External heating type aerosol generating device and cigarette used in the aerosol generating device

Abstract

To provide an external heating type aerosol generation device and a cigarette used for the generation device by which a sufficient atomization amount is provided so as to enable a user to experience satisfactory smoking even at initial puffs since thermal energy is transmitted to the cigarette easily.SOLUTION: A cigarette includes: an aerosol base material part including paper containing a humectant, which generates humectant steam when heated; a medium part for generating nicotine steam when heated; a base material part wrapper surrounding the aerosol base material part; a medium part wrapper surrounding the medium part; and an outer cover for surrounding the medium part surrounded by the medium part wrapper and elements other than the medium part collectively. The medium part wrapper and the base material part wrapper are composed of laminated paper of metal with a pre-set thickness and thermal conductivity and paper.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to an externally heated aerosol generating device and a cigarette used in the aerosol generating device. More specifically, the present invention relates to an aerosol generating device in which a heater included in the aerosol generating device does not directly contact the cigarette, heats the cigarette, and can generate an aerosol, and a cigarette used in the aerosol generating device.

Background Art

[0002] Recently, there has been an increasing demand for alternative methods to overcome the disadvantages of conventional cigarettes. For example, there is an increasing demand for a method of generating an aerosol by heating an aerosol generating substance in a cigarette, rather than a method of burning a cigarette to generate an aerosol. As a result, research on heated cigarettes or heated aerosol generating devices has been actively carried out.

[0003] Among aerosol generating devices, there is an externally heated aerosol generating device that heats an inserted cigarette outside the cigarette to generate an aerosol that can be inhaled by a user. The externally heated aerosol generating device is characterized in that when a cigarette containing an aerosol generating substrate is inserted, it does not directly contact the inserted cigarette with a heater to generate an aerosol, but adds heat from the outside to generate an aerosol. There is a limit in that the thermal energy of the heater is not smoothly transmitted to the cigarette, and a sufficient amount of atomization cannot be ensured in the initial puff section where the user starts puffing through the aerosol generating device.

[0004] In order to increase the atomization amount, if the heating temperature of the heater is set too high, not only the life of the battery that supplies power to the heater is shortened, but it also becomes difficult to provide a uniform tobacco flavor to the user. Therefore, there is a need for a technology that can provide a consistent smoking feeling to the user while appropriately maintaining the heating temperature.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The technical problem to be solved by the present invention is to provide a cigarette and an aerosol generating device using the cigarette, in which when a cigarette is inserted into an externally heated aerosol generating device and the heater of the aerosol generating device is heated, the heat energy of the heater is efficiently transmitted to the cigarette.

Means for Solving the Problem

[0006] A cigarette according to an embodiment of the present invention for solving the above technical problem is a cigarette in which an aerosol is generated from a medium contained in a medium portion through heating, and the cigarette includes: a medium wrapper surrounding the medium portion; and an outer skin surrounding the medium portion surrounded by the medium wrapper and the elements excluding the medium portion in a lump. The medium wrapper is composed of a laminated paper of metal and paper having a preset thickness and thermal conductivity.

[0007] A cigarette according to another embodiment of the present invention for solving the above technical problem is a cigarette in which an aerosol is generated from an aerosol generation base material and a medium contained in an aerosol base material portion and a medium portion through heating, and the cigarette includes: a base material wrapper surrounding the aerosol base material portion; a medium wrapper surrounding the medium portion; and an outer skin surrounding the aerosol base material portion and the medium portion surrounded by the base material wrapper and the medium wrapper and the remaining elements in a lump. The base material wrapper and the medium wrapper are composed of a laminated paper of metal and paper having a preset thickness and thermal conductivity.

Effect of the Invention

[0008] According to the present invention, it is possible to provide an aerosol with a sufficient atomization amount to a user using the aerosol generating device even at the time of an initial puff.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiments for Carrying Out the Invention

[0010] A cigarette according to an embodiment of the present invention for solving the above - mentioned technical problem is a cigarette in which an aerosol is generated from a medium contained in a medium part through heating, and the cigarette includes a medium part wrapper surrounding the medium part, and an outer skin surrounding the medium part surrounded by the medium part wrapper and the elements excluding the medium part together. The medium part wrapper is composed of metal and paper with a preset thickness and thermal conductivity laminated paper.

[0011] In the cigarette, the thickness is an arbitrarily determined value in the range of 6.3 μm to 30 μm.

[0012] In the cigarette, the metal is aluminum.

[0013] In the cigarette, the thickness is a value arbitrarily determined within the range of 6 μm to 30 μm.

[0014] In the cigarette, the metal is copper.

[0015] A cigarette according to another embodiment of the present invention for solving the above technical problem is a cigarette in which an aerosol is generated from a medium contained in a medium portion through heating. The cigarette includes a medium portion wrapper surrounding the medium portion, and an outer skin surrounding together an element excluding the medium portion and the medium portion surrounded by the medium portion wrapper. The medium portion wrapper is a paper containing activated carbon fiber (ACF).

[0016] In the cigarette, the paper contains the activated carbon fiber at an arbitrarily determined ratio within the range of 25% to 50%.

[0017] In the cigarette, the paper contains the activated carbon fiber and has a preset porosity value.

[0018] An aerosol generation device according to still another embodiment of the present invention for solving the above technical problem is also an externally heated aerosol generation device that generates an aerosol through a cigarette among the cigarettes.

[0019] The cigarette according to the foregoing embodiment of the present invention and another embodiment for solving the above technical problem is a cigarette in which aerosol is generated from an aerosol-forming substrate and a medium contained in an aerosol substrate portion and a medium portion through heating, the cigarette including: a substrate portion wrapper surrounding the aerosol substrate portion; a medium portion wrapper surrounding the medium portion; and an outer skin surrounding the aerosol substrate portion and the medium portion surrounded by the substrate portion wrapper and the medium portion wrapper, respectively, and the remaining elements together, wherein the substrate portion wrapper and the medium portion wrapper are made of laminated paper of metal and paper having a preset thickness and thermal conductivity.

[0020] In the cigarette, the thickness is an arbitrarily determined value within the range of 6.3 μm to 30 μm.

[0021] In the cigarette, the metal is aluminum.

[0022] In the cigarette, the thickness is an arbitrarily determined value within the range of 6 μm to 30 μm.

[0023] In the cigarette, the metal is copper.

[0024] An alternative embodiment for solving the above technical problem is a cigarette in which aerosol is generated from an aerosol-forming substrate and a medium contained in an aerosol substrate portion and a medium portion through heating, the cigarette including: a substrate portion wrapper surrounding the aerosol substrate portion; a medium portion wrapper surrounding the medium portion; and an outer skin surrounding the aerosol substrate portion and the medium portion surrounded by the substrate portion wrapper and the medium portion wrapper, respectively, and the remaining elements together, wherein the substrate portion wrapper and the medium portion wrapper are papers with activated carbon fiber (ACF) added therein.

[0025] In the cigarette, the paper has the activated carbon fiber added therein at an arbitrarily determined ratio within the range of 25% to 50%.

[0026] In the cigarette, the paper contains the activated carbon fiber and has a preset porosity value.

[0027] An example of an externally heated aerosol generating device for solving the above technical problem is an externally heated aerosol generating device that generates aerosol through the cigarette. When the cigarette is coupled to a heater of the device, the heater heats an aerosol base material portion of the cigarette to indirectly increase the temperature of a medium contained in the medium portion.

[0028] The terms used in the examples are, as much as possible, general terms that are currently widely used while considering the functions in the present invention. However, they may also vary depending on the intentions of those skilled in the relevant art, precedents, or the emergence of new technologies. Also, in certain cases, there are terms arbitrarily selected by the applicant, and in such cases, the meaning thereof is described in detail in the description part of the invention. Therefore, the terms used in the present invention are not merely names of terms, but must be defined based on the meaning the terms have and the overall content of the present invention.

[0029] Throughout the specification, when a certain part "includes" a certain component, it means that, unless otherwise stated to the contrary, it does not exclude other components and may further include other components. Also, terms such as "… part" and "… module" described in the specification mean units that process at least one function or operation, and they may be implemented by hardware or software, or also by a combination of hardware and software.

[0030] Hereinafter, based on the accompanying drawings, embodiments of the present invention will be described in detail so that those having ordinary knowledge in the technical field to which the present invention pertains can easily implement them. However, the present invention can be embodied in various mutually different forms and is not limited to the embodiments described herein.

[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0032] FIG. 1 and FIG. 2 are drawings showing an example in which a cigarette is inserted into an aerosol generating device.

[0033] Referring to FIGS. 1 and 2, the aerosol generating device 10 includes a battery 120, a control unit 110, a heater 130, and an atomizer 180. Further, a cigarette 200 can be inserted into the internal space of the aerosol generating device 10.

[0034] In the aerosol generating device 10 illustrated in FIGS. 1 and 2, the components according to this embodiment are illustrated. Therefore, those having ordinary knowledge in the technical field related to this embodiment will be able to understand that the aerosol generating device 10 further includes other general-purpose components in addition to the components illustrated in FIGS. 1 and 2.

[0035] Also, although FIGS. 1 and 2 illustrate that the aerosol generating device 10 includes a heater 130, the heater 130 can be omitted as necessary.

[0036] In FIG. 1, the battery 120, the control unit 110, the atomizer 180, and the heater 130 are illustrated as being arranged in a row. Also, in FIG. 2, the atomizer 180 and the heater 130 are illustrated as being arranged in parallel. However, the internal structure of the aerosol generating device 10 is not limited to that illustrated in FIG. 1 or FIG. 2. That is, depending on the design of the aerosol generating device 10, the arrangement of the battery 120, the control unit 110, the atomizer 180, and the heater 130 can be changed.

[0037] When the cigarette 200 is inserted into the aerosol generating device 10, the aerosol generating device 10 can operate the atomizer 180 to generate an aerosol from the atomizer 180. The aerosol generated by the atomizer 180 passes through the cigarette 200 and is transmitted to the user. A more detailed description of the atomizer 180 will be described later.

[0038] The battery 120 supplies the power used for the operation of the aerosol generating device 10. For example, the battery 120 can supply power so that the heater 130 or the vaporizer 180 is heated, and can supply the power necessary for the operation of the control unit 110. Further, the battery 120 can supply the power necessary for the operation of a display, a sensor, a motor, etc. provided in the aerosol generating device 10.

[0039] The control unit 110 generally controls the operation of the aerosol generating device 10. Specifically, the control unit 110 controls the operation of not only the battery 120, the heater 130, and the vaporizer 180, but also other components included in the aerosol generating device 10. Further, the control unit 110 can check the state of each component of the aerosol generating device 10 and determine whether the aerosol generating device 10 is in an operable state.

[0040] The control unit 110 includes at least one processor. The processor is embodied as an array of a large number of logic gates, and is also embodied by a combination of a general-purpose microprocessor and a memory in which a program executable by the microprocessor is stored. Also, those having ordinary knowledge in the technical field to which this embodiment belongs will be able to understand that it can also be embodied as other forms of hardware.

[0041] The heater 130 can be heated by the power supplied from the battery 120. For example, if a cigarette is inserted into the aerosol generating device 10, the heater 130 is located outside the cigarette. Therefore, the heated heater 130 can raise the temperature of the aerosol generating substance in the cigarette.

[0042] The heater 130 is also an electric resistance heater. For example, the heater 130 includes a conductive track, and when an electric current flows through the conductive track, the heater 130 can be heated. However, the heater 130 is not limited to the above-described example, and any device that can be heated to a desired temperature is applicable without limitation. Here, the desired temperature may be preset in the aerosol generating device 10, or may be set to a desired temperature by the user.

[0043] On the other hand, in another example, the heater 130 is also an induction heater. Specifically, the heater 130 includes a conductive coil for heating the cigarette by induction heating, and the cigarette may include a susceptor that is heated by the induction heater.

[0044] Although FIGS. 1 and 2 illustrate the heater 130 as being disposed outside the cigarette 200, it is not limited thereto. For example, the heater 130 includes a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element, and can heat the inside or outside of the cigarette 200 depending on the shape of the heating element.

[0045] In addition, a plurality of heaters 130 are disposed in the aerosol generating device 10. At this time, the plurality of heaters 130 may be disposed so as to be inserted into the cigarette 200, or may be disposed outside the cigarette 200. Also, among the plurality of heaters 130, some may be disposed so as to be inserted into the cigarette 200, and the rest may be disposed outside the cigarette 200. Further, the shape of the heater 130 is not limited to the shape illustrated in FIGS. 1 and 2, and can also be manufactured in various shapes.

[0046] The vaporizer 180 heats the liquid composition to generate an aerosol, and the generated aerosol can be transmitted to the user through the cigarette 200. That is, the aerosol generated by the vaporizer 180 moves along the air flow path of the aerosol generating device 10, and the air flow path is also configured such that the aerosol generated by the vaporizer 180 passes through the cigarette and is transmitted to the user.

[0047] For example, the vaporizer 180 may include, but is not limited to, a liquid storage unit, a liquid transfer means, and a heating element. For example, the liquid storage unit, the liquid transfer means, and the heating element may be independently included in the aerosol generating device 10 as modules.

[0048] The liquid storage unit can store a liquid composition. For example, the liquid composition is also a liquid containing a tobacco-containing substance including a volatile tobacco flavor component, or a liquid containing a non-tobacco substance. The liquid storage unit is also fabricated to be detachable from / to the vaporizer 180 and is also fabricated integrally with the vaporizer 180.

[0049] For example, the liquid composition may include water, a solvent, ethanol, a plant extract, a fragrance, a flavoring agent, or a vitamin mixture. The fragrance includes, but is not limited to, menthol, peppermint, spearmint oil, and aroma components of various fruits. The flavoring agent may include components that provide various fragrances or flavors to the user. The vitamin mixture is also a mixture in which at least one of vitamin A, vitamin B, vitamin C, and vitamin E is mixed, but is not limited thereto. Further, the liquid composition may include an aerosol former such as glycerin and propylene glycol.

[0050] The liquid transfer means can transfer the liquid composition of the liquid storage unit to the heating element. For example, the liquid transfer means can also be a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not limited thereto.

[0051] The heating element is an element for heating the liquid composition transmitted by the liquid transmission means. For example, the heating element may be, but is not limited to, a metal heating wire, a metal hot plate, a ceramic heater, etc. Further, the heating element may be composed of a conductive filament such as a nichrome wire and arranged in a structure so as to be wound around the liquid transmission means. The heating element is heated by the supply of an electric current, transfers heat to the liquid composition in contact with the heating element, and can heat the liquid composition. As a result, an aerosol can be generated.

[0052] For example, the vaporizer 180 is also referred to as a cartomizer or an atomizer, but is not limited thereto.

[0053] On the other hand, the aerosol generating device 10 may further include a general configuration in addition to the battery 120, the control unit 110, and the heater 130. For example, the aerosol generating device 10 may include a display capable of outputting visual information and / or a motor for outputting tactile information. Further, the aerosol generating device 10 may include at least one sensor (such as a puff sensing sensor, a temperature sensing sensor, a cigarette insertion sensing sensor, etc.). Further, the aerosol generating device 10 may also be manufactured by a structure in which external air flows in or internal gas flows out even when the cigarette 200 is inserted.

[0054] Although not shown in FIGS. 1 and 2, the aerosol generating device 10 may constitute a system together with a separate cradle. For example, the cradle can be used for charging the battery 120 of the aerosol generating device 10. Or the heater 130 is heated in a state where the cradle and the aerosol generating device 10 are coupled.

[0055] The cigarette 200 is also similar to a general combustion-type cigarette. For example, the cigarette 200 can be divided into a first part containing an aerosol generating substance and a second part containing a filter or the like. Or the second part of the cigarette 200 also contains an aerosol generating substance. For example, an aerosol generating substance made in the form of granules or capsules is inserted into the second part.

[0056] Inside the aerosol generating device 10, the entire first part can be inserted, and the second part can be exposed to the outside. Alternatively, only a part of the first part can be inserted inside the aerosol generating device 10, and a part of the first part and the second part can be inserted. The user can inhale the aerosol with the second part in the mouth. At this time, the aerosol is generated by the outside air passing through the first part, and the generated aerosol is transmitted to the user's mouth through the second part.

[0057] As an example, the outside air can flow in through at least one air passage formed in the aerosol generating device 10. For example, the opening and closing of the air passage formed in the aerosol generating device 10 and / or the size of the air passage can be adjusted by the user. Thereby, the atomization amount, the smoking feeling, etc. can be adjusted by the user. As another example, the outside air flows into the inside of the cigarette 200 through at least one hole formed on the surface of the cigarette 200.

[0058] FIG. 3 is a drawing showing another example in which a cigarette is inserted into the aerosol generating device.

[0059] Comparing FIG. 3 with the aerosol generating device described through FIGS. 1 and 2, it can be seen that the vaporizer 180 is omitted. Since the double-medium cigarette 300 inserted into the aerosol generating device illustrated in FIG. 3 includes an element that performs the function of the vaporizer 180, FIG. 3 does not include the vaporizer 180, which is different from the aerosol generating device illustrated in FIGS. 1 and 2.

[0060] The aerosol generating device 10 according to FIG. 3 can generate an aerosol that can be inhaled by the user from the double-medium cigarette 300 by externally heating the double-medium cigarette 300 when the double-medium cigarette 300 is inserted. The double-medium cigarette 300 will be specifically described through FIG. 6.

[0061] Hereinafter, with reference to FIG. 4, an example of the cigarette 200 will be described.

[0062] Figure 4 is a drawing showing an example of a cigarette.

[0063] Referring to Figure 4, the cigarette 200 includes a tobacco rod 210 and a filter rod 220. Referring to Figures 1 and 2, the aforementioned first part includes the tobacco rod 210, and the second part includes the filter rod 220.

[0064] In Figure 4, the filter rod 220 is illustrated as a single segment, but is not limited thereto. That is, the filter rod 220 is composed of a plurality of segments. For example, the filter rod 220 may include a first segment that cools the aerosol and a second segment that filters a predetermined component contained in the aerosol. Further, if necessary, the filter rod 220 may further include at least one segment that performs other functions.

[0065] The cigarette 200 is also packaged by at least one wrapper 240. At least one hole through which external air flows in or internal gas flows out may be formed in the wrapper 240. As an example, the cigarette 200 is also packaged by one wrapper 240. As another example, the cigarette 200 is packaged by overlapping two or more wrappers 240. For example, the tobacco rod 210 may be packaged by the first wrapper, and the filter rod 220 may be packaged by the second wrapper. Then, the tobacco rod 210 and the filter rod 220 packaged by the individual wrappers are combined, and the entire cigarette 200 may be repackaged by the third wrapper. If each of the tobacco rod 210 or the filter rod 220 is composed of a plurality of segments, each segment is also packaged by an individual wrapper. Then, the entire cigarette 200 in which the segments packaged by the individual wrappers are combined is also repackaged by another wrapper.

[0066] The tobacco rod 210 contains aerosol generating substances. For example, the aerosol generating substances may include, but are not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. Further, the tobacco rod 210 may contain other additive substances such as flavoring agents, wetting agents, and / or organic acids. Also, a flavoring liquid such as menthol or a humectant is added to the tobacco rod 210 by being sprayed onto the tobacco rod 210.

[0067] The tobacco rod 210 is manufactured in various ways. For example, the tobacco rod 210 can be made by a sheet or by a strand. Also, the tobacco rod 210 can be made by shredded tobacco in which the tobacco sheet is finely cut. Further, the tobacco rod 210 is also covered by a heat conductive substance. For example, the heat conductive substance can be a metal foil such as aluminum foil, but is not limited thereto. As an example, the heat conductive substance surrounding the tobacco rod 210 can push and disperse the heat transmitted to the tobacco rod 210, improve the heat conductivity applied to the tobacco rod, and thereby improve the tobacco flavor. Also, the heat conductive substance surrounding the tobacco rod 210 can function as a susceptor to be heated by an induction heating type heater. At this time, although not shown, the tobacco rod 210 may further include an additional susceptor in addition to the heat conductive substance surrounding the outside.

[0068] The filter rod 220 is also a cellulose acetate filter. On the other hand, there is no limitation on the shape of the filter rod 220. For example, the filter rod 220 can be a cylindrical rod or a tubular rod having a hollow inside. Also, the filter rod 220 can be a recessed rod. If the filter rod 220 is composed of a plurality of segments, at least one of the plurality of segments is also made in a different shape.

[0069] The filter rod 220 is manufactured to generate a fragrance. As an example, a flavoring liquid may be sprayed onto the filter rod 220, or separate fibers coated with the flavoring liquid may be inserted into the interior of the filter rod 220.

[0070] In addition, the filter rod 220 includes at least one capsule 230. Here, the capsule 230 may perform a function of generating a fragrance or a function of generating an aerosol. For example, the capsule 230 also has a structure that covers and encloses a liquid containing a fragrance with a film. The capsule 230 has a spherical or cylindrical shape, but is not limited thereto.

[0071] If the filter rod 220 includes a segment for cooling the aerosol, the cooling segment is also manufactured from a polymer material or a biodegradable polymer material. For example, the cooling segment is made of only pure polylactic acid, but is not limited thereto. Alternatively, the cooling segment is also made of a cellulose acetate filter having a plurality of perforations formed therein. However, the cooling segment is not limited to the examples described above, and may be applicable without limitation as long as it can perform the function of cooling the aerosol.

[0072] On the other hand, although not shown in FIG. 4, according to an embodiment, the cigarette 200 may further include a front filter. The front filter is located on one side of the tobacco rod 210 opposite to the filter rod 220. The front filter can prevent the tobacco rod 210 from detaching to the outside and prevent the aerosol liquefied from the tobacco rod 210 during smoking from flowing into the aerosol generating device (100 in FIGS. 1 and 2).

[0073] FIG. 5 is a drawing showing another example of a cigarette.

[0074] Referring to FIG. 5, it can be seen that the cigarette 200 has a form in which the cross-tube 205, the tobacco rod 210, the tubes 220a, and the filter 220b are covered by the final wrapper 240. In FIG. 5, the wrapper includes individual wrappers that respectively cover the cross-tube 205, the tobacco rod 210, the tubes 220a, and the filter 220b, and a final wrapper that covers the cross-tube 205, the tobacco rod 210, the tubes 220a, and the filter 220b covered by the individual wrappers as a whole.

[0075] Referring to FIGS. 1 and 2, the aforementioned first part includes the cross-tube 205 and the tobacco rod 210, and the second part includes the filter rod 220. For the sake of convenience in explanation, hereinafter, the description will be made with reference to FIGS. 1 and 2, and the descriptions overlapping with those in FIG. 4 will be omitted.

[0076] The cross-tube 205 means a cross-shaped tube connected to the tobacco rod 210.

[0077] When the cigarette 200 is inserted into the aerosol generating device, the cross-tube 205, together with the tobacco rod 210, is a part sensed by the cigarette sensing sensor, and is covered by the same copper paper wrapper as the tobacco rod 210. It can be used to determine whether the cigarette 200 inserted with the cigarette sensing sensor is the type of cigarette (cigarette manufactured by the company itself) supported by the aerosol generating device. The copper paper wrapper will be described later with reference to FIGS. 7 to 9.

[0078] The tobacco rod 210 includes an aerosol generating substrate that is heated by the heater 130 of the aerosol generating device 10 to generate aerosol.

[0079] When the aerosol generation substrate of the tobacco rod 210 receives a sufficient amount of energy from the heater 130 and is heated, the tube 220a functions to transmit the generated aerosol to the filter 220b. The tube 220a is a tube manufactured by adding a certain amount or more of triacetin (TA), which is a plasticizer, to cellulose acetate tow and molding it into a circle. Compared with the cross-tube 205, it only differs in form and has a difference in arrangement in connecting the tobacco rod 210 and the filter 220b.

[0080] When the aerosol generated by the tobacco rod 210 is transmitted through the tube 220a, the filter 220b functions to allow the user to inhale the aerosol filtered by the filter 220b by passing the aerosol through. The filter 220b is also a cellulose acetate filter made based on cellulose acetate tow.

[0081] The final wrapper 240 is a paper that surrounds the cross-tube 205, the tobacco rod 210, the tube 220a, and the filter 220b respectively, and may include any of the cross-tube wrapper 240b, the tobacco rod wrapper 240c, the tube wrapper 240d, and the filter wrapper 240e.

[0082] In FIG. 5, the cross-tube wrapper 240b is wrapped with an aluminum material wrapper, the tube portion 220a is wrapped with an MFW or 24K wrapper, and the filter 220b is wrapped and covered with an oil-resistant hard wrapper or a PLA (Poly Lactic Acid) material laminated paper. The tobacco rod wrapper 240c and the final wrapper 240 will be described in more detail later.

[0083] The tobacco rod wrapper 240c is a wrapper that covers and wraps the tobacco rod 210, and a heat conductive improving substance can be coated thereon in order to maximize the efficiency of the thermal energy transmitted by the heater 130. For example, the tobacco rod wrapper 240c can be produced in such a manner that at least one of silver paper (Ag), aluminum paper (Al), copper paper (Cu), carbon paper, filler, ceramic (AlN, Al2O3), silicon carbide, sodium citrate (Na citrate), potassium citrate (K citrate), aramid fiber, nano cellulose, mineral paper, glassine paper, and SWNT (Single-Walled Carbon Nanotube) is coated on a general wrapper or a release base paper. The general wrapper means a wrapper applied to a widely known cigarette, and means a porous wrapper produced from a material that has been verified to have workability in paper manufacturing and a thermal conductivity both exceeding a certain value through a hand-made paper test.

[0084] Also, the final wrapper 240 in the present invention can be produced in such a manner that at least one of filler, ceramic, silicon carbide, sodium citrate, potassium citrate, aramid fiber, nano cellulose, and SWNT among various substances coated on the tobacco rod wrapper 240c is coated on the MFW base paper.

[0085] The heater 130 included in the external heating type aerosol generating device 10 described with reference to FIGS. 1 and 2 is an object to be controlled by the control unit 110, and heats the aerosol generating substrate included in the tobacco rod 210 to generate an aerosol. At this time, the thermal energy transmitted to the tobacco rod 210 is composed of radiant heat at 75%, convective heat at 15%, and conductive heat at 10%. Depending on the embodiment, the ratios of radiant heat, convective heat, and conductive heat that make up the thermal energy transmitted to the tobacco rod 210 may be different.

[0086] Since the heater 130 cannot directly contact the aerosol - generating substrate to transfer thermal energy, in order to overcome the difficulty of rapidly generating aerosol, as described above, the tobacco rod wrapper 240c and the final wrapper 240 are coated with a heat - conductivity - improving substance, and by promoting the efficient transfer of thermal energy to the aerosol - generating substrate of the tobacco rod 210, an adequate amount of aerosol can be provided to the user even at the initial puff before the heater 130 is fully heated.

[0087] According to an embodiment, the heat - conductivity - improving substance may be coated on only one of the tobacco rod wrapper 240c or the final wrapper 240. The present invention may be implemented not only by the above - mentioned example but also by a method in which an organometal, an inorganic metal, a fiber, or a polymer material having a predetermined thermal conductivity is coated on the tobacco rod wrapper 240c or the final wrapper 240.

[0088] Hereinafter, the process of manufacturing the tobacco rod wrapper 240c and the final wrapper 240 according to the present invention and the physical properties of the tobacco rod wrapper 240c and the final wrapper 240 manufactured by the process will be described.

[0089] The tobacco rod wrapper 240c can also be manufactured by coating the above - mentioned heat - conductivity - improving substance on a general wrapper or a release base paper and then slitting. As an example of the method of coating the heat - conductivity - improving substance on the general wrapper or the release base paper, a Pearl Coating method can be used. Also, as an example of the slitting method, the width of the slit is 24.5 mm, and the width of the slit may vary according to the embodiment.

[0090] As an example of the method of manufacturing the tobacco rod wrapper 240c, at this time, as the wrapper serving as the base of the tobacco rod wrapper 240c, a calendered general wrapper can be used.

[0091]

Table 1

[0092] Table 1 is a table showing an example of the physical properties of a general wrapper before the heat-conductivity improving substance is pearl-coated. Referring to Table 1, it can be seen that for the general wrapper before the heat-conductivity improving substance is pearl-coated, after calendar rolling, compared with the state of the base paper, its thickness decreases by 23.5%, and other physical properties are also different. The tobacco rod wrapper 240c can be manufactured by the method of pearl-coating the heat-conductivity improving substance on the general wrapper after calendar rolling is completed. As a selected embodiment, the tobacco rod wrapper 240c is manufactured by performing a calendar rolling process after coating the heat-conductivity improving substance on any one of the general wrapper, the release base paper, and the MFW base paper. According to this selected embodiment, in order to increase the heat energy transfer rate of the aerosol generation substrate of the cigarette 200, instead of the wrapper after the calendar rolling process, the calendar rolling process is performed on the wrapper coated with the heat-conductivity improving substance first.

[0093]

Table 2

[0094] Table 2 is a table showing a comparison of the physical properties of various wrappers before and after coating with potassium citrate, which is a heat-conductivity improving substance. Referring to Table 2, it can be seen that depending on the material of the base wrapper, the coating amount is applied differently from 1.98% to 2.24%, and the tensile strength, smoothness, and stiffness of the tobacco rod wrapper 240c are changed by more than a preset ratio. Here, the preset ratio means a ratio value calculated by experimental and mathematical calculations in order to increase the heat energy transmitted to the aerosol generation substrate by a certain value or more.

[0095]

Table 3

[0096] Table 3 is a table showing a comparison of the physical properties of sodium citrate, which is a heat conductivity improving substance, before and after coating various wrappers. Referring to Table 3, it can be seen that depending on the material of the base wrapper, the coating amount was applied differently in the range of 1.83% to 2.31%, and the tensile strength, smoothness, and strength of the tobacco rod wrapper 240c were changed by more than a preset ratio. Here, the preset ratio means a ratio value calculated by experimental and mathematical calculations in order to increase the thermal energy transmitted to the aerosol generating substrate to a certain value or more.

[0097] As shown in Table 2 and Table 3, the wrappers coated with potassium citrate or sodium citrate are also manufactured by the tobacco rod wrapper 240c through calendering. Also, potassium citrate and sodium citrate described through Table 2 and Table 3 can be applied with other heat conductivity improving substances that are not potassium citrate and sodium citrate, as an example of heat conductivity improving substances, according to the examples.

[0098]

Table 4

[0099] Table 4 shows the results of quantifying indicators directly related to the smoking sensation, such as the atomization amount and flavor degree, when operating an aerosol generating device through a tobacco rod wrapper 240c coated with the heat conductivity improving substance described through Tables 1 to 3. To confirm how well the heat energy is transmitted to the aerosol generating substrate contained in the tobacco rod, the heat conductivity improving substance was applied only to the tobacco rod wrapper 240c, and the final wrapper 240 was uniformly applied with a thick and thin paper inner wrapper. In Table 4, the general wrapper (control group) means a general wrapper to which no heat conductivity improving substance is applied, and is an experimental group for confirming the effectiveness of the present invention. In Table 4, the general wrapper (Na) and the general wrapper (K) are general wrappers to which 2% coating of sodium citrate and potassium citrate is applied, respectively, and the release base paper (Na) and the release base paper (K) are release base papers to which 2% coating of sodium citrate and potassium citrate is applied, respectively. The general wrapper (pearl coating) means an experimental group in which a specific heat conductivity improving substance excluding sodium citrate and potassium citrate is applied to the general wrapper by a pearl coating method.

[0100] Overall, according to Table 4, the experimental groups to which the heat conductivity improving substance was applied showed almost no difference in the mouth heat sensation compared to the general wrapper (control group), while showing more excellent results in terms of the atomization amount, taste intensity, and flavor degree. Each result is a relatively calculated result based on a maximum of 9 points as the reference score. As described above, according to the present invention, by applying the heat conductivity improving substance to the tobacco rod wrapper 240c, the transmission rate of the heat energy of the heater 130 supplied to the aerosol generating substrate can be increased, and a rich atomization amount and a suitable smoking sensation can be provided to a user using an externally heated aerosol generating device.

[0101] The results according to Table 4 are the results of applying the heat conductivity improving substance only to the tobacco rod wrapper 240c, and according to the embodiment, the heat conductivity improving substance is applied only to the final wrapper 240.

[0102]

Table 5

[0103] Table 5 is a table that numerically shows the smoking sensation felt by the user and the increase in the atomization amount of the aerosol generated through the aerosol generating device when the heat conductivity improving substance is applied only to the final wrapper 240. Table 5 is a result of adopting a general porous wrapper for the tobacco rod wrapper 240c by applying the heat conductivity improving substance only to the final wrapper 240 in order to confirm how well the heat energy is transmitted to the aerosol generating substrate contained in the tobacco rod. In Table 5, MFW (control group) means the MFW base paper to which no heat conductivity improving substance is applied, and is a comparative experimental group for confirming the effectiveness of the present invention. In Table 5, MFW (Na) and MFW (K) respectively mean the MFW base paper to which 2% coating of sodium citrate and potassium citrate is applied.

[0104] According to Table 5, it can be seen that the final wrapper 240 to which the heat conductivity improving substance is applied shows no difference from the control group to which no heat conductivity improving substance is applied in terms of the mouth heat sensation, while showing higher result values in terms of the atomization amount, taste intensity, and flavor degree. Table 5 is a result relatively calculated based on a maximum of 9 points as a reference score as in Table 4. As described above, according to the present invention, by applying the heat conductivity improving substance to the final wrapper 240, the transmission rate of the heat energy of the heater 130 supplied to the aerosol generating substrate is increased, and a rich atomization amount and a suitable smoking sensation can be provided to the user using the externally heated aerosol generating device.

[0105] FIG. 6 is a drawing showing an example of a dual-medium cigarette used in the apparatus of FIG. 3.

[0106] In FIG. 6, the name "dual-medium cigarette" is given not only for the purpose of distinguishing from the cigarettes described in FIGS. 4 and 5, but also for the purpose of simplifying the explanation related to the present invention, and can be called the same as a general cigarette depending on the embodiment.

[0107] Referring to FIG. 6, it can be seen that the dual-medium cigarette 300 has a form in which the aerosol base part 310, the medium part 320, the cooling part 330, and the filter part 340 are covered by the final wrapper 350. In FIG. 6, the final wrapper 350 means an outer skin that covers the individual wrappers that cover the aerosol base part 310, the medium part 320, and the filter part 340 respectively, and also covers the aerosol base part 310, the medium part 320, and the filter part 340 covered by the individual wrappers as a whole.

[0108] The aerosol base part 310 is a part formed by adding a moisturizing agent to a pulp-based paper and shaping it into a preset form. The moisturizing agents (base materials) included in the aerosol base part 310 are propylene glycol and glycerin. The moisturizing agent of the aerosol base part 310 contains propylene glycol and glycerin having a certain weight ratio compared to the weight of the base paper. When the dual-medium cigarette 300 is inserted into the aerosol generating device 10 of FIG. 3, the aerosol base part 310 is located closest to the external heating heater 130. If it is heated to a certain temperature or higher by the heater 130, it will generate moisturizing agent vapor.

[0109] The medium part 320 includes one or more of a sheet, a strand, and shredded tobacco obtained by finely cutting a tobacco sheet, and is a part that generates nicotine in order to provide a smoking experience to the user. The medium part 320 is not directly heated from the heater 130 even when the dual-medium cigarette 300 is inserted into the aerosol generating device 10 of FIG. 3, and is indirectly heated by conduction, convection, and radiation from the medium wrapper (or the final wrapper) that covers the aerosol base part 310 and the medium part 320 to be heated. In the present invention, considering the characteristic that the temperature to which the medium contained in the medium part 320 must reach is lower than the temperature to which the humectant contained in the aerosol base part 310 must reach, after heating the aerosol base part 310 with the external heater 130, the temperature of the medium part 320 is raised circuitously. When the temperature of the medium contained in the medium part 320 rises to a certain temperature or higher, nicotine vapor is generated from the medium part 320.

[0110] According to an embodiment, when the dual-medium cigarette 300 is inserted into the aerosol generating device 10 of FIG. 3, a part of the medium part 320 can be heated from the heater 130 in a direction facing the heater 130.

[0111] The cooling part 330 is made of a tube filter containing a predetermined weight of a plasticizer, and is cooled while the humectant vapor and nicotine vapor generated from the aerosol base part 310 and the medium part 320 are mixed and aerosolized and passed through the cooling part 330, and is not covered by an individual wrapper unlike the aerosol base part 310, the medium part 320, and the filter part 340.

[0112] The filter part 340 is also a cellulose acetate filter, and there is no limitation on the shape of the filter part 340. The filter part 340 can also be a cylindrical rod or a tubular rod with a hollow inside. If the filter part 340 is composed of a plurality of segments, at least one of the plurality of segments is also made in a different shape. The filter part 340 is made to generate a fragrance. As an example, a flavoring liquid may be sprayed on the filter part 340, or separate fibers coated with the flavoring liquid may be inserted into the filter part 340.

[0113] In addition, the filter part 340 includes at least one capsule. Here, the capsule may perform a function of generating a fragrance. For example, the capsule may have a structure that covers and wraps a liquid containing a fragrance with a film, and can have a spherical or cylindrical shape, but is not limited thereto.

[0114] The final wrapper 350 means an outer skin that wraps the aerosol base part 310, the medium part 320, and the filter part 340 covered by individual wrappers together, and the final wrapper 350 can be made of the same material as the medium part wrapper described later.

[0115] Hereinafter, the medium part wrapper will be specifically described as an individual wrapper that wraps the medium part 320.

[0116]

Table 6

[0117] Table 6 is a table showing data related to the thermal conductivity that varies depending on the manufacturing method or characteristics of the medium part wrapper.

[0118] Specifically, the data in Table 6 are the results of manufacturing handmade paper by each method and material and measuring the thermal conductivity at the Korea Institute of Carbon Fusion Technology. Referring to Table 6, it can be seen that when the medium part wrapper is manufactured by the internal addition method, the thermal conductivity of the medium part wrapper is significantly lower than that when it is manufactured by the combined paper method.

[0119] In order to incorporate metal into paper, the metal powder must float in water together with the pulp. However, due to the high specific gravity of the metal, it is not well dispersed in water, resulting in layer separation, and there is a limit where incorporation cannot be achieved well at a high ratio of 50% or more. Also, even if the metal powder is successfully incorporated into the paper, it cannot be incorporated at 50% or more based on the weight of a general wrapper (toilet paper). However, in order for the lattice vibration (phonon vibration), which is the heat transfer mechanism, to effectively occur in the medium part wrapper, a 50% incorporation rate is insufficient, and thus no meaningful thermal conductivity can be detected regardless of the type of metal incorporated into the paper.

[0120] On the other hand, referring to Table 6, when incorporating activated carbon fiber (ACF) into paper, there are significant portions where the activated carbon fibers are intertwined with each other, and there is an effect that the thermal conductivity significantly increases compared to the incorporation ratio. When using the method of laminating metal and paper (laminated paper), it can be seen that the thermal conductivity of the medium part wrapper is relatively higher than any of the methods described above. Also, for the same metal, the thicker the thickness, and for the same thickness, the higher the thermal conductivity of the metal, the higher the heat transfer efficiency transmitted to the medium part. In Table 6, when manufacturing the medium part wrapper by the lamination method using copper with a thickness of 20 μm, it showed excellent thermal conductivity compared to the medium part wrappers manufactured by other methods. The wrapper manufactured by the lamination method covers the object so that the metal part is exposed inside and the paper part is exposed outside.

[0121] Also, referring to Table 6, it can be seen that even if the same ratio of activated carbon fiber is incorporated into the paper, if the porosity value of the activated carbon fiber is even higher, the thermal conductivity is even higher. Here, when the porosity value is a percentage ratio, it can be expressed in % (percent), and when it is the porosity diameter, it can be expressed in μm (micrometer).

[0122] The present invention was devised based on the results as shown in Table 6. As an example, the present invention can enhance the efficiency of heat transferred to the medium part 320 by using a medium part wrapper formed of a laminate of a metal having a preset thickness and thermal conductivity and paper. According to the present invention, by using a wrapper manufactured by laminating a metal on paper as the medium part wrapper, the heat energy of the heater is effectively transferred to the medium part 320, and a sufficient amount of atomization can be provided to the user even at the initial performance.

[0123] As another example, the wrapper of the aerosol base part 310 is also a wrapper of the same material as the aforementioned medium part wrapper. That is, the wrapper covering the aerosol base part 310 is also paper laminated with a metal having a preset thickness and thermal conductivity. According to this example, not only the medium part 320, but also the heat energy efficiency of the heater transferred to the aerosol base part 310 is increased, and the aerosol generating device can generate an aerosol that provides a consistent and suitable smoking feeling to the user without having to keep the temperature of the heater high and wasted for a long time.

[0124] FIG. 7 is a drawing showing the result of comparing the temperature rise curve of an existing cigarette and the temperature rise curve of a dual-medium cigarette.

[0125] More specifically, FIG. 7 includes a total of four graphs. Hereinafter, the four graphs will be interpreted in pairs of two and described with reference to FIG. 6.

[0126] First, referring to FIG. 7, when the aerosol base part 310 and the medium part 320 are general wrappers, it can be seen that the temperature of the aerosol base part 310 is formed to be the highest (about 230° C.), and the temperature of the medium part 320 is formed to be the lowest (near a maximum of 140° C.).

[0127] On the other hand, referring to FIG. 7, when the aerosol base material part 310 and the medium part 320 are double aluminum foil wrappers, it can be seen that the temperature of the aerosol base material part 310 converges to about 200° C., and the temperature of the medium part 320 is formed even higher than the temperature when a general wrapper is used. Here, the double aluminum foil wrapper means that the main component of the wrapper made by the paper laminating method according to the present invention is aluminum.

[0128] FIG. 7 schematically shows that when the double-medium cigarette 300 generates an aerosol in such a way that when the aerosol base material part 310 is first heated by receiving heat energy from the external heater 130, the medium part 320 is secondarily heated by its influence, and when the double aluminum foil wrapper is applied to the aerosol base material part 310 and the medium part 320, even if the aerosol base material part 310 receives less heat energy from the heater 130 than when a general wrapper is applied, it is sufficiently heated to heat the medium part 320 together, thereby generating an aerosol. In FIG. 7, the temperature deviation when the double aluminum foil wrapper is applied to the aerosol base material part 310 and the medium part 320 is even smaller than the temperature deviation when a general wrapper is applied to the aerosol base material part 310 and the medium part 320.

[0129] [Number]

[0130] Equation 1 shows the results of FIG. 7 in an equation. In Equation 1, A means the temperature of the aerosol base material part 310 to which the double-layer paper wrapper is applied in a stable state after the heater of the aerosol generating device is sufficiently preheated to be able to generate an aerosol, B means the temperature of the medium part 320 in the same state, and A* and B* respectively mean the temperatures of the aerosol base material part 310 and the medium part 320 to which a general wrapper is applied.

[0131] FIG. 8 is a drawing showing another example of the temperature change curve of the double-medium cigarette when the present invention is applied.

[0132] FIG. 8 is a drawing collectively showing the temperature changes of the aerosol base material part 310 and the medium part 320 when the temperature of the external heater 130 for heating the double-medium cigarette 300 is 260° C. and when it is 220° C. Referring to FIG. 8, it can be seen that the efficiency of the thermal energy transferred to the aerosol base material part 310 and the medium part 320 is maximized according to the present invention, and the temperature of the aerosol base material part 310 rises and then falls repeatedly as it gets closer to the temperature of the heater 130 (260° C. or 220° C.), and the temperature of the medium part 320 also changes accordingly with the temperature change of the aerosol base material part 310.

[0133] FIG. 9 is a drawing showing yet another example of the temperature change curve of the double-medium cigarette when the present invention is applied.

[0134] More specifically, FIG. 9 visually shows the results when the wrappers of the aerosol base material part 310 and the medium part 320 from the double-medium cigarette 300 are made of silver foil (a laminated paper of silver and paper) and copper foil (a laminated paper of copper and paper). Referring to FIG. 9, it can be seen that for the same silver foil, the thicker it is, and the higher the thermal conductivity is regardless of the thickness, the shorter the time it takes to reach the target temperature (180° C.) of the medium part becomes.

[0135] When using aluminum or copper described in Table 6 as the wrappers of the aerosol base material part 310 and the medium part 320 instead of silver or copper described in FIG. 9, the time for the medium part to reach 180° C. becomes even shorter. Table 7 summarizes the results when aluminum and copper are used with different thicknesses.

[0136]

Table 7

[0137] Table 7 shows the results including the preheating time of the heater being 40 seconds. Referring to Table 7, when selecting copper as the metal to be laminated to the wrapper, the target temperature reaching time of the medium part is the shortest. It is expected that the thicker the copper thickness is beyond 10 μm, the shorter this time will be.

[0138]

Table 8

[0139] Table 8 is a table showing the results of analyzing the components of the aerosol generated when the present invention is applied to the dual-medium cigarette 300 as in Table 7. Referring to Table 8, as the thickness of aluminum in the medium part 320 increases, the particulate matter (TPM: Total Particulate Matter) tends to increase. In the case of the copper-laminated wrapper, it can be seen that even if the thickness is thinner than that of the aluminum-laminated wrapper, it shows a higher TPM value.

[0140] During initial preheating, the time for the medium part 320 to reach 100 °C is longer when the aluminum-laminated wrapper is used than when the copper-laminated wrapper is used, and when the aluminum-laminated wrapper is used, the transfer amounts of PG (propylene glycol) and glycerin (Gly) due to initial heat transfer are more. However, since the heat transfer in the horizontal direction is excellent, the time for the end part of the medium part 320 to reach 180 °C is much shorter when the copper-laminated wrapper is used than when the aluminum-laminated wrapper is used. As a result, the transfer amounts of TPM, nicotine, and moisture are more. Overall, it can also be derived from Table 8 that when the copper-laminated wrapper is used, it is more effective than when the aluminum-laminated wrapper is used in terms of increasing the atomization amount.

[0141] According to the present invention, even during the initial puff, an aerosol with a sufficient atomization amount can be provided to the user using the aerosol generating device.

[0142] In addition, if a user smokes through the externally heated aerosol generating device according to the present invention, due to the effect that sufficient heat energy of the heater is transmitted to the aerosol generating substrate, a more suitable smoking experience than when smoking using a conventionally known externally heated aerosol generating device is possible.

[0143] The specific implementations described in the present invention are, as one example, not intended to limit the scope of the present invention in any way. For the sake of brevity of the specification, descriptions of conventional electronic configurations, control systems, software, and other functional aspects of the system may be omitted. Also, the connections or connecting members of the lines between the components illustrated in the drawings exemplarily show functional connections and / or physical or circuit connections, and in an actual device, they may be alternative or shown as additional various functional connections, physical connections, or circuit connections. Further, components that are not necessarily required for the application of the present invention unless specifically mentioned such as "essential" or "importantly".

[0144] The use of the term "the" and similar directive terms in the specification of the present invention (especially in the claims) applies to both singular and plural. Also, when a range is described in the present invention, it includes inventions applying individual values belonging to the range (if there is no contrary description), and is the same as the description of each individual value constituting the range in the detailed description of the invention. Finally, for the steps constituting the method according to the present invention, if there is no clear order described or contrary description, the steps may be performed in an appropriate order. The present invention is not necessarily limited by the described order of the steps. The use of all examples or exemplary terms (e.g., "such as") in the present invention is merely for explaining the present invention in detail, and the scope of the present invention is not limited by the examples or exemplary terms unless limited by the claims. Also, those skilled in the art are also constituted by design conditions and factors within the scope of the claims or their equivalents with various modifications, combinations, and changes added.

Industrial Applicability

[0145] The present invention can be suitably applied to the production of next-generation electronic cigarette devices and cigarettes used in such devices. (Other possible items) [Item 1] A cigarette in which an aerosol is generated from a medium contained in a medium portion through heating, wherein the cigarette includes a medium wrapper surrounding the medium portion, and an outer skin that collectively surrounds the medium portion surrounded by the medium wrapper and the elements excluding the medium portion, wherein the medium wrapper is a laminated paper composed of a metal and paper having a preset thickness and thermal conductivity. [Item 2] The thickness is the cigarette according to Item 1, which is an arbitrarily determined value between 6.3 μm and 30 μm. [Item 3] The cigarette according to Item 1 or 2, wherein the metal is aluminum. [Item 4] The thickness is the cigarette according to any one of Items 1 to 3, which is an arbitrarily determined value between 6 μm and 30 μm. [Item 5] The cigarette according to any one of Items 1 to 4, wherein the metal is copper. [Item 6] A cigarette in which an aerosol is generated from a medium contained in a medium portion through heating, wherein the cigarette includes a medium wrapper surrounding the medium portion, and an outer skin that collectively surrounds the medium portion surrounded by the medium wrapper and the elements excluding the medium portion, wherein the medium wrapper is paper with activated carbon fiber (ACF) added therein cigarette. [Item 7] The paper is The cigarette according to item 6, in which the activated carbon fiber is internally added at an arbitrarily determined ratio within 25% to 50%. [Item 8] The paper is The cigarette according to item 6 or 7, in which the activated carbon fiber is internally added to have a preset porosity value. [Item 9] A cigarette in which an aerosol is generated from an aerosol-forming substrate and a medium contained in an aerosol substrate part and a medium part through heating, The cigarette is A substrate part wrapper surrounding the aerosol substrate part, A medium part wrapper surrounding the medium part, An outer skin that collectively surrounds the aerosol substrate part, the medium part, and the remaining elements respectively surrounded by the substrate part wrapper and the medium part wrapper, The substrate part wrapper and the medium part wrapper are A cigarette composed of a laminated paper of a metal and paper having a preset thickness and thermal conductivity. [Item 10] The thickness is The cigarette according to item 9, which is an arbitrarily determined value between 6.3 μm and 30 μm. [Item 11] The cigarette according to item 9 or 10, in which the metal is aluminum. [Item 12] The thickness is The cigarette according to any one of items 9 to 11, which is an arbitrarily determined value between 6 μm and 30 μm. [Item 13] The cigarette according to any one of items 9 to 12, in which the metal is copper.

Claims

1. An aerosol base part that contains paper containing a moisturizer and generates moisturizer vapor when heated, A medium part that generates nicotine vapor when heated, A base part wrapper surrounding the aerosol base part, A medium part wrapper surrounding the medium part, An outer skin that includes the medium part surrounded by the medium part wrapper and collectively surrounds the elements excluding the medium part, The medium part wrapper and the base part wrapper Are composed of a laminated paper of a metal having a preset thickness and thermal conductivity and paper, The outer skin is coated with a heat conductivity improving substance containing at least one of ceramic, silicon carbide, sodium citrate, potassium citrate, aramid fiber, nanocellulose, and SWNT (Single-Walled Carbon Nanotube), a cigarette.

2. The cigarette according to claim 1, wherein the outer skin, the base part wrapper, and the medium part wrapper are coated with the heat conductivity improving substance.

3. The cigarette according to claim 1, wherein the outer skin is pearl-coated with the heat conductivity improving substance.

4. The aerosol base part is composed of paper containing a moisturizer, the cigarette according to claim 1.

5. When the aerosol mixed with the moisturizer vapor and the nicotine vapor passes through, it is provided with a cooling part that cools the aerosol, and the cooling part is not covered with an individual wrapper, the cigarette according to claim 1.

6. The thickness Is an arbitrarily determined value between 6.3 μm and 30 μm, the cigarette according to claim 1.

7. The thickness Is an arbitrarily determined value between 6 μm and 30 μm, the cigarette according to any one of claims 1 to 6.

8. The metal is aluminum, the cigarette according to claim 1.

9. The metal is copper, the cigarette according to claim 1.

10. An aerosol base part that contains paper containing a moisturizer and generates moisturizer vapor when heated, A medium part that generates nicotine vapor when heated, A base part wrapper surrounding the aerosol base part, A medium part wrapper surrounding the medium part, An outer skin that includes the medium part surrounded by the medium part wrapper and collectively surrounds the elements excluding the medium part, The medium part wrapper and the base material part wrapper are papers with activated carbon fibers (ACF: Activated Carbon Fiber) added therein, and the outer skin is a cigarette coated with a heat conductivity improving substance containing at least one of ceramic, silicon carbide, sodium citrate, potassium citrate, aramid fiber, nanocellulose, and SWNT (Single-Walled Carbon Nanotube).

11. When an aerosol in which the moisturizing agent vapor and the nicotine vapor are mixed passes through, it is provided with a cooling part for cooling the aerosol, The cigarette according to claim 10, wherein the cooling part is not covered with an individual wrapper.

12. The paper is the cigarette according to claim 10, in which the activated carbon fibers are added at an arbitrarily determined ratio within 25% to 50%.

13. The paper is the cigarette according to claim 10, in which the activated carbon fibers are added to have a preset porosity value.

14. A cigarette according to claim 1, and an aerosol generating device including a heater that directly heats the aerosol base material part of the cigarette from the side surface of the cigarette and does not directly heat the medium part.

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