Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF 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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
  • A24D3/17—Filters specially adapted for simulated smoking devices

Definitions

• the present invention relates to a smoking article which includes lyocell tow in a filtering element, so that the smoking article prevents the filtering element from melting due to high temperature resulting from the heat applied for heating the smoking article, effectively reduces the heat generated during the initial puffs, and thus is capable of providing a richer improved smoking experience to a user.
• the transfer of tobacco components e.g., nicotine and tar
• the production of vapor have a significant impact on a user's smoking experience.
• the smoking article operates by a method in which a stick is heated to a high temperature of about 150 to 300 °C using a device, the applied heat is transferred to a medium portion to increase the temperature of the medium portion, and thus tobacco components such as nicotine and the like are smoothly transferred.
• materials such as glycerin and the like are heated to generate vapor, and the tobacco components contained in the vapor are delivered so that a user can inhale them.
• the device is set to a temperature equal to or less than the boiling point of glycerin, vapor is not smoothly generated, and thus a problem that the transfer of tobacco components is limited occurs.
• CA cellulose acetate
• the fourth portion may have a hardness of 60% to 100%.
• the third portion may be a tubular structure having a hollow.
• lyocell tow is applied to a filtering element of the smoking article, the filtering element is prevented from melting due to high temperature applied for heating the smoking article, the heat generated during the initial puffs is effectively reduced, and thus a richer improved smoking experience can be provided to a user.
• total fineness of lyocell tow or cellulose acetate tow refers to the fineness of a multifilament of lyocell fibers or cellulose acetate fibers constituting lyocell tow or cellulose acetate tow.
• puff refers to an action of inhaling or drawing air through a smoking article for generating and inhaling smoke or vapor.
• puff count may refer to the total number of inhaling or drawing actions during use of a smoking article. Alternatively or additionally, the puff count may be the maximum number of inhaling or drawing actions that a smoking article can provide before it is completely consumed or ceases to function.
• the "ventilation rate (hereinafter, abbreviated as "Vent")" of a smoking article may be defined as a percentage value of a ratio of the total volume flow rate (e.g., ml/s) of air entering the smoking article without burning or heating through the front region, that is, the longitudinal upstream end, of the smoking article to the total volume flow rate (e.g., ml/s) of air at the outlet, that is, the longitudinal downstream end, of the smoking article.
• the ventilation rate may be measured according to ISO 9512:2019.
• the total volume flow rate of air entering the smoking article without burning or heating through the front region may be the total volume flow rate of air entering in a direction perpendicular to the longitudinal direction of the smoking article.
• the total volume flow rate of air entering the smoking article without burning or heating through the front region may be the total volume flow rate of air entering the smoking article through wrapping paper.
• the contents of components included in total particulate matter (TPM) in the collected smoke may be analyzed through gas chromatography-mass spectrometry (GC/MS).
• GC/MS gas chromatography-mass spectrometry
• the contents of components included in TPM in the collected smoke may be measured using a GC/MS device after a Cambridge filter (a Cambridge filter pad (CFP)) collecting smoke is immersed in isopropyl alcohol (IPA) for a predetermined time (e.g., 20 minutes to 16 hours) in the case of tar or nicotine and in methanol for a predetermined time (e.g., 2 hours to 16 hours) in the case of PG and Gly, then treated using a shaking device, and passed through a polytetrafluoroethylene (PTFE) syringe filter to remove impurities.
• the immersion time may be 20 minutes or more in the case of tar or nicotine and 2 hours or more in the case of PG and Gly.
• mmWG is a unit of pressure and refers to "mmH 2 O.”
• tobacco element refers to an element including a tobacco material.
• tobacco material refers to any form of material including components derived from tobacco leaves.
• cooling element refers to an element that cools any material.
• the cooling element may cool an aerosol generated from an aerosol-generating element or a tobacco element.
• a "filtering element” refers to an element including a filtering material.
• the filtering element may include a plurality of fiber strands.
• FIGS. 1 to 4 are diagrams showing examples in which an aerosol-generating article is inserted into an aerosol-generating device.
• an aerosol-generating device 100 includes a battery 110, a control unit 120, and a heater 130.
• the aerosol-generating device 100 may further include a vaporizer 140.
• a smoking article 200 may be inserted into the internal space of the aerosol-generating device 100.
• the aerosol-generating device 100 includes the heater 130, if necessary, the heater 130 may be omitted. In some embodiments, the aerosol-generating device 100 may not include a heater. In some embodiments, the battery 110, the control unit 120, and the vaporizer 140 are sequentially disposed, that is, disposed in a row along the longitudinal direction of the smoking article 200.
• FIG. 1 it is illustrated that the battery 110, the control unit 120, and the heater 130 are disposed in a row. In some embodiments, the battery 110, the control unit 120, and the heater 130 are sequentially disposed along the longitudinal direction of the smoking article 200. Also, it is illustrated in FIG. 2 that the battery 110, the control unit 120, the vaporizer 140, and the heater 130 are disposed in a row along the longitudinal direction of the smoking article 200. Also, it is illustrated in FIG. 3 that the vaporizer 140 and the heater 130 are disposed in parallel.
• the internal structure of the aerosol-generating device 100 is not limited to those shown in FIGS. 1 to 3 . In other words, the disposition of the battery 110, the control unit 120, the heater 130, and the vaporizer 140 may vary depending on the design of the aerosol-generating device 100.
• the aerosol-generating device 100 may operate the heater 130 and/or the vaporizer 140 to generate an aerosol from the smoking article 200 and/or the vaporizer 140.
• the aerosol generated by the heater 130 and/or the vaporizer 140 is delivered to a user by passing through the smoking article 200.
• the aerosol-generating device 100 may operate the heater 130.
• the control unit 120 controls the overall operation of the aerosol-generating device 100.
• the control unit 120 controls the operation of not only the battery 110, the heater 130, and the vaporizer 140 but also other components included in the aerosol-generating device 100.
• the control unit 120 may also determine whether the operation of the aerosol-generating device 100 is possible by checking the state of each component of the aerosol-generating device 100.
• PDC may refer to a draw resistance value measured in a state in which the second portion is open, the perforations formed in any one of the first, third, and fourth portions are blocked, and the inflow of external air is blocked
• PDO may refer to a draw resistance value measured in a state in which the second portion is open, the perforations formed in any one of the first, third, and fourth portions are not blocked, and the inflow of external air is allowed.
• Filters including the lyocell tow of Example 2 were manufactured to have a length of 14 mm under the conditions shown in Examples 3 to 5 of Table 3 below.
• the manufactured filters were named Example 3, Example 4, and Example 5 according to the magnitude of draw resistance, and as the wrapper used to manufacture the filters, wrapping paper having a basis weight of 75 gsm and having not been treated to be grease-resistant was used.
• smoking articles which have the structure shown in FIG. 5 and includes a first portion having a length of 10 mm and composed of paper including an aerosol-generating element, a second portion having a length of 12 mm and including a tobacco material, a third portion having a length of 12 mm and an inner diameter of 3.8 mm and composed of a cellulose acetate tube, and each fourth portion of Examples 3 to 5 and Comparative Example 2 having a length of 14 mm, were manufactured under the conditions shown in Table 4.
• the second portions of the smoking articles of Examples 3 to 5 and Comparative Example 2 were heated to a heating temperature of 190 °C to 280 °C by an external heating method, and total particulate matter (TPM), nicotine component, and moisture contents were measured and shown in Table 5 below.
• TPM total particulate matter
• a lyocell material can reduce the heat felt by a user during puffs compared to a cellulose acetate material at a similar draw resistance.
• a nicotine component amount included in the aerosol was measured by collecting the smoke generated in the smoking article according to Experimental Example 2 in a Cambridge filter (i.e., a Cambridge filter pad (CFP)) and analyzing the collected smoke by gas chromatography (GC), and a nicotine component amount remaining in the fourth portion (the filter) was measured by immersing the fourth portion (the filter) after smoking in water to extract residual components and analyzing the extracted components using a GC/MS device.
• the fourth portion (the filter) was immersed in a container containing distilled water overnight, and a solution containing the extracted components was used in GC/MS analysis.

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

Applications Claiming Priority (2)

Publications (1)

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ID=94928454

Family Applications (1)

Country Status (2)

Citations (5)

Family Cites Families (5)

• 2025
  • 2025-01-14 WO PCT/KR2025/000836 patent/WO2025155078A1/fr active Pending
  • 2025-01-15 EP EP25151985.6A patent/EP4585073A1/fr active Pending

Patent Citations (5)

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