EP4376643A1 - Article de génération d'aérosol non reinsérable après utilisation dans un dispositif de génération d'aérosol - Google Patents

Article de génération d'aérosol non reinsérable après utilisation dans un dispositif de génération d'aérosol

Info

Publication number
EP4376643A1
EP4376643A1 EP22747354.3A EP22747354A EP4376643A1 EP 4376643 A1 EP4376643 A1 EP 4376643A1 EP 22747354 A EP22747354 A EP 22747354A EP 4376643 A1 EP4376643 A1 EP 4376643A1
Authority
EP
European Patent Office
Prior art keywords
aerosol generation
shape
circumferential portion
heating chamber
cross
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
EP22747354.3A
Other languages
German (de)
English (en)
Inventor
Alec WRIGHT
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.)
JT International SA
Original Assignee
JT International SA
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 JT International SA filed Critical JT International SA
Publication of EP4376643A1 publication Critical patent/EP4376643A1/fr
Pending legal-status Critical Current

Links

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
    • A24D1/20—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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers

Definitions

  • the present invention relates to aerosol generation articles intended to be used in aerosol generation devices.
  • Some aerosol generation devices comprise a heating chamber arranged for receiving an aerosol generation article (or consumable) comprising a wrapper containing a “solid” aerosol generation substrate. This heating chamber is arranged for heating the aerosol generation substrate to generate, in the presence of air, an aerosol that may be inhaled by a user during a vaping session.
  • the invention concerns more particularly aerosol generation articles (or consumables) comprising a “solid” aerosol generation substrate (for instance a tobacco stick) and possibly similar to traditional cigarettes.
  • a “solid” aerosol generation substrate for instance a tobacco stick
  • aerosol generation substrate is used to designate any solid material that is aerosolizable in air to form an aerosol.
  • the aerosol generation substrate may comprise one or more of nicotine, tobacco material, cannabinoid, polyol, caffeine or other active components.
  • An active component may be carried by a carrier which may include propylene glycol or glycerin, for instance.
  • a flavoring may also be present in the aerosol generation material and may include Ethylvanillin (vanilla), menthol, Isoamyl acetate (banana oil) or similar, for instance.
  • aerosol may include a suspension of substance as one or more of solid particles, liquid droplets and gas. Such a suspension may be in a gas including air. Aerosol herein may generally refer to, or include, a vapor, and may include one or more components of the aerosol generation material.
  • the aerosol generation articles (or consumables) described above are intended to be used only once in aerosol generation devices called “T-vapor (or heat-not-burn (or “HnB”)) devices”. If such an aerosol generation article is reused, the flavor and vapor formation is poor but also there is a chance that it could break up in the heating chamber causing a device failure.
  • the aerosol generation article before and after use keeps the same shape and size, it is not always immediately obvious for its user if it has been used or not. Moreover, when the user has finished with an aerosol generation article (after a vaping session) he often removes it from the heating chamber and then puts it back in the package with unused aerosol generation articles until it can be responsibly disposed of. It is therefore the color of the aerosol generation article that allows the user to make the difference with unused aerosol generation articles, but such a differentiation may be tricky if this aerosol generation article has not been completely consumed or if the lighting is non-favorable.
  • the present invention aims at preventing reinsertion of an aerosol generation article that has been previously used, even partially, in the heating chamber of an aerosol generation device defining a T-vapor device.
  • the proposed invention provides an embodiment of an aerosol generation article, intended for being used in an aerosol generation device comprising a heating chamber, and comprising a wrapper containing an aerosol generation substrate.
  • This aerosol generation article is characterized in that its wrapper comprises a deformable circumferential portion configured to be deformed from a first cross-sectional shape into a second cross-sectional shape after having been inserted and heated at a heating temperature in the heating chamber during aerosol generation, and more particularly after having been removed from the heating chamber.
  • the invention also provides an aerosol generation system comprising an aerosol generation device including a heating chamber and an aerosol generation article comprising a wrapper containing an aerosol generation substrate.
  • the wrapper comprises a deformable circumferential portion configured to be deformed from a first cross-sectional shape into a second cross-sectional shape after having been heated at a heating temperature in the heating chamber during aerosol generation, and more particularly after having been removed from the heating chamber.
  • the first cross-sectional shape corresponds to a cross-sectional shape of the heating chamber.
  • the second cross-sectional shape does not correspond to the cross-sectional shape of the heating chamber.
  • the aerosol generation article cannot be re-inserted into the heating chamber after its removal because the second cross-sectional shape is not compatible with the cross-sectional shape of the heating chamber.
  • the first cross-sectional shape of its deformable circumferential portion can change into the second cross- sectional shape as allowed by its own characteristics, which was impossible inside the heating chamber. Therefore, the second cross-sectional shape taken by the deformable circumferential portion outside the heating chamber prevents the aerosol generation article from reinsertion into the heating chamber, in particular because the second cross-sectional shape of the circumferential portion no longer corresponds to (i.e. , is no longer compatible with) the cross-sectional shape of the heating chamber.
  • circumferential portion refers to a portion of the aerosol generation article which extends along the full circumference or a part of the circumference of a surface of the aerosol generation article.
  • the embodiment of aerosol generation article may comprise other features, considered separately or combined, as defined hereafter.
  • the deformable circumferential portion is preferably configured to expand in at least one direction perpendicular to a longitudinal direction of the aerosol generation article from said first cross-sectional shape into said second cross-sectional shape.
  • the deformable circumferential portion is configured to expand in a radial direction.
  • the deformable circumferential portion is configured to expand in a plurality of radial directions perpendicular to a longitudinal direction of the aerosol generation article.
  • the first cross-sectional shape is substantially circular
  • the second cross-sectional shape may be non circular, e.g., elliptic.
  • the aerosol generation article has a dimension in said at least one direction which is greater than a dimension, e.g., diameter, of the heating chamber of the aerosol generation device, thus preventing re-insertion of the aerosol generation article into the heating chamber because the second cross-sectional shape is no longer compatible with the cross-sectional shape of the heating chamber.
  • the deformable circumferential portion may comprise a shape-memory material having a shape memory effect with a transition temperature above a predefined ambient temperature.
  • the material may be a shape-memory material having a shape memory effect with a transition temperature between 50°C and 200°C (and preferably between 60°C and 200°C).
  • the shape-memory material may comprise at least one metal.
  • the shape-memory material may be arranged in the form of a sheet or at least one wire or a combination thereof.
  • a sheet the latter may have a flat or tubular configuration.
  • a wire the latter may have a ring or an open or closed loop configuration.
  • the deformable circumferential portion may comprise a bimetallic element.
  • the deformable circumferential portion may be arranged in the form of a sheet having a flat or tubular configuration, for instance.
  • the deformable circumferential portion may extend along a part of an axial length of the wrapper.
  • the deformable circumferential portion may extend from an end of the wrapper.
  • the aerosol generation article may be in the form of a rod or a plate or else a card.
  • the plate may be planar, corrugated, undulated or U-shaped.
  • the aerosol generation substrate may comprise a tobacco material or at least one aerosol former.
  • the aerosol former may be a polyol.
  • the amount of aerosol former is preferably between 5 and 30 wt. % of the aerosol generation substrate.
  • the aerosol generation substrate may further comprise a binder.
  • the binder may comprise gum (e.g. guar gum) or polysaccharide, for instance.
  • the aerosol generation substrate may further contain cellulose fiber or another filler.
  • the invention relates to an aerosol generation article for use in an aerosol generation device, comprising a wrapper forming a cavity containing an aerosol generation substrate, wherein the wrapper comprises a deformable circumferential portion configured to be deformed from a first shape to a second shape when heated to a temperature of at least 50°C.
  • the deformable circumferential portion can be circular or arcuated, for instance.
  • the deformable circumferential portion can be at least partially linear or non-circular, in particular angular, for instance.
  • the material of the deformable circumferential portion may be a shape- memory material having a shape memory effect with a transition temperature between 50°C and 200°C, preferably between 60°C and 200°C.
  • the proposed invention provides also an embodiment of a method intended for using an aerosol generation device comprising a heating chamber.
  • This method is characterized in that it comprises:
  • the second shape of the deformable circumferential portion of the aerosol generation article is such that the aerosol generation article can no longer be inserted in the heating chamber.
  • FIG.1 schematically and functionally illustrates an example of embodiment of an aerosol generation device in which an example of embodiment of an aerosol generation article according to the invention has been inserted
  • FIG.2 schematically illustrates, in a perspective view, an example of embodiment of an aerosol generation article according to the invention before use during a vaping session
  • FIG.3 schematically illustrates, in a perspective view, the aerosol generation article of figure 2 after use during a vaping session and after removal from an aerosol generation device
  • FIG.4 schematically illustrates, in a front view, the deformable circumferential portion of the aerosol generation article of figure 3,
  • FIG.5 schematically illustrates, in a front view, a deformable circumferential portion having a star cross-sectional shape after use during a vaping session and after removal from an aerosol generation device
  • FIG.6 schematically and functionally illustrates an example of algorithm implementing a method according to the invention.
  • FIG.6 schematically and functionally illustrates an example of algorithm implementing a method according to the invention.
  • the invention aims at offering an aerosol generation article 2 intended to be inserted into, and used in, an aerosol generation device 1 to allow a user to have a vaping session, but that is non-reinsertable into this aerosol generation device 1 after having been used and removed from the latter (1).
  • the aerosol generation device 1 is (or constitutes) an electronic cigarette (or e-cigarette or else personal vaporizer). But the aerosol generation device 1 could be of another type, as soon as it allows to transform an aerosol generation substrate, in solid form and contained in an aerosol generation article, into an aerosol (possibly close to room temperature). More generally, the invention concerns any type of T-vapor (or heat-not-burn (or HnB)) device comprising a heater for heating an aerosol generation substrate in solid form and contained in an aerosol generation article.
  • the aerosol generation article (or consumable) 2 is a tobacco stick.
  • the aerosol generation substrate comprises at least tobacco material (possibly shredded tobacco). But the invention is not limited to this type of aerosol generation article.
  • an “aerosol generation substrate” is used to designate any solid material that is aerosolizable in air to form an aerosol.
  • the aerosol generation substrate may comprise homogenized tobacco material. It may comprise aerosol former and nicotine, cannabinoid or caffeine, for instance.
  • the aerosol former may comprise polyhydric alcohol(s) such as glycerine and/or polypropylene glycol or water.
  • the tobacco material may be cast sheet, laminated tobacco or tobacco paper and/or flavoring (e.g. menthol).
  • the aerosol generation substrate may comprise tobacco cut filler, other fillers such as cellulose pulp and other ingredients such as sugar, starch, gums, acids, cellulose derivates, etc.
  • tobacco cut filler other fillers such as cellulose pulp and other ingredients such as sugar, starch, gums, acids, cellulose derivates, etc.
  • aerosol may include a suspension of substance as one or more of solid particles, liquid droplets and gas, and that such a suspension may be in a gas including air.
  • an aerosol generation device that can use an aerosol generation article 2 according to the invention, comprises at least a heating chamber 7 defined in a casing of an aerosol generation unit 3 controlled by a controller 6.
  • the casing (and therefore its heating chamber 7) is arranged for receiving an aerosol generation article 2 (here a tobacco stick) comprising a wrapper 4 containing an aerosol generation substrate 8, through an opening 9 whose access is possibly controlled by an occluding element.
  • the internal shape of the heating chamber 7 is, along at least a length of the heating chamber 7, similar or complementary to the shape of the aerosol generation article 2.
  • this shape may be in the form of a rod or a plate or else a card.
  • the shape of the aerosol generation article 2 (and therefore of the heating chamber 7) is in the form of a cylinder rod.
  • the heating chamber 7 is arranged for heating (without burning) the aerosol generation substrate 8 mixed with air to cause its transformation into an aerosol that may be inhaled by a user through successive draws (or “puffs” or inhalation phases) during a vaping session.
  • the casing and its heating chamber 7 communicates with an air outlet 10 of an air flow channel 11 to be supplied with air originating from at least one air inlet 12 of this air flow channel 11.
  • the air inlet 12 may be formed as an enlargement of the opening 9 and the heating chamber 7 may comprise longitudinal grooves allowing air to travel from the opening to the end of the aerosol generation substrate 8 in the heating chamber 7.
  • This heating is performed by a heater 14 supplied with electrical energy originating from a power source 15. This heater 14 may belong to the aerosol generation unit 3.
  • the heater 14 surrounds the casing and its heating chamber 7, and therefore a part of the aerosol generation article 2 (and more precisely its aerosol generation substrate 8) to heat the latter (8).
  • the heater 14 may be a thin film heater wrapped around the outer surface of the casing (of the heating chamber 7) to heat its side walls and at least a part of its internal volume.
  • the heater 14 could be a coil associated with a susceptor or a resistive coil heater.
  • the coil is arranged for generating an electromagnetic field when it is supplied with an electrical current, and the susceptor is arranged for transforming this electromagnetic field into heat.
  • This susceptor may be a foil of the wrapper 4 of the aerosol generation article 2 that surrounds the aerosol generation substrate 8, or a foil, strips and/or particles located inside the aerosol generation substrate 8.
  • the heater 14 could be located inside the aerosol generation article 2 or inside the heating chamber 7.
  • the heater 14 may heat the aerosol generation substrate 8 at an aerosol generation temperature comprised between 50°C and 350°C, and preferably between 200°C and 320°C.
  • the power source 15 is housed in a body 16 of the aerosol generation device 1.
  • this body 16 also comprises the aerosol generation unit 3.
  • the power source 15 may be a rechargeable battery.
  • the body 16 may comprise an electrical connector to which a charger cable may be connected during a charging session of the rechargeable battery 15.
  • the electrical energy supplied to the heater 14 during a vaping session is controlled by the controller 6.
  • This controller (or control unit) 6 may comprise at least a processor and a memory arranged for performing operations for controlling the aerosol generation unit 3 (and notably its heater 14) during a vaping session and also the power source 15 during a possible charging session.
  • the processor may be a digital signal processor (or DSP), or an application specific integrated circuit (ASIC), or else a field programmable gate array (FPGA). More generally, the processor may comprise integrated (or printed) circuits, or several integrated (or printed) circuits connected therebetween through wired or wireless connections.
  • integrated (or printed) circuits refers here to any type of device capable of carrying out at least one electric or electronic operation.
  • the memory may be a random access memory (or RAM). But it may be any type of device arranged for storing program instructions for the processor.
  • controller (or control unit) 6 may be carried out through the operation of program logic, through dedicated logic, through the interaction of program control and dedicated logic, or even manually (by the user). These functions may be provided through the use of dedicated hardware as well as hardware capable of executing software in association with appropriate software.
  • controller (or control unit) 6 (and notably its processor and memory) may be fixed onto a printed circuit board (or PCB) 17 (here housed in the body 16).
  • PCB printed circuit board
  • the controller (or control unit) 6 may also comprise, in addition to its processor and memory, an input interface, a mass memory (notably for storing intermediate data produced during its calculus and processing), and an output interface for delivering messages and instructions at least for controlling the aerosol generation unit 3 (and notably its heater 14) and the electronic component(s) (such as switch(es)) supplying the electrical power (stored in the power source 15) to the aerosol generation unit 3.
  • the aerosol generation article 2 may comprise a filter 13 at the mouth end of the aerosol generation article 2 with at least part of it forming a mouthpiece of the aerosol generation article 2.
  • the filter 13 may comprise several filter segments (for instance plain cellulose acetate fiber segment(s) and/or center hole segment(s)) and possibly a cavity adjacent to one or two filter segments and formed of paper wrapper.
  • the aerosol generation article 2 may further comprise a cooling or spacer element positioned between the aerosol generation substrate 8 and the filter 13.
  • the cooling or spacer element may be a hollow tubular element formed of paper or polymer or may be a cavity (e.g. rolled paper tube) filled with a cooling material, preferably fibrous material and/or sheet, such as a gathered polylactic acid sheet.
  • the aerosol generation substrate 8, filter 13 and spacer or cooling element are typically combined with paper wrapper.
  • the wrapper 4 of the aerosol generation article 2 comprises a deformable circumferential portion 5 configured to be deformed from a first shape (illustrated in figures 1 and 2) into a second shape (illustrated in figures 3 and 4) after having been inserted and heated at a heating temperature in the heating chamber 7 during aerosol generation, and subsequently cooled to a temperature that is lower than the heating temperature.
  • the deformable circumferential portion 5 wants to change its first shape but such a change cannot occur as the shape of the heating chamber 7 holds it in place. But, once the aerosol generation article 2 has been removed from the heating chamber 7 the first shape of its deformable circumferential portion 5 can change into the second shape as allowed by the characteristics (possibly shape-memory characteristics) of the material constituting the deformable circumferential portion 5. Therefore, the second shape taken by the deformable circumferential portion 5 prevents the aerosol generation article 2 from being reinserted into the heating chamber 7. After cooling the second shape is maintained. [45] For instance, the deformable circumferential portion 5 may be stuck to or embedded in the wrapper 4.
  • the wrapper 4 may be made of paper or paper and aluminium laminate.
  • the first shape of the deformable circumferential portion 5 is circular. But, it could be rectangular or square, for instance.
  • the second shape of the deformable circumferential portion 5 (after use) is elliptic. But, it could be circular or roughly rectangular, for instance. More generally, the second shape is defined to not fit within the internal shape or cross-section of the heating chamber 7.
  • the second shape is preferably non-circular.
  • the second shape may be angular, fluted or undulated compared to a rounded or curved first shape.
  • the second shape may have a substantially star or polygonal cross-sectional shape. An example of a star cross-sectional shape is illustrated in figure 5.
  • the deformable circumferential portion 5 may comprise a shape-memory material having a shape memory effect with a transition temperature above a predefined ambient temperature.
  • a shape memory effect of the shape-memory material causes a shape change thereof, and this shape change remains stable after cooling outside the heating chamber 7.
  • the heating chamber 7 may restrain a change of shape of the deformable circumferential portion 5 or prevent the deformable circumferential portion 5 from deforming or changing shape, in particular when the surface of the heating chamber 7 snugly fits or even compresses the deformable circumferential portion 5.
  • the shape- memory material alloy is allowed to take a second shape, e.g. by expanding, relaxing, bending, stretching, etc., as a result of the material having attained a temperature above the transition temperature of the shape-memory material. It is possible that the deformable circumferential portion 5 starts changing shape in the heating chamber 7 or during removal due to possible presence of a gap. However, such deformation should be kept minimal to prevent the aerosol generation article 2 from becoming stuck in the aerosol generation device 1.
  • the predefined ambient temperature may be typically equal to 25°C.
  • the material may be a shape-memory material having a shape memory effect with a transition temperature between 50°C and 200°C, and preferably between 60°C and 200°C.
  • the shape-memory material may comprise at least one metal.
  • it may be an alloy such as iron-based and copper-based shape-memory alloys (orSMAs), such as Ni-Ti, Fe-Mn-Si, Cu-Zn-AI and Cu- Al-Ni alloys.
  • SMAs shape-memory alloys
  • the material can be Ni-Ti-Cu with respective proportions equal to 45%, 50% and 5%.
  • the shape- memory material may be arranged in the form of a sheet.
  • the sheet may have a flat configuration or a tubular configuration, for instance.
  • the shape-memory material may be arranged in the form of at least one wire or a combination of a sheet and at least one wire.
  • the sheet or wire can be arranged to extend at least a portion of the circumference of the aerosol generation article 2, preferably over at least 70%, most preferably 100% of its circumference.
  • the deformable circumferential portion 5 may comprise a bimetallic element.
  • the bimetallic materials usually deform under heating due to the difference in thermal expansion and temperature coefficient properties of the two metals constituting the circumferential portion.
  • a bimetallic material may be constituted by of any two: of copper, steel, iron or brass.
  • the bimetallic materials can be steel and copper or steel and brass.
  • the deformable circumferential portion 5 may be arranged in the form of a sheet having a flat or tubular configuration.
  • the deformable circumferential portion 5 may extend along a part of an axial length of the wrapper 4.
  • the deformable circumferential portion 5 may extend from an end of the wrapper 4 which is opposite to the possible filter 13. But in a variant of embodiment the deformable circumferential portion 5 could extend along a part of the axial length of the wrapper 4, between the opposite ends of the aerosol generation substrate 8.
  • the invention can be also considered as a method intended for using the aerosol generation device 1.
  • this method comprises a step 100 in which an aerosol generation article 2 is inserted at least partly into the heating chamber 7.
  • the method further comprises a step 110 in which the inserted aerosol generation article 2 is heated at the heating temperature (by the heater 14) for generating aerosol.
  • the method further comprises a step 120 in which the aerosol generation article 2 is removed from the aerosol generation device 1 to allow the deformable circumferential portion 5 to deform to a second shape.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

L'invention concerne un article de génération d'aérosol (2) qui peut être utilisé dans un dispositif de génération d'aérosol (1) comprenant une chambre de chauffage (7), et comprend une enveloppe (4) contenant un substrat de génération d'aérosol (8), et une partie circonférentielle déformable conçue pour être déformée d'une première forme à une seconde forme après avoir été insérée et chauffée à une température de chauffage dans la chambre de chauffage (7) pendant la génération d'aérosol.
EP22747354.3A 2021-07-29 2022-07-26 Article de génération d'aérosol non reinsérable après utilisation dans un dispositif de génération d'aérosol Pending EP4376643A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21188459 2021-07-29
PCT/EP2022/070935 WO2023006742A1 (fr) 2021-07-29 2022-07-26 Article de génération d'aérosol non reinsérable après utilisation dans un dispositif de génération d'aérosol

Publications (1)

Publication Number Publication Date
EP4376643A1 true EP4376643A1 (fr) 2024-06-05

Family

ID=77126642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22747354.3A Pending EP4376643A1 (fr) 2021-07-29 2022-07-26 Article de génération d'aérosol non reinsérable après utilisation dans un dispositif de génération d'aérosol

Country Status (3)

Country Link
EP (1) EP4376643A1 (fr)
JP (1) JP2024530573A (fr)
WO (1) WO2023006742A1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200136440A (ko) * 2018-04-09 2020-12-07 필립모리스 프로덕츠 에스.에이. 열 제어 요소를 갖는 래퍼를 갖는 에어로졸 발생 물품

Also Published As

Publication number Publication date
WO2023006742A1 (fr) 2023-02-02
JP2024530573A (ja) 2024-08-23

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