EP3782485A1 - Consommable de substitution du tabac - Google Patents

Consommable de substitution du tabac Download PDF

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Publication number
EP3782485A1
EP3782485A1 EP19193285.4A EP19193285A EP3782485A1 EP 3782485 A1 EP3782485 A1 EP 3782485A1 EP 19193285 A EP19193285 A EP 19193285A EP 3782485 A1 EP3782485 A1 EP 3782485A1
Authority
EP
European Patent Office
Prior art keywords
axial length
face
transverse end
article
consumable
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.)
Ceased
Application number
EP19193285.4A
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German (de)
English (en)
Inventor
designation of the inventor has not yet been filed The
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.)
Nerudia 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
Priority to EP19193285.4A priority Critical patent/EP3782485A1/fr
Priority to PCT/EP2020/073564 priority patent/WO2021037762A1/fr
Priority to EP20764592.0A priority patent/EP4017294A1/fr
Publication of EP3782485A1 publication Critical patent/EP3782485A1/fr
Priority to US17/677,495 priority patent/US20220175023A1/en
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices

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 that has an aspect ratio resulting in a reduced axial length relative to a dimension (e.g. diameter, minimum dimension perpendicular to the axial length or cross-sectional area_ of a transverse end face.
  • a dimension e.g. diameter, minimum dimension perpendicular to the axial length or cross-sectional area_ of a transverse end face.
  • an aerosol-forming article e.g. a smoking substitute article such as an HNB consumable
  • an aerosol-forming substrate comprising an aerosol-forming substrate, the article/consumable having an axial length extending perpendicularly to a transverse end face, wherein the aspect ratio of the axial length to a diameter of the transverse end face is between 6:1 and 1:1.
  • an aerosol-forming article e.g. a smoking substitute article such as an HNB consumable
  • an aerosol-forming substrate comprising an aerosol-forming substrate, the article/consumable having an axial length extending perpendicularly to a non-rectangular transverse end face, wherein the aspect ratio of the axial length to the square root of the area of the transverse end face is between 7:1 and 1.1:1.
  • an aerosol-forming article e.g. a smoking substitute article such as an HNB consumable
  • an aerosol-forming substrate comprising an aerosol-forming substrate, the article/consumable having an axial length extending perpendicularly to a non-rectangular transverse end face, wherein the aspect ratio of the axial length to the minimum dimension through the axial centre of the transverse end face perpendicular to the axial length is between 6:1 and 1:1.
  • Known aerosol-forming articles e.g. HNB consumables typically have a length greater than 45mm (e.g. up to 84mm, or 100mm or even 120mm) and a diameter of between 5 and 8mm.
  • these known articles/consumables typically have an aspect ratio of length to diameter significantly in excess of 6:1 (and up to nearly 17:1).
  • these articles/consumables can be considered to be long and thin thus resembling conventional cigarettes. This has been previously considered desirable to meet user expectations and also to allow use of existing conventional cigarette manufacturing machinery.
  • the relative dimensions of the articles/consumables described herein means that the ratio of the axially-extending surface area of the article/consumable to the volume of the consumable/article is reduced meaning that a reduced area of wrapping paper is required to circumscribe the axially-extending surface thus resulting in reduced material/manufacturing costs.
  • the transverse end face is intended to describe a two-dimensional face extending in a plane perpendicular to the axial length. There will be two opposing transverse end faces at the opposing axial ends of the article/consumable, with the axial length extending therebetween.
  • the transverse end face is substantially circular or oval.
  • he transverse end face may have a polygonal shape such as a triangle, square, pentagon, hexagon, octagon etc. shape.
  • at least a portion of the perimeter of the transverse end face may be curved.
  • the transverse end face may be substantially circular or oval (i.e. the perimeter of the transverse end face may be entirely curved so as to form a circle/oval).
  • the transverse end face may comprise two convex portions which meet at opposing axially extending ridges such that the transverse end face is mandorla-/eye-/almond-shaped.
  • a portion (e.g. two opposing portions) of the perimeter of the transverse end face may be curved or rounded e.g. the perimeter of the transverse end face may comprise at least one (e.g. two opposing) convex or concave rounded portion (s).
  • the perimeter of the transverse end face comprises at least one linear portion. It may, for example, comprises two opposing e.g. two opposing parallel linear portion. The linear portions may be spaced by the opposing curved/rounded portions.
  • the transverse end face may have a substantially obround shape or a truncated oval shape. Or it may have a shape where the convex portions of the obround shape are replaced by convex portions.
  • the perimeter of the transverse end face may comprise at least one (e.g. two opposing) convex portion(s) which take(s) the form of a curly bracket or brace i.e. " ⁇ "or" ⁇ ".
  • the article/consumable may have a constant transverse cross-sectional area (matching the area of the transverse end face) along the axial length.
  • the article/consumable may have a constant transverse cross-sectional shape (matching the shape of the transverse end face) along the axial length.
  • the article/consumable may have a transverse cross-sectional area that varies along the axial length e.g. decreases along the axial length.
  • the article/consumable may have a transverse cross-sectional shape that varies along the axial length.
  • the aspect ratio of the axial length to a diameter of the transverse end face is between 6:1 and 1:1, preferably between 5:1 and 1:1 or 4:1 and 1:1 or 3:1 and 1:1 such as between 2.5:1 and 1.1 e.g. between 2:1 and 1:1.
  • the aspect ratio of the axial length to the square root of the area of the transverse end face is between 7:1 and 1.1:1, preferably between 5.6:1 and 1.1:1 or 4.5:1 and 1.1:1 or 3.4:1 and 1.1:1 such as between 2.8:1 and 1.1:1 e.g. between 2.3:1 and 1.1:1.
  • the aspect ratio of the axial length to the minimum dimension through the axial centre of the transverse end face perpendicular to the axial length is between 6:1 and 1:1, preferably between 5:1 and 1:1 such as between 2.5:1 and 1.1 e.g. between 2:1 and 1:1.
  • the axial length of the consumable is less than 45mm, e.g. less than 40mm or 35mm such as less than 30mm or 25mm. It may be less than 20mm or 15mm. The axial length may be greater than 5mm or 10mm.
  • the diameter or minimum distance through the axial centre of the transverse end face perpendicular to the axial length may be greater than 7mm e.g. between 7 and 10mm, such as between 7 and 9mm or 7 and 8mm.
  • the area of the transverse end face is preferably greater than 38mm 2 such as between 38 and 78.5mm 2 , such as between 38 and 63.6mm 2 or 38 and 50.3mm 2 .
  • the aerosol-forming article is preferably a heat-not-burn (HNB) consumable.
  • HNB heat-not-burn
  • the article/consumable comprises an aerosol-forming substrate which 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.
  • 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 may have an axial length of less than 45mm, e.g. less than 40mm or 35mm such as less than 30mm or 25mm. It may be less than 20mm or 15mm. The axial length may be greater than 10mm. For example, it may be around 12mm.
  • 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, THC, caffeine, cannaboids, 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 , Amica , Artemisia vulgaris , Yellow Tees, Galea zacatechichi , Canavalia maritima (Baybean), Cannabis, Cecropia mexicana (Guamura), Cestrum noctumum , Cynoglossum virginianum (wild comfrey), Cytisus scoparius , Damiana , Entada rheedii , Eschscholzia califomica (California Poppy), Fittonia albivenis , Hippobroma longiflora , Humulus japonica (Japanese Hops), Humulus lupulus (Hops), Lactuca virosa (Lettuce Opium
  • 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 one or more additives selected from humectants, flavourants, fillers 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 %
  • Suitable binders are known in the art and 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 comprise fibrous fillers such as cellulose fibres
  • the filler content is 5 to 10 wt% of the aerosol-forming substrate e.g. around 6 to 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 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 article/consumable may comprise at least one further element which may be downstream of the substrate.
  • the further element may be a porous element.
  • the porous element may have a porosity such that it at least partly blocks the passage (filters out) at least one of the component of the aerosol/vapour.
  • the at least one porous element may be a filter element.
  • the or each filter element may be comprised of cellulose acetate or polypropylene tow, activated charcoal or paper, for example.
  • the or each filter element may be circumscribed with a plug wrap e.g. a paper plug wrap.
  • the porous element may have a density/porosity/permeability such that it is permeable to (allows passage of) all components of the aerosol/vapour.
  • the further element may be a porous or solid element having a hollow bore for the passage of the aerosol/vapour.
  • the further element 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.
  • the spacer acts to allow both cooling and mixing of the aerosol.
  • the spacer element may comprise a cardboard or plastic tube.
  • the spacer element may be at least partly (e.g. entirely) circumscribed by the (paper) wrapping layer.
  • the further element 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 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 further element(s) may have a transverse cross-section matching the shape of the transverse end face.
  • the or each further element may have a diameter/minimum dimension/cross-sectional area substantially matching that of the aerosol-forming substrate (with or without its associated wrapping layer).
  • terminal element at the downstream/mouth end of the article/consumable which may be as described above e.g. there may be a terminal filter/porous/hollow bore/spacer/cooling element.
  • the axial length of the or each further element may be less than 12mm, e.g. less than 15mm or less than 10mm such as between 2mm and 10mm, for example between 3 and 7 mm e.g. between 3 and 5mm or 3 and 4mm.
  • the or at least one of the further 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.
  • 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.
  • 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 is dosed with 20wt% of a humectant such as propylene glycol (PG) or vegetable glycerine (VG).
  • a humectant such as propylene glycol (PG) or vegetable glycerine (VG).
  • the aerosol-forming substrate 2 is formed in a substantially cylindrical shape such that the consumable resembles a conventional cigarette. It has a circular transverse end face 5 having diameter of 7.1mm and an axial length of 12 mm.
  • the aerosol-forming substrate 2 is circumscribed by a paper wrapping layer 4.
  • the consumable 1 comprises an upstream spacer element 3 formed of a cardboard tube having an axial length of 4mm.
  • the overall length of the consumable is 16mm. This gives an aspect ratio of the length to diameter of 2.25:1 and an aspect ratio of length to the square root of the area of the transverse end face 5 of 2.0:1.
  • FIG 2 shows a second embodiment of a consumable 1' which is the same as that shown in Figure 1 except that there is a terminal filter element 6 having an axial length of 10mm.
  • the overall length of the consumable is 22mm. This gives an aspect ratio of the length to diameter of 3.1:1 and an aspect ratio of length to the square root of the area of the transverse end face 5 of 3.5:1.
  • FIG 3 shows a third embodiment of a consumable 1" which is the same as that shown in Figure 2 except that the filter element 6 comprises a crushable capsule 7 (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 portion 6.
  • Figure 4 shows the first embodiment inserted into an HNB device 10 comprising a rod-shaped heating element 22.
  • the heating element 22 projects into a cavity 11 within the main body 12 of the device.
  • the consumable 1 is inserted into the cavity 11 of the main body 12 of the device 10 such that the heating rod penetrates the aerosol-forming substrate 2.
  • the reduced axial length compared to the dimensions of the transverse end face 5 (into which the heating element 22 is inserted) helps reduce bending and breakage of the consumable 1 as it is inserted into the device 10.
  • Heating of the reconstituted tobacco in the aerosol-forming substrate 2 is effected by powering the heating element 22 (e.g. with a rechargeable battery (not shown)). As the tobacco is heated, moisture and volatile compound (e.g. nicotine) within the tobacco and the humectant are released as a vapour and entrained within an airflow generated by inhalation by the user at the terminal filter portion 5.
  • the heating element 22 e.g. with a rechargeable battery (not shown)
  • the vapour cools within the upstream filter element 4 and the cardboard spacer tube 6, it condenses to form an aerosol containing the volatile compounds for inhalation by the user.
  • Figures 5a-i show alternative shapes for the transverse end face such as an oval shape (5d), a truncated oval shape (5e), an obround shape (5a) a triangle shape (5h) or a hexagon shape (5i).

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP19193285.4A 2019-08-23 2019-08-23 Consommable de substitution du tabac Ceased EP3782485A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19193285.4A EP3782485A1 (fr) 2019-08-23 2019-08-23 Consommable de substitution du tabac
PCT/EP2020/073564 WO2021037762A1 (fr) 2019-08-23 2020-08-21 Consommable de substitution au tabac
EP20764592.0A EP4017294A1 (fr) 2019-08-23 2020-08-21 Consommable de substitution au tabac
US17/677,495 US20220175023A1 (en) 2019-08-23 2022-02-22 Smoking substitute consumable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19193285.4A EP3782485A1 (fr) 2019-08-23 2019-08-23 Consommable de substitution du tabac

Publications (1)

Publication Number Publication Date
EP3782485A1 true EP3782485A1 (fr) 2021-02-24

Family

ID=67742212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19193285.4A Ceased EP3782485A1 (fr) 2019-08-23 2019-08-23 Consommable de substitution du tabac

Country Status (1)

Country Link
EP (1) EP3782485A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180027884A1 (en) * 2016-07-29 2018-02-01 Altria Client Services Llc Aerosol-generating system including a heated gel container
US20180360123A1 (en) * 2015-12-21 2018-12-20 Philip Morris Products S.A. Aerosol-generating system comprising variable air inlet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180360123A1 (en) * 2015-12-21 2018-12-20 Philip Morris Products S.A. Aerosol-generating system comprising variable air inlet
US20180027884A1 (en) * 2016-07-29 2018-02-01 Altria Client Services Llc Aerosol-generating system including a heated gel container

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