 to generate an aerosol from the aerosol-generating article 20000 and/or the vaporizer 14000. The aerosol generated by the heater 13000 and/or the vaporizer 14000 is delivered to the user by passing through the aerosol-generating article 20000.

If desired, the aerosol-generating device 10000 may heat the heater 13000 even when the aerosol-generating article 20000 is not inserted into the aerosol-generating device 10000.

The battery 11000 may supply power for operating the aerosol-generating device 10000. For example, the battery 11000 may supply power to heat the heater 13000 or the vaporizer 14000, and may also supply power for the operation of the controller 12000 to the controller 12000. Further, the battery 11000 may supply electric power for operating a display, a sensor, a motor, and the like installed in the aerosol-generating device 10000.

The controller 12000 may generally control the operation of the aerosol-generating device 10000. In detail, the controller 12000 may control not only the operation of the battery 11000, the heater 13000, and the vaporizer 14000, but also the operation of other components included in the aerosol-generating device 10000. Further, the controller 12000 can check the status of each of the components of the aerosol-generating device 10000 to determine whether the aerosol-generating device 10000 is capable of operating.

The controller 12000 may include at least one processor. A processor may be implemented as an array of multiple logic gates, or as a combination of a general-purpose microprocessor and memory storing programs that may be executed in the microprocessor. Those of ordinary skill in the art will appreciate that a processor may be implemented in other forms of hardware.

The heater 13000 can be heated by electric power supplied from the battery 11000. For example, when the aerosol-generating article 20000 is inserted into the aerosol-generating device 10000, the heater 13000 may be located outside the aerosol-generating article 20000. Thus, the heated heater 13000 can increase the temperature of the aerosol generating substance in the cigarette 20000.

Heater 13000 can comprise a resistive heater. For example, heater 13000 can include conductive traces, and heater 13000 can be heated when current flows through the conductive traces. However, the heater 13000 is not limited to the above example, and may include all heaters that can be heated to a desired temperature. Here, the desired temperature may be set in advance in the aerosol-generating device 10000, or may be set to a temperature desired by a user.

In another example, the heater 13000 can comprise an induction heater. In detail, the heater 13000 may comprise an electrically conductive coil for heating the aerosol-generating article in an inductive heating method, and the aerosol-generating article may comprise a base that may be heated by the inductive heater.

For example, the heater 13000 may comprise a tube-type heating element, a plate-type heating element, a needle-type heating element or a rod-type heating element, and the interior or exterior of the aerosol-generating article 20000 may be heated depending on the shape of the heating element.

Furthermore, the aerosol-generating device 10000 may comprise a plurality of heaters 13000. Here, the plurality of heaters 13000 may be inserted into the aerosol-generating article 20000 or may be provided outside the aerosol-generating article 20000. Furthermore, some of the plurality of heaters 13000 may be inserted into the aerosol-generating article 20000, while other heaters may be provided outside the aerosol-generating article 20000. In addition, the shape of the heater 13000 is not limited to the shape shown in fig. 1 to 3 and may include various shapes.

The vaporizer 14000 can generate an aerosol by heating the liquid composition and the generated aerosol can be delivered to a user through the aerosol-generating article 20000. In other words, the aerosol generated via the vaporizer 14000 can move along an air flow channel of the aerosol-generating device 10000, and the air flow channel can be configured such that the aerosol generated via the vaporizer 14000 is delivered to the user through the cigarette 20000.

For example, vaporizer 14000 can include a liquid storage, a liquid delivery element, and a heating element, but is not limited thereto. For example, the liquid reservoir, the liquid transfer element and the heating element may be comprised in the aerosol-generating device 10000 as separate modules.

The liquid storage part can store liquid composition. For example, the liquid composition can be a liquid that includes a tobacco-containing material having a volatile tobacco flavor component, or a liquid that includes a non-tobacco material. The liquid storage portion may be formed to be attached/detached to/from the vaporizer 14000 or may be integrally formed with the vaporizer 14000.

For example, the liquid composition may include water, solvents, ethanol, plant extracts, flavors, fragrances, or vitamin mixtures. Flavors may include, but are not limited to, menthol, peppermint, spearmint, and various fruit flavor components. The scents may include ingredients that provide a variety of scents or tastes to the user. 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. In addition, the liquid composition may include aerosol-forming materials such as glycerin and propylene glycol.

The liquid transfer element may transfer the liquid composition of the liquid reservoir to the heating element. For example, the liquid transport element may be a core (wick), such as, but not limited to, cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

The heating element is an element for heating the liquid composition delivered by the liquid delivery element. For example, the heating element may be a metal heating wire, a metal hot plate, a ceramic heater, or the like, but is not limited thereto. Additionally, the heating element may include a conductive wire, such as a nichrome wire, and the heating element may be wrapped around the liquid transport element. The heating element may be heated by an electric current and may transfer heat to the liquid composition in contact with the heating element, thereby heating the liquid composition. As a result, an aerosol can be generated.

For example, vaporizer 14000 may be referred to as a cartomizer or an atomizer, but is not limited thereto.

The aerosol-generating device 10000 may comprise other components in addition to the battery 11000, the controller 12000, the heater 13000, and the vaporizer 14000. For example, the aerosol-generating device 10000 may comprise a display capable of outputting visual information and/or a motor for outputting tactile information. Further, the aerosol-generating device 10000 may comprise at least one sensor (e.g., a puff detection sensor, a temperature detection sensor, a cigarette insertion detection sensor, etc.). Further, the aerosol-generating device 10000 may be formed in a structure in which external air can be introduced or internal air can be discharged even when the cigarette 20000 is inserted into the aerosol-generating device 10000.

Although not shown in fig. 1-3, the aerosol-generating device 10000 may form a system with an additional carrier. For example, the cradle may be used to charge the battery 11000 of the aerosol-generating device 10000. Alternatively, the heater 13000 may be heated when the carriage and the aerosol-generating device 10000 are coupled to each other.

As an example, external air may be introduced through at least one air channel formed in the aerosol-generating device 10000. For example, the opening and closing of the air channel and/or the size of the air channel formed in the aerosol-generating device 10000 may be adjusted by a user. Thus, the user can adjust the amount and quality of the smoke. As another example, external air may be introduced into the interior of the aerosol-generating article 20000 through at least one aperture formed on a surface of the aerosol-generating article 20000.

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

According to an embodiment, the aerosol-generating article 20000 may comprise a first portion 21000, a second portion 22000, a third portion 23000 and a fourth portion 24000, the first portion 21000, the second portion 22000, the third portion 23000 and the fourth portion 24000 being arranged consecutively in a length direction of the aerosol-generating article 20000. As an example, the first portion 21000 can include an aerosol generating substance, the second portion 22000 can include a tobacco substance, the third portion 23000 can cool air and aerosol passing through the first portion 21000 and the second portion 22000, and the fourth portion 24000 can include a filter material.

In an embodiment, the first portion 21000, the second portion 22000, the third portion 23000 and the fourth portion 24000 may be arranged sequentially in a length direction of the aerosol-generating article 20000. Accordingly, aerosol generated in at least one of the first portion 21000 and the second portion 22000 can sequentially pass through the first portion 21000, the second portion 22000, the third portion 23000, and the fourth portion 24000, and thus, a user can inhale aerosol from the fourth portion 24000.

In an embodiment, the first portion 21000 can have a length of about 8mm to about 12mm, and the second portion 22000 can have a length of about 10mm to about 14 mm. However, the embodiment is not necessarily limited to this numerical range, and the lengths of the first portion 21000 and the second portion 22000 may be appropriately adjusted within a range that can be easily changed by those skilled in the art.

In particular, the first portion 21000 can include an aerosol generating substance. In this case, the aerosol-generating substance may comprise, for example, at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol.

The second portion 22000 can include a tobacco material. In the case of a heating cigarette, tobacco leaves, reconstituted tobacco, expanded tobacco, and the like can be used as the tobacco material, for example. In addition, second portion 22000 can comprise a tobacco sheet having a continuous extended length. Further, the second portion 22000 can additionally include an aerosol generating substance, such as a humectant. The composition of the aerosol generating substance comprised in the second portion 22000 may be the same as the composition of the aerosol generating substance comprised in the first portion 21000. However, the present disclosure is not necessarily limited thereto.

The third portion 23000 can cool an airflow formed by aerosol generated in at least one of the first portion 21000 and the second portion 22000. The third portion 23000 can be made of a polymeric material or a biodegradable polymeric material and can have a cooling function. For example, the third portion 23000 can be made of polylactic acid (PLA) fibers, but is not limited thereto. Alternatively, the third portion 23000 can be made of a cellulose acetate filter having a plurality of holes. However, the third portion 23000 is not limited to the above example, and the material performing the function of cooling the aerosol may correspond to the third portion 23000 without limitation. For example, the third portion 23000 can be a tube filter or paper tube that includes a hollow portion.

The fourth portion 24000 may include filter material. For example, the fourth portion 24000 may be a cellulose acetate filter. 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 including a hollow therein. Further, the fourth portion 24000 may be a female-type rod. When the fourth portion 24000 includes multiple sections, at least one of the multiple sections may be made in different shapes.

The fourth portion 24000 can be flavored. As an example, a fragrant liquid may be sprayed on the fourth portion 24000, or a separate fiber coated with a fragrant liquid may be inserted into the fourth portion 24000.

In an embodiment, the aerosol-generating article 20000 may comprise a first package 25000 and a second package 26000. For example, first package 25000 can package at least one of first portion 21000 and second portion 22000. Further, for example, second package 26000 can package first package 25000, third portion 23000, and fourth portion 24000. For example, first package 25000 may only package first portion 21000 or second portion 22000. Alternatively, first package 25000 can package all of first portion 21000 and a portion of second portion 22000. In any case, the second package 26000 can package the first package 25000, the third portion 23000, and the fourth portion 24000. However, the present disclosure is not necessarily limited thereto.

In an embodiment, the second package 26000 may be located at an outermost portion of the aerosol-generating article 20000, and the second package 26000 may have at least one aperture through which external air flows in or internal gases flow out. The second package 26000 may be a single package or a combination of multiple packages.

As an example, the first portion 21000 of the aerosol-generating article 20000 may comprise crimped corrugated sheets containing the aerosol-generating substance, and the second portion 22000 may comprise tobacco leaves. The third section 23000 can include a cooler and the fourth section 24000 can include a filter material. The first package 25000 may be formed of a silver (Ag) film or a copper (Cu) film, and the second package 26000 may be formed of a cellulose package. However, the present disclosure is not necessarily limited thereto.

When the aerosol-generating article 20000 is coupled to the aerosol-generating device 10000, the first portion 21000 and the second portion 22000 may be inserted into the aerosol-generating device 10000 and the third portion 23000 and the fourth portion 24000 may be exposed to the outside. In another example, the entire first portion 21000 and a portion of the second portion 22000 may be inserted into the aerosol-generating device 10000. The user can inhale the aerosol when the fourth portion 24000 is placed in the user's mouth. In this case, aerosol is generated when the external air passes through the first and second portions, and the generated aerosol may pass through the third and fourth portions and be delivered to the mouth of the user.

Figure 5 is a cross-sectional view of a second portion 22000 of an aerosol-generating article 20000 according to an embodiment. Although not shown in fig. 5, first portion 21000 can also be wrapped by first wrapper 25000. Thus, the description of the first and

second packages

25000 and 26000 that will be described below may apply equally to the first portion 21000 and the second portion 22000.

In an embodiment, the second portion 22000 of the aerosol-generating article 20000 may comprise a tobacco substance 100, a first package 25000 and a second package 26000, the tobacco substance 100, the first package 25000 and the second package 26000 may be arranged sequentially from the inside. The tobacco material 100 may be contained in the second portion 22000 in the form of, for example, tobacco lamina.

In an embodiment, the first package 25000 can have a cylindrical shape and can package the tobacco substance 100. The first package 25000 can have a thickness d1 of about 5 μm to about 30 μm. As such, heat may be suitably transferred to regions of the first portion 21000 and the second portion 22000 that are not directly heated by the aerosol-generating device, and leakage of liquid components, such as humectants, included in at least one of the first portion 21000 and the second portion 22000 may be reduced. Further, the tensile strength of the entire package including the first package 25000 and the second package 26000 can be improved.

In an embodiment, first package 25000 may haveAbout 50 W.m^-1/K^-1To about 500 W.m^-1/K^-1Thermal conductivity of (2). Since the aerosol-generating article 20000 according to an embodiment comprises the first package 25000 made of a metallic material, the thermal conductivity in the aerosol-generating article 20000 may be increased by free electrons and, thus, regions of the aerosol-generating article 20000 that are not directly heated may be efficiently heated.

In addition, the first package 25000 may include at least one of aluminum (Al), copper (Cu), zinc (Zn), gold (Au), silver (Ag), and iron (Fe). Preferably, the first package 25000 may have a cylindrical shape formed of a metal film. For example, the first package 25000 may have a cylindrical shape made of aluminum foil, copper foil, or silver foil. Since the first package 25000 has a cylindrical shape formed of a metal film, heat can be efficiently transferred to regions of the first portion 21000 and the second portion 22000 which are not directly heated by the apparatus, and leakage of a liquid component, such as a humectant, included in at least one of the first portion 21000 and the second portion 22000 can be reduced.

In an embodiment, the second package 26000 can have a thickness d2 of about 30 μm to about 70 μm. The second package 26000 may fully package the aerosol-generating article 20000. For example, second package 26000 can package first package 25000, third section 23000, and fourth section 24000. Thus, first portion 21000 and second portion 22000 may be packaged by both first package 25000 and second package 26000, while third portion 23000 and fourth portion 24000 may be packaged only by second package 26000. However, the present disclosure is not necessarily limited thereto.

The second package 26000 may comprise cellulose or dextrin. Preferably, the second package 26000 may be a cellulose package.

In an embodiment, the entire package, including both the first package 25000 and the second package 26000, may have a thickness (d1+ d2) of about 35 μm to about 100 μm. In this way, leakage of liquid components, such as the humectant, to the outside can be reduced.

Further, first package member 25000 and second package member 26000 together can have a combined tensile strength of about 4.5kgf to about 10 kgf. As such, different parts of the aerosol-generating article 20000 are not separated from each other during the manufacture of the aerosol-generating article 20000.

Figure 6 is a view illustrating the insertion of an aerosol-generating article 20000 according to an embodiment into an aerosol-generating device 10. For convenience of description, the third and fourth parts of the aerosol-generating article 20000 are omitted in figure 6.

Another aspect of the present disclosure may provide an aerosol-generating system comprising the aerosol-generating article 20000 described above and an aerosol-generating device 10 for heating at least one of the first portion 21000 and the second portion 22000 of the aerosol-generating article 20000.

Referring to fig. 6, the aerosol-generating device 10 may comprise a receiving space 12 for receiving an aerosol-generating article 20000 and a heating element 11 for heating the aerosol-generating article 20000.

In an embodiment, the aerosol-generating article 20000 may be inserted into the receiving space 12, and the heating element 11 may receive power from a battery (not shown) of the aerosol-generating device 10 and heat the first and

second portions

21000, 22000 of the aerosol-generating article 20000. Specifically, the heating element 11 may heat a portion of the first portion 21000 and a portion of the second portion 22000. For example, the heating element 11 may heat a portion of the first portion 21000 and a portion of the second portion 22000, while the portion of the first portion 21000 and the portion of the second portion 22000 are the portions facing the heating element 11, as shown in fig. 6. Thus, other portions of the first portion 21000 and the second portion 22000 may not be directly heated.

In an embodiment, first package 25000 can efficiently transfer heat transferred from heating element 11 to first portion 21000 and second portion 22000. In particular, the measurement point M of the aerosol-generating article 20000 as shown in fig. 6 may not be directly heated, since the measurement point M does not face the heating element 11. However, according to the present disclosure, since the first package 25000 has excellent thermal conductivity, the first package 25000 may efficiently transfer heat supplied from the heating element 11 to the measurement point M in the length direction of the aerosol-generating article 20000. Accordingly, the entire first and

second portions

21000 and 22000 can uniformly receive heat, and the amount of aerosol formed by heating the first and

second portions

21000 and 22000 can be increased and the amount of nicotine transferred can be increased.

Fig. 7 is a graph illustrating the temperature change of the second portion 22000 over time when the first and

second packages

25000, 26000 are applied to the aerosol-generating article 20000, according to an embodiment. In particular, after inserting the aerosol-generating article 20000 into the aerosol-generating device 10 and operating the heating element 11 as shown in fig. 6, a temperature change at the measurement point M corresponding to the second portion 22000 is measured.

Referring to figure 7, in a comparative example, an aerosol-generating article without a package was found to have a slow rate of rise in temperature, with an average temperature of about 140 ℃ and a maximum temperature of about 170 ℃. On the other hand, aerosol-generating articles comprising silver foil packages according to embodiments were found to have a fast rate of temperature rise, with an average temperature of about 170 ℃ and a maximum temperature of about 190 ℃, and were evaluated for having excellent thermal insulation effects due to the silver foil packages.

Furthermore, it was found that aerosol-generating articles comprising copper foil packages according to embodiments have the fastest rate of temperature rise, with an average temperature of about 180 ℃ and a maximum temperature of about 190 ℃, and the aerosol-generating articles exhibit the best thermal insulation due to the copper foil packages.

It has been identified that when the aerosol-generating article 20000 according to embodiments is heated by use of the aerosol-generating device 10, the second portion 22000 may have a maximum temperature in the range of about 180 ℃ to about 250 ℃.

Furthermore, it has been confirmed that when the aerosol-generating article 20000 according to embodiments is heated by using the aerosol-generating device 10, the second portion 22000 may be kept at a temperature of about 170 ℃ or higher after 120 seconds have elapsed from the start of heating.

Based on the 3M KIT method, first package 25000 can have oil resistance of 5 or greater. Oil resistance measurement by the 3M KIT method was performed as follows.

Principle of

The 3M KIT method is a method generally used for analyzing the oil resistance of paper. In this method, a solution for measuring oil resistance is prepared and dropped onto a test piece, and after a certain period of time, the oil resistance is determined from the highest solution number that does not leave any oil mark on the test piece.

Apparatus and device

As the storage bottle, a storage bottle made of a glass cap or a foil-lined cap to prevent evaporation is used. As the test bottle, a bottle equipped with a dropper or a rod capable of dropping the solution onto the test piece was used.

Test methods

Kit number	Castor oil [ ml ]]	Toluene [ ml ]]	Heptane [ ml ]]
				1	200	0	0
2	180	10	10
				3	160	20	20
4	140	30	30
				5	120	40	40
6	100	50	50
				7	80	60	60
8	60	70	70
				9	40	80	80
10	20	90	90
				11	0	100	100
12	0	90	110

The solution was prepared by mixing castor oil, toluene and heptane in the proportions identified by the Kit number as shown in the table above.

The test was conducted starting from a low Kit number reagent on a test piece, and after dropping the prepared reagent on the test piece for 15 seconds, the dropped reagent was removed using dipped cotton or thin paper and examined for oil marks.

If no oil mark appears, the experiment is continued while increasing the Kit number, and the experiment is performed until oil marks appear. Oil resistance was evaluated by applying Kit No. with no final oil marks.

As a result of evaluating the oil resistance of the aerosol-generating article according to the present disclosure based on the 3M KIT method described above, it was confirmed that the first package 25000 according to the embodiment may have an oil resistance of 5 or more based on the 3M KIT method.

Figure 8 is a photograph showing the degree of liquid leakage of aerosol-generating articles according to comparative examples and embodiments.

Referring to figure 8, as a comparative example, in an aerosol-generating article without a package, it can be observed that the leakage of the liquid component of the second portion is relatively high. On the other hand, in the aerosol-generating article using a package according to embodiments, it may be observed that leakage of the liquid component of the second portion is relatively small and hardly occurs. Thus, there is an advantage in improving the oil resistance of aerosol-generating articles according to the present disclosure.

Although not depicted by the figures, according to embodiments, the first package may only package a first portion of the aerosol-generating article.

In particular, the present disclosure may provide an aerosol-generating article comprising: a first portion comprising an aerosol generating substance; a second portion comprising tobacco material; a third portion for cooling the air passing through the first and second portions; and a fourth portion comprising a filter material, wherein the first portion, the second portion, the third portion, and the fourth portion are arranged in order based on a length direction of the aerosol-generating article, the aerosol-generating article further comprising: a first package for packaging the first portion; and a second package that packages the first, second, third and fourth portions.

The embodiments described previously are equally applicable to the above case. However, since the first package made of metal only packages the first part of the aerosol-generating article, the thermal conductivity of the first part may be increased and leakage of the humectant component of the aerosol-generating substance included in the first part may be reduced. In particular, in the case of aerosol-generating articles according to embodiments, the effect of preventing leakage may be important as the aerosol-generating substance contained in the first portion may be included in liquid form. By preventing or reducing leakage from the first portion through the first wrapper, the durability of the aerosol-generating article may be improved and a better smoking sensation may be provided to the user.

Furthermore, according to embodiments, the first package may only package the second portion of the aerosol-generating article. In this case, the thermal conductivity of the second part may be increased and leakage of the humectant component included in the aerosol-generating substance in the second part may be reduced.

According to an example embodiment, at least one of the components, elements, modules or units (collectively referred to as "components" in this paragraph), e.g., the controller 12000 in fig. 1-3 and 6, represented by the blocks in the figures, may be implemented as a various number of hardware, software and/or firmware structures that perform the respective functions described above. For example, at least one of these components may use direct circuit structures, such as memories, processors, logic circuits, look-up tables, or the like, which may be controlled by one or more microprocessors or other control devices to perform the corresponding functions. Additionally, at least one of these components may be embodied by a module, program, or portion of code that contains one or more executable instructions for performing specific logical functions and that is executed by one or more microprocessors or other control devices. Further, at least one of these components may include or be implemented by a processor, a microprocessor, or the like, such as a Central Processing Unit (CPU) that performs the respective function. Two or more of these components may be combined into a single component that performs all of the operations or functions of the two or more components combined. In addition, at least a portion of the functionality of at least one of these components may be performed by another of these components. Further, although a bus is not shown in the above block diagram, communication between the components may be performed through the bus. The functional aspects of the above exemplary embodiments may be implemented as algorithms executed on one or more processors. Further, the components represented by the blocks or process steps may be electronically configured, signal processed and/or controlled, data processed, etc., using any number of interrelated techniques.

The above description of embodiments is merely exemplary, and it will be understood by those of ordinary skill in the art that various changes may be made and equivalents may be substituted for elements thereof. Therefore, the scope of the present disclosure should be defined by the appended claims, and all differences within the scope equivalent to the scope described in the claims will be construed as being included in the protection scope defined in the claims.

Claims

1. An aerosol-generating article comprising:

a first portion comprising an aerosol generating substance;

a second portion comprising a tobacco material;

a third portion that cools air passing through the first portion and the second portion;

a fourth portion comprising a filter material;

a first package packaging at least one of the first portion and the second portion; and

a second package that packages the first package, the third portion, and the fourth portion,

wherein the first portion, the second portion, the third portion and the fourth portion are arranged sequentially in a length direction of the aerosol-generating article.

2. An aerosol-generating article according to claim 1,

the first package has a thickness of about 5 μm to about 30 μm, and

the second package has a thickness of about 30 μm to about 70 μm.

3. An aerosol-generating article according to claim 1, wherein the first package comprises at least one of aluminum (Al), copper (Cu), zinc (Zn), gold (Au), silver (Ag), and iron (Fe), and the second package comprises cellulose.

4. An aerosol-generating article according to claim 1, wherein the first package has an oil resistance of 5 or greater based on the 3M KIT method and has an oil resistance of about 50W-M^-1/K^-1To about 500 W.m^-1/K^-1Thermal conductivity of (2).

5. An aerosol-generating article according to claim 1, wherein the first and second packages have a combined tensile strength of from about 4.5kgf to about 10 kgf.

6. An aerosol-generating system comprising:

an aerosol-generating article according to claim 1; and

an aerosol-generating device configured to heat at least one of the first portion and the second portion of the aerosol-generating article.

7. An aerosol-generating system according to claim 6, wherein the second portion has a maximum temperature in the range of from about 180 ℃ to about 250 ℃ when the aerosol-generating article is heated by use of the aerosol-generating device.

8. An aerosol-generating system according to claim 6, wherein when the aerosol-generating article is heated by use of the aerosol-generating device, the second portion is maintained at a temperature of 170 ℃ or more after 120 seconds have elapsed from the start of heating.

9. An aerosol-generating system according to claim 6,

each of the first portion and the second portion has a length of about 10mm to about 14mm, an

The aerosol-generating device is configured to heat both a portion of the first portion and a portion of the second portion.