EP2303043A2 - Cigarette sans fumée - Google Patents

Cigarette sans fumée

Info

Publication number
EP2303043A2
EP2303043A2 EP09769030A EP09769030A EP2303043A2 EP 2303043 A2 EP2303043 A2 EP 2303043A2 EP 09769030 A EP09769030 A EP 09769030A EP 09769030 A EP09769030 A EP 09769030A EP 2303043 A2 EP2303043 A2 EP 2303043A2
Authority
EP
European Patent Office
Prior art keywords
smoke
heat
nicotine
cigarette
free cigarette
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.)
Granted
Application number
EP09769030A
Other languages
German (de)
English (en)
Other versions
EP2303043B1 (fr
Inventor
Marcel Köller
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.)
OLIG AG
Original Assignee
Olig AG
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
Priority claimed from DE102008030548.0A external-priority patent/DE102008030548B4/de
Priority claimed from EP08020736A external-priority patent/EP2191735B1/fr
Priority claimed from EP09003623.7A external-priority patent/EP2227973B1/fr
Application filed by Olig AG filed Critical Olig AG
Priority to EP09769030.9A priority Critical patent/EP2303043B1/fr
Publication of EP2303043A2 publication Critical patent/EP2303043A2/fr
Application granted granted Critical
Publication of EP2303043B1 publication Critical patent/EP2303043B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
    • F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00—Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/10—Devices with chemical heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00—Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/80—Manufacture

Definitions

  • the present invention relates to a smoke-free cigarette with a heat unit for self-sufficient generation of heat and a nicotine reservoir in which nicotine or a nicotine-containing compound is located.
  • Smoke-free cigarettes are known in numerous different embodiments from the prior art.
  • a smoke-free cigarette which has a heat pipe which is heated by means of the flame of a lighter. Due to its high heat capacity, the heat pipe releases heat over a sufficiently long period of time so that the stimulant contained in a reservoir can evaporate.
  • a smoke-free cigarette which has a nicotine depot and which is characterized by the fact that heating the guided through the nicotine depot air flow to release the nicotine is not required is.
  • the nicotine reservoir contains a carrier that is already in its gas phase at ambient temperature.
  • WO 2507/054157 A1 relates to a smoke-free cigarette which has a heating device designed to heat a reservoir from which nicotine is released with a heating wire through which current flows.
  • a smoke-free cigarette which is optically and geometrically adapted to a commercial cigarette and which consists of two parts, which are connected to each other by a suitable connection technique, preferably by plugging.
  • DE 10 2506 047 146 A1 relates to a smoke-free cigarette with a heat accumulator for heating a nicotine-containing insert, wherein the heat accumulator is heated by a burner.
  • a smoke-free cigarette which has a heat storage for heating a nicotine-containing reservoir, which is heated by a filament.
  • DE 690 12 823 T2 relates to a smoke-free cigarette which contains a nicotine-containing granules, which can be absorbed by the user through a sleeve in the mouth.
  • a smoke-free cigarette with a reusable and a non-reusable part wherein the reusable part has a heating source, while the non-reusable part comprises a nicotine reservoir and a mouthpiece.
  • the present invention has for its object to provide a smoke-free cigarette, which is relatively simple and leads to an effective heating of the inhaled by a user air and / or the nicotine reservoir. This object is achieved by a smoke-free cigarette having the features of the independent claims.
  • the present invention comprises a smoke-free cigarette with a heat unit for self-sufficient generation of heat and a nicotine reservoir in which nicotine or a nicotine-containing compound is, wherein the heat unit comprises a crystallizable medium which releases heat in its crystallization. According to the invention it is thus provided that heat is released by the crystallization of the medium, which serves to heat the nicotine reservoir and promote the release of nicotine and / or to heat the air inhaled by the user.
  • the heating unit heats up to a temperature between 40 ° C and 7O 0 C, advantageously to a temperature between 45 ° C and 55 ° C. This allows for sufficient heating of the user-inspired air and / or nicotine reservoir without the cigarette itself becoming too hot to be kept comfortable and / or requiring elaborate thermal insulation.
  • the heating unit radiates heat continuously between 3 and 15 minutes, advantageously between 5 and 10 minutes.
  • the heat unit maintains a temperature between 40 ° C and 7O 0 C during this time, more advantageously between 45 ° C and 55 ° C at.
  • the crystallisable medium may be a supersaturated metastable solution. This supersaturated solution may crystallize with the release of heat when the crystallization process has been initiated.
  • the crystallisable medium in particular the solution, at least at ambient temperature in a metastable, überüber- Saturated state is present, so that even at ambient temperature, the crystallization can be triggered.
  • the crystallizable medium may contain stabilizers which counteract unwanted crystallization. However, the medium may also be free from stabilizers.
  • the crystallizable medium may further contain crystallization nuclei. These facilitate the triggering of the crystallization process.
  • the medium is essentially free of crystallization nuclei.
  • the crystallization process can then be e.g. are triggered by crystallization seeds are introduced by a triggering mechanism in the medium.
  • the crystallisable medium has a liquid containing a salt hydrate.
  • this is a supersaturated solution of the salt hydrate.
  • the crystallizable medium may also contain sugar.
  • heat units heat up more than those based on a salt hydrate, so that the cigarette can become too hot.
  • the salt hydrate may be sodium acetate trihydrate and / or Glauber's salt and / or magnesium nitrate hexahydrate. It is provided that the cigarette has a self-sufficient heat unit for generating heat and a nicotine reservoir in which nicotine or a nicotine-containing compound is located.
  • the heating unit is designed such that it comprises a liquid containing sodium acetate trihydrate and / or sodium sulfate and / or Glauber's salt and / or magnesium nitrate hexahydrate which is present in the heat unit in a metastable, supersaturated form and in the crystallization of the sodium acetate Trihydrate, the sodium sulfate, the Glauber's salt and / or the magnesium nitrate hexahydrate gives off heat.
  • the smoke-free cigarette according to the invention is made in one piece. By this is meant that a user does not have to assemble the cigarette from several parts, but that it is ready to use as a complete smoke-free cigarette.
  • the smoke-free cigarette in its entirety is designed as a disposable article.
  • the entire cigarette is therefore discarded after a single use.
  • the heat unit is not reusable. This allows a cost-effective design and ease of use.
  • the smokeless cigarette has an outer shell surrounding the nicotine reservoir and the heating unit.
  • the cigarette may have a mouthpiece, in particular in the form of a filter, wherein the outer shell surrounds the nicotine reservoir, the heating unit and the mouthpiece.
  • the nicotine reservoir, the heat unit and the mouthpiece are combined by the outer shell to form a unit.
  • the outer shell connects the mouthpiece with the nicotine reservoir and the heat unit mechanically.
  • the outer shell advantageously forms an air passage through which air sucked in by a user flows.
  • the air flows from one end of the cigarette through the nicotine reservoir to the other end of the cigarette.
  • the smoke-free cigarette comprises a multi-layered outer shell, of which the outer layer has the optical properties of a conventional cigarette, of which another layer is a desorption barrier designed to inhibit the desorption of nicotine and / or Flavors prevented or at least significantly limited, and of which another layer is a stabilization layer designed to give the cigarette the mechanical stability required for use.
  • the present invention thus relates to a smokeless cigarette with a Mehrla- Ex Tohülle whose layers fulfill different tasks.
  • the multi-layer outer casing is preferably completely or substantially desorption-tight, that is, nicotine and / or flavors remain in the space surrounding the outer casing, even if the smoke-free cigarette is stored for a long time.
  • the outer shell may have the three layers mentioned or consist of these.
  • the non-smoking cigarette may comprise a multi-layered outer shell, of which the outer layer is made of paper or paper, of which another layer consists of metal or metal and of which another layer consists of a plastic material or a plastic material.
  • the paper layer may be the layer having the optical properties of a conventional cigarette, the metal layer may be the layer preventing or at least substantially hindering desorption, and the plastic layer may be the layer act, which gives the smoke-free cigarette the required mechanical stability.
  • the outer layer of paper serves to configure the haptic, optical and tactile properties of a conventional cigarette.
  • the directly or indirectly inwardly following metal layer, preferably aluminum layer forms the desorption barrier for nicotine and flavorings.
  • it also serves to regulate the heat during the active phase, that is, during the use phase of the smokeless cigarette.
  • the further and relative to the metal layer inside layer may consist of a plastic layer. On the one hand, it provides the necessary overall stability and, preferably, tension control and aroma resistance.
  • the overall arrangement that is, the multi-layer outer shell can be made single-layered or as a composite material.
  • the Desorptionsbar- riere between the outer layer and the stabilizing layer is arranged, or that the metal or metal-containing layer between the outermost layer and the existing plastic material or a plastic material having layer is arranged ,
  • the desorption barrier forms a "middle layer" which is located between the outer layer and the inner layer.
  • the layers of the multilayer outer shell can adjoin one another directly.
  • the invention also includes that one or more further intermediate layers are arranged between the individual layers.
  • the outer shell consists only of these three layers.
  • the metal is preferably aluminum.
  • the desorption barrier is thus preferably formed by an aluminum layer or by a layer which comprises at least aluminum.
  • the desorption barrier may be in the form of a film, preferably in the form of a metal foil and particularly preferably in the form of an aluminum foil.
  • At least one layer, preferably several or all layers of the outer shell in the form of a cigarette is cylindrical.
  • the layers of the outer shell all extend over the same length or over different lengths of the cigarette.
  • the smoke-free cigarette has a mouthpiece, and that the desorption barrier and / or the stabilization layer extend as far as the mouthpiece and the outer layer also around the mouthpiece.
  • the outer layer that surrounds the mouthpiece has the same color as a conventional cigarette in the region of the filter.
  • the mouthpiece is arranged so that the user picks up the nicotine and / or the flavorings with a warmed draft of air through the mouthpiece.
  • the mouthpiece to be adjoined by a space in which the nicotine reservoir and / or a reservoir for flavoring substances and / or the self-sufficient heating unit are arranged.
  • the thickness of the layers of the outer shell is identical.
  • the invention also includes that one layer has a smaller thickness than the other two layers or that one layer has a greater thickness than the other two layers.
  • the desorption barrier which can be embodied as a foil, has a smaller thickness than at least one or else both of the other two layers.
  • the stabilization layer has a greater thickness than at least one or both of the other layers.
  • the outer shell surrounds a space in which the heat unit and / or the nicotine reservoir are arranged.
  • the multilayer outer shell has been manufactured in the form of a composite material or that the layers of the outer shell are produced individually and then possibly joined together by the use of connecting means.
  • the cigarette further has a triggering mechanism to be actuated by a user, which initiates the crystallization. It can be provided that the crystallization is initiated by a mechanical process.
  • the smoke-free cigarette according to the present invention further comprises a triggering mechanism, by the operation of which the heating unit is activated.
  • the triggering mechanism is designed such that it can be triggered by the action of a compressive force.
  • Activation of the smokeless cigarette is thus very easily possible by the user exerting a compressive force resulting in activation of the heat unit, i. that the crystallization process is initiated and the heat unit gives off heat.
  • the triggering mechanism is formed by a small plate projecting into the solution, preferably a metal plate. Due to the activation or movement of this plate or of the clip, the activation or the initiation of the crystallization takes place. Due to the crystallization process, heat is continuously released over a certain period of time, which - as stated - serves to heat the nicotine reservoir and / or to heat the air inhaled by the user.
  • the triggering mechanism is designed such that it penetrates into the heating unit when it is triggered. It is thus conceivable, for example, to provide an injection pen or the like which penetrates into the heating unit when the triggering mechanism is actuated.
  • introduction may be understood to mean that the triggering mechanism or a part of it opens, ie, breaks through, the sheath of the heating unit, or that it is only pressed into the heating unit without this opening This heat can be used, for example, to warm the air stream the user inhales and / or to accelerate the release of nicotine from the reservoir.
  • the penetration is effected by exerting a compressive force.
  • a particularly compact arrangement results when the triggering mechanism is arranged inside the cigarette and can be triggered by pressure on one or more outer surfaces of the cigarette. It is conceivable if the triggering takes place by finger pressure on the exterior of the cigarette.
  • the triggering mechanism comprises one or more injection elements, in particular pins or needles, which penetrate into the heating unit upon actuation of the triggering mechanism.
  • injection elements in particular pins or needles, which penetrate into the heating unit upon actuation of the triggering mechanism.
  • a plurality of injection elements are present, it can be provided that they are spaced apart from one another in the circumferential direction of the cigarette. It is conceivable, for example, to arrange injection elements on two opposite sides of the heating unit. It is also possible to provide three or four injection elements, which are spaced apart in the circumferential direction in each case in the 125 ° angle or at 90 ° angle. Of course, it is also conceivable to provide only one or more than four injection elements.
  • the one or more injection elements are arranged on at least one spring.
  • the spring may be, for example, a leaf spring.
  • the spring can serve as a guide for the injection element or elements.
  • the spring may be arranged on the heating unit.
  • a fixing element is provided, by means of which the position of the injection element or elements can be fixed. By means of the fixing element can thus be carried out an adjustment of the position of the injection elements.
  • the injection element or elements may be arranged on the fixing element or on the above-mentioned spring.
  • the fixing element may be, for example, a fixing ring.
  • the fixing element surrounds the injection element or elements and / or the at least one spring.
  • the fixing element is deformable. It is conceivable that the user causes by exerting a compressive force on the deformable fixing that the injection element or elements are pressed into the heat unit.
  • the crystallization is initiated by the penetration of the injection element into the heating unit. It is conceivable that the injection element contains crystallization nuclei, which are released upon penetration into the heating unit.
  • the heat unit in the circumferential direction is partially or completely surrounded by the nicotine-containing reservoir.
  • the heat unit is thus arranged inside the smokeless cigarette and partially or completely surrounded by the nicotine reservoir
  • the heat unit comprises a rear side facing the user and a front side facing away from the user, and that the rear side and / or the front side adjoin a tobacco element or are surrounded by it at least in sections.
  • the heat unit is present in a hollow cylindrical space, in the interior of which the nicotine reservoir is located.
  • the heat unit and the nicotine reservoir are arranged directly or indirectly one behind the other in the longitudinal direction of the cigarette.
  • the nicotine reservoir may be in the form of a substrate having on its surface the nicotine or nicotine-containing compound, or in the form of a substrate containing the nicotine or nicotine-containing compound. It is conceivable that the substrate is tobacco and in particular tobacco enriched with nicotine or a nicotine compound.
  • the nicotine reservoir is arranged such that it can be heated by the heating unit.
  • the heating of the nicotine reservoir may cause the nicotine to evaporate more readily, desorb or otherwise detach from the substrate, and thus be more easily conducted into the airflow generated by the user.
  • an embodiment of the invention is that the air flow generated by the user can be heated by the heating unit. This results in a more pleasant feeling compared to a cold air stream to be inhaled by the user.
  • the cigarette may have a filter which essentially serves to limit the flow of air through the cigarette. Alternatively or additionally, be seen that the filter serves to retain substances that should not get into the air inhaled by the user.
  • the cigarette may have a jacket surrounding the thermal unit.
  • Such an embodiment of the invention has the advantage that the user does not directly contact the heating unit, but the sheath, which preferably has a heat-insulating effect, so that their temperature is below the temperature of the heat unit.
  • the present invention further relates to a smoke-free cigarette with a self-sufficient heat unit for generating heat and with a nicotine reservoir in which nicotine or a nicotine-containing compound is located, wherein the heat unit is arranged so that it surrounds the nicotine reservoir at least in sections , It is thus conceivable that the heat unit is closer to the outside of the cigarette than the nicotine reservoir. In the case of a preferably circular in cross-section running cigarette can thus be provided that the heat unit is located in a region which is located in the radial direction further out than the nicotine reservoir.
  • the nicotine reservoir is closer to the outside of the cigarette than the heat unit.
  • the heat unit is located in a region which is located in the radial direction further inward than the nicotine reservoir.
  • the nicotine reservoir can have a region in the form of a hollow cylinder, in the interior of which the heat unit is arranged.
  • the cigarette may have a closure element, in particular a cap or the like.
  • the closure member seals the end of the cigarette which is spaced from the end in use in the mouth. It is thus conceivable that the one end of the cigarette is formed through the mouthpiece or through the portion of the cigarette located in the mouth and that the other end is closed by the cap.
  • the closure can be airtight.
  • the present invention further comprises a method for producing a smokeless cigarette comprising the steps of: providing a heat unit, providing a nicotine reservoir which advantageously surrounds the heating unit, providing a mouthpiece, and arranging the mouthpiece, the nicotine reservoir and the heating unit in one common outer shell.
  • a ready-smoke-free cigarette is provided.
  • a cigarette is produced, as has been shown above.
  • the present invention further comprises a method for providing a heating unit for use in a smokeless cigarette as set forth above, characterized in that the crystallizable medium is heated to a temperature at least partially dissolving and then the heating unit filled with the solution.
  • the salt hydrate is heated to a temperature at which the salt at least partially goes into solution in its own water of crystallization.
  • the present invention thus comprises a method for filling a receptacle of a self-sufficient heating unit for use in a smoke-free cigarette. It is provided that the medium before and / or during its filling in the recording of the self-sufficient heating unit at a temperature of at least 50 0 C, preferably maintained at least 60 0 C or processed.
  • the spontaneous crystallization and also the doping with crystallization nuclei can be effectively prevented if the medium, in particular sodium acetate or a sodium acetate solution at a temperature of more than 5O 0 C, preferably maintained above 6O 0 C and / or processed.
  • the medium in particular sodium acetate or a sodium acetate solution at a temperature of more than 5O 0 C, preferably maintained above 6O 0 C and / or processed.
  • a process is thus provided in this temperature range, whereby the crystallizable medium without spontaneous crystallization and can be reliably filled into the recording of a self-sufficient heating unit without the said doping with crystallization nuclei.
  • the medium may be sodium acetate or a sodium acetate-containing solution.
  • the invention is not limited to this medium, but may also include other crystallizable media, and especially salts, preferably salt hydrates, such as hydrated sodium sulfate or magnesium nitrate hexahydrate.
  • the medium is filled into a receptacle having an inner diameter in the range of 2 mm to 7 mm, preferably in the range of 3 mm to 6 mm and particularly preferably of at most 6 mm.
  • the receptacle may for example have a length in the range of 70 mm to 110 mm, preferably in the range of 80 mm to 100 mm and particularly preferably of at most 100 mm.
  • the receptacle can be embodied, for example, in the form of a tube, which can be round or also rectangular in cross-section. This tube is closed after its filling with the medium.
  • the activation that is, the triggering of the crystallization process is preferably carried out by applying pressure to the outside of the recording by the user of the smokeless cigarette.
  • the medium is hydrate- or water-containing and that the storage and / or filling carried out under a water vapor pressure, which is above the desorption pressure of the water of the medium.
  • the storage and / or the filling process is preferably carried out under a higher water vapor pressure than the water vapor pressure of the water in the salt hydrate solution or the medium.
  • the medium is received before being filled in a storage container and is conveyed by means of a filling mechanism, preferably with a hydraulically operating filling mechanism from the reservoir directly or indirectly, for example by means of said cannula or other supply means in the recording of self-sufficient heat unit.
  • the present invention further relates to a smokeless cigarette having one or more self-sufficient heat units filled according to the illustrated method.
  • the present invention further includes a method for filling a smokeless cigarette with a heat unit according to the invention. It is intended in that the sodium acetate trihydrate and / or the sodium sulphate and / or the Glauber's salt and / or the magnesium nitrate hexahydrate are heated to a temperature at which the salt at least partially dissolves and the solution then enters the space provided to receive the heating unit the cigarette is filled.
  • the sodium acetate trihydrate and / or the sodium sulfate and / or the Glauber's salt and / or the magnesium nitrate hexahydrate are heated to a temperature at which the salt at least partially dissolves in its own water of crystallization.
  • FIG. 1 shows a smoke-free cigarette according to the present invention in a longitudinal sectional view in a first embodiment
  • FIG. 2 shows an enlarged detail of the triggering mechanism shown in FIG. 1,
  • FIG. 3 shows a smoke-free cigarette according to the present invention in a longitudinal section in a second embodiment
  • Figure 4 a smoke-free cigarette according to the present invention in a longitudinal sectional view in a third embodiment.
  • FIG. 5 shows a smoke-free cigarette according to the present invention in a longitudinal section in a fourth embodiment
  • FIG. 6 is a sectional view through a three-layer outer shell of a smoke-free cigarette according to the invention
  • FIG. 7 shows a schematic drawing of a filling process of a heating unit.
  • the smoke-free cigarette according to the present invention is intended to deliver nicotine to the smoker, but preferably not pollutants and carcinogenic substances.
  • the smoke-free cigarette 10 comprises a self-sufficient heating unit 14 or 40, a nicotine-containing substrate 15 or 50 and a mouthpiece 20.
  • the smoke-free cigarette 10 works without heat or energy from outside and is thus self-sufficient.
  • the smoke-free cigarette of the present invention is designed so that it is immediately ready for action, if the user so desires. In particular, it is a disposable cigarette which is usable only once and then discarded.
  • the heating unit In the interior of the heating unit there is a liquid to be crystallized, which is able to give off heat during the crystallization.
  • the crystallization process will be released again by activating a triggering mechanism, with the entire unit heating to approximately 45 to 55 ° C and giving off continuous heat for approximately 5 to 10 minutes.
  • These values are exemplary values.
  • the temperature and the time during which heat is given off can be adjusted, for example, via the amount of salt to be crystallized.
  • the heat unit is dimensioned such that it releases heat over at least one minute, preferably in the range of 2 to 4 minutes.
  • the air flow is guided through the tobacco 15 or 50 and thereby heated on the effective length due to the heat generated by the heat unit 14 and 40 over the effective length.
  • the air stream absorbs the vaporizing nicotine along with flavorings and is passed through the mouthpiece 20, which can also serve as a filter.
  • the mouthpiece 20 limits the flow of air and is dimensioned such that maximum nictitious limit values are not reached or exceeded.
  • the smoke-free cigarette 10 works without heat or energy from outside and is thus self-sufficient.
  • crystallization begins in the supersaturated, metastable solution. It may be, for example, a solution of sodium acetate trihydrate (CHaCOONa 3 H 2 O) in liquid.
  • CHaCOONa 3 H 2 O sodium acetate trihydrate
  • the sodium acetate trihydrate spontaneously crystallizes and releases the heat stored in the unit as latent heat (CH 3 COO ' (aq.) + Na + (aq.) ⁇ CH 3 COONa 3 H 2 O (solid) plus Heat), the ions present in the unit initially forming the ion lattice.
  • the water molecules occupy spaces defined in the interstices of the ion lattice formed in this way, precisely aligning their dipoles. In this way, the water molecules form a lattice in the crystal lattice.
  • the heat released in the crystallization thus consists, on the one hand, of the latent heat of the salt, that is, of its heat of solution or heat of crystallization.
  • heat is generated in the strongly exothermic formation of the water molecule lattice that proceeds in parallel. This heat of formation of the hydrate is also a latent heat.
  • sodium sulfate or the so-called Glauber's salt that is the decahydrate (Na 2 SO 4 10 H 2 O) can be used. It comes alternatively or additionally also the use of magnesium nitrate hexahydrate (Mg (NO 3 ) 2 6 H 2 O) as such or in a mixture with lithium nitrate (LiNO 3 ).
  • the mouthpiece 20 ensures a constant draft of air within the cigarette.
  • the cigarette 10 in this case has an outer shell 22, which may have a design as it corresponds to a conventional cigarette.
  • the outer shell 22 and thus the outer shape of the cigarette 10 is preferably cylindrical.
  • the outer shell may be constructed as shown in more detail with reference to FIG. 6.
  • the cigarette 10 At its end facing the user, the cigarette 10 has a filter 20, by means of which the air volume to be inhaled per unit of time can be limited or kept at a constant value.
  • the filter 20 is adjoined by a tobacco piece 30, in which the end area of a heat unit 40, which has been changed to the user, is arranged.
  • the heat unit 40 is located inside the cigarette 10 and is circumferentially completely surrounded by tobacco 50 enriched with nicotine. This tobacco filling 50 is located in the annulus surrounding the heat unit 40.
  • This nicotine-enriched tobacco substrate 50 is adjoined by another piece of tobacco 60, which forms the end of the cigarette 10 facing away from the user.
  • the smoke-free cigarette 10 further comprises a jacket surrounding the heat unit 40 on its outside, which is e.g. consists of a plastic film.
  • the spring 70 has a sloped portion that extends at an acute angle to the longitudinal axis of the heat unit 40, and an adjoining portion that extends parallel to the longitudinal axis of the heat unit 40 or the cigarette 10.
  • the springs 70 are surrounded in a region by a fixing ring 80 which is deformable.
  • one or more injection pins 90 are arranged, which extend perpendicular to the heat unit 40.
  • injection pin or pins 90 are arranged on the spring 70, this is preferably the case in the region in which the spring 70 extends parallel to the longitudinal axis of the heating unit 40.
  • the fixing ring 80 has the task of positioning the springs 70 and thus the injection pins 90 so that they rest on the surface of the heating unit 40 in the non-actuated state or have only a small distance, but only penetrate into this when a pressure force from the outside acts on the fixing ring 80 or on the injection pins 90.
  • the injection pins 90 have a tapered end, with which they penetrate upon actuation of the trigger mechanism in the heating unit 40.
  • the change of state due to the penetration of the Injection pin 90 is effected in the heating unit 40 or that the injection pin 90, for example, has means that promote the change of state, such as crystallization nuclei.
  • the embodiment of the cigarette according to the invention has a comparatively simple design and easy-to-actuate trigger mechanism. In addition, this can be made so that it builds small, so that miniaturization is possible.
  • a second embodiment is now shown, which differs from the first embodiment in the arrangement of nicotine reservoir and heat unit and in the triggering mechanism.
  • the medium used in the heating unit is designed exactly as described above.
  • the second embodiment is in a cylindrical interior 15, which is surrounded by the hollow cylindrical arranged or running unit of heat 14, conventional tobacco, which is slightly enriched with nicotine.
  • the mouthpiece 20 provides a constant draft within the system.
  • the crystallization is set in motion and thereby initiated the heat release process.
  • the initiation of the crystallization process takes place e.g. by a metal clip projecting into the solution, which is mechanically actuated and by which the crystallization is started or accelerated.
  • the smoke-free cigarette 10 further comprises a jacket 12 surrounding the heat unit 14 on its outer side.
  • This consists of a double-coated plastic film, in the interior of which there is the crystalline or liquid to be crystallized, which is able to store heat.
  • the sheath 12 surrounds according to the embodiment shown in the drawing, only the heat unit, but not the mouthpiece. In principle, however, it is also conceivable to guide the sheathing 12 over the entire length of the smokeless cigarette and thus also via the mouthpiece 20.
  • the jacket 12 of the cigarette serves on the one hand to prevent direct contact with the heat source in the form of the heat unit 14 and / or is designed such that it looks like a conventional cigarette.
  • the sheath 12 can be designed as shown below with reference to FIG. 6.
  • the end of the cigarette 10 which is at a distance from the mouthpiece 20 is closed by a capping 25.
  • the user disconnects or tears the cap 25 from the cigarette 10, with the result that air can be drawn through the cigarette 10 or through the nicotine-containing substrate 15.
  • FIG. 14 Such a design of the cigarette can be seen in FIG.
  • the heat unit 14 is closed by the cap 25, which prevents the access of air to the substrate 15 until it is removed by the user.
  • the heat unit 14 is penetrated by air ducts 16. These extend in the longitudinal direction of the cigarette 10.
  • the feature that one or more air channels 16 are arranged in the heating unit 14 in order to improve or even allow the supply of air is not limited to the output. management example limited according to Figure 5, but is a fundamentally possible embodiment of the present invention.
  • FIG. 6 shows a longitudinal section through an exemplary embodiment of a three-layer outer shell of a smoke-free cigarette.
  • an outer shell can be used in one of the preceding embodiments.
  • the outer shell consists of three layers of material.
  • the outer paper layer 1 serves to configure the haptic, optical and tactile properties of a conventional cigarette.
  • this paper layer 1 is adjoined by an aluminum layer 2, which forms the desorption barrier for nicotine and flavors / aromas present in the space surrounded by the outer shell.
  • the aluminum layer serves at the same time the heat regulation.
  • the aluminum layer 2 is followed by a plastic or plastic layer 3.
  • This consists of a plastic layer and ensures on the one hand for the necessary overall stability of the smokeless cigarette, for the train regulation and for the flavor stability.
  • three layers may be provided to form the entire outer shell.
  • the invention also encompasses that between two or all of the illustrated layers there are intermediate layers which have certain functional properties, such as, for example, the adhesion of the layers to one another, etc.
  • the outer shell consists only of the three layers shown.
  • a major advantage of the arrangement shown is that a smokeless cigarette is provided which is storable over a longer period, since the desorption of nicotine or flavorants is largely hindered or completely prevented without having to give up the usual feel of conventional cigarettes.
  • the paper layer may form the outermost layer of the multilayer outer shell.
  • the invention also includes that a further layer, such as a coating or the like, is applied to this layer.
  • the inner layer that is, the plastic layer 3 may form the innermost layer of the multilayer outer shell.
  • a further layer such as an inner coating.
  • the three layers 1, 2, 3 of the outer shell are shown with identical or largely identical thickness.
  • the invention also includes the case that different thicknesses can be provided. For example, it may be sufficient.
  • the outer shell shown in longitudinal section in FIG. 6 has the shape of a hollow-cylindrical body, in the interior of which there is a matrix on which nicotine and flavorings are located.
  • the self-sufficient heat unit in the form of a crystallizable medium in the interior of the self-sufficient heat unit in the form of a crystallizable medium. This self-sufficient thermal unit can be activated, for example, by pressure on the outer shell shown from the outside by the user.
  • This heat release heats a draft of air which is drawn through the interior of the smokeless cigarette and possibly a mouthpiece. The heating further results in facilitating the desorption of nicotine and / or flavor from the aforementioned matrix.
  • the salt is first heated. At first, the crystal water grating collapses. At the same time also lonengitter is destroyed. This process takes place when the salt is heated to a temperature of approx. 58 ° C.
  • This process is a dissolution process.
  • FIG. 7 shows, in a schematic view, the heat pad tube 100 which, after its filling with a crystallizable medium, has and then used as a self-sufficient heat unit of a smokeless cigarette.
  • the heat pad tube which may have a maximum diameter of 6 mm and a maximum total length of 100 mm, is filled by means of a filling cannula 120, which in turn communicates with a storage container 130.
  • the storage container 130 is not one connected filling hydraulic, which has the task of filling the crystallizable medium through the filling cannula 120 in the interior of the heat pad 100.
  • the reservoir 130 or the filling cannula 120 can be moved relative to the heat pad tube 100 in its axial direction, so that, for example, first the left portion of the tube 100 according to the figure and in the further course be filled at the opening of the cherriespadrschreibchens 100 subsequent areas.
  • sodium acetate is to be processed and filled in liquid, ready-to-use state.
  • the sodium acetate is introduced into the prefabricated, single-sided heat pad tubes 100 by means of one or more cannulas 120, and then the tubes 100 are closed. As stated above, is to prevent the unwanted spontaneous crystallization and unintentional doping with crystallization nuclei, the sodium acetate in the reservoir 130 and, optionally, maintained, and also in the filling cannula 120 at a temperature of more than 6O 0 C processed. This process control prevents spontaneous crystallization and the doping with crystallization nuclei.
  • the water vapor pressure of the salt hydrate solution in the storage container 130 or set in the filling cannula 120 to a higher value than the desorption pressure of the water in the salt hydrate solution In order to prevent a change in the water content of the sodium acetate solution, the water vapor pressure of the salt hydrate solution in the storage container 130 or set in the filling cannula 120 to a higher value than the desorption pressure of the water in the salt hydrate solution.
  • the sodium acetate heat pad according to the embodiment shown here is ready for use immediately after its filling. Due to the filling process described above, the further processing of the heat pads or heat pad tubes 100 is unproblematic, and they or the smoke-free cigarettes provided with them can be stored, for example, over an extended period of time, without causing unwanted crystallization of the sodium acetate.
  • the present invention not only concerns cigarettes in the true sense, but also cigars.
  • the term "cigarette” thus stands for both cigarettes and cigars.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Medicinal Preparation (AREA)

Abstract

L'invention concerne une cigarette sans fumée comportant une unité thermique destinée à la production autonome de chaleur, et un réservoir à nicotine contenant de la nicotine ou un composé nicotiné. L'unité thermique renferme un fluide cristallisable dégageant de la chaleur lors de sa cristallisation.
EP09769030.9A 2008-06-27 2009-06-29 Cigarette sans fumée Active EP2303043B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09769030.9A EP2303043B1 (fr) 2008-06-27 2009-06-29 Cigarette sans fumée

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102008030548.0A DE102008030548B4 (de) 2008-06-27 2008-06-27 Rauchfreie Zigarette
EP08020736A EP2191735B1 (fr) 2008-11-28 2008-11-28 Cigarette sans fumée
EP09003623.7A EP2227973B1 (fr) 2009-03-12 2009-03-12 Cigarette sans fumée
EP09003622.9A EP2138059B1 (fr) 2008-06-27 2009-03-12 Méthode de remplissage d'un logement d'une unité de chaleur autarcique, cigarette sans fumée avec une unité de chaleur autarcique, et dispositif de remplissage d'un logement d'une unité de chaleur autarcique
EP09769030.9A EP2303043B1 (fr) 2008-06-27 2009-06-29 Cigarette sans fumée
PCT/EP2009/004686 WO2009156181A2 (fr) 2008-06-27 2009-06-29 Cigarette sans fumée

Publications (2)

Publication Number Publication Date
EP2303043A2 true EP2303043A2 (fr) 2011-04-06
EP2303043B1 EP2303043B1 (fr) 2013-06-19

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US (2) US9046278B2 (fr)
EP (1) EP2303043B1 (fr)
JP (1) JP6016259B2 (fr)
CN (3) CN107822204A (fr)
AU (1) AU2009262422B2 (fr)
BR (1) BRPI0913891B1 (fr)
CA (1) CA2712412C (fr)
EA (1) EA019900B1 (fr)
WO (1) WO2009156181A2 (fr)

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US11672279B2 (en) 2011-09-06 2023-06-13 Nicoventures Trading Limited Heating smokeable material
US12041968B2 (en) 2011-09-06 2024-07-23 Nicoventures Trading Limited Heating smokeable material
US11241042B2 (en) 2012-09-25 2022-02-08 Nicoventures Trading Limited Heating smokeable material
US10036574B2 (en) 2013-06-28 2018-07-31 British American Tobacco (Investments) Limited Devices comprising a heat source material and activation chambers for the same
US10542777B2 (en) 2014-06-27 2020-01-28 British American Tobacco (Investments) Limited Apparatus for heating or cooling a material contained therein
US11064725B2 (en) 2015-08-31 2021-07-20 British American Tobacco (Investments) Limited Material for use with apparatus for heating smokable material
US11659863B2 (en) 2015-08-31 2023-05-30 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US11924930B2 (en) 2015-08-31 2024-03-05 Nicoventures Trading Limited Article for use with apparatus for heating smokable material
US11452313B2 (en) 2015-10-30 2022-09-27 Nicoventures Trading Limited Apparatus for heating smokable material
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US12016393B2 (en) 2015-10-30 2024-06-25 Nicoventures Trading Limited Apparatus for heating smokable material

Also Published As

Publication number Publication date
EA201071208A1 (ru) 2011-06-30
CN110584203A (zh) 2019-12-20
BRPI0913891A2 (pt) 2015-10-27
JP6016259B2 (ja) 2016-10-26
JP2011525366A (ja) 2011-09-22
WO2009156181A2 (fr) 2009-12-30
CA2712412C (fr) 2016-11-29
WO2009156181A3 (fr) 2010-03-04
US9046278B2 (en) 2015-06-02
EA019900B1 (ru) 2014-07-30
US20150313286A1 (en) 2015-11-05
US10098382B2 (en) 2018-10-16
EP2303043B1 (fr) 2013-06-19
CA2712412A1 (fr) 2009-12-30
CN102131411A (zh) 2011-07-20
AU2009262422B2 (en) 2014-05-08
AU2009262422A1 (en) 2009-12-30
US20110290266A1 (en) 2011-12-01
CN107822204A (zh) 2018-03-23
BRPI0913891B1 (pt) 2020-10-06

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