RU2744738C1 - Aerosol-forming structure - Google Patents

Abstract

FIELD: aerosol devices.

SUBSTANCE: disclosed is an aerosol-forming structure (1) for use in an article with a device for heating aerosol-forming material so that at least one component of aerosol-forming material evaporates. The aerosol-forming structure includes an assembled layered structure (10, 20, 30, 40, 50) having the first sheet (11, 21, 31, 41) containing aerosol-forming material, and the second sheet (12, 22, 32, 42) containing heating material that is heated by the penetration of a varying magnetic field to heat the aerosol-forming material of the first sheet. The second sheet does not contain aerosol material.

EFFECT: invention performs its functions effectively.

14 cl, 13 dwg

Description

The technical field to which the invention relates

The invention relates to aerosol-forming structures for use in products for use with a device for heating an aerosol-forming material, methods for making an aerosol-forming structure, products for use with a device for heating an aerosol-forming material, methods for making an article for use with a device for heating an aerosol-forming material and systems containing such an article and such a device.

State of the art

Smoking articles such as cigarettes, cigars and the like burn tobacco during use to generate tobacco smoke. Attempts have been made to create an alternative to these tobacco burning products by developing products that release compounds without burning. Examples of such articles are so-called "non-combustible" articles or heaters or tobacco heating articles that release compounds by heating but not burning the material. The material can be, for example, tobacco or other non-tobacco material, which may or may not contain nicotine.

Disclosure of invention

A first aspect of the present invention provides an aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material; The aerosol-forming structure comprises an assembled laminate having a first sheet containing an aerosol-forming material and a second sheet containing a heating material that is heated by the penetration of a varying magnetic field to heat the aerosol-forming material of the first sheet, the second sheet containing no aerosol-forming material.

In an exemplary embodiment, the aerosol material is a reconstituted or cellulosic or aerosol-forming material in the form of a gel.

In an exemplary embodiment, the aerosol structure does not include an aerosol material between the heating material and a reconstituted or cellulosic aerosol release material or a gel aerosol material.

In an exemplary embodiment, the reconstituted or cellulosic aerosolizing material or aerosolizing material in the form of a gel is in surface contact with the heating material.

In the exemplary embodiment, the second sheet is only a heating material.

In the exemplary embodiment, the layered structure is profiled.

In an exemplary embodiment, the heating material comprises one or more materials selected from the group consisting of an electrically conductive material, a magnetic material, and a magnetic electrically conductive material.

In an exemplary embodiment, the heating material comprises a metal or metal alloy.

In an exemplary embodiment, the heating material comprises one or more materials selected from the group consisting of aluminum, gold, iron, nickel, cobalt, conductive carbon, graphite, steel, unalloyed carbon steel, mild steel, stainless steel, ferritic stainless steel, copper and bronze.

In an exemplary embodiment, the first sheet contains reconstituted tobacco.

In an exemplary embodiment, the second sheet comprises aluminum foil.

In an exemplary embodiment, the aerosol forming structure comprises a wrapper wrapped around the assembled laminate structure.

In an exemplary embodiment, the aerosol-forming structure is substantially cylindrical.

A second aspect of the present invention provides an aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material; the aerosol-forming structure comprises an assembled laminate structure having a first sheet containing an aerosol-forming material, a second sheet containing a heating material, and a third sheet containing an aerosol-forming material, the second sheet being positioned between the first and third sheets, and the heating material is heated by the penetration of the varying magnetic field for heating the aerosol-forming material of the first and third sheets.

In an exemplary embodiment, the second sheet contains no aerosol material.

In an exemplary embodiment, the second sheet contains only heating material.

In the exemplary embodiment, the layered structure is profiled.

In an exemplary embodiment, the heating material comprises one or more materials selected from the group consisting of an electrically conductive material, a magnetic material, and a magnetic electrically conductive material.

In an exemplary embodiment, the heating material comprises a metal or metal alloy.

In an exemplary embodiment, the heating material comprises one or more materials selected from the group consisting of aluminum, gold, iron, nickel, cobalt, conductive carbon, graphite, steel, unalloyed carbon steel, mild steel, stainless steel, ferritic stainless steel, copper and bronze.

In an exemplary embodiment, the aerosol-forming material of the first sheet is a reconstituted or cellulosic or aerosol-forming material in the form of a gel.

In an exemplary embodiment, the first sheet contains reconstituted tobacco.

In an exemplary embodiment, the second sheet comprises aluminum foil.

In an exemplary embodiment, the aerosol-forming material of the third sheet is a reconstituted or cellulosic or aerosol-forming material in the form of a gel.

In an exemplary embodiment, the third sheet contains reconstituted tobacco.

In an exemplary embodiment, the aerosol forming structure comprises a wrapper wrapped around the assembled laminate structure.

In an exemplary embodiment, the aerosol-forming structure is substantially cylindrical.

A third aspect of the present invention provides an article for use with a device for heating an aerosol forming material to vaporize at least one component of an aerosol forming material, the article comprising an aerosol forming structure according to a first aspect of the present invention or an aerosol forming structure according to a second aspect of the present invention.

In an exemplary embodiment, the article comprises a filter for filtering the aerosol released from the aerosol-forming structure during use, and a connector with which the filter is held relative to the aerosol-forming structure.

A fourth aspect of the present invention provides a system for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material; the system comprises an article according to the third aspect of the present invention and a device for heating the aerosol-forming material of the article to vaporize at least one component of the aerosol-forming material; the device contains a heating zone for placing the product and a magnetic field generator for generating a changing magnetic field for penetration into the heating material of the product when the product is located in the heating zone.

A fifth aspect of the present invention provides a method of making an aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material; the method comprises: providing a layered structure, the layered structure having a first sheet containing an aerosol-forming material and a second sheet containing a heating material that is heated by the penetration of a varying magnetic field to heat the aerosol-forming material; and collecting the laminated structure to form the assembled laminated structure.

In an exemplary embodiment, the second sheet contains no aerosol material.

In an exemplary embodiment, the second sheet contains only heating material.

In an exemplary embodiment, the second sheet comprises aluminum foil.

In an exemplary embodiment, the aerosol-forming material of the first sheet is a reconstituted or cellulosic or aerosol-forming material in the form of a gel.

In an exemplary embodiment, the first sheet contains reconstituted tobacco.

In an exemplary embodiment, the laminate has a third sheet containing an aerosol forming material, the second sheet being positioned between the first and third sheets, and the heating material is heated by the penetration of a varying magnetic field to heat the aerosol forming material of the first and third sheets.

In an exemplary embodiment, the aerosol-forming material of the third sheet is a reconstituted or cellulosic or aerosol-forming material in the form of a gel.

In an exemplary embodiment, the third sheet contains reconstituted tobacco.

In an exemplary embodiment, picking up includes feeding the laminate through a tapering cone.

In an exemplary embodiment, picking up causes the layered structure to become substantially cylindrical.

In an exemplary embodiment, the method includes profiling the laminate prior to assembly.

In an exemplary embodiment, providing the laminate includes making the first sheet in contact with the second sheet.

In an exemplary embodiment, providing the layered structure includes contacting the third sheet with the second sheet.

In an exemplary embodiment, the method includes wrapping a wrapper around the assembled laminate to form a wrapped assembled laminate.

In an exemplary embodiment, the method includes separating the wrapped assembled laminate structure to provide a separate wrapped assembled laminate structure.

A sixth aspect of the present invention provides a method of manufacturing an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material; the method contains:

carrying out the method according to the fifth aspect of the present invention; and

attaching the filter to the assembled laminate with a connector that holds the filter relative to the assembled laminate.

Brief Description of Drawings

Below, by way of example only, a description of embodiments of the invention is given with reference to the accompanying drawings, in which:

in fig. 1 is a schematic side view of an example of an aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material;

in fig. 2 is a schematic sectional view of the aerosol forming structure of FIG. one;

in fig. 3 is a schematic partial sectional view of an example of a layered structure of an aerosol forming structure for use in an article for use with a device for heating an aerosol forming material to vaporize at least one component of an aerosol forming material;

in fig. 4 is a schematic partial sectional view of an example of a layered structure of another aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material;

in fig. 5 is a schematic partial sectional view of an example of a layered structure of another aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material;

in fig. 6 is a schematic partial cross-sectional view of an example of a layered structure of yet another aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material;

in fig. 7 is a schematic sectional side view of an example of another aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material;

in fig. 8 is a schematic cross-sectional side view of an example of an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material;

in fig. 9 is a schematic cross-sectional side view of an example of another article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material;

in fig. 10 is a schematic cross-sectional side view of an example of a system comprising the article of FIG. 9 and a device for heating the aerosol-forming material of the article in order to evaporate at least one component of the aerosol-forming material;

in fig. 11 is a block diagram of an example of a method for manufacturing an aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material in order to vaporize at least one component of the aerosol-forming material;

in fig. 12 is a block diagram of an example of another method of making an aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material; and

in fig. 13 is a block diagram of an example of a method for manufacturing an article for use with a device for heating an aerosol-forming material to vaporize at least one component of an aerosol-forming material.

Implementation of the invention

In the context of this document, the expression "aerosol-forming material" means materials that release volatile components when heated, usually in the form of vapor or aerosol. The "aerosol-forming material" can be a tobacco-containing material or a tobacco-containing material. The “aerosol-forming material” may, for example, contain one or more of the constituents which include tobacco itself, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco extract, homogenized tobacco, or tobacco substitutes. The aerosol-forming material can be in the form of ground tobacco, shredded tobacco, extruded tobacco, reconstituted aerosol-forming material, liquid, gel, gel-like sheet, powder or agglomerated material, and the like. The "aerosol material" may also contain other non-tobacco products which, depending on the product, may or may not contain nicotine. The "aerosol forming material" can contain one or more humectants, for example, glycerol or propylene glycol.

In the context of this document, the term "sheet" means an element whose width and length are significantly greater than its thickness.

In the context of this document, the indication that the sheet contains "no aerosol material" means that the sheet itself does not contain an aerosol material or does not consist of an aerosol material and is not covered or saturated with an aerosol material. However, this does not mean that the sheet cannot abut (directly or indirectly) or be attached to the sheet that contains the aerosol material.

In the context of this document, the term "assembled" includes crumpled, folded, folded or otherwise folded in any shape, whether regular or irregular. Accordingly, in the context of this document, the term "picking up" includes crushing, folding, bending or otherwise performing folding in any form, whether regular or irregular.

In the context of this document, the term "profiled" includes a plurality of substantially parallel corrugations or ridges and depressions.

In the context of this document, the term "heating material" or "heater material" refers to a material that is heated by the penetration of a changing magnetic field.

Induction heating is a process in which an electrically conductive object is heated by the penetration of a changing magnetic field. This process is described by Faraday's law of electromagnetic induction and Ohm's law. The induction heater may include an electromagnet and a device for passing a variable in magnitude current, such as an alternating current, through the electromagnet. When the electromagnet and the object to be heated are mutually positioned in a proper manner so that the resulting varying magnetic field generated by the electromagnet penetrates the object, one or more eddy currents are generated within the object. The object has resistance to the flow of electric currents. Therefore, when such eddy currents are generated in an object, the object's resistance opposes the flow of currents, causing the object to heat up. This process is called joule, ohmic or resistive heating. An object that can be inductively heated is known as a pantograph.

It has been found that when the pantograph is in the form of a closed electrical circuit, the magnetic interaction between the pantograph and the magnet during use is enhanced, leading to increased Joule heating.

Magnetic hysteresis heating is a process in which an object made of a magnetic material is heated by the penetration of a changing magnetic field into the object. A magnetic material can be thought of as containing many atomic-scale magnets or magnetic dipoles. When a magnetic field penetrates such a material, the magnetic dipoles align with the magnetic field. Therefore, when a changing magnetic field, such as an alternating magnetic field, such as generated by an electromagnet, penetrates the magnetic material, the orientation of the magnetic dipoles changes with the applied magnetic field. This reorientation of magnetic dipoles causes heat generation in the magnetic material.

When the object is both electrically conductive and magnetic, the penetration of the changing magnetic field into the object can cause both Joule heating and magnetohysteresis heating of the object. In addition, the use of a magnetic material can enhance the magnetic field, which can enhance Joule and magnetohysteresis heating.

In each of the above processes, when heat is generated in the object itself, and not by an external heat source due to the conduction of heat, a rapid increase in temperature in the object and a more uniform heat distribution can be achieved, in particular, due to the choice of the appropriate material and geometry of the object and the corresponding the magnitude, and orientation of the changing magnetic field relative to the object. In addition, when induction heating and magnetohysteresis heating do not require a connection between a variable magnetic field source and an object, design freedom can be increased, control over the heating profile is improved, and costs can be reduced.

FIG. 1 and 2 are schematic side and sectional views of an example of an aerosol forming structure according to an embodiment of the invention. The aero-forming structure 1 is intended to be inserted into an article, for example, article 100 shown in FIG. 8 and described below, and use with a device for heating the aerosol material to vaporize at least one component of the aerosol material.

The aerosol-forming structure 1 is substantially cylindrical and has a substantially circular cross-section (see FIG. 2), but in other embodiments, the aerosol-forming structure 1 may have an oval or elliptical or other than cylindrical cross-section. In some embodiments, the aerosol structure 1 may have, for example, a polygonal, quadrangular, rectangular, square, triangular, star-shaped, or irregular cross-section. In this embodiment, the aerosol-forming structure 1 is a rod. In some other embodiments, the aerosol forming structure may be tubular with a hollow interior.

In this embodiment, the aerosol forming structure 1 is elongated and has a longitudinal axis A-A. The length of the aerosol-forming structure 1 in the direction of the longitudinal axis A-A can be 40 to 150 millimeters, for example 70 to 120 millimeters. In other embodiments, the aerosol-forming structure 1 may be non-elongated. In some other such embodiments, the aerosol structure 1 also has an axial direction A-A perpendicular to the section of the aerosol structure 1 shown in FIG. 2. The width of the aerosol-forming structure 1, perpendicular to the axial direction A-A, can be 4 to 10 millimeters, for example, 5 to 8 millimeters. The circumference of the aerosol-forming structure 1, perpendicular to the axial direction A-A, can be 12 to 30 millimeters, for example, 16 to 25 millimeters.

The aerosol-forming structure 1 has a layered structure 10. FIG. 3 is a schematic partial cross-sectional view of a layered structure 10 of an aerosol forming structure 1. The layered structure 10 comprises a first sheet 11 and a second sheet 12. In some embodiments, the layered structure 10 is a laminate. In some embodiments, the first sheet 11 is bonded to the second sheet 12, for example, using an adhesive or chemical bond. Polyvinyl acetate (PVA) and ethylene vinyl acetate (EVA) adhesives can be used as examples. In other embodiments, the first sheet 11 may not be associated with the second sheet 12.

In this embodiment, the first sheet 11 contains an aerosol material. The aerosol forming material of the first sheet 11 may be any of the aerosol forming materials described herein, for example, a reconstituted aerosol material (eg, reconstituted tobacco) or a gel material. The first sheet 11 may comprise a substrate such as paper impregnated with or coated with an aerosol-forming material such as a gel. The aerosol-forming material of the first sheet 11 may be a cellulosic aerosol-forming material.

In this embodiment, the second sheet 12 contains a heating material that is heated by the penetration of a varying magnetic field. Specifically, the heating material is heated by the penetration of the varying magnetic field to heat the aerosol-forming material of the first sheet 11. In other words, the heating material is in thermal contact with the aerosol-forming material. Since the first and second sheets 11, 12 are part of the same layer structure 10, the heat generated in the second sheet 12 due to the penetration of the varying magnetic field is in the vicinity of the first sheet 11, and therefore, relatively efficient heating of the aerosol forming material of the first sheet can be achieved. 11. In some embodiments, the aerosol material of the first sheet 11 is in surface contact with the heating material of the second sheet 12. Thus, heat can be transferred directly from the heating material to the aerosol material. This can further increase the efficiency of heating the aerosol forming material of the first sheet 11. In other embodiments, the heating material may not have surface contact with the aerosol forming material. For example, in some embodiments, a thermally conductive barrier that does not contain heating material and aerosol forming material may separate the heating material from the aerosol forming material. In some embodiments, the thermal conductive barrier may be coated on the first sheet 11 or on the second sheet 12. The presence of such a barrier may be of interest to aid heat dissipation to reduce hot spots in the heating material.

In some embodiments in which the aerosol forming material of the first sheet 11 is reconstituted or a cellulosic or aerosol forming material in the form of a gel, the aerosol structure 1 may be free of aerosol forming material between the reconstituted, cellulosic or gel aerosol forming material of the first sheet 11 and the heating material of the second sheet 12. In some embodiments, such a structure has the advantage that a higher proportional proportion of the heat generated in the second sheet 12 is used to heat the aerosol-forming material of the first sheet 11 due to the penetration of the changing magnetic field into the heating material.

In this embodiment, the heating material is aluminum and the second sheet 12 is an aluminum foil sheet. However, in other embodiments, the heating material may include one or more of the materials described herein and / or the sheet 12 containing the heating material may take any of the forms described herein.

In this embodiment, the second sheet 12 does not contain aerosol material. In some embodiments, the second sheet 12 consists of only heating material. This does not apply to other embodiments, such as those described below with reference to FIG. 5 and 6. In other embodiments, the advantage of the absence of aerosol material in the second sheet 12 is that a greater proportion of the heat generated in the second sheet 12 is used to heat the aerosol material of the first sheet 11 due to the penetration of the variable magnetic field into the heating material.

As best shown in FIG. 2, the laminate 10 of the aerosol structure 1 is an assembled laminate 10. In other words, the laminate 10 has been assembled. Examples of methods for assembling the layered structure 10 are similarly described below. This gathering of the laminate 10 allows a greater proportional proportion of the second sheet 12 containing heating material to be positioned adjacent to the first sheet 11 containing the aerosol material to be heated, as compared, for example, to wrapping the second sheet 12 containing the heating material around the outside of the rod. from the collected aerosol material; or by placing a plate or rod of heating material in a relatively concentrated manner in the rod of the collected aerosol material. Accordingly, an improved heating efficiency of the aerosol-forming material of the first sheet 11 can be achieved. In addition, the sheet containing the aerosol-forming material can have a relatively large surface area in terms of volume, and the collection of the sheet containing the aerosol-forming material can leave a large proportion of the surface area of the sheet. exposed to the release of aerosol during use. In addition, the assembled sheet can define one or more flow paths along which the aerosol generated during use can exit the aerosol-forming structure.

In a variation of the embodiment of FIG. 1 - 3 layered structure can be profiled. FIG. 4 is a schematic partial cross-sectional view of an example of an assembled laminate structure of another aerosol forming structure according to an embodiment of the invention, in which embodiment the laminate is profiled. The assembled laminate 20 in FIG. 4 and in this case comprises a first sheet 21 containing an aerosol-forming material and a second sheet 22 containing a heating material that is heated by the penetration of a variable magnetic field to heat the aerosol-forming first sheet 21. In addition, the second sheet 22 does not contain aerosol-forming material. In some embodiments, the second sheet 22 consists of only heating material. In some variations of this embodiment, the first and second sheets 21, 22 may have any of the additional or alternative features described herein in relation to the first and second sheets 11, 12 shown in FIGS. 2 and 3.

Such profiling can assist in the collection of the laminate 20 and / or determine the collection of the laminate 20 during the manufacture of the aerosol-forming structure. For example, the distance that the laminate 20 is profiled can aid in defining the roll-up path of the laminate 20 upon gathering, and can aid in determining the porosity of the finished assembled laminate 20. Alternatively, or alternatively, such profiling can further increase the proportional proportion of the second sheet 22 which is close to the first sheet 21, which in turn increases the efficiency with which the aerosol-forming material of the first sheet 21 is heated during use. Some, most, or all of the plurality of substantially parallel corrugations or projections and depressions formed in the laminate 20 by shaping may be parallel to the axial direction A-A of the aerosol structure that contains the laminate 20.

In each of the embodiments shown in FIG. 1 to 3 and FIG. 4 and described herein, the assembled laminate contains two sheets 11, 12, 21, 22. However, in some embodiments, the assembled laminate may contain more than two sheets. FIG. 5 is a schematic partial cross-sectional view of an example of an assembled laminate structure 30 of another aerosol forming structure according to an embodiment of the present invention.

The assembled laminate 30 in FIG. 5 comprises a first sheet 1, a second sheet 2 and a third sheet 3. The second sheet 32 is disposed between the first sheet 31 and the third sheet 33. Each of the sheets to which the first and third sheets 31, 33 belong contains an aerosol forming material. The aerosol-forming material of the first sheet 31 can be any of the aerosol-forming materials described herein, for example, reconstituted tobacco or in the form of a gel. Similarly, the aerosol-forming material of the third sheet 33 can be any of the aerosol-forming materials described herein, such as reconstituted tobacco or in the form of a gel. One or each of the first and third sheets 31, 33 may be a cellulosic aerosol forming material.

The second sheet 32 contains a heating material that is heated by the penetration of a varying magnetic field to heat the aerosol forming material of the first and third sheets 31, 33. The positioning of the second sheet 32 between the first and third sheets 31, 33 allows a larger proportion of the total surface area of the second sheet 32 to be located next to the sheet 31, 33 containing the aerosol-forming material. This in turn allows heat energy emitted from both surfaces of the second sheet 22 during use to heat the aerosol forming material of the laminate 30.

In some embodiments, the second sheet 32 is free of aerosol material. In some embodiments, the second sheet 32 itself may comprise an aerosol-forming material, for example, by being coated with an aerosol-forming material or saturating the second sheet 32 with an aerosol-forming material or by interweaving an aerosol-forming material into the sheet. In some variations of this embodiment, one or each of the first and third sheets 31, 33 may have any of the additional or alternative features described herein with respect to the first sheet 11 shown in FIG. 2 and 3. In some variations of this embodiment, the second sheet 32 may have any of the additional or alternative features described herein with respect to the second sheet 12 shown in FIG. 2 and 3.

In a variation of the embodiment of FIG. 5 the layered structure can be profiled. FIG. 6 is a schematic partial sectional view of an example of an assembled laminate structure of another aerosol forming structure according to an embodiment of the invention. The assembled laminate 40 in FIG. 6 is the same as the assembled laminate 30 in FIG. 5, except that the assembled laminate 40 in FIG. 6 is profiled. The layered structure 40 in FIG. 6 and in this case comprises first and third sheets 41, 43 containing the aerosol material and again contains between them a second sheet 42 containing a heating material that is heated by the penetration of a varying magnetic field to heat the aerosol material of the first and third sheets 41, 43. Any of the possible variations of the embodiment of FIG. 5 can be implemented in relation to the embodiment of FIG. 6 to create other embodiments.

FIG. 7 is a schematic cross-sectional side view of an example of another aerosol forming structure according to an embodiment of the invention. The aerosol-forming structure 5 in FIG. 7, and in this case, is essentially cylindrical, with a substantially circular cross-section and longitudinal axis A-A. The length and / or width of the aerosol forming structure 5 can be, for example, any of the lengths and / or widths specified herein for the aerosol forming structure of FIG. 1 to 3. In other embodiments, the aerosol-forming structure 5 may have a different cross-section, for example, any of those indicated herein, or different from a cylindrical cross-section, or it may not be elongated.

The aerosol-forming structure 5 in FIG. 7 has an assembled laminate structure 50. The assembled laminate structure 50 may be the same as any of the assembled laminate structures 10, 20, 30, 40 described above, or any of their variations described herein.

The aerosol structure 5 also includes a wrapper 51 that is wrapped around the assembled laminate 50. The wrapper 51 surrounds the assembled laminate 50, avoids or prevents unraveling or unwinding of the laminate 50, and protects the assembled laminate 50 from damage during transport and use. During use, the wrap 51 may also assist in directing air flow into and through the assembled laminate 50 and may assist in directing the flow of vapor or aerosol through and out of the assembled laminate 50.

In this embodiment, the wrapper 51 is wrapped around the assembled laminate structure 50 so that the free ends of the wrapper 51 overlap. Wrap 51 may form all or most of the peripheral outer surface of aerosol structure 5. Wrap 51 may be made of any suitable material such as paper, paperboard, recovered aerosol material (such as reconstituted tobacco), or heating material (such as metal foil or metal alloy foil such as aluminum foil). The wrapper 51 may also contain glue (not shown) that bonds the overlapping free ends of the wrapper 51 together. The glue may contain one or more components such as gum arabic, natural or synthetic gums, starches, and varnish. The glue helps to prevent the overlapping free ends of the wrapper 51 from separating. In other embodiments, the glue may not be used or the wrapper may be different from the wrapper described.

Any of the aerosol-forming structures described or depicted herein may itself serve as an article for use with a device for heating the aerosol-forming material, such as the device 500 shown in FIG. 10 and described below, for the purpose of vaporizing at least one component of the aerosol-forming material. However, in other embodiments, the article may include an aerosol-forming structure in conjunction with one or more other components.

For example, in FIG. 8 is a schematic cross-sectional side view of an example of an article according to an embodiment of the invention. Item 100 in FIG. 8 contains the aerosol-forming structure 1 of FIG. 1 - 3. However, in other embodiments, the aerosol forming structure of the article may be, for example, any other of the aerosol forming structures described herein.

The article 100 is substantially cylindrical with a substantially circular cross-section, but in other embodiments, the article 100 may have an oval or elliptical cross-section, or a cross-section other than cylindrical. In some embodiments, the article 100 may have, for example, a polygonal, quadrangular, rectangular, square, triangular, star-shaped, or irregular cross-section. In this embodiment, the article 100 is a rod. In some other embodiments, the article may be tubular with a hollow interior.

In this embodiment, the article 100 is elongated and has a longitudinal axis B-B. The longitudinal axis B-B of the article 100 coincides with the longitudinal axis A-A of the aerosol forming structure 1. The length of the article 100 in the direction of the longitudinal axis B-B may be 40 to 150 millimeters, for example 70 to 120 millimeters. In other examples, article 100 may be non-elongated. In some other such embodiments, the article 100 also has an axial direction B-B perpendicular to the article 100. The width of the article 100, which is perpendicular to the axial direction B-B, may be 4-10 millimeters, such as 5-8 millimeters. The circumference of the aerosol-forming structure 1, perpendicular to the axial direction B-B, can be 12 to 30 millimeters, for example, 16 to 25 millimeters.

Item 100 in FIG. 8 also contains filter 1b. The filter 1b serves to filter the aerosol or vapor released during use from the aerosol-forming structure of the article 100. The filter 1b can be of any type used in the tobacco industry. For example, filter 1b can be made from cellulose acetate. In this embodiment, the filter 1b is substantially cylindrical, with a substantially circular cross-section and a longitudinal axis. In other embodiments, the filter 1b may have a different cross-section, such as any of the cross-sections described herein in relation to aerosol-forming structures, or other than a cylindrical cross-section, or it may not be elongated.

In this embodiment, the filter 1b is adjacent to the longitudinal end of the aerosol forming structure 1 and is axially aligned with the aerosol forming structure 1. In other embodiments, the filter 1b may be located at a distance from the aerosol forming structure, for example by a gap and / or one or more other components articles 100. For example, the other component (s) is an additive or aroma source (eg, a capsule or string containing an additive or flavor) and may be retained, for example, by a body of filter media or between two bodies of filter media.

The article 100 also includes a wrapper 1c wrapped around the aerosol structure 1 and the filter 1b to hold the filter 1b relative to the aerosol structure 1. The wrapper 1c surrounds the aerosol structure and the filter 1b, avoiding or preventing unraveling or unwinding of the layered structure of the aerosol structure 1 and helps to protect assembled laminated structure from damage during transportation and use. During use, the wrap 1c can also assist in directing air flow into and through the aerosol structure 1, and may assist in directing the flow of vapor or aerosol through and out of the aerosol structure 1.

In this embodiment, the wrapper 1c is wrapped around the aerosol structure 1 and the filter 1b so that the free ends of the wrapper 1c overlap each other. Wrap 1c can form all or most of the peripheral outer surface of article 100. Wrap 1c can be made from any suitable material such as paper, paperboard, recovered aerosol material (eg, recovered tobacco). The wrapper 1c may also contain an adhesive (not shown), for example one of the adhesives described elsewhere in this document, which joins the overlapping free ends of the wrapper 1c together. The adhesive helps to prevent the overlapping free ends of the 1c wrapper from separating. In other embodiments, the adhesive may not be used or the wrapper 1c may be different from the wrapper described. In other embodiments, the filter 1b can be held relative to the aerosol structure 1 with a connector other than the wrapper 1c, for example with an adhesive.

FIG. 9 is a schematic cross-sectional side view of an example of another article according to an embodiment of the invention. Item 200 in FIG. 9 is the same as the product in FIG. 8, except that the article 200 comprises the aerosol forming structure 5 of FIG. 7 instead of the aerosol-forming structure 1. Accordingly, the wrapper 1c of the article 200 in FIG. 9 is wrapped around the wrapper 51 of the aerosol forming structure 5 and the filter 1b to hold the filter 1b relative to the aerosol forming structure 5. Any of the possible variations of the article described herein in FIG. 8 may be implemented with respect to article 200 of FIG. 9 to create other embodiments.

In some embodiments, the article may be used in conjunction with a device for heating the aerosol-forming material of the article to vaporize at least one component of the aerosol-forming material. The device may comprise a heating zone for positioning the article and a magnetic field generator for generating a variable magnetic field penetrating into the heating material of the article when the article is located in the heating zone for heating the aerosol-forming material of the article.

For example, in FIG. 10 is a schematic cross-sectional side view of an example of a system according to an embodiment of the invention. System 1000 includes the article 200 of FIG. 9 and a device 500 for heating the aerosol-forming material of the article 200 in order to vaporize at least one component of the aerosol-forming material. In other embodiments, item 200 may be replaced by any of the items described herein. In this embodiment, the device 500 is a tobacco heating means (also known in the art as a tobacco heating device or a non-combustion heated device).

Briefly, the apparatus 500 includes a heating zone 511 for housing the article 200 and a magnetic field generator 512 for generating a varying magnetic field penetrating the heating material of the article 200 when the article 200 is located in the heating zone 511.

In particular, the device 500 of this embodiment includes a housing 510 and a mouthpiece 520. The mouthpiece 520 can be made of any suitable material, for example, plastic, cardboard, cellulose acetate, paper, metal, glass, ceramic, or rubber. The mouthpiece 520 defines a passage 522 passing therethrough. The mouthpiece 520 is positioned relative to the body 510 so that it closes the opening into the heating zone 511. When the mouthpiece 520 is positioned relative to the body 510 in this manner, the conduit 522 of the mouthpiece 520 acts as a passageway allowing vaporizable material to pass from the aerosol-forming material of the article placed in the heating chamber 511 to the outside of the device 500. In this embodiment, the mouthpiece 520 forms a detachable connection with the body 510. In other embodiments, the mouthpiece 520 and the body 520 may be permanently connected to each other by a hinge or flexible member. In some embodiments, such as embodiments in which the article itself includes a mouthpiece, the mouthpiece 520 of the device 500 may not be used.

The device 500 can detect an air inlet (not shown) that fluidly connects the heating zone 511 to the outside of the device 500. Such air inlet can be defined by the housing 510 and / or mouthpiece 520. The user can inhale the vaporized component (s) of the aerosolizing material by puffing vaporized component (s) through passage 522 of mouthpiece 520. When vaporizable component (s) are removed from article 200, air may be drawn into heating zone 511 through air inlet of device 500.

In this embodiment, the housing 510 includes a heating zone 511. In this embodiment, the heating zone 511 includes a recess 511 for receiving at least a portion of the article 200. In other embodiments, the heating zone 511 may be different from the recess, for example, it may be a shelf, surface or protrusion and may require mechanical mating with the article. to interact with the product or place it. In this embodiment, the heating zone 511 is elongated and sized and shaped to accommodate the entire article 200. In other embodiments, the heating zone 511 may be sized to accommodate only a portion of the article 200.

In this embodiment, the magnetic field generator 512 includes a power supply 513, a coil 514, a device 516 for passing a variable electric current, such as an alternating current, through the coil 514, a controller 517, and a user interface 518 for performing user operations with the controller 517.

The power supply 513 of this embodiment is a rechargeable battery. In other embodiments, the power supply 513 may be other than a rechargeable battery and may be a non-rechargeable battery, a capacitor, a battery-capacitor hybrid, or a mains connection.

Coil 514 can be of any suitable shape. In this embodiment, coil 514 is a helical coil of an electrically conductive material such as copper. In some embodiments, the magnetic field generator 512 may include a magnetically permeable core around which a coil 514 is wound. Such a magnetically permeable core concentrates the magnetic flux generated by the coil 514 during use and increases the magnetic field strength. The magnetically permeable core can be made of iron, for example. In some embodiments, the magnetically permeable core may only extend partially along the length of the coil 514 to concentrate the magnetic flux only in certain areas. In some embodiments, the coil may be a flat coil. In other words, the coil can be a two-dimensional spiral. In this embodiment, coil 514 surrounds heating zone 511. The coil 514 extends along a longitudinal axis that is substantially aligned with the longitudinal axis of the heating zone 511. The aligned axes are aligned with each other. In a variation of this embodiment, the aligned axes may be parallel or tilted to each other.

In this embodiment, the device 516 for passing a variable current through the coil 514 is electrically connected between the power supply 513 and the coil 514. In this embodiment, the controller 517 is also electrically connected to the power supply 513 and is in communication with the device 516 to control the device 516. B Specifically, in this embodiment, the controller 517 serves to control the device 516 so as to control the supply of power from the power supply 513 to the coil 514. In this embodiment, the controller 517 comprises an integrated circuit (IC), such as an integrated circuit on a printed circuit board (PCB) ... In other embodiments, the controller may have a different shape. In some embodiments, a device may have a single electrical or electronic component comprising a device 516 and a controller 517. The controller 517 is controlled in this embodiment via a user interface 518. In this embodiment, the user interface 518 is located outside the housing 510. The user interface 518 may include a push button, a trigger switch, a touch screen dial, or the like. In other embodiments, the user interface 518 may be remote and connected to the rest of the device wirelessly, such as via Bluetooth.

In this embodiment, the control of the user interface 518 causes the controller 517 to create an environment where the device 516 causes an alternating current to flow through the coil 514. This causes the coil 514 to generate an alternating magnetic field. Coil 514 and heating zone 511 of device 500 are positioned in relation to each other so that when the article 200 is located in the heating zone 511, the varying magnetic field generated by the coil 514 penetrates the heating material of the article 200. In this embodiment, the heating material is an electrically conductive material and therefore such penetration causes one or more eddy currents to be generated in the heating material. The electrical resistance of the heating material opposing the flow of eddy currents in the heating material causes the heating material to be heated by Joule heat. When the heating material is a magnetic material, the orientation of the magnetic dipoles in the heating material changes with a change in the applied magnetic field, causing heat to be generated in the heating material.

The device 500 of this embodiment includes a temperature sensor 519 for detecting the temperature of the heating zone 511. The temperature sensor 519 is in communication with the controller 517 so that the controller 517 can monitor the temperature of the heating zone 511. Based on one or more signals received from the temperature sensor 519, the controller 517, if necessary, causes the device 516 to adjust the characteristic of the alternating electric current passing through the coil to maintain the temperature of the heating zone 511 in a predetermined temperature range. The specified characteristic can be, for example, the amplitude or frequency, or the duration of the on. Within a predetermined temperature range, during use, the aerosol material within the article placed in the heating zone 511 is sufficiently heated to vaporize at least one component of the aerosol material without combustion of the aerosol material. Accordingly, the controller 517 and the apparatus 500 as a whole are configured to heat the aerosol material to vaporize at least one component of the aerosol material without combusting the aerosol material. In some embodiments, the temperature range is from about 50 ° C to about 300 ° C, for example, from about 50 ° C to about 250 ° C, from about 50 ° C to about 150 ° C, from about 50 ° C to about 120 ° C, about 50 ° C to about 100 ° C, about 50 ° C to about 80 ° C, or about 60 ° C to about 70 ° C. In some embodiments, the temperature range is from about 170 ° C to about 220 ° C. In other embodiments, the temperature range may differ from this range. In some embodiments, the upper limit of the temperature range may be higher than 300 ° C. In some embodiments, the temperature sensor 519 may not be used. In some embodiments, the heating material may have a Curie point temperature selected based on the maximum temperature to which it is desired to heat the heating material so as to prevent or stop further heating above that temperature by inductively heating the heating material.

FIG. 11 and 12 are block diagrams of respective examples of methods for making an aerosol-forming structure.

The method in FIG. 11 is suitable for making any of the aerosol-forming structures described herein. This method includes providing a layered structure 11a, said layered structure having a first sheet 11, 21, 31, 41 containing an aerosol forming material and a second sheet 12, 22, 32, 42 containing a heating material that is heated by penetration. a changing magnetic field for heating the aerosol-forming material; and collecting 11b of the laminated structure to form the assembled laminated structure 10, 20, 30, 40.

The second sheet 12, 22, 32, 42 may be free of aerosolizing material. The second sheet 12, 22, 32, 42 may only consist of heating material. In some embodiments, the second sheet comprises an aerosolizing material.

Collecting 11b may include feeding the laminate through a tapered cone. Collecting 11b can cause the laminate structure to be substantially cylindrical. The method also comprises profiling the laminated structure prior to collecting 11b. Providing the laminate 11a may include providing conditions for bringing the first sheet 11, 21, 31, 41 into contact with the second sheet 12, 22, 32, 42. This method may include wrapping a wrap around the assembled laminate to form a wrapped assembled layered structure. In some embodiments, the method includes separating the wrapped assembled laminate structure to form a separate wrapped assembled laminate structure.

The method in FIG. 12 is suitable for making an aerosol forming structure that has an assembled laminate structure comprising three sheets, such as the sheets shown in FIG. 5 and 6.

This method includes providing a layered structure, said layered structure having a first sheet 31, 41 containing an aerosol material, a second sheet 32, 42 containing a heating material that is heated by the penetration of a varying magnetic field to heat the aerosol material, and a third a sheet containing an aerosol material, wherein a second sheet 32, 42 is disposed between the first and third sheets 31, 33, 41, 43, and the heating material is heated by the penetration of a varying magnetic field to heat the aerosol material of the first and third sheets 31, 33, 41, 43.

In some embodiments, the second sheet 32, 42 is free of aerosol material. In some embodiments, the second sheet 32, 42 contains only heating material. In some embodiments, the second sheet comprises an aerosol forming material.

In this embodiment, providing includes providing conditions 12a to bring the first sheet 31, 41 into contact with the second sheet 32, 42. The first and second sheets 31, 41, 32, 42 may be supplied from respective feeding means, for example, from respective bobbins (not shown) before being brought into contact with each other. In other embodiments, the first and second sheets may already be in contact with each other, and therefore the method does not include the described step. Preferably, the joined first and second sheets 31, 41, 32, 42 (eg, in the form of a laminate) can come from a suitable supply means, for example from a corresponding reel (not shown).

In this embodiment, provisioning includes creating conditions 12b for bringing the third sheet 33, 43 into contact with the second sheet 32, 42. The third sheet 33, 43 may come from a feeding means, such as a reel (not shown), prior to bringing into contact with the second sheet 32, 42. In other embodiments, the second and third sheets may already be in contact with each other, and therefore the method does not include the described step. Preferably, the connected second and third sheets 32, 33, 42, 43 (eg, in the form of a laminate) can come from a supply means, for example from a reel (not shown). Alternatively, the connected first, second and third sheets 31, 32, 33, 41, 42, 43 (eg, in the form of a laminate) can come from a supply means, for example from a reel (not shown).

In embodiments in which the aerosol forming structure to be produced is to have a profiled laminate structure, for example, as shown in FIG. 6, the method includes shaping 12c an existing laminate structure. The profiling can be accomplished by transporting the laminate between a pair of cooperating shaping rollers that contact and shape the laminate as it passes. In other embodiments in which the aerosol structure to be produced is to have a non-profiled laminate structure, for example, as shown in FIG. 5, this method can be omitted.

The method comprises collecting 12d of the laminated structure to form the assembled laminated structure 30, 40. In embodiments in which the laminated structure is to be profiled, the profiling 12c may be performed prior to collecting 12d. Collecting 12d may include transporting the laminate 30, 40 through the tapered cone. In other embodiments, collecting 12d may include another process, such as compressing the laminate 30, 40 between three-dimensional bodies or plates that move relative to one another, or twisting (eg, in a spiral shape). In embodiments in which the laminate is corrugated, picking can be performed in a direction substantially perpendicular to the direction of the corrugations or projections or depressions present in the laminate as a result of the shaping.

Gathering 12d can cause the laminated structure 30, 40 to be substantially cylindrical. This may be due to the shape of the tapering cone, if used. In other embodiments, gathering 12d may cause the laminated structure 30, 40 to be shaped that is not cylindrical.

In this embodiment, the method includes wrapping 12e a wrapper 51 around the assembled laminate 30, 40 to form a wrapped assembled laminate. The wrapper 51 may come from a supply means (eg, a reel) and is wrapped around the assembled laminate 30, 40 using a headset or a closed conveyor. The wrapper 51 may contain glue that can be applied thereto before or during wrapping 12e, so that when opposite free ends of the wrapper 51 overlap, the glue bonds the opposite free ends to each other. This method also includes passing the wrapped assembled laminate structure through or near a drying device to dry the adhesive. As indicated herein, in some embodiments, such a wrapper may not be used. In other words, the assembled layered structure may not contain a wrapper. As such, the method may not include such wrapping 12e.

In this embodiment, the method comprises separating 12f the wrapped assembled laminate to form a separate wrapped assembled laminate for use in an article, said article being used with a device for heating the aerosol material to vaporize at least one component of the aerosol forming material. In embodiments in which wrap 12e is not used, the method may comprise splitting 12f of the assembled laminate to form a separate assembled laminate for use in an article. Separation can involve cutting, for example with a circular cutter. In some other embodiments, cutting 12f may be omitted. For example, in some embodiments, the assembled or wrapped assembled laminate structure currently being manufactured by the process may already be sized to suit its use in an article without the need for separation.

FIG. 13 shows a block diagram of an example of a method for manufacturing an article for use with a device for heating an aerosol-forming material to vaporize at least one component of the aerosol-forming material. The method in FIG. 13 includes performing 13a of the method of FIG. 11 or FIG. 12 (or any variation thereof described herein) and coupling 13b of the assembled laminate filter using a connector that holds the filter relative to the assembled laminate. The filter can be, for example, filter 1b described above. The connector, for example, can be any of the connectors described herein, such as one of the wrappers 1c described.

In some embodiments, the heating material is aluminum. However, in other embodiments, the heating material may comprise one or more materials selected from the group consisting of an electrically conductive material, a magnetic material, and a magnetic electrically conductive material. In some embodiments, the heating material may comprise a metal or metal alloy. In some embodiments, the heating material may comprise one or more materials selected from the group consisting of aluminum, gold, iron, nickel, cobalt, conductive carbon, graphite, steel, unalloyed carbon steel, mild steel, stainless steel, ferritic stainless steel, copper and bronze. In other embodiments, other heating material (s) may be used.

In some embodiments, the sheet containing the heating material is free of holes or breaks. In some embodiments, the sheet containing the heating material is a foil such as a metal foil or a metal alloy foil such as an aluminum foil. However, in some embodiments, the sheet containing the heating material may have holes or breaks. For example, in some embodiments, the sheet containing the heating material can be a mesh, a perforated sheet, or a perforated foil such as a metal perforated foil or a perforated metal alloy foil such as a perforated aluminum foil.

In some embodiments, such as embodiments in which the heating material comprises iron, such as steel (such as mild steel or stainless steel), or aluminum, the sheet containing the heating material may be coated to prevent corrosion or oxidation of the heating metal. during use. Such a plating, for example, can be nickel plating, gold plating or ceramic plating, or an inert polymer plating. In some embodiments, the sheet containing the heating material is nickel-plated aluminum foil.

The heating material may have a skin depth, which is the outer zone within which most of the induced electric current occurs and / or most of the induced reorientation of the magnetic dipoles occurs. Provided that the heating material is relatively thin, a larger proportional proportion of the magnetic material can be heated by a given varying magnetic field as compared to a heating material having a relatively greater depth or thickness compared to other dimensions of the heating material. In this way, more efficient use of the material is ensured and, in turn, costs are reduced.

In some embodiments, the aerosol material comprises tobacco. However, in other embodiments, the aerosol material may be tobacco, may be substantially all tobacco, may contain tobacco and an aerosol material other than tobacco, may contain an aerosol material other than tobacco, or may be tobacco free. In some embodiments, the aerosol-forming material may contain a vapor or aerosol generating agent or humectant, such as glycerol, propylene glycol, triacetin, or diethylene glycol. In some embodiments, the aerosol material is a non-liquid aerosol material and the device is configured to heat the non-liquid aerosol material to vaporize at least one component of the aerosol material.

In some embodiments, the article 100, 200 is a consumable article. After all, or substantially all, of the vaporizable components of the aerosol forming material in the article 100, 200 have been used up, the user can remove the article 100, 200 from the heating zone 511 of the device 500 and discard the article 100, 200. Subsequently, the user can reuse the device 500 s. other articles 100, 200. However, in other appropriate embodiments, the article may be non-consumable and the device and article may be disposed of after the vaporizable components of the aerosol-forming material have been consumed.

In some embodiments, items 100, 200 are sold, supplied, or otherwise provided to a user separately from the device 500 with which the item 100, 200 is used. However, in some embodiments, the device 500 and one or more items 100, 200 may be shipped together as systems such as a kit or assembly, possibly with additional components such as cleaning tools.

To solve various problems and improve the current state of the art, the entire content of this application is accompanied by a description of various embodiments with which the claimed invention can be implemented in practice, and which offer the best aerosol-forming designs for installation in articles for use with a device for heating an aerosol-forming material, article for use with a device for heating an aerosol-forming material for evaporation of at least one component of an aerosol-forming material, methods of manufacturing an aerosol-forming structure for use in an article for use with a device for heating an aerosol-forming material for evaporation of at least one component of an aerosol-forming material, manufacturing methods articles for use with a device for heating the aerosol-forming material to vaporize at least one component of the aerosol-forming material, and systems containing such a product and such a device. The advantages and features of the embodiments are presented by way of example only and are not exhaustive and / or exclusive. They are intended only to facilitate the understanding and study of the claimed and otherwise presented features. It should be appreciated that advantages, embodiments, examples, functions, features, structures and / or other aspects of the invention are not construed as limiting the invention as defined by the claims, or limiting the equivalents of the claims, and that other embodiments may be used and modifications to be made without departing from the scope and / or spirit of the invention. Various embodiments may suitably comprise, consist of, or essentially consist of various combinations of the described elements, components, features, parts, steps, means, etc. In addition, the disclosure includes other inventions that are not claimed in the present description, but may be claimed in the future.

Claims (24)

1. A system for heating the aerosol-forming material in order to evaporate at least one component of the aerosol-forming material, comprising: aerosol-forming structure containing: assembled layered structure having: the first sheet containing the aerosol material, and a second sheet containing a heating material that is heated by the penetration of a varying magnetic field to heat the aerosol-forming material of the first sheet, the second sheet containing no aerosol-forming material, and a device for heating the aerosol-forming material of the aerosol-forming structure in order to evaporate at least one component of the aerosol-forming material, the device comprising: a heating zone for placing the aerosol-forming structure and a magnetic field generator for generating a varying magnetic field for penetration into the heating material of the aerosol-forming structure when the aerosol-forming structure is located in the heating zone. 2. The system of claim 1, wherein the aerosol material is a reconstituted, cellulosic or aerosol-forming material in the form of a gel. 3. The system of claim. 2, wherein the aerosol structure does not comprise an aerosol material between the heating material and a reconstituted or cellulosic aerosol or gel aerosol material. 4. The system of claim 2 or 3, wherein the recovered or cellulosic aerosol or gel aerosol is in surface contact with the heating material. 5. The system according to any one of paragraphs. 1-4 containing: assembled layered structure having: a third sheet containing an aerosol-forming material; wherein the second sheet is positioned between the first and third sheets, and the heating material is heated by the penetration of the varying magnetic field to heat the aerosol forming material of the first and third sheets. 6. The system according to any one of paragraphs. 1–5, in which the layered structure is profiled. 7. System according to any one of paragraphs. 1-6, in which the heating material comprises one or more materials selected from the group consisting of an electrically conductive material, a magnetic material, and a magnetic electrically conductive material. 8. System according to any one of paragraphs. 1-7, in which the heating material contains a metal or metal alloy. 9. System according to any one of paragraphs. 1-8, in which the heating material contains one or more materials selected from the group consisting of aluminum, gold, iron, nickel, cobalt, conductive carbon, graphite, steel, unalloyed carbon steel, mild steel, stainless steel, ferritic stainless steel , copper and bronze. 10. System according to any one of paragraphs. 1-9, in which the first sheet contains reconstituted tobacco. 11. System according to any one of paragraphs. 1-10, in which the second sheet contains aluminum foil. 12. The system according to any one of paragraphs. 1-11, containing a wrapper wrapped around the assembled layered structure. 13. System according to any one of paragraphs. 1-12, in which the aerosol-forming structure is substantially cylindrical. 14. System according to any one of paragraphs. 1-13, comprising a filter for filtering the aerosol released from the aerosol-forming structure during use, and a connector with which the filter is held relative to the aerosol-forming structure.

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