Aerosol-generating article, method for manufacturing an aerosol-generating article, and aerosol-generating system

Abstract

To provide an aerosol generating article which is easy to manufacture and which enables characteristics of aerosol generated during use of the article to be optimized.SOLUTION: An aerosol generating article 1 includes an aerosol generating material 10 having a first region 12 and a second region 14, and an inductively heatable susceptor 22 in the first region 12. The first region 12 can be located upstream or downstream of the second region 14 relative to an aerosol flow direction within the article 1.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates generally to aerosol-generating articles, and more particularly to aerosol-generating articles for use in aerosol-generating devices for heating the aerosol-generating article to generate an aerosol for a user to inhale. Embodiments of the present disclosure also relate to methods for making aerosol-generating articles and aerosol-generation systems. [Background technology]

[0002] Devices that generate inhalable aerosols by heating, rather than burning, aerosol-generating materials have become popular with consumers in recent years.

[0003] Such devices can provide heat to the aerosol-generating material using one of several different techniques. One such technique is to provide an aerosol-generating device that uses an induction heating system into which a user can removably insert an aerosol-generating article containing the aerosol-generating material. In such devices, an induction coil is provided in the device and an inductively heatable susceptor is provided in the aerosol-generating article. When a user activates the device, electrical energy is supplied to the induction coil, which generates an alternating current electromagnetic field. The susceptor couples with the electromagnetic field to generate heat, which is transferred, for example by conduction, to the aerosol-generating material, which heats up and generates an aerosol. Summary of the Invention [Problem to be solved by the invention]

[0004] The characteristics of the aerosol generated by an aerosol generating device depend on several factors, including the configuration of the aerosol-generating article used in the aerosol generating device. Thus, there is a need to provide an aerosol-generating article that is easy to manufacture and allows for optimization of the characteristics of the aerosol generated during use of the article. [Means for solving the problem]

[0005] According to a first aspect of the present disclosure, an aerosol-generating material having a first region and a second region; an inductively heatable susceptor in a first region; An aerosol-generating article is provided, comprising:

[0006] According to a second aspect of the present disclosure, there is provided a method for manufacturing an aerosol-generating article comprising an aerosol-generating material having a first region and a second region, the method comprising the step of positioning an inductively heatable susceptor in the first region.

[0007] The aerosol-generating article is for use in an aerosol-generating device to heat the aerosol-generating material without burning the aerosol-generating material to volatilize at least one component of the aerosol-generating material, thereby generating a vapor or aerosol for inhalation by a user of the aerosol-generating device.

[0008] Generally speaking, a vapor is a substance that is in the gas phase below its critical temperature, meaning that the vapor can be condensed into a liquid by increasing the pressure without decreasing the temperature, while an aerosol is a suspension of fine solid particles or liquid droplets in air or another gas. However, as used herein, the terms "aerosol" and "vapor" are used specifically to describe aerosols. It should be noted that the terms "inhalable medium" and "inhalable fluid" may be used interchangeably to refer to the form of inhalable medium generated for inhalation by a user.

[0009] The aerosol-generating article is easy to manufacture because the inductively heatable susceptor can be easily inserted into the first region.

[0010] The aerosol-generating material can have a first end and a second end, and can have a midpoint between the first end and the second end.

[0011] In one embodiment, the first region can be positioned upstream of the second region relative to the direction of aerosol flow within the article. By providing an inductively heatable susceptor only in the upstream first region, the aerosol-generating material in the first region is heated by the heat generated by the inductively heatable susceptor to generate an aerosol. The aerosol then flows through the aerosol-generating material in the second region downstream of the first region, which helps the aerosol cool and condense to form a vapor or aerosol suitable for inhalation by a user of the aerosol generating device. As the aerosol flows through the second region, the flavor characteristics of the aerosol are also enhanced by the aerosol-generating material in the second region, thereby ensuring that the characteristics of the aerosol or vapor generated during use of the article are optimized.

[0012] The first region can extend from the first end to a midpoint, and the second region can extend from the midpoint to the second end. The inductively heatable susceptor can include an elongated portion extending from the first end to the midpoint. This configuration ensures that the inductively heatable susceptor extends completely through the first region, ensuring that the aerosol-generating material in the first region is most effectively heated by heat transferred from the inductively heatable susceptor.

[0013] In another embodiment, the first region can be positioned downstream of the second region relative to the direction of aerosol flow within the article. By providing an inductively heatable susceptor only in the downstream first region, the aerosol-generating material in the first region is heated by the heat generated by the inductively heatable susceptor to generate an aerosol. As air flows through the upstream second region, flavor compounds are released from the aerosol-generating material in the second region and entrained in the air before it flows through the downstream first region, thereby enhancing the characteristics of the aerosol or vapor generated during use of the article. Because the inductively heatable susceptor is not located in the upstream second region and therefore not visible from the first end, the appearance of the aerosol-generating article is also improved. Positioning the inductively heatable susceptor in the downstream first region also ensures that the inductively heatable susceptor does not become detached from the aerosol-generating material, for example, by falling off the first end.

[0014] The first region can extend from the second end to a midpoint, and the second region can extend from the midpoint to the first end. The inductively heatable susceptor can include an elongated portion extending from the second end to the midpoint. This configuration ensures that the inductively heatable susceptor extends completely through the first region, ensuring that the aerosol-generating material in the first region is most effectively heated by heat transferred from the inductively heatable susceptor.

[0015] The inductively heatable susceptor may extend in a direction substantially parallel to the longitudinal direction of the aerosol-generating article, this configuration minimizing resistance to air flow through the aerosol-generating article.

[0016] The inductively heatable susceptor may be tubular. The use of a tubular susceptor ensures that heat is generated efficiently in the first region because the tubular shape of the susceptor provides a closed circular electrical path suitable for the generation of eddy currents.

[0017] The wall thickness of the tubular inductively heatable susceptor can be 50 μm to 500 μm, typically 75 μm to 300 μm, and more typically 100 μm to 200 μm. In one example, the wall thickness can be approximately 150 μm. Having a wall thickness within these ranges facilitates insertion of the tubular inductively heatable susceptor into the first region of the aerosol-generating material. For example, if the wall thickness is too thin, the tubular inductively heatable susceptor may deform upon insertion into the aerosol-generating material. On the other hand, if the wall thickness is too thick, insertion of the tubular inductively heatable susceptor may be difficult, and the aerosol-generating material may be deformed or displaced. Additionally, having a wall thickness within these ranges ensures that the tubular inductively heatable susceptor heats up quickly upon use of the aerosol-generating article in an aerosol-generating device.

[0018] The tubular inductively heatable susceptor may be circumferentially continuous and may have no longitudinally extending joints or seams, thereby providing the tubular inductively heatable susceptor with a uniform electrical resistance.

[0019] The aerosol-generating material in the first region can be located both inside and outside the tubular inductively heatable susceptor, such that heat from the tubular inductively heatable susceptor is transferred to the aerosol-generating material located both inside and outside the tubular susceptor, thereby optimizing aerosol generation and improving energy efficiency because the susceptor is surrounded by aerosol-generating material.

[0020] The inductively heatable susceptor may have one sharp or pointed end, or optionally multiple sharp or pointed ends. The or each sharp or pointed end may be positioned at the midpoint of the aerosol-generating material. Providing a sharp or pointed end on the inductively heatable susceptor facilitates placement of the inductively heatable susceptor in the aerosol-generating material, for example, by inserting the inductively heatable susceptor into the aerosol-generating material from a first end or a second end during manufacture of the aerosol-generating article.

[0021] In some embodiments, the sharp or pointed end is 1 mm 2 The surface area may be less than 0.5 mm 2 can be less than 0.25 mm, typically 2 The small surface area facilitates insertion of the inductively heatable susceptor into the aerosol-generating material during manufacture of the aerosol-generating article.

[0022] The inductively heatable susceptor may include a flat portion. The flat portion may be located at a first end of the aerosol-generating material in embodiments where the first region is upstream of the second region. The flat portion may be located at a second end of the aerosol-generating material in embodiments where the first region is downstream of the second region. The flat portion may be 1 mm 2 More than 2 mm, preferably 2 The inductively heatable susceptor may have a projected or enclosed area that may exceed the cross-sectional area of ​​the aerosol-generating article and may be less than the cross-sectional area of ​​the aerosol-generating article. In some embodiments, the projected or enclosed area of ​​the flat portion may be greater than the surface area of ​​the flat portion. In one example, the inductively heatable susceptor may be tubular and have an annular flat portion. The surface area of ​​the flat portion corresponds to the annular area, and the projected or enclosed area corresponds to the area enclosed by the outer periphery of the tubular susceptor, e.g., a circular area, where the enclosed area is greater than the annular area. Those skilled in the art will understand that inductively heatable susceptors of other shapes can be used in which the projected or enclosed area of ​​the flat portion is greater than the surface area of ​​the flat portion. Providing a flat portion may make the inductively heatable susceptor easier to manipulate and more easily insert into the aerosol-generating material in the correct orientation, such as at an angle, from the first end or second end.

[0023] By way of non-limiting example, the inductively heatable susceptor may be U-shaped, E-shaped, or I-shaped. U-shaped and E-shaped inductively heatable susceptors have a ferrite core at one end of the inductively heatable susceptor. It will be appreciated that this is an example of an inductively heatable susceptor having both a flat portion at one end and a plurality of sharp or pointed ends at the other opposite end.

[0024] The inductively heatable susceptor may be connected to a sharp or pointed portion comprising a non-inductively heatable material. The non-inductively heatable material may comprise a material that is substantially non-conductive and non-magnetic. It will be appreciated that this configuration results in no heat being generated at the sharp or pointed portion. The use of a non-inductively heatable material, such as a plastic material or a ceramic material that can withstand high temperatures, may make the sharp or pointed portion easier to manufacture.

[0025] In one embodiment, the inductively heatable susceptor may be connected at one end to a sharp or pointed portion comprising a non-inductively heatable material.

[0026] In another embodiment, the sharp or pointed portion may include a connector, such as a tubular connector, and the inductively heatable susceptor may be connected to the connector. The provision of a connector may facilitate connection between the sharp or pointed portion and the inductively heatable susceptor.

[0027] In a first example, a tubular inductively heatable susceptor may be disposed around a tubular connector to form a sleeve that surrounds and connects to the tubular connector, which may allow for a relatively easy connection of the sharp or pointed end to the inductively heatable susceptor.

[0028] In a second example, the inductively heatable susceptor may include a coating of inductively heatable material applied to the connector.

[0029] The aerosol-generating material may comprise an aerosol-generating sheet that may be substantially parallel to the longitudinal axis of the aerosol-generating article. This configuration may facilitate insertion of the inductively heatable susceptor into the aerosol-generating material from the first end in embodiments where the first region is upstream of the second region, or from the second end in embodiments where the first region is downstream of the second region, and / or may facilitate airflow through the aerosol-generating material during use of the aerosol-generating article in an aerosol-generating device.

[0030] In one embodiment, such as an embodiment in which the first region is located upstream of the second region, the distance between the midpoint and the second end may be 20% to 70% of the distance between the first end and the second end. The distance between the midpoint and the second end may be 30% to 60% of the distance between the first end and the second end. The distance between the midpoint and the second end may be 40% to 60% of the distance between the first end and the second end. The distance between the midpoint and the second end may be 50% of the distance between the first end and the second end. In this manner, the midpoint may be located at the midpoint between the first end and the second end. This configuration balances the functionality of the aerosol-generating material between the first region and the second region, ensuring that the resulting aerosol generated during use of the aerosol-generating article has optimal properties.

[0031] In embodiments where the first region is upstream of the second region, the end of the inductively heatable susceptor, e.g., the flat portion, can be flush with the first end of the aerosol-generating material. In embodiments where the first region is downstream of the second region, the end of the inductively heatable susceptor, e.g., the flat portion, can be flush with the second end of the aerosol-generating material. Alternatively, the end of the inductively heatable susceptor, e.g., the flat portion, can be embedded in the first or second end of the aerosol-generating material. Embedding the end of the inductively heatable susceptor in the aerosol-generating material surrounds the entire inductively heatable susceptor, thereby maximizing heat transfer from the inductively heatable susceptor to the aerosol-generating material and resulting in more efficient aerosol or vapor generation.

[0032] The inductively heatable susceptor may have a length that may be greater than the width of the aerosol-generating article, and the resulting aerosol-generating article may have a shape optimized for insertion into a cavity of an aerosol-generating device.

[0033] The aerosol-generating material may be wrapped in a sheet of material, which then acts as a wrapper. The wrapper may comprise a substantially non-conductive and magnetically opaque material, such as a paper wrapper. The use of a wrapper may facilitate the manufacture and handling of the aerosol-generating article and may enhance aerosol generation.

[0034] The aerosol-generating article may include a breathable member at a first end of the aerosol-generating material. The aerosol-generating article may include a breathable member at a second end of the aerosol-generating material. The breathable member may be a breathable cap. The breathable member may be a filter including, for example, cellulose acetate fibers.

[0035] In embodiments in which the first region is located upstream of the second region, the aerosol-generating article may include a breathable member, e.g., a breathable cap, at the first end of the aerosol-generating material. The aerosol-generating material visible at the first end may be slightly deformed by inserting the inductively heatable susceptor into the first region, and the breathable member may help improve the appearance of the aerosol-generating article by covering the first end and ensuring that the aerosol-generating material in the first region is not exposed or visible. The breathable member may also help ensure that the inductively heatable susceptor does not fall off the first end and become dislodged from the first region of aerosol-generating material.

[0036] The breathable member may include an opening, such as a slit or hole, for receiving a temperature sensor. The opening allows the temperature sensor of the aerosol-generating device to be positioned within the breathable member, and optionally through the breathable member, in close proximity to the inductively heatable susceptor. This ensures that the temperature of the inductively heatable susceptor can be accurately detected by the temperature sensor and that control of the aerosol-generating device can be optimized.

[0037] The dimensions of the opening may be equal to or less than the dimensions of the temperature sensor. For example, in embodiments where the opening is a hole, the inner diameter of the hole may be equal to or less than the outer diameter of the temperature sensor. This configuration allows the temperature sensor to be conveniently cleaned when it is inserted into the opening (when the aerosol-generating article is inserted into the aerosol-generating device) and / or when it is removed from the opening (when the aerosol-generating article is removed from the aerosol-generating device).

[0038] In embodiments in which the first region is located upstream of the second region, the breathable member may be coaxially aligned in abutment with the first region of aerosol-generating material.

[0039] In embodiments in which the first region is located upstream of the second region, the breathable member may be coaxially aligned with and spaced apart from the first region of aerosol-generating material. The breathable member may be spaced apart from the first region of aerosol-generating material by a gap, such as a gap created by a hollow tubular member that may be located between the first end and the breathable member. The spacing between the breathable member and the first region of aerosol-generating material provided by the gap increases the distance between the breathable member and an inductively heatable susceptor located in the first region, thereby reducing the likelihood of damage to the breathable member due to heat transfer from the inductively heatable susceptor. The spacing provided by the gap also serves to capture any condensed vapor or aerosol released from the first end during heating of the aerosol-generating material in the first region, thereby minimizing or eliminating release of condensed vapor or aerosol from the first end.

[0040] The opening in the breathable member and / or the length of the breathable member can be dimensioned so that a temperature sensor of the aerosol-generating device extends through the breathable member into the gap between the breathable member and the first region of the aerosol-generating material, e.g., into the hollow tubular member. This configuration allows the temperature sensor to be positioned in close proximity to the inductively heatable susceptor, ensuring that the temperature of the inductively heatable susceptor can be accurately detected by the temperature sensor and optimizing control of the aerosol-generating device. Additionally, the breathable member can more effectively clean the temperature sensor when inserting the temperature sensor into the opening (when the aerosol-generating article is inserted into the aerosol-generating device) and / or when removing the temperature sensor from the opening (when the aerosol-generating article is removed from the aerosol-generating device).

[0041] In one embodiment of the method according to the second aspect, the first region may be located upstream of the second region, the first region may extend from a first end of the aerosol-generating material to a midpoint between the first and second ends of the aerosol-generating material, the second region may extend from the midpoint to the second end, and the inductively heatable susceptor may be tubular. In this case, the method may include inserting a tubular inductively heatable susceptor from the first end into the first region such that the tubular inductively heatable susceptor extends from the first end to the midpoint.

[0042] In another embodiment of the method according to the second aspect, the first region may be located downstream of the second region, the first region may extend from the second end of the aerosol-generating material to a midpoint between the second end and the first end of the aerosol-generating material, the second region may extend from the midpoint to the first end, and the inductively heatable susceptor may be tubular. In this case, the method may include inserting a tubular inductively heatable susceptor from the second end into the first region such that the tubular inductively heatable susceptor extends from the second end to the midpoint.

[0043] The method may include inserting a tubular inductively heatable susceptor into the first region such that aerosol-generating material is disposed both inside and outside the tubular inductively heatable susceptor. As discussed above, this configuration ensures that heat from the tubular inductively heatable susceptor is transferred to the aerosol-generating material disposed both inside and outside the tubular inductively heatable susceptor, thereby optimizing aerosol generation and maximizing energy efficiency.

[0044] The method may include inserting a tubular inductively heatable susceptor into the first region with a pusher. The pusher may have a tapered portion, e.g., a tapered end, that may be partially inserted into an end of the tubular inductively heatable susceptor. The tapered portion may have an outer diameter that corresponds to an inner diameter of the tubular inductively heatable susceptor. This ensures that the pusher properly inserts the tubular inductively heatable susceptor into the first region.

[0045] The method may include inserting the inductively heatable susceptor into the first region from a first end or a second end such that the inductively heatable susceptor extends to an intermediate point, and may include supporting the aerosol-generating material at the opposite one of the first and second ends as the inductively heatable susceptor is inserted into the first region. In embodiments in which the first region is located upstream of the second region, the method may include inserting the inductively heatable susceptor into the first region from the first end such that the inductively heatable susceptor extends from the first end to an intermediate point, and supporting the aerosol-generating material at the second end as the inductively heatable susceptor is inserted into the first region. In embodiments in which the first region is located downstream of the second region, the method may include inserting the inductively heatable susceptor from the second end into the first region such that the inductively heatable susceptor extends from the second end to a midpoint, and supporting the aerosol-generating material at the first end as the inductively heatable susceptor is inserted into the first region.

[0046] The aerosol-generating material may be supported at the first end or the second end by a support member. Supporting the aerosol-generating material during insertion of the inductively heatable susceptor, for example by a support member, may ensure that the aerosol-generating material is properly supported and not displaced by the inductively heatable susceptor when the inductively heatable susceptor is inserted into the aerosol-generating material.

[0047] The support member can be an external support member, e.g., part of a manufacturing apparatus. The method can include supporting the aerosol-generating material at a first end or a second end using the external support member, and can include inserting the inductively heatable susceptor into the first region from the first end or the second end before assembling the aerosol-generating material with other components of the aerosol-generating article. With this configuration, the first end or the second end of the aerosol-generating material is directly supported by the external support member. This allows other components of the aerosol-generating article, such as a filter, to be combined with the aerosol-generating material after inserting the inductively heatable susceptor into the first region, thereby providing greater flexibility in the design and construction of the aerosol-generating article.

[0048] The support member may be an integral support member provided by a component of the aerosol-generating article, such as a filter. The method may include, after assembling the aerosol-generating material and the component intended as the integral support member, inserting the inductively heatable susceptor into the first region from either the first end or the second end. With this configuration, the aerosol-generating material is supported at either the first end or the second end by the integral support member when the inductively heatable susceptor is inserted into the first region from the opposite end of the first end or the second end. Eliminating the need for an external support member may simplify the manufacturing apparatus and method.

[0049] The aerosol-generating material in the second region, i.e., the aerosol-generating material between the midpoint and the first or second end opposite the end where the inductively heatable susceptor is not inserted, may be compressed in a direction perpendicular to the axis of the aerosol-generating material or in the direction of insertion when the inductively heatable susceptor is inserted into the first region. The compressive action of the aerosol-generating material in the second region when the inductively heatable susceptor is inserted into the first region ensures that the aerosol-generating material is properly supported and not displaced when the inductively heatable susceptor is inserted.

[0050] The method may include placing the aerosol-generating material in a receiving portion formed around the outer surface of a drum. The receiving portion may have a first receiving section that does not compress the aerosol-generating material in the first region and a second receiving section that compresses the aerosol-generating material in the second region. The method may include supporting the aerosol-generating material in the receiving portion with a support drum. The use of a drum having a first (non-compressing) receiving section and a second (compressing) receiving section, in combination with an optional support drum, provides a convenient way to compress the aerosol-generating material in the second region.

[0051] The method may include wrapping a sheet of material around the aerosol-generating material.

[0052] In embodiments in which the first region is located downstream of the second region, the method may include inserting the inductively heatable susceptor from the second end into the first region of aerosol-generating material, followed by positioning a filter at the second end in coaxial alignment with the aerosol-generating material. The method may further include positioning a hollow tubular member between the second end and the filter. The hollow tubular member advantageously allows heated vapor or aerosol from the first region to be drawn through the filter prior to inhalation by a user during use of the aerosol-generating article in the aerosol-generating device. It may be cooled to cause condensation.

[0053] The method may further comprise wrapping a sheet of material around the aerosol-generating material, the filter, and the optional hollow tubular member to ensure that the components of the aerosol-generating article remain in the correct alignment.

[0054] According to a third aspect of the present disclosure, an aerosol generation device comprising an induction coil defining a cavity, the induction coil configured to generate an alternating current electromagnetic field; an aerosol-generating article as defined above, positioned within a cavity such that the longitudinal axis of the inductively heatable susceptor is substantially aligned with the longitudinal axis of the cavity; An aerosol generating system is provided, comprising:

[0055] By placing the aerosol-generating article within the cavity so that the longitudinal axis of the inductively heatable susceptor, e.g., a tubular inductively heatable susceptor, is substantially aligned with the longitudinal axis of the cavity, the positional relationship between the inductively heatable susceptor and the induction coil is optimized, thereby optimizing coupling between the electromagnetic field and the inductively heatable susceptor and thus optimally heating the inductively heatable susceptor during operation of the aerosol-generating device.

[0056] Inductively heatable susceptors may include, but are not limited to, one or more of aluminum, iron, nickel, stainless steel, and alloys thereof, such as nickel-chromium or nickel-copper, etc. Application of an electromagnetic field in the vicinity of the susceptor can cause the susceptor to generate heat due to eddy currents and magnetic hysteresis losses resulting in electromagnetic-to-thermal energy conversion.

[0057] The induction coil may comprise Litz wire or Litz cable, although it will be appreciated that other materials may be used. The induction coil may be substantially helical in shape, for example extending around a cavity in which the aerosol-generating article is disposed.

[0058] The circular cross section of the spiral induction coil can facilitate insertion of the aerosol-generating article into the aerosol-generating device, for example into a cavity in which the aerosol-generating article is received during use, and can ensure uniform heating of the aerosol-generating material.

[0059] The induction coil may be configured to operate in use with a varying electromagnetic field having a magnetic flux density of about 20 mT to about 2.0 T at its highest density point.

[0060] The aerosol generating device can include a power supply and circuitry that can be configured to operate at high frequencies. The power supply and circuitry can be configured to operate at frequencies of about 80 kHz to 500 kHz, optionally about 150 kHz to 250 kHz, and optionally about 200 kHz. Depending on the type of inductively heatable susceptor used, the power supply and circuitry can be configured to operate at higher frequencies, such as in the MHz range.

[0061] The aerosol-generating material can be any type of solid or semi-solid material. Exemplary types of aerosol-generating material include powders, granules, particles, gels, strips, loose-leaf, cut filler, pellets, powders, strips, strands, foam materials, and sheets. The aerosol-generating material can include plant-derived materials, particularly tobacco.

[0062] The aerosol-generating material may include an aerosol former, examples of which include polyhydric alcohols such as glycerin or propylene glycol, and mixtures thereof. Typically, the aerosol-generating material may contain about 5% to about 50% aerosol former by dry weight. In some embodiments, the aerosol-generating material may contain about 15% aerosol former by dry weight. [Brief explanation of the drawings]

[0063] [Figure 1]FIG. 1a is a schematic cross-sectional view of a first example of an aerosol-generating article, and FIG. 1b is a schematic view seen from the direction of arrow A shown in FIG. 1a. [Figure 2] FIG. 2a is a schematic cross-sectional view of a second example of an aerosol-generating article, and FIG. 2b is a schematic view seen from the direction of arrow A shown in FIG. 2a. [Figure 3] FIG. 3a is a schematic cross-sectional view of a third example of an aerosol-generating article, and FIG. 3b is a schematic view seen from the direction of arrow A shown in FIG. 3a. [Figure 4] FIG. 4a is a schematic cross-sectional view of a fourth example of an aerosol-generating article, and FIG. 4b is a schematic view seen from the direction of arrow A shown in FIG. 4a. [Figure 5] 5a-5c are schematic diagrams of the end of a tubular inductively heatable susceptor having a sharp or pointed end. [Figure 6] 6a-6c are schematic diagrams of the end of an inductively heatable susceptor connected at one end to a non-inductively heatable sharp or pointed portion. [Figure 7] 7a-7e are schematic diagrams of the end of an inductively heatable susceptor in the form of a sleeve and connected to a non-inductively heatable portion. [Figure 8] 1 is a schematic cross-sectional view of an aerosol generation system comprising an aerosol generating device and a first example of an aerosol-generating article as shown in FIGS. 1a and 1b. FIG. [Figure 9] FIG. 10 is a schematic cross-sectional view of a fifth example of an aerosol-generating article. [Figure 10] 10 is a schematic cross-sectional view of a sixth example of an aerosol-generating article and part of an aerosol-generating device. FIG. [Figure 11] 10 is a schematic cross-sectional view of a sixth example of an aerosol-generating article and part of an aerosol-generating device. FIG. [Figure 12] 10 is a schematic cross-sectional view of a seventh example of an aerosol-generating article and a portion of an aerosol-generating device. FIG. [Figure 13] 10 is a schematic cross-sectional view of a seventh example of an aerosol-generating article and a portion of an aerosol-generating device. FIG. [Figure 14]14a-14b are schematic diagrams of an apparatus and method for manufacturing the fourth example of the aerosol-generating article shown in FIGS. 4a and 4b. [Figure 15] FIG. 14b is a schematic diagram of an apparatus similar to that shown in FIGS. 14a and 14b. [Figure 16] 16a-16b are schematic diagrams of an alternative apparatus and method for producing the fourth example aerosol-generating article shown in FIGS. 4a and 4b. [Figure 17] 1 is a schematic diagram of an apparatus and method for producing an aerosol-generating article. [Figure 18] 1 is a schematic diagram of an apparatus and method for producing an aerosol-generating article. [Figure 19] 19a-19c are views taken from the direction of arrow A in FIG. [Figure 20] 20a-20c are cross-sectional views taken along line BB in FIG. [Figure 21] FIG. 10 is a schematic cross-sectional view of a seventh example of an aerosol-generating article. DETAILED DESCRIPTION OF THE INVENTION

[0064] Embodiments of the present disclosure will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0065] 1a and 1b, there is shown a first example of an aerosol-generating article 1 for use with an aerosol-generating device, examples of which are described later in this specification. The aerosol-generating article 1 is elongated and substantially cylindrical. The circular cross-section facilitates handling of the article 1 by a user and insertion of the article 1 into a cavity of the aerosol-generating device.

[0066] The article 1 comprises an aerosol-generating material 10 having a first region 12 and a second region 14. The first region 12 is located upstream of the second region 14 relative to the direction of aerosol flow within the article 1. The aerosol-generating material 10 has a first end 16, a second end 18, and an intermediate point 20 between the first end 16 and the second end 18. In the illustrated embodiment, the intermediate point 20 is located at the midpoint between the first end 16 and the second end 18, such that the first region 12 and the second region 14 have the same longitudinal dimension. However, as discussed above, the intermediate point 20 can be located at other locations between the first end 16 and the second end 18.

[0067] The article 1 includes a filter 11, e.g., comprising cellulose acetate fibers, positioned downstream of the second region 14 through which a user can inhale aerosol or vapor generated during use of the article 1 in an aerosol-generating device. The aerosol-generating material 10 and filter 11 are wrapped in a sheet-like material, e.g., a paper wrapper 26, to maintain the relative positions of the first region 12 and second region 14 of the aerosol-generating material 10 and the filter 11.

[0068] Article 1 comprises an inductively heatable susceptor 22 disposed in first region 12. Inductively heatable susceptor 22 is substantially U-shaped and comprises two elongated portions 22a, 22b extending through first region 12 from first end 16 to midpoint 20, and a connecting portion 23 connecting the two elongated portions 22a, 22b.

[0069] The ends of elongated portions 22 a, 22 b may be sharpened or pointed to facilitate insertion of inductively heatable susceptor 22 into first region 12 from first end 16. Connecting portion 23 defines a flat portion 24 that facilitates easy manipulation and insertion of inductively heatable susceptor 22 into first region 12 from first end 16, e.g., in the correct orientation. In the illustrated example, the end of inductively heatable susceptor 22 defined by flat portion 24 is flush with first end 16 of aerosol-generating material 10; however, it will be understood that in other embodiments, the end of inductively heatable susceptor 22 defined by flat portion 24 may be recessed in first end 16 such that inductively heatable susceptor 22 is completely surrounded by aerosol-generating material 10 in first region 12.

[0070] The aerosol-generating material 10 is typically a solid or semi-solid material. Examples of suitable aerosol-forming solids include powders, granules, particles, gels, strips, loose-leaf, cut filler, pellets, powders, strips, strands, foam materials, and sheets. The aerosol-generating material 10 typically comprises plant-derived materials, particularly tobacco.

[0071] The aerosol-generating material 10 includes an aerosol former, such as glycerin or propylene glycol. Typically, the aerosol-generating material may contain from about 5% to about 50% aerosol former on a dry weight basis. Upon heating, the aerosol-generating material 10 releases volatile compounds, optionally including flavor compounds such as nicotine or tobacco flavorings.

[0072] During use of the article 1 in an aerosol-generating device, application of a time-varying electromagnetic field near the inductively heatable susceptor 22 generates heat in the inductively heatable susceptor 22 due to eddy currents and magnetic hysteresis losses, which is transferred from the inductively heatable susceptor 22 to the aerosol-generating material 10 in the first region 12, heating the aerosol-generating material 10 in the first region 12 without burning it, thereby generating an aerosol. When a user inhales through the filter 11, the aerosol is drawn from the first region 12 through the article 1 and downstream through the second region 14. As the aerosol flows through the second region 14 toward the filter 11, the aerosol-generating material 10 in the second region 14 cools and condenses the aerosol, producing an aerosol with suitable properties for inhalation by a user through the filter 11. At the same time, as the aerosol-generating material 10 in the second region 14 is heated by the heated aerosol flowing through the second region 14, one or more volatile components may also be released from the aerosol-generating material 10 in the second region 14, thereby enhancing the characteristics (e.g., flavor) of the vapor or aerosol delivered through the filter 11 to the user.

[0073] Referring now to Figures 2a and 2b, there is shown a second example of an aerosol-generating article 2 similar to the aerosol-generating article 1 shown in Figures 1a and 1b, with corresponding elements indicated using the same reference numerals.

[0074] 1a and 1b, except that the inductively heatable susceptor 22 is substantially E-shaped and comprises three elongated portions 22a, 22b, 22c that extend through the first region 12 from the first end 16 to an intermediate point 20. The three elongated portions 22a, 22b, 22c are connected by a connecting portion 23.

[0075] As mentioned above, the ends of elongated portions 22a, 22b, 22c may be sharpened or pointed to facilitate insertion of inductively heatable susceptor 22 into first region 12 from first end 16. Connecting portion 23 similarly defines a flat portion 24 that allows for easy manipulation and insertion of inductively heatable susceptor 22 into first region 12 from first end 16.

[0076] Referring now to Figures 3a and 3b, there is shown a third example of an aerosol-generating article 3 similar to the aerosol-generating article 1 shown in Figures 1a and 1b, with corresponding elements indicated using the same reference numerals.

[0077] 1a and 1b, except that the inductively heatable susceptor 22 is substantially I-shaped, with a single elongated portion 22 extending from the first end 16 to an intermediate point 20 through the first region 12. As can be best seen in FIG. 3b, the inductively heatable susceptor 22 is centrally positioned in the aerosol-generating material 10 in the first region 12 to ensure uniform heating of the aerosol-generating material 10 in the first region 12.

[0078] Referring now to Figures 4a and 4b, there is shown a fourth example of an aerosol-generating article 4 similar to the aerosol-generating article 1 shown in Figures 1a and 1b, with corresponding elements indicated using the same reference numerals.

[0079] 1a and 1b, except that the inductively heatable susceptor 22 is tubular. The aerosol-generating material 10 in the first region 12 is positioned both inside and outside the tubular inductively heatable susceptor 22 to maximize heat transfer to the aerosol-generating material 10 in the first region 12, thereby maximizing the amount of aerosol generated and maximizing energy efficiency.

[0080] In a preferred embodiment, the tubular inductively heatable susceptor 22 and the paper wrapper 26 are concentric, thereby ensuring uniform heating of the aerosol-generating material 10 in the first region 12 .

[0081] To facilitate insertion of the tubular inductively heatable susceptor 22 into the aerosol-generating material 10 from the first end 16, the tubular inductively heatable susceptor 22 may include a sharp or pointed end 28 that is positioned at the midpoint 20 after insertion of the inductively heatable susceptor 22 into the first region 12, as shown in Figures 5a-5c. It can be made by cutting the end of the inductively heatable susceptor 22 at an angle.

[0082] Referring now to FIGS. 6a-6c, and in a variation of the example shown in FIGS. 5a-5c, the tubular inductively heatable susceptor 22 may be connected at one end to a sharpened or pointed portion 30 comprising a non-inductively heatable material, e.g., a plastic material such as polyetheretherketone (PEEK). The ends of the tubular inductively heatable susceptor 22 and the sharpened or pointed portion 30 may generally have the same outer diameter as shown in FIGS. 6a and 6c and may be connected in any suitable manner. The sharpened or pointed portion 30 facilitates insertion of the tubular inductively heatable susceptor 22 into the aerosol-generating material 10 from the first end 16 and is located at the midpoint 20 after the inductively heatable susceptor has been inserted into the first region 12. The sharpened or pointed portion 30 may be easily manufactured, for example, by a suitable molding or extrusion process, potentially avoiding the need to bevel a component to provide the sharpened or pointed end.

[0083] 7a-7e, and in a variation of the example shown in FIGS. 6a-6c, the tubular inductively heatable susceptor 22 may also be connected to a sharp or pointed portion 30 comprising a non-inductively heatable material, for example, a plastic material such as polyetheretherketone (PEEK). In this example, the sharp or pointed portion 30 comprises a tubular connector 32 to which the inductively heatable susceptor 22 is connected. As shown in FIGS. 7d ​​and 7e, the outer diameter of the tubular connector 32 is smaller than the inner diameter of the tubular inductively heatable susceptor 22 so that the tubular connector 32 can be inserted into the end of the tubular inductively heatable susceptor 22. Thus, the end of the tubular inductively heatable susceptor 22 surrounds the tubular connector 32 and forms a sleeve that is connected to the tubular connector 32. The outer diameter of the sharp or pointed portion 30 that abuts the end of the tubular inductively heatable susceptor 22 corresponds to the outer diameter of the tubular inductively heatable susceptor 22 to provide a smooth surface that facilitates insertion of the tubular inductively heatable susceptor 22 into the aerosol-generating material 10 from the first end 16.

[0084] Referring now to Figure 8, an aerosol generation system 40 for generating an inhalable aerosol is shown. The aerosol generation system 40 includes an aerosol generation device 42 that includes a housing 44, a power source 46, and a control circuit 48 that may be configured to operate at radio frequency. The power source 46 typically includes one or more batteries that may be rechargeable, for example, by electromagnetic induction. The aerosol generation device 42 also includes one or more air inlets, for example, two air inlets 50a, 50b.

[0085] The aerosol-generating device 42 includes an induction heating assembly 52 for heating an aerosol-generating material. The induction heating assembly 52 includes a generally cylindrical cavity 54 configured to receive a correspondingly shaped, generally cylindrical aerosol-generating article according to an embodiment of the present disclosure.

[0086] 8 shows a first example of the aerosol-generating article 1 shown in Figures 1a and 1b placed in a cavity 54. The cavity 54 forming the heating compartment and the aerosol-generating article 1 are configured such that the filter 11 protrudes from the cavity 54 and can be held between the user's lips to inhale vapor or aerosols generated during operation of the system 40.

[0087] The air inlets 50a, 50b communicate with the cavity 54 and are configured to direct air into the first region 12 of the aerosol-generating material 10. In a variant (not shown), a breathable plug can be provided at the lower axial end of the cavity 54 as viewed in Figure 8 so that air passing through the air inlets 50a, 50b is evenly distributed throughout the aerosol-generating material 10 in the first region 12.

[0088] The induction heating assembly 52 includes a helical induction coil having a first axial end and a second axial end, extending around a cylindrical cavity 54, and capable of being energized by a power supply 46 and control circuitry 48. The induction coil 56 thus defines a cavity 54 in which the aerosol-generating article 1 is disposed. It should be noted that the cavity 54 and the aerosol-generating article 1 each have their own longitudinal axes, and that when the aerosol-generating article 1 is disposed within the cavity 54, the longitudinal axes are substantially aligned with one another.

[0089] The control circuitry 48 includes, among other electronic components, an inverter configured to convert direct current from the power supply 46 into alternating, high-frequency current for the induction coil 56. As will be appreciated by those skilled in the art, when the induction coil 56 is energized with an alternating, high-frequency current, an alternating, time-varying electromagnetic field is generated. This electromagnetic field couples with the inductively heatable susceptor 22, generating eddy currents and / or magnetic hysteresis losses within the inductively heatable susceptor 22 and causing the susceptor to heat. This heat is then transferred from the inductively heatable susceptor 22 to the aerosol-generating material 10 in the first region 12 by, for example, conduction, radiation, and convection, to generate an aerosol. Aerosolization of the aerosol-generating material 10 in the first region 12 is facilitated by adding air from the ambient environment through air inlets 50a and 50b. As described above, the aerosol generated by heating the aerosol-generating material 10 in the first region 12 then flows through the aerosol-generating material 10 in the second region 14 where it cools and condenses to form a vapor or aerosol suitable for inhalation through the filter 11 by a user of the system 40.

[0090] Referring now to Figure 9, there is shown a fifth example of an aerosol-generating article 5 similar to the aerosol-generating article 4 shown in Figures 4a and 4b, with corresponding elements indicated using the same reference numerals.

[0091] The aerosol-generating material 10 is conveniently wrapped in a sheet of material, such as a paper wrapper 60, to facilitate handling of the aerosol-generating material 10. The tubular inductively heatable susceptor 22 can be positioned in the first region 12 of the aerosol-generating material 10 either before or after the aerosol-generating material is wrapped in the paper wrapper 60.

[0092] The aerosol-generating article 5 comprises a hollow tubular member 62 disposed between the second end 18 of the aerosol-generating material 10 and the filter 11. The aerosol generated during use of the article 5 by heating the aerosol-generating material 10 cools and condenses as it flows through the hollow tubular member 62 to form a vapor or aerosol with optimal properties for inhalation by the user.

[0093] The aerosol-generating article 5 includes a breathable member 64 in the form of a breathable cap at the first end 16 of the aerosol-generating material 10 and coaxially aligned with and abutting the first region 12 of the aerosol-generating material 10. The breathable member 64 may typically be a filter, for example a filter comprising cellulose acetate fibers.

[0094] The various components of the aerosol-generating article 5, including the aerosol-generating material 10 wrapped around the inductively heatable susceptor 22, the hollow tubular member 62, the filter 11, and the breathable member 64, are all wrapped in a sheet of material, such as a paper wrapper 26, to maintain the relative positions of the components of the assembled article 5.

[0095] 10 and 11, there is shown a sixth example of an aerosol-generating article 6 that is similar to the aerosol-generating article 5 shown in FIG. 9, with corresponding elements designated using the same reference numerals.

[0096] In the aerosol-generating article 6, the breathable member 64 includes an opening 68, such as a slit or hole, adapted to receive a temperature sensor 70 disposed in the cavity 54 of the induction heating assembly 52 described above. As best seen in FIG. 11, the opening 68 allows the temperature sensor 70 to The temperature sensor 70 is sized so that it extends completely within the opening 68 but does not protrude therefrom. The opening 68 is also conveniently sized to have an inner diameter that is approximately the same as or slightly smaller than the outer diameter of the temperature sensor 70. In this case, the breathable member 64 can remove deposits from the surface of the temperature sensor 70 (thereby cleaning the temperature sensor 70) when the aerosol-generating article 6 is inserted into and / or removed from the cavity 54.

[0097] Referring now to Figures 12 and 13, there is shown a seventh example of an aerosol-generating article 7 which is similar to the aerosol-generating article 6 shown in Figures 10 and 11, and corresponding elements are indicated using the same reference numerals.

[0098] The breathable member 64 is coaxially aligned with the first region 12 of the aerosol-generating material 10 but is spaced apart from the first region 12 by a gap formed by a hollow tubular member 72 positioned between the breathable member 64 and the first end 16 of the aerosol-generating material 10.

[0099] As best seen in FIG. 13, the temperature sensor 70 and / or the opening 68 in the breathable member 64 are sized so that the temperature sensor 70 extends through the breathable member 64 and protrudes into the gap formed by the hollow tubular member 72.

[0100] 14a and 14b, there is shown an apparatus and method for producing the aerosol-generating article 4 described above in relation to FIG.

[0101] To position the tubular inductively heatable susceptor 22 in the first region 12 of the aerosol-generating material 10, a pusher 74 engages an end of the tubular inductively heatable susceptor 22 and moves toward the aerosol-generating material 10, pushing the tubular inductively heatable susceptor 22 from the first end 16 into the first region 12. The aerosol-generating material 10 is also supported at the second end 18 by an external support member 76, which forms part of the manufacturing apparatus (not shown), during insertion of the inductively heatable susceptor 22 into the first region 12.

[0102] As shown in FIG. 15, the pusher 74 may conveniently have a tapered end 78 with an outer diameter corresponding to the inner diameter of the tubular inductively heatable susceptor 22 so that the tapered end 78 can be inserted into the end of the tubular inductively heatable susceptor 22 to ensure optimal alignment and engagement between these two components.

[0103] 16a and 16b, and in a variation of the embodiment described above in relation to Figures 14 and 15, the aerosol-generating material 10 may be supported at the second end 18 during insertion of the tubular inductively heatable susceptor 22 into the first region 12 by a one-piece support member 80. In the embodiment shown in Figures 16a and 16b, the one-piece support member 80 comprises a filter 11 secured, for example by tipping paper 82, to the second end 18 of the aerosol-generating material 10 prior to insertion of the tubular inductively heatable susceptor 22 into the first region 12 from the first end 16.

[0104] 17-20, an apparatus and method for producing an aerosol-generating article is shown in which the aerosol-generating material 10 in the second region 14 is compressed in a direction perpendicular to the axis of the aerosol-generating material 10 (in the direction indicated by the arrow in FIG. 17) and upon insertion of a tubular inductively heatable susceptor 22 into the first region 16.

[0105] 18 and 19a-19c, the aerosol-generating material 10 is disposed in one of a plurality of receiving portions 90, e.g., grooves, formed around the outer surface of the drum 92. Each receiving portion 90 corresponds to the location of the first region 12 of the aerosol-generating material 10. Each receiving portion 90 includes a first receiving section 94 that corresponds to the location of the second region 14 of the aerosol-generating material 10 and does not compress the aerosol-generating material 10 in the first region 12. Each receiving portion 90 also includes a second receiving section 96 that corresponds to the location of the second region 14 of the aerosol-generating material 10 and compresses the aerosol-generating material 10 in the second region 14 when the inductively heatable susceptor 22 is inserted into the first region 12 from the first end 16. The second receiving section 96 may have any suitable shape, for example, as shown in the non-limiting examples of Figures 19a-19c.

[0106] The aerosol-generating material 10 is supported in the receiving section 90 by the support drum 98, for example, during insertion of the inductively heatable susceptor 22 into the first region 12 at Position O4. As best seen in FIGS. 20a-20c, the support drum 98 has a shape that matches the shape of the receiving section 90, for example, as shown in FIGS. 19a-19c, to ensure that the aerosol-generating material 10 is properly supported in the receiving section 90 and, in particular, that the second region 14 of the aerosol-generating material 10, located in the second receiving section 96, is properly compressed during insertion of the inductively heatable susceptor 22 into the first region 12 at Position O4.

[0107] Referring now to Figure 21, there is shown a seventh example of an aerosol-generating article 7 similar to those described above, with corresponding elements indicated using the same reference numerals.

[0108] The aerosol-generating article 7 comprises an aerosol-generating material 10 having a first region 12 and a second region 14, with the first region 12 positioned downstream of the second region 14 relative to the direction of aerosol flow within the article 1.

[0109] The aerosol-generating article 7 is positioned in the downstream first region 12 and includes an inductively heatable susceptor 22 extending from the second end 18 to an intermediate point 20. The inductively heatable susceptor 22 may be tubular, as shown in Figure 21, or may have any other suitable shape, for example as described above.

[0110] The aerosol-generating article 1 also includes a filter 11, for example comprising cellulose acetate fibers, and a hollow tubular member 62 disposed between the second end 18 and the filter 11. The various components of the aerosol-generating article 7 are wrapped in a sheet of material, for example a paper wrapper 26, to ensure that the components are held in the correct alignment.

[0111] While exemplary embodiments have been described in the preceding paragraphs, it should be understood that various modifications to these embodiments may be made without departing from the scope of the appended claims, and therefore, the scope of the claims should not be limited to the exemplary embodiments described above.

[0112] Any combination of the above-described features in all possible variations thereof is encompassed by the present disclosure unless otherwise indicated herein or otherwise clearly contradicted by context.

[0113] Unless the context clearly requires otherwise, throughout this specification and claims, the words "comprises," "including," and the like are to be construed in an inclusive sense, i.e., "including but not limited to," as opposed to an exclusive or exhaustive sense. The present invention can also be realized by the following aspects. [Form 1] an aerosol-generating material (10) having a first region (12) and a second region (14); an inductively heatable susceptor (22) in the first region (12); An aerosol-generating article (1, 2, 3, 4, 5, 6, 7) comprising: [Form 2] 2. The aerosol-generating article of claim 1, wherein the first region (12) is disposed upstream of the second region (14), and preferably the first region (12) extends from a first end (16) of the aerosol-generating material (10) to an intermediate point (20) between the first end (16) and the second end (18) of the aerosol-generating material (10), the second region (14) extends from the intermediate point (20) to the second end (18), and the inductively heatable susceptor (22) comprises an elongated portion (22a, 22b, 22c) extending from the first end (16) to the intermediate point (20). [Form 3] 2. The aerosol-generating article of claim 1, wherein the first region (12) is disposed downstream of the second region (14), and preferably the first region (12) extends from the second end (18) of the aerosol-generating material (10) to an intermediate point (20) between the second end (18) and the first end (16) of the aerosol-generating material (10), the second region (14) extends from the intermediate point (20) to the first end (16), and the inductively heatable susceptor (22) comprises an elongated portion (22a, 22b, 22c) extending from the second end (18) to the intermediate point (20). [Form 4] 4. The aerosol-generating article of any one of aspects 1 to 3, wherein the inductively heatable susceptor (22) is tubular. [Form 5] 5. The aerosol-generating article of claim 4, wherein the aerosol-generating material (10) is disposed both inside and outside the tubular inductively heatable susceptor (22). [Form 6] 6. The aerosol-generating article of any one of aspects 1 to 5, wherein the inductively heatable susceptor (22) has a sharp or pointed end (28). [Form 7] 6. The aerosol-generating article of any one of aspects 1 to 5, wherein the inductively heatable susceptor (22) is connected to a sharp or pointed portion (30) comprising a non-inductively heatable material. [Form 8] 8. An aerosol-generating article according to any one of the preceding aspects, wherein the aerosol-generating material (10) comprises an aerosol-generating sheet substantially parallel to the longitudinal axis of the aerosol-generating article. [Form 9] 4. The aerosol-generating article of claim 2 or 3, wherein an end of the inductively heatable susceptor (22) is flush with or embedded in the first end (16) or the second end (18) of the aerosol-generating material (10). [Form 10] 10. An aerosol-generating article according to any one of the preceding aspects, wherein the inductively heatable susceptor (22) has a length that is greater than a width of the aerosol-generating article. [Form 11] 1. A method for manufacturing an aerosol-generating article (1, 2, 3, 4) comprising an aerosol-generating material (10) having a first region (12) and a second region (14), the method comprising the step of disposing an inductively heatable susceptor (22) in the first region (12). [Form 12] 12. The method of claim 11, wherein the first region is disposed upstream of the second region, the first region extends from a first end of the aerosol-generating material to an intermediate point between the first end and a second end of the aerosol-generating material, the second region extends from the intermediate point to the second end, and the inductively heatable susceptor is tubular, the method comprising inserting the tubular inductively heatable susceptor into the first region from the first end such that the tubular inductively heatable susceptor extends from the first end to the intermediate point. [Form 13] 12. The method of claim 11, wherein the first region is disposed downstream of the second region, the first region extends from a second end of the aerosol-generating material to an intermediate point between the second end and a first end of the aerosol-generating material, the second region extends from the intermediate point to the first end, and the inductively heatable susceptor is tubular, the method comprising inserting the tubular inductively heatable susceptor into the first region from the second end such that the tubular inductively heatable susceptor extends from the second end to the intermediate point. [Form 14] 14. The method of claim 12 or 13, further comprising inserting the tubular inductively heatable susceptor (22) into the first region (12) with a pusher (74), the pusher (74) having a tapered portion (78) that can be partially inserted into an end of the tubular inductively heatable susceptor (22). [Form 15] 12. A method according to claim 11, wherein the aerosol-generating material has a first end, a second end, and an intermediate point between the first end and the second end, the method comprising inserting the inductively heatable susceptor into the first region from either the first end or the second end so that the inductively heatable susceptor extends to the intermediate point; and supporting the aerosol-generating material at the opposite end of the first end or the second end when inserting the inductively heatable susceptor into the first region. [Form 16] 12. The method of claim 11, wherein the aerosol-generating material has a first end, a second end, and an intermediate point between the first end and the second end, and the method includes inserting the inductively heatable susceptor into the first region from either the first end or the second end such that the inductively heatable susceptor extends to the intermediate point, wherein the aerosol-generating material in the second region is compressed in a direction perpendicular to the axis of the aerosol-generating material or in the direction of insertion upon inserting the inductively heatable susceptor into the first region. [Form 17] an aerosol generation device (42) including an induction coil (56) defining a cavity (54), the induction coil (56) configured to generate an alternating current electromagnetic field; 11. The aerosol-generating article (1, 2, 3, 4) of any one of aspects 1 to 10, wherein the inductively heatable susceptor (22) is disposed within the cavity (54) such that the longitudinal axis of the inductively heatable susceptor (22) is substantially aligned with the longitudinal axis of the cavity (54); An aerosol generating system (40) comprising:

Claims

1. an aerosol-generating material (10) having a first region (12) and a second region (14); an inductively heatable susceptor (22) in said first region (12); Equipped with An aerosol-generating article (1, 2, 3, 4, 5, 6, 7), wherein the inductively heatable susceptor (22) has a sharp or pointed portion (30) at the end thereof facing the second region (14) and comprising a non-inductively heatable material.

2. An aerosol-generating material (10) having a first region (12) and a second region (14); an inductively heatable susceptor (22) in said first region (12); Equipped with the first region (12) is disposed upstream of the second region (14), the first region (12) extends from a first end (16) of the aerosol-generating material (10) to an intermediate point (20) between the first end (16) and a second end (18) of the aerosol-generating material (10), the second region (14) extends from the intermediate point (20) to the second end (18), and the inductively heatable susceptor (22) comprises an elongated portion (22a, 22b, 22c) extending from the first end (16) to the intermediate point (20); The aerosol-generating article, wherein the second region is provided with only the aerosol-generating material (10).

3. An aerosol-generating material (10) having a first region (12) and a second region (14); an inductively heatable susceptor (22) in said first region (12); Equipped with the first region (12) is disposed downstream of the second region (14), the first region (12) extends from the second end (18) of the aerosol-generating material (10) to an intermediate point (20) between the second end (18) and the first end (16) of the aerosol-generating material (10), the second region (14) extends from the intermediate point (20) to the first end (16), and the inductively heatable susceptor (22) comprises an elongated portion (22a, 22b, 22c) extending from the second end (18) to the intermediate point (20); The aerosol-generating article, wherein the second region is provided with only the aerosol-generating material (10).

4. 4. An aerosol-generating article according to any one of claims 1 to 3, wherein the inductively heatable susceptor (22) is tubular.

5. 5. The aerosol-generating article of claim 4, wherein the aerosol-generating material (10) is disposed both inside and outside the tubular inductively heatable susceptor (22).

6. 6. An aerosol-generating article according to any one of claims 1 to 5, wherein the inductively heatable susceptor (22) comprises a sharp or pointed end (28).

7. 7. An aerosol-generating article according to any one of claims 1 to 6, wherein the aerosol-generating material (10) comprises an aerosol-generating sheet substantially parallel to the longitudinal axis of the aerosol-generating article.

8. 3. The aerosol-generating article of claim 2, wherein an end of the inductively heatable susceptor is flush with or embedded in the first end of the aerosol-generating material.

9. An aerosol-generating article as described in claim 3, wherein an end of the inductively heatable susceptor (22) is flush with or embedded in the second end (18) of the aerosol-generating material (10).

10. 10. An aerosol-generating article according to any one of claims 1 to 9, wherein the inductively heatable susceptor (22) has a length that is greater than a width of the aerosol-generating article.

11. 1. A method for manufacturing an aerosol-generating article (1, 2, 3, 4) comprising an aerosol-generating material (10) having a first region (12) and a second region (14), the method comprising the steps of: disposing an inductively heatable susceptor (22) in the first region (12); The method wherein the inductively heatable susceptor (22) is connected to a sharp or pointed portion (30) comprising a non-inductively heatable material.

12. 12. The method of claim 11, wherein the first region is disposed upstream of the second region, the first region extends from a first end of the aerosol-generating material to an intermediate point between the first end and a second end of the aerosol-generating material, the second region extends from the intermediate point to the second end, and the inductively heatable susceptor is tubular, the method comprising inserting the tubular inductively heatable susceptor from the first end into the first region such that the tubular inductively heatable susceptor extends from the first end to the intermediate point.

13. 12. The method of claim 11, wherein the first region is disposed downstream of the second region, the first region extends from a second end of the aerosol-generating material to a midpoint between the second end and a first end of the aerosol-generating material, the second region extends from the midpoint to the first end, and the inductively heatable susceptor is tubular, the method comprising inserting the tubular inductively heatable susceptor from the second end into the first region such that the tubular inductively heatable susceptor extends from the second end to the midpoint.

14. 14. The method according to claim 12 or 13, further comprising inserting the tubular inductively heatable susceptor (22) into the first region (12) by a pusher (74), the pusher (74) having a tapered portion (78) that can be partially inserted into an end of the tubular inductively heatable susceptor (22).

15. 12. The method of claim 11, wherein the aerosol-generating material has a first end, a second end, and an intermediate point between the first end and the second end, the method comprising: inserting the inductively heatable susceptor into the first region from either the first end or the second end such that the inductively heatable susceptor extends to the intermediate point; and supporting the aerosol-generating material at the opposite one of the first end and the second end as the inductively heatable susceptor is inserted into the first region.

16. 12. The method of claim 11, wherein the aerosol-generating material has a first end, a second end, and an intermediate point between the first end and the second end, the method comprising inserting the inductively heatable susceptor into the first region from the first end or the second end such that the inductively heatable susceptor extends to the intermediate point, wherein the aerosol-generating material in the second region is compressed in a direction perpendicular to an axis of the aerosol-generating material or in the direction of insertion when the inductively heatable susceptor is inserted into the first region.

17. an aerosol generation device (42) comprising an induction coil (56) defining a cavity (54), the induction coil (56) being configured to generate an alternating current electromagnetic field; 11. An aerosol-generating article (1, 2, 3, 4) according to any one of claims 1 to 10, wherein the inductively heatable susceptor (22) is disposed within the cavity (54) such that the longitudinal axis of the inductively heatable susceptor (22) is substantially aligned with the longitudinal axis of the cavity (54); An aerosol generating system (40) comprising:

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