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
  • A24D3/062—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
• • 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
  • A24D3/06—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
  • 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
  • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
• • 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

Definitions

• the present invention relates to a smoking article in which lyocell tow is applied to a first segment (a cooling structure), which constitutes a filter portion of the smoking article, to prevent the first segment (a cooling structure) from melting due to the high temperature applied to heat the smoking article, thereby providing a user (a consumer) with a more improved smoking experience.
• CA cellulose acetate
• One object of the present invention is to provide a smoking article including: a front-end plug, a tobacco rod, a first segment, and a second segment, wherein by configuring the first segment with lyocell tow including a plurality of lyocell fibers, deformation of the first segment, which is caused by heat transferred from a heater configured to heat the smoking article or an aerosol generated within the smoking article, may be prevented or minimized due to the excellent heat resistance of the lyocell tow.
• Another object of the present invention is to provide a smoking article including: a front-end plug, a tobacco rod, a first segment, and a second segment, wherein by configuring the first segment with lyocell tow composed of a plurality of lyocell fibers, an amount of moisture transferred during smoking may be effectively reduced due to the excellent moisture affinity of lyocell tow, thereby reducing the feeling of heat felt by the user and maximizing the cooling effect.
• Still another object of the present invention is to provide a smoking article including: a first segment, which includes lyocell tow composed of a plurality of lyocell fibers, and a binder; a front-end plug; a tobacco rod; and a second segment, wherein appropriate hardness is imparted to the lyocell tow through the binder, thereby stably maintaining the shape of the first segment even though the first segment is a tubular structure composed of lyocell tow.
• a smoking article including: a tobacco rod, a front-end plug arranged on one side of the tobacco rod, a first segment arranged on the other side opposite to the one side of the tobacco rod, and a second segment arranged on the other side of the first segment, wherein the first segment includes lyocell tow including a plurality of lyocell fibers.
• the lyocell tow of the first segment may have a tube shape having a hollow formed therein.
• the first segment may further include at least one binder dispersed in the plurality of lyocell tow.
• the binder may include at least one of a cellulose-based binder, a vinyl-based binder, a polyester-based binder, a dextrin-based binder, and a starch-based binder.
• the binder may include at least one dextrin-based binder.
• the inner diameter of the first segment may be 10% to 90% of the outer diameter of the first segment.
• the first segment may have an outer diameter of 6 mm to 10 mm.
• the first segment may have an inner diameter of 2 mm to 6 mm, and the inner diameter of the first segment may be smaller than the outer diameter of the first segment.
• the first segment may have an outer diameter of 6 mm to 10 mm and an inner diameter of 2 mm to 6 mm.
• the inner diameter of the first segment may be smaller than the outer diameter of the first segment.
• the inner diameter of the first segment may be 10% to 90% of the outer diameter of the first segment, and the first segment may have an outer diameter of 6 mm to 10 mm and an inner diameter of 2 mm to 6 mm.
• the front-end plug may include at least one of cellulose acetate and lyocell.
• the front-end plug may include at least one channel formed therein.
• the at least one channel may extend in a longitudinal direction.
• the at least one channel may extend in a longitudinal direction parallel to the longitudinal axis.
• the second segment may include at least one of cellulose acetate and lyocell.
• a first segment (a cooling structure) including lyocell tow composed of a plurality of lyocell fibers, and a binder
• appropriate hardness can be imparted to the lyocell tow through the binder.
• the first segment can have an effect of stably maintaining its shape even though the first segment is a tubular structure composed of lyocell tow, and due to this stable maintenance of the shape of the first segment, the deterioration in the quality of smoking experience caused by the deformation of the first segment during storage and/or smoking of the smoking article can be prevented.
• a "smoking material” may refer to any type of material that may be used in a smoking article.
• the heater 13 may be an induction heating heater.
• the heater 13 may include an electrically conductive coil configured to heat the smoking article 3 in an induction heating manner, and the smoking article 3 may include a susceptor that may be heated by the induction heating heater.
• the liquid storage portion may store a liquid composition.
• the liquid composition may be a liquid containing a tobacco-containing material including a volatile tobacco flavor component, or may be a liquid containing a non-tobacco material.
• the liquid storage portion may be manufactured to be detachable from/attachable to the vaporizer 14, or may be manufactured integrally with the vaporizer 14.
• the tobacco rod 31 may be manufactured in various ways.
• the tobacco rod 31 may be manufactured as a sheet, and/or manufactured as strands.
• the tobacco rod 31 may be manufactured as cut filler in which a tobacco sheet is finely chopped.
• the tobacco rod 31 may be manufactured to include at least one of the forms of tobacco particles, tobacco sheets, tobacco beads, tobacco granules, and tobacco powder.
• tobacco rod 31 may further include paper and/or lyocell tow, and/or cellulose acetate tow for settling the tobacco granules and the like.
• the filter rod 32 may be a cylindrical rod, or may also be a tubular rod including a hollow formed therein. Also, the filter rod 32 may be a recessed rod. When the filter rod 32 is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape from the other segments.
• the first segment 321 of the filter rod 32 may cool an aerosol generated when the heater 13 heats the tobacco rod 31. Accordingly, the user may inhale the aerosol cooled to an appropriate temperature.
• the first segment 321 of the filter rod 32 may be a lyocell filter composed of lyocell tow including a plurality of lyocell fibers.
• the first segment 321 may be a tubular structure including a hollow formed therein.
• the hollow may extend along the longitudinal direction of the first segment 321.
• the hollow may be located at the center of the 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 and the first segment 321 may have a coaxial structure along the longitudinal direction.
• the length or diameter of the first segment 321 may vary depending on the shape of the smoking article 3.
• the length of the first segment 321 may be appropriately adjusted in the range of 7 mm to 20 mm.
• the first segment 321 may have a length of approximately 12 mm, but the present invention is not limited thereto.
• the first segment 321 may prevent the internal material of the tobacco rod 31 from being pushed backward ( i.e., in a direction opposite to the insertion direction), and also provide an aerosol cooling effect.
• the lyocell fibers included in the first segment 321 may be 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 inner diameter of the first segment 321 may be appropriately adjusted in the range of approximately 2 mm to 6 mm, preferably 2.1 mm to 5.5 mm, more preferably 2.2 mm to 5 mm, even more preferably 2.3 mm to 4.5 mm, and even more preferably 2.4 mm to 4 mm, but the present invention is not limited thereto.
• the first segment 321 may have an inner diameter of 2.5 mm to 3.0 mm or 3.5 mm to 4.0 mm, preferably 2.7 mm to 2.9 mm or 3.7 mm to 3.9 mm, or more preferably 2.8 mm or 3.8 mm, but the present invention is not limited thereto.
• the inner diameter of the first segment 321 may be 10% to 90%, preferably 20% to 80%, more preferably 25% to 75%, even more preferably 30% to 70%, and even more preferably 35% to 65% of the outer diameter of the first segment 321, but the present invention is not limited thereto.
• 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 first segment 321 may further include at least one binder.
• the binder may be dispersed in the lyocell tow constituting the first segment 321.
• the binder may be distributed over the entire region of the lyocell tow constituting the first segment 321.
• the binder may function to bind between a plurality of lyocell fibers constituting the lyocell tow to impart appropriate hardness to the first segment 321.
• lyocell does not have a plasticizer material that hardens lyocell fibers, unlike cellulose acetate, the first segment 321 may be appropriately imparted with hardness by adding at least one binder instead.
• the binder may include at least one of a cellulose-based binder, a vinyl-based binder, a polyester-based binder, a dextrin-based binder, a starch-based binder, guar gum, xanthan gum, gum arabic, carrageenan, konjac, and agar, but is not limited thereto as long as the binder is a material capable of binding between a plurality of lyocell fibers to impart appropriate hardness.
• the cellulose-based binder may include hydroxypropyl methyl cellulose (HPMC), ethyl cellulose (EC), methyl cellulose (MC), carboxymethyl cellulose (CMC), and the like
• the vinyl-based binder may include polyvinyl pyrrolidone (PVP), polyvinyl alcohol (PVA), ethylene vinyl acetate (EVAc), and the like
• the polyester-based binder may be a polyester including one or more selected from the group consisting of alkylenes, arylenes, and heteroarylenes having 5 to 12 carbon atoms
• the dextrin-based binder may include dextrin and the like
• the starch-based binder may include starch (for example, tapioca, corn, wheat, potato, sweet potato, and the like), cationic starch, and/or esterified starch, but the present invention is not limited thereto.
• the hardness of the first segment 321 is a value obtained by quantifying the degree to which the diameter of the first segment 321 is maintained when the first segment 321 is pressed with a certain level of force in a direction perpendicular to the longitudinal direction of the first segment 321, and may be a value indicating, as a percentage, the ratio of the diameter of the first segment 321 after the force is applied to the diameter of the first segment 321 before the force is applied.
• the first segment 321 When the first segment 321 has a hardness within the above range, the first segment 321 may have the effect of stably maintaining its shape even though the first segment 321 is a tubular structure composed of lyocell tow, and due to this stable maintenance of the shape of the first segment 321, the deterioration in the quality of smoking experience caused by the deformation of the first segment 321 during storage or smoking of the smoking article 3 may be prevented.
• the smoking article 3 may have the effect of effectively reducing an amount of moisture transferred during smoking due to the superior moisture affinity characteristics of lyocell tow compared to cellulose acetate tow, thereby reducing the feeling of heat felt by the user and maximizing the cooling effect.

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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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Family Applications (1)

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Citations (3)

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• 2025
  • 2025-01-14 WO PCT/KR2025/000832 patent/WO2025155075A1/fr active Pending
  • 2025-01-15 EP EP25151978.1A patent/EP4585072A1/fr active Pending

Patent Citations (3)

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