WO2020089090A1 - Consommable de substitution à l'acte de fumer - Google Patents

Consommable de substitution à l'acte de fumer Download PDF

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Publication number
WO2020089090A1
WO2020089090A1 PCT/EP2019/079208 EP2019079208W WO2020089090A1 WO 2020089090 A1 WO2020089090 A1 WO 2020089090A1 EP 2019079208 W EP2019079208 W EP 2019079208W WO 2020089090 A1 WO2020089090 A1 WO 2020089090A1
Authority
WO
WIPO (PCT)
Prior art keywords
article
aerosol
biodegradable
tobacco
consumable
Prior art date
Application number
PCT/EP2019/079208
Other languages
English (en)
Inventor
Chris Lord
Kate FERRIE
Edward Ross SHENTON
Samantha MURRAY
Kim Christian JEPSEN
Original Assignee
Nerudia Limited
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 Limited filed Critical Nerudia Limited
Priority to EP19798194.7A priority Critical patent/EP3873267A1/fr
Publication of WO2020089090A1 publication Critical patent/WO2020089090A1/fr
Priority to US17/243,091 priority patent/US20210315264A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—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
    • A24D1/18—Selection of materials, other than tobacco, suitable for smoking

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 is disposable in a more environmentally-friendly manner.
  • an aerosol-forming article e.g. a smoking substitute article such as an HNB consumable
  • a smoking substitute article such as an HNB consumable
  • aerosol-forming articles such as existing HNB consumables, contain at least one non-biodegradable or non-read ily-biodegradable element and are therefore difficult to dispose of in an environmentally-friendly manner.
  • aerosol-forming articles may comprise non- biodegradable plastics materials, non-biodegradable inks, non-biodegradable paper (due to the presence of non-biodegradable constituents within the paper such as inorganic fillers), non-biodegradable adhesives (due to the presence of non-biodegradable polymers within the adhesives) and other non-biodegradable components which necessitate disposal by traditional, non-environmentally friendly means such as landfill.
  • biodegradable takes its usual meaning, indicating a material which is capable of being degraded or decomposed by bacteria, fungi or other living organisms.
  • Standard cellulose acetate tow filters used in aerosol-forming articles such as cigarettes and HNB consumables have a degree of acetyl substitution (DS) of 2.5 which provides good solubility in common solvents, good molecular weight and good melt properties.
  • DS acetyl substitution
  • cellulose acetate filter tow is not readily biodegradable, requiring lengthy time periods to achieve even partial disintegration under natural composting conditions.
  • cellulose acetate is not considered to be“readily biodegradable” in the context of the present invention.
  • the term“readily biodegradable” indicates a material which is at least 30 wt% degraded after 46 days as determined according to the ISO 1 1734 standard of 1995 (anaerobic biodegradability in municipal wastewater treatment plant sludge at 35 °C), for example at least 35 wt% degraded, at least 40 wt% degraded, at least 45 wt% degraded or at least 50 wt% degraded.
  • Cellulose acetate fibers of the type used in cellulose acetate tow filters are 27 wt% degraded after 46 days as determined according to the ISO 1 1734 standard (Gartiser et al.,“Assessment of Several Test Methods for the Determination of the Anaerobic Biodegradability of Polymers”, J. Polymer Environ., Vol. 6, No. 3, 1998, pp. 159-173).
  • the aerosol-forming article is preferably a heat-not-burn (HNB) consumable.
  • the aerosol-forming article preferably comprises an aerosol-forming substrate.
  • the aerosol-forming substrate 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.
  • 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, Leono
  • 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
  • the aerosol-forming substrate may comprise one or more additives selected from humectants, flavourants, biodegradable fillers, aqueous/non-aqueous solvents and biodegradable 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, hydroxypropyl 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%.
  • Suitable 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, lig nocellulose 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 10mm 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 aerosol-forming substrate may be circumscribed by a biodegradable (e.g. readily biodegradable) wrapping layer.
  • the wrapping layer comprises one or more materials selected from biodegradable paper/card board, plant material (e.g. tobacco), biodegradable polymer/plastics material (e.g. polylactic acid), cellulosic/lignocellulosic material (e.g. wood, bamboo, jute). Any inks or adhesives used with the wrapping layer will be biodegradable.
  • plant material e.g. tobacco
  • biodegradable polymer/plastics material e.g. polylactic acid
  • cellulosic/lignocellulosic material e.g. wood, bamboo, jute.
  • Any inks or adhesives used with the wrapping layer will be biodegradable.
  • the wrapping layer does not comprise non-biodegradable inks, fillers or adhesives.
  • 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 from the terminal filter element.
  • the terminal filter element and upstream filter element may be axially adjacent or may be axially spaced.
  • the filter element(s) is/are biodegradable, preferably readily biodegradable.
  • the filter element(s) comprise(s) one or more materials selected from biodegradable paper/card board, plant material (e.g. tobacco such as extruded tobacco), biodegradable polymer/plastics material (e.g. polylactic acid) and cellulosic/lignocellulosic material (e.g. wood, bamboo, jute).
  • plant material e.g. tobacco such as extruded tobacco
  • biodegradable polymer/plastics material e.g. polylactic acid
  • cellulosic/lignocellulosic material e.g. wood, bamboo, jute.
  • the filter element(s) do not comprise cellulose acetate.
  • the or each filter element may be circumscribed with a plug wrap e.g. a biodegradable 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 20 mm, e.g. between 8 and 15 mm, for example between 9 and 13 mm e.g. between 10 and 12 mm.
  • 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 (biodegradable) 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 biodegradable 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 or at least one of the filter elements e.g. the terminal filter element may include a biodegradable 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 a biodegradable (e.g. readily biodegradable) aerosol-cooling element.
  • the aerosol-cooling element 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 two filter elements.
  • the aerosol cooling element may be at least partly (e.g. completely) circumscribed by the (paper) wrapping layer.
  • the biodegradable aerosol-cooling element comprises one or more materials selected from biodegradable paper/cardboard, plant material (e.g. tobacco, such as extruded tobacco), biodegradable polymer/plastics material (e.g. polylactic acid) and cellulosic/lignocellulosic material (e.g. wood, bamboo, jute).
  • plant material e.g. tobacco, such as extruded tobacco
  • biodegradable polymer/plastics material e.g. polylactic acid
  • cellulosic/lignocellulosic material e.g. wood, bamboo, jute.
  • the cooling element does not comprise cellulose acetate.
  • the aerosol-cooling element may be formed of a biodegradable plastics material such as polylactic acid (PLA).
  • the aerosol-cooling element may be formed of a crimped/gathered sheet of biodegradable 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 biodegradable (e.g. readily biodegradable) spacer element that defines a space or cavity or chamber between the aerosol-forming substrate and the downstream end of the article/consumable.
  • a biodegradable spacer element that defines a space or cavity or chamber between the aerosol-forming substrate and the downstream end of the article/consumable.
  • it may be 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 biodegradable spacer element comprises one or more materials selected from biodegradable paper/cardboard, plant material (e.g. tobacco, such as extruded tobacco), biodegradable polymer/plastics material (e.g. polylactic acid) and cellulosic/lignocellulosic material (e.g. wood, bamboo, jute).
  • plant material e.g. tobacco, such as extruded tobacco
  • biodegradable polymer/plastics material e.g. polylactic acid
  • cellulosic/lignocellulosic material e.g. wood, bamboo, jute.
  • the spacer element does not comprise cellulose acetate.
  • the spacer element may comprise a tubular element e.g. a biodegradable cardboard tube or an extruded tube of plant material e.g. tobacco.
  • the spacer element may be at least partly (e.g. entirely) circumscribed by the (paper) wrapping layer.
  • 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 14 mm e.g. around 14 mm.
  • the article/consumable does not include any components which comprise polymer materials selected from polyethylene, polypropylene, polyvinylchloride, polystyrene, polyether ether ketone (PEEK) or polytetrafluoroethylene.
  • polymer materials selected from polyethylene, polypropylene, polyvinylchloride, polystyrene, polyether ether ketone (PEEK) or polytetrafluoroethylene.
  • PEEK polyether ether ketone
  • the article/consumable comprises one or more filter elements (e.g. two filter elements), a spacer element, an aerosol-forming substrate, a wrapping layer and a tipping layer, each of which comprises one or more materials selected from biodegradable cardboard/paper, plant material (e.g. tobacco), biodegradable polymer/plastics material (e.g. polylactic acid), cellulosic/lignocellulosic material (e.g. wood, bamboo, jute). Any inks or adhesives used in the article/consumable are biodegradable.
  • plant material e.g. tobacco
  • biodegradable polymer/plastics material e.g. polylactic acid
  • cellulosic/lignocellulosic material e.g. wood, bamboo, jute.
  • Any inks or adhesives used in the article/consumable are biodegradable.
  • each component of the article/consumable is composed of materials which are at least 30 wt% degraded after 46 days as determined according to the ISO 1 1734 standard of 1995 (anaerobic biodegradability in municipal wastewater treatment plant sludge at 35 °C), for example at least 35 wt% degraded, at least 40 wt% degraded, at least 45 wt% degraded or at least 50 wt% degraded.
  • the entire article/consumable is completely disintegrated after a time period of 14 days or less under natural composting conditions, for example 13 days or less, 12 days or less, 1 1 days or less or 10 days or less.
  • the article/consumable does not contain any components which comprise cellulose acetate.
  • the article/consumable comprises a region of weakness between the aerosol-forming substrate and the downstream components i.e. there may be a region of weakness at the downstream axial end of the aerosol-forming substrate e.g. between the aerosol-forming substrate and the upstream filter element.
  • a region of weakness at the downstream axial end of the aerosol-forming substrate e.g. between the aerosol-forming substrate and the upstream filter element.
  • different sections of the article/consumable may be disposed of in different ways.
  • the user may wish to dispose of the aerosol-forming substrate into an ashtray while disposing of the downstream elements in an alternative manner, for example by composting. Separation of the consumable into multiple separate sections after use is much easier due to the provision of the region of weakness in a specific location.
  • the region of weakness comprises a discrete region of the wrapping layer which is of lower grammage than the remaining wrapping layer.
  • the region of weakness comprises an array of perforations in the wrapping layer. The array of perforations may extend around the entire circumference of the consumable. In some embodiments, the region of weakness comprises a linear circular array of perforations extending around the circumference of the consumable.
  • 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 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.
  • 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 cross-sectional view of the first embodiment within a 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 is fully biodegradable.
  • 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 of the wrapping layer 3 does not contain any inorganic filler materials and is biodegradable.
  • the paper wrapping layer may be a tobacco-based paper layer.
  • the consumable 1 comprises an upstream filter element 4 and a downstream (terminal) filter element 5.
  • Both filter elements 4, 5 are formed of biodegradable paper and wrapped with a respective biodegradable 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.
  • biodegradable cardboard tube spacer is longer than each of the two filter elements having an axial length of around 14 mm.
  • biodegradable spacer element 6 is made from an extruded tube of biodegradable polylactic acid (PLA).
  • 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 element 4 is slightly larger than the diameter of the bore in the terminal filter element 5 having a diameter of 3 mm compared to 2 mm for the terminal filter element 5.
  • 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 which is made from biodegradable paper.
  • the tipping layer 7 encircles the terminal filter element 5 and has an axial length of around 20 mm such that it overlays a portion of the cardboard tube spacer 6.
  • FIG 2 shows a second embodiment of a consumable T which is the same as that shown in Figure 1 except that the terminal filter element 5 is a solid filter element and comprises a crushable capsule 8 (crush- ball) having a shell wall made from biodegradable polymer material such as PLA and 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 3 shows a third embodiment of a consumable 1” which is the same as the first 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.
  • Figure 4 shows the first embodiment inserted into an HNB device 10 comprising a rod-shaped heating element 20.
  • the heating element 20 projects into a cavity 1 1 within the main body 12 of the device.
  • the consumable 1 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.
  • the user After use of the consumable, the user removes the consumable from the device 10 and may dispose of the consumable at a composting facility.

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

Abstract

La présente invention concerne un article de substitution à l'acte de fumer (par exemple un consommable de HNB) qui comprend uniquement des composants biodégradables. Il peut être constitué uniquement d'un ou de plusieurs matériaux choisis parmi le papier/carton biodégradable, la matière végétale ou la matière plastique biodégradable.
PCT/EP2019/079208 2018-10-29 2019-10-25 Consommable de substitution à l'acte de fumer WO2020089090A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19798194.7A EP3873267A1 (fr) 2018-10-29 2019-10-25 Consommable de substitution à l'acte de fumer
US17/243,091 US20210315264A1 (en) 2018-10-29 2021-04-28 Smoking substitute consumable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1817581.0A GB201817581D0 (en) 2018-10-29 2018-10-29 Smoking substitute consumable
GB1817581.0 2018-10-29

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/079227 Continuation WO2020089095A1 (fr) 2018-10-29 2019-10-25 Consommable à fumer de substitution

Related Child Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/079197 Continuation WO2020089085A1 (fr) 2018-10-29 2019-10-25 Consommable de substitution pour fumeur

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