EP4173495A1 - Tige de tabac, article de génération d'aérosol la comprenant, et dispositif de génération d'aérosol utilisé avec celle-ci - Google Patents

Tige de tabac, article de génération d'aérosol la comprenant, et dispositif de génération d'aérosol utilisé avec celle-ci Download PDF

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Publication number
EP4173495A1
EP4173495A1 EP22802865.0A EP22802865A EP4173495A1 EP 4173495 A1 EP4173495 A1 EP 4173495A1 EP 22802865 A EP22802865 A EP 22802865A EP 4173495 A1 EP4173495 A1 EP 4173495A1
Authority
EP
European Patent Office
Prior art keywords
aerosol
tobacco
filter
segment
granules
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22802865.0A
Other languages
German (de)
English (en)
Other versions
EP4173495A4 (fr
Inventor
Chan Min KWON
In Su Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KT&G Corp
Original Assignee
KT&G Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KT&G Corp filed Critical KT&G Corp
Publication of EP4173495A1 publication Critical patent/EP4173495A1/fr
Publication of EP4173495A4 publication Critical patent/EP4173495A4/fr
Pending legal-status Critical Current

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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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
    • 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
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/042—Cigars; Cigarettes with mouthpieces or filter-tips with mouthpieces
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/0225—Applying additives to filter materials with solid additives, e.g. incorporation of a granular product
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0287—Manufacture of tobacco smoke filters for filters with special features for composite filters
    • 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
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • 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
    • 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
    • A24D3/17—Filters specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01—Making cigarettes for simulated smoking devices

Definitions

  • the present disclosure relates to a tobacco rod, an aerosol-generating article including the same, and an aerosol generation device used therewith, and more particularly, to a tobacco rod which is filled with tobacco granules, an aerosol-generating article including the tobacco rod, and an aerosol generation device used with the article.
  • reconstituted tobacco leaves are mostly used as a tobacco material of the cigarette sticks, and shredded tobacco leaves are also used occasionally.
  • a tobacco material in a granular form has been proposed. For example, mounting a cartridge containing tobacco granules on an aerosol generation device to perform smoking has been proposed.
  • cartridge-type products have disadvantages in that they are less familiar to consumers than cigarette sticks, are not able to provide the same smoking sensation as cigarette sticks, and cause an increase in manufacturing costs.
  • Some embodiments of the present disclosure are directed to providing a tobacco rod which incorporates a structural design that can prevent fall-off of tobacco granules and an aerosol-generating article including the tobacco rod.
  • Some embodiments of the present disclosure are also directed to providing an aerosol-generating article designed to allow a plurality of tobacco granules to be uniformly heated.
  • Some embodiments of the present disclosure are also directed to providing an aerosol generation device that can be used with a tobacco granule-based aerosol-generating article.
  • Some embodiments of the present disclosure are also directed to providing an aerosol generation device capable of effectively heating the tobacco granule-based aerosol-generating article.
  • Some embodiments of the present disclosure are also directed to providing an aerosol generation device capable of operating in a set mode among a smokeless mode and a smoking mode and an aerosol-generating article that can be used with the aerosol generation device.
  • Some embodiments of the present disclosure provide a tobacco rod including a first filter segment, a second filter segment disposed upstream of the first filter segment, and a cavity segment which is formed by the first filter segment and the second filter segment and filled with tobacco granules.
  • both the first filter segment and the second filter segment may be paper filters.
  • the first filter segment may be a cellulose acetate filter
  • the second filter segment may be a paper filter
  • a density of the tobacco granules may be in a range of 0.5 g/cm 3 to 1.2 g/cm 3 .
  • a diameter of the tobacco granules may be in a range of 0.3 mm to 1.2 mm.
  • a filling rate of the tobacco granules in the cavity segment may be about 80 vol% or lower.
  • resistance to draw of the first filter segment may be in a range of 50 mmH 2 O/60 mm to 150 mmH 2 O/60 mm.
  • the first filter segment may include a paper material whose paper width is in a range of 100 mm to 200 mm, and resistance to draw of the first filter segment may be in a range of 50 mmH 2 O/60 mm to 100 mmH 2 O/60 mm.
  • Some embodiments of the present disclosure provide an aerosol-generating article that is used with an aerosol generation device, the aerosol-generating article including: a tobacco rod filled with tobacco granules; and a filter rod, wherein the tobacco rod includes a first filter segment, a second filter segment, and a cavity segment which is formed by the first filter segment and the second filter segment and filled with the tobacco granules.
  • the filter rod may include a cooling segment and a mouthpiece segment.
  • a cavity segment may be formed by filter segments located upstream and downstream of a tobacco rod, and the cavity segment may be filled with tobacco granules. Accordingly, a tobacco rod that can prevent fall-off of tobacco granules can be easily manufactured.
  • the filter segments forming the cavity segment of the tobacco rod may be made of a paper filter. In this case, a problem that physical properties of the filter segments change due to heating by a heater part can be prevented.
  • an aerosol-generating article which includes a tobacco rod filled with tobacco granules and an aerosol generation device used with the aerosol-generating article may be provided.
  • the provided aerosol-generating article can, by using the tobacco granules, provide a smoking sensation similar to when smoking other heating-type cigarettes.
  • the tobacco rod may be designed so that a vortex is generated inside the cavity segment upon a puff.
  • the generated vortex allows the tobacco granules to be mixed well and heated, the plurality of tobacco granules can be uniformly heated, and as a result, a tobacco smoke taste can be enhanced while a burnt taste is reduced.
  • the heater part of the aerosol generation device may heat only the cavity segment or have a structure in which heating is simultaneously performed from the inside and outside. Accordingly, the tobacco granules filled in the cavity segment can be effectively heated.
  • first, second, A, B, (a), and (b) may be used. Such terms are only used for distinguishing one component from another component, and the essence, order, sequence, or the like of the corresponding component is not limited by the terms.
  • a certain component is described as being “connected,” “coupled,” or “linked” to another component, it should be understood that, although the component may be directly connected or linked to the other component, still another component may also be “connected,” “coupled,” or “linked” between the two components.
  • aerosol-forming agent may refer to a material that can facilitate formation of visible smoke and/or an aerosol.
  • the aerosol-forming agent may include glycerin (GLY), propylene glycol (PG), ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but the aerosol-forming agent is not limited thereto.
  • GLY glycerin
  • PG propylene glycol
  • ethylene glycol dipropylene glycol
  • diethylene glycol diethylene glycol
  • triethylene glycol tetraethylene glycol
  • oleyl alcohol oleyl alcohol
  • aerosol-forming substrate may refer to a material that is able to form an aerosol.
  • the aerosol may include a volatile compound.
  • the aerosol-forming substrate may be a solid or liquid.
  • solid aerosol-forming substrates may include solid materials based on tobacco raw materials such as reconstituted tobacco leaves, shredded tobacco, and reconstituted tobacco
  • liquid aerosol-forming substrates may include liquid compositions based on nicotine, tobacco extracts, and/or various flavoring agents.
  • the aerosol-forming substrate may further include an aerosol-forming agent in order to stably form visible smoke and/or an aerosol.
  • aerosol generation device may refer to a device that generates an aerosol using an aerosol-forming substrate in order to generate an aerosol that can be inhaled directly into the user's lungs through the user's mouth.
  • aerosol-generating article may refer to an article that is able to generate an aerosol.
  • the aerosol-generating article may include an aerosol-forming substrate.
  • a typical example of the aerosol-generating article may include a cigarette, but the scope of the present disclosure is not limited thereto.
  • upstream or “upstream direction” may refer to a direction moving away from an oral region of a user (smoker), and “downstream” or “downstream direction” may refer to a direction approaching the oral region of the user.
  • upstream and downstream may be used to describe relative positions of components constituting an aerosol-generating article.
  • a tobacco rod 21 is disposed upstream from or in an upstream direction of a filter rod 22, and the filter rod 22 is disposed downstream from or in a downstream direction of the tobacco rod 21.
  • puff refers to inhalation by a user, and the inhalation may be a situation in which a user draws smoke into his or her oral cavity, nasal cavity, or lungs through the mouth or nose.
  • longitudinal direction may refer to a direction corresponding to a longitudinal axis of an aerosol-generating article.
  • FIG. 1 is an exemplary view for describing an aerosol generation device 1 according to some embodiments of the present disclosure.
  • FIG. 1 and so on illustrate an example in which an aerosol-generating article 2 is inserted (accommodated) in the aerosol generation device 1.
  • the aerosol generation device 1 may include a housing, a heater part 13, a battery 11, and a controller 12. However, only the components relating to the embodiment of the present disclosure are illustrated in FIG. 1 . Therefore, those of ordinary skill in the art to which the present disclosure pertains should understand that the aerosol generation device 1 may further include general-purpose components other than the components illustrated in FIG. 1 .
  • the aerosol generation device 1 may further include an input module (e.g., a button, a touchable display, etc.) for receiving a command or the like from a user and an output module (e.g., a light emitting diode (LED), a display, a vibration motor, etc.) configured to output information such as a state of the device or smoking information of the device.
  • an input module e.g., a button, a touchable display, etc.
  • an output module e.g., a light emitting diode (LED), a display, a vibration motor, etc.
  • the housing may form an exterior of the aerosol generation device 1. Also, the housing may form an accommodation space for accommodating the aerosol-generating article 2.
  • the housing may be implemented using a material that can protect components therein.
  • the heater part 13 may heat the aerosol-generating article 2 accommodated in the accommodation space. Specifically, when the aerosol-generating article 2 is accommodated in the accommodation space of the aerosol generation device 1, the heater part 13 may heat the aerosol-generating article 2 using power supplied from the battery 11.
  • the heater part 13 may be configured in various forms and/or ways.
  • the heater part 13 may be configured to include an electrically-resistive heating element.
  • the heater part 13 may include an electrically insulating substrate (e.g., a substrate formed of polyimide) and an electrically conductive track, and the heating element configured to generate heat as current flows may be included in the electrically conductive track.
  • the scope of the present disclosure is not limited to the above example, and the heater part 13 may be configured in any other way as long as the heater part 130 can be heated to a desired temperature.
  • the desired temperature may be preset in the aerosol generation device 1 (e.g., a temperature profile may be pre-stored therein) or may be set by the user.
  • the heater part 13 may be configured to include a heating element that operates using an induction heating method.
  • the heater part 13 may include an inductor (e.g., an induction coil) for heating the aerosol-generating article 2 by the induction heating method and a susceptor inductively heated by the induction coil.
  • the susceptor may be disposed outside the aerosol-generating article 2 or inside the aerosol-generating article 2.
  • the heater part 13 may be configured to include a heating element configured to heat the aerosol-generating article 2 from the inside (hereinafter referred to as "internal heating element”), a heating element configured to heat the aerosol-generating article 2 from the outside (hereinafter referred to as “external heating element”), or a combination thereof.
  • the internal heating element may be tubular, needle-shaped, rod-shaped, or the like and disposed to pass through at least a portion of the aerosol-generating article 2
  • the external heating element may be plate-shaped, cylindrical, or the like and disposed to surround at least a portion of the aerosol-generating article 2.
  • the scope of the present disclosure is not limited thereto, and the shapes of the heating elements, the number of heating elements, the arrangement form of the heating elements, and the like may be designed in various ways.
  • the heating structure of the heater part 13 will be described in more detail below with reference to FIGS. 10 to 13 .
  • the battery 11 may supply power used to operate the aerosol generation device 1.
  • the battery 11 may supply power to allow the heater part 13 to heat the aerosol-generating article 2 and may also supply power necessary to operate the controller 12.
  • the battery 11 may supply power necessary to operate electric components such as a display (not illustrated), a sensor (not illustrated), and a motor (not illustrated) that are installed in the aerosol generation device 1.
  • the controller 12 may control the overall operation of the aerosol generation device 1.
  • the controller 12 may control the operation of the heater part 13 and the battery 11 and may also control the operation of other components included in the aerosol generation device 1.
  • the controller 12 may control the power supplied by the battery 11, a heating temperature of the heater part 13, and the like.
  • the controller 12 may check a state of each of the components of the aerosol generation device 1 and determine whether the aerosol generation device 1 is in an operable state.
  • the controller 12 may be implemented with at least one controller (processor).
  • the controller may also be implemented with an array of a plurality of logic gates or implemented with a combination of a general-purpose microcontroller and a memory which stores a program that may be executed by the microcontroller.
  • the controller 12 may also be implemented with other forms of hardware.
  • the aerosol-generating article 2 may have a structure similar to that of a general combustion-type cigarette.
  • the aerosol-generating article 2 may be divided into a first part (e.g., a tobacco rod) which includes a tobacco material (or an aerosol-forming substrate) and a second part (e.g., a filter rod) which includes a filter or the like.
  • the entire first part may be inserted into the aerosol generation device 1, and the second part may be exposed to the outside.
  • only a portion of the first part may be inserted into the aerosol generation device 1, or the entire first part and a portion of the second part may be inserted into the aerosol generation device 1.
  • the user may smoke while holding the second part in his or her mouth.
  • the aerosol-generating article 2 may include a tobacco rod filled with tobacco granules. More specifically, the aerosol-generating article 2 may include a tobacco rod in which tobacco granules are filled in a cavity segment. In order to avoid repeated description, the tobacco rod will be described below with reference to FIG. 6 . Also, the aerosol-generating article 2 according to the present embodiment will be described below with reference to FIG. 7 and so on.
  • the aerosol generation device 1 may have a smokeless function (that is, a function in which visible smoke is not generated during use or a function in which generation of visible smoke is minimized).
  • the aerosol-generating article 2 may be devised to implement the smokeless function.
  • the aerosol-generating article 2 may be an article filled with tobacco granules, and the aerosol generation device 1 may operate to heat the aerosol-generating article 2 at a heating temperature lower than or equal to about 270 °C. In this case, visible smoke may not be generated during smoking, or generation of visible smoke may be minimized.
  • the content of moisture and/or an aerosol-forming agent in the tobacco granules is significantly less than that in other types of tobacco materials such as shredded tobacco (e.g., shredded tobacco leaves, shredded reconstituted tobacco leaves) and reconstituted tobacco leaves, and thus the tobacco granules are able to reduce generation of visible smoke.
  • shredded tobacco e.g., shredded tobacco leaves, shredded reconstituted tobacco leaves
  • reconstituted tobacco leaves e.g., reconstituted tobacco leaves
  • a sufficient tobacco smoke taste can be expressed (that is, nicotine can be sufficiently transferred) at a lower heating temperature as compared to other types of tobacco materials such as shredded tobacco and reconstituted tobacco leaves (e.g., a heating temperature of shredded tobacco is usually 270 °C or higher) and thus the heating temperature of the heater part 130 can be lowered, and as the heating temperature is lowered, generation of visible smoke can be further reduced.
  • a heating temperature of shredded tobacco is usually 270 °C or higher
  • FIGS. 2 and 3 are views for describing aerosol generation devices 1 according to some other embodiments of the present disclosure.
  • the aerosol generation device 1 may further include a cartridge 15 and a cartridge heater part 14.
  • FIG. 2 illustrates a case in which the heater part 13 (or the aerosol-generating article 2) and the cartridge heater part 14 are disposed in series
  • FIG. 3 illustrates a case in which the heater part 13 (or the aerosol-generating article 2) and the cartridge heater part 14 are disposed in parallel.
  • an internal structure of the aerosol generation device 1 is not limited to the examples of FIGS. 2 and 3 , and the arrangement of the components may be changed in any way.
  • the cartridge 15 may include a liquid reservoir and a liquid transfer means. However, the present disclosure is not limited thereto, and the cartridge 15 may further include another component. Also, the cartridge 15 may be manufactured to be attachable to or detachable from the cartridge heater part 14 or may be integrally manufactured with the cartridge heater part 14.
  • the liquid reservoir may store a liquid composition.
  • the liquid composition may be a liquid including a tobacco-containing material (or a nicotine-containing material) or may be a liquid including a non-tobacco material.
  • the liquid composition may include water, a solvent, ethanol, a plant extract (e.g., a tobacco extract), nicotine, a flavoring, an aerosol-forming agent, a flavoring agent, or a vitamin mixture.
  • the flavoring may include menthol, peppermint, spearmint oil, various fruit flavor components, and the like but is not limited thereto.
  • the flavoring agent may include a component that can provide various flavors or tastes to the user.
  • the vitamin mixture may be a mixture of one or more of vitamin A, vitamin B, vitamin C, and vitamin E but is not limited thereto.
  • examples of the aerosol-forming agent may include glycerin or propylene glycol, but the aerosol-forming agent is not limited thereto.
  • the liquid transfer means may transfer the liquid composition stored in the liquid reservoir to the cartridge heater part 14.
  • the liquid transfer means may be a wick component made of a cotton fiber, a ceramic fiber, a glass fiber, and a porous ceramic, but the liquid transfer means is not limited thereto.
  • the cartridge heater part 14 may heat a liquid aerosol-forming substrate (e.g., a liquid composition) stored in the cartridge 15 to form an aerosol.
  • a liquid aerosol-forming substrate e.g., a liquid composition
  • the cartridge heater part 14 may heat a liquid composition, which is transferred thereto by the liquid transfer means, to form an aerosol.
  • the formed aerosol may pass through the aerosol-generating article 2 and be delivered to the user.
  • the aerosol formed due to heating by the cartridge heater part 14 may move along an airflow path of the aerosol generation device 1, and the airflow path may be configured to allow the formed aerosol to pass through the aerosol-generating article 2 and be delivered to the user.
  • the operation, heating temperature, and the like of the cartridge heater part 14 may be controlled by the controller 12.
  • the cartridge heater part 14 may be a metal hot wire, a metal hot plate, a ceramic heater part, or the like but is not limited thereto.
  • the cartridge heater part 14 may consist of a conductive filament such as a nichrome wire and may be disposed to have a structure that is wound around the liquid transfer means.
  • the present disclosure is not limited thereto.
  • carrier heater part and “cartridge” may be interchangeably used with the term “cartomizer,” “atomizer,” or “vaporizer” in the art.
  • the aerosol generation device 1 illustrated in FIG. 2 or 3 may operate in a smokeless mode or a smoking mode. Specifically, the aerosol generation device 1 may operate in a set mode among the smokeless mode and the smoking mode, and the operation mode may be set by the user.
  • the operation mode may be set by the user.
  • each operation mode and the operation of the aerosol generation device 1 will be further described with reference to FIGS. 4 and 5 .
  • the smokeless mode may be a mode in which an aerosol is generated by the aerosol generation device 1 but visible smoke is not generated (or generation of visible smoke is minimized).
  • the controller 12 may operate only the heater part 13 among the cartridge heater part 14 and the heater part 13.
  • the controller 12 may operate only the heater part 13.
  • the cartridge 15 is not heated, and only the aerosol-generating article 2 is heated, and thus generation of visible smoke during use of the device can be prevented.
  • the liquid stored in the cartridge 15 when heated, generates an aerosol including visible smoke, but since heating of the liquid is prevented, generation of visible smoke can also be prevented.
  • the smoking mode may be a mode in which an aerosol is generated by the aerosol generation device 1 and visible smoke is also generated.
  • the smoking mode may be implemented in various ways, and a specific way of implementing the smoking mode may vary according to embodiments.
  • the controller 12 may operate both the cartridge heater part 14 and the heater part 13. In this case, by an aerosol including visible smoke being formed as the liquid stored in the cartridge 15 is heated, and the formed aerosol being released through the aerosol-generating article 2, the smoking mode can be implemented.
  • the heating temperature of the heater part 13 may be set to be lower than that in the smokeless mode. This is because, in the smoking mode, a high-temperature aerosol formed in the cartridge 15 passes through the aerosol-generating article 2, and thus a sufficient tobacco smoke taste can be ensured even when the aerosol-generating article 2 is heated at a relatively low temperature.
  • the heating temperature of the heater part 13 may be about 230 °C or higher (e.g., about 230 °C to 270 °C) in the smokeless mode and may be lower than about 230 °C (e.g., about 220 °C) in the smoking mode.
  • the controller 12 may operate only the cartridge heater part 14. This is because an aerosol including visible smoke is formed even when only the cartridge 15 is heated.
  • the heating temperature of the cartridge heater part 14 according to the present embodiment may be higher than the heating temperature in the previous embodiment.
  • the aerosol generation devices 1 have been described above with reference to FIGS. 1 to 5 .
  • the tobacco rod 21 according to some embodiments of the present disclosure and the aerosol-generating article 2 including the same will be described with reference to FIG. 6 and so on.
  • FIG. 6 is an exemplary view schematically illustrating the tobacco rod 21 according to some embodiments of the present disclosure.
  • the tobacco rod 21 may be a tobacco rod including a cavity or a cavity segment 212 and may, when heated, supply tobacco components (or tobacco smoke taste components) such as nicotine.
  • the tobacco rod 21 may include a first filter segment 211, a second filter segment 213, and the cavity segment 212 formed by the first filter segment 211 and the second filter segment 213. Also, the cavity segment 212 may be filled with tobacco granules 214 (that is, a tobacco material having a granular form). The tobacco rod 21 may further include a wrapper wrapped around the rod.
  • the first filter segment 211 may be a filter segment forming the cavity segment 212 and may be disposed downstream of the cavity segment 212.
  • the first filter segment 211 may also perform an aerosol filtering function, an aerosol cooling function, and the like in addition to a cavity forming function.
  • the first filter segment 211 may include a paper material.
  • the first filter segment 211 may be made of a paper filter.
  • the paper material may be arranged in the longitudinal direction.
  • the present disclosure is not limited thereto.
  • the tobacco rod 21 suitable for the heating-type aerosol generation device 1 may be manufactured. Specifically, a cellulose acetate fiber melts or contracts when heated to a certain temperature or higher and thus is difficult to apply to a portion of the tobacco rod that is heated by the heater part 13.
  • the paper material is hardly denatured due to heat and thus may be easily applied to the portion of the tobacco rod, and in this way, the tobacco rod 21 suitable for the heating-type aerosol generation device 1 can be manufactured.
  • the first filter segment 211 may be made of a cellulose acetate filter. In this case, it is possible to achieve an effect of improving removability of the first filter segment 211.
  • the first filter segment 211 may include a water-resistant or grease-resistant paper material.
  • a problem that components of smoke (e.g., moisture, an aerosol-forming agent) contained in an aerosol are absorbed while passing through the first filter segment 211 and cause a decrease in visible vapor production can be significantly alleviated.
  • the first filter segment 211 includes a typical paper material
  • due to the paper material having a property of absorbing moisture the above-mentioned components of smoke may be absorbed, and thus visible vapor production may decrease.
  • the water-resistant or grease-resistant paper material is applied, since the absorption of the components of smoke hardly occurs, the problem of vapor production reduction can be addressed.
  • the resistance to draw of the first filter segment 211 or the second filter segment 213 may be in a range of about 50 mmH 2 O/60 mm to 150 mmH 2 O/60 mm, and preferably in a range of about 50 mmH 2 O/60 mm to 130 mmH 2 O/60 mm, in a range of about 50 mmH 2 O/60 mm to 120 mmH 2 O/60 mm, in a range of about 50 mmH 2 O/60 mm to 110 mmH 2 O/60 mm, in a range of about 50 mmH 2 O/60 mm to 100 mmH 2 O/60 mm, in a range of about 50 mmH 2 O/60 mm to 90 mmH 2 O/60 mm, in a range of about 50 mmH 2 O/60 mm to 80 mmH 2 O/60 mm, or in a range of about 50 mmH 2 O/60 mm to 70 mmH 2 O/60 mm.
  • suitable inhaling sensation can be ensured.
  • the probability of generation of a vortex in the cavity segment 212 may be increased due to the suitable inhaling sensation, and thus an effect of uniformly heating the plurality of tobacco granules 214 can be achieved. This will be further described below with reference to FIG. 9 .
  • suitable vapor production is ensured within the above numerical ranges when the filter segments 211 and 213 are paper filters (refer to Experimental Example 1).
  • the second filter segment 213 may be a filter segment forming the cavity segment 212 and may be disposed upstream of the cavity segment 212.
  • the second filter segment 213 may also perform a function of preventing fall-off of the tobacco granules 214.
  • the second filter segment 213 may allow the cavity segment 212 to be disposed at a suitable position in the aerosol generation device 1.
  • the second filter segment 213 may prevent the tobacco rod 21 from being detached to the outside and also prevent a liquefied aerosol from flowing from the tobacco rod 21 to the aerosol generation device 1 during smoking.
  • the second filter segment 213 may include a paper material.
  • the second filter segment 213 may be made of a paper filter.
  • the paper material may be arranged in the longitudinal direction.
  • the present disclosure is not limited thereto.
  • the tobacco rod 21 suitable for the heating-type aerosol generation device 1 may be manufactured. Specifically, a cellulose acetate fiber melts or contracts upon contact with an internal heating element and thus may accelerate fall-off of the tobacco granules 214. However, a heat-resistant paper material can significantly mitigate such a phenomenon.
  • the second filter segment 213 may include a water-resistant or grease-resistant paper material. In this case, as mentioned above, the problem that the visible vapor production is decreased can be significantly alleviated.
  • the paper material included in the filter segments 211 and 213 may have various physical properties.
  • grease resistance of the paper material when measured with a 3M Kit Test, may be about 4 or more (that is, about 4 or more in a range of 1 to 12), and preferably greater than or equal to about 5, 6, 7, or 8.
  • visible vapor production that is, the amount of visible smoke generated
  • moisture absorption by the paper material e.g., visible vapor production decreases in the smoking mode
  • a thickness of the paper material may be in a range of about 30 ⁇ m to 50 ⁇ m, and preferably in a range of about 33 ⁇ m to 47 ⁇ m, in a range of about 35 ⁇ m to 45 ⁇ m, or in a range of about 37 ⁇ m to 42 ⁇ m.
  • a basis weight of the paper material may be in a range of about 20 g/m 2 to 40 g/m 2 , and preferably in a range of about 23 g/m 2 to 37 g/m 2 , in a range of about 25 g/m 2 to 35 g/m 2 , or in a range of about 27 g/m 2 to 33 g/m 2 .
  • a tensile strength of the paper material may be about 2.5 kgf/15 mm or higher, and preferably higher than or equal to about 2.8 kgf/15 mm, 3.2 kgf/15 mm, or 3.5 kgf/15 mm.
  • an elongation of the paper material may be about 0.8% or higher, and preferably higher than or equal to about 1.0%, 1.2%, or about 1.5%.
  • a bending stiffness of the paper material may be about 100 cm 3 or higher, and preferably higher than or equal to about 120 cm 3 , 150 cm 3 , or 180 cm 3 .
  • the ash content of the paper material may be about 1.5% or lower, and preferably lower than or equal to about 1.2%, 1.0%, or 0.8%.
  • a paper width of the paper material may be in a range of about 80 mm to 250 mm, and preferably in a range of about 90 mm to 230 mm, in a range of about 100 mm to 200 mm, in a range of about 120 mm to 180 mm, or in a range of about 120 mm to 150 mm. It was confirmed that within such numerical ranges, the filter segments 211 and 213 have suitable resistance to draw, and suitable vapor production is ensured (refer to Experimental Example 1).
  • the cavity segment 212 may be a segment including a cavity and may be disposed between the first filter segment 211 and the second filter segment 213. That is, the cavity segment 212 may be formed by the first filter segment 211 and the second filter segment 213.
  • the cavity segment 212 may be manufactured in various ways. As an example, the cavity segment 212 may be manufactured in a form that includes a tubular structure such as a paper tube. As another example, the cavity segment 212 may be manufactured by wrapping a cavity, which is formed by the two filter segments 211 and 213, with a wrapper made of a suitable material. However, the scope of the present disclosure is not limited thereto, and the cavity segment 212 may be manufactured in any other way as long as the cavity segment 212 can be filled with the tobacco granules 214.
  • a length of the cavity segment 212 may be freely selected from a range of about 8 mm to 12 mm, but the scope of the present disclosure is not limited to such a numerical range.
  • the cavity segment 212 may be filled with the tobacco granules 214.
  • the tobacco granules 214 With the tobacco granules 214, a sufficient tobacco smoke taste can be expressed at a lower heating temperature as compared to other types of tobacco materials (e.g., shredded tobacco leaves, reconstituted tobacco leaves, etc.), and thus power consumption of the heater part 13 can be reduced.
  • an aerosol-generating article e.g., 2 of FIG. 7 or 8 ) that is suitable for implementing the smokeless function of the aerosol generation device 1 can be easily manufactured.
  • the tobacco granules 214 may have various diameters, densities, filling rates, composition ratios of constituents, heating temperatures, and the like, and values thereof may vary according to embodiments.
  • a diameter of the tobacco granules 214 may be in a range of about 0.3 mm to 1.2 mm. Within such numerical ranges, a suitable hardness and ease of manufacture of the tobacco granules 214 may be ensured, and the probability of generation of a vortex in the cavity segment 212 may increase. The vortex generation will be further described below with reference to FIG. 9 .
  • a size of the tobacco granules 214 may be in a range of about 15 mesh to 50 mesh, and preferably in a range of about 15 mesh to 45 mesh, in a range of about 20 mesh to 45 mesh, in a range of about 25 mesh to 45 mesh, or in a range of about 25 mesh to 40 mesh.
  • a suitable hardness and ease of manufacture of the tobacco granules 214 may be ensured, the fall-off of the tobacco granules 214 may be minimized, and the probability of generation of a vortex in the cavity segment 212 may increase.
  • a density of the tobacco granules 214 may be in a range of about 0.5 g/cm 3 to 1.2 g/cm 3 , and preferably in a range of 0.6 g/cm 3 to 1.0 g/cm 3 , 0.7 g/cm 3 to 0.9 g/cm 3 , or 0.6 g/cm 3 to 0.8 g/cm 3 .
  • a suitable hardness of the tobacco granules 214 may be ensured, and the probability of generation of a vortex in the cavity segment 212 may increase. The vortex generation will be further described below with reference to FIG. 9 .
  • a hardness of the tobacco granules 214 may be about 80% or higher, preferably higher than or equal to 85% or 90%, and more preferably higher than or equal to 91%, 93%, 95%, or 97%. Within such numerical ranges, ease of manufacture of the tobacco granules 214 may be improved, and breakage of the tobacco granules 214 may be minimized such that ease of manufacture of the aerosol-generating article 2 may also be improved.
  • the hardness of the tobacco granules 214 may be a value measured on the basis of KSM-1802 ("activated carbon test method"), which is a national standard test method. Reference should be made to the national standard, KSM-1802, for details of a method of measuring the hardness and the meanings of measured values.
  • a filling rate of the tobacco granules 214 in the cavity segment 212 may be about 80 vol% or lower, and preferably lower than or equal to about 70 vol%, 60 vol%, or 50 vol%. Within such numerical ranges, the probability of generation of a vortex in the cavity segment 212 may increase. The vortex generation will be further described below with reference to FIG. 9 . Also, in order to guarantee a suitable tobacco smoke taste, the filling rate of the tobacco granules 214 may be higher than or equal to about 20 vol%, 30 vol%, or about 40 vol%.
  • the tobacco granules 214 may include moisture at about 20 wt% or lower, and preferably lower than or equal to about 15 wt%, 12 wt%, 10 wt%, 7 wt%, or 5 wt%. Within such numerical ranges, generation of visible smoke may be significantly reduced, and the smokeless function of the aerosol generation device 1 may be easily implemented. However, in some other embodiments, the tobacco granules 214 may include moisture higher than about 20 wt%.
  • the tobacco granules 214 may include an aerosol-forming agent at about 10 wt% or lower, and preferably about 7 wt%, 5 wt%, 3 wt%, or 1 wt%.
  • the tobacco granules 214 may not include an aerosol-forming agent.
  • generation of visible smoke may be significantly reduced, and the smokeless function of the aerosol generation device 1 may be easily implemented.
  • the tobacco granules 214 may include an aerosol-forming agent higher than about 10 wt%.
  • a heating temperature of the tobacco granules 214 may be lower than or equal to about 270 °C, 260 °C, 250 °C, 240 °C, or 230 °C.
  • the heater part 13 may heat the tobacco rod 21 at a heating temperature in the above numerical ranges. Within such numerical ranges, it is possible to address a problem that a burnt taste develops due to the tobacco granules 214 being overheated. Further, this minimizes generation of visible smoke while ensuring a suitable tobacco smoke taste, and thus the smokeless function of the aerosol generation device 1 can be easily implemented.
  • the tobacco granules 214 can express a sufficient tobacco smoke taste even when heated to a lower temperature, and thus power consumption of the heater part 13 can be reduced, and generation of visible smoke can be easily suppressed. Also, due to such characteristics, the tobacco granules 214 may be more suitable for implementing the smokeless function of the aerosol generation device 1 than other types of tobacco materials.
  • nicotine content on a wet basis in the tobacco granules 214 may be in a range of about 1.0% to 4.0%, and preferably in a range of about 1.5% to 3.5%, 1.8% to 3.0%, or 2.0% to 2.5%. Within such numerical ranges, an appropriate level of tobacco smoke taste can be ensured.
  • nicotine content on a dry basis in the tobacco granules 214 may be in a range of about 1.2% to 4.2%, and preferably in a range of about 1.7% to 3.7%, 2.0% to 3.2%, or 2.2% to 2.7%. Within such numerical ranges, an appropriate level of tobacco smoke taste can be ensured.
  • the cavity segment 212 may be formed by the two filter segments 211 and 213, and the cavity segment 212 may be filled with the tobacco granules 214. Accordingly, it is easy to manufacture the tobacco rod 21 in which the fall-off of the tobacco granules 214 can be minimized.
  • the filter segments 211 and 213 may be made of paper filters. Since changes in physical properties of the filter segments 211 and 213 hardly occur even when the filter segments 211 and 213 are heated by the heater part 13, the tobacco rod 21 may be suitable for manufacturing the heating-type aerosol-generating article 2.
  • FIG. 7 is an exemplary view schematically illustrating the aerosol-generating article 2 according to some embodiments of the present disclosure.
  • the aerosol-generating article 2 may include the filter rod 22 and the tobacco rod 21.
  • the filter rod 22 may further include general-purpose components other than the components illustrated in FIG. 7 .
  • the filter rod 22 will be described.
  • the filter rod 22 may be disposed downstream of the tobacco rod 21 and perform an aerosol filtering function.
  • the filter rod 22 may include a filter material such as paper, a cellulose acetate fiber, or the like.
  • the filter rod 22 may further include a wrapper wrapped around the filter material.
  • the filter rod 22 may be manufactured in various shapes.
  • the filter rod 22 may be a cylindrical rod or may be a tubular rod which includes a hollow formed therein.
  • the filter rod 22 may be a recessed rod.
  • the filter rod 22 is made of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape.
  • the filter rod 22 may be manufactured to generate a flavor.
  • a flavoring liquid may be sprayed onto the filter rod 22, and a separate fiber having a flavoring liquid applied thereon may be inserted into the filter rod 22.
  • the filter rod 22 may include at least one capsule (not illustrated) containing a flavoring liquid.
  • FIG. 7 illustrates an example in which the filter rod 22 is made of a single segment, but the scope of the present disclosure is not limited thereto, and the filter rod 22 may also be made of a plurality of segments.
  • the filter rod 22 may be made of a cooling segment 222 configured to perform an aerosol cooling function and a mouthpiece segment 221 configured to perform an aerosol filtering function.
  • the filter rod 22 may further include at least one segment configured to perform another function.
  • the cooling segment 222 may be manufactured in various forms.
  • the cooling segment 222 may be manufactured in the form of a paper tube, a cellulose acetate filter having a hollow formed therein, a cellulose acetate filter having a plurality of holes formed therein, a filter filled with a polymer material or biodegradable polymer material, or the like.
  • the form of the cooling segment 222 is not limited thereto, and the cooling segment 222 may be manufactured in any other form as long as the cooling segment 222 can perform an aerosol cooling function.
  • the polymer material or biodegradable polymer material may be a polylactic acid (PLA) woven material but is not limited thereto.
  • the mouthpiece segment 221 may be a cellulose acetate filter (that is, a filter made of a cellulose acetate fiber) but is not limited thereto.
  • the above description of the filter rod 22 may also apply to the mouthpiece segment 221.
  • the aerosol-generating article 2 may be wrapped by at least one wrapper.
  • the aerosol-generating article 2 may be wrapped by a single wrapper.
  • the aerosol-generating article 2 may be wrapped by two or more wrappers that overlap each other.
  • the tobacco rod 21 may be wrapped by a first wrapper, and the filter rod 22 may be wrapped by a second wrapper.
  • the wrapped tobacco rod 21 and filter rod 22 may be combined by a separate wrapper, and the entire aerosol-generating article 2 may be wrapped again by a third wrapper.
  • each of the tobacco rod 21 or the filter rod 22 is made of a plurality of segments, each segment may be wrapped by a separate wrapper.
  • the entire aerosol-generating article 2 in which the segments wrapped by separate wrappers are combined may be wrapped again by another wrapper. At least one hole through which outside air enters or an internal gas leaks may be formed in the wrapper.
  • the aerosol-generating article 2 according to some embodiments of the present disclosure has been described above with reference to FIGS. 7 and 8 . According to the above description, the aerosol-generating article 2 filled with the tobacco granules 214 may be provided.
  • the aerosol-generating article 2 can provide a better smoking sensation and a better sense of familiarity to a user as compared to cartridge-type products (that is, cartridge products filled with tobacco granules) and can also reduce manufacturing costs.
  • the aerosol-generating article 2 suitable for implementing the smokeless function of the aerosol generation device 1 may be provided.
  • the aerosol-generating article 2 includes the tobacco rod 21 filled with the tobacco granules 214, and since content of moisture and/or content of an aerosol-forming agent in the tobacco granules 214 is significantly lower than that in other types of tobacco materials such as shredded tobacco (e.g., shredded tobacco leaves, shredded reconstituted tobacco leaves) and reconstituted tobacco leaves, generation of visible smoke can be significantly reduced.
  • the heating temperature of the aerosol generation device 1 may be set to be relatively low, and due to the heating temperature being low, the generation of visible smoke can be further reduced.
  • FIG. 9 is an exemplary view for describing how the vortex is generated in the aerosol-generating article 2 and conditions therefor according to some embodiments of the present disclosure.
  • FIG. 9 and so on illustrate only the tobacco rod 21 while excluding the filter rod 22.
  • an airflow entering through the second filter segment 213 due to a puff may form a vortex in the cavity segment 212.
  • an irregular airflow may be formed, and in this process, a vortex may be generated.
  • the plurality of tobacco granules 214 may be mixed well and uniformly heated.
  • a first condition relates to a filling rate of the cavity segment 212. This is because a sufficient empty space should be present in the cavity segment 212 for the plurality of tobacco granules 214 to easily move and be mixed. According to experimental results, it was confirmed that a vortex is generated well when a filling rate of the tobacco granules 214 in the cavity segment 212 is about 80 vol% or lower, and it was confirmed that the probability of vortex generation further increases when the filling rate of the tobacco granules 214 in the cavity segment 212 is about 70 vol% or lower.
  • a second condition relates to a density of the tobacco granules 214. This is because when the weight of the tobacco granules 214 is too heavy, it is difficult for the tobacco granules 214 to move due to a puff or an airflow, and the tobacco granules 214 may act as strong resistance to the entering airflow. According to experimental results, it was confirmed that a vortex is generated well when the density of the tobacco granules 214 is about 1.2 g/cm 3 or lower, and it was confirmed that the probability of vortex generation further increases when the density of the tobacco granules 214 is about 1.0 g/cm 3 or lower.
  • a third condition relates to a diameter of the tobacco granules 214.
  • the tobacco granules 214 may act as strong resistance to the entering airflow also when the diameter of the tobacco granules 214 is too large.
  • a fourth condition relates to resistance to draw of the first filter segment 211. This is because when the resistance to draw is too low, false puffs may occur and an inhaling force caused by a puff may not be delivered to the cavity segment 212. According to experimental results, it was confirmed that a vortex is generated well when the resistance to draw of the first filter segment 211 is about 50 mmH 2 O/60 mm or higher, and it was confirmed that the probability of vortex generation further increases when the resistance to draw of the first filter segment 211 is about 70 mmH 2 O/60 mm or higher.
  • the heater part 13 may be configured to include an external heating element 131, and the external heating element 131 may be disposed to heat only the cavity segment 212.
  • the external heating element 131 may be disposed in a form that surrounds at least a portion of the cavity segment 212.
  • the filter segments 211 and 213 are paper filters
  • a problem that vapor production decreases in the smoking mode as moisture absorption by a paper material increases due to heat of the heater part 13 may occur, but this problem can also be addressed.
  • the heater part 13 may be configured to include an external heating element 131.
  • the external heating element 131 may be disposed to heat only the cavity segment 212 and may be disposed so that an unheated portion 215 is formed in the vicinity of a downstream end of the cavity segment 212.
  • the external heating element 131 may be disposed in a form that surrounds portions of the cavity segment 212 excluding the unheated portion 215 thereof.
  • heating efficiency of the heater part 13 can be improved, and the probability of vortex generation can also be further increased.
  • performance of heating the tobacco granules 214 is maintained as it is, and thus the heating efficiency can be improved.
  • the amount of heat substantially transferred to the tobacco granules 214 may hardly decrease even when the heating area is reduced.
  • a temperature difference may occur in the cavity segment 212, and thus the probability of vortex generation may increase.
  • a temperature difference in the cavity segment 212 e.g., the upstream portion thereof is heated to a relatively higher temperature
  • an airflow in the downstream direction may be promoted, and the probability of vortex generation may further increase.
  • the heater part 13 may be configured to include a first external heating element configured to heat the upstream portion of the cavity segment 212 and a second external heating element configured to heat a downstream portion of the cavity segment 212, and the controller 12 may control a heating temperature of the first external heating element to be higher than a heating temperature of the second external heating element. Even in this case, effects similar to those described above can be achieved.
  • the heater part 13 may be configured to include a plurality of external heating elements configured to heat different portions of the cavity segment 212 to different temperatures.
  • the heater part 13 may be configured to include a first external heating element configured to heat a first portion of the cavity segment 212, a second external heating element configured to heat a second portion of the cavity segment 212, and a third external heating element configured to heat a third portion of the cavity segment 212, and the controller 12 may operate the external heating elements at different temperatures.
  • the controller 12 may operate the external heating elements at different temperatures.
  • the heater part 13 may be configured to include an internal heating element 132 and an external heating element 131.
  • the heater part 13 may simultaneously heat the cavity segment 212 from the inside and outside using the two heating elements 131 and 132 to uniformly heat the plurality of tobacco granules 214.
  • a specific way of implementing the heater part 13 may vary.
  • the internal heating element 132 and the external heating element 131 may be implemented to be simultaneously controlled by the controller 12.
  • the two heating elements 131 and 132 may be manufactured in a physically integrated form as illustrated or may be manufactured to have separate forms. In any case, the complexity of a circuit configuration between the controller 12 and the heater part 13 can be reduced.
  • the internal heating element 132 and the external heating element 131 may be implemented to be independently controlled by the controller 12.
  • the two heating elements 131 and 132 may be manufactured to have separate forms and may be controlled to different temperatures by the controller 12.
  • the controller 12 may operate the internal heating element 132 at a heating temperature lower than a heating temperature of the external heating element 131 or may operate the internal heating element 132 only under certain conditions (e.g., operate the internal heating element 132 upon each puff or operate the internal heating element 132 only during a preheating time, etc.).
  • a thickness of the internal heating element 132 may be about 4.0 mm or less, and preferably less than or equal to about 3.0 mm, 2.5 mm, or 2.0 mm. Within such numerical ranges, it is possible to easily address a problem that the tobacco rod 21 is pushed upon insertion of the internal heating element 132 or a filter segment (e.g., 213) is damaged due to the internal heating element 132, and the fall-off of the tobacco granules 214 through a damaged portion of the filter segment (e.g., 213) can also be minimized.
  • the second filter segment 213 is a paper filter and the thickness of the internal heating element 132 is thick
  • a problem that the internal heating element 132 is blocked by a paper material and the tobacco rod 21 is pushed may occur.
  • a problem that the second filter segment 213 is severely damaged due to the internal heating element 132 passing therethrough and the tobacco granules 214 fall off to the outside through the damaged portion may also occur.
  • the internal heating element 132 may have a sharp shape such as a semi-conical shape. In this case, damage to the second filter segment 213 due to the internal heating element 132 and the fall-off of the tobacco granules 214 can be minimized.
  • the heater part 13 may be configured to include an external heating element 131 and a heat conduction element 133 configured to heat the inside of the tobacco rod 21.
  • the heat conduction element 133 may be made of a thermally conductive material and disposed to thermally come into contact with the external heating element 131 and may serve to transfer heat generated in the external heating element 131 to the inside of the tobacco rod 21.
  • the heater part 13 may use a particulate susceptor material (hereinafter referred to as "susceptor particles") to heat the cavity segment 212 by an induction heating method.
  • the heater part 13 may be configured to include an inductor (e.g., an induction coil) for inductively heating a susceptor material, and a plurality of susceptor particles may be disposed inside the cavity segment 212.
  • an inductor e.g., an induction coil
  • a plurality of susceptor particles may be disposed inside the cavity segment 212.
  • the susceptor particles may be disposed in various ways.
  • the susceptor particles may be filled in the cavity segment 212 together with the tobacco granules 214.
  • the susceptor particles may constitute a portion of the tobacco granules 214. For instance, by adding the susceptor particles when producing the tobacco granules 214, tobacco granules 214 including the susceptor particles may be produced.
  • the heater part 13 may be configured to include an internal heating element and an external heating element which is configured to heat only the cavity segment 212.
  • a cigarette having a structure identical to the structure of the aerosol-generating article 2 illustrated in FIG. 8 was manufactured. Specifically, a cigarette having a circumference of about 22 mm and a length of about 48 mm was manufactured, and about 150 mg of tobacco granules was added to a cavity segment of a tobacco rod. Also, crepe paper (that is, paper subjected to a crimping process) having a paper width of about 150 mm was added to manufacture a paper filter having resistance to draw of about 70 mmH 2 O/60 mm (refer to Table 1 below), and the manufactured paper filter was cut to be used as a filter segment of the tobacco rod. Also, a paper tube was used as a cooling segment of a filter rod, and a cellulose acetate filter was used as a mouthpiece segment.
  • a cigarette identical to that of Example 1 was manufactured except that paper having a paper width of about 150 mm was added to manufacture a paper filter having resistance to draw of about 70 mmH 2 O/60 mm (refer to Table 1 below) and the manufactured paper filter was cut to be used as a filter segment of the tobacco rod.
  • crepe paper having a lower crimping strength as compared to Example 1 was added to manufacture the paper filter.
  • a cigarette identical to that of Example 1 was manufactured except that paper having a paper width of about 120 mm was added to manufacture a paper filter having resistance to draw of about 70 mmH 2 O/60 mm (refer to Table 1 below) and the manufactured paper filter was cut to be used as a filter segment of the tobacco rod.
  • crepe paper having a higher crimping strength as compared to Example 1 was added to manufacture the paper filter.
  • Example 2 A cigarette identical to that of Example 1 was manufactured except that paper having a paper width of about 120 mm was added to manufacture a paper filter having resistance to draw of about 50 mmH 2 O/60 mm (refer to Table 1 below) and the manufactured paper filter was cut to be used as a filter segment of the tobacco rod.
  • crepe paper having a higher crimping strength as compared to Example 2 was added to manufacture the paper filter.
  • a cigarette identical to that of Example 1 was manufactured except that paper having a paper width of about 120 mm was added to manufacture a paper filter having resistance to draw of about 100 mmH 2 O/60 mm (refer to Table 1 below) and the manufactured paper filter was cut to be used as a filter segment of the tobacco rod.
  • crepe paper having a higher crimping strength as compared to Example 3 was added to manufacture the paper filter.
  • Table 1 The specifications of the paper filters used in manufacturing the cigarettes according to Examples 1 to 5 are summarized in Table 1 below, and the structures and specifications of the cigarettes according to Examples 1 to 5 are summarized in Table 2.
  • Table 1 Classification Circumference (mm) Resistance to draw (mmH 2 O) Paper width (mm) Filter base paper Filter wrapping paper Length (mm)
  • Example 1 22 70 150 Crepe paper MFW 60
  • Example 2 50
  • Example 3 70
  • Example 5 100 120 [Table 2] Classification Tobacco rod Filter rod Filter segment Cavity segment Cooling segment Mouthpiece segment Upstream Downstream
  • Example 2 Paper (150 mm, 50 mmH 2 O/60 mm)
  • Example 3 Paper (120 mm, 70 mmH 2 O/60 mm)
  • Example 4 Paper (120 mm, 50 mmH 2 O/60 mm)
  • Example 5 Paper (120 mm,
  • vapor production of the cigarette according to Example 2 was found to be generally superior to Example 1. Specifically, an increase in the weight of the filter segments according to Example 2 was found to be less (that is, the amount of moisture absorbed by the paper material was found to be less) as compared to Example 1, and visible vapor production was also found to be superior in the cigarette according to Example 2 than in the cigarette according to Example 1. This is determined to be due to adding the paper material with a relatively lower crimping strength in order to decrease the resistance to draw as compared to Example 1.
  • vapor production of the cigarette according to Example 5 was evaluated to be the lowest (that is, visible vapor production was relatively low and an increase in the weight of the filter segments was high), and this is also determined to be for the same reason as above.
  • paper with a relatively small paper width and an extremely high crimping strength was used for the resistance to draw to be about 100 mmH 2 O/60 mm, and this is determined to have affected the vapor production.
  • Example 1 vapor production of the cigarette according to Example 1 was found to be superior. This is determined to indicate that the crimping strength of the paper added to the filter segments has a greater influence on the vapor production than the paper width of the paper. In other words, this is determined to indicate that, even when the paper width of the paper added to the filter segments is large (that is, the amount of added paper is large), the influence of the paper width on the vapor production can be adjusted by decreasing the crimping strength.
  • Tobacco granules having a size in a range of about 30 mesh to 45 mesh were produced, and the produced tobacco granules were added with a filling rate of about 75 vol% to manufacture a cigarette having a structure identical to the structure of the article 2 illustrated in FIG. 7 .
  • Example 6 A cigarette identical to that of Example 6 was manufactured except that filters made of a paper material having grease resistance of about 6 were used.
  • a cigarette identical to that of Example 6 was manufactured except that tobacco granules had a size in a range of about 20 mesh to 30 mesh.
  • Example 6 A cigarette identical to that of Example 6 was manufactured except that tobacco granules were added with a filling rate of about 50 vol%.
  • Example 6 A cigarette identical to that of Example 6 was manufactured except that tobacco granules were added with a filling rate of about 100 vol%.
  • the TPM content of the cigarette according to Example 7 (that is, the cigarette to which the paper material with higher grease resistance is added) was found to be significantly higher as compared to Example 6. This is determined to be due to the paper material with higher grease resistance not absorbing much moisture from an aerosol passing through the filter segments, thus increasing the amounts of an aerosol-forming agent and moisture being transferred. From such experimental results, it can be seen that vapor production can be increased when a paper material with high grease resistance is added.
  • Example 14 and 15 are pictures of the degree of agglomeration of the tobacco granules after smoking and show experimental results relating to Example 6 (in which the tobacco granules have a size in a range of about 30 mesh to 45 mesh) and Example 8 (in which the tobacco granules have a size in a range of about 20 mesh to 30 mesh), respectively.
  • the tobacco granules according to Example 8 (that is, the tobacco granules having a larger size) were agglomerated more than the tobacco granules according to Example 6. That is, it was confirmed that, while the tobacco granules according to Example 6 were relatively evenly spread, some of the tobacco granules according to Example 8 were strongly agglomerated. This is determined to be due to the tobacco granules having a larger size acting as stronger resistance to the entering airflow (e.g., due to an increase in the weight, size, or the like of the tobacco granules, the airflow can be blocked better), thus decreasing the probability of vortex generation.
  • FIGS. 16 to 18 In order to evaluate an influence of the filling rate of tobacco granules on generation of a vortex inside the cavity segment (e.g., 212), a smoking experiment was conducted using the cigarettes according to Examples 6, 9, and 10, and an experiment was conducted to check a degree to which the tobacco granules were agglomerated after smoking. The experimental results are shown in FIGS. 16 to 18 .
  • FIGS. 16 to 18 The experimental results are shown in FIGS.
  • Example 16 , 17 , and 18 are pictures of the degree of agglomeration of the tobacco granules after smoking and show experimental results relating to Example 9 (in which the tobacco granules were added with a filling rate of about 50 vol%), Example 6 (in which the tobacco granules were added with a filling rate of about 75 vol%), and Example 10 (in which the tobacco granules were added with a filling rate of about 100 vol%), respectively.
  • the degree of agglomeration of the tobacco granules according to Example 9 that were added with a filling rate of about 50 vol% was found to be significantly lower than the degree of agglomeration of the tobacco granules according to Example 10 that were added with a filling rate of about 100 vol%. This is determined to be due to an empty space in the cavity segment (e.g., 212) increasing and an airflow being promoted with a decrease in the filling rate, and the probability of vortex generation increasing as the airflow is promoted. From such experimental results, it can be seen that it is preferable for the tobacco granules to be added with a filling rate of about 75 vol% or lower or about 80 vol% or lower.
  • 19 to 21 are pictures of cross-sections of the filter segment (e.g., 213) penetrated by the internal heating element and show experimental results relating to a semi-conical heating element having a thickness of about 2 mm, a cylindrical (bar-shaped) heating element having a thickness of about 2 mm, and a cylindrical heating element having a thickness of about 3 mm, respectively.
  • the thicker the thickness of the heating element the higher the degree of damage to the filter segment. From this, it can be seen that it is preferable for the heating element to have a thickness less than about 3 mm in order to minimize damage to the filter segment and the fall-off of the tobacco granules.
  • a heating element having a sharp shape such as a semi-conical shape, rather than a heating element having a cylindrical shape, in order to minimize damage to the filter segment.
  • the filter segment was pushed upon insertion of the heating element, making it difficult to insert the heating element, and the degree of damage to the filter segment further increased.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP22802865.0A 2021-06-21 2022-04-05 Tige de tabac, article de génération d'aérosol la comprenant, et dispositif de génération d'aérosol utilisé avec celle-ci Pending EP4173495A4 (fr)

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KR1020210079983A KR20220169647A (ko) 2021-06-21 2021-06-21 담배 로드, 이를 포함하는 에어로졸 발생 물품 및 이와 함께 사용되는 에어로졸 발생 장치
PCT/KR2022/004835 WO2022270724A1 (fr) 2021-06-21 2022-04-05 Tige de tabac, article de génération d'aérosol la comprenant, et dispositif de génération d'aérosol utilisé avec celle-ci

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EP4173495A1 true EP4173495A1 (fr) 2023-05-03
EP4173495A4 EP4173495A4 (fr) 2024-01-03

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EP (1) EP4173495A4 (fr)
JP (1) JP7521722B2 (fr)
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TW200900014A (en) * 2007-03-09 2009-01-01 Philip Morris Prod Smoking article filter with annular restrictor and downstream ventilation
RU2524887C1 (ru) 2010-07-30 2014-08-10 Джапан Тобакко Инк. Бездымный ингалятор аромата
MX2016007858A (es) * 2013-12-20 2016-09-19 Philip Morris Products Sa Articulo para fumar que incluye granulos saborizantes que tienen una capa exterior permeable.
GB201421803D0 (en) 2014-12-08 2015-01-21 British American Tobacco Co A smoking article, a filter and a method of manufacturing a smoking article
JP6951245B2 (ja) 2014-12-29 2021-10-20 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 疎水性フィルター
GB2562764A (en) 2017-05-24 2018-11-28 Robert Hopps Jason Tobacco-containing consumable for aerosol generating devices
KR102330282B1 (ko) * 2017-11-01 2021-11-24 주식회사 케이티앤지 에어로졸 발생 물품
JP6516907B1 (ja) * 2018-07-02 2019-05-22 株式会社 東亜産業 タバコ充填物集積体及び電子タバコカートリッジ
JP7066925B2 (ja) * 2019-08-20 2022-05-13 日本たばこ産業株式会社 円筒状加熱式たばこ製品
WO2021215490A1 (fr) 2020-04-22 2021-10-28 日本たばこ産業株式会社 Produit à base de tabac à chauffage sans combustion et produit à base de tabac chauffé électriquement

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EP4173495A4 (fr) 2024-01-03
WO2022270724A1 (fr) 2022-12-29
JP2023534357A (ja) 2023-08-09
KR20220169647A (ko) 2022-12-28
JP7521722B2 (ja) 2024-07-24
CN115768288A (zh) 2023-03-07

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