EP4076041A1 - Article destiné à être utilisé dans un système de fourniture d'aérosol - Google Patents

Article destiné à être utilisé dans un système de fourniture d'aérosol

Info

Publication number
EP4076041A1
EP4076041A1 EP20845607.9A EP20845607A EP4076041A1 EP 4076041 A1 EP4076041 A1 EP 4076041A1 EP 20845607 A EP20845607 A EP 20845607A EP 4076041 A1 EP4076041 A1 EP 4076041A1
Authority
EP
European Patent Office
Prior art keywords
aerosol
tubular body
article
hollow tubular
generating material
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
EP20845607.9A
Other languages
German (de)
English (en)
Inventor
Steven Holford
Chelsea BAILEY
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.)
Nicoventures Trading Ltd
Original Assignee
Nicoventures Trading 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 Nicoventures Trading Ltd filed Critical Nicoventures Trading Ltd
Publication of EP4076041A1 publication Critical patent/EP4076041A1/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
    • 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
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01—Making cigarettes 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
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
    • 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
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
    • 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
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • 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
    • A24D3/17—Filters 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/18—Mouthpieces for cigars or cigarettes; Manufacture thereof
    • 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means

Definitions

  • the following relates to an article for use in or as part of a non-combustible aerosol provision system, a non-combustible aerosol provision system including an article and a method of manufacturing an article.
  • Certain tobacco industry products produce an aerosol during use, which is inhaled by a user.
  • tobacco heating devices heat an aerosol generating substrate such as tobacco to form an aerosol by heating, but not burning, the substrate.
  • Such tobacco industry products commonly include mouthpieces through which the aerosol passes to reach the user’s mouth.
  • an article for use as or as part of a non-combustible aerosol provision system comprising: an aerosol generating material comprising at least one aerosol forming material; a first hollow tubular body disposed downstream of the aerosol generating material, the first hollow tubular body comprising a wall thickness greater than about 0.5mm; a second hollow tubular body comprising a wall thickness greater than about 0.5mm; and a cylindrical body disposed between the first hollow tubular body and the second hollow tubular body.
  • an article for use as or as part of a non-combustible aerosol provision system comprising: an aerosol generating material comprising at least one aerosol forming material; and a hollow tubular member formed from cellulosic material and disposed immediately downstream of the aerosol generating material; wherein, the length of the hollow tubular member is between about 5mm and about l8mm.
  • a system comprising: a non-combustible aerosol provision device comprising a heater; and an article according to the first or second aspects above.
  • a method of manufacturing an article for use as or as part of a non-combustible aerosol provision system comprising: providing an aerosol generating material comprising at least one aerosol forming material; and disposing a tubular body downstream of the aerosol generating material, the tubular body comprising a wall thickness greater than about 0.5mm; disposing a cylindrical body downstream of the tubular body; and disposing a second tubular body downstream of the cylindrical body.
  • Figure 1 illustrates an article for use as or as part of a non-combustible aerosol provision system, the article comprising a first hollow tubular body, a second hollow tubular body, and a cylindrical body disposed between the first and second hollow tubular bodies;
  • Figure 2 illustrates an article for use as or as part of a non-combustible aerosol provision system, the article including an aerosol generating section configured to extend away from a heater of the non-combustible aerosol provision system by a minimum distance;
  • Figure 3 illustrates an article for use as or as part of a non-combustible aerosol provision system, the article including a cavity downstream of the aerosol generating section formed by a wrapper;
  • Figure 4 illustrates an article for use as or as part of a non-combustible aerosol provision system, the article including an alternative mouth end section;
  • Figure 4a illustrates an article for use as or as part of a non-combustible aerosol provision system, the article including an alternative mouth end section;
  • Figure 5 illustrates an article for use as or as part of a non-combustible aerosol provision system, the article including an alternative mouth end section;
  • Figure 6 schematically illustrates the steps of a method of manufacturing an article
  • Figure 7 is a perspective illustration of a non-combustible aerosol provision device for generating aerosol from the aerosol generating material of the articles of Figures 1, 2, 3, 4, 4a and 5;
  • Figure 8 illustrates the device of Figure 7 with the outer cover removed and without an article present
  • Figure 9 is a side view of the device of Figure 7 in partial cross-section
  • Figure 10 is an exploded view of the device of Figure 7, with the outer cover omitted;
  • Figure 11A is a cross sectional view of a portion of the device of Figure 7;
  • Figure 11B is a close-up illustration of a region of the device of Figure 11A.
  • the term “delivery system” is intended to encompass systems that deliver at least one substance to a user, and includes: combustible aerosol provision systems, such as cigarettes, cigarillos, cigars, and tobacco for pipes or for roll-your-own or for make-your-own cigarettes (whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes or other smokable material); non-combustible aerosol provision systems that release compounds from an aerosol-generating material without combusting the aerosol-generating material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol-generating materials; and aerosol-free delivery systems that deliver the at least one substance to a user orally, nasally, transdermally or in another way without forming an aerosol, including but not limited to, lozenges, gums, patches, articles comprising inhalable powders, and oral products such as oral tobacco which includes snus or moist snuff, wherein the at least one substance may or may not
  • a “combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is combusted or burned during use in order to facilitate delivery of at least one substance to a user.
  • a “non-combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.
  • the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.
  • the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.
  • the non-combustible aerosol provision system is an aerosol generating material heating system, also known as a heat-not-burn system. An example of such a system is a tobacco heating system.
  • the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosolisable materials, one or a plurality of which may be heated.
  • Each of the aerosolisable materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine.
  • the hybrid system comprises a liquid or gel aerosolisable material and a solid aerosolisable material.
  • the solid aerosolisable material may comprise, for example, tobacco or a non-tobacco product.
  • the non-combustible aerosol provision system may comprise a non combustible aerosol provision device and a consumable for use with the non combustible aerosol provision device.
  • the disclosure relates to consumables comprising aerosol generating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles throughout the disclosure.
  • the aerosol-generating material also referred to as aerosol generating material, can be tobacco material as described herein.
  • a consumable is an article comprising or consisting of aerosol-generating material, part or all of which is intended to be consumed during use by a user.
  • a consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/ or an aerosol-modifying agent.
  • a consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol-generating material to generate aerosol in use.
  • the heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.
  • the non-combustible aerosol provision system such as a non combustible aerosol provision device thereof, may comprise a power source and a controller.
  • the power source may, for example, be an electric power source or an exothermic power source.
  • the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity to the exothermic power source.
  • the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/ or an aerosol-modifying agent.
  • the consumable for use with the non-combustible aerosol provision device may comprise aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/ or an aerosol-modifying agent.
  • the substance to be delivered may be an aerosol-generating material or a material that is not intended to be aerosolised.
  • either material may comprise one or more active constituents, one or more flavours, one or more aerosol-former materials, and/or one or more other functional materials.
  • An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol-generating material.
  • the aerosol generator is a heater configured to subject the aerosol-generating material to heat energy, so as to release one or more volatiles from the aerosol-generating material to form an aerosol.
  • the aerosol generator is configured to cause an aerosol to be generated from the aerosol-generating material without heating.
  • the aerosol generator may be configured to subject the aerosol-generating material to one or more of vibration, increased pressure, or electrostatic energy.
  • Aerosol-generating material is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol-generating material may, for example, be in the form of a solid, liquid or gel which may or may not contain an active substance and/or flavourants.
  • the aerosol generating material may comprise an “amorphous solid”, which may alternatively be referred to as a “monolithic solid” (i.e. non-fibrous).
  • the amorphous solid may be a dried gel.
  • the amorphous solid is a solid material that may retain some fluid, such as liquid, within it.
  • the aerosol- generating material may for example comprise from about 50wt%, 6owt% or 70wt% of amorphous solid, to about 90wt%, 95wt% or ioowt% of amorphous solid.
  • the aerosol-generating material may comprise one or more active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.
  • the aerosol-former material may comprise one or more constituents capable of forming an aerosol.
  • the aerosol-former material may comprise one or more of glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
  • the one or more other functional materials may comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
  • the material may be present on or in a support, to form a substrate.
  • the support may, for example, be or comprise paper, card, paperboard, cardboard, reconstituted material, a plastics material, a ceramic material, a composite material, glass, a metal, or a metal alloy.
  • the support comprises a susceptor.
  • the susceptor is embedded within the material.
  • the susceptor is on one or either side of the material.
  • An aerosol-modifying agent is a substance, typically located downstream of the aerosol generation area, that is configured to modify the aerosol generated, for example by changing the taste, flavour, acidity or another characteristic of the aerosol.
  • the aerosol modifying agent may be provided in an aerosol-modifying agent release component, that is operable to selectively release the aerosol-modifying agent.
  • the aerosol-modifying agent may, for example, be an additive or a sorbent.
  • the aerosol-modifying agent may, for example, comprise one or more of a flavourant, a colourant, water, and a carbon adsorbent.
  • the aerosol-modifying agent may, for example, be a solid, a liquid, or a gel.
  • the aerosol-modifying agent may be in powder, thread or granule form.
  • the aerosol-modifying agent may be free from filtration material.
  • a susceptor is a material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field.
  • the susceptor may be an electrically-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material.
  • the heating material may be magnetic material, so that penetration thereof with a varying magnetic field causes magnetic hysteresis heating of the heating material.
  • the susceptor maybe both electrically-conductive and magnetic, so that the susceptor is heatable by both heating mechanisms.
  • the device that is configured to generate the varying magnetic field is referred to as a magnetic field generator, herein.
  • Induction heating is a process in which an electrically-conductive object is heated by penetrating the object with a varying magnetic field.
  • An induction heater may comprise an electromagnet and a device for passing a varying electrical current, such as an alternating current, through the electromagnet.
  • a varying electrical current such as an alternating current
  • the electromagnet and the object to be heated are suitably relatively positioned so that the resultant varying magnetic field produced by the electromagnet penetrates the object, one or more eddy currents are generated inside the object.
  • the object has a resistance to the flow of electrical currents. Therefore, when such eddy currents are generated in the object, their flow against the electrical resistance of the object causes the object to be heated.
  • This process is called Joule, ohmic, or resistive heating.
  • An object that is capable of being inductively heated is known as a susceptor.
  • the susceptor is in the form of a closed circuit. It has been found that, when the susceptor is in the form of a closed circuit, magnetic coupling between the susceptor and the electromagnet in use is enhanced, which results in greater or improved Joule heating.
  • Magnetic hysteresis heating is a process in which an object made of a magnetic material is heated by penetrating the object with a varying magnetic field.
  • a magnetic material can be considered to comprise many atomic-scale magnets, or magnetic dipoles. When a magnetic field penetrates such material, the magnetic dipoles align with the magnetic field. Therefore, when a varying magnetic field, such as an alternating magnetic field, for example as produced by an electromagnet, penetrates the magnetic material, the orientation of the magnetic dipoles changes with the varying applied magnetic field. Such magnetic dipole reorientation causes heat to be generated in the magnetic material.
  • an article in a king-size, super-slim format will, for example, have a length of about 83 mm and a circumference of about 17 mm.
  • Each format may be produced with mouthpieces of different lengths.
  • the mouthpiece length will be from about 30 mm to 50 mm.
  • a tipping paper connects the mouthpiece to the aerosol generating material and will usually have a greater length than the mouthpiece, for example from 3 to 10 mm longer, such that the tipping paper covers the mouthpiece and overlaps the aerosol generating material, for instance in the form of a rod of substrate material, to connect the mouthpiece to the rod.
  • Articles and their aerosol generating materials and mouthpieces described herein can be made in, but are not limited to, any of the above formats.
  • upstream and downstream used herein are relative terms defined in relation to the direction of mainstream aerosol drawn though an article or device in use.
  • the filamentary tow or filter material described herein can comprise cellulose acetate fibre tow.
  • the filamentary tow can also be formed using other materials used to form fibres, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(i-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate)(PBAT), starch based materials, cotton, aliphatic polyester materials and polysaccharide polymers or a combination thereof.
  • the filamentary tow may be plasticised with a suitable plasticiser for the tow, such as triacetin where the material is cellulose acetate tow, or the tow may be non-plasticised.
  • the tow can have any suitable specification, such as fibres having a cross section which is ⁇ ’ shaped, ‘X’ shaped or ⁇ ’ shaped.
  • the fibres of the tow may have filamentary denier values between 2.5 and 15 denier per filament, for example between 8.0 and 11.0 denier per filament and total denier values of 5,000 to 50,000, for example between 10,000 and 40,000.
  • the fibres may have an isoperimetric ratio L 2 /A of 25 or less, preferably 20 or less, and more preferably 15 or less, where L is the length of the perimeter of the cross section and is the area of the cross section.
  • Filter material described herein also includes cellulose-based materials such as paper.
  • Such materials may have a relatively low density, such as between about o.i and about 0.45 grams per cubic centimetre, to allow air and/or aerosol to pass through the material.
  • filter materials may have a primary purpose, such as increasing the resistance to draw of a component, that is not related to filtration as such.
  • tobacco material refers to any material comprising tobacco or derivatives or substitutes thereof.
  • tobacco material may include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes.
  • the tobacco material may comprise one or more of ground tobacco, tobacco fibre, cut tobacco, extruded tobacco, tobacco stem, tobacco lamina, reconstituted tobacco and/or tobacco extract.
  • the tobacco material contains an aerosol forming material.
  • an "aerosol forming material” is an agent that promotes the generation of an aerosol.
  • An aerosol forming material may promote the generation of an aerosol by promoting an initial vaporisation and/or the condensation of a gas to an inhalable solid and/or liquid aerosol.
  • an aerosol forming material may improve the delivery of flavour from the aerosol generating material.
  • any suitable aerosol forming material or agents may be included in the aerosol generating material of the invention, including those described herein.
  • Suitable aerosol forming materials include, but are not limited to: a polyol such as sorbitol, glycerol, and glycols like propylene glycol or triethylene glycol; a non-polyol such as monohydric alcohols, high boiling point hydrocarbons, acids such as lactic acid, glycerol derivatives, esters such as diacetin, triacetin, triethylene glycol diacetate, triethyl citrate or myristates including ethyl myristate and isopropyl myristate and aliphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate.
  • a polyol such as sorbitol, glycerol, and glycols like propylene glycol or triethylene glycol
  • a non-polyol such as monohydric alcohols, high boiling point hydrocarbons, acids such as lactic acid,
  • the aerosol forming material may be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol.
  • the total amount of glycerol, propylene glycol, or a mixture of glycerol and propylene glycol used maybe in the range of between 10% and 30%, for instance between 15% and 25% of the tobacco material measured on a dry weight basis.
  • Glycerol maybe present in an amount of from 10 to 20 % by weight of the tobacco material, for example 13 to 16 % by weight of the composition, or about 14% or 15% by weight of the composition.
  • Propylene glycol, if present, may be present in an amount of from 0.1 to 0.3% by weight of the composition.
  • the substance to be delivered comprises an active substance.
  • the active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response.
  • the active substance may for example be selected from nutraceuticals, nootropics, psychoactives.
  • the active substance may be naturally occurring or synthetically obtained.
  • the active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or Bi2 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.
  • the active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
  • the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin or vitamin B12.
  • the active substance may comprise or be derived from one or more botanicals or constituents, derivatives or extracts thereof.
  • botanical includes any material derived from plants including, but not limited to, extracts, leaves, bark, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, shells or the like.
  • the material may comprise an active compound naturally existing in a botanical, obtained synthetically.
  • the material may be in the form of liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, strips, sheets, or the like.
  • Example botanicals are tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin, papaya, rose, sage, tea such as green tea or black tea, thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram, olive, lemon
  • the mint maybe chosen from the following mint varieties: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v, Mentha spicata crispa, Mentha cardifolia, Memtha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens
  • the active substance comprises or is derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is tobacco.
  • the active substance comprises or is derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from eucalyptus, star anise, cocoa and hemp.
  • the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from rooibos and fennel.
  • the substance to be delivered comprises a flavour.
  • flavour and “flavourant” refer to materials which, where local regulations permit, maybe used to create a desired taste, aroma or other somatosensorial sensation in a product for adult consumers. They may include naturally occurring flavour materials, botanicals, extracts of botanicals, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice (liquorice), hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed (anise), cinnamon, turmeric, Indian spices, Asian spices, herb, wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, Drambuie, bourbon, scotch, whiskey
  • the flavour comprises flavour components of cucumber, blueberry, citrus fruits and/or redberry. In some embodiments, the flavour comprises eugenol. In some embodiments, the flavour comprises flavour components extracted from tobacco. In some embodiments, the flavour comprises flavour components extracted from cannabis.
  • the flavour may comprise a sensate, which is intended to achieve a somatosensorial sensation which are usually chemically induced and perceived by the stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or in place of aroma or taste nerves, and these may include agents providing heating, cooling, tingling, numbing effect.
  • a suitable heat effect agent may be, but is not limited to, vanillyl ethyl ether and a suitable cooling agent may be, but not limited to eucolyptol, WS-3.
  • like reference numerals are used to illustrate equivalent features, articles or components.
  • Figures 1 to 5 illustrate articles 1, 1’, 1”, 1’”, 1”” for use with a non-combustible aerosol provision device too comprising a heater 101, according to embodiments.
  • the articles can be tobacco heated product consumables.
  • the article 1 comprises: a rod of aerosol generating material 2 comprising at least one aerosol forming material; a first tubular body 3 disposed downstream of the aerosol generating material 2, the first tubular body 3 comprising filamentary tow; and a mouth end section 20 , 20’, 2o”disposed downstream of the first tubular body 3.
  • the article 1 is configured such that when the article 1 is inserted into the non-combustible aerosol provision device too, the minimum distance d between the heater 101 of the non-combustible aerosol provision device 100 and the first tubular body 3 is at least about 3 mm.
  • Figure 1 illustrates an article comprising a rod of aerosol generating material 2 comprising at least one aerosol forming material; a first hollow tubular body 3 disposed downstream of the aerosol generating material 2, the first hollow tubular body 3 comprising a wall thickness greater than about 0.5 mm; and a mouth end section 20 comprising a third hollow tubular body 22 comprising a wall thickness greater than about 0.5mm, and a cylindrical body 21 disposed between the first hollow tubular body 3 and the third hollow tubular body 22.
  • First hollow tubular body 3 is formed from cellulosic material and disposed immediately downstream of the aerosol generating material.
  • the length of the hollow tubular body is between about 5mm and about 18mm.
  • the minimum distance d between the heater 101 of the non-combustible aerosol provision device too and the first tubular body prevents heat from the heater 101 damaging the filamentary tow of the first tubular body 3.
  • the filamentary tow may be cellulose acetate tow stiffened with a plasticizer, as is known in the art. Heat from the heater 101 may cause the first tubular body 3 to shrink. This is avoided by providing a gap between the first tubular body 3 and the heater 101.
  • the minimum distance d may be 3mm upwards. Preferably 3mm up to 10mm and anything in between. Exemplified minimum distances d include 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm and 10mm.
  • the article further comprises a wrapper 6 at least partially surrounding the aerosol generating material 2 and the first tubular body 3 to connect the aerosol generating material 2 to the first tubular body 3.
  • the wrapper may extend along the full length of the article 1 to attach the mouth end section 20.
  • a further wrapper 6’ underlies the wrapper 6, and extends along the mouth end section 20.
  • Further wrapper 6’ combines the second tubular body 5, the first tubular body 3, cylindrical body 21, and third tubular body 22, to form a wrapped mouth end section.
  • wrapper 6 extends partially along the length of the aerosol generating material 2 to attach the aerosol generating material to the wrapped mouth end section.
  • the wrapper 6 may be a paper material comprising a citrate, such as sodium nitrate or potassium nitrate.
  • the wrapper 6 may have a citrate content of 2% by weight or less, or i% by weight or less. This reduces charring of the wrapper 6 when the article l is heated in the non-combustible aerosol provision device 100.
  • the first tubular body 3 is configured to serve as a heat dissipater to reduce the phenomena of ‘hot puff.
  • Hot puff is defined as aerosol delivered to the user at an uncomfortably high temperature. Hot puff may be exacerbated when a user draws aerosol through a heated article 1 at a high rate, reducing the time for heat in the aerosol to be dissipated.
  • the first tubular body 3 separates the mouth end section from the heater 101 to provide space for heat to dissipate before the aerosol reaches the mouth end section 20. Further, it shall be appreciated that heat will be conducted away from the aerosol and into the first tubular body 3 as the aerosol is drawn therethrough. In this way, the first tubular body 3 acts as a heat sink.
  • hollow tubular body 3 is formed from filamentary tow.
  • other constructions may be used, such as spirally wound layers of paper, cardboard tubes, tubes formed using a papier-mache type process, moulded or extruded plastic tubes or similar.
  • the first tubular body 3 preferably has a wall thickness of at least about 325 pm and up to about 2 mm, preferably between 500 pm and 1.5 mm and more preferably between 750 pm and 1 mm. In the present example, the first tubular body 3 has a wall thickness of about 1 mm.
  • the "wall thickness" of the first tubular body 3 corresponds to the thickness of the wall of the first tubular body 3 in a radial direction. This may be measured, for example, using a caliper.
  • the use of filamentary tow and/or wall thicknesses in these ranges have advantage of insulating the hot aerosol passing through the second cavity 3a from the outer surface of the first tubular body 3.
  • the thickness of the wall of the first tubular body 3 is at least 1250 or 1500 microns.
  • the thickness of the wall of the first tubular body 3 is less than 2000 microns and, preferably, less than 1500 microns.
  • the increased thickness of the wall of the first tubular body 3 means that it has a greater thermal mass, which has been found to help reduce the temperature of the aerosol passing through the first tubular body 3 and reduce the surface temperature of the mouth end section 20 at locations downstream of the first tubular body 3. This is thought to be because the greater thermal mass of the first tubular body 3 allows the first tubular body 3 to absorb more heat from the aerosol in comparison to a first tubular body 3 with a thinner wall thickness.
  • the increased thickness of the first tubular body 3 also channels the aerosol centrally into the mouth end section 20 such that less heat from the aerosol is transferred to the outer portions of the mouth end section 20.
  • the density of the first tubular body 3 is at least about 0.25 grams per cubic centimetre (g/cc), more preferably at least about 0.3 g/cc.
  • the density of the first tubular body 3 is less than about 0.75 grams per cubic centimetre (g/cc), more preferably less than 0.6 g/ cc.
  • the density of the first tubular body 31 s between 0.25 and 0.75 g/cc, more preferably between 0.3 and 0.6 g/cc, and more preferably between 0.4 g/cc and 0.6 g/cc or about 0.5 g/cc.
  • the "density" of the first tubular body 3 refers to the density of the filamentary tow forming the element with any plasticiser incorporated. The density may be determined by dividing the total weight of the material forming the first tubular body 3 by the total volume of the material forming the first tubular body 3, wherein the total volume can be calculated using appropriate measurements of the material forming the first tubular body 3 taken, for example, using callipers. Where necessary, the appropriate dimensions maybe measured using a microscope.
  • the filamentary tow forming the first tubular body 3 preferably has a total denier of less than 45,000, more preferably less than 42,000. This total denier has been found to allow the formation of a tubular element 13 which is not too dense. Preferably, the total denier is at least 20,000, more preferably at least 25,000. In preferred embodiments, the filamentary tow forming the first tubular body 3 has a total denier between 25,000 and 45,000, more preferably between 35,000 and 45,000.
  • the cross- sectional shape of the filaments of tow are ⁇ ’ shaped, although in other embodiments other shapes such as ‘X’ shaped filaments can be used.
  • the filamentary tow forming the first tubular body 3 preferably has a denier per filament of greater than 3. This denier per filament has been found to allow the formation of a tubular element 13 which is not too dense.
  • the denier per filament is at least 4, more preferably at least 5.
  • the filamentary tow forming the first tubular body 3 has a denier per filament between 4 and 10, more preferably between 4 and 9.
  • the filamentary tow forming the first tubular body 3 has an 8Y40,ooo tow formed from cellulose acetate and comprising 18% plasticiser, for instance triacetin.
  • the first tubular body 3 preferably comprises from 10% to 22% by weight of plasticiser.
  • the plasticiser is preferably triacetin, although other plasticisers such as polyethelyne glycol (PEG) can be used.
  • the first tubular body 3 can comprise less than about 18% by weight of plasticiser, such as triacetin, or less than about 17%, less than about 16% or less than about 15%. More preferably, the tubular body 3 comprises from 10% to 20% by weight of plasticiser, for instance about about 11%, about 12%, about 13%, about 15%, about 17%, about 18% or about 19% plasticiser.
  • the permeability of the material of the wall of the first tubular body 3 is at least too Coresta Units and, preferably, at least 500 or 1000 Coresta Units.
  • first tubular body 3 increases the amount of heat that is transferred to the first tubular body 3 from the aerosol and thus reduces the temperature of the aerosol.
  • the permeability of the first tubular body 3 has also been found to increase the amount of moisture that is transferred from the aerosol to the first tubular body 3, which has been found to improve the feel of the aerosol in the user’s mouth.
  • a high permeability of first tubular body 3 also makes it easier to cut ventilation holes into the first tubular body 3 using a laser, meaning that a lower power of laser can be used.
  • the first tubular body 3 may comprise a filamentary tow comprising filaments having a cross-section with an isoperimetric ratio L 2 /A of 25 or less, 20 or less or 15 or less, where L is the length of the perimeter of the cross section and A is the area of the cross section.
  • the filaments may comprise a substantially ‘o’ shaped cross section, or at least as close as it is possible to achieve.
  • filaments with a substantially ‘o’ shaped cross section have a lower surface area than other cross sectional shapes, such as ⁇ or ‘X’ shaped filaments. Therefore, the delivery of aerosol to the user is improved.
  • aerosol drawn through the first tubular body 3 passes through both a central cavity 3a in the first tubular body 3 and also partly through the filaments of the first tubular body 3 itself.
  • filaments with a substantially ‘0’ shaped cross section, a greater proportion of aerosol will pass through the filament of the first tubular body 3 itself, increasing heat transfer to the first tubular body 3 yet further.
  • the aerosol generating material 2 described herein is a first aerosol generating material 2 and the first tubular body 3 may comprise a second aerosol generating material.
  • the second aerosol generating material may be disposed on an inner surface of the first tubular body 3.
  • the second aerosol generating material comprises at least one aerosol former material, and may also comprise at least one aerosol modifying agent, or other sensate material.
  • the aerosol former material and/ or aerosol modifying agent can be any aerosol former material or aerosol modifying agent as described herein, or a combination thereof.
  • heat from the first aerosol may aerosolise the aerosol forming material of the second aerosol generating material, to form a second aerosol.
  • the second aerosol may comprise a flavourant, which may be additional or complementary to the flavour of the first aerosol.
  • the article 1 may further comprise at least one ventilation area 12 arranged to allow external air to flow into the article.
  • the ventilation area 12 comprises a row of ventilation apertures, or perforations, cut into the wrapper 6.
  • the ventilation apertures may extend in a line around the circumference of the article 1.
  • the ventilation area 12 may comprise two or more rows of ventilation apertures.
  • ambient air may be drawn into the article during use to further cool the aerosol.
  • the at least one ventilation area 12 is arranged to provide external air into the cavity 3a of the first tubular body 3. To achieve this, the one or more rows of ventilation apertures extend around the circumference of the article over the first tubular body 3.
  • the ventilation area 12 may be provided at a position between 14 mm and 20 mm downstream of the aerosol generating material 2.
  • the ventilation area maybe provided at a position about 14.5 mm or 18.5 mm downstream of the aerosol generating material 2.
  • ventilation may be provided at a position 22.5 mm upstream of the mouth end of the article.
  • the ventilation area 12 comprises a single row of perforations formed as laser perforations.
  • the ventilation area comprises first and second parallel rows of perforations formed as laser perforations, for instance at positions 17.925 mm and 18.625 mm respectively from the mouth end. These perforations pass though the wrapper 6 and first tubular body 3.
  • the ventilation can be provided at other locations.
  • the perforations pass through the full thickness of the wall of the hollow tubular body 3.
  • the ventilations may be formed through only a portion of the wall thickness of the tubular body.
  • the ventilation perforation may extend into the tubular body by a depth of up to about 0.2 mm, or up to about 0.3 mm, or up to about 0.5 mm, or up to about 1 mm, or up to about 1.5 mm.
  • the ventilation can be provided via a single row of perforations, for instance laser perforations, into the portion of the article 1 in which the first tubular body 3 is located. This has been found to result in improved aerosol formation, which is thought to result from the airflow through the perforations being more uniform than with multiple rows of perforations, for a given ventilation level.
  • the ventilation area 12 comprises a single row of laser perforations 18.5 mm downstream of the aerosol generating material 2. It shall be appreciated that the exact location of the at least one ventilation area 12 is not essential.
  • the at least one ventilation area 12 is arranged to provide external air into the aerosol generating material 2. To achieve this, the one or more rows of ventilation apertures extend around the circumference of the article over the rod of aerosol generating material 2.
  • the level of ventilation provided by the at least one ventilation area 12 is within the range of 40% to 70% of the volume of aerosol generated by the aerosol generating material 2 passing through the article 1, when the article 1 is heated in the non- combustible aerosol provision device too.
  • Aerosol temperature has been found to generally increase with a drop in the ventilation level.
  • the relationship between aerosol temperature and ventilation level does not appear to be linear, with variations in ventilation, for instance due to manufacturing tolerances, having less impact at lower target ventilation levels.
  • the aerosol temperature could increase by approximately 6°C at the lower ventilation limit (60% ventilation).
  • the aerosol temperature may only increase by approximately 3-5°C at the lower vent limit (45% ventilation).
  • the target ventilation level of the article can therefore be within the range 40% to 70%, for instance, 45% to 65%.
  • the mean ventilation level of at least 20 articles can be between 40% and 70%, for instance between 45% and 70% or between 51% and 59% ⁇
  • an additional wrapper 10 at least partially surrounds the aerosol generating material 2, between the aerosol generating material 2 and the wrapper 6.
  • the aerosol generating material is first wrapped by additional wrapper 10 before being attached in combination with the other components of the article 1 by wrapper 6.
  • the additional wrapper 10 surrounding the aerosol generating material has a high level of permeability, for example greater than about 1000 Coresta Units, or greater than about 1500 Coresta Units, or greater than about 2000 Coresta Units.
  • the permeability of the additional wrapper 10 can be measured in accordance with ISO 2965:2009 concerning the determination of air permeability for materials used as cigarette papers, filter plug wrap and filter joining paper.
  • the additional wrapper 10 may be formed from a material with a high inherent level of permeability, an inherently porous material, or may be formed from a material with any level of inherent permeability where the final level of permeability is achieved by providing the additional wrapper 10 with a permeable zone or area.
  • the additional wrapper 10 provides a route for air to enter the smoking article.
  • the additional wrapper 10 can be provided with a permeability such that the amount of air entering through the rod of aerosol generating material 2 is relatively more than the amount of air entering the article l through the ventilation area 12 in the mouthpiece.
  • An article l having this arrangement may produce a more flavoursome aerosol which may be more satisfactory to the user.
  • the article l further comprises a second tubular body 5 disposed between the aerosol generating material 2 and the first tubular body 3.
  • the length of the second tubular body 5 is such that it extends away from the heater 101 of the non-combustible aerosol provision device too by the minimum distance d to provide the necessary separation between the first tubular body 3 and the heater.
  • the second tubular body 5 defines a cavity 5a between the aerosol generating material 2 and the first tubular body 3, wherein the length of the cavity 5a is such that it extends away from the heater 101 of the non-combustible aerosol provision device too by at least about 3 mm when the article is inserted into the non-combustible aerosol provision device too.
  • the second tubular body 5 is formed from paper. Specifically, the second tubular body 5 comprises a paper tube 5 underlying the wrapper 6. The paper tube provides additional rigidity to the cavity 5a. Specifically, the second tubular body 5 is formed from a plurality of layers of paper which are parallel wound, with butted seams, to form the tubular member 5.
  • first and second paper layers are provided in a two-ply tube, although in other examples 3, 4 or more paper layers can be used forming 3, 4 or more ply tubes.
  • Other constructions can be used, such as spirally wound layers of paper, cardboard tubes, tubes formed using a papier-mache type process, moulded or extruded plastic tubes or similar.
  • the second tubular body 5 may be formed from fibrous tow, as described for first tubular body 3.
  • the second tubular body 5 can also be formed using a stiff plug wrap and/or tipping paper, for instance as the wrapper 6 and/or further wrapper 6’, meaning that a separate tubular element is not required, as illustrated in Figure 3 and described in greater detail below.
  • the stiff plug wrap and/ or tipping paper is manufactured to have a rigidity that is sufficient to withstand the axial compressive forces and bending moments that might arise during manufacture and whilst the article 1 is in use.
  • the stiff plug wrap and/or tipping paper can have a basis weight between 70 gsm and 120 gsm, more preferably between 80 gsm and 110 gsm.
  • the stiff plug wrap and/or tipping paper can have a thickness between 80 pm and 200 pm, more preferably between 100 pm and 160 pm, or from 120 pm to 150 pm. It can be desirable for both the wrapper 6 and/or further wrapper 6’ to have values in these ranges, to achieve an acceptable overall level of rigidity for the hollow tubular member 5.
  • the second tubular body 5 preferably has a wall thickness, which can be measured, for example using a calliper, of at least about too pm and up to about 1.5mm, preferably between 100 pm and 1 mm and more preferably between 150 pm and 500 pm, or about 300 pm. In the present example, the second tubular body 5 has a wall thickness of about 250 pm. Preferably, the second tubular body 5 has a wall thickness of at least 100 microns and/or a permeability of at least 100 Coresta units. By constructing the second tubular body 5 to have a permeability of at least 100 Coresta units, the second tubular body 5 takes up moisture from aerosol generated by the aerosol generating material 2 when the article 1 is heated by the non-combustible aerosol provision device 100.
  • the second tubular body 5 is configured to have a larger internal diameter, i.e. a smaller wall thickness, than the wall thickness of the first tubular body 3.
  • the length of the second tubular body 5 is less than about 20 mm. More preferably, the length of the second tubular body 5 is less than about 18 mm. Still more preferably, the length of the second tubular body 5 is less than about 15 mm.
  • the length of the second tubular body 5 is preferably at least about 5 mm.
  • the length of the second tubular body 5 is at least about 6 mm.
  • the length of the second tubular body 5 is from about 10 mm to about 14 mm, more preferably from about 11 mm to about 13 mm, most preferably about 12 mm. In the present example, the length of the second tubular body 5 is 12 mm.
  • the combined length of the second tubular body 5 and the first tubular body 3 defines the spacing between the upstream end of the body 21 and the downstream end of the aerosol generating material 2.
  • the second tubular body 5 has a length of 12 mm
  • the first tubular body 3 has a length of 9 mm.
  • the body 21 is therefore separated from the aerosol generating material by a distance of 21 mm.
  • the maximum separation between the body 21 and the aerosol generating material is 22 mm.
  • the distance maybe 21 mm.
  • a cooling section comprised of a second tubular body 5 and a hollow tubular body 3, configured to extend a maximum of 22 mm from the aerosol generating material, an improved aerosol may be provided. It is hypothesised that limiting the combined length of the cooling sections to less than 22 mm may reduce the condensation of desirable components of the aerosol on the inner surfaces of the cooling section.
  • first tubular body 3 immediately upstream of body 21 can further reduce the condensation of desirable components of the aerosol in the body 21. Without wising to be bound by theory, it is hypothesised that this is due to the first tubular body 3 channelling aerosol through the centre of the body 21 at an increased flow rate, while the length of the cylindrical body 21 further reduces condensation in the body. In addition, by increasing the proportion of the aerosol channelled through the centre of the cylindrical body 21, the cross sectional area of the cylindrical body through which aerosol passes is effectively reduced, further reducing the potential condensation of desirable components of the aerosol in the cylindrical body 21.
  • the first tubular body 3 and second tubular body 5 are also referred to as cooling sections, and the cavities 5a, 3a defined thereby are also referred to as respective first and second cavities 5a, 3a.
  • the second tubular body 5 and first tubular body 3 are each located around and define respective air gaps within the mouthpiece 20 which act as cooling segments.
  • the air gaps provide chambers through which heated volatilised components generated by the aerosol generating material 2 flow.
  • the first cavity 5a has an internal volume greater than about 300 mm3 and/ or the second cavity 3a has an internal volume greater than about 100 mm3.
  • the first cavity 5a may have an internal volume of about 310 mm3 0 r about 330 mm3, and the second cavity 3a may have an internal volume of about I20mm3. .
  • cavities of at least these volumes has been found to enable the formation of an improved aerosol, as well as providing the cooling function described herein.
  • Such cavity sizes provide sufficient space within the mouthpiece to allow heated volatilised components to cool, therefore allowing the exposure of the aerosol generating material 2 to higher temperatures than would otherwise be possible, since that may result in an aerosol which is too warm.
  • the relative internal diameters and length of the first and second cavities has been found to be important for improving the quality of the aerosol. It has been advantageously found that providing a second tubular body 5 having a length less than 18 mm, or less than the length of the aerosol generating material 2, reduces the likelihood of desirable components of the aerosol condensing on the inner surface of the second tubular body 5. It has also been surprisingly found that providing a first tubular body 3, having a smaller inner diameter than hollow tubular body 5, immediately downstream of the second tubular body 5 provides a further improvement in the aerosol by channelling the hot aerosol through the centre of the first tubular body 5, further reducing condensation on the inner surface of the tubular bodies.
  • the inner diameters of each of the first tubular body 3 and the second tubular body 5 may be selected from a range of about 2mm to about 6mm, about 2mm to about 5mm, about 2.5mm to about 4.5mm and about 3.0mm to about 4mm.
  • the inner diameter of the first tubular body 3 is selected to be smaller than the inner diameter of the second tubular body 5.
  • the second cavity can, for instance, have an internal volume greater than 75 mm3, for instance greater than 90 mm 3 , 100 mm 3 , 140 mm 3 , or 150 mm 3 , allowing further improvement of the aerosol.
  • the second cavity 3a comprises a volume of between about 130 mm 3 and about 180 mm 3 , for instance about 150 mm 3 .
  • the first cavity can, for instance, have an internal volume greater than 100 mm 3 , for instance greater than 200 mm 3 , 300mm 3 , 350 m 3 , 400 mm 3 , or 500 mm 3 , allowing further improvement of the aerosol.
  • the first cavity 5a comprises a volume of between about 300 mm3 and about 400 mm3, 0 r between about 340 mm3 and about 360 mm3 for instance about 350 mm3.
  • the second tubular body 5 can be configured to provide a temperature differential of at least 40 degrees Celsius between a heated volatilised component entering a first, upstream end of the hollow tubular member 5 and a heated volatilised component exiting a second, downstream end of the second tubular body 5.
  • the second tubular body 5 is preferably configured to provide a temperature differential of at least 60 degrees Celsius, preferably at least 80 degrees Celsius and more preferably at least 100 degrees Celsius between a heated volatilised component entering a first, upstream end of the hollow tubular member 5 and a heated volatilised component exiting a second, downstream end of the second tubular body 5.
  • This temperature differential across the length of the second tubular body 5 protects the temperature sensitive second body of material 21 from the high temperatures of the aerosol generating material 2 when it is heated.
  • the first tubular body 3 can be configured to provide a temperature differential of at least 5 degrees Celsius between a heated volatilised component entering a first, upstream end of the first tubular body 3 and a heated volatilised component exiting a second, downstream end of the first tubular body 3.
  • the first tubular body 3 is preferably configured to provide a temperature differential of at least 10 degrees Celsius, preferably at least 12 degrees Celsius and more preferably at least 15 degrees Celsius between a heated volatilised component entering a first, upstream end of the first tubular body 3 and a heated volatilised component exiting a second, downstream end of the first tubular body 3.
  • the mouth end section 20 comprises a third tubular body 22.
  • the third tubular body 22 defines the mouth end of the article 1.
  • the third tubular body 22 may comprise a tube of cellulose acetate stiffened with plasticizer.
  • the third tubular body may be constructed in the same way as described for first tubular body 3, and may have a wall thickness and/or density in the range as described for first tubular body 3.
  • the third tubular body 22 defines a cavity 22a in the mouth end section 20 that opens at the mouth end.
  • a tubular body 22 having a length of at least 10mm or at least 12mm means that most of the consumer’s lips surround this element.
  • the length of the third tubular body 22 is less than about 20 mm. More preferably, the length of the third tubular body 22 is less than about 15 mm. Still more preferably, the length of the third hollow tubular body 22 is less than about 10 mm. In addition, or as an alternative, the length of the third tubular body 22 is at least about 5 mm. Preferably, the length of the third tubular body 22 is at least about 6 mm.
  • the length of the third tubular body 22 is from about 5 mm to about 20 mm, more preferably from about 6 mm to about 10 mm, even more preferably from about 6 mm to about 8 mm, most preferably about 6 mm, 7 mm or about 8 mm.
  • the length of the third hollow tubular body 22 is 6 mm. In other embodiments, it can be beneficial to use a tubular body 22 having a length less than about 10 mm, for instance between about 6 mm and about 9 mm, for instance about 6 mm. It has been found that reducing the length of the mouth end section 20 can reduce the condensation of desirable components of the aerosol on the components of the article, and thereby result in delivery of an improved aerosol to the user.
  • the use of the third tubular body 22 has also been found to significantly reduce the temperature of the outer surface of the article 1 even upstream of the tubular body 22. Without wishing to be bound by theory, it is hypothesised that this is due to the third hollow tubular body 22 channelling aerosol closer to the centre of the mouth end section 20, and therefore reducing the transfer of heat from the aerosol to the outer surface of the article.
  • the third hollow tubular body 22 preferably has an internal diameter of greater than 3.0mm. Smaller diameters than this can result in increasing the velocity of aerosol passing though the mouth end section 20 to the consumers’ mouth more than is desirable, such that the aerosol becomes too warm, for instance reaching temperatures greater than 40°C or greater than 45°C. More preferably, the tubular body 22 has an internal diameter of greater than 3.1mm, and still more preferably greater than 3.5 mm or 3.6 mm. In one embodiment, the internal diameter of the tubular body 22 is about 3.9 mm.
  • the "wall thickness" of the third tubular body 22 corresponds to the thickness of the wall of the tube 22 in a radial direction. This may be measured in the same way as for first tubular body 3.
  • the wall thickness is advantageously greater than 0.9mm, and more preferably 1.0 mm or greater.
  • the wall thickness is substantially constant around the entire wall of the third tubular body 22.
  • the wall thickness is preferably greater than 0.9 mm at any point around the third tubular body 22, more preferably 1.0 mm or greater.
  • the article 1 includes a body of material 21.
  • the body of material is substantially cylindrical, and positioned immediately downstream of the first tubular body 3.
  • the body of material 21 is wrapped in an additional wrapping material, such as a first plug wrap 23.
  • the first plug wrap 23 has a basis weight of less than 50 gsm, more preferably between about 20 gsm and 40 gsm.
  • the first plug wrap 23 has a thickness of between 30 pm and 60 pm, more preferably between 35 pm and 45 pm.
  • the first plug wrap 23 has a basis weight greater than 65 gsm, for instance greater than 80 gsm, or greater than 95 gsm. In some examples, the first plug wrap 23 has a basis weight of about too gsm. It has advantageously been found that providing a first plug wrap having a basis weight in these ranges and comprising an embossed pattern can reduce the temperature of the external surface of the article 1 at a position overlying the body 21.
  • first plug wrap 23 maybe provided with an embossed pattern comprising a hexagonal repeating pattern, a linear repeating pattern, or a series of raised areas having any suitable shape. Without wishing to be bound by theory, it is thought that providing an embossed first plug wrap 23 can provide an air gap between the plug wrap and the additional wrapper 10, which can reduce heat transfer to the external surface of the article 1.
  • the first plug wrap 23 is a non-porous plug wrap, for instance having a permeability of less than too Coresta units, for instance less than 50 Coresta units.
  • the first plug wrap 23 can be a porous plug wrap, for instance having a permeability of greater than 200 Coresta units.
  • the third tubular body 22 is separated from the first tubular body 3 by the body of material 21.
  • the length of the body of material 21 is less than about 15 mm. More preferably, the length of the body of material 21 is less than about 10 mm. In addition, or as an alternative, the length of the body of material 21 is at least about 5 mm. Preferably, the length of the body of material 21 is at least about 6 mm. In some preferred embodiments, the length of the body of material 21 is from about 5 mm to about 15 mm, more preferably from about 6 mm to about 12 mm, even more preferably from about 6 mm to about 12 mm, most preferably about 6 mm, 7 mm, 8 mm, 9 mm or 10 mm. In the present example, the length of the body of material 21 is 10 mm.
  • the body of material 21, also referred to as cylindrical body 21, can be formed without any cavities or hollow portions, for instance without cavities or hollow portions having a dimension greater than 0.5mm therein.
  • the cylindrical body of material can comprise material which extends substantially continuously throughout its volume. It can, for instance, have a density which is substantially uniform across its diameter and/ or along its length.
  • the body of material 21 is formed from filamentary tow.
  • the tow used in the body of material 21 has a denier per filament (d.p.f.) of 8.4 and a total denier of 21,000.
  • the tow can, for instance, have a denier per filament (d.p.f.) of 9.5 and a total denier of 12,000.
  • the tow can, for instance, have a denier per filament (d.p.f.) of 8 and a total denier of 15,000.
  • the tow comprises plasticised cellulose acetate tow.
  • the plasticiser used in the tow comprises about 7% by weight of the tow.
  • the plasticiser is triacetin.
  • the body 21 can be formed from paper, for instance in a similar way to paper filters known for use in cigarettes.
  • the body 21 can be formed from tows other than cellulose acetate, for instance polylactic acid (PLA), other materials described herein for filamentary tow or similar materials.
  • PVA polylactic acid
  • the tow is preferably formed from cellulose acetate.
  • the tow, whether formed from cellulose acetate or other materials, preferably has a d.p.f. of at least 5, more preferably at least 6 and still more preferably at least 7.
  • the tow has relatively coarse, thick fibres with a lower surface area which result in a lower pressure drop across the body of material 21 than tows having lower d.p.f. values.
  • the tow has a denier per filament of no more than 12 d.p.f., preferably no more than 11 d.p.f. and still more preferably no more than 10 d.p.f.
  • the total denier of the tow forming the body of material 21 is preferably at most 30,000, more preferably at most 28,000 and still more preferably at most 25,000. These values of total denier provide a tow which takes up a reduced proportion of the cross sectional area of the article 1 which results in a lower pressure drop across the article 1 than tows having higher total denier values.
  • the tow preferably has a total denier of at least 8,000 and more preferably at least 10,000.
  • the denier per filament is between 5 and 12 while the total denier is between 10,000 and 25,000. More preferably, the denier per filament is between 6 and 10 while the total denier is between 11,000 and 22,000.
  • the cross-sectional shape of the filaments of tow are ⁇ ’ shaped, although in other embodiments other shapes such as ‘X’ shaped or ⁇ ’ shaped filaments can be used, with the same d.p.f. and total denier values as provided herein.
  • the tow may comprise filaments having a cross-section with an isoperimetric ratio of 25 or less, preferably 20 or less, and more preferably 15 or less.
  • the body of material 21 may comprise an adsorbent material (e.g. charcoal) dispersed within the tow.
  • the pressure drop across body 6 can, for instance, be between 0.2 and smmWG per mm of length of the body 6, for instance between o.smmWG and 2mmWG per mm of length of the body 6.
  • the pressure drop can, for instance, be between 0.5 and immWG/mm of length, between 1 and i.5mmWG/mm of length or between 1.5 and 2mmWG/mm of length.
  • the total pressure drop across body 6 can, for instance, be between 2mmWG and 8mWG, or between 4mmWG and 7mmWG.
  • the total pressure drop across body 6 can be about 5, 6 or 7mmWG.
  • the body of material 21 may comprise a capsule.
  • the capsule can comprise a breakable capsule, for instance a capsule which has a solid, frangible shell surrounding a liquid payload.
  • a single capsule is used.
  • the capsule is entirely embedded within the body of material 21. In other words, the capsule is completely surrounded by the material forming the body.
  • a plurality of breakable capsules may be disposed within the body of material 21, for instance 2, 3 or more breakable capsules.
  • the length of the body of material 21 can be increased to accommodate the number of capsules required.
  • the individual capsules may be the same as each other, or may differ from one another in terms of size and/or capsule payload.
  • multiple bodies of material maybe provided, with each body containing one or more capsules.
  • a non-combustible aerosol provision system comprising an aerosol modifying component and a heater 101 which, in use, is operable to heat the aerosol generating material such that the aerosol generating material provides an aerosol.
  • the aerosol modifying component comprises first and second capsules. The first capsule is disposed in a first portion of the aerosol modifying component and the second capsule is disposed in a second portion of the aerosol modifying component downstream of the first portion.
  • the first portion of the aerosol modifying component is heated to a first temperature during operation of the heater 101 to generate the aerosol and the second portion is heated to a second temperature during operation of the heater to generate aerosol, wherein the second temperature is at least 4 degrees Celsius lower than the first temperature.
  • the second temperature is at least 5, 6, 7, 8, 9 or 10 degrees Celsius lower than the first temperature.
  • the aerosol modifying component may comprise one or more components of the article.
  • the aerosol modifying component comprises a body of material 21, wherein the first and second capsules are disposed in the body of material 21.
  • the body of material may comprise cellulose acetate.
  • the aerosol modifying component comprises two bodies of material, wherein the first and second capsules are disposed in the first and second bodies respectively.
  • the aerosol modifying component alternatively or additionally comprises one or more tubular elements upstream and/or downstream of the body or bodies of material.
  • the aerosol generating component may comprise the mouthpiece.
  • the second capsule is spaced from the first capsule by a distance of at least 7 mm, measured as the distance between the centre of the first and second capsules.
  • the second capsule is spaced from the first capsule by a distance of at least 8, 9 or 10 mm. It has been found that increasing the distance between the first and second capsules increases the difference between the first and second temperatures.
  • the first capsule comprises an aerosol modifying agent.
  • the second capsule comprises an aerosol modifying agent which may be the same or different as the aerosol modifying agent of the first capsule.
  • a user may selectively rupture the first and second capsules by applying an external force to the aerosol modifying component in order to release the aerosol modifying agent from each capsule.
  • the aerosol-modifying agent of the second capsule is heated to a lower temperature than the aerosol-modifying agent of the first capsule due to the difference between the first and second temperatures.
  • the aerosol-modifying agents of the first and second capsules can be selected based on this temperature difference.
  • the first capsule may comprise a first aerosol modifying agent that has a lower vapour pressure than a second aerosol modifying agent of the second capsule. If the capsules were both heated to the same temperature, then the higher vapour pressure of the aerosol modifying agent of the second capsule would mean that a greater amount of the second aerosol modifying agent would be volatised relative to the aerosol modifying agent of the first capsule. However, since the second capsule is heated to a lower temperature, this effect is less pronounced such that a more even amount of the aerosol modifying agents of the first and second capsules are volatised upon breaking of the first and second capsules respectively.
  • the first and second capsules have the same aerosol-modifying profiles, meaning that both capsules contain the same type of aerosol-modifying agent and in the same amount such that if both capsules were heated to the same temperature and broken then both capsules would cause the same modification of the aerosol.
  • the first capsule is heated to a higher temperature than the second capsule, more of the aerosol-modifying agent of the first capsule will be, for example, volatised compared to the modifying agent of the second capsule and thus will cause a more pronounced modification of the aerosol than the second capsule.
  • both capsules being the same, which may make the aerosol modifying component easier and/or less expensive to manufacture, the user can decide whether to break the first capsule to cause a more pronounced modification of the aerosol, or the second capsule to cause a less pronounced modification of the aerosol, or both capsules to cause the greatest modification of the aerosol.
  • the first and second capsules both comprise first and second aerosol modifying agents.
  • the first aerosol modifying agent has a lower vapour pressure than the second aerosol modifying agent.
  • the second capsule is broken, a greater proportion of the second aerosol modifying agent will be vaporised relative to the first aerosol modifying agent in comparison to when the hotter first capsule is broken during use of the system to generate aerosol. Therefore, the same capsule can be used to generate different modifications of the aerosol based on the positon of the capsule in the first or second portion of the aerosol modifying component.
  • the capsule has a core-shell structure.
  • the capsule comprises a shell encapsulating a liquid agent, for instance a flavourant or other agent, which can be any one of the flavourants or aerosol modifying agents described herein.
  • the shell of the capsule can be ruptured by a user to release the flavourant or other agent into the body of material 21.
  • the first plug wrap 23 can comprise a barrier coating to make the material of the plug wrap substantially impermeable to the liquid payload of the capsule.
  • the wrapping material 6 can comprise a barrier coating to make the material of the wrapping material 6 substantially impermeable to the liquid payload of the capsule.
  • the capsule is spherical and has a diameter of about 3 mm. In other examples, other shapes and sizes of capsule can be used.
  • the total weight of the capsule may be in the range about 10 mg to about 50 mg.
  • tow capability curve which represents the pressure drop through a length of rod formed using the tow, for each of a range of tow weights. Parameters such as the rod length and circumference, wrapper thickness and tow plasticiser level are specified, and these are combined with the tow specification to generate the tow capability curve, which gives an indication of the pressure drop which would be provided by different tow weights between the minimum and maximum weights achievable using standard filter rod forming machinery.
  • Such tow capability curves can be calculated, for instance, using software available from tow suppliers.
  • a body of material 21 which includes filamentary tow having a weight per mm of length of the body of material 21 which is between about 10% and about 30% of the range between the minimum and maximum weights of a tow capability curve generated for the filamentary tow. This can provide an acceptable balance between providing enough tow weight to avoid shrinkage after the body 21 has been formed, providing an acceptable pressure drop, while also assisting with capsule placement within the tow, for capsules of the sizes described herein.
  • a control sample and an article according to the claimed invention were tested, as described below, to determine the distribution of nicotine and glycerol, desirable components of the aerosol, throughout the article after use.
  • the pre-use level of glycerol and nicotine in the aerosol generating material was also determined using mass balance analysis, as described below.
  • the control sample comprises an aerosol generating material section having a length of 30 mm, a second tubular body 5 arranged immediately downstream of the aerosol generating section, having a length of 17 mm, a cylindrical body 21 having a length of 10 mm, and a third tubular body 22 having a length of 6 mm.
  • Sample A has a construction as illustrated and generally described with reference Figure 1, including an aerosol generating material section having a length of 30 mm, a second tubular body 5 arranged immediately downstream of the aerosol generating section and having a length of 8 mm, a first tubular body 3 having a length of 9 mm, a cylindrical body 21 having a length of 10 mm, and a third tubular body 22 having a length of 6 mm.
  • Samples for mass balance analysis were taken of the aerosol generating material 2; the cooling section, which comprises the second tubular body 5, and where present, the first tubular body 3; and the mouth end section, comprising the cylindrical body 21 and the third tubular body 22.
  • the amount of nicotine and glycerol in each of the mouth end section, the cooling section and the aerosol generating section after use of the article can be determined using mass balance analysis.
  • the amount of nicotine and glycerol present in the delivered aerosol can be determined using emissions analysis.
  • Mass balance analysis and emissions analysis are techniques which are known to the person skilled in the art.
  • Table 2 Average glycerol content in sections of a control article, and an article according to the present disclosure (sample A).
  • mass balance analysis was performed to determine the amount of a given substance (in the examples in tables 1 and 2 herein, nicotine and glycerol respectively), present in a given section of the article after use. Mass balance analysis was also used to determine the amount of nicotine and glycerol present in a given section of the article prior to use, so that both the distribution of the substance in the article and the amount present in the aerosol generated from an article could be compared to the total amount of the substance initially provided.
  • the article does not refer to a single specific article, but rather an article having a specific design or configuration, which is therefore comparable to other articles having the same specific design or configuration.
  • a number of such articles will have been analysed to obtain the values presented herein, which represent mean values, as described in further detail below.
  • the same individual article is not tested both before and after use, to obtain the pre and post use data points. Instead, the pre use data will be obtained from a number of articles having a specific design or configuration, and the post use data will be obtained from a separate number of articles having the same specific design or configuration.
  • the article is deconstructed into sections.
  • the number of articles deconstructed to obtain samples is such that the total mass of the sample to be analysed is at least 1 gram.
  • Each sample comprises a number of the relevant components of the deconstructed article (e.g. the aerosol generating material section 2, or the cylindrical body 21 and third tubular body 22), the number being sufficient that the total mass of the components taken from a number of articles have a combined mass of at least 1 gram.
  • At least three repetitions of mass balance analysis, each repetition performed on a new sample obtained from a new set of articles, should be carried out.
  • mass balance analysis employing the sampling protocol described in the preceding paragraph was performed to determine the pre-use nicotine and glycerol content of the article.
  • Emissions analysis can be performed using a standard puffing regime, and a heating device intended for use with the article, to determine the nicotine and glycerol content of the generated aerosol.
  • the puffing regime is according to the ISO intense regime (where this includes a 55 ml puff volume, a 30s interval between puffs, and a 2s puff duration), but with any ventilation in the open configuration. Where the device has any ‘boost’ or additional smoking functions, these should not be used for performing the test.
  • the length of the rod of aerosol generating material 2 is such that it extends away from the heater 101 of the non-combustible aerosol provision device too by the minimum distance d when the article 1’ is inserted into the non-combustible aerosol provision device too. Therefore, the rod of aerosol generating material 2 provides the necessary separation between the first tubular body 3 and the heater without having to space the first tubular body 3 from the rod of aerosol generating material.
  • the first tubular body is separated from the aerosol generating material 2 such that, when the article 1” is inserted into the non combustible aerosol provision device too, the minimum distance d between the heater 101 of the non-combustible aerosol provision device too and the first tubular body 3 is maintained.
  • the space between the aerosol generating material 2 and the first tubular body 3 defines a cavity 6a.
  • the third tubular body 22 is not essential and may be omitted.
  • the mouth end section 20’ comprises the body of material 21 adjacent the first tubular body 3 and held thereagainst by wrapper 6.
  • the mouth end section 20 comprises a body of material 21 comprising an inner body 21a and an outer body 21b.
  • the outer body 21b is a tube that surrounds the inner body 21a.
  • the resistance to gaseous flow through the length of the inner body 21a is less than a resistance to gaseous flow through the length of the outer body 21b. This may be achieved by providing an outer body 21b having a greater fibre density to the inner body 21a.
  • the mouth end section 20 comprises a body of material 21 with a non-circular cross section.
  • the sheet of additional wrapping material 23 extending between the body of material 21 and the wrapper 6 comprises a pattern of strength discontinuities. Said strength discontinuities result in non-uniformity in the curvature of at least a portion of said additional wrapping material 23 to give the body of material 21 its non-circular cross section.
  • the additional wrapping material 23 and body of material 21 within the additional wrapping material 23 present a star shaped cross section.
  • a method of manufacturing an article 1 for use as or as part of a non-combustible aerosol provision system will now be described with reference to figure 6.
  • the method comprises: step Si of providing an aerosol generating material 2 comprising at least one aerosol forming material; and step S2 of disposing a tubular body downstream of the aerosol generating material, the tubular body 3 comprising a wall thickness greater than about 0.5mm; step S3 of disposing a cylindrical body 21 downstream of the tubular body; and step S4 of disposing a second tubular body 22 downstream of the cylindrical body.
  • steps S2 to S4 may be performed concurrently, and a wrapped section comprising a tubular body 2, cylindrical body 21, and tubular body 22 may be provided together for attachment to the aerosol generating material 2.
  • Figure 7 shows an example of a non-combustible aerosol provision device too comprising a heater 101 for generating aerosol from an aerosol generating medium/material such as the aerosol generating material 11 of the articles 10 described herein.
  • the device too may be used to heat a replaceable article 110 comprising the aerosol generating medium, for instance the article 10 described herein, to generate an aerosol or other inhalable medium which is inhaled by a user of the device too.
  • the device too and replaceable article 110 together form a system.
  • the device 100 comprises a housing 102 (in the form of an outer cover) which surrounds and houses various components of the device 100.
  • the device 100 has an opening 104 in one end, through which the article 110 maybe inserted for heating by a heater 101, hereinafter referred to as the heating assembly.
  • the heating assembly may be fully or partially inserted into the heating assembly where it may be heated by one or more components of the heater assembly.
  • the device 100 of this example comprises a first end member 106 which comprises a lid 108 which is moveable relative to the first end member 106 to close the opening 104 when no article 110 is in place.
  • the lid 108 is shown in an open configuration, however the lid 108 may move into a closed configuration. For example, a user may cause the lid 108 to slide in the direction of arrow “B”.
  • the device 100 may also include a user-operable control element 112, such as a button or switch, which operates the device 100 when pressed. For example, a user may turn on the device 100 by operating the switch 112.
  • a user-operable control element 112 such as a button or switch
  • the device 100 may also comprise an electrical component, such as a socket/port 114, which can receive a cable to charge a battery of the device too.
  • the socket 114 may be a charging port, such as a USB charging port.
  • Figure 8 depicts the device too of Figure 7 with the outer cover 102 removed and without an article 110 present.
  • the device too defines a longitudinal axis 134.
  • the first end member 106 is arranged at one end of the device too and a second end member 116 is arranged at an opposite end of the device too.
  • the first and second end members 106, 116 together at least partially define end surfaces of the device too.
  • the bottom surface of the second end member 116 at least partially defines a bottom surface of the device too.
  • Edges of the outer cover 102 may also define a portion of the end surfaces.
  • the lid 108 also defines a portion of a top surface of the device too.
  • the end of the device closest to the opening 104 may be known as the proximal end (or mouth end) of the device too because, in use, it is closest to the mouth of the user.
  • a user inserts an article 110 into the opening 104, operates the user control 112 to begin heating the aerosol generating material and draws on the aerosol generated in the device. This causes the aerosol to flow through the device 100 along a flow path towards the proximal end of the device 100.
  • the other end of the device furthest away from the opening 104 may be known as the distal end of the device 100 because, in use, it is the end furthest away from the mouth of the user. As a user draws on the aerosol generated in the device, the aerosol flows away from the distal end of the device 100.
  • the device 100 further comprises a power source 118.
  • the power source 118 maybe, for example, a battery, such as a rechargeable battery or a non-rechargeable battery.
  • suitable batteries include, for example, a lithium battery (such as a lithium-ion battery), a nickel battery (such as a nickel-cadmium battery), and an alkaline battery.
  • the battery is electrically coupled to the heating assembly to supply electrical power when required and under control of a controller (not shown) to heat the aerosol generating material.
  • the battery is connected to a central support 120 which holds the battery 118 in place.
  • the device further comprises at least one electronics module 122.
  • the electronics module 122 may comprise, for example, a printed circuit board (PCB).
  • the PCB 122 may support at least one controller, such as a processor, and memory.
  • the PCB 122 may also comprise one or more electrical tracks to electrically connect together various electronic components of the device too.
  • the battery terminals maybe electrically connected to the PCB 122 so that power can be distributed throughout the device too.
  • the socket 114 may also be electrically coupled to the battery via the electrical tracks.
  • the heating assembly is an inductive heating assembly and comprises various components to heat the aerosol generating material of the article 110 via an inductive heating process.
  • Induction heating is a process of heating an electrically conducting object (such as a susceptor) by electromagnetic induction.
  • An induction heating assembly may comprise an inductive element, for example, one or more inductor coils, and a device for passing a varying electric current, such as an alternating electric current, through the inductive element.
  • the varying electric current in the inductive element produces a varying magnetic field.
  • the varying magnetic field penetrates a susceptor suitably positioned with respect to the inductive element, and generates eddy currents inside the susceptor.
  • the susceptor has electrical resistance to the eddy currents, and hence the flow of the eddy currents against this resistance causes the susceptor to be heated by Joule heating.
  • the susceptor comprises ferromagnetic material such as iron, nickel or cobalt
  • heat may also be generated by magnetic hysteresis losses in the susceptor, i.e. by the varying orientation of magnetic dipoles in the magnetic material as a result of their alignment with the varying magnetic field.
  • inductive heating as compared to heating by conduction for example, heat is generated inside the susceptor, allowing for rapid heating. Further, there need not be any physical contact between the inductive heater and the susceptor, allowing for enhanced freedom in construction and application.
  • the induction heating assembly of the example device 100 comprises a susceptor arrangement 132 (herein referred to as “a susceptor”), a first inductor coil 124 and a second inductor coil 126.
  • the first and second inductor coils 124, 126 are made from an electrically conducting material.
  • the first and second inductor coils 124, 126 are made from Litz wire/ cable which is wound in a helical fashion to provide helical inductor coils 124, 126.
  • Litz wire comprises a plurality of individual wires which are individually insulated and are twisted together to form a single wire. Litz wires are designed to reduce the skin effect losses in a conductor.
  • the first and second inductor coils 124, 126 are made from copper Litz wire which has a rectangular cross section. In other examples the Litz wire can have other shape cross sections, such as circular.
  • the first inductor coil 124 is configured to generate a first varying magnetic field for heating a first section of the susceptor 132 and the second inductor coil 126 is configured to generate a second varying magnetic field for heating a second section of the susceptor 132.
  • the first inductor coil 124 is adjacent to the second inductor coil 126 in a direction along the longitudinal axis 134 of the device too (that is, the first and second inductor coils 124, 126 to not overlap).
  • the susceptor arrangement 132 may comprise a single susceptor, or two or more separate susceptors. Ends 130 of the first and second inductor coils 124, 126 can be connected to the PCB 122.
  • first and second inductor coils 124, 126 may have at least one characteristic different from each other.
  • the first inductor coil 124 may have at least one characteristic different from the second inductor coil 126.
  • the first inductor coil 124 may have a different value of inductance than the second inductor coil 126.
  • the first and second inductor coils 124, 126 are of different lengths such that the first inductor coil 124 is wound over a smaller section of the susceptor 132 than the second inductor coil 126.
  • the first inductor coil 124 may comprise a different number of turns than the second inductor coil 126 (assuming that the spacing between individual turns is substantially the same).
  • the first inductor coil 124 may be made from a different material to the second inductor coil 126.
  • the first and second inductor coils 124, 126 may be substantially identical.
  • the first inductor coil 124 and the second inductor coil 126 are wound in opposite directions. This can be useful when the inductor coils are active at different times. For example, initially, the first inductor coil 124 may be operating to heat a first section/portion of the article 110, and at a later time, the second inductor coil 126 may be operating to heat a second section/portion of the article 110. Winding the coils in opposite directions helps reduce the current induced in the inactive coil when used in conjunction with a particular type of control circuit. In Figure 8, the first inductor coil 124 is a right-hand helix and the second inductor coil 126 is a left-hand helix.
  • the inductor coils 124, 126 may be wound in the same direction, or the first inductor coil 124 may be a left-hand helix and the second inductor coil 126 may be a right-hand helix.
  • the susceptor 132 of this example is hollow and therefore defines a receptacle within which aerosol generating material is received.
  • the article 110 can be inserted into the susceptor 132.
  • the susceptor 120 is tubular, with a circular cross section.
  • the susceptor 132 maybe made from one or more materials.
  • the susceptor 132 comprises carbon steel having a coating of Nickel or Cobalt.
  • the susceptor 132 may comprise at least two materials capable of being heated at two different frequencies for selective aerosolization of the at least two materials.
  • a first section of the susceptor 132 (which is heated by the first inductor coil 124) may comprise a first material
  • a second section of the susceptor 132 which is heated by the second inductor coil 126 may comprise a second, different material.
  • the first section may comprise first and second materials, where the first and second materials can be heated differently based upon operation of the first inductor coil 124.
  • the first and second materials maybe adjacent along an axis defined by the susceptor 132, or may form different layers within the susceptor 132.
  • the second section may comprise third and fourth materials, where the third and fourth materials can be heated differently based upon operation of the second inductor coil 126.
  • the third and fourth materials maybe adjacent along an axis defined by the susceptor 132, or may form different layers within the susceptor 132.
  • Third material may the same as the first material, and the fourth material may be the same as the second material, for example. Alternatively, each of the materials may be different.
  • the susceptor may comprise carbon steel or aluminium for example.
  • the device 100 of Figure 8 further comprises an insulating member 128 which may be generally tubular and at least partially surround the susceptor 132.
  • the insulating member 128 may be constructed from any insulating material, such as plastic for example. In this particular example, the insulating member is constructed from polyether ether ketone (PEEK).
  • PEEK polyether ether ketone
  • the insulating member 128 can also fully or partially support the first and second inductor coils 124, 126.
  • the first and second inductor coils 124, 126 are positioned around the insulating member 128 and are in contact with a radially outward surface of the insulating member 128.
  • the insulating member 128 does not abut the first and second inductor coils 124, 126.
  • a small gap may be present between the outer surface of the insulating member 128 and the inner surface of the first and second inductor coils 124, 126.
  • the susceptor 132, the insulating member 128, and the first and second inductor coils 124, 126 are coaxial around a central longitudinal axis of the susceptor 132.
  • Figure 9 shows a side view of device too in partial cross-section.
  • the outer cover 102 is present in this example.
  • the rectangular cross-sectional shape of the first and second inductor coils 124, 126 is more clearly visible.
  • the device too further comprises a support 136 which engages one end of the susceptor 132 to hold the susceptor 132 in place.
  • the support 136 is connected to the second end member 116.
  • the device may also comprise a second printed circuit board 138 associated within the control element 112.
  • the device 100 further comprises a second lid/cap 140 and a spring 142, arranged towards the distal end of the device 100.
  • the spring 142 allows the second lid 140 to be opened, to provide access to the susceptor 132.
  • a user may open the second lid 140 to clean the susceptor 132 and/or the support 136.
  • the device 100 further comprises an expansion chamber 144 which extends away from a proximal end of the susceptor 132 towards the opening 104 of the device. Located at least partially within the expansion chamber 144 is a retention clip 146 to abut and hold the article 110 when received within the device 100.
  • the expansion chamber 144 is connected to the end member 106.
  • Figure 10 is an exploded view of the device 100 of Figure 9, with the outer cover 102 omitted.
  • Figure 11A depicts a cross section of a portion of the device 100 of Figure 9.
  • Figure 11B depicts a close-up of a region of Figure 11A.
  • Figures 11A and 11B show the article 110 received within the susceptor 132, where the article 110 is dimensioned so that the outer surface of the article 110 abuts the inner surface of the susceptor 132. This ensures that the heating is most efficient.
  • the article 110 of this example comprises aerosol generating material 110a.
  • the aerosol generating material 110a is positioned within the susceptor 132.
  • the article 110 may also comprise other components such as a filter, wrapping materials and/ or a cooling structure.
  • Figure 11B shows that the outer surface of the susceptor 132 is spaced apart from the inner surface of the inductor coils 124, 126 by a distance 150, measured in a direction perpendicular to a longitudinal axis 158 of the susceptor 132.
  • the distance 150 is about 3 mm to 4mm, about 3-3.5mm, or about 3.25mm.
  • Figure 11B further shows that the outer surface of the insulating member 128 is spaced apart from the inner surface of the inductor coils 124, 126 by a distance 152, measured in a direction perpendicular to a longitudinal axis 158 of the susceptor 132.
  • the distance 152 is about 0.05 mm.
  • the distance 152 is substantially omm, such that the inductor coils 124, 126 abut and touch the insulating member 128.
  • the susceptor 132 has a wall thickness 154 of about 0.025mm to imm, or about 0.05 mm.
  • the susceptor 132 has a length of about 40mm to 60mm, about 40mm to 45 mm, or about 44.5 mm.
  • the insulating member 128 has a wall thickness 156 of about 0.25 mm to 2 mm, 0.25 mm to imm, or about 0.5 mm.
  • the article 10 described herein can be inserted into a non-combustible aerosol provision device such as the device 100 described with reference to Figures 7 to 11. At least a portion of the mouthpiece 1 of the article 10 protrudes from the non-combustible aerosol provision device 100 and can be placed into a user’s mouth.
  • An aerosol is produced by heating the aerosol generating material 11 using the device 100. The aerosol produced by the aerosol generating material 11 passes through the mouthpiece 1 to the user’s mouth.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Medicinal Preparation (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)

Abstract

La présente invention concerne un article destiné à être utilisé en tant que partie d'un système de fourniture d'aérosol non combustible, ledit article comprenant un matériau de génération d'aérosol ayant au moins un matériau de formation d'aérosol, un premier corps tubulaire creux disposé en aval du matériau de génération d'aérosol, le premier corps tubulaire creux présentant une épaisseur de paroi supérieure à environ 0,5 mm, un second corps tubulaire creux présentant une épaisseur de paroi supérieure à environ 0,5 mm et un corps cylindrique disposé entre le premier corps tubulaire creux et le second corps tubulaire creux. La présente invention porte également sur un article comprenant un élément tubulaire creux formé à partir d'un matériau cellulosique et disposé immédiatement en aval du matériau de génération d'aérosol, la longueur de l'élément tubulaire creux étant comprise entre environ 5 mm et environ 18 mm. La présente invention se rapporte également à un système et à un procédé de fabrication d'un article.
EP20845607.9A 2019-12-20 2020-12-21 Article destiné à être utilisé dans un système de fourniture d'aérosol Pending EP4076041A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB1919064.4A GB201919064D0 (en) 2019-12-20 2019-12-20 Article for use in an aerosol provision system
GBGB2019573.1A GB202019573D0 (en) 2019-12-20 2020-12-11 Article for use in an aerosol provision system
PCT/GB2020/053333 WO2021123839A1 (fr) 2019-12-20 2020-12-21 Article destiné à être utilisé dans un système de fourniture d'aérosol

Publications (1)

Publication Number Publication Date
EP4076041A1 true EP4076041A1 (fr) 2022-10-26

Family

ID=69322872

Family Applications (3)

Application Number Title Priority Date Filing Date
EP20838224.2A Pending EP4076027A1 (fr) 2019-12-20 2020-12-18 Article destiné à être utilisé dans un système de fourniture d'aérosol
EP20838255.6A Pending EP4076037A1 (fr) 2019-12-20 2020-12-21 Article destiné à être utilisé dans un système de fourniture d'aérosol
EP20845607.9A Pending EP4076041A1 (fr) 2019-12-20 2020-12-21 Article destiné à être utilisé dans un système de fourniture d'aérosol

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP20838224.2A Pending EP4076027A1 (fr) 2019-12-20 2020-12-18 Article destiné à être utilisé dans un système de fourniture d'aérosol
EP20838255.6A Pending EP4076037A1 (fr) 2019-12-20 2020-12-21 Article destiné à être utilisé dans un système de fourniture d'aérosol

Country Status (6)

Country Link
US (3) US20230013020A1 (fr)
EP (3) EP4076027A1 (fr)
JP (3) JP7476313B2 (fr)
KR (3) KR20220116532A (fr)
GB (3) GB201919064D0 (fr)
WO (3) WO2021123817A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL303503A (en) * 2020-12-11 2023-08-01 Nicoventures Trading Ltd Article for use in an aerosol delivery system
GB202110881D0 (en) * 2021-07-28 2021-09-08 Nicoventures Trading Ltd An article for use with a non-combustible aerosol provision device
WO2023198764A1 (fr) * 2022-04-12 2023-10-19 Philip Morris Products S.A. Article de génération d'aérosol avec tige relativement courte de substrat de génération d'aérosol
WO2024068538A1 (fr) * 2022-09-29 2024-04-04 Philip Morris Products S.A. Dispositif de génération d'aérosol doté d'un support de module de chauffage

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499636A (en) 1992-09-11 1996-03-19 Philip Morris Incorporated Cigarette for electrical smoking system
US20070267033A1 (en) * 2006-02-09 2007-11-22 Philip Morris Usa Inc. Gamma cyclodextrin flavoring-release additives
GB201219540D0 (en) * 2012-10-31 2012-12-12 British American Tobacco Co A filter for a smoking article
CA2932333A1 (fr) * 2013-12-05 2015-06-11 Philip Morris Products S.A. Article generateur d'aerosol ayant un trajet de flux d'air a faible resistance
JP7189884B2 (ja) * 2017-04-03 2022-12-14 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 挿入ユニットを受容するように構成された喫煙物品マウスピース
CN207040862U (zh) * 2017-05-26 2018-02-27 湖北中烟工业有限责任公司 具有降低烟气温度和防止嘴棒热塌陷的低温卷烟
CN107087811B (zh) * 2017-05-26 2019-10-11 湖北中烟工业有限责任公司 具有降低烟气温度和防止嘴棒热塌陷的低温卷烟
JP2019026974A (ja) 2017-08-01 2019-02-21 日本製紙パピリア株式会社 喫煙物品用巻紙および喫煙物品巻紙を用いたシガレット
CN207505912U (zh) * 2017-09-26 2018-06-19 南通金源新材料有限公司 一种具有腔体式容器段的加热不燃烧卷烟
CN111801026B (zh) * 2018-03-26 2024-04-19 菲利普莫里斯生产公司 具有有孔的多孔支撑元件的吸入器
GB201810738D0 (en) * 2018-06-29 2018-08-15 Nicoventures Trading Ltd An aerosol generating component for a tobacco heating device and mouthpiece therefor
CN109892707A (zh) * 2019-04-22 2019-06-18 博颉(上海)管理咨询有限公司 一种烟草制品及其制作方法

Also Published As

Publication number Publication date
JP2023506999A (ja) 2023-02-20
JP2023506997A (ja) 2023-02-20
KR20220118507A (ko) 2022-08-25
GB202019573D0 (en) 2021-01-27
WO2021123839A1 (fr) 2021-06-24
US20230008855A1 (en) 2023-01-12
KR20220118508A (ko) 2022-08-25
WO2021123817A1 (fr) 2021-06-24
JP7455977B2 (ja) 2024-03-26
EP4076037A1 (fr) 2022-10-26
JP2023507000A (ja) 2023-02-20
JP7476313B2 (ja) 2024-04-30
EP4076027A1 (fr) 2022-10-26
GB201919064D0 (en) 2020-02-05
KR20220116532A (ko) 2022-08-23
US20230034060A1 (en) 2023-02-02
GB202019581D0 (en) 2021-01-27
US20230013020A1 (en) 2023-01-19
WO2021123840A1 (fr) 2021-06-24

Similar Documents

Publication Publication Date Title
WO2021123843A1 (fr) Article destiné à être utilisé dans un système de fourniture d'aérosol et article destiné à être utilisé dans un système de fourniture d'aérosol non combustible
US20230034060A1 (en) Article for use in an aerosol provision system
US20230023810A1 (en) Component for an article for use in a non-combustible aerosol provision system
US20230337725A1 (en) Component for use in an aerosol provision system
US20230015448A1 (en) Component for use in an aerosol provision system
US20240074488A1 (en) Article for use in an aerosol provision system
US20240180234A1 (en) Article for use in an aerosol provision system
EP4322777A1 (fr) Article destiné à être utilisé dans un système de fourniture d'aérosol
WO2022269239A1 (fr) Article destiné à être utilisé avec un dispositif de fourniture d'aérosol non combustible
CN116963620A (zh) 用于气溶胶提供系统的制品

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220720

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230505

P02 Opt-out of the competence of the unified patent court (upc) corrected

Effective date: 20230604