Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
  • A24D3/06—Use of materials for tobacco smoke filters
  • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
  • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D1/00—Cigars; Cigarettes
  • A24D1/20—Cigarettes specially adapted for simulated smoking devices
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
  • A24D3/04—Tobacco smoke filters characterised by their shape or structure
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
  • A24D3/06—Use of materials for tobacco smoke filters
  • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
  • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers

Definitions

• the present invention relates to a smoking article in which lyocell tow is applied to a mouthpiece portion of the smoking article, thereby preventing the tow of the mouthpiece portion from melting due to the high temperature applied to heat the smoking article and effectively reducing the feeling of heat generated during the initial puff to provide an improved smoking experience.
• the transfer of tobacco components e.g., nicotine, tar
• the generation of an atomized aerosol have a significant impact on the user's smoking experience.
• the smoking articles operate by heating a stick to a high temperature of approximately 150 to 300°C using a device and transferring the heated heat to a medium portion so that the tobacco components such as nicotine and the like can be smoothly transferred as the temperature of the medium portion rises.
• substances such as glycerin and the like are heated to generate vapor, and the tobacco components contained in the vapor are transferred so that the user can inhale the tobacco components.
• the device is set to a temperature below the boiling point of glycerin, there is a problem in that the transfer of tobacco components is limited because vapor is not generated smoothly.
• a smoking article including: a medium portion, a mouthpiece portion arranged to be 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 lyocell tow including a plurality of lyocell fibers.
• the resistance to draw of the mouthpiece portion may be 5 mmH 2 O (mmWG) to 14 mmH 2 O (mmWG) based on the length (12 mm) of the mouthpiece.
• the resistance to draw of the mouthpiece portion may be 6.2 mmH 2 O (mmWG) to 12 mmH 2 O (mmWG) based on the length (12 mm) of the mouthpiece.
• the mouthpiece portion may have a hardness of 60% to 100%. In some embodiments, the mouthpiece portion may have a hardness of 85% to 95%.
• the cooling structure may have a tube shape having a hollow formed therein.
• the support structure may have a tube shape having a hollow formed therein.
• the cooling structure may have a tube shape having a hollow formed therein
• the support structure may have a tube shape having a hollow formed therein
• the hollow of the cooling structure and the hollow of the support structure may communicate with each other.
• the support structure may include at least one of cellulose acetate, lyocell, and a paper tube.
• the cooling structure may include at least one of a tubular structure made of a paper material, a tubular structure made of a cellulose acetate material, and a tubular structure made of a lyocell material.
• Another aspect of the present application for achieving the above object provides a system including the above-described smoking article and an aerosol generation device to which the smoking article is applied.
• Still another aspect of the present application provides a method of manufacturing the above-described smoking article.
• a smoking article which includes: a medium portion, a support structure, a cooling structure, and a mouthpiece portion
• lyocell tow is applied to the mouthpiece portion to prevent the tow of the mouthpiece portion from melting due to the high temperature applied to heat the smoking article and to effectively reduce the feeling of heat generated during the initial puff, thereby providing a richer and improved smoking experience to the user.
• a "smoking material” may refer to any type of material that may be used in a smoking article.
• the mouthpiece portion 140 may serve as a mouthpiece that comes into contact with the user's oral region and as a filter that ultimately delivers the aerosol delivered from the upstream side to the user.
• the mouthpiece portion 140 may be located downstream of the cooling structure 130 and the upstream side of the mouthpiece portion 140 may come into contact with the downstream side of the cooling structure 130, and the mouthpiece portion 140 may form the downstream end of the smoking article 100.
• the mouthpiece portion 140 may include a lyocell filter composed of lyocell tow including a plurality of lyocell fibers.
• the mouthpiece portion 140 may have a length of approximately 10 mm to 14 mm (for example, 12 mm), but the present invention is not limited thereto.
• the lyocell fibers included in the mouthpiece portion 140 are environmentally-friendly fibers made of cellulose extracted from wood pulp.
• the lyocell tow may refer to a bundle formed by cross-linking adjacent lyocell fibers.
• the lyocell fibers may have a non-circular cross-section.
• the non-circular cross-section is defined as a cross-section whose shape is not circular but includes a plurality of protrusions.
• a cross-section having a shape in which a plurality of protrusions extend from the center thereof may be referred to as a "non-circular cross-section.”
• the lyocell fibers may have a Y-shaped cross-section with three protrusions branching from the center thereof, a cross-shaped cross-section with four protrusions, and/or a star-shaped cross-section with five protrusions, or may also have an O-shaped cross-section, but the present invention is not limited thereto.
• the single fiber fineness (mono denier) of the lyocell fibers included in the mouthpiece portion 140 is in the range of 2.22 to 16.67 dtex (2 to 15 denier), preferably 2.44 to 15.56 dtex (2.2 to 14 denier), more preferably 2.78 to 14.44 dtex (2.5 to 13 denier), and even more preferably 3.33 to 13.33 dtex (3 to 12 denier), and the mouthpiece portion 140 may include lyocell tow having a total fiber fineness 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), and more preferably 2,778 to 4,222 tex (25,000 to 38,000 denier).
• the resistance to draw of the mouthpiece portion 140 may be 5 mmH 2 O (mmWG) to 14 mmH 2 O (mmWG), preferably 5.5 mmH 2 O (mmWG) to 13 mmH 2 O (mmWG), more preferably 6 mmH 2 O (mmWG) to 12.5 mmH 2 O (mmWG), and even more preferably 6.2 mmH 2 O (mmWG) to 12 mmH 2 O (mmWG) based on the length (12 mm) of the mouthpiece portion 140.
• the resistance to draw of the mouthpiece portion 140 may be even more preferably in the range of 6.4 mmH 2 O (mmWG) to 6.8 mmH 2 O (mmWG), even more preferably 8.7 mmH 2 O (mmWG) to 9.3 mmH 2 O (mmWG), even more preferably 11 mmH 2 O (mmWG) to 12 mmH 2 O (mmWG), and even more preferably 11.5 mmH 2 O (mmWG) to 11.8 mmH 2 O (mmWG).
• the moisture transfer amount in the aerosol generated during smoking may be reduced, thereby reducing the smoker's feeling of heat in the initial puff and improving the nicotine removal efficiency in the aerosol.
• Hardness is a physical property associated with the elasticity and resilience of the mouthpiece portion 140, and refers to the degree to which the mouthpiece portion 140 resists a pressure applied in a direction perpendicular to the longitudinal direction. In order for the user to easily use the smoking article while maintaining its shape when using the smoking article, it is desirable to maintain a certain level of hardness or higher.
• the mouthpiece portion 140 may have a hardness of 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 the present invention is not limited thereto.
• the hardness of the mouthpiece portion 140 is a value obtained by quantifying the degree to which the diameter of the mouthpiece portion 140 is maintained when the mouthpiece portion 140 is pressed with a certain level of force in a direction perpendicular to the longitudinal direction of the mouthpiece portion 140, and may be a value indicating, as a percentage, the ratio of the diameter of the mouthpiece portion 140 after the force is applied to the diameter of the mouthpiece portion 140 before the force is applied.
• the cross-section of the mouthpiece portion 140 perpendicular to the longitudinal direction of the smoking article 100 may have a circumference of 14 mm to 25 mm, for example, 22 mm to 23 mm, but the present invention is not limited thereto.
• the mouthpiece portion 140 further includes a binder dispersed in the lyocell tow.
• the mouthpiece portion 140 may have a predetermined hardness.
• the mouthpiece portion 140 may have at least one flavor capsule inserted therein.
• the support structure 120, the cooling structure 130, and the mouthpiece portion 140 may all function as filters for aerosols.
• each component may be referred to as a "filter segment” to emphasize their function as filters.
• the support structure 120, the cooling structure 130, and the mouthpiece portion 140 may be referred to as a first filter segment, a second filter segment, and a third filter segment, respectively.
• the wrapper 150 may surround at least one of the medium portion 110, the support structure 120, the cooling structure 130, and the mouthpiece portion 140 and wrap the medium portion 110, the support structure 120, the cooling structure 130, and the mouthpiece portion 140.
• at least one of the medium portion 110, the support structure 120, the cooling structure 130, and the mouthpiece portion 140 may be wrapped with a separate wrapper before being wrapped by the wrapper 150.
• the medium portion 110 may be wrapped by a medium portion wrapper (not shown)
• the support structure 120, the cooling structure 130, and the mouthpiece portion 140 may be wrapped by a first filter wrapper (not shown), a second filter wrapper (not shown), and a third filter wrapper (not shown), respectively.
• a method of wrapping the smoking article 100 and components thereof is not limited thereto and may vary.
• the wrapper 150 may have perforations 160 (see FIG. 1 ) formed therein, the perforations 160 being arranged along the circumference of the cooling structure 130, or may not have perforations (no perforations, see FIG. 2 ) formed therein. In some embodiments, the wrapper 150 may have perforations 160 (see FIG. 1 ) formed therein, the perforations 160 being arranged along the circumference of the cooling structure 130, particularly along the circumference of a cross-section perpendicular to the longitudinal direction of the cooling structure 130. When the perforations are formed in the wrapper 150, outside air may be introduced into the cooling structure 130 through the plurality of perforations 160.
• the plurality of perforations 160 may serve to lower the surface temperature of the mouthpiece portion and the temperature of mainstream smoke delivered to the smoker through the introduction of outside air.
• no perforations may be formed in the wrapper 150, but the present invention is not limited thereto.
• the lyocell material constituting the support structure 120 may have excellent moisture absorption performance in the mainstream smoke due to its excellent moisture affinity, thereby significantly reducing the feeling of heat of the mainstream smoke passing through the support structure 120.
• a smoking article having a structure as shown in FIG. 1 which includes a medium portion having a length of 12 mm, a support structure composed of a cellulose acetate material and having a hollow inner diameter of 2.7 mm, an outer diameter of 7 mm and a length of 10 mm, a cooling structure composed of a paper tube and having an inner diameter of 6 mm and a length of 14 mm, and a mouthpiece portion composed of lyocell tow and having a length of 12 mm, was manufactured under the conditions listed in Table 1.
• Example 2 To compare the temperatures of mainstream smoke by puff in the smoking articles of Example 1 and Comparative Example 1, the medium portions of the smoking articles according to Example 1 and Comparative Example 1 were heated to a heating temperature of 190°C to 280°C using an external heating method, and the temperature of the generated mainstream smoke was measured. The results are listed in Table 2 below.
• this experiment was conducted on the smoking articles according to Comparative Example 1 and Example 1 in a smoking room having an internal temperature of approximately 22 ⁇ 2°C and an internal relative humidity of approximately 60 ⁇ 5% (specifically, a temperature of approximately 21.9°C and a relative humidity of 64.3%).
• the experiment was conducted under smoking conditions, that is, HC conditions (Puff volume: 55 mL/Puff frequency: 30 s/Puff duration: 2 s/Puff count: 9 puffs), and a thermocouple sensor was positioned within 5 mm from the tip of the mouthpiece portion to measure the temperature of mainstream smoke.
• Lyocell tow having a single fiber fineness of 3.33 dtex (a mono denier of 3.0) and a total fiber fineness of 3,889 tex (a total denier of 35,000) was manufactured.
• a filter (i.e., a mouthpiece portion) including the lyocell tow of Example 2 was manufactured with a length of 12 mm under the conditions listed in Table 3 below.
• the manufactured filters (i.e., mouthpiece portions) were named Examples 3, 4, and 5, respectively, according to the magnitude of the resistance to draw, and the wrapper used to manufacture the filters was (non-oil-resistant) wrapping paper having a basis weight of 75 gsm.
• Table 3 Classification Example 3
• Example 4 Example 5 Weight (mg) 11.64 10.39 9.14 Resistance to draw (mmH 2 O (mm WG )) 11.75 8.91 6.59 Hardness (%) 93.49 91.43 85.91
• smoking articles having a structure as shown in FIG. 1 which includes: a medium portion having a length of 12 mm, a support structure composed of a cellulose acetate material and having a hollow inner diameter of 2.7 mm, an outer diameter of 7 mm, and a length of 10 mm, a cooling structure composed of a paper tube and having an inner diameter of 6 mm and a length of 14 mm, and the mouthpiece portion composed of each of Examples 3 to 5 and having a length of 12 mm, were manufactured under conditions as listed in Table 4.
• the medium portions of the smoking articles according to Examples 3 to 5 were heated to a heating temperature of 190°C to 280°C using an external heating method, and the total particulate matter (TPM), nicotine components, moisture content, and the like were measured.
• TPM total particulate matter
• this experiment was conducted on the smoking articles according to Examples 3 to 5 in a smoking room having an internal temperature of approximately 22 ⁇ 2°C and an internal relative humidity of approximately 60 ⁇ 5% (specifically, a temperature of approximately 21.9°C and a relative humidity of 64.3%).
• the experiment was conducted under smoking conditions, that is, HC conditions (Puff volume: 55 mL/Puff frequency: 30 s/Puff duration: 2 s/Puff count: 9 puffs).
• the generated smoke was collected on a Cambridge filter (i.e., a Cambridge filter pad (CFP)), and analyzed.
• the total particulate matter (TPM) is a value obtained by measuring the change in weight of the Cambridge filter before and after smoking using a smoking device.
• the smoke components transferred during smoking may differ due to the difference in resistance to draw of the mouthpiece portion.
• the moisture transfer amount of the smoking article of Example 3, in which the mouthpiece portion has a large resistance to draw is 16.19 mg
• the moisture transfer amount of the smoking article of Example 5, in which the mouthpiece portion has a small resistance to draw is 19.15 mg.
• FIGS. 3 to 5 show various types of aerosol generation devices to which smoking articles according to some embodiments of the present disclosure may be applied.
• FIG. 3 is an exemplary block diagram showing a cigarette-type aerosol generation device 1000
• FIGS. 4 and 5 are exemplary configuration diagrams showing a hybrid-type aerosol generation device 1000 in which a liquid and cigarette are used together.
• the aerosol generation device 1000 will be briefly described.
• the controller 1200 may control the overall operation of the aerosol generation device 1000.
• the controller 1200 may control the operation of not only the battery 1100 and the heater portion 1300, but also other components that may be included in the aerosol generation device 1000.
• the controller 1200 may also check the status of each of the components of the aerosol generation device 1000 to determine whether the aerosol generation device 1000 is in an operable state.
• the controller 1200 may include at least one processor.
• the processor may be implemented as an array of multiple logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which a program that may be executed on the microprocessor is stored. Also, it will be understood by those skilled in the art to which the present disclosure pertains that the processor may be implemented as other types of hardware.
• the heating elements may include or may be composed of an electrically resistant material and/or any material capable of induction heating.
• the present invention is not limited thereto, and any material may be used as long as it may be heated to a desired temperature under the control of the controller 1200.
• the desired temperature may be preset in the aerosol generation device 1000 or may also be set to a desired temperature by the user.
• the aerosol generation device 1000 may further include a vaporizer 1400.
• the aerosol generation device 1000 may operate the heater portion 1300 and/or the vaporizer 1400 to generate an aerosol from the cigarette 2000 and/or the vaporizer 1400.
• the aerosol generated by the heater portion 1300 and/or the vaporizer 1400 may be delivered to a user through the cigarette 2000.
• the heating element of the heater portion 1300 may come into contact with a portion of the outer region of the cigarette 2000 or may be arranged adjacent to the outer region of the cigarette 2000 to increase the temperature of an aerosol-forming substrate inside the cigarette 2000 from the outside.
• the vaporizer 1400 may heat a liquid composition to generate an aerosol, and the generated aerosol may be delivered to the user through the cigarette 2000.
• the aerosol generated by the vaporizer 1400 may move along an airflow passage of the aerosol generation device 1000, and the airflow passage may be configured to deliver the aerosol generated by the vaporizer 1400 to the user through the cigarette 2000.
• the vaporizer 1400 may include, but is not limited to, a liquid reservoir, a liquid delivery means, and a liquid heating element.
• the liquid reservoir, the liquid delivery means, and the liquid heating element may be included as separate modules in the aerosol generation device 1000.
• the liquid reservoir may store a liquid composition (i.e., a liquid aerosol-forming substrate).
• the liquid reservoir may be manufactured to be detachable from/attachable to the vaporizer 1400 or may also be manufactured integrally with the vaporizer 1400.
• the liquid delivery means may deliver a liquid composition in the liquid reservoir to the liquid heating element.
• the liquid delivery means may be, but is not limited to, a wick such as cotton fiber, ceramic fiber, glass fiber, or a porous ceramic.
• the liquid heating element is an element configured to heat the liquid composition delivered by the liquid delivery means.
• the liquid heating element may include, but is not limited to, a metal heating wire, a metal heating plate, a ceramic heater, and the like, but the present invention is not limited thereto.
• the liquid 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 liquid heating element may be heated by the current supply of the controller 1200, and may transfer heat to the liquid composition in contact with the liquid heating element to heat the liquid composition. As a result, an aerosol may be generated.
• the vaporizer 1400 and heater portion 1300 may be arranged in parallel or series. However, the scope of the present disclosure is not limited to this arrangement.
• the controller 1200 may further control the operation of the vaporizer 1400, and the battery 1100 may also further supply power to enable the vaporizer 1400 to operate.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Cigarettes, Filters, And Manufacturing Of Filters (AREA)

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  • 2025-01-14 WO PCT/KR2025/000828 patent/WO2025155072A1/fr active Pending
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