A smoking article comprising lyocell tow

Abstract

A smoking article is provided. The smoking article includes a media portion, a mouthpiece portion disposed apart from a side of the media portion, a support structure disposed between the media portion and the mouthpiece portion, and a cooling structure disposed between the support structure and the mouthpiece portion, the mouthpiece 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 fiber bundles are applied to the mouthpiece of the smoking article to prevent the fiber bundles in the mouthpiece from melting due to the high temperature applied to heat the smoking article, effectively reducing the heat sensation generated during the initial inhale, thereby providing an improved smoking experience. Background Technology

[0002] In smoking products, the migration of tobacco components (such as nicotine and tar) and the generation of atomization (vapor) significantly impact the user's smoking experience. Typically, smoking products utilize a device to heat 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 atomized, allowing the tobacco components contained within the atomized material to be delivered and inhaled by the user. However, if the device's set temperature is below the boiling point of glycerin, atomization becomes difficult, thus limiting the migration of tobacco components.

[0003] On the other hand, traditionally, cigarette mouthpieces use cellulose acetate (CA) tow to filter components in mainstream smoke. However, with cellulose acetate (CA) tow, the tow melts or deforms and then re-solidifies at temperatures above approximately 70°C. This can hinder the smooth flow of smoke, produce unpleasant odors, and prevent the filtration function from working effectively. Summary of the Invention

[0004] Technical issues The problem to be solved by the present invention is to provide a smoking article, which includes a medium part, a support structure, a cooling structure and a mouthpiece part, wherein lyocell fiber bundles are applied to the mouthpiece part to prevent the fiber bundles in the mouthpiece part from melting due to the high temperature applied by heating the smoking article, and to effectively reduce the heat generated during the initial inhalation, thereby providing the user with a richer and more improved smoking experience.

[0005] The technical problems of this invention are not limited to those described above. Through the following description, those skilled in the art can clearly understand other technical problems not mentioned.

[0006] Solution to the problem To solve the above-mentioned technical problems, a smoking article according to one aspect of this application includes: a medium portion; a mouthpiece portion arranged spaced apart from one side of the medium portion; a support structure arranged between the medium portion and the mouthpiece portion; and a cooling structure arranged between the support structure and the mouthpiece portion, wherein the mouthpiece portion includes a tow of lyocell fibers comprising a plurality of lyocell fibers.

[0007] In some embodiments, the single fineness of the lyocell fibers contained in the lyocell bundle may be 2.22 to 16.67 dtex (2 to 15 deniers), and the total fineness of the lyocell bundle may be 1111 to 4444 tex (10000 to 40000 deniers).

[0008] In some embodiments, based on the length of the mouthpiece being 12 mm, the suction resistance of the mouthpiece portion is 5 mmH2O (mmWG) to 14 mmH2O (mmWG).

[0009] In some embodiments, based on the length of the mouthpiece being 12 mm, the suction resistance of the mouthpiece portion is 6.2 mmH2O (mmWG) to 12 mmH2O (mmWG).

[0010] In some embodiments, the hardness of the mouthpiece portion can be 60% to 100%.

[0011] In some embodiments, the hardness of the mouthpiece portion can be 85% to 95%.

[0012] In some embodiments, the cooling structure described above may be tubular with an internal cavity.

[0013] In some embodiments, the support structure described above may be a tubular structure with an internal cavity.

[0014] In some embodiments, the cooling structure is a tube with an internal cavity, the support structure is a tube with an internal cavity, and the cavity of the cooling structure and the cavity of the support structure are communicative.

[0015] In some embodiments, the support structure may include cellulose acetate, or at least one of the above-mentioned lyocell and paper tube.

[0016] In some embodiments, the cooling structure described above may include at least one of a tubular structure made of paper material, a tubular structure made of cellulose acetate material, and a tubular structure made of lyocell material.

[0017] In another aspect of this application, a system is provided that includes the above-described smoking article and an aerosol generating apparatus for using the smoking article.

[0018] In another aspect of this application, a method for preparing the above-mentioned smoking article is provided.

[0019] The effects of the invention According to one embodiment of the smoking article, in a smoking article including a medium part, a support structure, a cooling structure and a mouthpiece part, by applying lyocell fiber bundles to the mouthpiece part, it is possible to prevent the fiber bundles in the mouthpiece part from melting due to high temperatures caused by the heat applied to heat the smoking article, effectively reducing the heat sensation generated during the initial inhalation, thereby providing the user with a richer and more improved smoking experience.

[0020] 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

[0021] Figure 1 The diagram illustrates a smoking article according to an embodiment of the present invention.

[0022] Figure 2 A diagram illustrating a smoking article according to another embodiment of the present invention is provided for illustrative purposes.

[0023] Figures 3 to 5 Examples of various types of aerosol generating apparatuses for smoking articles according to some embodiments of the present disclosure are provided. Detailed Implementation

[0024] 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 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 can fully understand the scope of this disclosure. The technical concept of this disclosure is determined solely by the scope of the claims.

[0025] When adding reference numerals to the constituent elements of the various figures, it should be noted that even if the constituent elements are shown in different figures, the same reference numerals refer to the same constituent elements. Furthermore, in the process of describing this disclosure, if a detailed description of the relevant prior art structure or function is considered to obscure the gist of this disclosure, such detailed description may be omitted.

[0026] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) are to be used in a manner commonly understood by one of ordinary skill in the art to which this disclosure pertains. Furthermore, terms that are commonly used and defined in dictionaries will not be interpreted unreasonably or excessively without explicit specific definition. The terminology used in this specification is for illustrative purposes and is not intended to limit the scope of this disclosure. In this specification, unless specifically mentioned otherwise, singular nouns also include plural forms.

[0027] Furthermore, in describing the constituent elements of this disclosure, terms such as first, second, A, B, (a), and (b) may be used. These terms are used only to distinguish the constituent element from other constituent elements, and the nature, order, or sequence of the relevant constituent elements are not limited by these terms. It should be understood that if a constituent element is described as "connected," "combined," or "linked" to another constituent element, it may mean that the constituent element is not only directly "connected," "combined," or "linked" to another constituent element, but may also be understood as being "connected," "combined," or "linked" with other constituent elements.

[0028] The terms “comprises” and / or “comprising” as used in this disclosure specify the presence of the described constituent elements, steps, operations and / or components, but do not exclude the presence or addition of one or more other constituent elements, steps, operations and / or components.

[0029] First, some terms used in this specification will be explained.

[0030] In this specification, "smoking article" can mean 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.

[0031] In this specification, "smoking material" can refer to any type of substance that can be used in smoking products.

[0032] In this specification, the term "user" may be used interchangeably with "consumer".

[0033] 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.

[0034] 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).

[0035] In this specification, the term "Lycell filter" refers to a filter containing or composed of Lycell filaments.

[0036] 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.

[0037] 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.

[0038] In this specification, the “monofilament” of a lyocell tow or cellulose acetate tow refers to the fineness of the monofilament separated from the multifilament of the lyocell or cellulose acetate fibers that make up the lyocell tow or cellulose acetate tow.

[0039] In this specification, the “total fineness” of a lyocell tow or cellulose acetate tow refers to the fineness of the multi-strand filaments of the lyocell or cellulose acetate fibers that make up the lyocell tow or cellulose acetate tow.

[0040] In this specification, "reconstituted tobacco leaves" may refer to reconstituted tobacco leaves.

[0041] In this specification, "reconstituted tobacco leaf" or "reconstituted tobacco sheet" can refer to a sheet-like material made by combining tobacco by-products selected from the group consisting of tobacco stems, dust, particulate matter, and combinations thereof with an adhesive. In some embodiments, the reconstituted tobacco leaf is homogenized tobacco leaf.

[0042] In this specification, "irregular cross-section" is defined as a shape whose cross-sectional shape 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. Herein, "protrusion" can refer to a distinct and extended segment or arm extending outward from the central core or joint of the Lyocell fiber cross-section.

[0043] 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.

[0044] 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.

[0045] In some embodiments, for use in cigarette filters, the lyocell fibers contained in the lyocell tow may have a Y-shaped cross-section.

[0046] In this specification, "cavity" can refer to a channel that extends along its length. For example, a structure with a cavity can be referred to as a "tubular structure".

[0047] In this specification, "consisting of" an element may mean that the element is included or that the element is composed of.

[0048] In this specification, "basic weight" refers to the mass per unit area of ​​the paper roll and / or wrapping paper. The basic weight of the paper roll and / or wrapping paper can be determined by measuring the mass and area of ​​the paper roll and / or wrapping paper, and then dividing the mass by the area. The unit of basic weight can be gsm (grams per square meter), i.e., g / m². 2 .

[0049] In this specification, “wrapping” of a smoking article by wrapper and / or roll paper may refer to the wrapper covering at least a portion of the circumferential surface of the smoking article’s parts and / or structure along its longitudinal axis.

[0050] In this specification, the hardness of the mouthpiece is a quantified value representing the degree to which the diameter of the mouthpiece is maintained when a horizontal force is applied to it in a direction perpendicular to its length. It can be a percentage of the mouthpiece diameter before and after the applied force. For example, the hardness (%) of the mouthpiece can be calculated using the following formula: (Da) / D × 100%. Where D is the diameter of the mouthpiece, and a is the distance the mouthpiece descends (i.e., is pressed down) under the action of a 300g weight. Measurements required to calculate the above hardness can be obtained using, for example, Filtrona's DHT 200. TM Obtained. When measuring hardness, the force applied to the mouthpiece can be considered equivalent to the force actually applied by the user to the smoking product.

[0051] 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 smoking using the smoking article. In some embodiments, the filter of the smoking article can capture at least a portion of particulate matter (total particulate matter, hereinafter referred to as "TPM") including 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.

[0052] In this specification, the removal capacity (%) of the filter tip for a specific component can be calculated using the following formula: (Residual amount in the filter tip after smoking) / (Residual amount in the filter tip after smoking + Aerosol migration amount after smoking) × 100%. The migration rate (%) of the specific component can be calculated using the following formula: 100 (%) - Removal capacity (%).

[0053] 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 airflow prevented, while "PDO" refers to the suction resistance value measured with the media section open, the filter nozzle perforation not closed, and external airflow allowed. For example, suction resistance can be measured using the method specified in ISO standard 6565:2015. According to ISO standard 6565:2015, suction resistance can be defined as the static pressure difference between the two ends of the sample when airflow passes through it under normal conditions (22±2℃, relative humidity 60±5%), with a volumetric flow rate of 17.5 mm / s at the outlet end.

[0054] In this specification, organic acid is a term used to refer to organic compounds that are acidic.

[0055] In some embodiments, room temperature may refer to 20°C to 25°C.

[0056] In this specification, unless a separate physical quantity is specified, the percentage of a component and the proportion of a component represent the weight percentage and the weight proportion of the component, respectively.

[0057] 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.

[0058] In this specification, HC (Health Canada) conditions can be defined as a puff volume of 55 mL, a puff frequency of once every 30 seconds, and a puff duration of 2 seconds. Specifically, HC conditions can also refer to the state of the perforated portion of the sealed filter tip. When measuring under HC conditions, the number of puffs can be up to 9.

[0059] In this specification, the “ventilation rate” (hereinafter referred to as “ventilation rate”) of a smoking product can be defined as: the percentage ratio of the total volumetric flow rate (e.g., ml / s) of air entering the unburned or unheated smoking product without passing through the front end region (i.e., the upstream end in the length direction) of the smoking product, relative to the total volumetric flow rate (e.g., ml / s) of air entering the downstream end in the length direction of the smoking product. For example, the ventilation rate can be measured according to ISO 9512:2019. For example, the total volumetric flow rate of air entering the unburned or unheated smoking product without passing through the front end region of the smoking product can be the total volumetric flow rate of air entering along a direction perpendicular to the length direction of the smoking product. For example, the total volumetric flow rate of air entering the unburned or unheated smoking product without passing through the front end region of the smoking product can be the total volumetric flow rate of air entering the smoking product through the cigarette paper.

[0060] The content of total particulate matter (TPM) in the captured flue gas can be analyzed by gas chromatography-mass spectrometry (GC / MS). For example, for tar or nicotine, Cambridge filter pads (CFPs) used to capture 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), Cambridge filter pads (CFPs) used to capture the flue gas components 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 content of total particulate matter (TPM) in the captured flue gas can be measured using a GC / MS instrument. In particular, soaking time can be more than 20 minutes for tar or nicotine, and more than 2 hours for PG and Gly.

[0061] The amount of components (especially nicotine) remaining inside the filter tip (especially lyocell filter tip and / or lyocell tow, especially the mouthpiece portion) and / or segments of a cigarette stick after smoking can be measured by immersing the cigarette stick, filter tip, and / or segments in water after smoking to extract the residual components (especially nicotine), followed by analysis using a GC / MS instrument. In this case, the cigarette stick, filter tip, and / or segments (especially the mouthpiece portion) are immersed in a container of distilled water overnight (e.g., 12 to 16 hours), and the resulting solution containing the extracted components can then be used for GC / MS analysis. In particular, the immersion time can be 16 hours.

[0062] The aforementioned GC / MS equipment can 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] Figure 1 The diagram is provided for illustrative purposes only and represents an embodiment of a smoking article according to the present invention. Figure 2 A diagram illustrating a smoking article according to another embodiment of the present invention is provided for illustrative purposes.

[0065] Reference Figure 1The smoking article 100 may include a medium portion 110, a support structure 120, a cooling structure 130, and a mouthpiece portion 140. The cooling structure 130 may be arranged spaced apart from one end of the medium portion 110 along its length. The mouthpiece portion 140 may be arranged in the opposite direction to the support structure 120 relative to the cooling structure 130. In some embodiments, the smoking article 100 may also include a wrapping paper 150. In particular, the smoking article 100 may include a medium portion 110, a cooling structure 130 arranged spaced apart from the medium portion 110 on one side, a support structure 120 arranged between the medium portion 110 and the cooling structure 130, and a mouthpiece portion 140 arranged on one side of the support structure 120 across the cooling structure 130. The medium portion 110, support structure 120, cooling structure 130, and mouthpiece portion 140 may be arranged sequentially along their length. In some embodiments, the smoking article 100 may further include a wrapping paper 150 covering at least a portion of the covering medium portion 110, the support structure 120, the cooling structure 130, and the mouthpiece portion 140.

[0066] The medium portion 110 may include an aerosol forming substrate. The medium portion 110 may include an aerosol forming substrate, thereby generating an aerosol by heating. The length of the medium portion 110 may be approximately 10 mm to 14 mm (e.g., 12 mm), but is not limited thereto. The medium portion 110 can generate an aerosol by being inserted into an aerosol generating device and heated, and the generated aerosol (e.g., mainstream smoke) can be inhaled through a user's mouth.

[0067] In some embodiments, the aerosol forming substrate may include tobacco material, but the processing form of the tobacco material may vary. For example, the aerosol forming substrate may include reconstituted tobacco sheets, such as reconstituted tobacco sheets. In some embodiments, the aerosol forming substrate may include reconstituted tobacco sheets. In some embodiments, the aerosol forming substrate may also include a plurality of tobacco shreds (or "a plurality of tobacco shreds") finely chopped from reconstituted tobacco sheets. For example, the medium portion 110 may be filled with a plurality of tobacco shreds arranged in the same direction (e.g., parallel) and / or randomly arranged. In some embodiments, the aerosol forming substrate may include tobacco leaf shreds. In some embodiments, the aerosol forming substrate may include reconstituted tobacco sheets and tobacco leaf shreds.

[0068] In some embodiments, the aerosol forming substrate or medium portion 110 may include at least one humectant. The humectant may include glycerin and / or propylene glycol, etc. However, it is not limited thereto.

[0069] In some embodiments, the aerosol forming substrate or medium portion 110 may contain other additives such as at least one flavoring agent (or what may be referred to as a "flavoring substance") and / or organic acid. For example, the flavoring agent may include licorice, sucrose, fructose syrup, artificial sweeteners (e.g., Isosweet). TM (Ingredients include) cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, peppermint oil, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cinnamon, ylang-ylang, sage, spearmint, ginger, coriander, and / or coffee, etc. However, it is not limited to these.

[0070] The support structure 120 can be located downstream (on one side) of the medium section 110, and the upstream of the support structure 120 can be connected to the downstream of the medium section 110. The support structure 120 can serve as a support member for the medium section 110. For example, when the heating element of the aerosol generating device is inserted into and / or aligned with the outside of the medium section 110, the support structure 120 can prevent the medium section 110 from moving downstream. The support structure 120 can also serve as a channel for aerosols (e.g., mainstream flue gas) formed in the medium section 110.

[0071] In some embodiments, the support structure 120 may include a tubular structure with an internal cavity 120H, and the cavity 120H may serve as a channel for aerosol movement. The cavity 120H may extend along the length direction of the support structure 120. The cavity 120H may be located at the center of a cross-section perpendicular to the length direction of the support structure 120 and extend along the length direction of the support structure 120. The cavity 120H and the support structure 120 may be coaxial along the length direction. The length of the support structure 120 may be approximately 8 mm to 12 mm (e.g., 10 mm), but is not limited thereto. In some embodiments, the length of the support structure 120 may be less than or equal to the length of the cooling structure 130 described below, but is not limited thereto.

[0072] The upstream end of the tubular structure included in the support structure 120 can be connected to the downstream end of the tubular structure included in the cooling structure 130. In other words, one end located on one side (downstream) of the support structure 120 can be connected to the end located on the opposite side (upstream) of the cooling structure 130, and the other end located on the other side (upstream) of the support structure 120 can be connected to one end of the medium section 110. Therefore, the aerosol formed in the medium section 110 can move through the cavities 120H and 130H in the direction of the mouthpiece section 140 (i.e., the downstream direction).

[0073] The support structure 120 may include at least one of cellulose acetate, lyocell, and paper tube. In particular, the support structure 120 may include a tubular structure made of cellulose acetate material and / or a tubular structure made of lyocell material comprising multiple lyocell fibers. In other words, the support structure 120 may be a tubular filter tip made of cellulose acetate fibers and / or a tubular filter tip made of lyocell fibers. The support structure 120 can effectively prevent the media section 110 from moving downstream when the heating element is inserted, and can also provide the effect of filtering and cooling aerosols.

[0074] Preferably, the support structure 120 may comprise a tubular structure composed of lyocell bundles containing multiple lyocell fibers. However, it is not limited thereto; alternatively or additionally, the support structure 120 may also comprise a tubular structure made of cellulose acetate material. Because the support structure 120 includes a cavity (i.e., a tubular structure) and is composed of lyocell bundles containing multiple lyocell fibers, the support structure 120 can prevent or minimize deformation of the support structure 120 caused by heat applied to heat the smoking article 100 and / or by high-temperature aerosols passing through the cavity 120H of the support structure 120 due to the high heat resistance of the lyocell bundles, which will not melt even at high temperatures. Therefore, the support structure 120 can maintain its shape during smoking, ensuring that the smoke composition passing through the cavity 120H of the support structure 120 remains uniform and unchanged during the smoking time, thereby providing the user with a superior smoking experience.

[0075] On the other hand, preferably, the support structure 120 is manufactured to have appropriate hardness and / or durability in order to provide support. In some embodiments, when the support structure 120 comprises cellulose acetate, the hardness of the support structure 120 can be adjusted by regulating the amount of plasticizer added when manufacturing the support structure 120 using the aforementioned cellulose acetate. For example, the hardness of the support structure 120 may increase as the amount of plasticizer added increases. Furthermore, the content of added plasticizer may also increase as the inner diameter of the support structure 120 increases (i.e., as the difference between the outer diameter and the inner diameter of the support structure 120 decreases). In some other embodiments, the support structure 120 may also be manufactured by inserting a structure such as a membrane, tube, etc., made of the same or different materials inside (i.e., cavity 120H).

[0076] In some other embodiments, when the support structure 120 includes lyocell, the support structure 120 may be a lyocell filter tip with an internal cavity 120H and at least one adhesive added. Unlike cellulose acetate, lyocell does not contain plasticizers that harden the lyocell fibers; instead, the support structure 120 is appropriately stiffened by the addition of an adhesive. That is, by including at least one adhesive in the support structure 120, excellent stiffness can be achieved even though it is a lyocell filter tip composed of lyocell filament bundles.

[0077] 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 together 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.; examples of polyester adhesives may be polyesters comprising at least one of the group consisting of alkylene, aryl, and heteroaryl groups having 5 to 12 carbon atoms; dextrin adhesives may include dextrin, etc.; and starch adhesives may include starch (e.g., cassava, corn, wheat, potato, sweet potato, etc.), cationic starch, esterified starch, etc., but are not limited thereto.

[0078] 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.

[0079] In some embodiments, the support structure 120 may be a flavored filter tip with added flavoring substances such as menthol (i.e., flavored). In this case, the flavor expression of the smoking article 100 may be enhanced.

[0080] The cooling structure 130 can be used as a cooling component for the high-temperature aerosol generated during heating of the medium section 110. Specifically, the cooling structure 130 may include a tubular structure with an internal cavity 130H, capable of cooling the aerosol passing through the cavity 130H. In particular, the aerosol formed in the medium section 110 can move through the cavity 120H of the support structure 120 to the cavity 130H of the cooling structure 130, and move towards the mouthpiece section 140 (i.e., downstream). The cavity 130H may extend along the length direction of the cooling structure 130. The cavity 130H may be located at the center of a cross-section perpendicular to the length direction of the cooling structure 130, and extend along the length direction of the cooling structure 130. The cavity 130H and the cooling structure 130 may be coaxial along the length direction.

[0081] The cavities 120H of the support structure 120 and 130H of the cooling structure 130 can be located at the center of cross-sections perpendicular to the length direction of the support structure 120 and the cooling structure 130, respectively, and extend along the length direction of the support structure 120 and the cooling structure 130. The cavities 120H of the support structure 120 and 130H of the cooling structure 130 can extend along the same axis in the length direction. The cavities 120H of the support structure 120 and 130H of the cooling structure 130 can have the same or different diameters on cross-sections perpendicular to the aforementioned axes.

[0082] Therefore, users can inhale aerosols at an appropriate temperature, and the mainstream smoke can be smoothly atomized to increase the amount of atomization.

[0083] In some embodiments, the cooling structure 130 may include at least one of a tubular structure made of paper material, a tubular structure made of cellulose acetate material, and a tubular structure made of lyocell material. The length of the cooling structure 130 may be from about 12 mm to 16 mm (e.g., 14 mm), but is not limited thereto.

[0084] Preferably, the cooling structure 130 may comprise a tubular structure composed of lyocell bundles containing multiple lyocell fibers. However, it is not limited thereto; the cooling structure 130 may comprise a tubular structure made of cellulose acetate material and / or a paper tube. Because the cooling structure 130 includes a cavity and is composed of lyocell bundles containing multiple lyocell fibers, the high heat resistance of the lyocell bundles, which do not melt even at high temperatures, prevents or minimizes deformation of the cooling structure 130 caused by heat applied to heat the smoking article 100 and / or by high-temperature aerosols passing through the cavity 130H of the cooling structure 130. Therefore, the cooling structure 130 can maintain its shape during smoking, ensuring that the smoke composition passing through the cavity 130H of the cooling structure 130 remains uniform and unchanged over the smoking time, thereby providing a superior smoking experience for the user. When the cooling structure 130 is composed of lyocell bundles, the cooling structure 130 may also include an adhesive dispersed in the lyocell bundles to impart a predetermined stiffness.

[0085] In some embodiments, the adhesive described above may include, but is not limited to, the exemplary materials listed in the adhesives included in the support structure 120.

[0086] In some embodiments, the adhesive included in the cooling structure 130 may be the same as or different from the adhesive included in the support structure 120.

[0087] 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.

[0088] The mouthpiece portion 140 is a mouthpiece that contacts the user's mouth and can be used as a filter to ultimately transfer aerosols from upstream to the user. The mouthpiece portion 140 can be located downstream of the cooling structure 130, and the upstream of the mouthpiece portion 140 can be connected to the downstream of the cooling structure 130, forming the downstream end of the smoking product 100.

[0089] In one embodiment, the mouthpiece portion 140 may include a Lyocell filter made of a Lyocell tow comprising a plurality of Lyocell fibers. The length of the mouthpiece portion 140 may be from about 10 mm to 14 mm (e.g., 12 mm), but is not limited thereto.

[0090] In this invention, the lyocell fiber included in the mouthpiece portion 140 is an environmentally friendly fiber made from cellulose extracted from wood pulp. The aforementioned lyocell bundle can refer to a bundle formed by the cross-connection of adjacent lyocell fibers.

[0091] 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.

[0092] 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, a star-shaped cross section including five or more protrusions, or an O-shaped cross section, but are not limited thereto.

[0093] In some embodiments, the single denier (denier number) of the lyocell fibers included in the mouthpiece portion 140 may be 2.22 dtex to 16.67 dtex (2 denier to 15 denier), preferably 2.44 dtex to 15.56 dtex (2.2 denier to 14 denier), more preferably 2.78 dtex to 14.44 dtex (2.5 denier to 13 denier), and even more preferably 3.33 dtex to 13.33 dtex (3 denier to 12 denier). The mouthpiece portion may include a lyocell tow with a total denier (total denier) of 1111 tex to 4444 tex (10000 denier to 40000 denier), preferably 2222 tex to 4333 tex (20000 denier to 39000 denier), and more preferably 2778 tex to 4222 tex (25000 denier to 38000 denier).

[0094] In some embodiments, based on a length of 12 mm for the mouthpiece portion 140, the draw resistance of the mouthpiece portion 140 can be from 5 mmH2O (mmWG) to 14 mmH2O (mmWG), preferably from 5.5 mmH2O (mmWG) to 13 mmH2O (mmWG), more preferably from 6 mmH2O (mmWG) to 12.5 mmH2O (mmWG), even more preferably from 6.2 mmH2O (mmWG) to 12 mmH2O (mmWG), even more preferably from 6.4 mmH2O (mmWG) to 6.8 mmH2O (mmWG), even more preferably from 8.7 mmH2O (mmWG) to 9.3 mmH2O (mmWG), even more preferably from 11 mmH2O (mmWG) to 12 mmH2O (mmWG), and even more preferably from 11.5 mmH2O (mmWG) to 11.8 mmH2O (mmWG). With a draw resistance within the aforementioned range, the amount of moisture migration in the aerosol generated during smoking can be reduced, thereby decreasing the heat sensation experienced by the smoker during the initial inhale and improving the removal capacity of nicotine from the aerosol.

[0095] Hardness is a physical property related to the elasticity and resilience of the mouthpiece 140, referring to the degree to which the mouthpiece 140 resists pressure applied in a direction perpendicular to its length. To maintain its shape and facilitate use when the user is using the smoking product, it is preferable to maintain a certain level of hardness.

[0096] In some embodiments, the hardness of the mouthpiece portion 140 can be 60% to 100%, preferably 70% to 99%, more preferably 75% to 98%, even more preferably 80% to 97%, and even more preferably 85% to 95%, but is not limited thereto. The hardness of the mouthpiece portion 140 mentioned above refers to a quantified value of the degree to which the diameter of the mouthpiece portion 140 is maintained when a certain horizontal force is applied to the mouthpiece portion 140 in a direction perpendicular to its length. This value can be a percentage of the ratio between the diameter of the mouthpiece portion 140 after the force is applied and the diameter of the mouthpiece portion 140 before the force is applied.

[0097] The perimeter of the cross section of the mouthpiece portion 140 perpendicular to the length direction of the smoking article 100 can be from 14 mm to 25 mm, for example, from 22 mm to 23 mm, but is not limited thereto.

[0098] In some embodiments, the mouthpiece portion 140 may further include an adhesive dispersed in the lyocell filament bundle. By further including an adhesive dispersed in the lyocell filament bundle, the mouthpiece portion 140 can achieve a predetermined hardness.

[0099] In some embodiments, the mouthpiece portion 140 may be inserted with at least one flavor capsule.

[0100] For reference, the support structure 120, cooling structure 130, and mouthpiece 140 can all be used as filters for aerosols. To emphasize their function as filters, each component can also be referred to as a "filter section". For example, the support structure 120, cooling structure 130, and mouthpiece 140 can also be referred to as the first filter section, the second filter section, and the third filter section, respectively.

[0101] The wrapping paper 150 can cover at least one of the medium portion 110, the support structure 120, the cooling structure 130, and the mouthpiece portion 140 for packaging. Although not shown in the figures, at least one of the medium portion 110, the support structure 120, the cooling structure 130, and the mouthpiece portion 140 can be individually wrapped with wrapping paper before being wrapped with wrapping paper 150. For example, the medium portion 110 can be wrapped with medium portion wrapping paper (not shown in the figures), and the support structure 120, the cooling structure 130, and the mouthpiece portion 140 can be wrapped with first filter wrapping paper (not shown in the figures), second filter wrapping paper (not shown in the figures), and third filter wrapping paper (not shown in the figures), respectively. However, the packaging method of the smoking product 100 and its constituent elements is not limited to this and can be changed.

[0102] In some embodiments, the packaging paper 150 may be formed with perforations 160 arranged circumferentially along the cooling structure 130 (see reference). Figure 1 It can also be without perforation (no perforation, see reference). Figure 2 In some embodiments, the packaging paper 150 may be formed with perforations 160 arranged circumferentially along the cooling structure 130, particularly along a cross section perpendicular to the length direction of the cooling structure 130 (see reference). Figure 1 When perforations are formed on the packaging paper 150, external air can flow into the interior of the cooling structure 130 through the multiple perforations 160. The flow of external air through the multiple perforations 160 can reduce the surface temperature of the mouthpiece and the temperature of the mainstream smoke transmitted to the smoker. However, this is not a limitation; perforations may not be formed on the packaging paper 150. Even without perforations on the packaging paper 150, as described below, due to the excellent hydrophilicity of the lyocell material constituting the support structure 120, the moisture absorption performance in the mainstream smoke is excellent, thereby significantly reducing the heat sensation of the mainstream smoke after passing through the support structure 120.

[0103] The structure and effects of the present invention will be described in more detail below through embodiments and comparative examples. However, these embodiments are only used to further illustrate the present invention, and the scope of the present invention is not limited to these embodiments.

[0104] Example 1 The following were manufactured according to the conditions shown in Table 1: Figure 1 The smoking article shown includes a medium section with a length of 12 mm, a support structure with an inner diameter of 2.7 mm, an outer diameter of 7 mm, and a length of 10 mm made of cellulose acetate material, a cooling structure with an inner diameter of 6 mm and a length of 14 mm made of paper tube, and a mouthpiece section with a length of 12 mm made of lyocell filament bundle.

[0105] Comparative Example 1 Smoking articles were prepared under the conditions shown in Table 1, except that the mouthpiece was prepared using cellulose acetate tow, and were otherwise identical to those in Example 1.

[0106] [Table 1]

[0107] (In Table 1 above, PDC refers to the suction resistance value measured with the media section open, the filter nozzle perforation closed, and external airflow prevented. PDO refers to the suction resistance value measured with the media section open, the filter nozzle perforation not closed, and external airflow allowed. Vent represents the ventilation rate (VR).) Experimental Example 1. Measurement of mainstream smoke temperature during each draw based on the material of the mouthpiece. To compare the mainstream smoke temperature of each puff of the smoking products of Example 1 and Comparative Example 1, the medium section of the smoking products of Example 1 and Comparative Example 1 was heated to a heating temperature of 190°C to 280°C by external heating, and the temperature of the generated mainstream smoke was measured. The results are shown in Table 2 below.

[0108] 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 humidity of about 60±5% (especially with a temperature of about 21.9°C and a humidity of 64.3%), under HC conditions (puff volume: 55ml / puff frequency: 30 seconds / puff duration: 2 seconds / puff count: 9 times), and a thermocouple sensor was placed inside the generated smoke 5mm from the end of the mouthpiece to measure the temperature of the mainstream smoke.

[0109] [Table 2]

[0110] Referring to Table 2 above, a comparison of the mainstream smoke temperatures of the smoking products of Example 1 and Comparative Example 1, which have similar physical properties, shows that throughout the entire inhalation process, the mainstream smoke temperature of the smoking product of Example 1 is lower than that of the smoking product of Comparative Example 1. During the initial inhalation (especially the first to fourth inhalations), the mainstream smoke temperature of the smoking product of Example 1 is more than 8°C lower than that of the smoking product of Comparative Example 1. This indicates that Lyocell material has superior cooling effects compared to cellulose acetate material, especially for the initial inhalation.

[0111] Example 2 Lyocell bundles with a single fineness of 3.33 dtex (denier number of 3.0) and a total fineness of 3889 tex (denier number of 35000) were prepared.

[0112] Examples 3 to 5 The filter tip (i.e., the mouthpiece portion) containing the lyocell tow of Example 2 was manufactured into a filter tip with a length of 12 mm according to the conditions shown in Table 3 below. Based on the draw resistance of the prepared filter tip (i.e., the mouthpiece portion), they were named Example 3, Example 4, and Example 5, respectively. The packaging paper used to manufacture the filter tip was a roll of paper with a basis weight of 75 gsm (untreated for oil resistance).

[0113] [Table 3]

[0114] Subsequently, filters were prepared using the filters from Examples 3 to 5 as shown in Table 4. Figure 1 The smoking article shown includes a medium section with a length of 12 mm, a support structure with an inner diameter of 2.7 mm, an outer diameter of 7 mm, and a length of 10 mm made of cellulose acetate material, a cooling structure with an inner diameter of 6 mm and a length of 14 mm made of paper tube, and a mouthpiece section with a length of 12 mm, which is respectively composed of embodiments 3 to 5.

[0115] [Table 4]

[0116] (In Table 4 above, PDC refers to the suction resistance value measured with the media section open, the filter nozzle perforation closed, and external air prevented from flowing in. PDO refers to the suction resistance value measured with the media section open, the filter nozzle perforation not closed, and external air allowed to flow in.) Experimental Example 2. Analysis of the composition of smoke based on the draw resistance of the cigarette mouthpiece. To compare the composition of the smoke based on the draw resistance of the mouthpiece, the medium portion of the smoking products according to Examples 3 to 5 was heated by external heating 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 5 below.

[0117] In particular, the experiment was conducted on the smoking products of Examples 3 to 5 in a smoking room with an internal temperature of approximately 22 ± 2 °C and an internal humidity of approximately 60 ± 5% (specifically, a temperature of approximately 21.9 °C and a humidity of 64.3%), under HC conditions (puff volume: 55 ml / puff frequency: 30 seconds / puff duration: 2 seconds / number of puffs: 9). The generated smoke was captured and analyzed after passing through a Cambridge filter (i.e., a 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 compared to the weight of the Cambridge filter before smoking. Other components were analyzed by gas chromatography (GC) of the captured smoke.

[0118] [Table 5]

[0119] Referring to Table 5 above, the components of the smoke that migrate during smoking may vary depending on the draw resistance of the mouthpiece. Specifically, the moisture migration in the smoking product of Example 3, with its higher mouthpiece draw resistance, was 16.19 mg, while the moisture migration in the smoking product of Example 5, with its lower draw resistance, was 19.15 mg. This confirms that a higher draw resistance results in less moisture migration in the mainstream smoke, leading to a better reduction in heat sensation for the user during inhalation. (When the moisture content in the mainstream smoke is high, the smoker will experience a stronger heat sensation at the same temperature.) Experimental Example 3. Nicotine Removal Capacity Based on the Draw Resistance of the Cigarette Mouthpiece Subsequently, in order to compare the nicotine removal performance based on the draw resistance of the mouthpiece, the medium portion of the smoking products of Examples 3 to 5 was heated at a heating temperature of 190°C to 280°C using an external heating method, and the nicotine content in the migrated aerosol and the nicotine content remaining inside the mouthpiece (filter) were measured. The measurement results were then substituted into the following mathematical formula 1 to calculate the nicotine removal capacity of the filter, and substituted into mathematical formula 2 to calculate the nicotine migration rate of the filter. The final calculation results are listed in Table 6 below.

[0120] The amount of nicotine in the aerosol was determined by capturing the smoke generated in Experiment 2 using a Cambridge filter pad (CFP) and analyzing and measuring it using gas chromatography (GC). The amount of nicotine remaining inside the mouthpiece was extracted by immersing the mouthpiece in water after smoking and then analyzing and measuring it using GC / MS. The mouthpiece was immersed overnight in distilled water, and the resulting solution containing the extracted components was then used for GC / MS analysis.

[0121] [Mathematical Expression 1] Removal capacity (%) = (Residual amount in the cigarette holder (filter) after smoking) / (Residual amount in the cigarette holder (filter) after smoking × Aerosol migration after smoking) × 100 [Mathematical Expression 2] Migration rate (%) = 100 (%) - Removal capacity (%) [Table 6]

[0122] Referring to Table 6 above, it can be confirmed that due to the difference in draw resistance at the mouthpiece, the nicotine removal capacity of the smoking product of Example 3, which has a larger draw resistance, is 64.9%, while the nicotine removal capacity of the smoking product of Example 5, which has a smaller draw resistance, is 49.4%. This shows that the greater the draw resistance, the better the nicotine removal capacity.

[0123] Figures 3 to 5 Examples illustrate various types of aerosol generating devices for smoking articles according to some embodiments of this disclosure. In particular, Figure 3 To illustrate a schematic structural diagram of the cigarette-type aerosol generating device 1000, Figure 4 and Figure 5 This is a schematic structural diagram of a hybrid aerosol generating device 1000 that simultaneously uses liquid and cigarette smoke. The components of the aerosol generating device 1000 will be briefly described below.

[0124] like Figure 3 As shown, the aerosol generating device 1000 can be a device that generates aerosol by inserting a cigarette 2000 into its internal space. The cigarette 2000 can correspond to the smoking product 100 described above. Therefore, the cigarette 2000 can include the aforementioned medium section 110, support structure 120, and mouthpiece section 140. More specifically, when the cigarette 2000 is inserted into the aerosol generating device 1000, the aerosol generating device 1000 can drive the heater section 1300 to generate aerosol from the cigarette 2000. The generated aerosol can be delivered to the user through the cigarette 2000.

[0125] As shown in the figure, the aerosol generating apparatus 1000 may include a battery 1100, a control unit 1200, and a heater unit 1300. However, Figure 3 Only the constituent elements relevant to embodiments of this disclosure are shown. Therefore, those skilled in the art to which this disclosure pertains will understand that other elements may also be included. Figure 3 Other common components besides those shown. For example, the aerosol generating apparatus 1000 may also include a display capable of outputting visual information and / or a motor for outputting tactile information, and / or at least one sensor (a suction detection sensor, a temperature detection sensor, and / or a cigarette insertion detection sensor, etc.). The components of the aerosol generating apparatus 1000 will be described below.

[0126] The battery 1100 supplies power for the operation of the aerosol generating apparatus 1000. For example, the battery 1100 can supply power to enable the heater section 1300 to operate, or it can supply power required for the operation of the control section 1200. In addition, the battery 1100 can supply power required for the operation of displays, sensors, and motors (not shown) installed in the aerosol generating apparatus 1000.

[0127] Secondly, the control unit 1200 can control the operation of the aerosol generating apparatus 1000 as a whole. In particular, the control unit 1200 can control not only the battery 1100 and the heater unit 1300, but also the operation of other components that may be included in the aerosol generating apparatus 1000. Furthermore, the control unit 1200 can determine whether the aerosol generating apparatus 1000 is in an operable state by checking the status of each component of the aerosol generating apparatus 1000.

[0128] The control unit 1200 may include at least one processor. The processor may be implemented using a plurality of logic gate arrays, or it may be implemented using a combination of a general-purpose microprocessor and a memory storing a program executable on the microprocessor. Furthermore, those skilled in the art to which this disclosure pertains will understand that the control unit 1200 may be implemented in other forms of hardware.

[0129] Secondly, the heater section 1300 can heat the cigarette 2000 using electricity supplied from the battery 1100. For example, when the cigarette 2000 is inserted into the aerosol generating device 1000, the heating element of the heater section 1300 can be inserted into a portion of the inner side of the cigarette 2000 to increase the temperature of the aerosol forming substrate in the cigarette 2000.

[0130] In some embodiments, unlike Figure 3As shown, alternatively or additionally, the heater section 1300 may also include an external heating element. In this case, the heating element of the heater section 1300 may be arranged outside the cigarette 2000 inserted into the device 1000. Furthermore, unlike the figures, the heater section 1300 may also include multiple heating elements. For example, the heater section 1300 may include multiple internal heating elements and / or multiple external heating elements. As another example, the heater section 1300 may also include one or more internal heating elements and one or more external heating elements.

[0131] The heating element described above may include resistive materials and / or any material capable of inductive heating, or may be made of resistive materials and / or any material capable of inductive heating. However, it is not limited to this; any material can be used as long as it can be heated to the desired temperature under the control of the control unit 1200. The desired temperature may be preset in the aerosol generating device 1000, or it may be set by the user.

[0132] On the other hand, although Figure 3 The diagram shows the battery 1100, control unit 1200, and heater unit 1300 arranged in a row along the length direction, but the internal structure of the aerosol generating device 1000 is not limited to this. Figure 3 The example shown. In other words, the arrangement of the battery 1100, control unit 1200 and heater unit 1300 can be changed according to the design of the aerosol generating device 1000.

[0133] In the following text, reference will be made to Figure 4 and Figure 5 Description of the mixed aerosol generating apparatus 1000. For clarity of this disclosure, descriptions of repeating components 1100, 1200, and 1300 will be omitted.

[0134] like Figure 4 or Figure 5 As shown, the aerosol generating apparatus 1000 may also include a vaporizer 1400.

[0135] When the cigarette 2000 is inserted into the aerosol generating device 1000, the aerosol generating device 1000 can generate aerosol from the cigarette 2000 and / or the vaporizer 1400 by driving the heater section 1300 and / or the vaporizer 1400. The aerosol generated by the heater section 1300 and / or the vaporizer 1400 can be delivered to the user through the cigarette 2000. When the cigarette 2000 is inserted into the aerosol generating device 1000, the heating element of the heater section 1300 is arranged in contact with or adjacent to a portion of the outer side of the cigarette 2000, so as to externally increase the temperature of the aerosol forming substrate in the cigarette 2000.

[0136] The vaporizer 1400 can generate an aerosol by heating a liquid composition, and the generated aerosol can be delivered to the user via the cigarette 2000. In other words, the aerosol generated by the vaporizer 1400 can move along the airflow path of the aerosol generating device 1000, and the airflow path can be configured such that the aerosol generated by the vaporizer 1400 is delivered to the user via the cigarette 2000.

[0137] The vaporizer 1400 may include, but is not limited to, a liquid storage chamber, a liquid transfer unit, and a liquid heating element. For example, the liquid storage chamber, the liquid transfer unit, and the liquid heating element may be included as independent modules in the aerosol generating device 1000.

[0138] The reservoir can store a liquid composition (i.e., a liquid aerosol forming substrate). The reservoir can be made to be detachable from or installed on the vaporizer 1400, or it can be integrated with the vaporizer 1400.

[0139] Secondly, the liquid transfer unit can transfer the liquid composition in the storage chamber to the liquid heating element. For example, the liquid transfer unit can be a core such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not limited to these.

[0140] A liquid heating element is a component used to heat a liquid composition transferred by a liquid transfer unit. For example, the liquid heating element can be a metal heating wire, a metal heating plate, a ceramic heater, etc., but is not limited to these. Furthermore, the liquid heating element can be constructed from a conductive filament such as nickel-chromium wire, or it can be arranged in a structure wound around the liquid transfer unit. The liquid heating element can be heated by a current supply from the control unit 1200, and the liquid composition can be heated by transferring heat to the liquid composition in contact with the liquid heating element. As a result, an aerosol can be generated.

[0141] like Figure 4 or Figure 5 As shown, the vaporizer 1400 and the heater section 1300 can be arranged in parallel or in series. However, the scope of this disclosure is not limited to the above-described arrangement.

[0142] For reference, the vaporizer 1400 may be used interchangeably with terms in the art such as cartomizer or atomizer.

[0143] The control unit 1200 can further control the operation of the vaporizer 1400, and the battery 1100 can further supply power to enable the vaporizer 1400 to operate.

[0144] At this point, we have referred to Figures 3 to 5Various types of aerosol generating apparatus 1000 that can be applied to smoking articles 100 according to some embodiments of the present disclosure are described.

[0145] While embodiments of the present disclosure have been described above with reference to the accompanying drawings, those skilled in the art will understand that the present disclosure can be implemented in other specific forms without altering the technical concept or essential features. Therefore, it should be understood that the above embodiments are exemplary in all respects and not restrictive. The scope of protection of this disclosure should be determined by the claims and should be interpreted as including all technical ideas within its equivalent scope as falling within the scope of the technical ideas defined by this disclosure.

Claims

1. A smoking product, characterized in that, include: Medium section; The mouthpiece is arranged on one side, separated from the aforementioned medium section; A support structure is arranged between the aforementioned medium section and the aforementioned mouthpiece section; as well as A cooling structure is arranged between the aforementioned support structure and the aforementioned mouthpiece portion. The aforementioned mouthpiece portion includes a bundle of Lyocell fibers containing multiple Lyocell fibers.

2. The smoking product according to claim 1, characterized in that, The Lyocell bundles contain Lyocell fibers with deniers of 2 to 15, and the total deniers of the Lyocell bundles are 10,000 to 40,000.

3. The smoking product according to claim 1, characterized in that, Based on the length of the aforementioned mouthpiece of 12mm, the suction resistance of the aforementioned mouthpiece is 5mmWG to 14mmWG.

4. The smoking article according to claim 3, characterized in that, Based on the length of the aforementioned mouthpiece of 12mm, the suction resistance of the aforementioned mouthpiece portion is 6.2mmWG to 12mmWG.

5. The smoking article according to claim 1, characterized in that, The hardness of the aforementioned mouthpiece portion is 60% to 100%.

6. The smoking article according to claim 5, characterized in that, The hardness of the aforementioned mouthpiece portion is 85% to 95%.

7. The smoking article according to claim 1, characterized in that, The cooling structure has a tubular shape with an internal cavity, and the support structure has a tubular shape with an internal cavity. The cavities of the cooling structure and the support structure are connected.

8. The smoking article according to claim 7, characterized in that, The aforementioned support structure includes at least one of cellulose acetate, lyocell, or paper tube.

9. The smoking article according to claim 7, characterized in that, The aforementioned cooling structure includes at least one of a tubular structure made of paper material, a tubular structure made of cellulose acetate material, or a tubular structure made of lyocell material.

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