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WO2025087907A1 - Article de génération d'aérosol - Google Patents

Article de génération d'aérosol Download PDF

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Publication number
WO2025087907A1
WO2025087907A1 PCT/EP2024/079833 EP2024079833W WO2025087907A1 WO 2025087907 A1 WO2025087907 A1 WO 2025087907A1 EP 2024079833 W EP2024079833 W EP 2024079833W WO 2025087907 A1 WO2025087907 A1 WO 2025087907A1
Authority
WO
WIPO (PCT)
Prior art keywords
aerosol generating
heating
power supply
aerosol
generating article
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
PCT/EP2024/079833
Other languages
English (en)
Inventor
Ali-Murat SAYGILI
Matteo BRUNA
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 WO2025087907A1 publication Critical patent/WO2025087907A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the invention relates to the technical field of aerosol generating articles.
  • Reduced-risk products have become popular alternatives to traditional tobacco products such as cigarettes. By contrast to these traditional products, which rely on combustion of tobacco, reduced-risk products typically produce a vapor or aerosol for inhalation by a user.
  • Heated substrate aerosol generating products also known as heat-not-burn products, are one class of reduced-risk product.
  • a heated substrate aerosol generating device an aerosol generating article containing a tobacco substrate with other suitable aerosolisable materials (e.g. humectants, flavors) is heated to a temperature that is sufficiently high to generate an aerosol from the substrate but not so high as to cause combustion of the substrate.
  • This aerosol does not contain the undesired by-products that are generated when the material combusts.
  • a typical electrically heated substrate aerosol generating device contains a heating chamber that defines a cavity adapted to receive the aerosol -generating article, generally in the form of a stick to be heated.
  • the substrate is heated inside the cavity in order to generate the desired aerosol and to deliver aerosol via puffs when the user inhales through the mouth end of the article.
  • the aerosol -generating article After exhaustion of the substrate in the article, and/or after a predetermined heating time and/or number of puffs controlled by the device, the aerosol -generating article must be removed and replaced by a fresh stick.
  • Heated substrate aerosol generating devices are typically formed with a relatively compact construction so as to provide a hand-held device that is convenient to store and carry.
  • aerosol-generating article comprises a tobacco part (or other aerosol generating segment), a cooling or spacing part, and a mouthpiece.
  • An aerosol generating device comprising a thin-film heater surrounding the receiving cavity (“oven”) for heating the aerosol generating is known.
  • this technology may have some disadvantages, such as long warming-up, insufficient aerosol or inconsistent aerosol delivery or accumulation of residues in the oven.
  • This technology may also have some other disadvantages, such as the use of a rechargeable aerosol generating device including its housing, its electronics, as well as its own rechargeable battery.
  • WO 2019206337A1, KR101995792B1 or CN20976900U there are known smoking devices which associate a rechargeable aerosol generating device (with its own rechargeable battery) with an aerosol generating consumable.
  • the rechargeable aerosol generating device presents an oven cavity receiving the fully passive aerosol generating consumable article including its own heating element, but there is still a need for a rechargeable power supply which still remains within the rechargeable aerosol generating device.
  • the object of the present invention is to alleviate at least partly the above-mentioned drawbacks.
  • the invention aims to provide for a simple heating structure, which allows for both rather uniform and efficient heating of the section of the heat-not-burn consumable part which contains flavor, so as to exhale flavor in a satisfactory manner for the user, while avoiding as much as possible any burning of this heat-not-burn consumable part out of health grounds for the user, and without needing for a rechargeable aerosol generating device receiving in its oven cavity an aerosol generating article.
  • the aerosol generating consumable article according to the invention includes both a heating layer of the aerosol generating portion and a power supply to power this heating layer, so as to be completely self-sufficient, without needing the usual aerosol generating device to plug in its cavity the usual aerosol generating article.
  • an electrically conductive heating track is implemented next to the aerosol substrate of the aerosol -generating article, and this heating track is heated by a power supply itself implemented within the aerosol generating consumable article itself.
  • the power supply can directly provide an electrical current along a path of the heating track which behaves like an electrical circuit, preferably like an electrical resistor, without need of being powered by an electrical generator which would be external to the aerosol generating article by belonging to a rechargeable aerosol generating device.
  • the power supply included within the aerosol generating article, can be for instance either an electrical voltage source or an electrical current source.
  • an aerosol generating article for being heated to produce an aerosol comprising: an aerosol generating portion containing an aerosol generating substrate, a mouthpiece, a wrapper for assembling the aerosol generating portion and the mouthpiece, a heating element comprising an electrically conducting heating track configured for heating the aerosol generating portion, a power supply configured for powering the heating element, wherein the heating element overlaps at least partially with the aerosol generating portion and, wherein the power supply is positioned between the aerosol generating portion and the mouthpiece.
  • the heater is kept closer to the aerosol generating substrate, so as to avoid heat losses, to increase energy efficiency and to improve aerosol flavor taste during the vaping experience of the user.
  • the increased energy efficiency can lead to reduce the size of the electrical power supply contained within the aerosol generating article, and therefore participates to improve the miniaturization of the aerosol generating article which does not need any rechargeable aerosol generating device anymore.
  • the heating element fully overlaps with the aerosol generating portion, and surrounds the aerosol generating portion, and by longitudinally extending the same length as the aerosol generating portion.
  • the heating element may be located inside the aerosol generating portion.
  • the power supply is positioned between the aerosol generating portion and the mouthpiece, preferably by surrounding the element located between the aerosol generating portion and the mouthpiece, this element being preferably a cooling portion preferably comprises a hollow tube, and by being longitudinally positioned between the aerosol generating portion and the mouthpiece.
  • the power supply is protected from hot generated aerosol by the cooling portion.
  • the power supply may be located inside the hollow tube making the cooling portion, preferably in an annular arrangement inside the hollow tube to leave a hollow channel in the hollow tube for the generated aerosol to pass through the cooling portion.
  • Preferred embodiments comprise one or more of the following features, which can be taken separately or together, either in partial combination or in full combination, with any of previously cited objects of the invention.
  • the electrical power supply is a battery or cell, which is arranged in the form of a tubular element.
  • this tubular battery or cell is a flexible battery or cell which is rolled or wrapped in a tubular shape.
  • this tubular battery or cell can be rigid and have a fixed tubular shape.
  • the power supply is surrounded by the wrapper, preferably made of paper, for wrapping the aerosol generating portion, the heating element and the mouthpiece.
  • the aerosol generating article is made more robust, the power supply being radially sandwiched between the internal cylindrical parts and the external tubular parts of the aerosol generating article.
  • the power supply is fixedly attached to the wrapper and permanently connected to the heating element.
  • the power supply is fully disposable and single use so as to last just enough to heat the content of a single aerosol generating article, preferably of a single stick, advantageously of a single tobacco stick.
  • the power supply is quite miniaturized and easier to implement within an aerosol generating consumable article.
  • the power supply is removably attached to the wrapper and connectable to the heating element.
  • Such connection could be made for example by perforating pins which perforate the wrapper to connect the heating element.
  • connection could be made for example by the heating element presenting external connectors traversing the wrapper.
  • the power supply can then be not fully disposable and can be usable for a limited number of uses, so as to last just enough to heat the content of a limited number of aerosol generating articles, preferably from 2 to 30, or from 3 to 20, or from 5 to 10.
  • This power supply is not depleted after the use with a first aerosol generating article, but contains enough power to be reused for other aerosol generating articles.
  • the power supply which is still disposable but temporarily reusable for a limited number of aerosol generating articles; it can be used for a global number of aerosol generating articles ranging from 2 to 30, more advantageously ranging from 3 to 20, even more advantageously ranging from 5 to 10.
  • the aerosol generating article comprises a cooling portion which extends longitudinally and which is positioned between the aerosol generating portion and the mouthpiece, and the power supply at least partially overlaps with the cooling portion.
  • the power supply is located at an intermediate position, neither too close to the mouthpiece to avoid being too close to the mouth of the user of this aerosol generating article, nor too close to the aerosol generating portion to avoid the hottest part of the aerosol generating article.
  • the cooling portion comprises or is a hollow tube and the wrapper surrounds the power supply to fix it onto the hollow tube.
  • the cooling portion may comprise a ventilation region, for example, formed by one or more rows of perforations through the hollow tube.
  • the ventilation region may be arranged upstream or downstream of the power supply.
  • the ventilation region dilutes aerosol with air at a desired ventilation ratio (e.g., 20%, 30%, 40%, 50% or 60%) and may further contribute to the cooling of the power supply.
  • the power supply is a constant voltage power supply which has a rated voltage ranging from 2 volts to 5 volts, preferably ranging from 2.5 volts to 4 volts.
  • the low voltage range provides the power supply with sufficient energy to the heating track while the power supply remains sufficiently small and lightweight.
  • the electrically conducting heating track is heatable by resistive effect and configured for resistively heating the aerosol generating portion.
  • the electrically conductive heating track is implemented next to the aerosol substrate of the aerosol-generating article, and this heating track is heated by resistive effect when receiving power from a power supply of the aerosol generating device.
  • the power supply can provide an electrical current along a path of the heating track which behaves like an electrical resistor powered by an electrical generator, for instance either an electrical voltage source or an electrical current source.
  • the energy supply is more efficient, by avoiding the usual air gap lying between the aerosol generating article and the internal wall of the heating chamber of the aerosol generating device, which is the internal wall of the cavity of the heating chamber, and by avoiding heat to have to pass through the wrapper of the aerosol generating article, thereby leading both to higher heat efficiency and lower energy consumption.
  • the heating track is applied on an inner side of a support layer, preferably made of paper surrounded by a wrapper.
  • the heating track extends on the support layer by electrodes which are connected or connectable to the power supply. This leads to an even more compact aerosol generating article.
  • the heating track is in direct contact with the aerosol generating substrate or in contact with a rod of the aerosol generating substrate comprising the aerosol generating substrate wrapped by an individual wrapping layer.
  • the energy efficiency is improved to provide still better vaping experience and lower energy consumption.
  • the heating track is printed by electrically conductive ink, preferably containing metal or carbon-based material such as reduced graphene oxide.
  • the heating track can advantageously be printed by inkjet.
  • the heating track can be printed by other technologies such as mask printing. Hence, the manufacturing process of the heating track and of the whole aerosol generating article is made simpler.
  • the thickness of the printed layer of the heating track is equal to or lower than about 1 micrometer (pm).
  • the range of the thickness of the printed layer of the heating track is comprised between 0.25pm and 2pm, or between 0.5pm and 1.5pm.
  • this quite low thickness of the printed layer of the heating track allows for a higher linear resistance and hence for a higher energy dissipation leading to a higher energy transfer to the aerosol generating portion thereby making more efficient the heating of this aerosol generating portion.
  • the electrodes are made of gold, or copper, or silver, or chromium, or a combination thereof.
  • the heating track is made of a conductive metal which can be for example gold, or copper, or bronze or silver, or a combination thereof, or of a Reduced Graphene Oxide for example. Hence, an efficient range of resistivity for the heating track and of the electrodes is more easily achievable.
  • the heating track is a full serial path without any derivation. More preferably, the heating track has a meandering serial path.
  • the heating track extends over at least 50% of the circumference of the aerosol generating portion, or over at least 75% of the circumference of the aerosol generating portion, over at least 90% of the circumference of the aerosol generating portion.
  • the circumference of the aerosol generating portion is the value of the circumference of the aerosol generating portion considered in a cross-sectional plane orthogonal to the longitudinal axis of the aerosol generating portion.
  • the heating of the aerosol generating portion by resistive effect is even more uniformly distributed by the circulation of electric current along the heating track.
  • the heating track comprises straight portions connected together by bends, and wherein the heating track comprises at least 60 such bends, or at least 80 such bends, or at least 100 such bends.
  • the heating of the aerosol generating portion by resistive effect is even more uniformly distributed by the circulation of electric current along the heating track which is more evenly distributed over the external surface of the aerosol generating substrate.
  • the heating track comprises wires encompassing a heating surface, wherein within such heating surface any point is located at less than 3mm from a wire of the heating track, or at less than 2mm from a wire of the heating track, or at less than 1mm from a wire of the heating track.
  • the heating of the aerosol generating portion by resistive effect is even more uniformly distributed by the circulation of electric current along the heating track.
  • the aerosol generating substrate comprises an aerosol former content of at least 8 wt. % in dry basis, preferably comprised between 10 wt.% and 35 wt.% in dry basis.
  • This aerosol generating substrate allows for a heat-not-bum consumable article, preferably for a heat-not-burn stick, more preferably for a heat-not-bum tobacco stick.
  • the aerosol generating article is a rod-shaped stick.
  • the heating track is distributed, evenly and regularly, around the periphery or circumference (i.e. along the external surface) of the aerosol generating substrate, so as to heat uniformly or more uniformly this aerosol generating substrate.
  • Fig. 1 shows an example of an aerosol generating article to be heated by a power supply included in this aerosol generating article, without need of an aerosol generating device anymore, according to a first embodiment of the invention.
  • Fig. 2 shows another example of an aerosol generating article to be heated by a power supply included in this aerosol generating article, without need of an aerosol generating device anymore, according to a second embodiment of the invention.
  • aerosol may include a suspension of vaporizable material as one or more of: solid particles; liquid droplets; gas. Said suspension may be in a gas including air. Aerosol herein may generally refer to/include a vapor. Aerosol may include one or more components of the vaporizable material.
  • the term “aerosol-generating substrate” may refer to a smokable material which may for example comprise nicotine or tobacco or other nicotinoid material and an aerosol former.
  • tobacco may take the form of various materials such as shredded tobacco, granulated tobacco, tobacco leaf and/or reconstituted tobacco.
  • Suitable aerosol formers include: a polyol such as sorbitol, glycerol, and glycols like propylene glycol or triethylene glycol; a non-polyol such as monohydric alcohols, acids such as lactic acid, glycerol derivatives, esters such as triacetin, triethylene glycol diacetate, triethyl citrate, glycerin or vegetable glycerin.
  • the aerosol generating agent may be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol.
  • the content of aerosol former may be present in an amount of from 5 to 30 wt.% in dry basis, preferably 10 to 20 wt.% in dry basis.
  • the substrate may also comprise at least one of a gelling agent, a binding agent, a stabilizing agent, and a humectant.
  • the substrate may contain non-tobacco flavors such as menthol, fruit or spices.
  • Fig. 1 shows an example of an aerosol generating article to be heated by a power supply included in this aerosol generating article, without need of an aerosol generating device anymore, according to a first embodiment of the invention.
  • the aerosol generating article 10 comprises several successive longitudinally aligned sections from one end to the other end: the aerosol generating portion 11, the aerosol cooling section 12, the mouthpiece 13.
  • the aerosol generating portion 11 comprises a front plug (optionally, not represented, located at the free end of the aerosol generating substrate 22) longitudinally aligned with an aerosol generating substrate 22.
  • the aerosol generating substrate 22 is preferably wrapped individually with a wrapping paper to form a cylindrical tobacco plug 22.
  • the aerosol generating substrate or tobacco rod 22 is wrapped by, e.g. a standard cigarette paper and is formed from a long rod which is cut at the proper rod’s length before assembling with the front plug.
  • the front plug is optional.
  • Figure 1 shows an aerosol generating substrate 22 without the optional front plug.
  • the front plug may be formed of filter material such as a cellulose acetate tow or a gathered sheet of filtering paper or nonwoven made of natural cellulose and binder.
  • the front plug may form a plug of filter material with a tubular configuration or a filled configuration.
  • the front plug may have various function, in particular, retaining the aerosol generating substrate within the rod 22, such as controlling the resistance to draw of the article and decreasing the ability of the article to combust.
  • the aerosol generating substrate 22 When the aerosol generating substrate 22 is heated, it generates hot aerosol.
  • the aerosol is entrained with air drawn from the free end of the front plug or aerosol generating substrate towards the downstream end of the article.
  • the aerosol cooling section 12 comprises a first cooling tube 23 longitudinally aligned with a second cooling tube 24 and with a third cooling tube 26.
  • the second cooling tube 24 has a smaller internal diameter than the first cooling tube 23 and also smaller than the third cooling tube 26, so as to constitute a Venturi structure so as to make a Venturi effect for the hot aerosol coming from the aerosol generating substrate 22 through the first cooling tube 23.
  • the cooling section 12 is formed of a single hollow tubular segment, for example, a paper tube.
  • the paper tube may have abasis weight of 80-100 g/m2, e.g., 82 g/m2, a thickness of 80-200 microns, e.g., 100 microns and a length of between 15 and 25 mm, e.g., 20 mm.
  • the paper tube may comprise a ventilation region.
  • the cooling section may further comprise, in addition to the paper tube and adjacent to it in the downstream direction, a tubular member such as a center hole segment formed cellulose acetate such as described in EP3881699.
  • the hollow tubular segment may have a constant inner diameter and/or thickness. Ventilation may be provided in one or both of the cooling tubes.
  • the ventilation may take the form of at least one row of perforations or holes provided through the wrapper and tube(s).
  • the first and/or second and/or third cooling tube 23, 24, 26, may be made of paper, plasticized cellulose acetate or polymer (such as PVA or PLA).
  • the mouthpiece 13 comprises a filter 25 which filters the cooled generated aerosol coming from the third cooling tube 26, before exhaling this cooled generated aerosol towards the mouth of the user.
  • the filter may be formed of a single segment or multiple segments. It may be made of a cellulose acetate tow or a gathered sheet of filtering paper or nonwoven made of natural cellulose and binder.
  • the aerosol cooling section 12 is surrounded by a power supply 36.
  • the power supply may surround the cooling section 12 only partially, for example, only the cooling segments 23, 24 but not cooling segment 26. In this case, a ventilation region can be provided in the downstream cooling segment 26. On the contrary, the power supply may surround the three cooling segments 23, 24, 25.
  • This power supply 36 may be surrounded by a vapor cooling section wrapper 31 which is optional.
  • the mouthpiece 13 is surrounded by an inner wrapper 32.
  • the dimension of the inner wrapper 32 may be sized to the length of the filter 25 or mouthpiece 13.
  • An outer wrapper 33 is arranged for wrapping simultaneously both the mouthpiece 13 and the aerosol generating portion 11, as well as the aerosol cooling section 12. This common wrapper 33 preferably extends along the entire length of the aerosol generating article 10, and is also wrapped around the power supply 36 and its optional vapor cooling section wrapper 31.
  • the common wrapper 33 may be formed of two separate overlapping sections. For instance, a first section of the wrapper 33 combines the aerosol generating portion 11 and the aerosol cooling section 12 to form a front sub-assembly. A second section combines the filter 25, as wrapped by the inner wrapper 32, and the front subassembly. The first and second sections overlaps to provide the final article.
  • the aerosol generating section 11 is only formed by the aerosol generating substrate or tobacco rod 22.
  • the heating wrapper 35 in direct contact with the material of the aerosol generating substrate 22.
  • the wrapping paper of the tobacco rod can be omitted.
  • the heating wrapper 35 is surrounded by the outer common wrapper 33 e.g. an outer paper layer, along the entire length of the aerosol generating article 10.
  • the heating wrapper 35 is an inner paper layer 32 onto which the heating track 40 is applied.
  • the heating track 40 is printed on the inner side of the heating wrapper 32.
  • the heating track 40 is in direct contact with the external surface of the aerosol generating substrate 22.
  • the heating track 40 is a full serial path without any derivation.
  • the heating track 40 extends radially over at least 90% of the circumference of the aerosol generating portion 11, about 95% of the circumference of the aerosol generating portion 11.
  • the heating track 40 comprises straight portions together connected by bends, and wherein the heating track comprises at least 100 of such bends.
  • the heating track 40 comprises wires 47 encompassing a heating surface 48, wherein within such heating surface 48 any point is located at less than about 1mm from a wire 47 of the heating track 40.
  • Fig. 2 shows another example of an aerosol generating article to be heated by a power supply included in this aerosol generating article, without need of an aerosol generating device anymore, according to a second embodiment of the invention.
  • the aerosol generating article 10 comprises several successive longitudinally aligned sections from one end to the other end: the aerosol generating portion 11, the aerosol cooling section 12, the mouthpiece 13.
  • FIG. 2 shows an aerosol generating substrate 22 with the optional front plug 21.
  • the length of the aerosol generating substrate 22 can be for example about 14mm, along the longitudinal extension of the aerosol generating article 10 (shown by the horizontal double arrow within the aerosol generating substrate 22).
  • the front plug 21 may be individually wrapped with a paper wrapper.
  • the front plug 21 may be formed of filter material such as a cellulose acetate tow or a gathered sheet of filtering paper or nonwoven made of natural cellulose and binder.
  • the front plug 21 may form a plug of filter material with a tubular configuration or a filled configuration.
  • the front plug 21 may have various function, in particular, retaining the aerosol generating substrate within the rod 22, controlling the resistance to draw of the article and decreasing the ability of the article to combust.
  • the length of the front plug 21 can be for example about 6 mm, along the longitudinal extension of the aerosol generating article 10 (shown by the horizontal double arrow within the front plug 21).
  • the ventilation may take the form of at least one row of perforations or holes provided through the wrapper and paper tube.
  • the length of the spacing segment 27 can be for example about 20mm, along the longitudinal extension of the aerosol generating article 10 (shown by the horizontal double arrow within the spacing segment 27).
  • the mouthpiece 13 comprises, successively along a longitudinal direction of the aerosol generating article 10, a hollow tubular segment 28 longitudinally aligned with a filter 29 which filters the cooled generated aerosol coming from the spacing segment 27, before exhaling this cooled generated aerosol towards the mouth of the user.
  • the filter 29 may be formed of a single segment or multiple segments. It may be made of a cellulose acetate tow or a gathered sheet of filtering paper or charcoal and/or nonwoven made of natural cellulose.
  • the filter 29 may contain an aerosol flavoring modifier such as a breakable capsule.
  • the hollow tubular segment 28 is for example a hollow tubular cellulose acetate segment 28.
  • the hollow tubular segment 28 has a smaller internal diameter than the spacing segment 27, or at least smaller than the last (more to the right of the figure 2) cooling tube of the spacing segment 27.
  • the length of the mouthpiece 13 can be for example about 20mm, along the longitudinal extension of the aerosol generating article 10 (shown by the horizontal double arrow within the mouthpiece 13).
  • the aerosol cooling section 12 is at least partially surrounded along at least part of its length by a power supply 36.
  • the power supply 36 may extend, e.g. 60 %, 70%, 80%, 90% or 100% of the length of the paper tube.
  • a ventilation region may be provided in the cooling segment which is not surrounded by the power supply, such as downstream or upstream of the power supply.
  • This power supply 36 may be surrounded by a vapor cooling section wrapper 31 which is optional. For example, this wrapper 31 may be omitted if tipping paper 37 can wrap the power supply cell 36 on the spacing segment 27.
  • the mouthpiece 13 is surrounded by an inner wrapper 32.
  • the dimension of the inner wrapper 32 may be sized to the length of mouthpiece 13.
  • Either two overlapping and concentric paper tipping papers 37 and 38 are or is arranged for wrapping simultaneously both the mouthpiece 13 and the aerosol generating portion 11, as well as the aerosol cooling section 12.
  • These two paper tipping papers 37 and 38 preferably extend together along the entire length of the aerosol generating article 10, and are also wrapped around the power supply 36 and its optional vapor cooling section wrapper 31.
  • Each one of the two paper tipping papers 37 and 38 preferably extends only along a portion of the entire length of the aerosol generating article 10, and overlap each other.
  • the aerosol generating portion 11 is surrounded by a heating wrapper 35.
  • the heating wrapper 35 wraps both the optional front plug 21 and the aerosol generating substrate 22.
  • On the internal side of this heating wrapper 35 is printed the heating track 40 which longitudinally extends longitudinally along a length substantially equal to aerosol generating substrate 22.
  • the heating track 40 extends along the same length as the aerosol generating substrate 22.
  • the heating track 40 preferably ends before the optional front plug.
  • mask printing or inkjet printing can be used.
  • the aerosol generating section 11 is only formed by the aerosol generating substrate or tobacco rod 22.
  • the heating wrapper 35 in direct contact with the material of the aerosol generating substrate 22.
  • the wrapping paper of the tobacco rod can be omitted.
  • Two electrodes (in a similar way as on figure 1, but not represented here), respectively located at both ends of the heating track 40, extend longitudinally so as to contact the electrodes of the power supply 36, either in a permanent way or by being connectable to these electrodes of the power supply 36.
  • the resistor made by the heating track 40 is pressing against the aerosol generating substrate 22.
  • the power supply 36 is a flexible flat-based battery or cell 36 which is wrapped or rolled around the spacing segment 27. This flexible flat-based battery or cell 36 is similar to the one shown on figure 1.
  • the heating track 40 is similar to the one shown on figure 1.
  • the invention has been described with reference to preferred embodiments. However, many variations are possible within the scope of the invention.

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  • Resistance Heating (AREA)

Abstract

La présente invention concerne un article de génération d'aérosol destiné à être chauffé pour produire un aérosol, ledit article comprenant : une partie de génération d'aérosol (11) contenant un substrat de génération d'aérosol (22), un embout buccal (13), une enveloppe (33, 37, 38) destinée à assembler la partie de génération d'aérosol (11) et l'embout buccal (13), un élément chauffant (40) comprenant une piste chauffante électroconductrice (40) conçue pour chauffer la partie de génération d'aérosol (11), une alimentation électrique (36) conçue pour alimenter l'élément chauffant (40). L'élément chauffant (40) chevauche au moins partiellement la partie de génération d'aérosol (11) et l'alimentation électrique (36) est positionnée entre la partie de génération d'aérosol (11) et l'embout buccal (13).
PCT/EP2024/079833 2023-10-27 2024-10-22 Article de génération d'aérosol Pending WO2025087907A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23206531.8 2023-10-27
EP23206531 2023-10-27

Publications (1)

Publication Number Publication Date
WO2025087907A1 true WO2025087907A1 (fr) 2025-05-01

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Application Number Title Priority Date Filing Date
PCT/EP2024/079833 Pending WO2025087907A1 (fr) 2023-10-27 2024-10-22 Article de génération d'aérosol

Country Status (1)

Country Link
WO (1) WO2025087907A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108185537A (zh) * 2018-02-26 2018-06-22 冷朝阳 一种气溶胶生成装置及气溶胶生成制品
KR101995792B1 (ko) 2017-12-14 2019-07-03 주식회사 무한기업 전자식 흡연장치
WO2019206337A1 (fr) 2018-04-28 2019-10-31 深圳御烟实业有限公司 Produit permettant de générer un aérosol
CN209769000U (zh) 2019-03-13 2019-12-13 常州市派腾电子技术服务有限公司 用于电子烟的电池装置及电子烟
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