EP3873265A1 - Consommable de substitution pour fumeur - Google Patents

Consommable de substitution pour fumeur

Info

Publication number
EP3873265A1
EP3873265A1 EP19798008.9A EP19798008A EP3873265A1 EP 3873265 A1 EP3873265 A1 EP 3873265A1 EP 19798008 A EP19798008 A EP 19798008A EP 3873265 A1 EP3873265 A1 EP 3873265A1
Authority
EP
European Patent Office
Prior art keywords
article
consumable
aerosol
tobacco
projection
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
EP19798008.9A
Other languages
German (de)
English (en)
Inventor
Kate FERRIE
Edward Ross SHENTON
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.)
IMPERIAL TOBACCO Ltd
Original Assignee
Nerudia Ltd
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 Nerudia Ltd filed Critical Nerudia Ltd
Publication of EP3873265A1 publication Critical patent/EP3873265A1/fr
Pending legal-status Critical Current

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
    • 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
    • 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 present disclosure relates to a consumable for use in a smoking substitute system and particularly, although not exclusively, to a heat-not-burn (HNB) consumable.
  • HNB heat-not-burn
  • the smoking of tobacco is generally considered to expose a smoker to potentially harmful substances. It is generally thought that a significant amount of the potentially harmful substances are generated through the heat caused by the burning and/or combustion of the tobacco and the constituents of the burnt tobacco in the tobacco smoke itself.
  • Conventional combustible smoking articles such as cigarettes, typically comprise a cylindrical rod of tobacco comprising shreds of tobacco which is surrounded by a wrapper, and usually also a cylindrical filter axially aligned in an abutting relationship with the wrapped tobacco rod.
  • the filter typically comprises a filtration material which is circumscribed by a plug wrap.
  • the wrapped tobacco rod and the filter are joined together by a wrapped band of tipping paper that circumscribes the entire length of the filter and an adjacent portion of the wrapped tobacco rod.
  • a conventional cigarette of this type is used by lighting the end opposite to the filter, and burning the tobacco rod. The smoker receives mainstream smoke into their mouth by drawing on the mouth end or filter end of the cigarette.
  • Such smoking substitute systems can form part of nicotine replacement therapies aimed at people who wish to stop smoking and overcome a dependence on nicotine.
  • Smoking substitute systems include electronic systems that permit a user to simulate the act of smoking by producing an aerosol (also referred to as a“vapour”) that is drawn into the lungs through the mouth (inhaled) and then exhaled.
  • aerosol also referred to as a“vapour”
  • the inhaled aerosol typically bears nicotine and/or flavourings without, or with fewer of, the odour and health risks associated with traditional smoking.
  • smoking substitute systems are intended to provide a substitute for the rituals of smoking, whilst providing the user with a similar experience and satisfaction to those experienced with traditional smoking and with combustible tobacco products.
  • Some smoking substitute systems use smoking substitute articles that are designed to resemble a traditional cigarette and are cylindrical in form with a mouthpiece at one end.
  • HNB heat not burn
  • a typical HNB smoking substitute system may include a device and a consumable.
  • the consumable may include the tobacco material.
  • the device and consumable may be configured to be physically coupled together.
  • heat may be imparted to the tobacco material by a heating element of the device, wherein airflow through the tobacco material causes moisture in the tobacco material to be released as vapour.
  • a vapour may also be formed from a carrier in the tobacco material (this carrier may for example include propylene glycol and/or vegetable glycerine) and additionally volatile compounds released from the tobacco. The released vapour may be entrained in the airflow drawn through the tobacco.
  • the vapour passes through the consumable (entrained in the airflow) from an inlet to a mouthpiece (outlet), the vapour cools and condenses to form an aerosol for inhalation by the user.
  • the aerosol will normally contain the volatile compounds.
  • HNB smoking substitute systems heating as opposed to burning the tobacco material is believed to cause fewer, or smaller quantities, of the more harmful compounds ordinarily produced during smoking. Consequently, the HNB approach may reduce the odour and/or health risks that can arise through the burning, combustion and pyrolytic degradation of tobacco.
  • an aerosol-forming article e.g. a smoking substitute article such as an HNB consumable which includes an adaptation providing greater ease of use, in particular greater ease of controlling the movement, position and/or location of the consumable within an external body or housing (for example, a housing associated with a heating device).
  • a smoking substitute consumable such as a HNB consumable, is provided which includes means to limit movement of the consumable relative to an external body, such as a heating device.
  • an aerosol-forming article e.g. heat not burn (HNB) consumable
  • HNB heat not burn
  • the laterally- /radially-extending projection serves to engage with a heating device in order to allow accurate control of the positioning of the article within the device. This ensures that the position of the article within the device is correct to facilitate optimum heating of the article and optimum mouthpiece position for the user. Furthermore, the projection can serve to seal the article within a chamber of a device to prevent undesirable air flow around the outer surface of the article.
  • the aerosol-forming article is preferably a heat-not-burn (HNB) consumable.
  • HNB heat-not-burn
  • the article comprises an aerosol-forming substrate that is capable of being heated to release at least one volatile compound that can form an aerosol.
  • the aerosol-forming substrate may be located at the upstream end of the article/consumable.
  • the terms“upstream” and“downstream” are intended to refer to the flow direction of the vapour/aerosol i.e. with the downstream end of the article/consumable being the mouth end or outlet where the aerosol exits the article/consumable for inhalation by the user.
  • the upstream end of the article/consumable is the opposing end to the downstream end.
  • Reference to the radial direction or lateral direction refers to a direction that is perpendicular to the axial flow direction.
  • the aerosol-forming substrate comprises at least one volatile compound that is intended to be vaporised/aerosolised and that may provide the user with a recreational and/or medicinal effect when inhaled.
  • Suitable chemical and/or physiologically active volatile compounds include the group consisting of: nicotine, cocaine, caffeine, opiates and opoids, cathine and cathinone, kavalactones, mysticin, beta-carboline alkaloids, salvinorin A together with any combinations, functional equivalents to, and/or synthetic alternatives of the foregoing.
  • the aerosol-forming substrate may comprise plant material.
  • the plant material may comprise least one plant material selected from the list including Amaranthus dubius, Arctostaphylos uva-ursi (Bearberry), Argemone mexicana, Arnica, Artemisia vulgaris, Yellow Tees, Galea zacatechichi, Canavalia maritima (Baybean), Cecropia mexicana (Guamura), Oestrum noctumum, Cynoglossum virginianum (wild comfrey), Cytisus scoparius, Damiana, Entada rheedii, Eschscholzia califomica (California Poppy), Fittonia albivenis, Hippobroma longi flora, Humulus japonica (Japanese Hops), Humulus lupulus (Hops), Lactuca virosa (Lettuce Opium), Laggera alata, Leonotis leonurus, Leonurus cardiaca (
  • the plant material is tobacco.
  • Any type of tobacco may be used. This includes, but is not limited to, flue-cured tobacco, burley tobacco, Maryland Tobacco, dark-air cured tobacco, oriental tobacco, dark-fired tobacco, perique tobacco and rustica tobacco. This also includes blends of the above mentioned tobaccos.
  • any suitable parts of the tobacco plant may be used. This includes leaves, stems, roots, bark, seeds and flowers.
  • the tobacco may comprise one or more of leaf tobacco, stem tobacco, tobacco powder, tobacco dust, tobacco derivatives, expanded tobacco, homogenised tobacco, shredded tobacco, extruded tobacco, cut rag tobacco and/or reconstituted tobacco (e.g. slurry recon or paper recon).
  • the aerosol-forming substrate may comprise a gathered sheet of homogenised (e.g. paper/slurry recon) tobacco or gathered shreds/strips formed from such a sheet.
  • homogenised e.g. paper/slurry recon
  • the sheet used to form the aerosol-forming substrate has a grammage greater than or equal to 100 g/m 2 , e.g. greater than or equal to 1 10 g/m 2 such as greater than or equal to 120 g/m 2 .
  • the sheet may have a grammage of less than or equal to 300 g/m 2 e.g. less than or equal to 250 g/m 2 or less than or equal to 200 g/m 2 .
  • the sheet may have a grammage of between 120 and 190 g/m 2 .
  • the aerosol-forming substrate may comprise at least 50 wt% plant material, e.g. at least 60 wt% plant material e.g. around 65 wt% plant material.
  • the aerosol-forming substrate may comprise 80 wt% or less plant material e.g. 75 or 70 wt% or less plant material.
  • the aerosol-forming substrate may comprise from 50 to 80 wt% plant material, for example from 50 to 75 wt%, from 55 to 80 wt%, from 55 to 75 wt%, from 50 to 70 wt%, from 55 to 70 wt%, from 60 to 75 wt% or from 60 to 70 wt%.
  • the aerosol-forming substrate may comprise one or more additives selected from humectants, flavou rants, fillers, aqueous/ non-aq u eous solvents and binders.
  • Humectants are provided as vapour generators - the resulting vapour helps carry the volatile active compounds and increases visible vapour.
  • Suitable humectants include polyhydric alcohols (e.g. propylene glycol (PG), triethylene glycol, 1 ,2-butane diol and vegetable glycerine (VG)) and their esters (e.g. glycerol mono-, di- or tri-acetate). They may be present in the aerosol-forming substrate in an amount between 1 and 50 wt%.
  • the humectant content of the aerosol-forming substrate may have a lower limit of at least 1 % by weight of the plant material, such as at least 2 wt%, such as at least 5 wt%, such as at least 10 wt%, such as at least 20 wt%, such as at least 30 wt%, or such as least 40 wt%.
  • the humectant content of the aerosol-forming substrate may have an upper limit of at most 50 % by weight of the plant material, such as at most 40 wt%, such as at most 30 wt%, or such as at most 20 wt%.
  • the humectant content is 1 to 40 wt% of the aerosol-forming substrate, such as 1 to 20 wt%
  • Binders may comprise starches and/or cellulosic binders such as methyl cellulose, ethyl cellulose, hydroxy propyl cellulose, hydroxyethyl cellulose and methyl cellulose, gums such as xanthan, guar, arabic and/or locust bean gum, organic acids and their salts such as alginic acid/ sodium alginate, agar and pectins.
  • the binder content is 5 to 10 wt% of the aerosol-forming substrate e.g. around 6 to 8 wt%.
  • Fillers are known in the art and may act to strengthen the aerosol-forming substrate.
  • Fillers may comprise fibrous (non-tobacco) fillers such as cellulose fibres, lignocellulose fibres (e.g. wood fibres), jute fibres and combinations thereof.
  • the filler content is 5 to 10 wt% of the aerosol-forming substrate e.g. around 6 to 9 wt%.
  • the aerosol-forming substrate may comprise an aqueous and/or non-aqueous solvent.
  • the aerosol forming substrate has a water content of between 5 and 10 wt% e.g. between 6-9 wt% such as between 7-9 wt%.
  • the flavourant may be provided in solid or liquid form. It may include menthol, liquorice, chocolate, fruit flavour (including e.g. citrus, cherry etc.), vanilla, spice (e.g. ginger, cinnamon) and tobacco flavour.
  • the flavourant may be evenly dispersed throughout the aerosol-forming substrate or may be provided in isolated locations and/or varying concentrations throughout the aerosol-forming substrate.
  • the aerosol-forming substrate may be formed in a substantially cylindrical shape such that the article/consumable resembles a conventional cigarette. It may have a diameter of between 5 and 10 mm e.g. between 6 and 9 mm or 6 and 8 mm e.g. around 7 mm. It may have an axial length of between 10 and 15 mm e.g. between 1 1 and 14 mm such as around 12 or 13 mm.
  • the at least one projection is a circumferentially-extending projection around the cylindrical outer surface of the article. In some embodiments, the at least one projection is an annular projection (e.g. a collar) circumscribing the outer surface.
  • the article may be at least partly circumscribed by a wrapping layer e.g. a paper wrapping layer.
  • the wrapping layer may overlie an inner foil layer or may comprise a paper/foil laminate (with the foil innermost).
  • the at least one projection is provided on the wrapping layer.
  • the at least one projection is an integral part of the wrapping layer e.g. the wrapping layer may be embossed or folded (transversely) to provide the at least one projection.
  • the at least one projection may alternatively be provided by an insert (e.g. an annular insert) provided under the wrapping layer which forces a portion of the wrapping layer radially outwards.
  • the at least one projection is closer to the downstream axial end of the article than the upstream axial end. In this way, a greater extent of insertion of the consumable is achieved before the raised feature comes into contact with the heating device to prevent further insertion.
  • the article/consumable may comprise at least one filter element. There may be a terminal filter element at the downstream/mouth end of the article/consumable. There may be an upstream filter element (upstream of the downstream axial end). The upstream and terminal filter elements may be axially adjacent or may be axially spaced.
  • the or at least one of the filter element(s) may be comprised of cellulose acetate or polypropylene tow.
  • the or at least one of the filter element(s) may be comprised of activated charcoal.
  • the or at least one of the filter element(s) may be comprised of paper.
  • the or at least one of the filter element(s) may be comprised of extruded plant material.
  • the or each filter element may be circumscribed with a plug wrap e.g. a paper plug wrap.
  • the or each filter element may have a substantially cylindrical shape with a diameter substantially matching the diameter of the aerosol-forming substrate (with or without its associated wrapping layer).
  • the axial length of the or each filter element may be less than 20mm, e.g. between 8 and 15mm, for example between 9 and 13 mm e.g. between 10 and 12mm.
  • the or at least one of the filter element(s) may be a solid filter element.
  • the or at least one of the filter element(s) may be a hollow bore filter element.
  • the or each hollow bore filter element may have a bore diameter of between 1 and 5 mm, e.g. between 2 and 4 mm or between 2 and 3 mm.
  • the upstream filter element may be at least partly (e.g. entirely) circumscribed by the (paper) wrapping layer.
  • the terminal filter element (at the downstream end of the article/consumable) may be joined to the upstream elements forming the article/consumable by a circumscribing tipping layer e.g. a tipping paper layer.
  • the tipping paper may have an axial length longer than the axial length of the terminal filter element such that the tipping paper completely circumscribes the terminal filter element plus the wrapping layer surrounding any adjacent upstream element.
  • the at least one projection is provided on the tipping paper.
  • the at least one projection is an integral part of the tipping paper e.g. the tipping paper may be embossed or folded (transversely) to provide the at least one radially-extending projection.
  • the at least one projection may alternatively be provided by an insert (e.g. an annular insert) provided under the tipping layer which forces a portion of the tipping paper radially outwards.
  • the or at least one of the filter elements e.g. the terminal filter element may include a capsule e.g. a crushable capsule (crush-ball) containing a liquid flavourant e.g. any of the flavourants listed above.
  • the capsule can be crushed by the user during smoking of the article/consumable to release the flavourant.
  • the capsule may be located at the axial centre of the terminal filter element.
  • the article/consumable may comprise an aerosol-cooling element which is adapted to cool the aerosol generated from the aerosol-forming substrate (by heat exchange) before being inhaled by the user.
  • the aerosol-cooling element will be downstream from the aerosol-forming substrate. For example, it may be between the aerosol-forming substrate and the upstream filter element and/or between the two filter elements.
  • the aerosol cooling element may be at least partly (e.g. completely) circumscribed by the (paper) wrapping layer.
  • the aerosol-cooling element may be formed of a plastics material selected from the group consisting of polylactic acid (PLA), polyvinyl chloride (PVC), polyethylene (PE) and polyethylene terephthalate (PET).
  • the aerosol-cooling element may be formed of a crimped/gathered sheet of material to form a structure having a high surface area with a plurality of longitudinal channels to maximise heat exchange and cooling of the aerosol.
  • the article/consumable may comprise a spacer element that defines a space or cavity or chamber between the aerosol-forming substrate and the downstream end of the article/consumable. For example, it may be provided between the aerosol-forming substrate and the upstream filter element and/or between the two filter elements.
  • the spacer acts to allow both cooling and mixing of the aerosol.
  • the spacer element may comprise a tubular element e.g. cardboard tube.
  • the spacer element may be at least partly (e.g. entirely) circumscribed by the (paper) wrapping layer.
  • the consumable comprises one or more ventilation holes in the wrapping layer surrounding the spacer element.
  • additional ventilation is provided which may enhance the user experience.
  • air will pass not only into the distal end of the article/consumable through the aerosol-forming substrate, but also through the one or more ventilation holes.
  • This may provide inter alia an enhanced cooling effect on the vapour to facilitate aerosol formation, improved homogeneous mixing of the smoke/aerosol constituents and a more desirable resistance to draw (RTD).
  • the number and size of the ventilation holes can be selected to provide a desired RTD for the article/consumable.
  • the one or more ventilation holes are located between the at least one projection and the upstream axial end of the article/consumable.
  • the spacer element may have an external diameter of between 5 and 10 mm e.g. between 6 and 9 mm or 6 and 8 mm e.g. around 7 mm. It may have an axial length of between 10 and 15 mm e.g. between 12 and 14 mm or 13 and 14mm e.g. around 14 mm.
  • a smoking substitute system comprising an aerosol-forming article according to the first aspect and a device comprising a heating element.
  • the device may be a HNB device i.e. a device adapted to heat but not combust the aerosol-forming substrate.
  • the device may comprise a main body for housing the heating element.
  • the heating element may comprise an elongated e.g. rod, tube-shaped or blade heating element.
  • the heating element may project into or surround a cavity within the main body for receiving the article/consumable described above.
  • the heating device may include an annular recess proximal an opening of the cavity for engagement of the at least one projection on the article/consumable.
  • the projection will engage within the recess, i.e. the projection/collar will“mate” with the recess.
  • This provides the user with haptic feedback that the article/consumable is correctly inserted into the device.
  • the engagement increases the resistance to movement of the article/consumable in an axial direction, both further into and back out of the cavity of the device. This provides improved control over the position of the article/consumable within the device to ensure optimal heating during use, and also prevents inadvertent removal or loss of the article/consumable from the device.
  • the device e.g. the main body
  • an electrical power supply e.g. a (rechargeable) battery for powering the heating element.
  • It may further comprise a control unit to control the supply of power to the heating element.
  • a smoking substitute system comprising:
  • the method comprises inserting the article/consumable into a cavity within the main body and penetrating the article/consumable with the heating element upon insertion of the article/consumable.
  • the heating element may penetrate the aerosol-forming substrate in the article/consumable.
  • the method comprises inserting the article/consumable such that the at least one projection engages with the recess proximal the opening of the cavity in the device.
  • Figure 1 shows a cross-sectional view of a first embodiment of an HNB consumable
  • Figure 2 shows a cross-sectional view of a second embodiment of an HNB consumable
  • Figure 3 shows a cross-sectional view of a third embodiment of an HNB consumable
  • Figure 4 shows a cross-sectional view of a fourth embodiment of an HNB consumable
  • Figure 5 shows a cross-sectional view of a HNB device adapted to receive a consumable according to the invention
  • Figure 6 shows a cross-sectional view of the first embodiment within a device forming an HNB system
  • Figure 7 shows a cross-sectional view of a fifth embodiment of an HNB consumable, inserted into a HNB device forming an HNB system.
  • the HNB consumable 1 comprises an aerosol-forming substrate 2 at the upstream end of the consumable 1.
  • the aerosol-forming substrate comprises reconstituted tobacco which includes nicotine as a volatile compound.
  • the aerosol-forming substrate 2 comprises 65 wt% tobacco which is provided in the form of gathered shreds produced from a sheet of slurry/paper recon tobacco.
  • the tobacco is dosed with 20wt% of a humectant such as propylene glycol (PG) or vegetable glycerine (VG) and has a moisture content of between 7-9 wt%.
  • a humectant such as propylene glycol (PG) or vegetable glycerine (VG) and has a moisture content of between 7-9 wt%.
  • the aerosol-forming substrate further comprises cellulose pulp filler and guar gum binder.
  • the aerosol-forming substrate 2 is formed in a substantially cylindrical shape such that the consumable resembles a conventional cigarette. It has diameter of around 7 mm and an axial length of around 12 mm.
  • the aerosol-forming substrate 2 is circumscribed by a paper wrapping layer 3.
  • the paper wrapping layer 3 includes a radially- and circumferentially-extending projection which is an annular collar 3a.
  • the external raised feature 3a is an integral part of the paper wrapping layer 3, i.e. the paper wrapping layer 3 is embossed to provide an increased thickness at a specific location thereby providing the collar 3a.
  • the consumable 1 comprises an upstream filter element 4 and a downstream (terminal) filter element 5.
  • Both filter elements 4, 5 are formed of cellulose acetate tow and wrapped with a respective paper plug layer (not shown).
  • Both filter elements have a substantially cylindrical shape.
  • the diameter of the upstream filter 4 matches the diameter of the aerosol-forming substrate 2.
  • the diameter of the terminal filter element 5 is slightly larger and matches the combined diameter of the aerosol-forming substrate 2 and the wrapping layer 3.
  • the upstream filter element is slightly shorter in axial length than the terminal filter element at an axial length of 10 mm compared to 12 mm for the terminal filter element.
  • the cardboard tube spacer is longer than each of the two filter elements having an axial length of around 14mm.
  • Each filter element 4, 5 is a hollow bore filter element with a hollow, longitudinally extending bore.
  • the diameter of the bore in the upstream filter is slightly larger than the diameter of the bore in the terminal filter having a diameter of 3mm compared to 2 mm for the terminal filter element.
  • the cardboard tube spacer 6 and the upstream filter element 4 are circumscribed by the wrapping layer 3.
  • the terminal filter element 5 is joined to the upstream elements forming the consumable by a circumscribing paper tipping layer 7.
  • the tipping layer 7 encircles the terminal filter element 5 and has an axial length of around 20mm such that it overlays a portion of the cardboard tube spacer 6.
  • Figure 2 shows another consumable 1’ similar to the embodiment of Figure 1 , except that an external raised feature 7a is present on the paper tipping layer 7, rather than the paper wrapping layer 3.
  • FIG 3 shows a third embodiment of a consumable 1” which is the same as that shown in Figure 2 except that the terminal filter element 5 is a solid filter element and comprises a crushable capsule 8 (crush-ball) having a shell wall containing a liquid menthol or cherry or vanilla flavourant.
  • the capsule 8 is spherical and has a diameter of 3.5mm. It is positioned within the axial centre of the terminal filter element 5.
  • Figure 4 shows a fourth embodiment of a consumable T” which is the same as the second embodiment except that the wrapping layer 3 does not completely circumscribe the cardboard tube spacer 6 such that there is an annular gap 9 between the tipping layer 7 and the cardboard tube spacer 6 downstream of the end of the wrapping layer 3.
  • FIG. 5 shows a simplified cross section of an HNB device 10 comprising a main body 12 and an internal annular housing 13.
  • the housing 13 includes an annular recess 13a which extends around the entire inner circumference of an inner surface of the housing 13.
  • the HNB device also includes a rod-shaped heating element 20 which projects into a cavity 1 1 within the housing 13 of the device.
  • Figure 6 shows the second embodiment of the HNB consumable T inserted into the HNB device 10.
  • the annular collar 3a on the outer surface of the consumable 1 is engaged with the annular recess 13a within the internal housing 13 of the HNB device 10. Movement of the consumable T within the device 10 is thereby limited, since further insertion or inadvertent removal is made more difficult. After use, the consumable may still be removed for disposal by applying enough force to the consumable to overcome the engagement between the raised feature 3a and the recess 13a.
  • the consumable ⁇ is inserted into the cavity 1 1 of the main body 12 of the device 10 such that the heating rod 20 penetrates the aerosol-forming substrate 2.
  • Heating of the reconstituted tobacco in the aerosolforming substrate 2 is effected by powering the heating element (e.g. with a rechargeable battery (not shown)).
  • the heating element e.g. with a rechargeable battery (not shown)
  • moisture and volatile compound e.g. nicotine
  • the humectant are released as a vapour and entrained within an airflow generated by inhalation by the user at the terminal filter element 5.
  • the vapour cools within the upstream filter element 4 and the cardboard tube spacer 6, it condenses to form an aerosol containing the volatile compounds for inhalation by the user.
  • FIG 7 shows an alternative embodiment of a HNB consumable 100 inserted into the HNB device 10.
  • the consumable 100 is identical to consumable T shown in Figures 2 and 6, except that the consumable includes ventilation apertures 15a, 15b through the paper wrapping layer 3 and the cardboard tube spacer 6, such that the internal cavity/chamber of the consumable is in fluid communication with the outside of the consumable through the apertures.
  • Two apertures are visible in the cross-section of Figure 7, which are part of an annular array of ventilation apertures around the entire circumference of the consumable.
  • a first stream of air passes into the upstream axial end of the consumable, through the aerosol-forming substrate 2 where it collects volatile substances (e.g. nicotine and humectant) and through the continuous channel formed by the hollow bore filter 4, cardboard tube spacer 6 and terminal hollow bore filter element 5.
  • a second stream of air passes between the internal surface of HNB device housing 13 and the external surface of the consumable, through the ventilation apertures 15a, 15b and other apertures in the annular array (not shown), into the chamber within the consumable defined by the cardboard tube spacer 6. The second stream combines with the first stream within this chamber before passing through the terminal hollow bore filter element 5 and into the mouth of the user.
  • the ventilation apertures 15a, 15b therefore provide additional ventilation which helps to cool the vapour to form the aerosol, encourages more homogeneous mixing of the smoke ingredients and may be used to provide a more desirable resistance to draw for the user. More controlled ventilation through the apertures 15a, 15b is achieved by providing a relatively air-tight seal between the annular collar 7a and the annular recess 13a.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

La présente invention concerne un article de formation d'aérosol ayant une surface externe comprenant au moins une saillie s'étendant latéralement ou radialement. La saillie est conçue pour venir en prise avec un dispositif de chauffage, par exemple à l'intérieur d'un évidement annulaire dans le dispositif de chauffage.
EP19798008.9A 2018-10-29 2019-10-25 Consommable de substitution pour fumeur Pending EP3873265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1817535.6A GB201817535D0 (en) 2018-10-29 2018-10-29 Smoking substitute consumable
PCT/EP2019/079272 WO2020089114A1 (fr) 2018-10-29 2019-10-25 Consommable de substitution pour fumeur

Publications (1)

Publication Number Publication Date
EP3873265A1 true EP3873265A1 (fr) 2021-09-08

Family

ID=64560376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19798008.9A Pending EP3873265A1 (fr) 2018-10-29 2019-10-25 Consommable de substitution pour fumeur

Country Status (3)

Country Link
EP (1) EP3873265A1 (fr)
GB (1) GB201817535D0 (fr)
WO (1) WO2020089114A1 (fr)

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Publication number Priority date Publication date Assignee Title
GB202105210D0 (en) * 2021-04-12 2021-05-26 Nicoventures Trading Ltd Article for use in an aerosol provision system
WO2023117942A1 (fr) * 2021-12-22 2023-06-29 Nicoventures Trading Limited Dispositif de fourniture d'aérosol

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