Aerosol-generating article and method of manufacturing the same

Abstract

The present disclosure provides an aerosol generating article including: an aerosol generating portion including an aerosol generating material configured to be vaporized into an aerosol; a tobacco filler portion including an inner wrapper having a plurality of wrinkle portions formed thereon and tobacco material particles attached to the plurality of wrinkle portions such that a tobacco component is added to the aerosol passing through the tobacco filler portion; and a heat conducting wrapper wrapping around at least a portion of an outer surface of the aerosol generating portion and the tobacco filler portion and configured to transfer heat to the aerosol generating material and the tobacco material. In addition, a manufacturing method of the aerosol generating article is disclosed.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to an aerosol generating article and a manufacturing method thereof. BACKGROUND

[0002] Recently, there is an increasing demand for alternative methods to overcome the disadvantages of conventional cigarettes. For example, there is an increasing demand for aerosol generating devices that generate aerosols by heating an aerosol generating material in a cigarette rather than burning the cigarette.

[0003] Some aerosol generating articles have a configuration for generating aerosols by heating a medium and a material added to the medium. For example, aerosols are generated when reconstituted tobacco or pipe tobacco is heated. In the case of a medium formed of reconstituted tobacco or pipe tobacco, the draw resistance tends to increase as the aerosol is generated and flows.

[0004] In addition, when a tobacco material is provided in a granular form, the tobacco material can be discharged to the outside of the aerosol generating article. SUMMARY

[0005] TECHNICAL PROBLEM

[0006] Some aerosol generating articles have a configuration for generating aerosols by heating a medium and a material added to the medium. For example, aerosols are generated when reconstituted tobacco or pipe tobacco is heated. In the case of a medium formed of reconstituted tobacco or pipe tobacco, the draw resistance tends to increase as the aerosol is generated and flows.

[0007] In addition, when a tobacco material is provided in a granular form, the tobacco material can be discharged to the outside of the aerosol generating article.

[0008] The technical problem of the present disclosure is not limited to the above description, and other technical problems can also be derived from the embodiments to be described below.

[0009] TECHNICAL SOLUTION TO THE PROBLEM

[0010] The present disclosure provides an aerosol generating article including a tobacco filler portion in which a pleat portion is formed on an inner wrapper, and a granular tobacco material is attached to the pleat portion to solve the above-described problems.

[0011] In addition, the present disclosure also provides a manufacturing method of an aerosol generating article by which a granular tobacco material can be stably attached to the aerosol generating article through physical or chemical treatment.

[0012] According to an aspect of the disclosure, an aerosol generating article includes an aerosol generating portion including an aerosol generating material configured to be vaporized into an aerosol, a tobacco filler portion including an inner wrapper having a plurality of pleats formed thereon and tobacco material particles arranged in the plurality of pleats such that a tobacco component is added to the aerosol passing through the tobacco filler portion, and a heat conductive wrapper wrapping at least a portion of an outer surface of the aerosol generating portion and the tobacco filler portion and configured to transfer heat to the aerosol generating material and the tobacco material.

[0013] In addition, according to an aspect of the disclosure, a manufacturing method of an aerosol generating article includes at least one of physically and chemically treating an inner wrapper to improve adhesion of a surface of the inner wrapper, placing tobacco material particles on a surface of the inner wrapper by way of free fall such that the particles are attached to the surface of the inner wrapper by adhesion, preparing a tobacco filler portion by rolling and cutting the inner wrapper, connecting an aerosol generating portion to the tobacco filler portion, and wrapping an outer surface of the tobacco filler portion and the aerosol generating portion with a heat conductive wrapper.

[0014] Technical problems of the disclosure are not limited to the above description, and other technical problems can be derived from the embodiments to be described below.

[0015] Advantages of the disclosure

[0016] According to the disclosure, since the tobacco material is provided in the form of particles, the tobacco material can have a high tobacco component transfer rate and smoking continuity, and can provide a rich amount of atomization. Also, the tobacco material can be well transferred at a relatively low temperature.

[0017] In addition, the particles of the tobacco material can be stably attached to the inner wrapper through the plurality of pleats formed on the inner wrapper and / or through an adhesive applied on the inner wrapper including a non-tobacco material.

[0018] In addition, the thickness of the heat conductive wrapper can be set within an appropriate range according to the particle diameter, and the transfer rate of the tobacco component and the smoking continuity can be improved.

[0019] However, the effects of the disclosure are not limited to the above, and can include all effects that can be inferred from the configurations described below. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 An example in which a cigarette is inserted into an aerosol generating device is illustrated.

[0021] Figure 2 An example in which a cigarette is inserted into an aerosol generating device is illustrated.

[0022] Figure 3 An example of a cigarette is illustrated.

[0023] Figure 4 An example of an aerosol generating device using an induction heating method is illustrated.

[0024] Figure 5 is a cross-sectional view of an aerosol generating article according to an embodiment.

[0025] Figure 6 is Figure 5 is an expanded view of an inner wrapper of a tobacco filler portion of

[0026] Figure 7 and Figure 8 is Figure 5 is an example of a cross-sectional view of a tobacco filler portion of

[0027] Figure 9 is illustrated. Figure 5 is illustrated.

[0028] Figure 10 is illustrated. Figure 5

[0029] Figure 11 is a flowchart of a manufacturing method of an aerosol generating article according to an embodiment. DETAILED DESCRIPTION

[0030] Best mode for carrying out the invention

[0031] According to an aspect of the disclosure, an aerosol generating article includes: an aerosol generating portion including an aerosol generating material configured to be vaporized into an aerosol; a tobacco filler portion including an inner wrapper having a plurality of pleat portions formed thereon and tobacco material particles arranged in the plurality of pleat portions such that a tobacco component is added to the aerosol passing through the tobacco filler portion; and a heat conductive wrapper wound around at least a portion of an outer surface of the aerosol generating portion and the tobacco filler portion, and configured to transfer heat to the aerosol generating material and the tobacco material.

[0032] The diameter of the particles can be about 0.1 mm to about 1.0 mm.

[0033] The diameter of the particles is about 0.1 mm to about 0.4 mm, and the thickness of the heat conductive wrapper can be about 0.6 µm to about 12 µm. ​

[0034] The diameter of the particle can be about 0.5 mm to about 1.0 mm, and the thickness of the heat-conducting wrapper can be about 12 μm to about 20 μm.

[0035] The adhesive can be applied to a surface of the inner wrapper, and the tobacco material can be attached to the adhesive. The adhesive can include glycerin.

[0036] The plurality of corrugated portions can be formed to extend in a length direction of the aerosol generating article to form the air passage.

[0037] The roughness of the inner wrapper can be increased by surface modification such that the particles are attached to the surface of the inner wrapper by adhesion due to the increased roughness.

[0038] The plurality of corrugated portions of the inner wrapper can have a plurality of protrusions formed in a wave shape, and the particles are attached between adjacent protrusions.

[0039] The material of the inner wrapper can be made of a non-tobacco material.

[0040] A width of each of the plurality of corrugated portions of the inner wrapper can be about 1.4 times to about 1.6 times a diameter of each particle.

[0041] The aerosol generating article can further include a cooler including at least one perforation configured to introduce external air, thereby cooling the aerosol passing through the cooler by the external air, and a filter unit configured to filter the aerosol.

[0042] According to another aspect of the disclosure, a manufacturing method of an aerosol generating article includes performing at least one of a physical treatment and a chemical treatment on an inner wrapper to improve adhesion of a surface of the inner wrapper, placing tobacco material particles on the surface of the inner wrapper by free fall such that the particles are attached to the surface of the inner wrapper by adhesion, preparing a tobacco filler portion by rolling and cutting the inner wrapper, connecting an aerosol generating portion to the tobacco filler portion, and wrapping outer surfaces of the tobacco filler portion and the aerosol generating portion with a heat-conducting wrapper.

[0043] The physical treatment can include forming a plurality of corrugated portions on the surface of the inner wrapper with a profiling roller, the plurality of corrugated portions having a plurality of protrusions formed thereon.

[0044] The chemical treatment can include applying an adhesive to the surface of the inner wrapper. DETAILED DESCRIPTION

[0046] With respect to the terms used in describing various embodiments, common terms that are currently used in the field of the present disclosure are selected based on the functions of structural elements in the various embodiments of the present disclosure. However, the meanings of the terms can change according to intentions, judicial precedents, appearances of new technologies, and the like. In addition, in some cases, terms that are not commonly used can be selected. In such a case, the meanings of the terms will be described in detail at the corresponding portions in the description of the present disclosure. Therefore, the terms used in the various embodiments of the present disclosure should be defined based on the meanings of the terms and the descriptions provided herein.

[0047] In addition, unless explicitly described to the contrary, the word "comprise" and variations such as "comprises" or "comprising" will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. In addition, the terms "-er", "-or", and "module" described in the specification mean units for processing at least one function and operation and can be implemented by hardware components or software components and combinations thereof.

[0048] As used herein, expressions such as "at least one of... " when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list. For example, the expression "at least one of a, b, and c" should be understood as 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.

[0049] The term "aerosol-generating article" can refer to any product designed to be smoked by a person by drawing on the aerosol-generating article. The aerosol-generating article can include an aerosol-generating material that generates an aerosol when heated even without combustion. For example, one or more aerosol-generating articles can be loaded in an aerosol-generating device and generate an aerosol when heated by the aerosol-generating device. The shape, size, material, and structure of the aerosol-generating article can vary depending on the embodiment. Examples of the aerosol-generating article can include, but are not limited to, a cigarette substrate and a cartridge. Hereinafter, the term "cigarette" (i.e., when used alone without a modifier such as "general", "conventional", or "combustible") can refer to an aerosol-generating article having a shape and size similar to those of a conventional combustible cigarette.

[0050] Hereinafter, the present disclosure will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are shown, such that one of ordinary skill in the art can easily practice the present disclosure. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein.

[0051] Hereinafter, embodiments of the disclosure will be described in detail with reference to the accompanying drawings.

[0052] Figure 1 and Figure 2 is a view showing an example in which a cigarette is inserted into an aerosol-generating device.

[0053] Referring to Figure 1 and Figure 2 , the aerosol-generating device 20 can include a battery 21, a controller 22, a heater 23, and a vaporizer 24. In addition, the cigarette 10 can be inserted into an inner space of the aerosol-generating device 20.

[0054] Figure 1 and Figure 2 illustrates components of the aerosol-generating device 20 related to the present embodiment. Accordingly, those of ordinary skill in the art related to the present embodiment will understand that, in addition to the components illustrated in Figure 1 and Figure 2 , other general components can be included in the aerosol-generating device 20.

[0055] In addition, Figure 1 and Figure 2 illustrates that the aerosol-generating device 20 includes the heater 23. However, the heater 23 can be omitted as necessary.

[0056] Figure 1 illustrates that the battery 21, the controller 22, the vaporizer 24, and the heater 23 are arranged in series. In addition, Figure 2 illustrates that the vaporizer 24 and the heater 23 are arranged in parallel. However, the internal structure of the aerosol-generating device 20 is not limited to the structure illustrated in Figure 1 and Figure 2 . In other words, the battery 21, the controller 22, the heater 23, and the vaporizer 24 can be arranged in different ways according to the design of the aerosol-generating device 20.

[0057] When the cigarette 10 is inserted into the aerosol-generating device 20, the aerosol-generating device 20 can operate the heater 23 and / or the vaporizer 24 to generate an aerosol from the cigarette 10 and / or the vaporizer 24. The aerosol generated by the heater 23 and / or the vaporizer 24 is delivered to a user by passing through the cigarette 10.

[0058] If necessary, the aerosol-generating device 20 can heat the heater 23 even when the cigarette 10 is not inserted into the aerosol-generating device 20.

[0059] The battery 21 can supply power for operating the aerosol generating device 20. For example, the battery 21 can supply power to heat the heater 23 or the vaporizer 24, and the battery 21 can supply power for operating the controller 22. In addition, the battery 21 can also supply power for operating a display, a sensor, a motor, etc. installed in the aerosol generating device 20.

[0060] The controller 22 can generally control the operation of the aerosol generating device 20. In detail, the controller 22 can control not only the operation of the battery 21, the heater 23, and the vaporizer 24, but also the operation of other components included in the aerosol generating device 20. In addition, the controller 22 can check the state of each component of the aerosol generating device 20 to determine whether the aerosol generating device 20 can operate.

[0061] The controller 22 can include at least one processor. The processor can be implemented as an array of a plurality of logic gates, or can be implemented as a combination of a general-purpose microprocessor and a memory in which a program executable in the microprocessor is stored. It will be understood by those of ordinary skill in the art that the processor can be implemented in other forms of hardware.

[0062] The heater 23 can be heated by power supplied from the battery 21. For example, when a cigarette is inserted into the aerosol generating device 20, the heater 23 can be located outside the cigarette. Accordingly, the heated heater 23 can increase the temperature of the aerosol generating material in the cigarette.

[0063] The heater 23 can include an electric resistance heater. For example, the heater 23 can include an electrically conductive trace, and when an electric current flows through the electrically conductive trace, the heater 23 can be heated. However, the heater 23 is not limited to the above-described example, and can include all heaters capable of being heated to a desired temperature. Here, the desired temperature can be pre-set in the aerosol generating device 20, or can be set to a temperature desired by a user.

[0064] As another example, the heater 23 can include an inductive heater. In detail, the heater 23 can include an electrically conductive coil for heating a cigarette in an inductive heating method, and the cigarette can include a susceptor capable of being heated by the inductive heater.

[0065] For example, the heater 23 can include a tube-type heating element, a plate-type heating element, a needle-type heating element, or a rod-type heating element, and can heat the inside or outside of the cigarette 10 according to the shape of the heating element.

[0066] In addition, the aerosol-generating device 20 can include a plurality of heaters 23. Here, the plurality of heaters 23 can be inserted into the cigarette 10, or can be disposed outside the cigarette 10. In addition, some of the plurality of heaters 23 can be inserted into the cigarette 10, and the other heaters of the plurality of heaters 23 can be disposed outside the cigarette 10. Further, the shape of the heater 23 is not limited to the shape exemplified in Figure 1 and Figure 2 Further, the shape of the heater 23 is not limited to the shape exemplified in

[0067] The vaporizer 24 can generate an aerosol by heating the liquid composition, and the generated aerosol can be delivered to the user through the cigarette 10. In other words, the aerosol generated via the vaporizer 24 can move along an airflow passage of the aerosol-generating device 20, and the airflow passage can be configured so that the aerosol generated via the vaporizer 24 is delivered to the user through the cigarette.

[0068] For example, the vaporizer 24 can include a liquid storage, a liquid delivery element, and a heating element, but is not limited thereto. For example, the liquid storage, the liquid delivery element, and the heating element can be included in the aerosol-generating device 20 as independent modules.

[0069] The liquid storage can store the liquid composition. For example, the liquid composition can be a liquid including a tobacco-containing material having a volatile tobacco flavor component, or a liquid including a non-tobacco material. The liquid storage can be formed to be separable from the vaporizer 24, or can be integrally formed with the vaporizer 24.

[0070] For example, the liquid composition can include water, a solvent, ethanol, a plant extract, a flavoring, a flavoring agent, or a vitamin mixture. The flavoring can include menthol, peppermint, spearmint oil, and ingredients of various fruit flavors, but is not limited thereto. The flavoring agent can include ingredients capable of providing various flavors or tastes to the user. The vitamin mixture can 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 can include an aerosol-forming substance such as glycerol and propylene glycol.

[0071] The liquid delivery element can deliver the liquid composition of the liquid storage to the heating element. For example, the liquid delivery element can be a wick such as a cotton fiber, a ceramic fiber, a glass fiber, or a porous ceramic, but is not limited thereto.

[0072] The heating element is an element for heating a liquid composition delivered by the liquid delivery element. For example, the heating element can be a metal heating wire, a metal hot plate, a ceramic heater, etc., but is not limited thereto. Also, the heating element can include an electrically conductive wire, such as a nichrome wire, and can be positioned to be wound around the liquid delivery element. The heating element can be heated by a current supply, and can transfer heat to the liquid composition in contact with the heating element, thereby heating the liquid composition. Accordingly, an aerosol can be generated.

[0073] For example, the vaporizer 24 can be referred to as a cartomizer or an atomizer, but is not limited thereto.

[0074] In addition to the battery 21, the controller 22, the heater 23, and the vaporizer 24, the aerosol generating device 20 can include general components. For example, the aerosol generating device 20 can include a display capable of outputting visual information and / or a motor for outputting tactile information. In addition, the aerosol generating device 20 can include at least one sensor (for example, a puff detection sensor, a temperature detection sensor, a cigarette insertion detection sensor, etc.). In addition, the aerosol generating device 20 can be formed in a structure that can introduce external air or discharge internal air even when the cigarette 10 is inserted into the aerosol generating device 20.

[0075] Although not illustrated in Figure 1 and Figure 2 , the aerosol generating device 20 and the additional cradle can form a system together. For example, the cradle can be used to charge the battery 21 of the aerosol generating device 20. Alternatively, when the cradle and the aerosol generating device 20 are coupled to each other, the heater 23 can be heated.

[0076] Hereinafter, an example of the cigarette 10 will be described with reference to Figure 3 .

[0077] Figure 3 An example of a cigarette is illustrated.

[0078] The cigarette 10 can be similar in shape and structure to a general combustion-type cigarette. For example, the cigarette 10 can be divided into a first portion including an aerosol generating material and a second portion including a filter or the like. Alternatively, the second portion of the cigarette 10 can also include an aerosol generating material. For example, an aerosol generating material made in the form of a granule or a capsule can be inserted into the second portion.

[0079] The entire first portion can be inserted into the aerosol-generating device 20, and the second portion can be exposed to the outside. Alternatively, only a portion of the first portion can be inserted into the aerosol-generating device 20, or the entire first portion and a portion of the second portion can be inserted into the aerosol-generating device 20. The user can take a puff of the aerosol while holding the second portion with the user's mouth. In this case, the aerosol is generated from the outside air passing through the first portion, and the generated aerosol passes through the second portion and is delivered to the user's mouth.

[0080] For example, the outside air can flow into at least one air passage formed in the aerosol-generating device 20. For example, the user can adjust the opening and closing of the air passage and / or the size of the air passage formed in the aerosol-generating device 20. Accordingly, the number and quality of puffs can be adjusted by the user. As another example, the outside air can flow into the cigarette 10 through at least one hole formed in the surface of the cigarette 10.

[0081] Referring to Figure 3 The cigarette 10 can include a tobacco rod 11 and a filter rod 12. The above-described first portion can include the tobacco rod 11, and the second portion can include the filter rod 12.

[0082] Figure 3 It is exemplified that the filter rod 12 includes a single segment. However, the filter rod 12 is not limited thereto. In other words, the filter rod 12 can include a plurality of segments. For example, the filter rod 12 can include a first segment configured to cool the aerosol and a second segment configured to filter a specific component contained in the aerosol. In addition, the filter rod 12 can further include at least one segment configured to perform other functions, as needed.

[0083] The cigarette 10 can be packaged using at least one wrapper 14. The wrapper 14 can have at least one hole through which the outside air can be introduced or through which the inside air can be discharged. For example, the cigarette 10 can be packaged by one wrapper 14. As another example, the cigarette 10 can be double-packaged by two or more wrappers 14. For example, the tobacco rod 11 can be packaged by a first wrapper, and the filter rod 12 can be packaged by a second wrapper. In addition, the tobacco rod 11 and the filter rod 12, which are respectively packaged by separate wrappers, can be coupled to each other, and the entire cigarette 10 can be packaged by a third wrapper. When each of the tobacco rod 11 or the filter rod 12 includes a plurality of segments, each segment can be packaged by a separate wrapper. In addition, the entire cigarette 10 including a plurality of segments, which are respectively packaged by separate wrappers and coupled to each other, can be repackaged by another wrapper.

[0084] The tobacco rod 11 can include an aerosol generating material. For example, the aerosol generating material can include at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but is not limited thereto. In addition, the tobacco rod 11 can include other additives such as a flavoring agent, a wetting agent, and / or an organic acid. In addition, the tobacco rod 11 can further include a flavoring liquid such as menthol or a humectant injected into the tobacco rod 11.

[0085] The tobacco rod 11 can be manufactured in various forms. For example, the tobacco rod 11 can be formed as a sheet or a filament. In addition, the tobacco rod 11 can be formed as a pipe tobacco filament formed of tiny pieces cut from a tobacco sheet. In addition, the tobacco rod 11 can be surrounded by a heat-conductive material. For example, the heat-conductive material can be, but is not limited to, a metal foil such as an aluminum foil. For example, the heat-conductive material surrounding the tobacco rod 11 can uniformly distribute heat transferred to the tobacco rod 11, and thus can increase the conductivity of heat applied to the tobacco rod and can improve the taste of tobacco. In addition, the heat-conductive material surrounding the tobacco rod 11 can function as a susceptor heated by an inductive heater. Here, although not illustrated in the drawings, the tobacco rod 11 can further include an additional susceptor in addition to the heat-conductive material surrounding the tobacco rod 11.

[0086] The filter rod 12 can include a cellulose acetate filter. The shape of the filter rod 12 is not limited. For example, the filter rod 12 can include a columnar rod or a tubular rod having a hollow interior. In addition, the filter rod 12 can further include a recessed rod. When the filter rod 12 includes a plurality of segments, at least one of the plurality of segments can have a different shape.

[0087] In addition, the filter rod 12 can include at least one capsule 13. Here, the capsule 13 can generate a flavor or an aerosol. For example, the capsule 13 can have a configuration in which a liquid containing a flavoring substance is wrapped with a film. For example, the capsule 13 can have a spherical or cylindrical shape, but is not limited thereto.

[0088] Meanwhile, although not illustrated in Figure 3 , the cigarette 10 according to the embodiments can further include a front end filter. The tobacco rod 11 can face the filter rod 12 on one side and face the front end filter on the other side. The front end filter can prevent the tobacco rod 11 from being detached and can prevent an aerosol liquefied during smoking from flowing from the tobacco rod 11 to the aerosol generating device (20) of Figure 1 and Figure 2 .

[0089] Figure 4 An example of an aerosol generating device using an inductive heating method is illustrated.

[0090] Referring to Figure 4The aerosol-generating device 20 can include a battery 21, a processor 25, a coil 27, and a susceptor 26. In addition, at least a portion of the aerosol-generating article 10 can be accommodated in a hollow 28 of the aerosol-generating device 20. Figure 4 The aerosol-generating article 10, the battery 21, and the processor 25 can correspond to a cigarette 10, a battery 21, and a processor 25, respectively, of Figure 1 to Figure 3 In addition, the coil 27 and the susceptor 26 can correspond to a heater 23. Accordingly, a description thereof will not be repeated.

[0091] Figure 4 It is exemplified that the aerosol-generating device 20 includes components related to the present embodiment. Accordingly, those of ordinary skill in the art will understand that other general components can be included in the aerosol-generating device 20 in addition to the components shown. Figure 4

[0092] The coil 27 can be adjacent to the hollow 28. Figure 4 It is exemplified that the coil 27 encircles the hollow 28, but one or more embodiments are not limited thereto.

[0093] When the aerosol-generating article 10 is accommodated in the hollow 28 of the aerosol-generating device 20, the aerosol-generating device 20 can supply power to the coil 27 to cause the coil 27 to generate a magnetic field. When the magnetic field generated by the coil 27 penetrates the susceptor 26, the susceptor 26 can be heated.

[0094] Such induction heating is a known phenomenon explained according to Faraday's law of induction. In detail, when a magnetic induction in the susceptor 26 changes, an electric field is generated in the susceptor 26, and accordingly, eddy currents can flow in the susceptor. The eddy currents generate heat in the susceptor 26 in proportion to the current density and resistance of the conductor.

[0095] Since the susceptor 26 is heated according to the eddy currents, and the aerosol-generating substance in the aerosol-generating article 10 is heated by the heated susceptor 26, an aerosol can be generated. The aerosol generated from the aerosol-generating substance can be delivered to a user by passing through the aerosol-generating article 10.

[0096] The battery 21 can supply power to cause the coil 27 to generate a magnetic field. The processor 25 can be electrically connected to the coil 27.

[0097] The coil 27 can be an electrically conductive coil for generating a magnetic field by power supplied by the battery 21. The coil 27 can encircle at least a portion of the hollow 28. The magnetic field generated by the coil 27 can be applied to the susceptor 26 disposed on an inner end portion of the hollow 28.

[0098] ​The susceptor 26 can be heated as a magnetic field generated from the coil 27 penetrates, and the susceptor 26 can include a metal or carbon. For example, the susceptor 26 can include at least one of ferrite, ferromagnetic alloy, stainless steel, and aluminum.

[0099] In addition, the susceptor 26 can include at least one of ceramic such as graphite, molybdenum, silicon carbide, niobium, nickel alloy, a metal film, or zirconia; a transition metal such as nickel (Ni) or cobalt (Co); and a metalloid such as boron (B) or phosphorus (P). However, the susceptor 26 is not limited to the above-described examples, and can include all susceptor capable of being heated to a desired temperature. Here, the desired temperature can be pre-set in the aerosol generating device 20, or can be set to a temperature desired by a user.

[0100] When the aerosol generating article 10 is accommodated in the hollow 28 of the aerosol generating device 20, the susceptor 26 can surround at least a portion of the aerosol generating article 10. Accordingly, the heated susceptor 26 can increase the temperature of the aerosol generating material in the aerosol generating article 10.

[0101] Figure 4 The susceptor 26 is exemplified as surrounding at least a portion of the aerosol generating article 10, but one or more embodiments are not limited thereto. For example, the susceptor 26 can include a tube-type heating element, a plate-type heating element, a needle-type heating element, or a rod-type heating element, and can heat the inside or outside of the aerosol generating article 10 according to the shape of the heating element.

[0102] In addition, the aerosol generating device 20 can include a plurality of susceptor 26. In this case, the plurality of susceptor 26 can be inserted into the aerosol generating article 10, or can be disposed outside the aerosol generating article 10. In addition, some of the plurality of susceptor 26 can be inserted into the aerosol generating article 10, and other susceptor 26 of the plurality of susceptor 26 can be disposed outside the aerosol generating article 10. In addition, the shape of the susceptor 26 is not limited to the shape exemplified in Figure 4 The shape exemplified in FIG. 10 can include various shapes.

[0103] Figure 5 is a cross-sectional view of an aerosol generating article 10 according to an embodiment. Figure 5 The aerosol generating article 10 of FIG. 10 can correspond to Figure 1 to Figure 3 a cigarette. Accordingly, the description regarding the cigarette 10 will not be repeated.

[0104] Referring to Figure 5 , the aerosol generating article 10 can include a plurality of different segments such as an aerosol generating portion 100, a tobacco filler portion 200, and a heat conduction wrapper 300.

[0105] The aerosol-generating portion 100 can be an aerosol-generating substance segment. That is, the aerosol-generating portion 100 can include an aerosol-generating substance capable of being vaporized into an aerosol. For example, the aerosol-generating portion 100 can include propylene glycol or a mixture of glycerin and propylene glycol.

[0106] The tobacco filling portion 200 can be a tobacco filling segment. That is, the tobacco filling portion 300 can be configured to add a tobacco component to the generated aerosol. The tobacco filling portion 200 can include an inner wrapper 220 and a tobacco material 210 made in the form of a granule (see Figure 6 ). The tobacco material 210 can be attached to the surface of the inner wrapper 220 in the form of a granule, and the inner wrapper 220 can be rolled as the granule is attached to the surface.

[0107] The surface of the inner wrapper 220 can include a plurality of crimped portions 221 formed by crimping (see Figure 7 ). The tobacco material 210 in the form of a granule can be attached between adjacent protrusions formed by the plurality of crimped portions 221. The inner wrapper 220 can include a non-tobacco material that does not include a tobacco component. For example, the inner wrapper 220 can include paper.

[0108] The tobacco material 210 can be manufactured in the form of regular granules or irregular granules. When the tobacco material 210 is manufactured in the form of irregular granules, the diameter 211 of each tobacco material 210 can be non-uniform, and the tobacco material 210 can have two or more diameters.

[0109] Compared to reconstituted tobacco or pipe tobacco, the tobacco material 210 in the form of a granule can be less expensive and less aerosol is removed, thereby achieving sufficient atomization. Compared to general reconstituted tobacco or pipe tobacco, the granule has a greater amount of the tobacco material 210 for the same weight or the same volume.

[0110] In addition, the tobacco material 210 in the form of a granule has a greater specific surface area, and thus can provide sufficient tobacco components even at a low temperature. Accordingly, since the transfer rate of the tobacco components is excellent even at a low temperature, the tobacco components can be sufficiently provided to the aerosol. A general aerosol-generating article 10 requires a heating temperature of about 300℃ or more, but the tobacco material 210 in the form of a granule can sufficiently provide the tobacco components at a heating temperature of about 250℃ or more. Accordingly, when the aerosol-generating article 10 is used with the aerosol-generating device 20 including the heater 23, the heater 23 can be heated at a relatively low temperature, and thus power of the battery 21 can be saved.

[0111] When the aerosol-generating portion 100 and the tobacco-filled portion 200 are connected to each other, the aerosol-generating portion 100 and the tobacco-filled portion 200 can be wrapped by the outer wrapper 14. As shown in Figure 5 The aerosol-generating portion 100 can be connected to the front end portion of the tobacco-filled portion 200, but is not limited thereto. The aerosol generated by the aerosol-generating portion 100 can be introduced into the tobacco-filled portion 200, and while passing through the tobacco-filled portion 200, the aerosol can absorb tobacco components from the tobacco material 210 in the form of granules to deliver the tobacco components to a user.

[0112] The tobacco material 210 in the form of granules can be physically attached to the creased portion 221 formed on the inner wrapper 220. Since the granules are firmly seated in the curved portions formed by the creased portion 221, i.e., between the protrusions, the tobacco material 221 can be prevented from being separated from the inner wrapper 220 even in the case of shaking the aerosol-generating article 10 or applying an external impact to the aerosol-generating article 10.

[0113] The heat-conducting wrapper 300 can include a heat-conducting material and transfer heat. The heat-conducting wrapper 300 can wrap around at least a portion of the outer circumferential surface of the aerosol-generating portion 100 and the tobacco-filled portion 200, and thus can transfer heat to the aerosol-generating material in the aerosol-generating portion 100 and the tobacco material 210 in the tobacco-filled portion 200. The heat-conducting material can include a metal such as, for example, aluminum. In addition, the heat-conducting material can further include a material having high heat conductivity, such as a polymer composite. By adjusting the content of the heat-conducting material in the heat-conducting wrapper 300, the heat conductivity of the heat-conducting wrapper 300 can be adjusted, and thus the transfer rate of the tobacco components can be ultimately adjusted. The aerosol-generating portion 100 and the tobacco-filled portion 200 can be wrapped by the heat-conducting wrapper 300, and can be inserted into the induction heating-type aerosol-generating device 20 of Figure 4 .

[0114] In addition, the aerosol-generating article 10 can further include a cooler 400 and a filter unit 500.

[0115] The cooler 400 can be a cooling section for cooling the aerosol. A hollow portion can be formed in the cooler 300, and the aerosol can flow through the hollow portion. In addition, the cooler 400 can include at least one perforation 410 (see Figure 9The outside air is introduced through the perforations. The outside air can be introduced to the cooler 400 through the perforations 410, and thus, the aerosol can be cooled. The cooler 400 can include paper or cellulose acetate tube filter, and can include biodegradable polymer material. For example, the cooler 400 can include only pure polylactic acid (PLA), but the material forming the cooler 400 is not limited thereto.

[0116] In addition, the PLA can be inserted into the cooler 400 as a separate segment or thread. In this case, the aerosol can be less diluted by air, and thus, a sufficient atomization amount can be generated. In addition, the cooling effect can increase.

[0117] The filter unit 500 can include a filter through which the aerosol flows and is filtered. The filter can be a cellulose acetate filter having a plurality of holes. Further, the filter can further include a flavor material 510 that adds a flavor to the aerosol. For example, a flavor liquid can be sprayed to the filter unit 500, or a separate fiber piece coated with the flavor material 510 can be inserted into the filter unit 500. In addition, the flavor material 510 can be directly spread on the filter unit 500.

[0118] The aerosol-generating article 10 according to an embodiment can include the aerosol-generating portion 100, the tobacco filler portion 200, the cooler 400, and the filter unit 500 arranged in the order. The aerosol can be generated by vaporization of the aerosol-generating material in the aerosol-generating portion 100, and the generated aerosol can flow to the tobacco filler portion 200. When the aerosol passes through the tobacco filler portion 200, the tobacco component can be added to the aerosol by the tobacco material 210. After the tobacco component is added, when the aerosol flows in the cooler 400, the temperature of the aerosol can decrease. After passing through the filter unit 500, the aerosol can be discharged to the outside. The user can inhale the aerosol that has passed through the filter unit 500. However, these processes are not limited to the above-described order, and can be performed in any suitable order. In addition, either one of the filter unit 500 and the cooler 400 can be omitted, and a plurality of identical segments can be connected.

[0119] Figure 6 is Figure 5 an expanded view of the inner wrapper 220 of the tobacco filler portion 200.

[0120] Referring to Figure 6 The tobacco material 210 in a granular form can be attached between the pleat portions 221 of the inner wrapper 220. The pleat portions 221 formed on the inner wrapper 220 can have various patterns that attach the tobacco material 210 in a granular form to the inner wrapper 220. The pleat portions 221 can be formed in parallel or perpendicular to the direction in which the aerosol flows, or can be formed in a spiral shape.

[0121] As the aerosol passes through the tobacco filler portion 200, the aerosol can flow between the pleats 221. That is, as the aerosol generated by the aerosol generating material passes through the tobacco filler portion 200, the pleats 221 can form an air passage on the inner wrapper 220, and thus the aerosol can flow through the air passage. In this case, the pleats 221 can be formed to extend in the length direction of the aerosol generating article 10, that is, the direction in which the aerosol generating article 10 extends. In the case of the tobacco material formed of reconstituted tobacco sheets or cut filler, the tobacco material can hinder the flow of the aerosol, and thus the draw resistance can increase. However, according to the disclosure, the pleats 221 can serve as an air passage, and thus, the aerosol can flow more smoothly compared to the tobacco material formed of reconstituted tobacco sheets or cut filler.

[0122] In the case of the tobacco material 210 in the form of particles, the diameter 211 of the particles can be related to smoking continuity and transfer rate of tobacco components.

[0123] Smoking continuity indicates the ability to provide a uniform amount of tobacco components from the beginning to the end of using the aerosol generating article 10. Thus, lower smoking continuity indicates that the tobacco components are initially sufficiently provided by the aerosol generating article 10, but as smoking proceeds, the amount of tobacco components can decrease.

[0124] Transfer rate of tobacco components indicates the content of tobacco components in the aerosol provided by one puff of a user. When the transfer rate of tobacco components is low, the amount of tobacco components included in the aerosol is low during one puff of a user, and thus, the feeling of smoking can not satisfy the user.

[0125] In terms of smoking continuity, as the diameter 211 of the particles of the tobacco material 210 increases, the amount of the tobacco material 210 filled in the tobacco filler portion 200 increases, so that the smoking continuity can increase. In contrast, in terms of the transfer rate of tobacco components, as the diameter 211 of the particles decreases, the packing density of the particles in the tobacco filler portion 200 increases, so that the transfer rate of tobacco components can increase. Thus, when the diameter 211 of the particles is too large, the transfer rate of tobacco components can be insufficient, and when the diameter 211 is too small, the smoking continuity can be insufficient. Preferably, the diameter 211 of the particles is designed to have appropriate smoking continuity and appropriate transfer rate of tobacco components. To this end, the diameter 211 of the particles can range from about 0.1 mm to about 1.0 mm.

[0126] As the thickness of the heat-conducting wrapper 300 increases, the amount of heat-conducting material in the heat-conducting wrapper 300 also increases, and thus heat transferred to the tobacco filler portion 200 can increase. Accordingly, as the thickness of the heat-conducting wrapper 300 increases, the continuity of smoking can increase. However, as the thickness of the heat-conducting wrapper 300 increases, it becomes more difficult to roll the heat-conducting wrapper 300 into a circular shape, thereby making the manufacture of the heat-conducting wrapper 300 difficult. Accordingly, the heat-conducting wrapper 300 needs to have a certain size to sufficiently transfer tobacco components and to be easily manufactured. Preferably, the thickness of the heat-conducting wrapper 300 can be less than or equal to about 20 μm.

[0127] The diameter 211 of the granule can be associated with the thickness of the heat-conducting wrapper 300. The diameter 211 of the granule can range from about 0.1 mm to about 1.0 mm, and the thickness of the heat-conducting wrapper 300 can be appropriately determined according to the diameter 211 of the granule.

[0128] When the diameter 211 of the granule ranges from about 0.1 mm to about 0.4 mm, the thickness of the heat-conducting wrapper 300 can range from about 0.6 μm to about 12 μm. When the diameter 211 of the granule ranges from about 0.5 mm to about 1.0 mm, the thickness of the heat-conducting wrapper 300 can range from about 12 μm to about 20 μm.

[0129] Figure 7 and Figure 8 is Figure 5 a cross-sectional view of the tobacco filler portion 200. In detail, Figure 7 and Figure 8 is a longitudinal cross-sectional view of the tobacco filler portion 200 including the inner wrapper 220 on which the tobacco material 210 in the form of granules is attached.

[0130] Referring to Figure 7 , the pleated portion 221 of the inner wrapper 220 can be formed by press bonding. On the surface of the inner wrapper 220, a protruding portion can be repeatedly formed in a wavy shape. The tobacco material 210 in the form of granules can be attached between the protruding portions. When the tobacco material 210 is attached to the inner wrapper 220, the inner wrapper 220 can be rolled and cut, and then the tobacco material 210 can be wrapped by the heat-conducting wrapper 300.

[0131] It is required to stably attach the granule between the pleated portion 221 of the inner wrapper 220, and thus it is required to appropriately determine the diameter 211 of the granule with respect to the width 222 of the pleated portion 221. When the diameter 211 of the granule is too large, the granule can not be inserted between the pleated portion 221, and when the diameter 211 is too small, the granule can be separated from the pleated portion 221.

[0132] To this end, the width 222 of the wrinkle portion 221 (i.e., the distance between two adjacent ridge portions) can be about 1.4 times to about 1.6 times the diameter 211 of the granule, to stably adhere. For example, the width 222 of the wrinkle portion 221 can be about 1.5 times the diameter 211 of the granule. When the width 222 of the wrinkle portion 221 is about 1.4 times to about 1.6 times the diameter 211 of the granule, the tobacco material 210 in the form of granules can stably adhere to the wrinkle portion 221.

[0133] In addition, the roughness of the surface of the inner wrapper 220 can be adjusted by modification to enable the tobacco material 210 in the form of granules to stably adhere on the surface of the inner wrapper 220. When the surface of the inner wrapper 220 is made rough by modification, fine irregularities, grooves, or the like can be formed. Thus, the friction on the surface of the inner wrapper 220 can increase, and thus the granules can stably adhere. Referring to Figure 8 The inner wrapper 220 can be rolled such that the surface to which the tobacco material 210 in the form of granules is attached faces the inside. In addition, the inner wrapper 220 can be rolled such that a plurality of layers of the inner wrapper 220 are formed on the longitudinal cross-section of the tobacco filler portion 200.

[0134] Figure 9 It is exemplified that the outer air is introduced to Figure 5 the cooler 400 of the aerosol generating article 10.

[0135] As described above, the cooler 400 can include the perforation 410 through which the outer air is introduced. When the aerosol flows, the aerosol can be mixed with the outer air, and thus the temperature of the aerosol can decrease. The hole 15 through which the outer air flows in can be formed at a position in the outer wrapper 14 corresponding to the position at which the perforation 410 is formed.

[0136] Figure 10 It is exemplified that the adhesive 230 is applied to Figure 5 the inner wrapper 220 of the tobacco filler portion 200.

[0137] Referring to Figure 10 , the adhesive 230 can be applied to the surface of the inner wrapper 220 such that the tobacco material 210 can be attached to the adhesive 230. The adhesive 230 can be a material having an adhesive property, and the adhesive can be applied to the surface of the inner wrapper 220, and thus, due to the adhesive property of the adhesive 230, the granules can be attached to the surface of the inner wrapper 200. For example, the adhesive 230 can include a humectant containing glycerin, or a flavor additive. The tobacco material 210 in the form of granules can stably adhere to the inner wrapper 220 by the adhesive 230.

[0138] The aerosol generating article 10 according to the embodiment can be inserted into an aerosol generating device and used. When the aerosol generating article 10 is inserted into the aerosol generating device, heat can be transferred to the heat conducting wrapper 300 through a heater and / or a vaporizer. Because the heat conducting wrapper 300 wraps around at least a portion of the outer circumferential surface of the aerosol generating portion 100 and the tobacco filler portion 200, heat from the heater and / or the vaporizer can be transferred to the aerosol generating material and the tobacco material 210. In this case, the heater 23 included in the aerosol generating device can be inserted into the aerosol generating article 10, and can heat the aerosol generating article. The heater 23 can also heat the aerosol generating article 10 from the outside of the aerosol generating article 10. The heater 23 can heat the aerosol generating article 10 according to an induction heating method.

[0139] Figure 11 is a flowchart of a manufacturing method of the aerosol generating article 10 according to the embodiment.

[0140] Referring to Figure 11 The manufacturing method of the aerosol generating article 10 can include a working step S100 in which at least one of a physical treatment and a chemical treatment is performed on the inner wrapper 220. The physical treatment or the chemical treatment allows the tobacco material 210 in a granular form to be stably attached.

[0141] For example, the physical treatment can be performed by forming a pleat portion 221 on the surface of the inner wrapper 220. The inner wrapper 220 including a non-tobacco material, such as paper, can be prepared. For example, the pleat portion 221 including a protrusion portion formed on the surface of the pleat portion can be formed by rolling the inner wrapper 220 with a rolling press.

[0142] For example, the chemical treatment can be performed by applying an adhesive 230 having an attachment property on the surface of the inner wrapper 220. The adhesive 230 can include, for example, a moisturizer containing glycerin.

[0143] In the working step S200, after the physical or chemical treatment is performed on the inner wrapper 220, the tobacco material in a granular form can be freely dropped on the surface of the inner wrapper 220, and thus the granules can be attached. The tobacco material having a granular form can not be well attached to the inner wrapper 220 due to static electricity. In this regard, the tobacco material 210 having a granular form can be freely dropped on the surface of the inner wrapper 220 to allow the tobacco material 210 to be uniformly and stably attached.

[0144] In working step S300, the tobacco filler portion 200 can be prepared by rolling and cutting the inner wrapper 220 to which the tobacco material 210 in the form of particles is attached. When the inner wrapper 220 to which the particles are attached is inwardly rolled and cut to an appropriate size, the tobacco filler portion 200 can be completed.

[0145] In working step S400, the aerosol generating portion 100 can be connected to the end portion of the completed tobacco filler portion 200. The aerosol generating portion 100 is connected to the tobacco filler portion 200 such that the aerosol generated by the aerosol generating portion 100 can flow to the tobacco filler portion 200.

[0146] In working step S500, when the tobacco filler portion 200 is connected to the aerosol generating portion 100, the outer circumferential surface of the aerosol generating portion 100 and the tobacco filler portion 200 can be wrapped by the heat-conducting wrapper 300. Accordingly, the aerosol generating portion 100 and the tobacco filler portion 200 for the aerosol generating article 10 can be manufactured.

[0147] It will be understood by those of ordinary skill in the art related to the present embodiment that various changes in form and details can be made therein without departing from the scope of the characteristic described above. Accordingly, the disclosed method should be considered in a descriptive sense only and not limiting. The scope of the present disclosure is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents of the present disclosure should be construed as being included in the present disclosure.

Claims

1. An aerosol-generating product, wherein, The aerosol-generating products include: An aerosol generating unit, the aerosol generating unit including an aerosol generating substance, the aerosol generating substance being configured to vaporize into an aerosol; A tobacco filling portion, comprising an inner packaging component and tobacco material particles with a diameter of 0.1 mm to 1.0 mm, wherein the inner packaging component has multiple pleats, and the tobacco material particles are attached to the multiple pleats, such that tobacco components are added to an aerosol passing through the tobacco filling portion; and A heat-conducting package that wraps around at least a portion of the outer surface of the aerosol generating portion and the outer surface of the tobacco filling portion, and the heat-conducting package is configured to transfer heat to the aerosol generating substance and the tobacco material. The width of each of the plurality of folds is 1.4 to 1.6 times the diameter of each of the particles.

2. The aerosol-generating product according to claim 1, wherein, The diameter of the particles is 0.1 mm to 0.4 mm, and the thickness of the heat-conducting package is 0.6 μm to 12 μm.

3. The aerosol-generating product according to claim 1, wherein, The diameter of the particles is 0.5 mm to 1.0 mm, and the thickness of the heat-conducting package is 12 μm to 20 μm.

4. The aerosol-generating product according to claim 1, wherein, An adhesive is applied to the surface of the inner packaging, and the tobacco material is attached to the adhesive.

5. The aerosol-generating product according to claim 4, wherein, The adhesive includes glycerin.

6. The aerosol-generating product according to claim 1, wherein, The plurality of pleats are formed to extend along the length of the aerosol-generated article to form air channels.

7. The aerosol-generating product according to claim 1, wherein, The roughness of the inner packaging is increased by surface modification, so that the particles are attached to the surface of the inner packaging by means of adhesion due to the increase in roughness.

8. The aerosol-generating article according to claim 1, wherein, The multiple pleats of the inner packaging have multiple protrusions formed in a wavy manner, and the particles are attached between adjacent protrusions.

9. The aerosol-generating product according to claim 1, wherein, The inner packaging is made of non-tobacco materials.

10. The aerosol-generating article according to claim 1, further comprising: A cooler including at least one perforation configured to introduce external air, such that the aerosol flowing through the cooler is cooled by the external air. as well as A filter unit configured to filter the aerosol.

11. A method for manufacturing an aerosol-generated product, wherein, The manufacturing method includes: The inner packaging is physically treated to improve the adhesion of the surface of the inner packaging. The physical treatment includes forming a plurality of pleats on the surface of the inner packaging with a forming roller, and forming a plurality of protrusions on the plurality of pleats. Particles of tobacco material with a diameter of 0.1 mm to 1.0 mm are placed on the surface of the inner packaging by free fall, so that the particles are attached to the surface of the inner packaging by adhesion. The tobacco filling portion is prepared by rolling and cutting the inner packaging component; Connect the aerosol generating section to the tobacco filling section; and The outer surfaces of the tobacco filling portion and the aerosol generating portion are wrapped with heat-conducting packaging. The width of each of the plurality of folds is 1.4 to 1.6 times the diameter of each of the particles.

12. The manufacturing method of claim 11, wherein in addition to the physical treatment, the manufacturing method further includes a chemical treatment, the chemical treatment including applying an adhesive to the surface of the inner packaging.

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