A smoking article comprising lyocell tow

Abstract

A smoking article is provided. The smoking article includes a first portion including an aerosol generating substrate impregnated with an aerosol generating element, a second portion including a tobacco element, a third portion including a cooling element, and a fourth portion including a filter element, the first portion, the second portion, the third portion, and the fourth portion being arranged in sequence along a length direction of the smoking article, the third portion including a lyocell tow including a plurality of lyocell fibers.

Description

Technical Field

[0001] This invention relates to a smoking article in which lyocell tow is applied to the cooling element of the smoking article to prevent the cooling element from melting due to the high temperature applied to heat the smoking article, thereby providing the user with an improved smoking experience. Background Technology

[0002] In smoking products, the migration of tobacco components (e.g., nicotine, tar) and the generation of vapor (mist) significantly impact the user's smoking experience. Typically, smoking products operate as follows: a device heats the cigarette to a high temperature of approximately 150°C to 300°C, and this heat is transferred to the medium. As the temperature of the medium rises, tobacco components such as nicotine migrate smoothly. During this process, substances such as glycerin are heated and vaporized, allowing the tobacco components contained within the vapor to be inhaled by the user. However, if the device's set temperature is below the boiling point of glycerin, vaporization becomes difficult, thus limiting the migration of tobacco components.

[0003] To address this issue, the following method has been used in the past: to incorporate a cooling section (a portion of the filter) into the smoking product to reduce the discomfort experienced by the user due to the high temperature of the smoke during inhalation.

[0004] In the past, when cellulose acetate (CA) tow was used in the cooling section, the CA tow would melt or deform and re-solidify at temperatures above about 70°C. This phenomenon may have hindered the smooth migration of flue gas, produced unpleasant odors, and caused the cooling function to be ineffective.

[0005] Therefore, to improve the performance of smoking products, materials capable of withstanding heating temperatures of approximately 200°C to 300°C are needed to ensure smooth atomization and migration of tobacco components. This material needs to not melt or deform at high temperatures, while effectively cooling or reducing the temperature of the smoke to improve the user's smoking experience. Furthermore, a material is required that minimizes the dilution of tobacco components during cooling, ensuring sufficient delivery of tar and nicotine upon inhalation. Summary of the Invention

[0006] Technical issues The problem to be solved by the present invention is to provide a smoking article comprising: a first part including an aerosol generating substrate impregnated with an aerosol generating element; a second part including a tobacco element; a third part including a cooling element; and a fourth part including a filter element, wherein the third part is configured as a lyocell bundle composed of a plurality of lyocell fibers, thereby preventing or minimizing deformation caused by heat transferred from a heater heating the smoking article or from aerosol generated within the smoking article through the excellent heat resistance of the lyocell bundle.

[0007] Another problem to be solved by the present invention is to provide a smoking article comprising: a first part, including an aerosol generating substrate impregnated with an aerosol generating element; a second part, including a tobacco element; a third part, including a cooling element; and a fourth part, including a filter element, wherein the third part is configured as a lyocell bundle composed of multiple lyocell fibers, thereby effectively reducing the amount of water transferred during smoking through the excellent hydrophilicity of the lyocell bundle, thereby reducing the heat felt by the user and maximizing the cooling effect.

[0008] Another problem to be solved by the present invention is to provide a smoking article in which the cooling element comprises a tow of lyocell fibers and an adhesive, wherein the adhesive imparts appropriate stiffness to the lyocell fibers, so that the cooling element can stably maintain its shape despite being a tubular structure composed of lyocell fibers.

[0009] The technical problem of this invention is not limited to the technical problem described above. Through the following description, those skilled in the art can clearly understand other technical problems not mentioned.

[0010] Solution to the problem A smoking article according to one aspect of this application for solving the aforementioned problem may include: a first part comprising an aerosol generating substrate impregnated with an aerosol generating element; a second part comprising a tobacco element; a third part comprising a cooling element; and a fourth part comprising a filter element, wherein the first part, the second part, the third part, and the fourth part are arranged sequentially along the length of the smoking article, and the third part may include a lyocell tow comprising a plurality of lyocell fibers.

[0011] In some embodiments, the lyocell bundle of the third portion may have a hollow tubular structure formed inside.

[0012] In some embodiments, the third portion may further include at least one adhesive dispersed in the plurality of said lyocell bundles.

[0013] In some embodiments, the adhesive may include at least one of cellulose adhesives, vinyl adhesives, polyester adhesives, dextrin adhesives, and starch adhesives.

[0014] In some implementations, the inner diameter of the third part can be 10% to 90% of the outer diameter of the third part.

[0015] In some embodiments, the outer diameter of the third portion may be 6 mm to 10 mm.

[0016] In some embodiments, the inner diameter of the third part can be 2 mm to 6 mm, and the inner diameter of the third part is smaller than the outer diameter.

[0017] In some embodiments, the outer diameter of the third portion is 6 mm to 10 mm, and the inner diameter of the third portion is 2 mm to 6 mm. The inner diameter of the third portion is smaller than its outer diameter.

[0018] In some embodiments, the inner diameter of the third part can be 10% to 90% of the outer diameter of the third part, the outer diameter of the third part can be 6mm to 10mm, and the inner diameter of the third part can be 2mm to 6mm.

[0019] In some embodiments, the fourth portion may include at least one of cellulose acetate and lyocell.

[0020] In some embodiments, the aerosol generating element may include at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol.

[0021] In another aspect of this application, a system is provided that includes the smoking article and an aerosol generating apparatus for applying the smoking article.

[0022] In another aspect of this application, a method for manufacturing the smoking article is provided.

[0023] The effects of the invention A smoking article according to one embodiment includes: a first part comprising an aerosol generating substrate impregnated with an aerosol generating element; a second part comprising a tobacco element; a third part comprising a cooling element; and a fourth part comprising a filter element, wherein the third part is configured as a lyocell bundle composed of a plurality of lyocell fibers, thereby preventing or minimizing deformation caused by heat transferred from a heater heating the smoking article or from aerosols generated within the smoking article due to the excellent heat resistance of the lyocell bundle.

[0024] In addition, the smoking product includes: a first part, including an aerosol generating substrate impregnated with an aerosol generating element; a second part, including a tobacco element; a third part, including a cooling element; and a fourth part, including a filter element, wherein the cooling element is configured as a lyocell bundle composed of multiple lyocell fibers, thereby effectively reducing the amount of water transferred during smoking by utilizing the superior hydrophilic properties of the lyocell bundle compared to cellulose acetate bundles, thereby reducing the heat felt by the user and maximizing the cooling effect.

[0025] Furthermore, according to one embodiment of the smoking article, a cooling element comprising a lyocell tow consisting of a plurality of lyocell fibers and at least one adhesive imparts appropriate stiffness to the lyocell tow using the at least one adhesive. Thus, although the cooling element (third part) is a tubular structure composed of lyocell tow, it can stably maintain its shape. By stably maintaining its shape, deformation of the cooling element (third part) during storage and / or smoking of the smoking article can be prevented, thereby preventing a decline in the quality of the smoking experience.

[0026] The effects of the technical concept of this disclosure are not limited to those described above. Other effects not mentioned will be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0027] Figures 1 to 4 The figure shows an example of inserting an aerosol-generating article into an aerosol generating apparatus.

[0028] Figure 5 A diagram illustrating a smoking article according to an embodiment.

[0029] Figure 6 To take photographs of the third part (cooling element) of Example 1 and the third part (cooling element) of Comparative Example 2, wherein, Figure 6 Part (a) is a photograph of the third part (cooling element) of Comparative Example 1 and Example 1 taken before the experiment (before smoking). Figure 6 Part (b) is a photograph of the third part (cooling element) of Comparative Example 1 and Example 1 taken after the experiment (after smoking). Detailed Implementation

[0030] The preferred embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. The advantages and features of this disclosure, as well as the methods for implementing them, will become apparent from the accompanying drawings and the embodiments described in detail below. However, the technical concept of this disclosure is not limited to the embodiments described below, and can be implemented in various different forms. The following embodiments are only intended to ensure that this disclosure is fully disclosed so that those skilled in the art to which this disclosure pertains can fully understand the scope of this disclosure. The technical concept of this disclosure is defined by the scope of the claims of this disclosure.

[0031] When adding reference numerals to components in all the accompanying drawings, it should be noted that the same reference numerals refer to the same components, even if they are shown in different drawings. Furthermore, in the process of describing this disclosure, detailed descriptions of the relevant prior art components or functions may be omitted if it is believed that such detailed descriptions would obscure the gist of this disclosure.

[0032] Unless otherwise specified, all terms (including technical and scientific terms) used in this specification are to be used in a manner that is commonly understood by one of ordinary skill in the art to which this disclosure pertains. Furthermore, commonly used terms that are defined in dictionaries are not to be ideally or over-interpreted without explicit specific definitions. The terminology used in the following embodiments is for illustrative purposes only and is not intended to limit the scope of this disclosure. In the following embodiments, unless otherwise specified, singular nouns also include plural forms.

[0033] Furthermore, in describing the components of this disclosure, terms such as first, second, A, B, (a), (b) may be used. These terms are used only to distinguish a component from other components, and the nature, order, or sequence of the related components is not limited by these terms. It should be understood that if a component is described as "connected," "combined," or "linked" to another component, it may mean that the component is not only directly "connected," "combined," or "linked" to another component, but also indirectly "connected," "combined," or "linked" via a third component.

[0034] The terms “comprising” and / or “including” as used in this disclosure specify the presence of the described components, steps, operations and / or elements, but do not exclude the presence or addition of one or more other components, steps, operations and / or elements.

[0035] First, some terms used in this specification will be explained.

[0036] In this specification, "smoking article" can refer to any smokeable article or any article that provides a smoking experience, regardless of whether it is based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. For example, smoking articles can include smokeable articles such as cigarettes, cigars, and cigarillos.

[0037] In this specification, "smoking material" can refer to any type of substance that can be used in smoking products.

[0038] In this specification, the term "user" may be used interchangeably with "consumer".

[0039] In this specification, "upstream" or "upstream direction" can refer to the direction away from the smoker's mouth, while "downstream" or "downstream direction" can refer to the direction closer to the smoker's mouth.

[0040] In this specification, "longitudinal direction" can refer to the direction corresponding to the longitudinal axis of the smoking product. The "longitudinal axis" of the smoking product can refer to an imaginary line extending along the main longitudinal direction of the smoking product. This axis typically extends from one end of the smoking product (e.g., the end of the mouthpiece or filter) to the other end (e.g., the combustion end or heat source end).

[0041] In this specification, the term "Lycell filter" refers to a filter containing or composed of Lycell filaments.

[0042] In this specification, "lyocell bundle" includes or is composed of multiple lyocell fibers. In some embodiments, a lyocell bundle refers to a bundle formed by cross-connecting adjacent lyocell fibers.

[0043] In this specification, "lyocell fiber" may refer to a fiber made from lyocell cellulose. In particular, lyocell fiber may be a fiber made from cellulose derived or primarily derived from wood pulp, especially a semi-synthetic fiber.

[0044] In this specification, "irregular cross section" is defined as a shape whose cross section is not circular but includes multiple protrusions. For example, a cross section having multiple protrusions branching from and / or extending from the center of its cross section can be called an irregular cross section. Here, "protrusion" may refer to a distinct and extended segment or arm extending outward from the central core or joint of the Lyocell fiber cross section.

[0045] In some embodiments, lyocell fibers may have a Y-shaped cross-section including three protrusions branching from and / or extending from the center of the cross-section, a cross-shaped cross-section including four protrusions, and / or a star-shaped cross-section including five or more protrusions, or an O-shaped cross-section, but are not limited thereto.

[0046] In some embodiments, the lyocell fiber may include three or more protrusions that branch from the center and / or the center of the cross section and / or extend therefrom.

[0047] In some embodiments, for use in cigarette filters, the lyocell fibers contained in the lyocell tow may have a Y-shaped cross-section.

[0048] In this specification, "hollow" can refer to a channel that extends along the length direction.

[0049] In this specification, "consisting of an element..." can mean that the element is included or constitutes the element.

[0050] In this specification, the term "tubular rod" as a filter rod can refer to a filter rod with a hollow interior, while a filter rod without a hollow interior can be called a "cylindrical rod".

[0051] In this specification, the term "recess-type bar" as a filter bar can refer to a filter bar that includes one or more pores.

[0052] In this specification, hardness refers to a numerical value representing the degree to which the diameter of the third part is maintained when pressed with a horizontal force perpendicular to the length of the third part. This value can be a percentage of the ratio between the diameter of the third part after the force is applied and the diameter of the third part before the force is applied. For example, the hardness (%) of the third part can be calculated using the following formula: (Da) / D × 100%, where D is the diameter of the third part and a is the distance the third part descends (i.e., the third part is pressed down) under the action of a 300g weight. Measurements required to calculate the hardness can be obtained using, for example, Filtrona's DHT 200. TM The equipment is obtained. When measuring hardness, the force applied to the object in the third part can be set to be equivalent to the force actually applied by the user to the smoking product (e.g., holding it).

[0053] According to one aspect of the invention, the filter of a smoking article can capture at least a portion of the smoke components generated during the use of the smoking article. In some embodiments, the filter of the smoking article can capture particulate matter (total particulate matter, hereinafter referred to as "TPM") comprising at least a portion of at least one of nicotine (hereinafter referred to as "Nic"), tar (hereinafter referred to as "PG"), and glycerin (hereinafter referred to as "Gly") contained in the smoke components generated when smoking the smoking article.

[0054] In this specification, "suction resistance" refers to the static pressure difference between the two ends of the sample when airflow passes through it. In this specification, "PDC" refers to the suction resistance value measured with the media section open, the filter nozzle perforation closed, and external air prevented from entering, while "PDO" refers to the suction resistance value measured with the media section open, the filter nozzle perforation not closed, and external air allowed to enter. For example, suction resistance can be measured using the method specified in ISO standard 6565:2015. According to ISO standard 6565:2015, suction resistance is the static pressure difference between the two ends of the sample measured under normal conditions (22±2℃, relative humidity 60±5%) when airflow exits from the outlet end at a volumetric flow rate of 17.5 mm / s.

[0055] In this specification, the "ventilation rate" (hereinafter referred to as "Vent") of a smoking product can be defined as the percentage ratio between the total volumetric airflow (e.g., ml / s) entering the unburned or unheated smoking product without passing through the front end region (i.e., the upstream end in the length direction) and the total volumetric airflow (e.g., ml / s) exiting the smoking product (i.e., the downstream end in the length direction). For example, the air dilution rate can be measured according to ISO 9512:2019. For example, the total volumetric airflow entering the unburned or unheated smoking product without passing through the front end region can be the total volumetric airflow entering along a direction perpendicular to the length of the smoking product. For example, the total volumetric airflow entering the unburned or unheated smoking product without passing through the front end region can be the total volumetric airflow entering the smoking product through the cigarette paper.

[0056] In this specification, organic acid refers to the general term for organic compounds that are acidic.

[0057] In some embodiments, room temperature may refer to 20°C to 25°C.

[0058] In this specification, unless a separate physical quantity is expressed, the percentage of a component and the proportion of a component represent the weight percentage and the weight proportion of the component, respectively.

[0059] In this specification, "puff" can refer to the act of inhaling or introducing air through a smoking article used to generate and inhale smoke or vapor. "Number of puffs" can refer to the total number of inhalation or introduction actions during the use of the smoking article. Alternatively or additionally, the number of puffs can represent the maximum number of inhalation or introduction actions that the smoking article can provide before it is fully consumed or its function is discontinued.

[0060] In this specification, the HC (Health Canada) conditions can be defined as a puff volume of 55 mL per aspiration, a puff frequency of once every 30 seconds, and a puff duration of 2 seconds. Specifically, the HC conditions can be measured with the perforated portion of the filter tip sealed. When measuring under HC conditions, the number of aspirations can be up to 9.

[0061] The composition of total particulate matter (TPM) in the captured flue gas can be analyzed using gas chromatography-mass spectrometry (GC / MS). For example, for tar or nicotine, a Cambridge filter pad (CFP) for capturing the flue gas components can be soaked in isopropyl alcohol (IPA) for a period of time (e.g., 20 minutes to 16 hours), while for PG (propylene glycol) and Gly (glycerol), the Cambridge filter pad (CFP) can be soaked in methanol for a period of time (e.g., 2 hours to 16 hours). After processing with a shaking device and removing impurities through a polytetrafluoroethylene (PTFE) syringe filter, the composition of total particulate matter (TPM) in the captured flue gas can be measured using a GC / MS device. In particular, the soaking time can be more than 20 minutes for tar or nicotine, and more than 2 hours for PG and Gly.

[0062] The GC / MS device may be, for example, a measurement device from Agilent Technologies.

[0063] In the following, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0064] In this specification, "tobacco element" refers to an element containing tobacco material.

[0065] In this specification, "tobacco material" means any material containing components derived from tobacco leaves.

[0066] In this specification, "cooling element" refers to an element that cools a material. For example, a cooling element can cool aerosols generated by an aerosol generating element or a tobacco element.

[0067] In this specification, "filter element" refers to an element that contains filter material. For example, a filter element may include multiple fiber bundles.

[0068] Figures 1 to 4 The figure shows an example of inserting an aerosol-generating article into an aerosol generating apparatus.

[0069] First, refer to Figures 1 to 3 A detailed description of the aerosol generating device is provided.

[0070] Reference Figure 1 The aerosol generating device 100 includes a battery 110, a control unit 120, and a heater 130. (See reference...) Figure 2 and Figure 3 The aerosol generating apparatus 100 also includes a vaporizer 140. In particular, the smoking article 200 can be inserted into the internal space of the aerosol generating apparatus 100.

[0071] Figures 1 to 3 The aerosol generating apparatus 100 shown contains components relevant to this embodiment. Therefore, those skilled in the art related to this embodiment will understand that, in addition to… Figures 1 to 3 In addition to the components shown, other general-purpose components may also be included in the aerosol generating apparatus 100.

[0072] Furthermore, despite Figure 2 and Figure 3 The aerosol generating apparatus 100 shown includes a heater 130, but the heater 130 may be omitted if necessary. In some embodiments, the aerosol generating apparatus 100 does not include a heater. In some embodiments, the battery 110, control unit 120, and vaporizer 140 are arranged sequentially along the length of the smoking article 200, i.e., in a row.

[0073] exist Figure 1 The image shows the battery 110, control unit 120, and heater 130 arranged in a row. In some embodiments, the battery 110, control unit 120, and heater 130 are arranged sequentially along the length of the smoking article 200. Furthermore, Figure 2The battery 110, control unit 120, vaporizer 140, and heater 130 are arranged in a row along the length of the smoking product 200. Additionally, Figure 3 The vaporizer 140 and heater 130 are shown in parallel arrangement. However, the internal structure of the aerosol generating device 100 is not limited to this. Figures 1 to 3 The structure shown. In other words, depending on the design of the aerosol generating device 100, the arrangement of the battery 110, control unit 120, heater 130 and vaporizer 140 can be different.

[0074] When the smoking article 200 is inserted into the aerosol generating device 100, the aerosol generating device 100 can generate aerosol from the smoking article 200 and / or the vaporizer 140 by activating the heater 130 and / or the vaporizer 140. The aerosol generated by the heater 130 and / or the vaporizer 140 is delivered to the user through the smoking article 200.

[0075] If necessary, the aerosol generating device 100 can heat the heater 130 even if the smoking product 200 is not inserted into the aerosol generating device 100.

[0076] Battery 110 supplies power to operate the aerosol generating apparatus 100. For example, battery 110 can supply power for heating the heater 130 and / or the vaporizer 140, and for operating the control unit 120. In particular, battery 110 can also provide power for operating displays, sensors, motors, etc., installed on the aerosol generating apparatus 100.

[0077] The control unit 120 provides overall control over the operation of the aerosol generating device 100. Specifically, the control unit 120 controls not only the operation of the battery 110, heater 130, and vaporizer 140, but also the operation of other components included in the aerosol generating device 100. Furthermore, the control unit 120 can confirm the status of each component of the aerosol generating device 100, thereby determining whether the aerosol generating device 100 is in an operational state.

[0078] The control unit 120 includes at least one processor. The processor can be implemented using multiple logic gate arrays, or it can be implemented using a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. Furthermore, those skilled in the art will understand that the control unit can be implemented as other types of hardware.

[0079] The heater 130 can be heated by electricity supplied from the battery 110. For example, when the smoking article 200 is inserted into the aerosol generating device 100, the heater 130 can be located outside the smoking article 200. Therefore, the heated heater 130 can raise the temperature of the aerosol generating substance inside the smoking article 200.

[0080] Heater 130 may be a resistance heater. For example, heater 130 may include a conductive rail through which current flows, and heater 130 is heated. However, heater 130 is not limited to the example described; any heater capable of heating to a desired temperature may be applicable. Here, the desired temperature may be preset in the aerosol generating device 100, or it may be set by the user.

[0081] On the other hand, as another example, heater 130 can be an induction heating heater. Specifically, heater 130 may include a conductive coil for heating the aerosol generating device by induction heating, and the aerosol generating device may include an inductor capable of being heated by the induction heating heater.

[0082] For example, heater 130 may include tubular heating elements, plate heating elements, needle heating elements and / or rod heating elements, which, depending on the shape of the heating elements, can heat the interior and / or exterior of the smoking article 200.

[0083] In particular, a plurality of heaters 130 may be arranged in the aerosol generating apparatus 100. In this case, the plurality of heaters 130 may be arranged either inserted inside the smoking article 200 or arranged outside the smoking article 200. Specifically, a portion of the plurality of heaters 130 may be arranged inserted inside the smoking article 200, while the remaining heaters may be arranged outside the smoking article 200. In some embodiments, the heaters 130 may heat both the interior and exterior of the smoking article 200. Furthermore, the shape of the heaters 130 is not limited to... Figures 1 to 3 The shape shown can be manufactured in various shapes. In some embodiments, heater 130 may include a resistance heater and an induction heater.

[0084] The vaporizer 140 can generate an aerosol by heating a liquid composition, and the generated aerosol can be delivered to a user through a smoking article 200. In other words, the aerosol generated by the vaporizer 140 can move along the airflow path of the aerosol generating device 100, and the airflow path can be configured such that the aerosol generated by the vaporizer 140 is delivered to the user through the smoking article 200.

[0085] For example, the vaporizer 140 may include a liquid storage chamber, a liquid delivery device, and a heating element, but is not limited thereto. For example, the liquid storage chamber, the liquid delivery device, and the heating element may be arranged as independent modules in the aerosol generating device 100.

[0086] The liquid reservoir can store a liquid composition. For example, the liquid composition may be a liquid containing tobacco-containing material with volatile tobacco flavoring components, or alternatively or additionally, a liquid containing non-tobacco-containing material. The liquid reservoir may be made detachable from or installable on the vaporizer 140, or may be integrally formed with the vaporizer 140.

[0087] For example, the liquid composition may include water, solvent, ethanol, plant extracts, fragrances, flavorings, and / or vitamin mixtures. Fragrances may include, but are not limited to, menthol, peppermint, spearmint oil, and / or various fruit flavorings. Flavorings may include ingredients capable of providing the user with a variety of aromas and / or flavors. Vitamin mixtures may be, but are not limited to, a mixture of at least one of vitamins A, B, C, and E. In particular, the liquid composition may contain aerosol forming agents such as glycerin and propylene glycol.

[0088] A liquid delivery device can deliver a liquid composition from a storage chamber to a heating element. For example, the liquid delivery device can be a wick made of materials such as cotton fiber, ceramic fiber, glass fiber, or / or porous ceramic, but is not limited to these.

[0089] A heating element is a component used to heat a liquid composition conveyed by a liquid conveying device. For example, a heating element may include, but is not limited to, a hot metal wire, a hot metal plate, and / or a ceramic heater. In particular, the heating element may be made of conductive wire such as a nichrome wire, or may be arranged in a structure wound around the liquid conveying device. The heating element can be heated by an electric current supply, and the liquid composition can be heated by transferring heat to the liquid composition in contact with the heating element. As a result, an aerosol can be generated.

[0090] For example, the vaporizer 140 may be referred to as a cartomizer or atomizer, but is not limited to these terms.

[0091] On the other hand, in addition to the battery 110, control unit 120, heater 130, and vaporizer 140, the aerosol generating device 100 may also include other general components. For example, the aerosol generating device 100 may include a display screen capable of outputting visual information and / or a motor for outputting tactile information. In particular, the aerosol generating device 100 may include at least one sensor (a suction sensor, a temperature sensor, and / or an aerosol generating article insertion detection sensor, etc.). In particular, the aerosol generating device 100 may also be configured to allow external air to flow in or internal gas to be discharged even when the smoking article 200 is inserted.

[0092] Despite Figures 1 to 3Although not shown, the aerosol generating device 100 can also be configured as a system with a separate support. For example, the support can be used to charge the battery 110 of the aerosol generating device 100. Alternatively or additionally, the heater 130 can be heated while the support and the aerosol generating device 100 are combined.

[0093] The smoking article 200 may be similar to a conventional combustible cigarette. For example, the smoking article 200 may be divided into a first part including aerosol-generating substances and a second part including a filter tip, etc. Optionally, the second part of the smoking article 200 may also contain aerosol-generating substances. For example, aerosol-generating substances in the form of particles and / or capsules may be inserted into the first part and optionally into the second part.

[0094] The entire first part can be inserted into the aerosol generating device 100, while the second part can be exposed to the outside. Alternatively, only a portion of the first part can be inserted into the aerosol generating device 100, or the entire first part and a portion of the second part can be inserted into the aerosol generating device 100. The user can inhale the aerosol while holding the second part in their mouth. At this time, aerosol is generated when outside air passes through the first part, and the generated aerosol is delivered to the user's mouth through the second part.

[0095] In some embodiments, external air can be introduced through at least one air passage formed in the aerosol generating device 100. For example, the opening and / or size of the air passage formed in the aerosol generating device 100 can be adjusted by the user. Therefore, the user can adjust the amount of vaporization, the smoking sensation, etc. As another example, external air can be introduced into the interior of the smoking article 200 through at least one hole formed on the surface of the smoking article 200.

[0096] Next, refer to Figure 4 , Figure 4 An example of an aerosol generating apparatus employing an induction heating method is shown.

[0097] Reference Figure 4 The aerosol generating device 100 includes a battery 110, a control unit 120, a coil C, and an inductor S. In particular, the cavity V of the aerosol generating device 100 can accommodate at least a portion of the smoking article 200. Figure 4 The smoking device 200, battery 110, and control unit 120 in the middle can correspond to Figures 1 to 3 The smoking device 200, battery 110, and control unit 120 are included. In particular, the coil C and the inductor S may be included in the heater 130. Therefore, repeated descriptions will be omitted here.

[0098] Figure 4The aerosol generating apparatus 100 shown contains components relevant to this embodiment. Therefore, those skilled in the art will understand that, in addition to... Figure 4 In addition to the components shown, other general-purpose components may also be included in the aerosol generating apparatus 100.

[0099] The coil C can be located around the cavity V. Although in Figure 4 The diagram shows the arrangement of coil C around cavity V, but the invention is not limited thereto.

[0100] When the smoking product 200 is contained in the cavity V of the aerosol generating device 100, the aerosol generating device 100 can supply power to the coil C, causing the coil C to generate a magnetic field. When the magnetic field generated by the coil C penetrates the inductor S, the inductor S can be heated.

[0101] This induction heating phenomenon is based on Faraday's law of electromagnetic induction. Specifically, when the magnetic field within the inductor S changes, an electric field is generated inside the inductor S, causing eddy currents to flow within it. These eddy currents generate heat within the inductor S that is proportional to the current density and the conductor's resistance.

[0102] The inductor S is heated by eddy currents, which in turn heats the aerosol-generating substances within the smoking product 200, thereby generating aerosols. The aerosols generated from these aerosol-generating substances are then delivered to the user through the smoking product 200.

[0103] Battery 110 can provide power to generate a magnetic field in coil C. Control unit 120 can be electrically connected to coil C.

[0104] The coil C can be a conductive coil that generates a magnetic field using electricity supplied by the battery 110. The coil C can be arranged to surround at least a portion of the cavity V. The magnetic field generated by the coil C can be applied to an inductor S arranged at the inner end of the cavity V.

[0105] When the magnetic field generated by coil C passes through inductor S, inductor S is heated and may contain metal and / or carbon. For example, inductor S may contain at least one of ferrite, ferromagnetic alloy, stainless steel, and aluminum.

[0106] The inductor S may comprise at least one of the following: graphite, molybdenum, silicon carbide, niobium, nickel alloy, metal film, ceramics such as zirconia, transition metals such as nickel (Ni) and cobalt (Co), and metalloids such as boron (B) and phosphorus (P). However, the inductor S is not limited to the examples described; any inductor capable of being heated to a desired temperature upon application of a magnetic field is applicable without limitation. Here, the desired temperature may be preset in the aerosol generating apparatus 100, or it may be set by the user.

[0107] When the smoking article 200 is contained in the cavity V of the aerosol generating device 100, the sensor S can be arranged to surround at least a portion of the smoking article 200. Therefore, the heated sensor S can raise the temperature of the aerosol generating substance within the smoking article 200.

[0108] Although Figure 4 The diagram shows an inductor S arranged around at least a portion of an aerosol-generating article, but it is not limited thereto. For example, the inductor S may include a tubular heating element, a plate heating element, a needle heating element, and / or a rod heating element, which, depending on the shape of the heating element, can heat the interior and / or exterior of the smoking article 200.

[0109] In particular, a plurality of sensors S can be arranged in the aerosol generating apparatus 100. In this case, the plurality of sensors S can be arranged outside the smoking article 200 or inserted inside it. Specifically, some of the plurality of sensors S can be arranged to be inserted inside the smoking article 200, while the remaining sensors can be arranged outside the smoking article 200. Furthermore, the shape of the sensors S is not limited to... Figure 4 The shape shown can be made into various shapes.

[0110] Figure 5 A diagram illustrating a smoking article according to an embodiment.

[0111] Reference Figure 5The smoking article 200 may include a first part 210, a second part 220, a third part 230, and a fourth part 240. Specifically, the first part 210, the second part 220, the third part 230, and the fourth part 240 may respectively include an aerosol generating element, a tobacco element, a cooling element, and a filter element. In some embodiments, the first part 210 may contain an aerosol generating substance, the second part 220 may contain tobacco material and may optionally contain more than one humectant, the third part 230 may cool the airflow passing through the first part 210 and the second part 220, and the fourth part 240 may contain filter material. On the other hand, to emphasize the filtering function of the third part 230 and the fourth part 240, the third part 230 may be referred to as a cooling structure 230, and the fourth part 240 may be referred to as a mouthpiece portion 240.

[0112] Reference Figure 5 The first part 210, the second part 220, the third part 230, and the fourth part 240 can be arranged sequentially along the length of the smoking article 200. Here, the length of the smoking article 200 can be the direction in which the smoking article 200 extends. For example, the length of the smoking article 200 can be from the first part 210 toward the fourth part 240. Therefore, aerosol generated from at least one of the first part 210 and the second part 220 can sequentially pass through the first part 210, the second part 220, the third part 230, and the fourth part 240, thereby forming an airflow that allows the smoker to inhale the aerosol from the fourth part 240.

[0113] The first part 210 may include an aerosol generating element. In particular, the first part 210 may include at least one other additive such as a flavoring agent, a humectant, and / or an organic acid, and may include a flavoring liquid containing menthol and / or a humectant. Here, the aerosol generating element may include at least one of, for example, glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. However, this disclosure is not limited to the examples described, and may cover various aerosol generating elements known in the art.

[0114] The first part 210 may include an aerosol generating substrate impregnated with an aerosol generating element. Examples of the aerosol generating substrate may include a rolled (shrunken) sheet, and the aerosol generating element may be included in the first part 210 while impregnated in the rolled sheet. In particular, at least one other additive such as a flavoring agent, humectant, and / or organic acid, and / or a fragrance liquid may be included in the first part 210 while being absorbed by the rolled sheet.

[0115] The rolled sheet can be a sheet made of a polymer material. For example, the polymer material may include at least one of paper, cellulose acetate, and polylactic acid. For example, the rolled sheet may be a paper sheet that does not produce an odor due to heat even when heated at high temperatures. However, the invention is not limited thereto.

[0116] The first portion 210 may extend from the end of the smoking article 200 to a position of approximately 7 mm to approximately 20 mm, and the second portion 220 may extend from the position where the first portion 210 ends to a position of approximately 7 mm to approximately 20 mm. However, these numerical ranges are not necessarily limited thereto, and the lengths of the first portion 210 and the second portion 220, respectively, can be appropriately adjusted within a range easily changed by those skilled in the art. For example, the length of the first portion 210 may be approximately 10 mm, and the length of the second portion may be approximately 12 mm, but is not limited thereto.

[0117] Part 220 may include tobacco elements. Tobacco elements may be specific forms of tobacco material. For example, tobacco elements may be in the form of tobacco slices, tobacco particles, tobacco sheets, tobacco beads, tobacco granules, tobacco powder, and / or tobacco extracts. In particular, tobacco material may include at least one of, for example, tobacco leaves, tobacco veins, expanded tobacco, cut tobacco, reconstituted tobacco, and reconstituted tobacco.

[0118] The third part 230 can cool the airflow passing through the first part 210 and the second part 220. The third part 230 can be made of a biodegradable polymer material and has a cooling function.

[0119] In one embodiment, the third portion 230 may be made of lyocell fibers. In particular, the third portion 230 may be a lyocell filter tip composed of a lyocell bundle comprising multiple lyocell fibers. The third portion 230 may be a tubular structure with a hollow interior. The hollow portion may extend along the length direction of the third portion 230. The hollow portion of the third portion 230 may be located at the center of a cross-section perpendicular to the length direction of the third portion 230 and may be arranged to extend along said length direction. The hollow portion of the third portion 230 may have a coaxial structure. The length and / or diameter of the third portion 230 may vary depending on the shape of the smoking article 200. For example, the length of the third portion 230 may be suitably selected in the range of 7 mm to 20 mm. Preferably, the length of the third portion 230 may be about 12 mm, but is not limited thereto.

[0120] In this invention, the lyocell fiber included in part 230 can be an environmentally friendly fiber made from cellulose extracted from wood pulp. The lyocell bundle can refer to a bundle formed by cross-linking adjacent lyocell fibers.

[0121] In some embodiments, the outer diameter of the third portion 230 may be approximately 6 mm to 10 mm, preferably 6.1 mm to 9 mm, more preferably 6.2 mm to 8 mm, even more preferably 6.3 mm to 7.8 mm, even more preferably 6.4 mm to 7.6 mm, even more preferably 6.6 mm to 7.4 mm, even more preferably 6.8 mm to 7.2 mm, and even more preferably 7 mm. The inner diameter of the third portion 230 (i.e., the diameter of the hollow portion) is smaller than its outer diameter and may take appropriate values ​​in the range of approximately 2 mm to 6 mm, preferably 2.1 mm to 5.5 mm, more preferably 2.2 mm to 5 mm, even more preferably 2.3 mm to 4.5 mm, and even more preferably 2.4 mm to 4 mm, but is not limited thereto. Preferably, the inner diameter of the third part 230 can be 2.5mm to 3.0mm or 3.5mm to 4.0mm, more preferably, it can be 2.7mm to 2.9mm or 3.7mm to 3.9mm, more preferably, it can be 2.8mm or 3.8mm, etc., but is not limited thereto.

[0122] In some embodiments, the inner diameter of the third portion 230 can be 10% to 90% of the outer diameter of the third portion 230, preferably 20% to 80%, more preferably 25% to 75%, and even more preferably 30% to 70% or 35% to 75%, but is not limited thereto.

[0123] In some embodiments, lyocell fibers may have an irregular cross-section. An irregular cross-section is defined as a shape whose cross-section is not circular but includes multiple protrusions. For example, a cross-section with multiple protrusions extending from the center can be referred to as an irregular cross-section.

[0124] In some embodiments, lyocell fibers may have a Y-shaped cross section including three protrusions branching from the center, a cross-shaped cross section including four protrusions, and / or a star-shaped cross section including five or more protrusions, or an O-shaped cross section, but the invention is not limited thereto.

[0125] In some embodiments, the third portion 230 may further include an adhesive. The adhesive may be dispersed within the lyocell bundle constituting the third portion 230. Specifically, the adhesive may be distributed over the entire area of ​​the lyocell bundle constituting the third portion 230. The adhesive serves to impart appropriate stiffness to the third portion 230 by bonding the plurality of lyocell fibers constituting the lyocell bundle. As mentioned above, unlike cellulose acetate, lyocell does not contain plasticizing substances that harden lyocell fibers; therefore, by adding an adhesive, appropriate stiffness can be imparted to the third portion 230.

[0126] In some embodiments, the adhesive may include at least one of cellulose adhesives, vinyl adhesives, polyester adhesives, dextrin adhesives, starch adhesives, guar gum, xanthan gum, gum arabic, carrageenan, konjac, and agar, but is not limited thereto; any substance capable of binding multiple lyocell fibers and imparting appropriate stiffness may be used. For example, examples of cellulose adhesives may include hydroxypropyl methylcellulose (HPMC), ethyl cellulose (EC), methyl cellulose (MC), carboxymethyl cellulose (CMC), etc.; examples of vinyl adhesives may include polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), ethylene-vinyl acetate copolymer (EVAc), etc.; polyester adhesives may be polyesters comprising at least one of the group consisting of alkylene, arylalkylene, and heteroarylalkylene atoms having 5 to 12 carbon atoms; dextrin adhesives may include dextrin, etc.; starch adhesives may include starch (e.g., cassava, corn, wheat, potato, sweet potato, etc.), cationic starch, and / or esterified starch, etc., but are not limited thereto.

[0127] In some embodiments, the adhesive may include at least one of the following: polyester, hydroxypropyl methylcellulose (HPMC), ethyl cellulose (EC), methyl cellulose (MC), carboxymethyl cellulose (CMC), polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), ethylene-vinyl acetate copolymer (EVAc), dextrin, tapioca starch, corn starch, wheat starch, potato starch, sweet potato starch, cationic starch, esterified starch, guar gum, xanthan gum, gum arabic, carrageenan, konjac, and agar.

[0128] In some embodiments, the adhesive may be added during the manufacturing process of the third part 230 in a manner dispersed within the lyocell tow. For example, in the manufacturing process of the third part 230, the adhesive may be added to the interior of the lyocell tow by winding the lyocell tow around the heating rod to enclose it internally, or by spraying the adhesive onto the outer circumferential surface of the cylindrical lyocell tow formed as described above. Alternatively or additionally, the adhesive may be added to the interior of the lyocell tow from the inner surface of the lyocell tow formed by heating the heating rod by winding it internally, but the manufacturing method of the third part 230 is not limited to this.

[0129] In some embodiments, the hardness of the third portion 230, comprising a lyocell tow dispersed with an adhesive, can be 60% to 99%, preferably 70% to 98.5%, more preferably 75% to 98%, even more preferably 80% to 97.5%, and even more preferably 85% to 97%, but is not limited thereto. The hardness of the third portion 230 refers to a numerical value representing the degree to which the diameter of the third portion 230 is maintained when pressed with a horizontal force perpendicular to the length direction of the third portion 230. This value can be a percentage of the ratio between the diameter of the third portion 230 after the applied force and the diameter of the third portion 230 before the applied force. By giving the third portion 230 a hardness within the aforementioned range, although the third portion 230 is a tubular structure composed of lyocell tow, it can stably maintain its shape. Furthermore, due to the stable shape retention of the third portion 230, deformation of the third portion 230 during storage and / or smoking of the smoking article 200 can be prevented, thus avoiding a reduction in the quality of the smoking experience.

[0130] The smoking article 200 according to the present invention, by having the third part 230 composed of lyocell tow and having a hollow tubular structure inside, effectively reduces the amount of water transferred during smoking due to the superior hydrophilicity of lyocell tow compared to cellulose acetate tow, thereby reducing the heat sensation felt by the user and maximizing the cooling effect. Furthermore, compared to paper tubes, it does not produce odors caused by heating, thus improving the quality of smoking.

[0131] Furthermore, the excellent heat resistance of the lyocell filaments can prevent or minimize deformation of the third part 230 caused by heat transferred from the heater of the heated smoking article 200 or aerosol generated within the smoking article 200.

[0132] The fourth part 240 may include a filter element. For example, the fourth part 240 may be a cellulose acetate filter tip. On the other hand, there is no limitation on the shape of the fourth part 240. For example, the fourth part 240 may be a cylindrical rod or a tubular rod with a hollow interior. In particular, the fourth part 240 may be a concave rod. If the fourth part 240 is composed of multiple segments, at least one of the multiple segments may be made to have a different shape from the other segments. The length of the fourth part 240 may be suitably selected in the range of 7 mm to 20 mm. Preferably, the length of the fourth part 240 may be about 14 mm, but is not limited thereto.

[0133] The fourth part 240 can be scented. In some embodiments, a fragrance liquid can be sprayed onto the fourth part 240, or alternatively or additionally, individual fibers coated with the fragrance liquid can be inserted into the interior of the fourth part 240.

[0134] The smoking article 200 may further include wrapping paper 250 covering at least a portion of the first portion 210 to the fourth portion 240. In particular, the smoking article 200 may include wrapping paper 250 covering all of the first portion 210 to the fourth portion 240. The wrapping paper 250 may be located as the outermost layer of the smoking article 200, and the wrapping paper 250 may be a single wrapping paper or a combination of multiple wrapping papers.

[0135] In some embodiments, the first portion 210 of the smoking article 200 may include a curled, pleated sheet containing aerosol-generating substances, the second portion 220 may include reconstituted tobacco leaves as tobacco material and glycerin as a humectant, the third portion 230 may include a tow of lyocell fibers containing a plurality of lyocell fibers, and the fourth portion 240 may include cellulose acetate (CA) fibers, but this disclosure is not necessarily limited thereto.

[0136] Hereinafter, the construction and effects of the present invention will be described in more detail through embodiments and comparative examples. However, these embodiments are provided only to exemplify one or more specific instances, and the scope of the present invention is not limited by these embodiments.

[0137] Example 1 A product with Lyocell material was manufactured. Figure 5 The third part of the structure shown. Specifically, a third part with an inner diameter of approximately 3.8 mm and a circumference of 22.6 mm was manufactured by forming a cylindrical lyocell bundle around a heating rod using a heating rod, and by injecting a dextrin-based binder (dextrin) into the lyocell bundle from the heating rod through the inner circumference of the bundle. In the following text, as... Figure 4As shown in the smoking product 200, a heated cigarette (as the smoking product of Example 1) was manufactured having a first part made of paper with a length of 10 mm and including an aerosol generating element, a second part containing tobacco material with a length of 12 mm, a third part of Example 1 with a length of 12 mm, and a fourth part made of cellulose acetate with a length of 14 mm. The draw resistance was measured, and the results are shown in Table 1 below.

[0138] In this specification, unless otherwise stated, PDC refers to the suction resistance value measured with the perforation formed in any one of the second part open, the first part, the third part, and the fourth part closed and preventing the entry of external air, while PDO refers to the suction resistance value measured with the second part open, the perforation formed in any one of the first part, the third part, and the fourth part not closed and allowing the entry of external air.

[0139] Comparative Example 1 Except for the use of cellulose acetate material to manufacture the third part, the heated cigarette (as a smoking product of Comparative Example 1) was manufactured in the same manner as in Example 1, and the draw resistance was measured. The results are shown in Table 1 below.

[0140] Experimental Example 1. Evaluation of Physical Properties To confirm the changes in the physical properties of the smoking products based on the third part made of different materials, experiments were conducted to measure the physical properties of the smoking products according to Comparative Example 1 and Example 1. In particular, the weight, circumference, and ventilation rate of the smoking products were measured, and the measurement results are recorded in Table 1 below.

[0141] Table 1

[0142] (In Table 1 above, Vent represents the ventilation rate (VR).) As shown in Table 1 above, smoking products with a third part consisting of lyocell tow and cellulose acetate respectively exhibit similar physical properties, and their heat resistance, cooling-related ventilation rate (VR) and draw resistance are similar during smoking.

[0143] Experimental Example 2. Moisture migration (heat reduction effect) of smoking products based on the materials of Part 3 (cooling element). To compare the amount of moisture migration in the mainstream smoke of smoking products with a third part made of different materials, the second part (tobacco element) of the smoking products according to Comparative Example 1 and Example 1 was heated by external heating at a heating temperature of 190°C to 280°C, and the moisture content in the generated smoke (as the amount of moisture migration) was measured. The results are shown in Table 2 below.

[0144] In particular, the experiment was conducted on the smoking products according to Comparative Example 1 and Example 1 in a smoking room with an internal temperature of about 22±2°C and an internal relative humidity of about 60±5% (especially with a temperature of about 21.9°C and a relative humidity of 64.3%), under HC conditions (smoke volume: 55ml / puff frequency: 30 seconds / puff duration: 2 seconds / puff count: 9 times), and the generated smoke was captured by a Cambridge filter (i.e., Cambridge filter pad, CFP), and the moisture content (moisture migration) captured in the Cambridge filter (CFP) was measured. The results are shown in Table 2 below.

[0145] Table 2

[0146] Referring to Tables 1 and 2 above, it can be seen that the smoking products of Example 1 and Comparative Example 1 have similar physical properties, but the smoking product of Example 1 has a lower moisture content in its mainstream smoke compared to the smoking product of Comparative Example 1. In other words, the smoking product of Example 1 has a lower amount of moisture migration in its mainstream smoke compared to the smoking product of Comparative Example 1. Therefore, the heat sensation (i.e., burning sensation) transmitted to the user through the mainstream smoke during smoking is lower in the smoking product of Example 1, whose third part is made of lyocell material, than in the smoking product of Comparative Example 1, whose third part is made of cellulose acetate. It can be presumed that this is because lyocell material has superior hydrophilicity compared to cellulose acetate material, and the moisture generated during smoking is absorbed by the lyocell tow that makes up the third part when it passes through the third part. That is to say, it can be confirmed that the smoking product of Example 1, whose third part is made of lyocell material, is superior in reducing the heat sensation felt by the smoker during smoking compared to the smoking product of Comparative Example 1, whose third part is made of cellulose acetate material.

[0147] Experimental Example 3. Evaluation of the thermal deformation of materials based on Part 3. To compare the material deformation caused by heat generated during heating of the tobacco element (second part) of a smoking article with a third part made of different materials, the second part of the smoking articles according to Comparative Example 1 and Example 1 was heated in the same manner as in Experimental Example 2 (i.e., heated to a heating temperature of 190°C to 280°C using external heating). The smoking articles were then disassembled and photographs of the third part were taken, as shown below. Figure 6 As shown. Figure 6 Part (a) is a photograph of the third part of Comparative Example 1 and Example 1 taken before the experiment (before smoking). Figure 6 In part (a), the left side is the third part of Comparative Example 1. Figure 6 In part (a), the right side is the third part of Example 1. Furthermore, Figure 6 Part (b) consists of photographs taken after the experiment (after smoking) of Comparative Example 1 and Part 3 of Example 1. Figure 6 In part (b), the left side is the third part of Comparative Example 1. Figure 6 The right side of part (b) is the third part of Example 1.

[0148] Reference Figure 6 As can be seen from part (a), before smoking, the third part of cellulose acetate in Comparative Example 1 was substantially the same in appearance as the third part of lyocell in Example 1.

[0149] Reference Figure 6 As can be seen from section (b), after smoking (i.e., after heating and inhaling at a temperature of 190°C to 280°C), the third part of Comparative Example 1 turned yellow, while the third part of Example 1 did not change color. This confirms that the heat generated in the smoking product during smoking causes discoloration of the cellulose acetate material, while the lyocell material does not change color.

[0150] Furthermore, it can be confirmed that after smoking, the third part of Comparative Example 1 not only changed color but also melted and adhered (i.e., the material melted and adhered together), causing it to differ in shape from the wrapping paper covering the third part, and its overall size decreased. However, the third part of Example 1 substantially maintained the shape of the wrapping paper, and its overall shape remained largely unchanged. In other words, it can be confirmed that the cellulose acetate material (Comparative Example 1) melted upon heating, resulting in material deformation, while the lyocell material (Example 1) did not melt upon heating and therefore did not deform.

[0151] This is because lyocell material has superior heat resistance compared to cellulose acetate material, effectively preventing or minimizing deformation caused by heat generated during smoking, heat in the aerosol, and / or heat from heating the tobacco element (second part). Therefore, it can be confirmed that the third part of Example 1 has superior heat absorption performance compared to the third part of Comparative Example 1, and based on its good heat resistance, it has the advantage of maintaining its original shape without material deformation.

[0152] Example 2, Example 3 Similar to Example 1, the third portion of Example 2 with an inner diameter of approximately 2.8 mm and a circumference of 22.6 mm, and the third portion of Example 3 with an inner diameter of approximately 3.8 mm and a circumference of 22.6 mm were manufactured, and as follows: Figure 1 As shown in smoking article 200, a heated cigarette (as smoking article of Example 2 and Example 3) was manufactured having a first part made of paper with a length of 10 mm and including an aerosol generating element, a second part with a length of 12 mm and including tobacco material, a third part of Example 2 or Example 3, and a fourth part with a length of 14 mm and made of cellulose acetate. Its physical properties were measured, and the results are shown in Table 3 below.

[0153] Table 3

[0154] (In Table 3 above, Vent represents the ventilation rate (VR).) Experimental Example 4. Composition analysis of flue gas based on the inner diameter of Part 3. To compare the composition of the smoke from different inner diameters of the third part, the second part of the smoking products according to Examples 2 and 3 was heated externally at a temperature of 190°C to 280°C, and the total particulate matter (TPM), nicotine content, and moisture content were measured. The results are shown in Table 4 below.

[0155] In particular, experiments were conducted on the smoking products of Examples 2 and 3 in a smoking room with an internal temperature of approximately 22±2°C and an internal relative humidity of approximately 60±5% (specifically, a temperature of approximately 21.9°C and a relative humidity of 64.3%), under HC conditions (puff volume: 55 ml / puff frequency: 30 seconds / puff duration: 2 seconds / puff count: 9 puffs). The generated smoke was captured and analyzed after passing through a Cambridge filter (i.e., Cambridge filter pad, CFP). The total particulate matter (TPM) was measured as the change in weight of the Cambridge filter after smoking using the smoking device relative to the weight of the Cambridge filter before smoking. Other components were analyzed by gas chromatography (GC) of the captured smoke.

[0156] Table 4

[0157] Referring to Table 4 above, the migrating smoke components during smoking may vary depending on the inner diameter of the third part. Specifically, the moisture migration amount of the smoking product of Example 2, with an inner diameter of 2.8 mm for the third part, was 17.77 mg, while that of the smoking product of Example 3, with an inner diameter of 3.8 mm for the third part, was 16.77 mg. This shows that Example 3 exhibits greater moisture migration compared to Example 2, indicating that a smaller inner diameter of the tubular structure results in a more effective reduction in the perceived heat sensation. Furthermore, the atomization amount (total PG+Gly) of the smoking product of Example 2 was 1.06 mg, while that of Example 3 was 1.34 mg. This demonstrates that the atomization amount of the smoking product of Example 3 is greater than that of Example 2. In other words, compared with the smoking product of Example 2, which has an inner diameter of 2.8 mm, the smoking product of Example 3 with an inner diameter of 3.8 mm has a similar tar content but less moisture migration and greater atomization, resulting in a better cooling effect and excellent atomization, thereby improving the user's smoking quality.

[0158] While embodiments of the present disclosure have been described above with reference to the accompanying drawings, those skilled in the art will understand that it can be implemented in other specific forms without altering the technical concept or essential features of the present disclosure. Therefore, it should be understood that the embodiments described are exemplary and non-limiting in all respects. The scope of protection of this disclosure should be determined by the claims, and all interpretations of the technical spirit within the equivalent scope should fall within the scope of the technical concept defined by this disclosure.

Claims

1. A smoking product, characterized in that, include: The first part includes an aerosol generating substrate impregnated with aerosol generating elements. The second part includes tobacco components. The third part includes cooling elements, and The fourth part includes the filter element; The first part, the second part, the third part, and the fourth part are arranged sequentially along the length of the smoking product. The third part includes a bundle of Lyocell fibers containing multiple Lyocell fibers.

2. The smoking product according to claim 1, characterized in that, The third part of the lyocell bundle has a hollow tubular structure formed inside.

3. The smoking product according to claim 1, characterized in that, The third part also includes an adhesive dispersed in the plurality of said lyocell bundles.

4. The smoking article according to claim 3, characterized in that, The adhesive includes at least one of cellulose adhesives, vinyl adhesives, polyester adhesives, dextrin adhesives and starch adhesives.

5. The smoking product according to claim 2, characterized in that, The inner diameter of the third part is 10% to 90% of the outer diameter of the third part.

6. The smoking product according to claim 2, characterized in that, The outer diameter of the third part is 6mm to 10mm, and the inner diameter of the third part is 2mm to 6mm.

7. The smoking article according to claim 1, characterized in that, The fourth part includes at least one of cellulose acetate and lyocell.

8. The smoking article according to claim 1, characterized in that, The aerosol generating element includes at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol.

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