WO2022233827A1 - Article de génération d'aérosol pourvu d'une étiquette rfid à couplage capacitif - Google Patents

Article de génération d'aérosol pourvu d'une étiquette rfid à couplage capacitif Download PDF

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Publication number
WO2022233827A1
WO2022233827A1 PCT/EP2022/061781 EP2022061781W WO2022233827A1 WO 2022233827 A1 WO2022233827 A1 WO 2022233827A1 EP 2022061781 W EP2022061781 W EP 2022061781W WO 2022233827 A1 WO2022233827 A1 WO 2022233827A1
Authority
WO
WIPO (PCT)
Prior art keywords
aerosol
generating article
rfid tag
inhalation device
spacer tube
Prior art date
Application number
PCT/EP2022/061781
Other languages
English (en)
Inventor
Eugène BLANCHARD
Kyle ADAIR
Original Assignee
Jt International Sa
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 Jt International Sa filed Critical Jt International Sa
Publication of WO2022233827A1 publication Critical patent/WO2022233827A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • G06K7/081—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes electrostatic, e.g. by detecting the charge of capacitance between electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/22—Capacitive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/53—Monitoring, e.g. fault detection

Definitions

  • the present invention generally relates to the field of inhalation devices.
  • the present invention is directed to aerosol generating article for use in an inhalation device, inhalation device for use with such an aerosol-generating article, and an inhalation system.
  • the present invention is also directed to a method of manufacturing an aerosol-generating article.
  • Inhalation devices also referred to as aerosol generation devices, such as e-cigarettes, vaping devices and aerosol inhalers
  • aerosol generation devices such as e-cigarettes, vaping devices and aerosol inhalers
  • Such inhalation devices are hand-held devices and conventionally include an atomizer, a power supply, and a tobacco stick, liquid-filled capsule, or similar means disposed therein in order to generate an aerosol (that is, a vapour) that may be inhaled by the user.
  • Such means may be referred to as an aerosol-generating article and may contain an amount of an aerosol generating material.
  • the generated aerosol may contain, for example, a form of nicotine such that user of the inhalation device may, for example, simulate smoking tobacco by inhaling the generated aerosol.
  • Inhalation devices are generally designed to be reusable.
  • a reusable inhalation device may include features such as a rechargeable power source.
  • a supply of any consumables required for aerosol generation namely the aerosol-generating material comprised in the aerosol-generating article, must be maintained.
  • the aerosol-generating article comprising the aerosol-generating material is generally designed as a consumable product that is detachable from the inhalation device and replaceable.
  • the aerosol-generating material generally comprises nicotine or other active substances
  • the inhalation device and aerosol-generating article are designed such that only authorized aerosol-generating articles (e.g. those produced by the same manufacturer as the inhalation device or those which have undergone a particular quality control) may be used with the inhalation device.
  • a consumable aerosol generating article and a reusable inhalation device may have a specifically configured connecting means such that a non-authorized aerosol-generating article cannot be successfully connected to the inhalation device.
  • WO 2020/148550 A1 relates to a capacitive coupled radio frequency identification, RFID, tag and a method for reading such a tag. Unlike other RFID tags, capacitive coupled RFID tags do not comprise an antenna and, instead, alter an impedance in response to an RF electric field applied by a reader. This altering impedance is detectable by the reader. WO 2020/148550 A1 proposes that such a tag may be attached to consumables such as an exchangeable part of an e-cigarette.
  • Such a capacitive coupled RFID tag may, as such, be adapted to provide an electronic means of identifying particular consumables.
  • capacitive coupled RFID tag and other such RFID tags can only operate correctly at relatively low temperatures (e.g. up to 100°C).
  • capacitive coupled RFID tags due to their absent antenna, must be read by reading electrodes within close distance, for example within a maximum distance of 1 mm to 2 mm, as opposed to antenna based RFIDs.
  • the aerosol-generating material comprised in an aerosol generating article must generally be heated by an inhalation device to significantly higher temperatures than this in order generate an aerosol.
  • aerosol generation by conventional inhalation devices may require temperatures of, for example, up to 250°C or up to 350°C.
  • the present invention is intended to address one or more of the above technical problems.
  • an aerosol-generating article for use in an inhalation device.
  • the aerosol generating article comprises an aerosol-generating material section comprising a charge of an aerosol-generating material.
  • the aerosol generating article further comprises a filter section comprising at least one filter element and a hollow spacer tube arranged between the aerosol generating material section and the at least one filter element.
  • An RFID tag is arranged on the aerosol-generating article along a length of the hollow spacer tube.
  • the RFID tag is a capacitive-coupled RFID tag not having an antenna.
  • the application of heat by the inhalation device is generally focused on the aerosol-generating material section comprising the aerosol-generating material in order to generate an aerosol.
  • the aerosol-generating material section generally has a relatively high temperature that may be unsuitable for placement of the RFID tag.
  • the aerosol-generating article further comprises a hollow spacer tube arranged between the aerosol generating material section and the at least one filter element.
  • the hollow spacer tube can be made of non-filtering material and in that case it would not function to filter the generated aerosol. As such, there is minimal heat exchange by conduction between the hollow spacer tube and the generated aerosol as the generated aerosol passes through the hollow spacer tube and the hollow spacer tube provides effective heat insulation against the aerosol leaving the aerosol-generating material section.
  • the aerosol-generating article by providing an aerosol-generating article having a hollow spacer tube and by arranging the RFID tag on the aerosol-generating article along a length of the hollow spacer tube, the aerosol-generating article according to the first aspect ensures that the RFID tag is not exposed to excessively high temperatures and, as such may operate correctly.
  • the aerosol-generating article according to the first aspect enables identifying and/or authentication of authorized aerosol generating articles by electronic means.
  • a capacitive-coupled RFID tag not having an antenna may be particularly advantageous in that it may be readily attached to non-planar surfaces of an aerosol-generating article.
  • the RFID tag may be provided on the hollow spacer tube. This may be advantageous in that the provision of the RFID tag may be incorporated directly into the manufacture of the hollow spacer tube, independent of any plug wrappers and tipping papers, thereby allowing the aerosol-generating article to be manufactured in a more efficient manner. More preferably, the RFID tag may be provided on an outer surface of the hollow spacer tube or inside a thickness of the hollow spacer tube. This may allow the RFID tag to be protected from heat coming from the aerosol travelling inside the hollow cavity of the hollow spacer tube.
  • the aerosol-generating article may further comprise at least one paper wrapper wrapped around a length of the hollow spacer tube and the RFID tag may be provided on the at least one paper wrapper.
  • the tag may be hidden from sight or covered in the assembled aerosol-generating article. This in turn may advantageously help to protect the RFID tag from damage caused by rubbing or other external contact. Furthermore, this may advantageously help to protect the RFID tag from attempted forgery or tampering.
  • the use of an RFID tag for identifying and/or authenticating of an authorized aerosol-generating article may be facilitated by simply wrapping an aerosol-generating article with a paper wrapped having an RFID tag provided thereon. As such, a need to modify or alter an existing process for manufacturing an aerosol-generating article may be reduced or avoided.
  • the RFID tag may be provided inside a thickness of the at least one paper wrapper or between the at least one paper wrapper and the hollow spacer tube. This may allow the RFID tag to be hidden from sight or covered in the assembled aerosol-generating article. This in turn may advantageously help to protect the RFID tag from damage caused by rubbing or other external contact. Furthermore, this may advantageously help to protect the RFID tag from attempted forgery or tampering.
  • the hollow spacer tube is formed of rolled paper.
  • Rolled paper may provide advantageous heat insulating properties as well as a lower materials cost.
  • the hollow spacer tube may be formed from a non-porous paper, which may help to ensure that the hollow spacer tube is sufficiently rigid and durable.
  • the RFID tag may be positioned between two layers of the rolled paper. In this configuration, the tag can be physically protected from inside heat and from external physical damage.
  • the capacitive coupled RFID tag is preferably positioned at a close distance from outer surface of the aerosol generating article, e.g., the external side of the wrapper, preferably at a distance shorter than 200 microns, preferably between 30 and 200 microns, most preferably between 30 and 150 microns. At such distance, the readable position of the tag within the RF field generated by the electrodes can be more easily secured.
  • the present inventors have further devised, in accordance with a second aspect herein, an inhalation device for use with an aerosol-generating article according to the first aspect.
  • the inhalation device comprises a heating cavity configured to receive therein at least a part of the aerosol-generating article and comprising an opening for inserting said part of the aerosol-generating article.
  • the inhalation device further comprises a heating element configured to heat the aerosol-generating material section of the aerosol-generating article received in the heating cavity and an RFID reader comprising at least a pair of reading electrodes configured to provide a radio frequency signal able to read the capacitive-coupled RFID tag.
  • the reading electrodes are arranged at or next to the opening of the heating cavity and away from the heating element.
  • the application of heat by the heating element of the inhalation device is focused within the heating cavity in which the aerosol-generating article is received.
  • the heating cavity generally has a relatively high temperature that may be unsuitable for placement of the RFID reader or that prevents the detection of the RFID tag.
  • the inhalation device of the second aspect ensures that the RFID reader is not exposed to temperatures susceptible of tampering the reading electrodes integrity or to alter or perturbate the electric field generated for reading a capacitive-coupled tag arranged in an aerosol generating article according to the first aspect inserted in the heating cavity. Furthermore, the inhalation device of the second aspect ensures that the reading electrodes may still be positioned in proximity to the aerosol-generating article (e.g. within 1mm to 2mm thereof) and, as such, the RFID tag provided thereon, because the reading electrodes are provided at or next to the opening of the heating cavity through which the aerosol-generating article is inserted. As such, it becomes possible for the RFID reader to operate correctly.
  • the inhalation device enables identifying and/or authentication of authorized aerosol-generating articles by electronic means.
  • the reading electrodes may be arranged on or within a wall of the heating cavity adjacent to the opening of the heating cavity. This may be advantageous in that the reading electrodes can be made integral to the body of the cavity, i.e. by casting, soldering or laser sintering (or other additive manufacturing technique) in place, which may allow for greater integration, reliability and compactness in the device. Furthermore, this may reduce or avoid a need for additional fitting pieces, as it is only necessary to, for example, solder or plug electrical connectors to the controller of the inhalation device.
  • the reading electrodes may be arranged in a portion of the inhalation device extending from the opening of the heating cavity.
  • the portion may be in the form of a fitting piece (e.g. formed of annular seal) or plug onto which the electrodes are provided (e.g. by over-molding, deposition, additive manufacturing), which may be fit upon assembly of the device.
  • This may allow the portion to be replaced if necessary and/or may avoid or reduce an increase in the complexity of manufacturing of the heating cavity.
  • the reading electrodes may be electrode rings spaced from each other along a direction parallel to a longitudinal direction of the cavity.
  • the use of such electrode rings may help to ensure that the RFID tag on an aerosol-generating article received in the heating cavity may be aligned with and read by the RFID reader, regardless of the angular orientation of the aerosol-generating article when it is received in the heating cavity.
  • the electrodes may be spaced from each other by a distance comprised between about 0.2 to about 5 mm, preferably between about 0.5 to 2 mm.
  • the reading electrodes may be formed within a band of insulating material. This may help to prevent heat exchange by conduction between the walls of the heating cavity and the reading electrodes. This, in turn, may help to avoid heat contamination of the reading of the RFID tag of an aerosol-generating article received in the heating cavity by the RFID reader.
  • the reading electrodes electrode rings may be formed of a first electrically conductive metal and the wall of the heating cavity is formed of a second thermally conductive metal different from the first electrically conductive metal. This may help to prevent heat exchange by conduction between the walls of the heating cavity and the reading electrodes. This, in turn, may help to avoid heat contamination of the reading of the RFID tag of an aerosol-generating article received in the heating cavity by the RFID reader.
  • an inhalation system comprising an aerosol-generating article according to the first aspect and an inhalation device according to the second aspect.
  • a longitudinal position of the RFID tag of the aerosol-generating article corresponds to a longitudinal position of the RFID reader of the inhalation device when the aerosol-generating material section of aerosol-generating article is received in the heating cavity of the inhalation device.
  • the inhalation device further comprises a control unit connected to the RFID reader and configured to authenticate the aerosol-generating article and/or control operation of the heating element based on information received, via the RFID reader, from the RFID tag of the aerosol-generating article.
  • the inhalation system according to the third aspect ensures that the RFID tag of the aerosol-generating article and the RFID reader of the inhalation device are appropriately aligned when the aerosol-generating material section of aerosol-generating article is received in the heating cavity of the inhalation device. As such, it becomes possible for the RFID reader to read the RFID tag.
  • the inhalation system allows the aerosol-generating article to be authenticated and/or operation of the heating element to be controlled based on information received by the inhalation device, via the RFID reader, from the RFID tag of the heated- tobacco stick.
  • the inhalation system enables identifying and/or authentication of authorized aerosol-generating articles by electronic means.
  • the present inventors have further devised, in accordance with a fourth aspect herein, a method of manufacturing an aerosol-generating article according to the first aspect.
  • the method comprises providing, on a paper web, a capacitive-coupled RFID tag not having an antenna.
  • the method further comprises winding the paper web into a form of a hollow tube.
  • the paper may be wound in such a manner that the capacitive-coupled RFID tag becomes inserted between two layers of the paper web. As a result, the tag becomes protected during the next manufacturing operations.
  • the capacitive-coupled RFID tag may also be affixed on the outer surface of the hollow tube or on the surface of the paper web intended to form the outer surface of the paper tube after rolling.
  • the method according to the fourth aspect allows an aerosol-generating article according to the first aspect to be manufactured. In this way, the method according to the fourth aspect enables identifying and/or authentication of authorized aerosol-generating articles by electronic means.
  • the method according to the fourth aspect is advantageous in that it incorporates the provision of the capacitive-coupled RFID tag directly into the manufacture of the hollow spacer tube, independent of the plug wrappers and tipping papers. Accordingly, the method according to the fourth aspect allow an aerosol-generating article according to the first aspect to be manufactured in a more efficient manner.
  • This may also help to ensure that the capacitive-coupled RFID tag is hidden from sight in the assembled aerosol-generating article. This in turn may advantageously help to protect the capacitive-coupled RFID tag from damage caused by rubbing or other external contact. Furthermore, this may advantageously help to protect the capacitive-coupled RFID tag from attempted forgery or tampering.
  • providing the capacitive-coupled RFID tag on the paper web may comprise any one of depositing, adhering or printing the capacitive-coupled RFID tag on the paper web.
  • the method according to the fourth aspect may further comprise providing, on the paper web, a plurality of capacitive- coupled RFID tags additional to the capacitive-coupled RFID tag, and cutting the paper web into segments such that each segment has a capacitive-coupled RFID tag provided thereon.
  • FIGS 1A and IB are schematic illustrations of an aerosol-generating article, according to an aspect herein.
  • FIGS 2A, 2B, and 2C are schematic illustrations of an inhalation device, according to an aspect herein.
  • Figure 3 is a schematic illustration of an alternative inhalation device, according to an aspect herein.
  • Figure 4 is a flow diagram showing a process by which an aerosol generating article 100 may be manufactured, in accordance with an aspect herein.
  • Figures 1A and IB are schematic illustrations of an aerosol-generating article 100, according to an aspect herein.
  • Figure 1A shows an exploded view of the elements of the aerosol-generating article
  • Figure IB illustrates the outer appearance of the aerosol generating article 100.
  • the aerosol-generating article 100 is an aerosol-generating article for use in an inhalation device, such as inhalation device 200 shown in Figures 2A to 2C and inhalation device 200' shown in Figure 3.
  • inhalation device 200 shown in Figures 2A to 2C and inhalation device 200' shown in Figure 3.
  • the aerosol-generating article 100 comprises an aerosol-generating material section 101 comprising a charge of an aerosol-generating material.
  • the aerosol-generating article 100 further comprises a filter section comprising at least one filter element 103, 104 and a hollow spacer tube 102 arranged between the aerosol-generating material section
  • the filter section is composed of the combination of elements 102, 103, and 104. That is, the aerosol-generating article 100 may, as in the present example embodiment, comprise two filter elements 103, 104.
  • filter element 103 may, as in the present example embodiment, be constituted of a tubular filter element (also called "centre hole filter segment").
  • the filter element 104 may, as in the present example embodiment, be an acetate filter rod.
  • either of filter elements 103, 104 may be any other suitable type of filter element known in the art.
  • the aerosol-generating article 100 may comprise a single filter element or three or more filter elements.
  • the filters 103, 104 may be provided at a so called "mouth end" of the aerosol-generating article 100, that is the end at which the user inhales a generated aerosol.
  • the aerosol-generating article 100 may, as in the present example embodiment, be a so called "heated-tobacco stick” (also referred to as a “heatable tobacco stick”, “a tobacco stick”, etc.).
  • the aerosol-generating material of the aerosol generating material section 101 may, as in the present example embodiment, comprise a tobacco rod formed, in part at least, of reconstituted tobacco.
  • aerosol-generating material section 101 may, for example, comprise as the aerosol-generating material tobacco powder and/or a gel-like composition in a capsule or pod.
  • the aerosol-generating article 100 may be for use in a so-called Heat-not-Burn (HNB) device or a heated tobacco product (HTP) device.
  • Heat-not-Burn devices may contain tobacco that is heated directly by a heating element (e.g., a tubular heater to surround a tobacco stick) to create vapor.
  • a heating element e.g., a tubular heater to surround a tobacco stick
  • Another type of heated tobacco device contains tobacco (e.g., tobacco powder in a capsule or pod) which is heated indirectly to create vapor by direct electrical heating of a liquid contained within the device or a replaceable cartridge.
  • the aerosol-generating material may be provided as a liquid that contains, by way of non-limiting example, nicotine and/or flavours (e.g. mint, menthol, herbs, and/or fruit flavours) to create vapor by direct electrical heating of a liquid and the aerosol-generating material section 101 may comprise a reservoir for holding the liquid.
  • nicotine and/or flavours e.g. mint, menthol, herbs, and/or fruit flavours
  • the aerosol-generating material comprised in the aerosol generating material section 101 may further include additional substances, such as glycerin, propylene glycol and/or water, to aid formation of an aerosol.
  • additional substances such as glycerin, propylene glycol and/or water
  • the aerosol-generating material may comprise reconstituted tobacco and glycerin.
  • the hollow spacer tube 102 may, as in the present example embodiment, be formed of rolled paper.
  • the hollow spacer tube 102 may be formed from a non-porous paper, which may help to ensure that the hollow spacer tube 102 is sufficiently rigid and durable.
  • the hollow spacer tube 102 may be formed from any other suitable material.
  • the hollow spacer tube 102 may, as in the present example embodiment, not be made of filtration material, such as cellulose acetate.
  • the hollow spacer tube 102 does not function to filter an aerosol generated by heating the aerosol-generating material comprised in the aerosol-generating material section 101. As such, there is minimal heat exchange by conduction between the hollow spacer tube and the generated aerosol as the generated aerosol passes through the hollow spacer tube. Therefore, the temperature at or towards the outer surface of the hollow spacer tube 102 may remain relatively low.
  • the hollow spacer tube 102 may, as in the present example embodiment, provide a cooling function of allowing a generated aerosol to cool as it travels along the length of the hollow spacer tube 102 from the aerosol generating material section 101 towards the at least one filter element 103, 104.
  • the aerosol gradually cools down from the upstream end towards its downstream end of the tube. Therefore, the hollow spacer tube is preferably long enough to allow the aerosol temperature to reduce sufficiently.
  • the length of the spacer tube may be, for example, between 10 and 25 mm, preferably between 15 and 22 mm.
  • the hollow spacer tube 102 may, as in the present example embodiment, include ventilation holes 107 along its length. This may contribute by dilution with ambient air to the cooling of the aerosol and to control the release rate of the constituents.
  • the hollow spacer tube 102 may, as in the present example embodiment, have an insulating or isolating function by reducing heat exchange with the aerosol through the walls of the hollow spacer tube 102.As such, the outer surface of the hollow spacer tube 102 may gradually decrease the temperature of the aerosol along its length.
  • the aerosol-generating article 100 may, as in the present example embodiment, further comprise at least one paper wrapper 105, 106 wrapped around a length of the aerosol-generating article 100.
  • the aerosol generating article 100 comprises a first paper wrapper 105 and a second paper wrapper 106.
  • the first paper wrapper 105 may, as in the present example embodiment, be wrapped around the length of the at least one filter elements 103, 104 and may be referred to as a combining plug wrap paper.
  • the second paper wrapper 106 may, as in the present example embodiment, be wrapped around the length of the at least one filter elements 103, 104, the length L of the hollow spacer tube 102 and a portion of the length of the aerosol-generating material section 101 and may be referred to as a tipping paper.
  • the filter elements may further be wrapped by individual plug wraps (not shown) for proper cutting and form integrity of the segments before being wrapped by the first paper wrapper 105.
  • the aerosol-generating article 100 may not comprise any paper wrapper or may comprise a single paper wrapper wrapped around a length of the aerosol-generating article 100.
  • the aerosol-generating article 100 may comprise three or more paper wrapper wrapped around a length of the aerosol-generating article 100.
  • An RFID tag 108 is arranged on the aerosol-generating article 100 along a length L of the hollow spacer tube 102.
  • the RFID tag 108 is a capacitive-coupled RFID tag not having an antenna.
  • arrow 20 in Figure 1A represents a longitudinal axis of the aerosol-generating article 100 and of the hollow spacer tube 102.
  • the aerosol-generating article 100 has an elongated shape extending along the longitudinal axis.
  • a portion of the elongated shape of the aerosol-generating article 100 is formed by the elongated shape of the hollow spacer tube 102 which also extends along the longitudinal axis.
  • the extent or length of the hollow spacer tube 102 in the overall length of the aerosol-generating article 100 is shown as a hashed section and indicated by reference sign L in Figure IB.
  • the RFID tag 108 is arranged on the aerosol-generating article 100 along a length L of the hollow spacer tube 102 such that the longitudinal location of the RFID tag 108 along the longitudinal axis is within the extent of the hollow spacer tube 102 along the longitudinal axis. That is, it is not necessary that the RFID tag 108 is directly attached to the hollow spacer tube 102.
  • the length L may, for example, correspond to approximately one third of the overall length of the aerosol-generating article 100.
  • the length of the aerosol-generating article 100 may be approximately 50mm to 60 mm and the length L of the hollow spacer tube 102 may be approximately 20mm.
  • the RFID tag 108 may, as in the present example embodiment, be provided on the hollow spacer tube (for example, attached to or formed directly on or in the hollow spacer tube 102). As shown in Figure 1A, the RFID tag 108 may, as in the present example embodiment, be provided on an outer surface of the hollow spacer tube 102.
  • the RFID tag 100 may be deposited, adhered or printed on the material from which the hollow spacer tube 102 is formed before or after the material is formed into a hollow tube shape.
  • the RFID tag 108 may be attached to the hollow spacer tube 102 by any suitable means known in the art.
  • the RFID tag 108 may be provided inside a thickness of the hollow spacer tube 102. That is, the RFID tag 108 may be away from an internal surface of the hollow spacer tube 102 but beneath an outer surface of the hollow spacer tube 102.
  • the hollow spacer tube 102 is formed of rolled paper
  • one or more layers of paper may be provided between the RFID tag 108 and the outer surface of the hollow spacer tube 102.
  • the RFID tag 108 may be provided on the at least one paper wrapper 106.
  • Such a configuration is indicated by reference sign 108' in Figure 1A.
  • the RFID tag 108 may preferably be provided inside the a thickness of at least one paper wrapper 106 or between the at least one paper wrapper 106 and the hollow spacer tube 102.
  • the RFID tag 100 may be deposited, adhered or printed on the at least one paper wrapper 106.
  • the RFID tag 108 may be attached to the at least one paper wrapper 106 by any suitable means known in the art.
  • the RFID tag 108 is hidden from sight in the assembled aerosol-generating article 100.
  • the RFID tag 108 is not visible in the assembled aerosol-generating article 100 as it is covered by the second paper wrapper 106.
  • this may advantageously help to protect the RFID tag 108 from damage caused by rubbing or other external contact.
  • this may advantageously help to protect the RFID tag 108 from attempted forgery or tampering.
  • the RFID tag 108 may be provided inside the at least one paper wrapper.
  • the RFID tag 108 may be provided inside the hollow spacer tube.
  • the RFID tag 108 may be provided under an outermost layer of paper.
  • the RFID tag 108 may, as in the present example embodiment, be a capacitive-coupled RFID tag, i.e., not having an antenna, such as those described in WO 2020/148550 A1.
  • FIGS 2A, 2B, and 2C are schematic illustrations of an inhalation device 200, according to an aspect herein.
  • the inhalation device 200 is a handheld device that is configured to generate an aerosol (that is, a vapour) that may be inhaled by a user of the inhalation device 200.
  • an aerosol that is, a vapour
  • the inhalation device 200 may, as in the present example embodiment, be a so-called "HNB” device as discussed above.
  • the inhalation device 200 may be a so-called “e-cigarette” device.
  • E-cigarette devices contain no tobacco and heat a liquid that contains, by way of non limiting example, nicotine and/or flavours to create vapor by direct or indirect electrical heating of a liquid contained within a reservoir in the device or a replaceable cartridge.
  • the inhalation device 200 comprises a heating cavity 203 (shown in Figure 2B) configured to receive therein at least a part of the aerosol generating article, such as the aerosol-generating article 100 shown in Figures 1A and IB, and comprising an opening 201 for inserting said part of the aerosol-generating article 100.
  • the at least a part of the aerosol-generating article 100 received in the heating cavity 203 may include at least the aerosol generating material section 101 of the aerosol-generating article 100.
  • Figures 2A and 2C show the inhalation device 200 where the aerosol generating article 100 has been inserted though the opening 201 and is received in the heating cavity 103.
  • Figure 2B shows the inhalation device 200 where no aerosol-generating article is received in the heating cavity 203.
  • the inhalation device 200 may, as in the present example embodiment, comprise a covering element, such as slideable covering element 202 configured to cover the opening 201 when no aerosol generating article is received in the heating cavity 203. This may advantageously protect the reading electrodes 205a, 205b and other internal components of the inhalation device 100 from damage or dirt.
  • a covering element such as slideable covering element 202 configured to cover the opening 201 when no aerosol generating article is received in the heating cavity 203. This may advantageously protect the reading electrodes 205a, 205b and other internal components of the inhalation device 100 from damage or dirt.
  • the inhalation device 200 further comprises a heating element 204 (shown in Figures 2B and 2C) configured to heat the aerosol-generating material section 101 of the aerosol-generating article 100 received in the heating cavity 203.
  • a heating element 204 shown in Figures 2B and 2C configured to heat the aerosol-generating material section 101 of the aerosol-generating article 100 received in the heating cavity 203.
  • the heating element 204 may, as in the present example embodiment, be arranged to surround a longitudinal section of the wall of the heating cavity.
  • the heating element 204 may have, for example, a tubular or similar shape.
  • the heating element 204, together with the heating cavity 203, may provide an "oven", such that the inhalation device 200 is configured as an oven-type heating device.
  • the heating element 204 may be a blade or needle type heating element that is inserted into the aerosol-generating material of the aerosol-generating material section 101 when the aerosol-generating article 100 is received in the heating cavity 203.
  • the inhalation device 200 may comprise an insulation layer 204a of the heating element 204 to isolate rest of the inhalation device 200 from the heat generated by the heating element 204.
  • the inhalation device 200 further comprises an RFID reader comprising at least a pair of reading electrodes 205a, 205b configured to provide a radio frequency signal able to read the capacitive-coupled RFID tag.
  • the reading electrodes 205a, 205b are arranged at or next to the opening 201 of the heating cavity 203 and away from the heating element 204.
  • the pair of reading electrodes 205a, 205b may, as in the present example embodiment, be configured to generate a radio frequency signal able to provide a modulated electric field to read a capacitive-coupled RFID tag, such as RFID tag 102 of aerosol-generating article 100.
  • the reading electrodes 205a, 205b are arranged at the opening 201 of the heating cavity 203 in that the reading electrodes 205a, 205b are located close to or adjacent to the opening 201. As such, it is not necessary that the reading electrodes 205a, 205b are positioned exactly at, for example, a furthest extent of a wall of the heating cavity 203.
  • the reading electrodes 205a, 205b may, as in the present example embodiment, be positioned within 5 mm or less of the opening 201.
  • the reading electrodes 205a, 205b may, as in the present example embodiment, be are arranged away from the heating element 204 in that the reading electrodes 205a, 205b do not overlap with the heating element along a length of the heating cavity.
  • the reading electrodes 205a, 205b are preferably a distance of at least 2-5 mm from the closest portion of the heating element 204.
  • the reading electrodes 205a, 205b may, as in the present embodiment, be arranged in a portion 206 of the inhalation device extending from the opening 201 of the heating cavity 203.
  • the portion 206 may, as in the present example embodiment, be in the form of a pre-tube outside the heating cavity 203 and extending from the opening 201.
  • the reading electrodes 205a, 205b may be arranged on or within a wall of the heating cavity adjacent to the opening of the heating cavity.
  • Figure 3 is a schematic illustration of an alternative inhalation device 200', according to an aspect herein.
  • the reading electrodes 205a, 205b may, as in the example embodiment shown in Figure 3, be provided in a fitting seal/ring element 209 inserted into the opening in snug fit fashion on the walls of the heating cavity 203.
  • the description of all other elements of inhalation device 200 of Figures 2A to 2C applies equally to the inhalation device 200' of Figure 3.
  • the reading electrodes 205a, 205b may, as in the example embodiments of either of Figures 2A to 2C or 3, be formed within a band of insulating material.
  • the insulating material may be a thermally insulating or thermally resistant plastic (e.g. PEEK) or a rubber material (e.g. silicone rubber).
  • the reading electrodes 205a, 205b may be formed of a first electrically conductive metal such as, for example, copper, silver or gold.
  • the wall of the heating cavity 203 may preferably, as in the present example embodiment, be formed of a second thermally conductive metal different from the first electrically conductive metal, such as aluminium or stainless steel.
  • the reading electrodes 205a, 205b may, as in the present example embodiment, be electrode rings spaced from each other along a direction parallel to a longitudinal direction of the cavity.
  • the electrodes rings may extend around the opening 201 of the heating cavity 203 so as to partially or fully encircle the opening 201. The use of such electrode rings may help to ensure that the RFID tag 108 on the aerosol-generating article 100 may be aligned with and read by the RFID reader, regardless of the angular orientation of the aerosol-generating article 100 when it is received in the heating cavity 203.
  • the reading electrodes 205a, 205b may be any other suitable type of electrode.
  • the inhalation device 200 comprises two reading electrodes 205a, 205b.
  • the inhalation device 200 may comprise more than two reading electrodes.
  • the reading electrodes may comprise two or more pairs of electrodes arranged at different respective angular positions at the opening 201 of the heating cavity 203. Such a configuration may help to ensure that the RFID tag 108 on the aerosol generating article 100 may be aligned with and read by the RFID reader, regardless of the angular orientation of the aerosol-generating article 100 when it is received in the heating cavity 203.
  • the reading electrodes 205a, 205b may, as in the present example embodiment, each have a thickness in the longitudinal direction of less than or equal to 2mm, e.g. approximately 0.01mm to 2mm.
  • the reading electrodes 205a, 205b may, as in the present example embodiment, be spaced apart in the longitudinal direction by a distance of less than or equal to 5mm, e.g. approximately 0.2mm to 5mm, preferably between about 0.5 to 2 mm.
  • the aerosol-generating article 100 and the inhalation device 200' of Figure 3 also together provide an insulation system.
  • insulation system 10 applies equally to such an inhalation system.
  • a longitudinal position of the RFID tag 108 of the aerosol-generating article 100 corresponds to a longitudinal position of the RFID reader of the inhalation device 200 when the aerosol-generating material section 101 of aerosol-generating article 100 is received in the heating cavity 203 of the inhalation device 200.
  • the aerosol-generating article 100 may, as in the present example embodiment, be detachable from the inhalation device 200 such that it may be readily replaced.
  • the aerosol generating article 200 may be detachably connected to the inhalation device 1 by any suitable means, e.g. via an interference fit, a snap fit, a screw fit, a bayoneted fit or a magnetic fit.
  • the inhalation device 200 may, as in the present example embodiment, further comprise a control unit 208 connected to the RFID reader and configured to authenticate the aerosol-generating article 100 and/or control operation of the heating element 204 based on information received, via the RFID reader, from the RFID tag 108 of the aerosol generating article 100.
  • a control unit 208 connected to the RFID reader and configured to authenticate the aerosol-generating article 100 and/or control operation of the heating element 204 based on information received, via the RFID reader, from the RFID tag 108 of the aerosol generating article 100.
  • Authenticating the aerosol-generating article 100 may, as in the present example embodiment, comprise a determination of whether the aerosol generating article 100 received in the heating cavity 203 of the inhalation device 200 is an authorised aerosol-generating article (e.g. one produced by the same manufacturer as the inhalation device 100 or one which has undergone a particular quality control).
  • authentication may be based on information stored in the RFID tag 108, such as an identifier or code, that may be provided to the RFID reader by the RFID tag 108 when the RFID reader applies an RF electric field to the RFID tag 108.
  • authenticating the aerosol-generating article 100 may, as in the present example embodiment, further comprise unlocking the inhalation device 200 for use only in a case where the aerosol-generating article 100 is successfully authenticated.
  • Unlocking the inhalation device 200 may, for example, comprise the control unit 208 controlling the power supply unit 207 to provide power to the heating element 204 so that an aerosol may be generated.
  • unlocking the aerosol generation device may comprise the control unit 208 controlling an I/O unit such as optional button 203 shown in Figure 2A to allow control of the inhalation device 200 to generate an aerosol by a user.
  • control unit 208 may, for example, control the power supply unit 207 to prevent supply of power to the heating element 204, control an I/O unit such as optional button 203 shown in Figure 2A to prevent input by the user, and/or performing control to power off the inhalation device 200.
  • Controlling operation of the heating element 204 may, as in the present example embodiment, comprise controlling supply of voltage or current to the heating element 204 to control turn the heating element on or off or to control the amount of heat generated by (i.e. control the temperature of) the heating element 204.
  • control unit 208 may comprise one or more processing units (e.g. a central processing unit (CPU) such as a microprocessor, or a suitably programmed field programmable gate array (FPGA) or application-specific integrated circuit (ASIC)).
  • processing units e.g. a central processing unit (CPU) such as a microprocessor, or a suitably programmed field programmable gate array (FPGA) or application-specific integrated circuit (ASIC)
  • control unit 207 may be provided with any memory sections (not shown) necessary to perform its function of controlling operation of the inhalation device 200.
  • Such memory sections may be provided as part of (comprised in) the control unit 207 (e.g. integrally formed or provided on the same chip) or provided separately, but electrically connected to the control unit 207.
  • the memory sections may comprise both volatile and non-volatile memory resources, including, for example, a working memory (e.g.
  • the memory sections may include an instruction store (e.g. a ROM in the form of an electrically-erasable programmable read-only memory (EEPROM) or flash memory) storing a computer program comprising the computer-readable instructions which, when executed by the control unit 207, cause the control unit 207 to perform various functions.
  • an instruction store e.g. a ROM in the form of an electrically-erasable programmable read-only memory (EEPROM) or flash memory
  • EEPROM electrically-erasable programmable read-only memory
  • flash memory storing a computer program comprising the computer-readable instructions which, when executed by the control unit 207, cause the control unit 207 to perform various functions.
  • the control unit 208 may, as in the present example embodiment , be configured to control operation of the inhalation device.
  • the control section 11 may control supply of power to the heating element 204 and charging of the power supply unit 207.
  • the control section 11 may optionally control supply of power to, and receive and process signals from any sensors or I/O units (e.g. optional button 203 shown in Figure 2A) included in the inhalation device 200 and control operation of the inhalation device 200 based on the received signals.
  • the inhalation device 200 may, as in the present example embodiment, further comprise, as shown in Figures 2B and 2C, a power supply unit 207.
  • the power supply unit 207 may, as in the present example embodiment, be a rechargeable power supply.
  • the power supply unit 207 may, as in the present example embodiment, be a lithium ion battery.
  • the power supply unit 207 may be, for example, a chargeable secondary battery or an electric double layer capacitor (EDLC).
  • EDLC electric double layer capacitor
  • the application of heat by the inhalation device 200 is generally focused on the aerosol-generating material section 101 comprising the aerosol-generating material in order to generate an aerosol.
  • the aerosol-generating material section 101 generally has a relatively high temperature that may be unsuitable for placement of the RFID tag 108.
  • the hollow spacer tube 102 is arranged between the aerosol generating material section 101 and the at least one filter element 103, 104. Unlike the at least one filter element 103, 104, the hollow spacer tube 102 does not function to filter the generated aerosol. As such, there is minimal heat exchange by conduction between the hollow spacer tube 102 and the generated aerosol as the generated aerosol passes through the hollow spacer tube 102 and the temperature of the hollow spacer tube 102 remains relatively low.
  • the RFID tag 108 may be ensured that the RFID tag 108 is not exposed to excessively high temperatures and, as such may operate correctly, thereby enabling identifying and/or authentication of authorized aerosol generating articles by electronic means.
  • the application of heat by the heating element 204 of the inhalation device 200 is focused within the heating cavity 203 in which the aerosol-generating article 100 is received.
  • the heating cavity 203 generally has a relatively high temperature that may be unsuitable for placement of the RFID reader.
  • the reading electrodes 205a, 205b may still be positioned in proximity to the aerosol-generating article 100 (e.g. within 1mm to 2mm thereof) and, as such, the RFID tag 108 provided thereon, because the reading electrodes 205a, 205b are provided at or next to the opening 201 of the heating cavity 203 through which the aerosol-generating article 100 is inserted. As such, it becomes possible for the RFID reader to operate correctly.
  • the inhalation device 200 also contributes to facilitating identifying and/or authentication of authorized aerosol-generating articles by electronic means.
  • the present inventors have further recognised that it may be particularly advantageous to manufacture aerosol-generating article in which the hollow spacer tube 102 is formed from rolled paper.
  • Figure 4 is a flow diagram showing a process by which such an aerosol generating article may be manufactured, in accordance with an aspect herein.
  • a capacitive-coupled RFID tag is provided on a paper web.
  • the capacitive-coupled RFID tag may, as in the present example embodiment, be the RFID tag 108 described above in relation to Figure 1. Additionally or alternatively, the paper web may, as in the present example embodiment, comprise a non-porous paper, which may help to ensure that the resulting hollow spacer tube is sufficiently rigid and durable.
  • Providing the capacitive-coupled RFID tag on the paper web may comprise any one of depositing, adhering or printing the capacitive-coupled RFID tag on the paper web.
  • the capacitive-coupled RFID tag may be attached to the paper web by any suitable means known in the art.
  • the paper web is wound into a form of a hollow tube.
  • this hollow tube may serve as a hollow spacer tube in an aerosol-generating article.
  • the process of Figure 4 may be adapted to allow multiple hollow spacer tubes to be produced from a single paper web.
  • the process of Figure 4 includes option additional process steps S12 and S16.
  • a plurality of capacitive-coupled RFID tags additional to the capacitive-coupled RFID tag are provided, on the paper web.
  • Each of the plurality of capacitive-coupled RFID tags may be provided on the paper web by any of the means discussed above in relation to process step S10.
  • Process step S12 may be performed prior to process step S14.
  • the paper web is cut into segments such that each segment has a capacitive-coupled RFID tag provided thereon.
  • Process step S16 may preferably be performed after process step S14 such that the paper web has already been wound into a hollow tube, which hollow tube is then cut into segments. Alternatively, process step S16 may be performed before process step S14 such that the paper web is cut into segments prior to winding and process step S14 comprises winding each segment into a hollow tube.
  • the process of Figure 4 may further comprise any additional steps required to manufacture the assembled aerosol-generating article, such as aerosol-generating article shown in Figure IB.
  • the process of Figure 4 may further comprise steps of obtaining an aerosol generating material section, obtaining one or more filter elements, arranging and attaching the hollow spacer tube between the aerosol generating material section and the one or more filter elements, and/or wrapping the aerosol-generating article in one or more paper wrappers.
  • the process of Figure 4 is advantageous in that it incorporates the provision of the capacitive-coupled RFID tag directly into the manufacture of the hollow spacer tube, independent of the plug wrappers and tipping papers. Accordingly, the process of Figure 4 may allow the aerosol-generating article of the present disclosure to be manufactured in a more efficient manner.
  • This may also help to ensure that the capacitive-coupled RFID tag is hidden from sight in the assembled aerosol capacitive-coupled -generating article. This in turn may advantageously help to protect the RFID tag from damage caused by rubbing or other external contact. Furthermore, this may advantageously help to protect the capacitive-coupled RFID tag from attempted forgery or tampering.

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  • General Physics & Mathematics (AREA)
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Abstract

Article de génération d'aérosol destiné à être utilisé dans un dispositif d'inhalation, cet article de génération d'aérosol comprenant une section de matériau de génération d'aérosol comprenant une charge d'un matériau de génération d'aérosol ; une section de filtre comprenant au moins un élément de filtre et un tube d'espacement creux disposé entre la section de matériau de génération d'aérosol et le ou les éléments de filtre, une étiquette RFID étant disposée sur l'article de génération d'aérosol le long du tube d'espacement creux et l'étiquette RFID étant une étiquette RFID à couplage capacitif ne comprenant pas d'antenne.
PCT/EP2022/061781 2021-05-05 2022-05-03 Article de génération d'aérosol pourvu d'une étiquette rfid à couplage capacitif WO2022233827A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3075269A2 (fr) * 2015-04-02 2016-10-05 PT. Gudang Garam Tbk. Tige segmentée permettant de générer des aérosols et procédé de fabrication d'une tige segmentée pour générer des aérosols
WO2019185747A1 (fr) * 2018-03-29 2019-10-03 Nicoventures Trading Limited Appareil de génération d'aérosol à partir d'un milieu aérosolisable, article de milieu aérosolisable et procédé de fonctionnement d'un appareil de génération d'aérosol
EP3599574A1 (fr) * 2018-07-27 2020-01-29 STMicroelectronics Design and Application s.r.o. Antenne et système de communication rf
WO2020148550A1 (fr) 2019-01-17 2020-07-23 Frisense Limited Étiquette électronique
WO2020204039A1 (fr) * 2019-03-31 2020-10-08 株式会社 東亜産業 Élément de support pour cartouche d'arôme et cartouche d'arôme dotée de ce dernier

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Publication number Priority date Publication date Assignee Title
EP3075269A2 (fr) * 2015-04-02 2016-10-05 PT. Gudang Garam Tbk. Tige segmentée permettant de générer des aérosols et procédé de fabrication d'une tige segmentée pour générer des aérosols
WO2019185747A1 (fr) * 2018-03-29 2019-10-03 Nicoventures Trading Limited Appareil de génération d'aérosol à partir d'un milieu aérosolisable, article de milieu aérosolisable et procédé de fonctionnement d'un appareil de génération d'aérosol
EP3599574A1 (fr) * 2018-07-27 2020-01-29 STMicroelectronics Design and Application s.r.o. Antenne et système de communication rf
WO2020148550A1 (fr) 2019-01-17 2020-07-23 Frisense Limited Étiquette électronique
WO2020204039A1 (fr) * 2019-03-31 2020-10-08 株式会社 東亜産業 Élément de support pour cartouche d'arôme et cartouche d'arôme dotée de ce dernier

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Title
PACHLER W. ET AL.: "An On-Chip Capacitive Coupled RFID Tag", THE 8TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION, 2 December 2014 (2014-12-02) - 2 December 2014 (2014-12-02), pages 3461 - 3465, XP002804577, Retrieved from the Internet <URL:https://ieeexplore.ieee.org/document/6902573> [retrieved on 20211019] *

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