KR20230002256A - Aerosol generating article and system comprising tobacco material - Google Patents

Abstract

The present disclosure relates to an aerosol generating article and an aerosol generating system, which contain tobacco substances. The aerosol generating system includes the aerosol generating article and an aerosol generating device. The aerosol generating article according to the present disclosure may provide a sufficient nicotine delivery amount at a heating temperature of about 130 ℃.

Description

AEROSOL GENERATING ARTICLE AND SYSTEM COMPRISING TOBACCO MATERIAL

The present disclosure relates to aerosol-generating articles and systems comprising tobacco material.

In recent years there has been a growing demand for alternative methods that overcome the disadvantages of conventional cigarettes and smoking articles. For example, there is an increasing demand for a method of generating an aerosol as the aerosol-generating material in the cigarette is heated, rather than a method of generating an aerosol by burning the cigarette. Accordingly, research on smoking articles or devices that operate in various ways is being actively conducted.

The problem to be solved by the present disclosure is to heat an aerosol-generating article at a relatively low temperature to deliver sufficient nicotine.

The technical problem to be achieved by the present disclosure is not limited to the technical problem as described above, and other technical problems may be inferred from the following embodiments.

A first aspect of the present disclosure is an aerosol-generating article comprising: a first portion comprising a support element; a second portion comprising tobacco elements; a third part comprising a cooling element; and a fourth portion comprising a filter element; wherein the first portion, the second portion, the third portion, and the fourth portion are arranged in sequence along a longitudinal direction of the aerosol-generating article; The tobacco component may provide an aerosol-generating article comprising tobacco material and a pH adjusting agent.

In an embodiment, the tobacco component has a granular form, and the tobacco component may have a pH value of 7.0 to 9.0.

In an embodiment, the tobacco element may include a plurality of granules having a diameter of 0.5 to 1.5 mm.

In an embodiment, the tobacco component may further include a binder and moisture.

In an embodiment, the pH adjusting agent is an alkali metal carbonate, an alkaline earth metal carbonate, an alkali metal hydrogen carbonate, an alkaline earth metal hydrogen carbonate, an alkali metal hydroxide, an alkaline earth metal hydroxide, an alkali metal phosphate, an alkaline earth metal phosphate, an alkali metal phosphate, an alkaline earth metal It may include at least one of phosphates, alkali metal hydrogen phosphate monohydrogen salts and alkaline earth metal phosphate monohydrogen salts.

In an embodiment, the pH adjuster may include at least one of sodium carbonate, potassium carbonate, calcium carbonate, sodium hydroxide, potassium hydroxide, calcium hydroxide, and calcium oxide.

In an embodiment, a first wrapper surrounding at least one of the first part, the second part, the third part, and the fourth part may be further included.

In an embodiment, at least one of the first part and the third part may include a hollow tube filter.

A second aspect of the present disclosure includes an aerosol-generating article according to the first aspect; and an aerosol-generating device comprising an accommodation space accommodating the aerosol-generating article, a heating element for heating the aerosol-generating article, and a battery supplying power to the heating element. there is.

In an embodiment, the tobacco component has a granular form, and the tobacco component may have a pH value of 7.0 to 9.0.

In an embodiment, the heating element may be disposed to surround the accommodation space.

In an embodiment, the aerosol generating device may heat at least a portion of the second portion.

In an embodiment, the aerosol generating device may heat at least a portion of the second portion to a temperature of 130° C. or less.

The means for solving the problem is not limited to the above, and may include all matters that can be inferred by a person skilled in the art throughout this specification.

Aerosol-generating articles according to the present disclosure may have sufficient nicotine delivery at a heating temperature of about 130°C.

Effects of the present disclosure are not limited to those described above, and may include all effects inferred from configurations to be described later.

1 is a view showing an example in which an aerosol-generating article is inserted into an externally heated aerosol-generating device.
Fig. 2 shows another example in which an aerosol-generating article is inserted into an externally heated aerosol-generating device;
3 schematically illustrates the structure of an aerosol-generating article according to one embodiment.
4 is a cross-sectional view of an aerosol-generating article according to one embodiment.
5 is a diagram illustrating a method and system for generating an aerosol using an aerosol-generating article and device according to one embodiment.

The terms used in the embodiments have been selected from general terms that are currently widely used as much as possible while considering the functions in the present disclosure, but they may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technologies, and the like. In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the invention. Therefore, terms used in the present disclosure should be defined based on the meaning of the term and the general content of the present disclosure, not simply the name of the term.

When it is said that a certain part "includes" a certain component throughout the specification, it means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as "...unit" and "...module" described in the specification mean a unit that processes at least one function or operation, which is implemented as hardware or software or a combination of hardware and software. It can be.

Throughout the specification, "support element" means an element that supports a certain member. For example, in FIG. 4 , the first portion 110 comprising a support element may support the second portion 120 or the aerosol-generating article 100 .

Throughout the specification, "tobacco element" means an element comprising tobacco material.

Throughout the specification, “tobacco material” means any form of material that includes components derived from tobacco leaves. For example, the tobacco material may be tobacco cut filler, tobacco particles, tobacco sheets, tobacco beads, tobacco granules, or tobacco extract.

Throughout the specification, "cooling element" means an element that cools a certain material. For example, the cooling element may cool an aerosol generated from the tobacco element.

Throughout the specification, "filter element" means an element comprising a filtering material. For example, a filter element may include a plurality of fiber strands.

Throughout the specification, "pH adjustment agent" means a substance that adjusts the pH value of a substance. For example, adding a pH adjusting agent to a substance can make it acidic or basic.

Hereinafter, with reference to the accompanying drawings, embodiments of the present disclosure will be described in detail so that those skilled in the art can easily carry out the present disclosure. However, the present disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

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

1 is a view showing an example in which an aerosol-generating article 20000 is inserted into an externally heated aerosol-generating device 10000.

Referring to FIG. 1 , an aerosol generating device 10000 includes a battery 11000, a processor 12000, a heater 13000, and a vaporizer 14000. In addition, the aerosol generating article 20000 may be inserted into the inner space of the aerosol generating device 10000.

Components related to the present embodiment are shown in the aerosol generating device 10000 shown in FIG. 1 . Accordingly, those of ordinary skill in the art related to the present embodiment may understand that other general-purpose components other than the components shown in FIG. 1 may be further included in the aerosol generating device 10000.

1 shows a battery 11000, a processor 12000, and a heater 13000 arranged in a line. However, the internal structure of the aerosol generating device 10000 is not limited to that shown in FIG. 1 . In other words, according to the design of the aerosol generating device 10000, the arrangement of the battery 11000, the processor 12000, and the heater 13000 may be changed.

When the aerosol generating article 20000 is inserted into the aerosol generating device 10000, the aerosol generating device 10000 may generate an aerosol by operating the heater 13000. The aerosol generated by the heater 13000 passes through the aerosol-generating article 20000 and is delivered to the user.

If necessary, 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 supplies power used for the operation of the aerosol generating device 10000. For example, the battery 11000 may supply power to heat the heater 13000 and supply power necessary for the processor 12000 to operate. In addition, the battery 11000 may supply power necessary for the display, sensor, motor, etc. installed in the aerosol generating device 10000 to operate.

The processor 12000 controls the overall operation of the aerosol generating device 10000. Specifically, the processor 12000 controls the operation of not only the battery 11000 and the heater 13000 but also other components included in the aerosol generating device 10000. Also, the processor 12000 may check the state of each component of the aerosol generating device 10000 to determine whether the aerosol generating device 10000 is in an operable state.

The processor 12000 may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which programs executable by the microprocessor are stored. Also, those having ordinary knowledge in the art to which this embodiment belongs can understand that it may be implemented in other types of hardware.

The heater 13000 may be heated by power supplied from the battery 11000 . For example, when an aerosol-generating article is inserted into the aerosol-generating device 10000, the heater 13000 may be positioned outside the aerosol-generating article. Thus, the heated heater 13000 can raise the temperature of the aerosol-generating material within the aerosol-generating article.

The heater 13000 may be an electrical resistive heater. For example, the heater 13000 may include an electrically conductive track, and the heater 13000 may be heated as current flows through the electrically conductive track. However, the heater 13000 is not limited to the above example, and any heater 13000 may be heated to a desired temperature without limitation. Here, the desired temperature may be previously set in the aerosol generating device 10000 or may be set to a desired temperature by the user.

For example, the heater 13000 may be elongated (eg, rod-shaped, needle-shaped, blade-shaped) or may be cylindrical, and may heat the inside or outside of the aerosol-generating article 20000 depending on the shape of the heating element. there is.

In addition, a plurality of heaters 13000 may be disposed in the aerosol generating device 10000. At this time, the plurality of heaters 13000 may be disposed to be inserted inside the aerosol-generating article 20000 or may be disposed outside the aerosol-generating article 20000. Also, some of the plurality of heaters 13000 may be disposed to be inserted into the aerosol-generating article 20000, and others may be disposed outside the aerosol-generating article 20000. In addition, the shape of the heater 13000 is not limited to the shape shown in FIG. 1 and may be manufactured in various shapes.

Meanwhile, the aerosol generating device 10000 may further include general-purpose components other than the battery 11000, the processor 12000, and the heater 13000. For example, the aerosol generating device 10000 may include a display capable of outputting visual information and/or a motor for outputting tactile information. In addition, the aerosol generating device 10000 may include at least one sensor (a puff detection sensor, a temperature detection sensor, an aerosol generating article insertion detection sensor, etc.). In addition, the aerosol generating device 10000 may be manufactured in a structure in which external air may flow in or internal gas may flow out even when the aerosol generating article 20000 is inserted.

Although not shown in FIG. 1, the aerosol generating device 10000 may constitute a system together with a separate cradle. 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 in a state in which the cradle and the aerosol generating device 10000 are coupled.

As an example, external air may be introduced through at least one air passage formed in the aerosol generating device 10000. For example, the opening and closing of the air passage formed in the aerosol generating device 10000 and/or the size of the air passage may be adjusted by the user. Accordingly, the amount of smoke and the feeling of smoking can be adjusted by the user. As another example, outside air may be introduced into the aerosol-generating article 20000 through at least one hole formed on a surface of the aerosol-generating article 20000.

Referring to FIG. 1 , an aerosol generating device 10000 may include a vaporizer 14000.

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

The battery 11000 may supply power so that the vaporizer 14000 can be heated. The processor 12000 controls the operation of the vaporizer 14000.

The vaporizer 14000 may generate an aerosol by heating the liquid composition, and the generated aerosol may pass through the aerosol generating article 20000 and be delivered to a user. In other words, the aerosol generated by the vaporizer 14000 can move along the air flow path of the aerosol generating device 10000, and the air flow path allows the aerosol generated by the vaporizer 14000 to pass through the aerosol-generating article so that the user can use it. It can be configured so that it can be delivered to.

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

The liquid reservoir may store a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing material including a volatile tobacco flavor component, or may be a liquid containing a non-tobacco material. The liquid storage unit may be manufactured to be detachable from/attached to/from the vaporizer 14000, or may be manufactured integrally with the vaporizer 14000.

For example, liquid compositions may include water, solvents, ethanol, plant extracts, fragrances, flavors, or vitamin mixtures. Fragrance may include menthol, peppermint, spearmint oil, various fruit flavor components, etc., but is not limited thereto. Flavoring agents can include ingredients that can provide a variety of flavors or flavors 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. Liquid compositions may also contain aerosol formers such as glycerin and propylene glycol.

The liquid delivery means may deliver the liquid composition of the liquid reservoir to the heating element. For example, the liquid delivery means may be a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not limited thereto.

The heating element is an element for heating the liquid composition delivered by the liquid delivery means. For example, the heating element may be a metal heating wire, a metal heating plate, or a ceramic heater, but is not limited thereto. In addition, the heating element may be composed of a conductive filament such as nichrome wire, and may be disposed in a structure wound around the liquid delivery means. The heating element may be heated by supplying current, and may transfer heat to the liquid composition in contact with the heating element to heat the liquid composition. As a result, aerosols may be generated.

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

2 is a view showing another example in which an aerosol-generating article 20000 is inserted into an externally heated aerosol-generating device 10000.

The aerosol-generating article 20000, battery 11000, processor 12000, heater 13000, and vaporizer 14000 of FIG. 2 are the aerosol-generating article 20000, battery 11000, and processor 12000 of FIG. , may correspond to the heater 13000 and the vaporizer 14000. Therefore, redundant descriptions are omitted.

2 shows an example in which a vaporizer 14000 and a heater 13000 are disposed in parallel. In other words, the vaporizer 14000 and the heater 13000 may be arranged in a line as shown in FIG. 1 or may be arranged in parallel as shown in FIG. 2 . However, the internal structure of the aerosol generating device 10000 is not limited to that shown in FIGS. 1 and 2 . In other words, according to the design of the aerosol generating device 10000, the arrangement of the battery 11000, the processor 12000, the heater 13000, and the vaporizer 14000 may be changed.

3 is a diagram schematically illustrating the structure of an aerosol-generating article 20000 according to one embodiment.

A first aspect of the present disclosure may provide an aerosol-generating article 20000, comprising a first part 21000, a second part 22000, a third part 23000, and a fourth part 24000. there is. At least one of the first part 21000, the second part 22000, the third part 23000, and the fourth part 24000 may include a filter material. Specifically, the first part 21000, the second part 22000, the third part 23000, and the fourth part 24000 may include a support element, a tobacco element, a cooling element, and a filter element, respectively. .

Referring to FIG. 3 , a first part 21000, a second part 22000, a third part 23000, and a fourth part 24000 are sequentially based on the longitudinal direction of the aerosol-generating article 20000. can be sorted Accordingly, the aerosol generated from the outside of the aerosol-generating article 20000 passes through the first part 21000, the second part 22000, the third part 23000, and the fourth part 24000 in order, and the airflow , and thus the smoker can inhale the aerosol from the fourth portion 24000.

In an embodiment, the first portion 21000 can extend from the end of the aerosol-generating article 20000 to about 5 to about 20 mm, and the second portion 22000 ends where the first portion 21000 ends. from about 5 to about 20 mm. However, it is not necessarily limited to this numerical range, and the lengths of each of the first part 21000 and the second part 22000 may be appropriately adjusted within a range easily changeable by a person skilled in the art.

The first portion 21000 may include a support element. The first portion 21000 may support the second portion 22000 or the entire aerosol-generating article 20000. In addition, when the aerosol-generating article 20000 is inserted into an aerosol-generating device (not shown), the first part 21000 may be inserted into the accommodation space of the aerosol-generating device, and the first part 21000 is the second part It may serve to support the second portion 22000 so that 22000 abuts the heating element, or to support the entire aerosol-generating article.

The first portion 21000 may include a filter material. For example, the first part 21000 may include a tow made of a cellulose acetate material, and the first part 21000 may include a tow made of a cellulose acetate material whose physical properties are modified by a plasticizer. may be For example, the first part 21000 may be a cylindrical rod or a tubular rod having a hollow inside. Also, the first part 21000 may be a human-shaped plug. However, the present disclosure is not necessarily limited to the foregoing, and the present disclosure may include various types of filter segments.

The second part 22000 may include tobacco elements. Tobacco components may have a granular form. For example, the tobacco elements may be a plurality of granules having a diameter of about 0.5 to about 1.5 mm. However, the present disclosure is not necessarily limited to the above, and the present disclosure may include all tobacco elements of various sizes and shapes.

Tobacco components may include tobacco substances and pH adjusting agents. Tobacco material can be, for example, tobacco leaf, tobacco stinger, puffed tobacco, cut cut filler, sheet leaf cut filler, reconstituted tobacco, tobacco extract, and combinations thereof.

A pH adjusting agent may be added to the tobacco material. Accordingly, the pH value of the tobacco components may have a value between about 7.0 and about 9.0. When the pH value of the tobacco material is within the above range, sufficient nicotine can be transferred even when the second portion is heated to a temperature of about 130° C. or lower, and the tobacco flavor can be improved. When the pH value is less than about 7.0 or greater than about 9.0, the flavor of tobacco is reduced and off-flavors such as ammonia become stronger, which can impair the feeling of smoking.

The pH adjusting agent is an alkali metal carbonate, an alkaline earth metal carbonate, an alkali metal hydrogen carbonate, an alkaline earth metal hydrogen carbonate, an alkali metal hydroxide, an alkaline earth metal hydroxide, an alkali metal phosphate, an alkaline earth metal phosphate, an alkali metal phosphate, an alkaline earth metal phosphate, an alkali metal phosphate. It may include one or more of anti-inflammatory and alkaline earth metal monohydrogen phosphate. Preferably, the pH adjusting agent may include one or more of sodium carbonate, potassium carbonate, calcium carbonate, sodium hydroxide, potassium hydroxide, calcium hydroxide, and calcium oxide. By adding a pH adjusting agent to the tobacco material, the amount of nicotine delivered can be increased and the tobacco flavor can be improved even when the second part 22000 is heated at a temperature of about 130° C. or less. However, the present disclosure is not necessarily limited to the above, and the present disclosure may include all types of pH adjusters other than the aforementioned pH adjusters.

Tobacco components may further include a binder and moisture. The binder can bind the tobacco material, the pH adjuster, and the moisture together so that they stick together. The binder can be, for example, hydroxy propyl cellulose (HPC) or hydroxy propyl methyl cellulose (HPMC). However, the present disclosure is not limited to the above examples, and the present disclosure may include all of various types of binders widely known in the art.

The tobacco component may further comprise an aerosol-generating substance. Here, the aerosol generating material may include, for example, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol. However, the present disclosure is not limited to the above examples, and the present disclosure may include all of various types of aerosol generating materials widely known in the art.

The third part 23000 may include a cooling element. The cooling element may cool airflow passing through the first part 21000 and the second part 22000 . The cooling element may be a paper tube having a cylindrical shape including a hollow and made of paper. In addition, the cooling element may be made of a polymer material or a biodegradable polymer material, and may have a cooling function. For example, the cooling element may be made of polylactic acid (PLA) fibers, but is not limited thereto. Also, the cooling element may be made of a cellulose acetate filter with a plurality of perforated holes. However, the cooling element is not limited to the above examples, and the present disclosure may include any material that performs a function of cooling the aerosol without limitation. Further, the cooling element may be a tube filter or branch tube comprising a hollow.

The fourth part 24000 may include a filter element. The filter element may be a cellulose acetate filter. The shape of the filter element is not limited. For example, the filter element may be a cylindrical rod or a tubular rod having a hollow therein. Also, the filter element may be a rod of recess type. If the filter element is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape.

The fourth portion 24000 may be manufactured to generate flavor. As an example, flavoring liquid may be sprayed onto the fourth part 24000, and a separate fiber coated with flavoring liquid may be inserted into the fourth part 24000.

The aerosol-generating article 20000 may include a wrapper 25000 surrounding at least a portion of the first part 21000 to the fourth part 24000 . In addition, the aerosol-generating article 20000 may include a wrapper 25000 surrounding all of the first portion 21000 to the fourth portion 24000. The wrapper 25000 may be positioned at the outermost part of the aerosol-generating article 20000, and the wrapper 25000 may be a single wrapper or may be a combination of a plurality of wrappers.

4 is a cross-sectional view of an aerosol-generating article 100 according to one embodiment.

Referring to FIG. 4 , the aerosol-generating article 100 may include a first portion 110 , a second portion 120 , a third portion 130 , and a fourth portion 140 . For the first part 110, the second part 120, the third part 130, and the fourth part 140, the above-described items in FIG. 3 may be equally applied.

In an embodiment, the first portion 110 may be a support element. The support element may include a first filter segment 111 and a first hollow 113 . When the aerosol-generating article 100 is inserted into an aerosol-generating device (not shown), the support element is inserted into the receiving space of the aerosol-generating device, but may not be heated.

In an embodiment, the third portion 130 may be a cooling element. The cooling element may include a third filter segment 131 and a third hollow 133 . The third part 130 may have a function of cooling the aerosol generated from the second part 120 .

In an embodiment, the fourth portion 140 may be a filter element. The filter element may include a fourth filter segment 141 . The filter element can function to filter aerosols and can also function as a mouthpiece. Although not shown in FIG. 6 , the filter element may include a filter segment and a hollow.

The filter element may be formed from tow or fiber strands of cellulose acetate material. For example, the fourth filter segment 141 may be formed of a fiber strand having a thickness of about 4 to about 20 denier per filament, and the fourth filter segment 141 may have a total denier of about 10,000 to about 200,000 It can be formed of fiber strands of. By adjusting the denier value described above, the filtration characteristics or resistance to drawing of the aerosol-generating article 20000 can be appropriately adjusted.

In the following, the second portion 120 of the aerosol-generating article 100 is described in more detail.

Referring to FIG. 4 , the second part 120 may include a cavity 121 and a tobacco element 123 . The cavity 121 may be an empty space inside the second portion 120 and may be a region that does not include the tobacco element 123 .

As a specific example, the tobacco element 123 may have a granular shape, and the tobacco element 123 may include a plurality of tobacco granules. Tobacco granules may have a diameter of about 0.5 to about 1.5 mm.

Additionally, the tobacco component 123 may comprise tobacco material. Tobacco component 123 may comprise about 2 to about 3 mg/mm of tobacco material by weight. As a specific example, the second part 120 may include beads or granular tobacco beads.

Additionally, the tobacco component 123 may include a pH adjusting agent. By including the pH adjuster in the tobacco component 123, even when the tobacco component 123 is heated to a temperature of about 130° C. or lower, a sufficient amount of nicotine can be transferred, and tobacco flavor can be improved.

In addition, the tobacco component 123 may further include a binder and moisture. Binders can further enhance the binding of tobacco material, pH modifier, and moisture.

5 illustrates a method and system for generating an aerosol using an aerosol-generating article 200 and device 10 according to one embodiment.

With respect to FIG. 5 , the above items may be equally applied. For example, the aerosol-generating article shown in FIG. 3 or FIG. 4 may be used in the method and system of FIG. 5 .

The aerosol-generating device 10 includes an accommodation space 12 accommodating an aerosol-generating article 200, a heating element 11 for heating the aerosol-generating article 200, and a battery that supplies power to the heating element 11 ( 13) may be included.

The heating element 11 can be arranged inside the aerosol-generating device 10 so as to surround the accommodation space 12 . When the aerosol-generating article 200 is inserted into the aerosol-generating device 10, the heating element 11 may be disposed inside the aerosol-generating device 10 so as to surround the second portion 220 of the aerosol-generating article 200. can Accordingly, the heating element 11 may heat at least a portion of the second portion 220 .

The aerosol generating device 10 may further include a processor (not shown). The processor may control the temperature at which the heating element 11 heats the aerosol-generating article 200 according to a pre-entered temperature profile. The processor may control the heating element 11 such that the heating element 11 heats at least a portion of the second portion 220 to a temperature of about 130° C. or less.

The first part 210 may not be covered by the heating element 11 in a state inserted into the receiving space 12 of the aerosol generating device 10 . The first part 210 may be an unheated part, and the first part 210 may function as a support element supporting the second part 220 .

The second part 220 may include a cavity 221 and a tobacco element 223 . Tobacco elements 223 may be, for example, tobacco granules or tobacco beads. Tobacco component 223 may contain tobacco substances, pH adjusters, binders, and moisture. Even when the second portion 220 is heated to a temperature of about 130° C. by the aerosol-generating device 10, the nicotine delivery amount of the aerosol-generating article 200 can be increased, and tobacco flavor can be improved. Even when at least one of the first part 210 and the third part 230 includes a cellulose acetate material, the cellulose acetate material may not be melted by heating.

Those skilled in the art related to the present embodiment will be able to understand that it may be implemented in a modified form within a range that does not deviate from the essential characteristics of the above description. Therefore, the disclosed methods are to be considered in an illustrative rather than a limiting sense. The scope of the invention is shown in the claims rather than the foregoing description, and all differences within the equivalent scope should be construed as being included in the invention.

10000: aerosol generating device 11000: battery
12000: processor 13000: heater
14000: vaporizer
20000 aerosol-generating article 21000 first part
22000: second part 23000: third part
24000 fourth part 25000 wrapper
100, 200: aerosol-generating article 110, 210: first part
120, 220: second part 130, 230: third part
140, 240: fourth part
111 first filter segment 113 first hollow
121: cavity 123: tobacco element
131: third filter segment 133: third hollow
141: fourth filter segment
10: aerosol generating device 11: heating element
12: accommodation space 13: battery

Claims (8)

aerosol-generating articles; and
An aerosol-generating device comprising an accommodation space for accommodating the aerosol-generating article, a heating element for heating the aerosol-generating article, and a battery for supplying power to the heating element;
The aerosol-generating article,
a first part comprising a support element, a second part comprising a tobacco element, a third part comprising a cooling element, and a fourth part comprising a filter element, wherein the first part, the second part; the third portion and the fourth portion are sequentially aligned along the longitudinal direction of the aerosol-generating article;
The tobacco component comprises a tobacco substance and a pH adjusting agent;
wherein the heating element is disposed to surround the second portion and not to surround the first portion, with the aerosol-generating article inserted into the accommodating space. According to claim 1,
The aerosol-generating system of claim 1, wherein the tobacco components are in the form of granules and the tobacco components have a pH value of 7.0 to 9.0. According to claim 1,
The aerosol-generating system of claim 1, wherein the tobacco element comprises a plurality of granules having a diameter of 0.5 to 1.5 mm. According to claim 1,
wherein the tobacco component further comprises a binder and moisture. According to claim 1,
The pH adjusting agent is an alkali metal carbonate, an alkaline earth metal carbonate, an alkali metal hydrogen carbonate, an alkaline earth metal hydrogen carbonate, an alkali metal hydroxide, an alkaline earth metal hydroxide, an alkali metal phosphate, an alkaline earth metal phosphate, an alkali metal phosphate, an alkaline earth metal phosphate, an alkali metal phosphate An aerosol-generating system comprising at least one of monohydrogen salt and alkaline earth metal phosphoric acid monohydrogen salt. According to claim 1,
The aerosol-generating system of claim 1, wherein the pH adjusting agent includes at least one of sodium carbonate, potassium carbonate, calcium carbonate, sodium hydroxide, potassium hydroxide, calcium hydroxide, and calcium oxide. According to claim 1,
The aerosol-generating system of claim 1 further comprising a first wrapper surrounding at least one of the first portion, the second portion, the third portion, and the fourth portion. According to claim 1,
wherein at least one of the first portion and the third portion comprises a hollow tube filter.

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