WO2024018373A1 - Procédé de production d'une bande continue de matériau reconstitué d'origine végétale contenant des éléments métalliques pouvant être chauffés par induction - Google Patents

Procédé de production d'une bande continue de matériau reconstitué d'origine végétale contenant des éléments métalliques pouvant être chauffés par induction Download PDF

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Publication number
WO2024018373A1
WO2024018373A1 PCT/IB2023/057303 IB2023057303W WO2024018373A1 WO 2024018373 A1 WO2024018373 A1 WO 2024018373A1 IB 2023057303 W IB2023057303 W IB 2023057303W WO 2024018373 A1 WO2024018373 A1 WO 2024018373A1
Authority
WO
WIPO (PCT)
Prior art keywords
metallic powder
strips
powder strips
continuous
web
Prior art date
Application number
PCT/IB2023/057303
Other languages
English (en)
Inventor
Angelo Li Vigni
Original Assignee
Comas Costruzioni Macchine Speciali S.P.A.
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 Comas Costruzioni Macchine Speciali S.P.A. filed Critical Comas Costruzioni Macchine Speciali S.P.A.
Publication of WO2024018373A1 publication Critical patent/WO2024018373A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • 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
    • A24D1/20—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
    • A24F40/46—Shape or structure of electric heating means
    • A24F40/465—Shape or structure of electric heating means specially adapted for induction heating

Definitions

  • This invention relates to a method for making a continuous web of reconstituted material of plant origin, in particular, tobacco, as well as a method for making rod-shaped segments of the smoking article industry from said continuous web.
  • This invention also relates to an article for generating an aerosol.
  • Known in the prior art are smoking articles which can be heated without burning to generate an aerosol. These smoking articles have a consumable portion, or "plug", comprising strips of tobacco obtained by cutting a web. During use, the plug is heated to generate the aerosol and this is done without burning the tobacco but by heating it to a temperature above a predetermined temperature.
  • the aerosol can be generated by heating the plug inductively, as described in patent application WO95/27411.
  • a flat metallic strip is inserted into the plug to extend coaxially for substantially the full length of the plug.
  • the strip has a flat shape and is thus not ideal for uniform heating.
  • the thickness of the material it has to heat is equal to the diameter of the plug, whilst at the ends of it, the material to be heated is less thick.
  • the heat generated inside the plug is not uniform to an optimal degree, thus lowering heating efficiency.
  • the metallic strip constitutes a foreign body with a sharp cutting edge which, if exposed, can accidentally injure the user during use.
  • the metallic strip is difficult to manage during the production process of the smoking article.
  • the production of the smoking article involves inserting the metallic strip into the plug during a step in the production process following the crimping/cutting of the tobacco web (inserting it before that would mean crimping or cutting not only a continuous web of tobacco but, at the same time, also a continuous metal strip, which would rapidly wear the crimping or cutting unit. This in turn means considerably complicating the production machinery and higher production costs.
  • metallic particles are dispersed in the mixture (or "slurry") used to make the tobacco web, so as to obtain a paste in which the metallic particles are uniformly mixed.
  • the heat in the plug is distributed uniformly. Nevertheless, on account of the excessive dispersion and reduced size of the metallic particles, the heating effect is relatively inefficient and not ideal for generating the aerosol.
  • the metallic particles dispersed therein tend to accelerate wear of the means used to cut the continuous tobacco rod.
  • the technical purpose of this invention is, therefore, to provide a method for making a continuous web of reconstituted material of plant origin, in particular, tobacco, a method for making rod-shaped segments of the smoking article industry from said continuous web, as well as an aerosol generating article to overcome the above-mentioned disadvantages of the prior art.
  • Aim of the invention is, therefore, to provide a method for making a continuous web of reconstituted material of plant origin, in particular, tobacco, a method for making rod-shaped segments of the smoking article industry from said continuous web, as well as an aerosol generating article to overcome the above-mentioned disadvantages of the prior art.
  • the aim of this invention is to provide a method for making a continuous web of reconstituted material of plant origin, in particular, tobacco, a method for making rod-shaped segments of the smoking article industry from said continuous web, as well as an aerosol generating article to allow the plug to be heated in an optimum and efficient manner.
  • a further aim of this invention is to provide a method for making a continuous web of reconstituted material of plant origin, in particular, tobacco, a method for making rod-shaped segments of the smoking article industry from said continuous web, as well as an aerosol generating article to increase the reliability of the machinery used for the production of the smoking articles.
  • These aims are substantially achieved by a method for making a continuous web of reconstituted material of plant origin, in particular, tobacco, a method for making rod-shaped segments of the smoking article industry from said continuous web, as well as an aerosol generating article, comprising the technical features set out in claims 1 , 10 and 14 and/or in one or more of the claims dependent thereon.
  • Figure 1 shows a schematic view of an embodiment of a plant for implementing the methods according to this invention
  • Figures 2A-2B show respective schematic views of a detail of the embodiment of the plant of Figure 1 ;
  • Figure 3A shows a schematic view of another detail of the embodiment of the plant of Figure 1 , in a first embodiment
  • Figure 3B shows a schematic view of the detail of Figure 3A, in a second embodiment
  • Figures 4A-4B show respective views of an embodiment of an article comprising an aerosol generating segment according to this invention
  • Figures 5A-5F show possible different example embodiments of an aerosol generating segment according to this invention.
  • the method for making a continuous web N of reconstituted material of plant origin is implemented using "slurry" technology, that is to say, based on a step of releasing a continuous layer S onto a conveyor belt 10 movable along a feed direction L.
  • the continuous layer S is formed of a mix I in liquid or semi-liquid form and comprising the reconstituted material.
  • the term "reconstituted material” is used in particular to mean a tobacco based plant material. It is specified, however, that the method of the invention can also be implemented with a generic plant fibre material, alternative to tobacco and suitable for use in aerosol-generating smoking articles.
  • the mix I is made from solid components of the aforesaid material of plant origin, shredded and mixed with one or more other solid and, z or liquid components such as, for example, water, glycerine, cellulose fibres and guar gum.
  • the mix I has a predetermined percentage by weight of liquid such as to give the mix a liquid or semi-liquid consistency suitable for application using nozzles typical of slurry technology, preferably between 60% and 90%.
  • the plant 1 comprises a mix feed unit 30 for delivering the mix I to the conveyor belt 10.
  • the mix feed unit 30 may comprise a mixer 31 connected to a nozzle 32 configured to deliver the mix I to the conveyor belt 10 in order to form the aforesaid continuous layer S on the top surface of the conveyor belt 10.
  • the continuous layer has a constant thickness of between 0.1 and 0.3 mm, more preferably, approximately 0.2 mm.
  • the continuous layer S preferably has a width of between 30 cm and 150 cm and/or corresponding to a multiple of (preferably between 3 and 10 times, for example 5 times) the width of a strip suitable for forming a continuous rod.
  • the continuous web MW of multiple width obtained by drying the continuous layer, is then subdivided into a plurality of webs SW of single width, in particular between 6 cm and 30 cm, more preferably between 10 cm and 13 cm, each suitable for making a respective continuous rod by gathering the web and wrapping it in a paper tube defining the rod.
  • the multiple continuous web MW is wound on a roll, transferred, if necessary, and then unwound to be cut into single-width strips SW which can be re-wound and sent to respective forming units for forming the continuous rods or directly processed in parallel in a multiple rod machine.
  • the term “multiple” is used to indicate the number of webs (whose width is suitable for making one rod each), into which the web leaving the dryer is then subdivided, that is to say, the ratio between the widths of the webs.
  • the method also comprises a step of combining with the continuous layer S a plurality of metallic powder strips F1 oriented longitudinally along the feed direction L and disposed alongside each other according to an orderly distribution.
  • the metallic powder strips F1 are straight and parallel to each other.
  • the metallic powder strips F1 are parallel to the feed direction L.
  • the metallic powder strips F1 are laterally spaced from each other, preferably equispaced, so as to define, transversely to the feed direction L, an alternating succession of zones with the metallic powder strips F1 and zones without the metallic powder strips F1 .
  • metallic powder strips is used to mean a plurality of uniform rows or lines formed by depositing metallic powder, preferably evenly, such as to define respective zones of electrical continuity suitable for induction heating by generating eddy currents or loss by magnetic hysteresis.
  • the metallic powder is formed from noncohesive particles of steel.
  • the metallic powder is formed from non-cohesive particles of nickel.
  • the metallic powder is formed from a mixture of non-cohesive particles of steel and nickel. In the latter case, the compositional proportion of the mixture is at least 20% steel and the rest of nickel or vice versa.
  • the non-cohesive metallic particles are combined with the continuous layer S in such a way as to be in contact with each other so as to ensure electrical continuity.
  • the metallic powder strips F1 have a substantially flat cross section, for example, rectangular.
  • the metallic powder strips F1 have a constant thickness along the length of the metallic powder strips F1 themselves.
  • the metallic powder strips F1 have a thickness of between 0.04 mm and 0.08 mm. More preferably, the metallic powder strips F1 have a thickness of between 0.05 mm and 0.074 mm and, still more preferably, approximately 0.06 mm.
  • the metallic powder strips F1 have a constant width along their length.
  • the metallic powder strips Fl have a width of between 0.05 mm and 0.50 mm.
  • the metallic powder strips F1 have a width of between 0.15 mm and 0.35 mm.
  • there are more than 5 metallic powder strips F1 more preferably between 5 and 50, for each single width web suitable for making a respective rod (hence between 6 cm and 30 cm in width).
  • the method comprises combining the continuous layer S with a number of metallic powder strips F1 equal to a multiple of a number greater than 5 and preferably between 5 and 50.
  • each single web SW contains between 5 and 25 metallic powder strips F1 .
  • the metallic powder strips F1 contained in each web single width web SW (suitable for making a respective rod) define a total transverse metallic surface area of between 0.10 mm 2 and 0.50 mm 2 , this surface area corresponding to the total surface area of the metallic section of the corresponding end article. More preferably, the metallic powder strips F1 define a total transverse metallic surface area of between 0.15 mm 2 and 0.40 mm 2 and, still more preferably, between 0.20 mm 2 and 0.35 mm 2 . Obviously, considering the initial multiple width web MW, this surface area must be multiplied by that multiple.
  • this technical feature allows optimal and efficient heating of the end article during the use thereof.
  • the plant 1 comprises a feed unit 20 for feeding the metallic powder strips F1 , for example, provided with a plurality of dispensing means 22, configured to deposit the metallic powder along the conveyor belt 10 so as to define the metallic powder strips F1 .
  • the dispensing means 22 release metallic powder evenly, and preferably constantly, directly onto the conveyor belt and/or on the mixture I, while the relative movement between the dispensing means 22, which are preferably fixed, and the conveyor belt 10, which is movable along the feed direction L, results in the aforesaid metallic powder strips F1 .
  • the conveyor belt 10 may also comprise retaining elements (not illustrated in the accompanying drawings) configured to hold the metallic powder strips F1 on the conveyor belt 10 along the feed direction L so the metallic powder strips F1 remain in the predetermined arrangement.
  • the retaining elements comprise a plurality of magnetized elements, integrated in or fixed to, the conveyor belt 10 or, alternatively, movable along the feed direction L (for example, via magnetized discs whose arrangement-spacing corresponds to the transverse arrangementspacing of the metallic powder strips F1 ) and configured to magnetically engage (attract/repel) the respective metallic powder strips F1 .
  • the step of combining the metallic powder strips F1 with the continuous layer S may be carried out by disposing the metallic powder strips F1 on a surface zone of the continuous layer S. If this method is used, the metallic powder strips F1 may be only partly integrated in the continuous layer S.
  • the metallic powder strips F1 may be released directly onto the continuous layer.
  • the feed unit 20 that feeds the metallic powder strips Fl is operatively disposed downstream of the feed unit 30 that feeds the mix I.
  • the metallic powder strips F1 may be released directly onto the conveyor belt 10.
  • the feed unit 20 that feeds the metallic powder strips F1 is operatively disposed upstream of the feed unit 30 that feeds the mix I, which embeds the metallic powder strips F1 as it delivers them to the conveyor belt 10.
  • the step of combining the metallic powder strips F1 with the continuous layer S may be carried out by embedding the metallic powder strips F1 in the continuous layer S.
  • the feed unit 30 that feeds the mix may comprise first mix dispensing means, which are operatively disposed upstream of the feed unit 20 that feeds the metallic powder strips F1 and which are configured to deliver a first continuous layer S of mix I, and second mix dispensing means, which are operatively disposed downstream of the feed unit 20 that feeds the metallic powder strips F1 and which are configured to deliver a second continuous layer S of mix I.
  • the metallic powder strips F1 are deposited on the surface zone of the first continuous layer S of mix and then covered by the second continuous layer S so as to embed the metallic powder strips F1 in substantially sandwich-like manner.
  • the metallic powder strips F1 are continuous strips.
  • the step of combining the metallic powder strips F1 with the continuous layer S may be carried out by depositing discrete metallic powder strips F1 , in particular between 10 mm and 100 mm in length, by releasing successive metallic powder strips F1 at a predetermined spacing from each other.
  • the discrete metallic powder strips F1 are obtained by dispensing the metallic powder intermittently via the aforesaid dispensing means 22 of the feed unit 20 that feeds the metallic powder strips F1.
  • the discrete metallic powder strips F1 are illustrated by way of example in the solution of Figure 3B which is described below.
  • the method comprises a subsequent step of drying the continuous layer S containing the metallic powder strips F1 so as to obtain a dry, multiple width continuous web MW.
  • the plant 1 comprises one or more dryers 40 disposed in series along the feed direction L of the conveyor belt 10.
  • the use of several dryers disposed in series allows optimizing the process control conditions (temperature, humidity) of the step of drying.
  • the continuous layer S moves through one or more drying spaces defined by respective dryers 40 for a drying time determined as a function of a plurality of operating parameters such as, for example, the composition of the mix I, the thickness of the continuous layer S, the temperature profile of each dryer 40 and the desired humidity percentage for the continuous web N.
  • the step of drying is over, the aforesaid continuous web MW containing the metallic powder strips F1 is completely formed.
  • uneven thickness at the strips F1 is smoothed out by levelling the continuous layer S.
  • the invention thus provides a web (S; MW; SW) intended for the production of an aerosol generating article formed of a continuous layer of plant origin having, embedded in its thickness, a plurality of metallic powder strips (F1 ) oriented longitudinally along the web and disposed alongside each other according to an orderly distribution; the metallic powder strips F1 are laterally spaced from each other, preferably equispaced, so as to define, transversely to the web, an alternating succession of zones with the metallic powder strips F1 and zones without the metallic powder strips F1 .
  • the method comprises a step of feeding a dried, single width, continuous web SW, obtained by longitudinally cutting a dried, multiple width, continuous web MW made using the method described above.
  • the web that is processed by crimping or cutting may be the entire web MW which leaves the dryer.
  • the method then comprises a step of crimping and/or cutting the continuous web SW along parallel longitudinal lines.
  • the plant 1 comprises a cutting or crimping unit 50 provided with cutting tools 51 , such as, for example, rotary blades or rollers with circumferential crests running alongside each other and configured to crimp and/or cut the continuous web N.
  • cutting tools 51 such as, for example, rotary blades or rollers with circumferential crests running alongside each other and configured to crimp and/or cut the continuous web N.
  • crimping or cutting is done using different rollers, for crimping or cutting respectively, whose outer profile is configured according to the intended purpose.
  • the step of crimping/cutting is illustrated by way of example in Figures 1 and 3A/3B.
  • the solution in which the single width web SW is cut into strips the same description, however, also applies to the solution in which the web is crimped, which differs from cutting in that the web is scored along parallel, longitudinal lines (defining zones of weakness suitable for subsequently gathering the web into a circular shape) but without dividing it into strips.
  • the continuous web SW is cut into strips T along the aforesaid parallel, longitudinal lines which, according to the invention, are disposed at the zones without the metallic powder strips F1 .
  • this technical feature allows the cutting tools 51 to work in optimum manner and protects the cutting tools 51 .
  • the cutting tools 51 come into contact only with the dry mix I and not with the metallic powder strips F1 , thus preventing damage and/or reducing tool wear.
  • not cutting the zones where the metallic powders are allows the strips to hold the powder more securely inside, preventing undesirable leaks during subsequent steps in the process.
  • the metallic powder strips F1 are distributed in the continuous web SW in such a way that at least some of the strips T each comprise one or more metallic powder strips F1.
  • this technical feature allows the metallic powder strips F1 to be uniformly distributed in the strips T, hence in the aerosol generating segments B2.
  • Figure 3A shows the solution where the metallic powder strips F1 are continuous
  • Figure 3B shows the solution where the metallic powder strips F1 are discrete.
  • the method may comprise a step of detecting to determine a position of the metallic powder strips F1 within the initial web SW or within the crimped/cut web.
  • the plant 1 may comprise sensors, not illustrated in the accompanying drawings, operating by radiation and, for example, of the optical/photoelectric, infrared or other suitable type.
  • this step allows detecting the lateral position of the metallic powder strips F1 at all times so as to prevent interaction between one or more metallic powder strips F1 and the cutting tools 51 and/or to check whether the metallic powder strips F1 are excessively misaligned within the respective cut strips.
  • the sensors are connected to a control unit operating by feedback on the feed means 20 that feed the metallic powder strips F1 so that incorrect positioning of the metallic powder strips F1 can be corrected, if necessary.
  • the sensors can detect the spacing between two successive metallic powder strips F1 so as to control the subsequent step of transversely cutting the rod, described below.
  • the method comprises a subsequent step of gathering the crimped or cut web and wrapping it in a wrapping strip, preferably of paper, to make a continuous rod “B1 ”.
  • the plant 1 comprises a forming unit 60, in particular provided with a forming beam of known type.
  • the method comprises a subsequent step of cutting the continuous rod B1 into segments.
  • the step of cutting the continuous rod B1 into segments allows obtaining the aerosol generating consumable portions or "plugs" for the smoking article.
  • the plant 1 comprises a secondary cutting unit 70 provided with cutting tools 71 such as, for example, rotary blades configured to transversely cut the continuous rod B1 at regular intervals so as to obtain segments B2 of the same length.
  • cutting tools 71 such as, for example, rotary blades configured to transversely cut the continuous rod B1 at regular intervals so as to obtain segments B2 of the same length.
  • the step of cutting the continuous rod B1 into segments is carried out in zones of the continuous rod B1 included between consecutive metallic powder strips F1 so that the cutting action does not intersect the metallic powder strips F1 ,
  • this technical feature has a twofold advantage. Firstly, cutting the continuous rod B1 in portions included between consecutive metallic powder strips F1 allows protecting and preserving the cutting tools 71 , since they operate only on the mix I and not on the metallic powder strips F1. Secondly, as explained above, the metallic powder strips F1 are contained entirely within the segment B2 so as not to protrude or come out from the axial ends of the article itself.
  • cutting in zones of the continuous rod Bl included between the metallic powder strips F1 is carried out by feedback following the step of detecting the position of the metallic powder strips F1 within the crimped or cut web.
  • This invention also relates to an aerosol generating article A comprising a plurality of elements assembled to form a rod-shaped aggregate, the preferred embodiment of which is illustrated by way of non-limiting example in Figures 4A-4B.
  • the article A has a proximal end, provided with a filter segment C, and a distal end, provided with an aerosol generating segment B2.
  • the aerosol generating segment B is preferably made using the above described method for making rod-shaped segments B2 of the smoking article industry.
  • the aerosol generating segment B2 comprises an outer tubular covering at least partly filled with a plurality of strips T made from the aerosol generating material, where at least some of the strips T include one or more metallic powder strips F1 susceptible of heating by induction. According to an aspect of this invention, at least some of the strips T include one or more metallic powder strips F1 .
  • this feature allows the aerosol generating segment B2 to be uniformly and efficiently heated during use.
  • each metallic powder strip F1 has a lateral surface that is fully covered by the respective strip T.
  • each metallic powder strip F1 is at least laterally embedded in the strip T and is preferably also embedded at the ends (in the case of the discrete strips).
  • this feature allows further increasing the heating efficiency of the aerosol generating segment B2 during use.
  • Figures 5A-5F illustrate possible example embodiments of the aerosol generating segment B2 and, in particular, of the strips T making it up.
  • Figure 5A shows a plurality of strips T, each comprising a single metallic powder strip F1 inside it.
  • Figure 5B shows a plurality of strips T in which a first number of strips T comprise a single metallic powder strip F1 , while a second number of strips T do not comprise any metallic powder strips F1 .
  • Figure 5C shows a plurality of strips T in which a first number of strips T comprise two (or more) metallic powder strips F1 , while a second number of strips T do not comprise any metallic powder strips F1 .
  • Figure 5D shows a plurality of strips T in which all the strips comprise two (or more) metallic powder strips F1 .
  • Figure 5E shows a plurality of strips T in which a first number of strips T comprise two (or more) metallic powder strips F1 , while a second number of strips T comprise a single metallic powder strip F1 .
  • Figure 5F shows a plurality of strips T in which a first number of strips T comprise two (or more) metallic powder strips F1 , a second number of strips T comprise a single metallic powder strip F1 , while a third number of strips T do not comprise any metallic powder strips Fl .
  • the strips comprise one or more metallic powder strips F1 , where the number of such strips may be increased to enhance the heating efficiency.
  • the invention achieves the preset aims overcoming the drawbacks of the prior art.
  • the methods of the invention allow simplifying the plant architecture needed for making inductively heatable smoking articles. This result is achieved using a plurality of metallic powder strips inserted in an orderly fashion inside the mix.
  • the methods of the invention also allow obtaining smoking articles that can be heated by induction in an efficient and optimum manner. This result is accomplished thanks to the presence of metallic powder strips distributed uniformly within the aerosol generating segment or "plug".
  • the metallic powder strips are positioned in such a way as to uniformly heat the innermost portions as well as the peripheral portions of the aerosol generating segment or "plug".
  • the number of metallic powder strips and/or their total mass are such as to be able to generate the aerosol in an efficient manner.

Abstract

Un procédé de production d'une bande continue (N) de matériau reconstitué d'origine végétale, en particulier du tabac, comprend les étapes consistant à libérer une couche continue (S) sur une bande transporteuse (10) mobile le long d'une direction d'alimentation (L) et à combiner avec la couche continue (S) une pluralité de bandes de poudre métallique (F1) orientées longitudinalement le long de la direction d'alimentation (L) et disposées les unes à côté des autres selon une répartition ordonnée. Les bandes de poudre métallique (F1) sont espacées latéralement les unes des autres, de préférence à distances égales, de manière à définir, transversalement à la direction d'alimentation (L), une succession alternée de zones avec les bandes de poudre métallique (F1) et de zones sans les bandes de poudre métallique (F1). Après quoi, la couche continue (S) contenant les bandes de poudre métallique (F1) est séchée.
PCT/IB2023/057303 2022-07-18 2023-07-18 Procédé de production d'une bande continue de matériau reconstitué d'origine végétale contenant des éléments métalliques pouvant être chauffés par induction WO2024018373A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102022000014998 2022-07-18
IT202200014998 2022-07-18

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WO2024018373A1 true WO2024018373A1 (fr) 2024-01-25

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180192687A1 (en) * 2015-07-06 2018-07-12 Philip Morris Products S.A. Method for manufacturing an inductively heatable aerosol-forming substrate
US20210244070A1 (en) * 2018-02-26 2021-08-12 Rai Strategic Holdings, Inc. Heat conducting substrate for electrically heated aerosol delivery device
WO2021213845A1 (fr) * 2020-04-20 2021-10-28 Hauni Maschinenbau Gmbh Appareil et procédé de production d'une tige, et article en forme de tige dans l'industrie de traitement du tabac
CN114009841A (zh) * 2021-12-08 2022-02-08 云南喜科科技有限公司 一种卷曲式气溶胶生成段及包含其的气溶胶发生制品

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180192687A1 (en) * 2015-07-06 2018-07-12 Philip Morris Products S.A. Method for manufacturing an inductively heatable aerosol-forming substrate
US20210244070A1 (en) * 2018-02-26 2021-08-12 Rai Strategic Holdings, Inc. Heat conducting substrate for electrically heated aerosol delivery device
WO2021213845A1 (fr) * 2020-04-20 2021-10-28 Hauni Maschinenbau Gmbh Appareil et procédé de production d'une tige, et article en forme de tige dans l'industrie de traitement du tabac
CN114009841A (zh) * 2021-12-08 2022-02-08 云南喜科科技有限公司 一种卷曲式气溶胶生成段及包含其的气溶胶发生制品

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