EP3873271A1 - Produit consommable de substitution pour fumeur - Google Patents

Produit consommable de substitution pour fumeur

Info

Publication number
EP3873271A1
EP3873271A1 EP19797204.5A EP19797204A EP3873271A1 EP 3873271 A1 EP3873271 A1 EP 3873271A1 EP 19797204 A EP19797204 A EP 19797204A EP 3873271 A1 EP3873271 A1 EP 3873271A1
Authority
EP
European Patent Office
Prior art keywords
filter element
aerosol
article
tobacco
terminal filter
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
EP19797204.5A
Other languages
German (de)
English (en)
Inventor
Kate FERRIE
Edward Ross SHENTON
Christopher Lord
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 EP3873271A1 publication Critical patent/EP3873271A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • 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 having a filter element with an axial bore off-set from the axial centre of the filter element.
  • an aerosol-forming article e.g. a smoking substitute article such as an HNB consumable
  • a terminal filter element at a downstream axial end of the article/consumable wherein the terminal filter element comprises a hollow bore extending from an upstream axial end of the terminal filter element to a downstream axial end of the terminal filter element wherein the hollow bore is off-set from the axial centre of the terminal filter element.
  • the temperature of the vapour entering the user’s mouth will be reduced whilst the visible vapour (total particulate matter) will be maintained.
  • the vapour/aerosol travels through the article/consumable, upon reaching the terminal filter element, it will meet the axial upstream end of the terminal filter element and will be forced to take a convoluted path through the off-set axial bore. This convoluted path will help mix and cool the vapour/aerosol prior to inhalation.
  • the aerosol-forming article is preferably a heat-not-burn (HNB) consumable.
  • HNB heat-not-burn
  • the terminal filter element is provided at the downstream/mouth end of the article/consumable.
  • the off-set bore extends the entire length of the terminal filter element and terminates at the downstream/mouth end of the article/consumable.
  • the terminal filter element comprises only the single off-set bore and no other bores i.e. the terminal filter element is preferably solid other than for the single off-set bore.
  • axially offset means that the axial centre of the bore is not aligned with the axial centre of the filter element.
  • the axial centre of the filter element may, however, be within the off-set bore.
  • an upstream filter element provided upstream of the terminal filter element and downstream of the aerosol-forming substrate.
  • 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 upstream filter element may be a solid filter element or may be a hollow bore filter element comprising an axial bore.
  • the or each filter element is formed of a smoke-permeable material.
  • the terminal and/or upstream filter element(s) may be comprised of cellulose acetate or polypropylene tow.
  • the terminal and/or upstream filter element(s) may be comprised of activated charcoal.
  • the terminal and/or upstream filter element(s) may be comprised of paper.
  • the terminal and/or upstream filter element(s) may each be circumscribed with a respective plug wrap e.g. a paper plug wrap.
  • the porosity of the upstream filter element may be greater than the porosity of the terminal filter element.
  • 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 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, Canavaiia 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, Leon
  • 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 one or more additives selected from humectants, flavourants, fillers, aqueous/non-aqueous 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%.
  • 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 9mm or 6 and 8mm e.g. around 7 mm. It may have an axial length of between 10 and 15mm e.g. between 1 1 and 14mm such as around 12 or 13mm.
  • 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 upstream filter element may be at least partly (e.g. entirely) circumscribed by the (paper) wrapping layer.
  • the terminal and/or upstream filter element(s) may each 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 terminal and/or upstream filter element(s) may each have a bore diameter of between 1 and 5 mm, e.g. between 2 and 4 mm or between 2 and 3 mm.
  • the diameter of the axial bore in the upstream filter element may be greater than the diameter of the offset bore in the terminal filter element.
  • 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 upstream and terminal filter elements may be adjacent one another or may be spaced apart.
  • 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 upstream and terminal 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.
  • the spacer acts to allow both cooling and mixing of the aerosol.
  • the spacer element may comprise a cardboard tube.
  • the spacer element may be provided between the upstream and terminal filter elements.
  • 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 10mm e.g. between 6 and 9mm or 6 and 8mm e.g. around 7 mm. It may have an axial length of between 10 and 15mm e.g. between 12 and 14 mm or 13 and 14mm e.g. around 14mm.
  • 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 first embodiment of an HNB consumable
  • Figure 2 shows a second embodiment of an HNB consumable
  • Figure 3 shows 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 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 7mm and an axial length of around 12 mm.
  • the aerosol-forming substrate 2 is circumscribed by a paper wrapping layer 3.
  • 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 10mm compared to 12mm 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.
  • Upstream filter element 4 is a hollow bore filter element with a hollow, longitudinally-extending axial bore 14.
  • the terminal filter element 5 has a hollow, longitudinally-extending bore 15 that is axially offset.
  • the diameter of the axial bore 14 in the upstream filter 4 is slightly larger than the diameter of the off-set bore in the terminal filter element 5 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 a second 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 3 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.

Landscapes

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

Abstract

La présente invention concerne un article de formation d'aérosol (1) comprenant un substrat de formation d'aérosol (2) et un élément de filtre terminal (5) au niveau d'une extrémité axiale en aval de l'article/produit consommable. L'élément de filtre terminal comprend un alésage creux (15) s'étendant d'une extrémité axiale amont de l'élément de filtre terminal à une extrémité axiale aval de l'élément de filtre terminal. L'alésage creux est décalé par rapport au centre axial de l'élément de filtre terminal.
EP19797204.5A 2018-10-29 2019-10-25 Produit consommable de substitution pour fumeur Pending EP3873271A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1817537.2A GB201817537D0 (en) 2018-10-29 2018-10-29 Smoking substitute consumable
PCT/EP2019/079134 WO2020089049A1 (fr) 2018-10-29 2019-10-25 Produit consommable de substitution pour fumeur

Publications (1)

Publication Number Publication Date
EP3873271A1 true EP3873271A1 (fr) 2021-09-08

Family

ID=64560435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19797204.5A Pending EP3873271A1 (fr) 2018-10-29 2019-10-25 Produit consommable de substitution pour fumeur

Country Status (5)

Country Link
EP (1) EP3873271A1 (fr)
JP (1) JP2022506151A (fr)
GB (1) GB201817537D0 (fr)
TW (1) TW202019305A (fr)
WO (1) WO2020089049A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216088865U (zh) * 2021-09-24 2022-03-22 比亚迪精密制造有限公司 电子烟雾化装置及电子烟

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9917819D0 (en) * 1999-07-29 1999-09-29 American Filtrona Corp Filter for a cigarette and filter cigarette
AR089602A1 (es) * 2011-12-30 2014-09-03 Philip Morris Products Sa Articulo generador de aerosoles para usar con un dispositivo generador de aerosoles
EP2893820B1 (fr) * 2012-11-26 2022-07-20 Japan Tobacco Inc. Procédé de fabrication d'une cigarette à filtre, filtre, et cigarette à filtre
CN103271437B (zh) * 2013-05-22 2014-09-03 广东中烟工业有限责任公司 一种可自行导流的卷烟滤棒及卷烟
JP2017099286A (ja) * 2014-03-31 2017-06-08 日本たばこ産業株式会社 たばこ製品用のフィルタ及びたばこ製品
KR102042908B1 (ko) * 2015-03-13 2019-11-08 니뽄 다바코 산교 가부시키가이샤 담배 제품용 필터 및 담배 제품
CN107772530B (zh) * 2016-08-24 2022-06-21 贵州中烟工业有限责任公司 一种改善卷烟口感的复合烟滤嘴及应用

Also Published As

Publication number Publication date
GB201817537D0 (en) 2018-12-12
TW202019305A (zh) 2020-06-01
WO2020089049A1 (fr) 2020-05-07
JP2022506151A (ja) 2022-01-17

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