Smoking article comprising lyocell tow

Abstract

A smoking article is provided. The smoking article comprises: a tobacco rod; a front end plug disposed on one side of the tobacco rod; a first segment disposed on the other side opposite to the one side of the tobacco rod; and a second segment disposed on the other side of the first segment, wherein the second segment comprises a lyocell tow including a plurality of lyocell fibers.

Description

Smoking articles containing lyocell tow

[0001] The present invention relates to a smoking article that applies lyocell tow to a second segment constituting a filter portion of the smoking article, thereby preventing the tow of the second segment from melting and effectively reducing the heat generated during an initial puff, thereby providing a richer and improved smoking experience to the user.

[0002]

[0003] In smoking devices, the transfer of tobacco components (e.g., nicotine, tar) and the generation of vapor (atom) significantly impact the user's smoking experience. Typically, smoking devices operate by using a device to heat a stick to a high temperature of approximately 150-300°C. This heat is then transferred to a medium, which increases the temperature of the medium, allowing the smooth transfer of tobacco components such as nicotine. During this process, substances such as glycerin are heated to generate vapor, which is then delivered to the user for inhalation. However, if the device is set to a temperature below the boiling point of glycerin, atomization does not occur smoothly, limiting the transfer of tobacco components.

[0004] Meanwhile, the mouthpiece section has traditionally used cellulose acetate (hereinafter abbreviated as “CA”) tow to filter out components within the mainstream smoke. However, in the case of cellulose acetate (CA) tow, the CA tow melts or deforms at temperatures above approximately 70°C and then solidifies again, which hinders the smooth passage of smoke, generates an unpleasant odor, and prevents the filtering function from being properly performed.

[0005]

[0006] The problem to be solved by the present invention is to provide a smoking article that can provide a richer and improved smoking experience to the user by applying lyocell tow to the second segment constituting the filter portion of the smoking article, thereby preventing the tow of the second segment from melting and effectively reducing the heat sensation generated during the initial puff.

[0007] The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0008]

[0009] According to one aspect of the present application for solving the above problem, a smoking article comprises a tobacco rod, a shear plug arranged on one side of the tobacco rod, a first segment arranged on the other side of the tobacco rod opposite the one side, and a second segment arranged on the other side of the first segment, wherein the second segment comprises lyocell tow comprising a plurality of lyocell fibers. In some embodiments, the shear plug, the tobacco rod, the first segment, and the second segment may be arranged sequentially along the length direction of the smoking article.

[0010] In some embodiments, the single denier of the lyocell fibers included in the lyocell tow may be 2.22 to 16.67 dtex (mono denier of 2 to 15), and the total denier of the lyocell tow may be 1,111 to 4,444 tex (total denier of 10,000 to 40,000).

[0011] In some embodiments, the suction resistance of the second segment may be 5 mmWG to 20 mmWG based on a length of 14 mm of the second segment.

[0012] In some embodiments, the suction resistance of the second segment may be 8 mmWG to 17 mmWG based on a length of 14 mm of the second segment.

[0013] In some embodiments, the shear plug may comprise at least one of cellulose acetate and lyocell.

[0014] In some embodiments, the shear plug may include at least one channel therein. At least one of the channels may extend longitudinally. At least one of the channels may extend longitudinally parallel to the longitudinal axis.

[0015] In some embodiments, the hardness of the second segment may be between 60% and 100%.

[0016] In some embodiments, the hardness of the second segment may be between 85% and 95%.

[0017] In another aspect of the present application, a system is provided comprising the smoking article described above and an aerosol generating device applying the same.

[0018]

[0019] According to a smoking article according to one embodiment, by applying lyocell tow to a second segment constituting a filter portion of the smoking article, the tow of the second segment is prevented from melting, and the heat sensation generated during the initial puff is effectively reduced, thereby providing a richer and improved smoking experience to the user.

[0020] The effects according to the technical idea of ​​the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

[0021]

[0022] Figures 1 to 3 are drawings illustrating examples of smoking articles inserted into an aerosol generating device.

[0023] FIG. 4 is a drawing illustrating a smoking article according to one embodiment.

[0024]

[0025] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the attached drawings. The advantages and features of the present disclosure, and methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the attached drawings. However, the technical idea of ​​the present disclosure is not limited to the following embodiments and may be implemented in various different forms. The following embodiments are provided only to complete the technical idea of ​​the present disclosure and to fully inform those skilled in the art of the present disclosure of the scope of the present disclosure, and the technical idea of ​​the present disclosure is defined only by the scope of the claims.

[0026] When assigning reference numerals to components in each drawing, it should be noted that identical components are assigned the same numerals whenever possible, even if they appear on different drawings. Furthermore, when describing the present disclosure, if a detailed description of a related known configuration or function is deemed likely to obscure the gist of the present disclosure, such detailed description will be omitted.

[0027] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in the same sense as commonly understood by those of ordinary skill in the art to which this disclosure pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. The terminology used herein is for the purpose of describing embodiments and is not intended to limit the disclosure. In this specification, singular forms also include plural forms, unless specifically stated otherwise.

[0028] Additionally, terms such as first, second, A, B, (a), (b), etc. may be used to describe components of the present disclosure. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not limited by the terms. When a component is described as being "connected," "coupled," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but another component may also be "connected," "coupled," or "connected" between each component.

[0029] As used herein, the terms “comprises” and / or “comprising” do not exclude the presence or addition of one or more other components, steps, operations, and / or elements.

[0030] First, let's clarify some terms used in this specification.

[0031] As used herein, the term "smoking article" may mean any smokeable product or any product capable of providing a smoking experience, whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. For example, smoking articles may include smokeable products such as cigarettes, cigars, and cigarillos.

[0032] In this specification, “smoking material” may mean any type of material that can be used in smoking articles.

[0033] In this specification, the term “user” may be used interchangeably with “consumer.”

[0034] In this specification, “upstream” or “upstream direction” may mean a direction away from the smoker’s mouth, and “downstream” or “downstream direction” may mean a direction approaching the smoker’s mouth.

[0035] As used herein, the term "longitudinal direction" may refer to a direction corresponding to the longitudinal axis of a smoking article. The "longitudinal axis" of a smoking article may refer to an imaginary line extending along the main longitudinal direction of the smoking article. This axis typically extends from one end of the smoking article (e.g., the mouthpiece or filter end) to the opposite end (e.g., the combustion or heat source end).

[0036] As used herein, “lyocell filter” refers to a filter comprising or consisting of lyocell tow.

[0037] As used herein, “Lyocell tow” refers to a bundle comprising or consisting of a plurality of Lyocell fibers. In some embodiments, Lyocell tow may refer to a bundle formed by cross-linking adjacent Lyocell fibers.

[0038] As used herein, “Lyocell fiber” may mean a fiber made from lyocell cellulose. In particular, the lyocell fiber may be a fiber made from cellulose derived from or primarily derived from wood pulp, particularly a semi-synthetic fiber.

[0039] As used herein, the term "non-circular cross-section" is defined as a cross-section whose shape is not circular but includes a plurality of protrusions. For example, a cross-section in which a plurality of protrusions branch and / or extend from the center and / or the center of the cross-section may be referred to as a non-circular cross-section. Here, "protrusion" may mean a distinct, extended segment or arm extending outward from the central core or joint point of the lyocell fiber cross-section.

[0040] In some embodiments, the lyocell fibers may have a Y-shaped cross-section with three protrusions branching and / or extending from the center and / or center of the cross-section, a cruciform cross-section with four protrusions, and / or a star-shaped cross-section with five or more protrusions, or may have an O-shaped cross-section, but are not limited thereto.

[0041] In some embodiments, the lyocell fibers may include three or more protrusions branching and / or extending from the center and / or the center of the cross-section.

[0042]

[0043] *In some embodiments, the lyocell fibers included in the lyocell tow may have a Y-shaped cross-section for use in cigarette filters.

[0044] In this specification, “hollow” may mean a channel extending along the longitudinal direction.

[0045] In the present specification, the cross-sectional shape of a channel formed inside a shear plug, which is "trilobal," "quadrilobal," or "multilobal," may refer to a cross-section having three, four, or more protrusions branching and / or extending from the center of the channel cross-section, respectively. Here, "protrusion" may mean a distinct, extended segment or arm extending outward from the central core or junction point of the channel cross-section.

[0046] In this specification, "consisting of" an element may mean including or consisting of that element.

[0047] In this specification, a “tubular type rod” as a filter rod may refer to a filter rod that includes a hollow space inside, while a filter rod that does not include a hollow space inside may be referred to as a “cylindrical type rod.”

[0048] In this specification, a “recess-type rod” as a filter rod may refer to a filter rod having one or more pores.

[0049] In this specification, a “recess filter” as a filter may refer to a filter having one or more pores.

[0050] In this specification, “wrapping” of a smoking article by a wrapper may refer to the wrapping of at least a portion of the periphery surface of the longitudinal axis of each part, segment and / or structure of the smoking article by the wrapper.

[0051] In this specification, "basis weight" refers to the mass per unit area of ​​the paper and / or wrapper. The basis weight of the paper and / or wrapper can be determined by measuring the mass and area of ​​the paper and / or wrapper and dividing the mass of the paper and / or wrapper by the area. The unit of basis weight is gsm (gram per square meter), i.e. g / m 2 It could be.

[0052] In this specification, “hard paper” refers to paper having a basis weight greater than a certain value.

[0053] In some embodiments, “oil-resistant paper” may refer to paper having an oil-resistant treatment on the paper surface, and “oil-resistant hard paper” may refer to hard paper having an oil-resistant treatment on the paper surface.

[0054] In some embodiments, “general paper” may refer to paper whose surface has not been treated with an oil-resistant coating, and “general hard paper” may refer to hard paper whose surface has not been treated with an oil-resistant coating.

[0055] In this specification, the “single fiber” of lyocell tow or cellulose acetate tow means the fiber size of a single strand of monofilament separated from a multifilament of lyocell fibers or cellulose acetate fibers constituting the lyocell tow or cellulose acetate tow.

[0056] In this specification, the “total fineness” of lyocell tow or cellulose acetate tow means the fineness of the multifilaments of lyocell fibers or cellulose acetate fibers constituting the lyocell tow or cellulose acetate tow.

[0057] In this specification, the hardness of each part (piece), segment and / or structure (e.g., the second segment) of the smoking article is a value that quantifies the degree to which the diameter of the object is maintained when the object is pressed with a certain level of force in a direction perpendicular to the longitudinal direction of the object, and may be a percentage of the diameter of the object after the force is applied compared to the diameter of the object before the force is applied. For example, the hardness (%) of the object can be calculated as (Da) / D × 100%. Here, D is the diameter of the object, and a represents the distance lowered (i.e., the object is pressed) by a weight of 300 g. The measurement value required in calculating the hardness is, for example, a DHT 200 of Filtrona. TM can be obtained using. In measuring hardness, the force applied to the object can be considered as a value equivalent to the force applied to the smoking article by an actual user (e.g., when holding it).

[0058] A filter of a smoking article according to one aspect of the present invention can capture at least a portion of smoke components generated when smoking the smoking article. In some embodiments, the filter of the smoking article can capture particulate matter (total particulate matter (TPM)) including at least a portion of at least one of nicotine (hereinafter abbreviated as “Nic”), tar, propylene glycol (hereinafter abbreviated as “PG”), and glycerin (hereinafter abbreviated as “Gly”) contained in the smoke components generated when smoking the smoking article.

[0059] In this specification, “suction resistance” means the static pressure difference between the two ends of a sample when an airflow crosses the sample. In this specification, “PDC” means the value of the suction resistance measured when the medium part is open, the perforations of the filter part are blocked, and the inflow of outside air is blocked, and “PDO” means the value of the suction resistance measured when the medium part is open, the perforations of the filter part are not blocked, and the inflow of outside air is allowed. For example, the suction resistance can be measured using the method specified in ISO standard 6565:2015. According to ISO standard 6565:2015, the suction resistance can mean the static pressure difference between the two ends of a sample when it is crossed by an airflow under normal conditions (22±2℃, 60±5% relative humidity) with a volumetric flow rate of 17.5 mm / s at the discharge end.

[0060] In this specification, organic acid is a general term for organic compounds that are acidic.

[0061] In some embodiments, room temperature may mean 20° C. to 25° C.

[0062] In this specification, when no separate physical quantity is indicated, component % and component ratio mean weight % of component and weight ratio of component, respectively.

[0063] As used herein, "puff" refers to the act of inhaling or drawing air through a smoking article to produce and inhale smoke or vapor. "Puff count" may refer to the total number of inhalations or draws made while using the smoking article. Alternatively, or in addition, the puff count may refer to the maximum number of inhalations or draws that the smoking article can provide before being completely consumed or ceases to function.

[0064] In this specification, the HC (Health Canada) conditions may be conditions in which the puff volume per puff is 55 ml, the puff frequency is every 30 seconds, and the puff duration is 2 seconds. In particular, the HC conditions may be conditions in which the perforations of the filter are blocked. The number of puffs measured under the HC conditions may be conditions in which 9 puffs are taken.

[0065] In this specification, the "ventilation rate (hereinafter may be abbreviated as "Vent")" of a smoking article may be defined as the ratio, expressed as a percentage, of the total volumetric flow rate (e.g., ml / s) of air that enters the smoking article without being burned or heated, i.e., through the front area of ​​the smoking article, i.e., the longitudinal upstream end, to the total volumetric flow rate (e.g., ml / s) of air at the exit of the smoking article, i.e., the longitudinal downstream end. For example, the ventilation rate may be measured according to ISO 9512:2019. For example, the total volumetric flow rate of air that enters the smoking article without being burned or heated, i.e., through the front area of ​​the smoking article, may be the total volumetric flow rate of air that enters in a direction perpendicular to the longitudinal direction of the smoking article. For example, the total volumetric flow rate of air that enters the smoking article without being burned or heated, i.e., through the wrapper, may be the total volumetric flow rate of air that enters the smoking article through the wrapper.

[0066] The content of components in the total particulate matter (TPM) of the captured smoke can be analyzed using GC / MS (gas chromatography-mass spectrometry). For example, in the case of tar or nicotine, the Cambridge filter (Cambridge Felter Pad (CFP)) containing the smoke components is immersed in IPA (Isopropyl Alcohol) for a specified period of time (e.g., 20 minutes to 16 hours), and in the case of PG and Gly, the Cambridge filter (Cambridge Felter Pad (CFP)) containing the smoke components is immersed in methanol for a specified period of time (e.g., 2 hours to 16 hours), and then treated with a shaker device and passed through a PTFE (Polytetrafluoroethylene) syringe filter to remove impurities. Then, the content of components contained in the total particulate matter (TPM) of the captured smoke can be measured using GC / MS equipment. The soaking time may be more than 20 minutes, especially for tar or nicotine, and more than 2 hours for PG and Gly.

[0067] The above GC / MS may be, for example, a measuring device from Agilent.

[0068] In this specification, the unit "mmWG" means "mmH2O" as a unit of pressure.

[0069]

[0070] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the attached drawings.

[0071]

[0072] Figures 1 to 3 are drawings illustrating examples of smoking articles inserted into an aerosol generating device.

[0073] Referring to Fig. 1, the aerosol generating device (1) includes a battery (11), a control unit (12), and a heater (13). Referring to Figs. 2 and 3, the aerosol generating device (1) further includes a vaporizer (14). In addition, a smoking article (3) can be inserted into the internal space of the aerosol generating device (1).

[0074] The aerosol generating device (1) illustrated in FIGS. 1 to 3 illustrates components related to the present embodiment. Accordingly, a person skilled in the art related to the present embodiment will understand that, in addition to the components illustrated in FIGS. 1 to 3, the aerosol generating device (1) may further include other general-purpose components.

[0075]

[0076] In addition, although FIGS. 2 and 3 illustrate that the aerosol generating device (1) includes a heater (13), the heater (13) may be omitted if desired. In some embodiments, the aerosol generating device (1) does not include a heater. In some embodiments, the battery (11), the control unit (12), and the vaporizer (14) are arranged sequentially, i.e., in a row, along the length of the smoking article (3).

[0077] In FIG. 1, a battery (11), a control unit (12), and a heater (13) are illustrated as being arranged in a row. In some embodiments, the battery (11), the control unit (12), and the heater (13) are sequentially arranged along the longitudinal direction of the smoking article (3). In addition, FIG. 2 illustrates that the battery (11), the control unit (12), the vaporizer (14), and the heater (13) are arranged in a row along the longitudinal direction of the smoking article (3). In addition, FIG. 3 illustrates that the vaporizer (14) and the heater (13) are arranged in parallel. However, the internal structure of the aerosol generating device (1) is not limited to that illustrated in FIGS. 1 to 3. In other words, depending on the design of the aerosol generating device (1), the arrangement of the battery (11), the control unit (12), the heater (13), and the vaporizer (14) may be changed.

[0078] When a smoking article (3) is inserted into an aerosol generating device (1), the aerosol generating device (1) can generate an aerosol by operating a heater (13) and / or a vaporizer (14). The aerosol generated by the heater (13) and / or the vaporizer (14) passes through the smoking article (3) and is delivered to the user.

[0079] If necessary, the aerosol generating device (1) can heat the heater (13) even when the smoking article (3) is not inserted into the aerosol generating device (1).

[0080] The battery (11) supplies power used to operate the aerosol generating device (1). For example, the battery (11) can supply power so that the heater (13) and / or the vaporizer (14) can be heated, and can supply power required for the control unit (12) to operate. In particular, the battery (11) can supply power required for the operation of the display, sensor, motor, etc. installed in the aerosol generating device (1).

[0081] The control unit (12) controls the overall operation of the aerosol generating device (1). In particular, the control unit (12) controls the operation of the battery (11), heater (13), and vaporizer (14) as well as other components included in the aerosol generating device (1). In particular, the control unit (12) can also check the status of each component of the aerosol generating device (1) to determine whether the aerosol generating device (1) is in an operable state.

[0082] The control unit (12) includes at least one processor. The processor may be implemented as an array of multiple logic gates, or as a combination of a general-purpose microprocessor and a memory storing a program executable on the microprocessor. Furthermore, those skilled in the art will appreciate that the processor may be implemented using other types of hardware.

[0083] The heater (13) can be heated by power supplied from the battery (11). For example, when the smoking article (3) is inserted into the aerosol generating device (1), the heater (13) can be located outside the smoking article (3). Accordingly, the heated heater (13) can increase the temperature of the aerosol generating material within the smoking article (3).

[0084] The heater (13) may be an electrical resistance heater. For example, the heater (13) may include an electrically conductive track, and the heater (13) may be heated as current flows through the electrically conductive track. However, the heater (13) is not limited to the above-described example, and any heater capable of heating to a desired temperature may be used without limitation. Here, the desired temperature may be preset in the aerosol generating device (1), or may be set to a desired temperature by the user.

[0085] Meanwhile, as another example, the heater (13) may be an induction heating heater. In particular, the heater (13) may include an electrically conductive coil for heating the smoking article (3) by induction heating, and the smoking article (3) may include a susceptor that can be heated by the induction heating heater.

[0086] For example, the heater (13) may include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, and / or a rod-shaped heating element, and may heat the inside and / or the outside of the smoking article (3) depending on the shape of the heating element.

[0087] In particular, a plurality of heaters (13) may be arranged in the aerosol generating device (1). At this time, the plurality of heaters (13) may be arranged to be inserted into the interior of the smoking article (3) or may be arranged on the exterior of the smoking article (3). In particular, some of the plurality of heaters (13) may be arranged to be inserted into the interior of the smoking article (3), and the rest may be arranged on the exterior of the smoking article (3). In some embodiments, the heater (13) may heat the interior and the exterior of the smoking article (3). In particular, the shape of the heater (13) is not limited to the shape illustrated in FIGS. 1 to 3, and may be manufactured in various shapes. In some embodiments, the heater (13) may include an electrical resistance heater and an induction heating heater.

[0088] The vaporizer (14) can generate an aerosol by heating the liquid composition, and the generated aerosol can be delivered to the user by passing through the smoking article (3). In other words, the aerosol generated by the vaporizer (14) can travel along the airflow passage of the aerosol generating device (1), and the airflow passage can be configured so that the aerosol generated by the vaporizer (14) can pass through the smoking article (3) and be delivered to the user. The vaporizer (14) can generate an aerosol by heating the liquid composition, and can emit the aerosol toward the smoking article so that the aerosol passes through the smoking article inserted into the smoking article insertion portion.

[0089] For example, the vaporizer (14) may include, but is not limited to, a liquid storage unit, a liquid delivery means, and a heating element. For example, the liquid storage unit, the liquid delivery means, and the heating element may be included in the aerosol generating device (1) as independent modules.

[0090] The liquid reservoir can store a liquid composition. For example, the liquid composition can be a liquid containing a tobacco-containing substance including a volatile tobacco flavoring component, or alternatively, or in addition, a liquid containing a non-tobacco substance. The liquid reservoir can be constructed to be detachable from / attached to the vaporizer (14), or can be constructed integrally with the vaporizer (14).

[0091] For example, the liquid composition may include water, a solvent, ethanol, a plant extract, a fragrance, a flavoring agent, and / or a vitamin mixture. The flavoring agent may include, but is not limited to, menthol, peppermint oil, spearmint oil, and / or various fruit-flavored ingredients. The flavoring agent may include ingredients that can provide a variety of flavors and / or tastes to the user. The vitamin mixture may include, but is not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. In particular, the liquid composition may include an aerosol-forming agent such as glycerin and propylene glycol.

[0092] The liquid delivery means can deliver the liquid composition from the liquid storage to the heating element. For example, the liquid delivery means can be, but is not limited to, a wick such as cotton fibers, ceramic fibers, glass fibers, and / or porous ceramics.

[0093] A heating element is an element for heating a liquid composition delivered by a liquid delivery means. For example, the heating element may include, but is not limited to, a metal heating wire, a metal heating plate, and / or a ceramic heater. In particular, the heating element may be composed of a conductive filament, such as a nichrome wire, and may be arranged in a structure that is wound around the liquid delivery means. The heating element may be heated by a current supply and may transfer heat to the liquid composition in contact with the heating element, thereby heating the liquid composition. As a result, an aerosol may be generated.

[0094] For example, the vaporizer (14) may be referred to as a cartomizer or an atomizer, but is not limited thereto.

[0095] Meanwhile, the aerosol generating device (1) may further include general-purpose components in addition to the battery (11), the control unit (12), the heater (13), and the vaporizer (14). For example, the aerosol generating device (1) may include a display capable of outputting visual information and / or a motor for outputting tactile information. In particular, the aerosol generating device (1) may include at least one sensor (a puff detection sensor, a temperature detection sensor, and / or a smoking article insertion detection sensor, etc.). In particular, the aerosol generating device (1) may be manufactured in a structure in which external air can be introduced or internal gas can be discharged even when the smoking article (3) is inserted.

[0096] Although not illustrated in FIGS. 1 to 3, the aerosol generating device (1) may also be configured as a system with a separate cradle. For example, the cradle may be used to charge the battery (11) of the aerosol generating device (1). Alternatively, or in addition, the heater (13) may be heated while the cradle and the aerosol generating device (1) are combined.

[0097] The smoking article (3) may be similar to a typical combustion-type smoking article. For example, the smoking article (3) may be divided into a tobacco rod (31) containing tobacco material and an aerosol-generating substance, and a filter rod (32) containing a filter or the like. Optionally, the filter rod (32) of the smoking article (3) may also contain an aerosol-generating substance. For example, an aerosol-generating substance in the form of granules and / or capsules may be inserted into the tobacco rod (31) and optionally into a portion of the filter rod (32).

[0098] The entire tobacco rod (31) may be inserted into the aerosol generating device (1), and the filter rod (32) may be exposed to the outside. Alternatively, only a portion of the tobacco rod (31) may be inserted into the aerosol generating device (1), or the entire tobacco rod (31) and a portion of the filter rod (32) may be inserted. The user may inhale the aerosol while holding the filter rod (32) in his or her mouth. At this time, the aerosol is generated by external air passing through the tobacco rod (31), and the generated aerosol is delivered to the user's mouth through the filter rod (32).

[0099]

[0100] In some embodiments, outside air may be introduced through at least one air passage formed in the aerosol generating device (1). For example, the opening and / or the size of the air passage formed in the aerosol generating device (1) may be controlled by the user. Accordingly, the amount of vapor, the smoking sensation, etc. may be controlled by the user. As another example, outside air may be introduced into the interior of the smoking article (3) through at least one hole formed in the surface of the smoking article (3).

[0101]

[0102] Hereinafter, the structure of the smoking article will be described with reference to Fig. 4.

[0103]

[0104] Referring to FIG. 4, the smoking article (3) includes a tobacco rod (31), a filter rod (32), and a shear plug (33). The tobacco rod (31) includes tobacco material and an aerosol generating material. The tobacco material may be tobacco.

[0105] In some embodiments, in a smoking article, a shear plug (33), a tobacco rod (31) and a filter rod (32) are sequentially arranged along the length of the smoking article (3).

[0106]

[0107] The filter rod (32) may be adjacent to one side of the tobacco rod (31) or the rear end (i.e., the downstream end) of the tobacco rod (31). The filter rod (32) may include a first segment (321) for cooling the aerosol and a second segment (322) for filtering a predetermined component contained in the aerosol. In some embodiments, the first segment (321) is positioned between the tobacco rod (31) and the second segment (322). In the present specification, in order to emphasize the function of the first and second segments (321, 322) as filters, the first segment (321) may be referred to as a cooling structure (321), and the second segment (322) may be referred to as a mouthpiece portion (322).

[0108]

[0109] The shear plug (33) may be located on one side of the tobacco rod (31) facing the filter rod (32) or on the other side opposite to one side of the tobacco rod (31). The shear plug (33) may be adjacent to the front end (i.e., the upstream end) of the tobacco rod (31). The shear plug (33) may prevent the tobacco rod (31) from escaping to the outside and may prevent the liquefied aerosol from the tobacco rod (31) from flowing into the aerosol generating device (designator '1' in FIGS. 1 to 3) during smoking.

[0110]

[0111] The smoking article (3) may be wrapped by at least one wrapper (35). The wrapper (35) may surround the smoking article (3). In some embodiments, the smoking article (3) may be wrapped by at least one wrapper (35) surrounding at least a portion of the smoking article (3). For example, the shear plug (33) may be wrapped by a first wrapper (351), the tobacco rod (31) may be wrapped by a second wrapper (352), the first segment (321) may be wrapped by a third wrapper (353), and the second segment (322) may be wrapped by a fourth wrapper (354). Optionally, the entire smoking article (3) may be rewrapped by a fifth wrapper (355). That is, the entire smoking article (3) wrapped by at least one of the first to third wrappers may be further wrapped by the fifth wrapper (355). The fifth wrapper (355) may be referred to as an outer wrapper, and the first wrapper (351), second wrapper (352), third wrapper (353), and fourth wrapper (354) surrounded by the fifth wrapper (355) may be referred to as inner wrappers.

[0112] The diameter of the smoking article (3) may be within the range of 5 mm to 9 mm, but is not limited thereto. For example, the length of the shear plug (33) may be about 4 mm to 20 mm (e.g., 7 mm), the length of the tobacco rod (31) may be about 13 mm to 17 mm (e.g., 15 mm), the length of the first segment (321) may be about 7 mm to 20 mm (e.g., 12 mm), and the length of the second segment (322) may be about 4 mm to 20 mm (e.g., 14 mm), but is not limited thereto.

[0113] The tobacco rod (31) may contain, for example, at least one of aerosol generating substances such as glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but is not limited thereto. In particular, the tobacco rod (31) may contain at least one other additive substance such as a flavoring agent, a humectant, and / or an organic acid. In particular, a flavoring liquid including menthol and / or a humectant may be added to the tobacco rod (31). In particular, the flavoring liquid including menthol and / or a humectant may be added by being sprayed onto the tobacco rod (31).

[0114] The tobacco rod (31) can be manufactured in various ways. For example, the tobacco rod (31) may be manufactured as a sheet, or alternatively, or in addition, may be manufactured as a strand. Alternatively, or in addition, the tobacco rod (31) may be manufactured from cut tobacco sheets that have been finely chopped. In some embodiments, the tobacco rod (31) may be manufactured from strands and cut tobacco sheets that have been finely chopped. In particular, the tobacco rod (31) may be manufactured by including at least one of tobacco particles, tobacco sheets, tobacco beads, tobacco granules, and tobacco powder. When the tobacco rod (31) includes tobacco granules or the like, it may further include paper and / or lyocell tow and / or cellulose acetate tow for fixing the tobacco granules or the like.

[0115]

[0116] There is no limitation on the shape of the filter rod (32). For example, the filter rod (32) may be a cylindrical rod or a tubular rod having a hollow portion therein. In addition, the filter rod (32) may be a recessed rod. If the filter rod (32) is composed of a plurality of segments, at least one of the segments may be manufactured to have a different shape from the other segments.

[0117]

[0118] Below, each segment of the filter load (32) is described in detail.

[0119]

[0120] The first segment (321) of the filter rod (32) can cool the aerosol generated by the heater (13) heating the tobacco rod (31). Accordingly, the user can inhale the aerosol cooled to an appropriate temperature.

[0121]

[0122] In some embodiments, the first segment (321) of the filter rod (32) may be a cellulose acetate filter, a paper tube, and / or a lyocell filter composed of lyocell tow including a plurality of lyocell fibers. When the first segment (321) is a cellulose acetate filter and / or a lyocell filter, the first segment (321) may be a tubular structure having a hollow portion therein. The hollow portion may extend along the longitudinal direction of the first segment (321). The hollow portion may be located at the center of a cross-section perpendicular to the longitudinal direction of the first segment (321) and may extend along the longitudinal direction of the first segment (321). The hollow portion and the first segment (321) may have a coaxial structure along the longitudinal direction. The length and / or diameter of the first segment (321) may be variously determined depending on the shape of the smoking article (3). For example, the length of the first segment (321) may be appropriately adopted within the range of 7 mm to 20 mm. Preferably, the length of the first segment (321) may be about 12 mm, but is not limited thereto.

[0123] When the tobacco rod (31) is inserted into the heater (13) by the first segment (321), the phenomenon of the internal material of the tobacco rod (31) being pushed backward (i.e., in the opposite direction to the insertion direction) can be prevented, and a cooling effect of the aerosol can also be generated. When the first segment (321) is a cellulose acetate filter having a hollow space inside, the diameter of the hollow space of the first segment (321) is smaller than the outer diameter of the first segment (321) and the diameter of the smoking article (3), and can be suitably employed in the range of 2 mm to 5.5 mm, and when the first segment (321) is a lyocell filter having a hollow space inside, the diameter of the hollow space of the first segment (321) is smaller than the outer diameter of the first segment (321) and the diameter of the smoking article (3), and can be suitably employed in the range of 2 mm to 5.5 mm, and can be suitably employed in the range of 2 mm to 5.5 mm, preferably 2.1 mm to 5 mm, more preferably 2.2 mm to 4.5 mm, and even more preferably 2.5 mm to 4 mm, but is not limited thereto. When the first segment (321) is a pipe filter, the inner diameter is smaller than the outer diameter of the first segment (321) and the diameter of the smoking article (3), and an appropriate value may be adopted within the range of 5 mm to 7.5 mm, more preferably 6 mm to 7 mm, but is not limited thereto.

[0124] When the first segment (321) is composed of lyocell tow, the excellent heat resistance of the lyocell tow can effectively prevent or minimize deformation of the first segment (321) due to heat transferred from a heater that heats the smoking article (3) or an aerosol generated within the smoking article (3).

[0125]

[0126] The second segment (322) of the filter rod (32) can cool the aerosol generated by the heater (13) heating the tobacco rod (31). Accordingly, the user can inhale the aerosol cooled to an appropriate temperature. In particular, the second segment (322) can serve as a mouthpiece that comes into contact with the user's mouth and as a filter that ultimately delivers the aerosol delivered from upstream to the user.

[0127] In one embodiment, the second segment (322) of the filter rod (32) may be a lyocell filter composed of lyocell tow including a plurality of lyocell fibers. The length of the second segment (322) may be suitably adopted within the range of 4 mm to 20 mm. For example, the length of the second segment (322) may be about 14 mm, but is not limited thereto.

[0128] In the present invention, the lyocell fibers included in the second segment (322) may be environmentally friendly fibers made from cellulose extracted from wood pulp. The lyocell tow may refer to a bundle formed by cross-linking adjacent lyocell fibers.

[0129] In some embodiments, lyocell fibers may have a non-circular cross-section. A non-circular cross-section is defined as a cross-section that is not circular but includes multiple protrusions. For example, a cross-section having multiple protrusions extending from a center may be considered non-circular.

[0130] In some embodiments, the lyocell fibers may have a Y-shaped cross-section with three protrusions branching from the center, a cross-shaped cross-section with four protrusions, a star-shaped cross-section with five or more protrusions, or an O-shaped cross-section, but are not limited thereto.

[0131] In some embodiments, the mono denier of the lyocell fibers included in the second segment (322) may range from 2.22 to 16.67 dtex (2 to 15 denier), preferably from 2.44 to 15.56 dtex (2.2 to 14 denier), more preferably from 2.78 to 14.44 dtex (2.5 to 13 denier), and even more preferably from 3.33 to 13.33 dtex (3 to 12 denier). In some embodiments, the second segment (322) may comprise lyocell tow having a total denier of 1,111 to 4,444 tex (10,000 to 40,000 denier), preferably 2,222 to 4,333 tex (20,000 to 39,000 denier), more preferably 2,778 to 4,222 tex (25,000 to 38,000 denier).

[0132] In some embodiments, the suction resistance of the second segment (322) may range from 5 mmWG to 20 mmWG, preferably from 6 mmWG to 19 mmWG, more preferably from 7 mmWG to 18 mmWG, and even more preferably from 8 mmWG to 17 mmWG, based on a length of 14 mm of the second segment (322). In some embodiments, the suction resistance of the second segment (322) may range from 8.5 mmWG to 9.5 mmWG, from 11.5 mmWG to 12.5 mmWG, or from 15.5 mmWG to 16.5 mmWG, and preferably from 15.7 mmWG to 16.2 mmWG, based on a length of 14 mm of the second segment (322). By having the aspiration resistance in the above range, the amount of moisture transfer in the aerosol generated during smoking can be reduced, so that the heat sensation of the smoker's initial puff can be reduced and the nicotine removal ability in the aerosol can be improved.

[0133] Hardness is a property related to the elasticity and resilience of the second segment (322), and refers to the degree to which the second segment (322) resists pressure applied in a direction perpendicular to the length. In order for the smoking article to maintain its shape and be easily used by the user, it is desirable to maintain a certain level of hardness.

[0134] In some embodiments, the hardness of the second segment (322) may be, but is not limited to, 60% to 100%, preferably 70% to 99%, more preferably 75% to 98%, more preferably 80% to 97%, and more preferably 85% to 95%. The hardness of the second segment (322) is a value that quantifies the degree to which the diameter of the second segment (322) is maintained when the second segment (322) is pressed with a certain level of force in a direction perpendicular to the longitudinal direction of the second segment (322), and may be a value that is a percentage ratio between the diameter of the second segment (322) before applying the force and the diameter of the second segment (322) after applying the force.

[0135] The circumference of the cross-section perpendicular to the longitudinal direction of the smoking article (3) of the second segment (322) may be 14 to 25 mm, preferably 22 to 23 mm, but is not limited thereto.

[0136] In some embodiments, the second segment (322) may further comprise at least one binder dispersed in the lyocell tow. The second segment (322) may achieve a desired hardness by further comprising at least one binder dispersed in the lyocell tow.

[0137]

[0138] The shear plug (33) can serve to prevent the liquefied aerosol from the tobacco rod (31) from flowing into the aerosol generating device (designator '1' in FIGS. 1 to 3) during smoking.

[0139] The length and / or diameter of the shear plug (33) may vary depending on the shape of the smoking article (3). For example, the length of the shear plug (33) may be appropriately selected within the range of 4 mm to 20 mm. Preferably, the length of the shear plug (33) may be approximately 7 mm, but is not limited thereto.

[0140]

[0141] The shear plug (33) may be manufactured to include or consist of cellulose acetate and / or lyocell. In particular, the shear plug (33) may include at least one channel therein, and the cross-sectional shape of the channel may be manufactured in various ways. For example, the cross-sectional shape of the channel formed inside the shear plug (33) may be formed in various shapes, such as trilobal, tetralobal, multilobal, polygonal, and / or hard shapes.

[0142]

[0143] Below, the wrapper (35) is described in detail.

[0144]

[0145] The first wrapper (351) may be a general filter paper combined with a metal foil, such as aluminum foil. In some embodiments, the first wrapper (351) may be a general filter paper combined with aluminum foil. The second wrapper (352) and the third wrapper (353) may be made of general filter paper. For example, the second wrapper (352) and the third wrapper (353) may each independently be a porous paper or a non-porous paper.

[0146] In some embodiments, the fourth wrapper (354) surrounding the second segment (322) may have a basis weight greater than or equal to a predetermined value and may be composed of (i.e., manufactured from) at least one of an oil-resistant hard paper having an oil-resistant treatment and a general hard paper having no oil-resistant treatment. Meanwhile, since the fourth wrapper (354) is composed of a hard paper having a basis weight greater than or equal to a predetermined value, it may not only function as a packaging material surrounding the second segment (322) including lyocell tow, but also function to impart a certain level of hardness or greater to the filter rod (32) according to the present invention. The fourth wrapper (354) may include a grease-resistant hard paper and / or a general hard paper other than a grease-resistant hard paper, and may include a paper having a basis weight of, but not limited to, 30 gsm to 180 gsm, preferably 35 gsm to 170 gsm, more preferably 40 gsm to 160 gsm, even more preferably 50 gsm to 158 gsm, even more preferably 60 gsm to 155 gsm, even more preferably 70 gsm to 150 gsm, and even more preferably 75 gsm to 150 gsm.

[0147]

[0148] Below, the composition and resulting effects of the present invention will be described in more detail through examples and comparative examples. However, these examples are intended to illustrate the present invention more specifically, and the scope of the present invention is not limited to these examples.

[0149]

[0150] Example 1

[0151] A smoking article having a structure as shown in Fig. 1, comprising a shear plug having a length of 7 mm, a tobacco rod containing tobacco material having a length of 15 mm, a first segment comprising a pipe filter having an inner diameter of 6 mm and a length of 12 mm, and a second segment roll comprising lyocell tow having a length of 14 mm, was manufactured under the conditions as shown in Example 1 of Table 1.

[0152]

[0153] Comparative Example 1

[0154] A smoking article was manufactured under the same conditions as in Example 1, Comparative Example 1 in Table 1, except that the second segment was manufactured using cellulose acetate tow.

[0155]

[0156] ClassificationWeight(mg)Circumference(mm)Vent(%)PDO(mmH20)PDC(mmH20)Example 1616.322.658.01121.8156.4Comparative example 1604.922.657.17118.6151.4

[0157] (In Table 1 above, PDC refers to the value of suction resistance measured when the tobacco rod is open, the perforation of the filter rod is blocked, and the inflow of external air is blocked; PDO refers to the value of suction resistance measured when the tobacco rod is open, the perforation of the filter rod is not blocked, and the inflow of external air is blocked; and Vent refers to the ventilation rate (VR).)

[0158] Experimental Example 1. Measurement of mainstream smoke temperature by puff according to the material of the second segment.

[0159]

[0160] In order to compare the mainstream smoke temperature per puff of the smoking articles of Example 1 and Comparative Example 1, the tobacco rods of the smoking articles according to Example 1 and Comparative Example 1 were heated at a heating temperature of 190°C to 280°C using an external heating method, and the temperature of the generated mainstream smoke was measured, and is shown in Table 2 below.

[0161] In particular, the experiment was conducted in a smoking room (specifically, a temperature of about 21.9°C and a relative humidity of 64.3%) with an internal temperature of about 22±2°C and an internal relative humidity of about 60±5%, targeting smoking articles according to Comparative Example 1 and Example 1, and the smoking conditions were HC conditions (Puff volume: 55 ml / Puff frequency: 30 s / Puff duration: 2 s / Number of puffs: 9 puffs), and a thermocouple sensor was positioned 5 mm inside from the end of the second segment to measure the mainstream smoke temperature for the generated smoke.

[0162]

[0163] Puff degree 123456789 Example 152.3℃55.0℃51.3℃48.0℃45.8℃43.3℃41.1℃38.9℃35.9℃ Comparative example 166.3℃63.4℃59.7℃56.7℃53.4℃49.6℃44.9℃40.3℃36.6℃

[0164] Referring to Table 2 above, when comparing the mainstream smoke temperatures of the smoking articles of Example 1 and Comparative Example 1 having similar physical properties, it can be confirmed that the mainstream smoke temperature of the smoking article of Example 1 is lower than that of the smoking article of Comparative Example 1 throughout the entire puff, and that the mainstream smoke temperature of the smoking article of Example 1 is lower by at least 8°C than that of the smoking article of Comparative Example 1 in the initial puff (particularly, the 1st to 4th puffs). This confirms that the lyocell material has a superior cooling effect compared to the cellulose acetate material, particularly a superior cooling effect for the initial puff.

[0165] Example 2

[0166] Lyocell tow having a single denier of 3.33 dtex (mono denier of 3.0) and a total denier of 3,889 tex (total denier of 35,000) was manufactured.

[0167]

[0168] Examples 3 to 5

[0169] A filter (second segment) including the lyocell tow of Example 2 was manufactured with a length of 14 mm under the conditions shown in Table 3 below. The manufactured filters (second segments) were named as Examples 3, 4, and 5, respectively, according to the magnitude of the suction resistance, and the wrapper used in the manufacture of the filters was a non-oil-resistant paper having a basis weight of 75 gsm.

[0170]

[0171] Classification Example 3 Example 4 Example 5 Weight (mg) 15.88 14.15 12.44 Suction resistance (mmWG) 16.00 12.13 8.97 Hardness (%) 93.49 91.43 85.91

[0172] Next, a smoking article having a structure as shown in FIG. 4, including a first segment consisting of a shear plug having a length of 7 mm, a tobacco rod containing tobacco material having a length of 15 mm, a pipe filter having an inner diameter of 6 mm and a length of 12 mm, and a second segment having a length of 14 mm, each of Examples 3 to 5, was manufactured under conditions as shown in Table 4.

[0173] ClassificationWeight(mg)Circumference(mm)Vent(%)PDO(mmH20)PDC(mmH20)Smoking article of Example 3655.822.7461.43139.3139.3Smoking article of Example 4648.022.8851.48111.6111.6Smoking article of Example 5642.922.7881.6394.894.8

[0174] (In Table 4 above, PDC means the value of suction resistance measured when the tobacco rod is open, the perforation of the filter rod is blocked, and the inflow of external air is blocked; PDO means the value of suction resistance measured when the tobacco rod is open, the perforation of the filter rod is not blocked, and the inflow of external air is blocked; and Vent means the air dilution rate.) Experimental Example 2. Analysis of components in smoke according to the inhalation resistance of the second segment

[0175]

[0176] In order to compare the components in the smoke according to the suction resistance of the second segment, the tobacco rods of the smoking articles according to Examples 3 to 5 were heated at a heating temperature of 190°C to 280°C using an external heating method, and the total particulate matter (TPM), nicotine components, moisture content, etc. were measured, and the results are shown in Table 5 below.

[0177] In particular, the experimental method was conducted in a smoking room (specifically, a temperature of about 21.9°C and a relative humidity of 64.3%) with an internal temperature of about 22±2°C and an internal relative humidity of about 60±5%, using smoking articles according to Examples 3 to 5, and the smoking conditions were HC conditions (Puff volume: 55 ml / Puff frequency: 30 s / Puff duration: 2 s / Number of puffs: 9 puffs), and the generated smoke was captured and analyzed on a Cambridge filter (i.e., Cambridge filter pad (CFP)). The total particulate matter (TPM) was a value obtained by measuring the change in the weight of the Cambridge filter before smoking and after smoking using a smoking device, and for the remaining components, the captured smoke was analyzed by GC (Gas Chromatography).

[0178]

[0179] ClassificationTPM(mg)Tar(mg)Nic(mg)PG(mg)Gly(mg)Moisture(mg)Example 334.9917.900.380.753.2316.71Example 434.9417.530.420.863.5416.99Example 540.3720.500.631.434.8819.24

[0180] Referring to Table 5 above, the smoke components transferred during smoking may differ depending on the difference in the suction resistance of the second segment. In particular, the moisture transfer amount of the smoking article of Example 3, which has a large suction resistance of the second segment, is 16.71 mg, and the moisture transfer amount of the smoking article of Example 5, which has a small suction resistance, is 19.24 mg. It can be confirmed that the greater the suction resistance, the less moisture transferred within the mainstream smoke, resulting in an excellent effect of reducing the heat sensation when the user puffs. (Smokers feel a greater heat sensation at the same temperature when there is a lot of moisture within the mainstream smoke.)

[0181] Experimental Example 3. Nicotine removal ability according to the suction resistance of the second segment.

[0182]

[0183] Next, in order to compare the nicotine removal performance according to the suction resistance of the second segment, the tobacco rod of the smoking article according to Examples 3 to 5 was heated at a heating temperature of 190°C to 280°C by an external heating method, and the amount of nicotine component contained in the transferred aerosol and the amount of nicotine component remaining inside the second segment (filter) were measured, and the measurement results were substituted into the following mathematical expression 1 to calculate the nicotine removal ability of the filter, and the results were substituted into the following mathematical expression 2 to calculate the nicotine transfer rate of the filter, which are shown in Table 6 below.

[0184] The amount of nicotine contained in the aerosol was measured by capturing the smoke generated in Experimental Example 2 on a Cambridge filter (i.e., Cambridge Filter Pad (CFP)) and analyzing it with GC (Gas Chromatography), and the amount of nicotine remaining inside the second segment (filter) was measured by extracting the second segment by immersing it in water after smoking and analyzing it with GC / MS equipment. At this time, the second segment (filter) was immersed overnight in a container containing distilled water, and the solution containing the extracted component was used for GC / MS analysis.

[0185]

[0186] [Mathematical Formula 1]

[0187] Removal capacity (%) = (Residual amount in the second segment (filter) after smoking) / (Residual amount in the second segment (filter) after smoking + Aerosol transfer amount after smoking) × 100

[0188]

[0189] [Equation 2]

[0190] Transmission rate (%) = 100 (%) - Removal ability (%)

[0191]

[0192] Classification Aerosol migration amount (mg) Residual amount in filter (mg) Migration rate (%) Removal ability (%) Example 30.38 1.30 22.57 7.5 Example 40.42 1.05 28.57 1.5 Example 50.63 1.04 37.76 2.3

[0193] Referring to Table 6 above, the nicotine removal ability of the filter of Example 3, which has a large suction resistance due to the difference in suction resistance of the second segment, is 77.5%, and the nicotine removal ability of the filter of Example 5, which has a small suction resistance, is 62.3%, confirming that the higher the suction resistance, the better the nicotine removal ability. Although the embodiments of the present disclosure have been described above with reference to the attached drawings, those skilled in the art to which the present disclosure pertains will understand that the present disclosure can be implemented in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the embodiments described above are exemplary in all aspects and not restrictive. The protection scope of the present disclosure should be interpreted by the claims below, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the technical ideas defined by the present disclosure.

Claims

1. Tobacco load; A shear plug arranged on one side of the above tobacco rod; A first segment arranged on the other side opposite to the one side of the said tobacco rod; and Including a second segment arranged on the other side of the first segment, The second segment comprises a lyocell tow comprising a plurality of lyocell fibers; Smoking items.

2. In paragraph 1, The mono denier of the lyocell fibers included in the above lyocell tow is 2 to 15, and the total denier of the above lyocell tow is 10,000 to 40,000. Smoking items.

3. In paragraph 1, The suction resistance of the second segment is 5 mmWG to 20 mmWG based on the length of the second segment of 14 mm. Smoking items.

4. In paragraph 3, The suction resistance of the second segment is 8 mmWG to 17 mmWG based on the length of the second segment of 14 mm. Smoking items.

5. In paragraph 1, The above shear plug comprises at least one of cellulose acetate or lyocell, Smoking items.

6. In paragraph 1, The above shear plug comprises at least one channel therein, Smoking items.

7. In paragraph 1, The hardness of the second segment is 60% to 100%, Smoking items.

8. In paragraph 7, The hardness of the second segment is 85% to 95%, Smoking items.

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