An aerosol-generating article comprising a plurality of aerosol-generating elements

Abstract

An aerosol-generating article (100) for an aerosol-generating device (501) is provided. The aerosol-generating article (100) comprises a pouch (101). The pouch (101) comprises an outer wall (102) defining a substrate compartment (103). The substrate compartment (103) comprises a plurality of aerosol-generating elements (104). The plurality of aerosol-generating elements (104) comprises a carrier medium and an aerosol-generating substrate sorbed in the carrier medium. The aerosol-generating substrate is configured to generate an aerosol upon heating of the pouch (101). The outer wall (102) is flexible and air permeable.

Description

Technical Field

[0001] This disclosure relates to an aerosol generating article comprising a bag, the bag including a plurality of aerosol generating elements. This disclosure also relates to an aerosol generating system comprising an aerosol generating article and an aerosol generating apparatus configured to heat the aerosol generating article. Background Technology

[0002] Aerosol-generating articles, such as those in which an aerosol-generating matrix containing a tobacco matrix is ​​heated rather than burned, are known in the art. In heated aerosol-generating articles, aerosols are generated by heating the aerosol-generating matrix.

[0003] A heating element for heating an aerosol-generating matrix in an aerosol-generating article is known. The heating element may be disposed in the article in the form of a sensor element capable of being heated when penetrated by a changing magnetic field. Alternatively or additionally, the heating element may be disposed in an aerosol-generating apparatus for generating inhalable vapor. Such an apparatus can heat the aerosol-generating matrix contained in the aerosol-generating article without burning the aerosol-generating matrix.

[0004] Handheld electrically operated aerosol generation systems, including a cylinder and an electrically operated heater, are also known. The cylinder includes a storage section containing a supply source of a liquid aerosol generation matrix, and the electrically operated heater is configured to heat the liquid aerosol generation matrix to generate an inhalable aerosol. Such known handheld electrically operated aerosol generation systems include an aerosol generation device that includes a control circuitry and a power source for supplying power to the electrically operated heater. The electrically operated heater typically includes a conductive coil wound around an elongated wick that transfers the liquid aerosol generation matrix from the storage section of the cylinder to the coil. In use, an electric current can pass through the coil to heat the liquid aerosol generation matrix, thereby generating an aerosol.

[0005] It is also known to provide a liquid or gel aerosol generating matrix in a reservoir. Known reservoirs may include hollow containers configured to hold the aerosol generating matrix.

[0006] Aerosol generating matrices containing, for example, liquid or gel formulations may be susceptible to leakage of the liquid or gel formulation during storage, handling, and use. Leakage of liquid or gel formulations may be exacerbated by high ambient temperatures and humidity. Loss of liquid or gel formulations through leakage may adversely reduce the lifespan of aerosol generating articles including the aerosol generating matrix. Leakage of liquid or gel formulations can negatively impact the overall performance of aerosol generating articles. For example, leakage of liquid or gel formulations may negatively affect the consistency of inhalable aerosols generated by an aerosol generating system including an aerosol generating article. Leakage of liquid or gel formulations can adversely impair or weaken the function of other components of the aerosol generating system. For example, leakage of liquid or gel formulations from the aerosol generating matrix can adversely impair or weaken the function of aerosol generating devices that interact with the aerosol generating matrix.

[0007] Volatile components such as flavorings can evaporate, migrate, or sublimate over time. Evaporation, migration, and sublimation of flavorings can be exacerbated by high ambient temperatures and humidity. Loss of flavorings due to evaporation, migration, or sublimation during storage can negatively impact the overall performance of aerosol-generating articles containing such aerosol-generating matrices. This can adversely shorten the shelf life of aerosol-generating articles. For example, the evaporation, migration, and sublimation of one or more flavorings over time can negatively affect the perceived taste of inhalable aerosols generated by an aerosol-generating system that includes aerosol-generating articles.

[0008] In aerosol generation systems that include an aerosol generation matrix containing a liquid or gel formulation, energy can be supplied to the heater for a period of time after heater actuation until a significant amount of the liquid or gel formulation is heated to a sufficient temperature to generate an aerosol. This can result in the use of a large amount of energy to generate the aerosol. It can also cause a short delay after heater actuation before the liquid or gel formulation is heated to a sufficient temperature to generate an aerosol. Therefore, poor aerosol generation and delivery may occur in the early stages of the user experience.

[0009] Liquid and gel formulations of aerosol-generating articles used in aerosol-generating systems may include one or more components that thermally degrade upon exposure to extreme temperatures, such as during periods of intense heating. This gradual thermal degradation can negatively impact the overall performance of aerosol-generating articles containing liquid or gel formulations. For example, the gradual thermal degradation of one or more components in a liquid or gel formulation over time may negatively affect the perceived taste of inhalable aerosols generated by an aerosol-generating system including an aerosol-generating article. Summary of the Invention

[0010] It is desirable to provide an aerosol generating article comprising an aerosol generating matrix, wherein leakage of the aerosol generating matrix is ​​prevented or reduced during storage, handling and use of the aerosol generating article, compared with known aerosol generating articles.

[0011] It is desirable to provide an aerosol generating article comprising an aerosol generating matrix, wherein, compared with known aerosol generating articles, evaporation, migration or sublimation of one or more components in the aerosol generating matrix over time is prevented or reduced.

[0012] It is desirable to provide an aerosol generating article comprising an aerosol generating matrix, wherein thermal degradation of one or more components of the aerosol generating matrix is ​​prevented or reduced compared to known aerosol generating articles.

[0013] It is desirable to provide an aerosol generating article comprising an aerosol generating matrix that allows for more energy-efficient aerosol generation compared to known aerosol generating articles.

[0014] It is desirable to provide an aerosol generating article comprising an aerosol generating matrix that allows for more consistent aerosol generation and delivery to the user compared to known aerosol generating articles.

[0015] It is desirable to provide an aerosol generating article comprising an aerosol generating matrix that allows for greater control over aerosol generation and delivery to the user compared to known aerosol generating articles.

[0016] The aim is to provide an aerosol-generating article that can be manufactured using existing manufacturing equipment.

[0017] It is desirable to provide an aerosol-generating article comprising a smaller amount of cellulosic material compared to known aerosol-generating articles.

[0018] According to this disclosure, an aerosol generating article for an aerosol generating apparatus is provided. The aerosol generating article may include a bag. The bag may include an outer wall defining a matrix compartment. The matrix compartment may include a plurality of aerosol generating elements. The plurality of aerosol generating elements may include a carrier medium. The aerosol generating matrix may be adsorbed in the carrier medium. The aerosol generating matrix may be configured to generate aerosols when the bag is heated. The outer wall may be flexible and air-permeable.

[0019] According to the present invention, an aerosol generating article for an aerosol generating apparatus is provided. The aerosol generating article includes a bag. The bag includes an outer wall defining a matrix compartment. The matrix compartment includes a plurality of aerosol generating elements. The plurality of aerosol generating elements include a carrier medium. An aerosol generating matrix is ​​adsorbed in the carrier medium. The aerosol generating matrix is ​​configured to generate an aerosol when the bag is heated. The outer wall is flexible and air-permeable.

[0020] Providing a matrix compartment defined by the outer wall of a bag, comprising a plurality of aerosol generating elements including a carrier medium and an aerosol generating matrix adsorbed in the carrier medium, advantageously reduces or prevents loss of the aerosol generating matrix due to leakage, for example, during the storage, handling, and use of the aerosol generating article according to the invention. This can increase the lifespan of the aerosol generating article according to the invention compared to known aerosol generating articles. Reducing or preventing loss of the aerosol generating matrix during storage, handling, and use can advantageously improve the consistency of the inhalable aerosol generated by the aerosol generating article according to the invention compared to known aerosol generating articles. Reducing or preventing loss of the aerosol generating matrix during the storage, handling, and use of the aerosol generating article according to the invention can advantageously reduce or prevent damage to other components of the aerosol generating system including the aerosol generating matrix.

[0021] A matrix compartment, defined by the outer wall of a bag, comprises a plurality of aerosol-generating elements, including a carrier medium and an aerosol-generating matrix adsorbed within the carrier medium. This advantageously reduces or prevents the evaporation, migration, or sublimation of the aerosol-generating matrix over time. Compared to known aerosol-generating articles, this can advantageously increase the shelf life of the aerosol-generating article according to the invention. Preventing or reducing the evaporation, migration, or sublimation of the aerosol-generating matrix over time can advantageously improve the perceived quality and consistency of the inhalable aerosol generated by the aerosol-generating article according to the invention compared to known aerosol-generating articles. For example, preventing or reducing the evaporation, migration, or sublimation of the aerosol-generating matrix can advantageously improve the perceived taste of the inhalable aerosol generated by the aerosol-generating article according to the invention compared to known aerosol-generating articles.

[0022] Providing a matrix compartment defined by the outer wall of a bag, comprising a plurality of aerosol-generating elements including a carrier medium and an aerosol-generating matrix adsorbed in the carrier medium, advantageously prevents or reduces thermal degradation of the components of the aerosol-generating matrix upon exposure to extreme temperatures (e.g., during periods of intense heating). Preventing or reducing the gradual thermal degradation of the components of the aerosol-generating matrix (e.g., during use) can advantageously improve the perceived quality and consistency of the inhalable aerosol generated by the aerosol-generating article according to the invention compared to known aerosol-generating articles. This can also advantageously increase the lifespan of the aerosol-generating article according to the invention compared to known aerosol-generating articles. For example, preventing or reducing the gradual thermal degradation of the aerosol-generating matrix over time can advantageously improve the perceived taste of the inhalable aerosol generated by the aerosol-generating article according to the invention compared to known aerosol-generating articles.

[0023] Providing a matrix compartment defined by the outer wall of a bag, comprising a plurality of aerosol generating elements including a carrier medium and an aerosol generating matrix adsorbed in the carrier medium, can advantageously result in more energy-efficient aerosol generation compared to known aerosol generating articles. In particular, advantageously, during use of the aerosol generating article, the aerosol generating matrix can be heated to a sufficient temperature to generate aerosols using a reduced amount of energy required to supply the heater compared to known aerosol generating articles. Consequently, advantageously, during use of the aerosol generating article, the aerosol generating matrix can be heated to a sufficient temperature to generate aerosols earlier in the user experience, with a shorter delay after heater actuation compared to known aerosol generating articles.

[0024] A matrix compartment comprising a plurality of aerosol generating elements, defined by the outer wall of a bag, is provided. These aerosol generating elements include a carrier medium and an aerosol generating matrix adsorbed within the carrier medium. This provides advantageously improved control over aerosol generation and delivery to the user compared to known aerosol generating articles. In particular, it is advantageous to select the number of aerosol generating elements, the surface area of ​​the aerosol generating elements, the composition of the aerosol generating elements, the structure of the aerosol generating elements, and the arrangement of the aerosol generating elements to control the rate of aerosol generation when the aerosol generating article is heated during use. For example, during use of the aerosol generating system, the rate and extent of desorption of the aerosol generating matrix from the carrier medium when the carrier medium of the aerosol generating elements is heated can be controllable.

[0025] A bag is provided, comprising an outer wall defining a matrix compartment comprising a plurality of aerosol generating elements, which advantageously allows for the selection, control, and maintenance of the arrangement of the plurality of aerosol generating elements during the manufacturing process. Specifically, during the manufacture of the aerosol generating article, the plurality of aerosol generating elements can be readily arranged within the outer wall of the bag in a selected preferred structural arrangement. This arrangement of the plurality of aerosol generating elements within the matrix compartment can be controlled and maintained during the manufacturing process without disrupting the structure of the selected arrangement of the plurality of aerosol generating elements. Therefore, compared to known aerosol generating articles, the bag provided, comprising an outer wall defining a matrix compartment comprising a plurality of aerosol generating elements, advantageously improves control over aerosol generation and delivery to the user.

[0026] A bag is provided, the bag comprising an outer wall defining a matrix compartment including a plurality of aerosol generating elements, which advantageously allows the manufacture of aerosol generating articles using existing manufacturing equipment. In particular, although the bag of the aerosol generating article of the present invention differs significantly from known oral bags, existing equipment used for manufacturing known oral bags can be used or readily adapted to manufacture the aerosol generating article of the present invention.

[0027] An aerosol-generating article is provided comprising a bag, the bag including an outer wall defining a matrix compartment comprising a plurality of aerosol-generating elements, which results in a reduced amount of cellulosic material compared to known aerosol-generating articles. This improves the environmental sustainability of the aerosol-generating article according to the invention compared to known aerosol-generating articles.

[0028] A matrix compartment comprising a plurality of aerosol generating elements, defined by the outer wall of a bag, is provided. The plurality of aerosol generating elements include a carrier medium and an aerosol generating matrix adsorbed in the carrier medium. By providing a plurality of aerosol generating elements, the aerosolization rate can be advantageously increased compared to known aerosol generating articles. The plurality of aerosol generating elements have a large total surface area for aerosolization of the aerosol generating matrix.

[0029] The flexible outer wall of the bag defining the matrix compartment advantageously allows the bag to conform to the shape of the heating chamber of the aerosol generating apparatus when the aerosol generating article is received therein. Advantageously, the flexible outer wall of the bag defining the matrix compartment can lead to improved heating of the multiple aerosol generating elements because the larger total surface area of ​​the flexible outer wall can be configured to contact the heating elements of the heating chamber of the aerosol generating apparatus. Advantageously, the flexible outer wall of the bag defining the matrix compartment can bring the multiple aerosol generating elements closer to the heating elements of the heating chamber of the aerosol generating apparatus. Advantageously, the flexible outer wall of the bag defining the matrix compartment can increase the aerosolization rate of the aerosol generating matrix adsorbed within the carrier medium of the multiple aerosol generating elements.

[0030] Providing an air-permeable outer wall defining the matrix compartment advantageously allows air to be drawn through the outer wall of the bag to mix with the aerosol generated within the matrix compartment, and then inhaled by the user.

[0031] Unless otherwise stated, the term "aerosol generating element" as used herein refers to a combination of a carrier medium and an aerosol generating matrix adsorbed in the carrier medium.

[0032] As used herein with reference to the present invention, the term "carrier medium" refers to a component configured to contain or retain an aerosol-generating matrix.

[0033] As used herein with reference to this invention, the term "adsorbed in" refers to the process by which a carrier medium retains the aerosol-generating matrix. Adsorption can include one or more of adsorption and absorption. For example, adsorption can include drawing the aerosol-generating matrix into any pores of the carrier medium via capillary action. It should be understood that "adsorbed in" can also refer to the aerosol-generating matrix being adsorbed onto the carrier medium. As described in more detail below, the carrier medium can include a solid continuous matrix structure. In this case, the aerosol-generating matrix can be trapped within the solid continuous matrix structure.

[0034] As used herein with reference to this invention, the term "aerosol-generating matrix" refers to a matrix that, when heated, releases volatile compounds that can condense to form aerosols.

[0035] As used herein with reference to this invention, the term "aerosol" refers to a dispersion of solid particles or droplets, or a combination of solid particles and droplets, in a gas. Aerosols can be visible or invisible. Aerosols may include vapors of substances that are typically liquid or solid at room temperature, as well as solid particles or droplets, or a combination of solid particles and droplets.

[0036] As used herein with reference to this invention, the term "aerosol-generating article" means an article comprising an aerosol-generating matrix capable of releasing volatile compounds that can form aerosols. Aerosol-generating articles may be disposable.

[0037] The aerosol generating article of the present invention is used in an aerosol generating apparatus. That is, the aerosol generating article can be configured for use with an aerosol generating apparatus.

[0038] As used herein with reference to this invention, the term "aerosol generating apparatus" refers to an apparatus that interacts with an aerosol generating matrix to generate aerosols. In some instances, the aerosol generating apparatus heats the aerosol generating matrix to promote the release of volatile compounds from the matrix.

[0039] As used herein with reference to this invention, the term "aerosol generation system" refers to a combination of an aerosol generation device and an aerosol generation product.

[0040] As used herein with reference to the present invention, the terms “upstream,” “downstream,” “proximal,” and “far-side” are used to describe the relative positions of elements or element portions of an aerosol generating article, aerosol generating apparatus, and aerosol generating system according to the present disclosure.

[0041] The aerosol generation system described herein may include a proximal end through which aerosols exit the aerosol generation system during use. The proximal end may also be referred to as the oral end. During use, a user can aspirate from either the proximal end or the oral end of the aerosol generation system to inhale aerosols generated by the aerosol generation article.

[0042] An aerosol generating system may include a distal end opposite to the proximal end or the orifice. The proximal end or the orifice of an aerosol generating system may also be referred to as the downstream end. The distal end of an aerosol generating system may also be referred to as the upstream end. Components or portions of components of an aerosol generating system may be described as being upstream or downstream of each other based on their relative positions between the proximal or downstream end and the distal or upstream end of the aerosol generating system.

[0043] As used herein with reference to this invention, the term "longitudinal" is used to describe the direction between the downstream or proximal end of the aerosol generating article, aerosol generating apparatus, and aerosol generating system according to the invention, and the opposite upstream or distal end. When the aerosol generating article is used within the aerosol generating apparatus, the longitudinal direction of the aerosol generating article may be aligned with the longitudinal direction of the aerosol generating system.

[0044] As used herein with reference to the present invention, the term "length" is used to describe the maximum dimension of an element or part of an element of an aerosol generating article, aerosol generating apparatus, and aerosol generating system according to the present disclosure. Length may be defined in the longitudinal direction or along the longitudinal axis.

[0045] As used herein with reference to this invention, the term "transverse" is used to describe a direction perpendicular to the longitudinal direction or length.

[0046] As used herein with reference to the present invention, the term "width" is used to describe the maximum lateral dimension of an element or part of an element of an aerosol generating article, aerosol generating apparatus, and aerosol generating system according to the present disclosure.

[0047] Unless otherwise stated, references to "section" in aerosol-generating articles or components of aerosol-generating articles refer to a cross section perpendicular to the longitudinal direction or axis or length.

[0048] As used herein with reference to this invention, the term "flexible" is used to describe the ability of a material (particularly the material of the outer wall of the matrix compartment of the bag of aerosol generating articles) to bend easily without breaking. That is, the flexible outer wall of the matrix compartment of the bag of aerosol generating articles has the ability to bend easily without breaking, thereby allowing the aerosol generating articles to conform to the shape of the heating chamber of the aerosol generating device when received therein.

[0049] As used herein with reference to this invention, the term "air-permeable" refers to the ability of a material (particularly the material of the outer wall of the matrix compartment of a bag for an aerosol-generating article) to allow air to pass through the material in both directions. That is, an air-permeable outer wall of the matrix compartment of a bag for an aerosol-generating article allows air to pass through the outer wall into the matrix compartment, mix with the aerosol generated within the matrix compartment, and then return through the outer wall for inhalation by the user.

[0050] The outer wall of the bag may include a material that is heat resistant up to at least 200 degrees Celsius, optionally up to at least 220 degrees Celsius, optionally up to at least 240 degrees Celsius, optionally up to at least 260 degrees Celsius, or optionally up to at least 280 degrees Celsius.

[0051] As used herein with reference to this invention, the term "heat resistant" means that a material will not substantially thermally degrade or decompose when exposed to a given temperature range.

[0052] The outer wall of the bag may comprise a material that is heat-resistant up to at least the operating temperature of the aerosol-generating article when heated during use. In other words, the outer wall of the bag may comprise a material that will not thermally degrade or decompose at the operating temperature of the aerosol-generating article when heated during use. The outer wall of the bag is substantially heat-resistant to degradation at temperatures typically reached during the use of an aerosol-generating system including an aerosol-generating article. This prevents the formation of undesirable thermal decomposition products from the outer wall of the bag.

[0053] The outer wall of the bag may include a nonwoven fabric.

[0054] The outer wall of the bag may include an adhesive. The adhesive may comprise a crosslinked copolymer. The adhesive may comprise a butyl acrylate-ethyl acrylate copolymer.

[0055] The outer wall of the bag may contain one or more materials selected from cellulose, viscose and polyethylene terephthalate.

[0056] The outer wall can be configured to hold multiple aerosol generating elements within a matrix compartment.

[0057] The outer wall of the bag may include multiple pores. Each of the multiple pores in the outer wall of the bag may have a diameter between 10 micrometers and 100 micrometers. Preferably, the outer wall of the bag does not include any pores or openings that would allow any one of the multiple aerosol generating elements to pass through any pore or opening.

[0058] The matrix compartment can have a length of 3 mm or more, 4 mm or more, or 5 mm or more.

[0059] The matrix compartment can have a length of less than or equal to 6 mm, less than or equal to 5 mm, or less than or equal to 4 mm.

[0060] For example, the matrix compartment can have a length between 4 mm and 6 mm. For example, the matrix compartment can have a length of about 4 mm. For example, the matrix compartment can have a length of about 5 mm.

[0061] The matrix compartment can have a width of 5 mm or more, or 6 mm or more.

[0062] The matrix compartment can have a width of less than or equal to 7 mm or less than or equal to 6 mm.

[0063] For example, the matrix compartment can have a width between 5 mm and 7 mm. For example, the matrix compartment can have a width of about 6 mm.

[0064] The volume of the matrix compartment can be greater than or equal to 60 cubic millimeters, greater than or equal to 100 cubic millimeters, or greater than or equal to 140 cubic millimeters.

[0065] The volume of the substrate compartment can be less than or equal to 230 cubic millimeters, less than or equal to 170 cubic millimeters, less than or equal to 150 cubic millimeters, less than or equal to 130 cubic millimeters, less than or equal to 110 cubic millimeters, or less than or equal to 90 cubic millimeters.

[0066] For example, the volume of the matrix compartment can be between 60 cubic millimeters and 230 cubic millimeters. For example, the volume of the matrix compartment can be about 113 cubic millimeters. For example, the volume of the matrix compartment can be about 141 cubic millimeters.

[0067] The aerosol-generating article may include at least one receptor element. The matrix compartment may include at least one receptor element. The matrix compartment may include a single receptor element. The matrix compartment may include multiple receptor particles. The multiple receptor particles may contain receptor material and may not include the aerosol-generating matrix. The multiple receptor particles may be dispersed or mixed with the multiple aerosol-generating elements within the matrix compartment.

[0068] As used herein with reference to the present invention, the term "sensor" refers to a material that can be heated when penetrated by a changing magnetic field.

[0069] The aerosol generating matrix is ​​adsorbed in the carrier medium of multiple aerosol generating elements.

[0070] Preferably, the aerosol generating matrix comprises a liquid or a gel.

[0071] As used herein with reference to the present invention, the term "gel" is used to describe substantially diluted cross-linked materials that do not exhibit flow when in a steady state.

[0072] Preferably, the aerosol generating matrix contains an aerosol forming agent.

[0073] The aerosol-generating matrix can contain polyols.

[0074] Preferably, in the aerosol generating element according to the invention, the polyol content in the aerosol generating matrix accounts for at least 40% by weight based on the total weight of the aerosol generating element.

[0075] Preferably, in the aerosol generating element according to the present invention, the polyol content in the aerosol generating matrix is ​​less than or equal to 75% by weight, based on the total weight of the aerosol generating element.

[0076] As defined above, the aerosol generating element according to the present invention comprises a polyol as a component of the aerosol generating matrix dispersed within a solid continuous matrix structure.

[0077] Polyols act as aerosol forming agents in aerosol generating elements. Suitable polyols for use in aerosol generating elements include, but are not limited to, propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol. Preferably, in the aerosol generating element according to the invention, the polyol is selected from glycerol, propylene glycol, and combinations thereof. In a particularly preferred embodiment, the polyol is glycerol.

[0078] The aerosol-generating matrix may contain at least one alkaloid.

[0079] As used herein with reference to this invention, the term "alkaloid compound" is used to describe any of a class of naturally occurring organic compounds containing one or more basic nitrogen atoms. Typically, alkaloids contain at least one nitrogen atom in an amine-type structure. This or other nitrogen atom in the alkaloid compound molecule can function as a base in acid-base reactions. In most alkaloid compounds, one or more of the nitrogen atoms are part of a cyclic system, such as a heterocycle. In nature, alkaloid compounds are primarily found in plants, and are particularly common in certain flowering plant families. However, some alkaloid compounds are found in animal species and fungi. In the context of this invention, the term "alkaloid compound" is used to describe alkaloid compounds of natural origin and synthetically manufactured alkaloid compounds. Suitable alkaloid compounds for use in aerosol generating elements according to the invention include, but are not limited to, nicotine and neonicotinoids.

[0080] In a preferred embodiment, the aerosol generating matrix contains nicotine or neonicotinoids.

[0081] In a particularly preferred embodiment, the aerosol generating matrix contains nicotine.

[0082] As used herein with reference to this invention, the term "nicotine" is used to describe nicotine, nicotine base, or nicotine salt. In embodiments in which the aerosol generating element comprises nicotine base or nicotine salt, the amount of nicotine described herein is either the amount of free base nicotine or the amount of protonated nicotine.

[0083] Aerosol generating elements may contain natural or synthetic nicotine.

[0084] Aerosol generating elements may contain one or more monoproton nicotine salts.

[0085] As used herein with reference to this invention, the term "monoproton nicotine salt" is used to describe nicotine salts of monoproton acids.

[0086] Generally, aerosol generating elements may contain up to about 10% by weight of alkaloid compounds.

[0087] In some embodiments, the aerosol-generating matrix dispersed within a continuous solid matrix structure further comprises an acid. More preferably, the aerosol-generating matrix dispersed within a continuous solid matrix structure comprises one or more organic acids. Even more preferably, the aerosol-generating matrix dispersed within a continuous solid matrix structure comprises one or more carboxylic acids.

[0088] The carboxylic acids in the aerosol generating matrix suitable for the aerosol generating element according to the present invention include, but are not limited to: 2-ethylbutyric acid, acetic acid, adipic acid, benzoic acid, butyric acid, cinnamic acid, cycloheptanecarboxylic acid, fumaric acid, glycolic acid, hexanoic acid, lactic acid, acetylated propionic acid, malic acid, myristic acid, caprylic acid, oxalic acid, propionic acid, pyruvic acid, succinic acid, and undecanoic acid.

[0089] In a particularly preferred embodiment, the acid is selected from lactic acid, levulinic acid, benzoic acid, citric acid, and combinations thereof. Most preferably, the acid is lactic acid.

[0090] In embodiments of aerosol-generating elements in which the aerosol-generating matrix dispersed within a continuous solid matrix structure contains nicotine, the inclusion of an acid is particularly preferred because the presence of an acid has been observed to stabilize dissolved species in the aerosol-generating matrix, such as nicotine and other plant extracts. While not wishing to be bound by theory, it should be understood that acids can interact with nicotine molecules, thereby stabilizing protonated nicotine. Since protonated nicotine is non-volatile, it is more likely to be present in the liquid or particulate phase of the aerosol obtained by heating the aerosol-generating element than in the gas phase. Therefore, nicotine loss during the manufacture of the aerosol-generating element can be minimized, and it can advantageously ensure a higher and better controlled nicotine delivery to consumers.

[0091] Aerosol generating elements may contain up to about 10% by weight of acid.

[0092] Preferably, the acid content in the aerosol generating matrix dispersed in the solid porous substrate accounts for at least 0.5% by weight of the total weight of the aerosol generating element. More preferably, the acid content in the aerosol generating matrix dispersed in the solid porous substrate accounts for at least 1% by weight of the total weight of the aerosol generating element. Even more preferably, the acid content in the aerosol generating matrix dispersed in the solid porous substrate accounts for at least 2% by weight of the total weight of the aerosol generating element.

[0093] Preferably, based on the total weight of the aerosol generating elements, the acid content in the aerosol generating matrix dispersed in the solid porous substrate is less than or equal to 8% by weight. More preferably, based on the total weight of the aerosol generating elements, the acid content in the aerosol generating matrix dispersed in the solid porous substrate is less than or equal to 5% by weight.

[0094] In some embodiments, based on the total weight of the aerosol generating elements, the acid content in the aerosol generating matrix dispersed in the solid porous substrate is 0.5% to 10% by weight, preferably 1% to 10% by weight, and more preferably 2% to 10% by weight.

[0095] In other embodiments, based on the total weight of the aerosol generating elements, the acid content in the aerosol generating matrix dispersed in the solid porous substrate is from 0.5% to 8% by weight, preferably from 1% to 8% by weight, and more preferably from 2% to 8% by weight.

[0096] In another embodiment, based on the total weight of the aerosol generating elements, the acid content in the aerosol generating matrix dispersed in the solid porous substrate is 0.5% to 5% by weight, preferably 1% to 5% by weight, and more preferably 2% to 5% by weight.

[0097] When a polyvalent acid (such as a polyvalent carboxylic acid) is present in combination with nicotine in an aerosol-generating matrix dispersed within a solid porous substrate, a molar ratio of acid groups to nicotine between about 0.5:1 and about 2:1, more preferably between about 0.75:1 and about 1.5:1, and most preferably about 1:1, is preferably provided. The use of polyvalent acids thus allows for the use of lower weight amounts of acid while still providing the same level of nicotine protonation.

[0098] The aerosol generating element according to the invention preferably contains less than or equal to about 25% by weight of water.

[0099] More preferably, the aerosol generating element contains less than or equal to about 20% by weight of water. Even more preferably, the aerosol generating element contains less than or equal to about 15% by weight of water.

[0100] The aerosol generating element according to the invention may optionally further comprise a flavoring agent. The flavoring agent may be in liquid or solid form. Optionally, the flavoring agent may be provided in microencapsulated form, wherein the flavoring agent is released upon heating.

[0101] Preferably, based on the total weight of the aerosol generating element, the aerosol generating element contains at least about 0.05% by weight of flavoring agent, more preferably at least about 0.1% by weight of flavoring agent. Based on the total weight of the aerosol generating element, the aerosol generating element preferably contains less than or equal to about 1% by weight of flavoring agent, more preferably less than or equal to about 0.5% by weight of flavoring agent.

[0102] In some embodiments, the aerosol generating element comprises about 0.05% to about 1% by weight of a flavoring agent, preferably about 0.05% to about 0.5% by weight, based on the total weight of the aerosol generating element. In other embodiments, the aerosol generating element comprises about 0.1% to about 1% by weight of a flavoring agent, preferably about 0.1% to about 0.5% by weight, based on the total weight of the aerosol generating element.

[0103] Suitable flavoring agents used in the aerosol generating elements according to the present invention include, but are not limited to: menthol, peppermint such as peppermint or spearmint, cocoa, licorice, fruits (such as citrus), γ-octanolactone, vanillin, spices (such as cinnamon), methyl salicylate, linalool, eugenol, eucalyptol, bergamot oil, eugenol oil, geranium oil, lemon oil, ginger oil, and tobacco flavorings.

[0104] Multiple aerosol generating elements can have any suitable shape. For example, multiple aerosol generating elements can have a substantially elliptical shape, a substantially oval shape, or a substantially spherical shape.

[0105] Preferably, the plurality of aerosol generating elements are substantially spherical. Advantageously, substantially spherical aerosol generating elements have the largest surface area for a given volume.

[0106] The matrix compartment may include 2 or more aerosol generating elements, 3 or more aerosol generating elements, 5 or more aerosol generating elements, 10 or more aerosol generating elements, 20 or more aerosol generating elements, 30 or more aerosol generating elements, or 40 or more aerosol generating elements.

[0107] The matrix compartment may include 200 or less aerosol generating elements, 100 or less aerosol generating elements, 75 or less aerosol generating elements, 50 or less aerosol generating elements, or 40 or less aerosol generating elements.

[0108] The matrix compartment may include 2 to 200 aerosol generating elements, 2 to 100 aerosol generating elements, 2 to 75 aerosol generating elements, 2 to 50 aerosol generating elements, 2 to 40 aerosol generating elements, 3 to 200 aerosol generating elements, 3 to 100 aerosol generating elements, 3 to 75 aerosol generating elements, 3 to 50 aerosol generating elements, 3 to 40 aerosol generating elements, 5 to 200 aerosol generating elements, 5 to 100 aerosol generating elements, 5 to 75 aerosol generating elements, 5 to 50 aerosol generating elements, 5 to 40 aerosol generating elements, 10 to 2 Aerosol generating elements of 10 to 100, 10 to 75, 10 to 50, 10 to 40, 20 to 200, 20 to 100, 20 to 75, 20 to 50, 20 to 40, 30 to 200, 30 to 100, 30 to 75, 30 to 50, or 30 to 40.

[0109] For example, the matrix compartment may include approximately 38 aerosol generating elements.

[0110] The average mass of multiple aerosol generating elements can be greater than or equal to 0.6 mg, greater than or equal to 2 mg, greater than or equal to 10 mg, greater than or equal to 30 mg, greater than or equal to 50 mg, or greater than or equal to 70 mg.

[0111] The average mass of multiple aerosol generating elements can be less than or equal to 80 mg, less than or equal to 60 mg, less than or equal to 40 mg, less than or equal to 20 mg, less than or equal to 10 mg, or less than or equal to 5 mg.

[0112] For example, the average mass of multiple aerosol generating elements can be between 0.6 mg and 80 mg.

[0113] As used herein with reference to the present invention, the term "average mass of the plurality of aerosol generating elements" is defined as the total mass of the plurality of aerosol generating elements divided by the total number of the plurality of aerosol generating elements. Preferably, the total number of the plurality of aerosol generating elements is equal to the total number of aerosol generating elements in the matrix compartment.

[0114] As used herein with reference to the present invention, the term "total mass of a plurality of aerosol generating elements" is defined as the sum of the masses of each of the plurality of aerosol generating elements.

[0115] The total mass of multiple aerosol generating elements can be greater than or equal to 20 mg, greater than or equal to 60 mg, or greater than or equal to 100 mg.

[0116] The total mass of multiple aerosol generating elements can be less than or equal to 120 mg, greater than or equal to 80 mg, or greater than or equal to 40 mg.

[0117] For example, the total mass of multiple aerosol generating elements can be between 20 mg and 120 mg.

[0118] The average surface area of ​​multiple aerosol generating elements can be greater than or equal to 3 square millimeters, greater than or equal to 7 square millimeters, greater than or equal to 10 square millimeters, greater than or equal to 30 square millimeters, greater than or equal to 50 square millimeters, or greater than or equal to 70 square millimeters.

[0119] The average surface area of ​​multiple aerosol generating elements can be less than or equal to 80 square millimeters, less than or equal to 60 square millimeters, less than or equal to 40 square millimeters, less than or equal to 20 square millimeters, less than or equal to 10 square millimeters, or less than or equal to 5 square millimeters.

[0120] For example, the average surface area of ​​multiple aerosol generating elements can be between 3 square millimeters and 80 square millimeters.

[0121] As used herein with reference to this invention, the term "average surface area of ​​the plurality of aerosol generating elements" is defined as the total surface area of ​​the plurality of aerosol generating elements divided by the total number of the plurality of aerosol generating elements. Preferably, the total number of the plurality of aerosol generating elements is equal to the total number of aerosol generating elements in the matrix compartment.

[0122] As used herein with reference to the present invention, the term "total surface area of ​​a plurality of aerosol generating elements" is defined as the sum of the surface areas of each of the plurality of aerosol generating elements.

[0123] The total surface area of ​​multiple aerosol generating elements can be greater than or equal to 120 square millimeters, greater than or equal to 240 square millimeters, or greater than or equal to 480 square millimeters.

[0124] The total surface area of ​​multiple aerosol generating elements can be less than or equal to 650 square millimeters, less than or equal to 500 square millimeters, less than or equal to 350 square millimeters, or less than or equal to 200 square millimeters.

[0125] For example, the total surface area of ​​multiple aerosol generating elements can be between 120 square millimeters and 650 square millimeters.

[0126] The average diameter of multiple aerosol generating elements can be greater than or equal to 1 mm, greater than or equal to 2 mm, greater than or equal to 3 mm, or greater than or equal to 4 mm.

[0127] The average diameter of multiple aerosol generating elements can be less than or equal to 5 mm, less than or equal to 4 mm, less than or equal to 3 mm, or less than or equal to 2 mm.

[0128] The average diameter of multiple aerosol generating elements can be between 1 mm and 5 mm, 1 mm and 4 mm, 1 mm and 3 mm, 1 mm and 2 mm, 2 mm and 5 mm, 2 mm and 4 mm, 2 mm and 3 mm, 3 mm and 5 mm, 3 mm and 4 mm, or 4 mm and 5 mm.

[0129] As used herein with reference to this invention, the term "average diameter of the plurality of aerosol generating elements" is defined as the sum of the diameters of each of the plurality of aerosol generating elements divided by the total number of the plurality of aerosol generating elements. Preferably, the total number of the plurality of aerosol generating elements is equal to the total number of aerosol generating elements in the matrix compartment.

[0130] For the avoidance of ambiguity, as used herein with reference to this invention, the term "diameter" is used to describe the maximum dimension of an element or part of an element in an aerosol generating article, aerosol generating apparatus, and aerosol generating system according to this disclosure. For elements having a substantially circular cross-section or a substantially spherical shape, the term "diameter" refers to the diameter of the circular cross-section or the diameter of the sphere, respectively. However, when multiple aerosol generating elements have shapes that are not substantially spherical, the term "diameter" may be used to refer to the maximum dimension of the multiple aerosol generating elements.

[0131] The median diameter of multiple aerosol generating elements can be greater than or equal to 1 mm, greater than or equal to 2 mm, greater than or equal to 3 mm, or greater than or equal to 4 mm.

[0132] The median diameter of multiple aerosol generating elements can be less than or equal to 5 mm, less than or equal to 4 mm, less than or equal to 3 mm, or less than or equal to 2 mm.

[0133] The median diameter of multiple aerosol generating elements can be between 1 mm and 5 mm, 1 mm and 4 mm, 1 mm and 3 mm, 1 mm and 2 mm, 2 mm and 5 mm, 2 mm and 4 mm, 2 mm and 3 mm, 3 mm and 5 mm, 3 mm and 4 mm, or 4 mm and 5 mm.

[0134] As used herein with reference to this invention, the term "median diameter of a plurality of aerosol generating elements" refers to "the D50 size of the plurality of aerosol generating elements." The D50 size is the diameter of an aerosol generating element that divides the diameter distribution of the plurality of aerosol generating elements into two halves (where one half of the plurality of aerosol generating elements is larger than the D50 size, and the other half is smaller than the D50 size). The diameter distribution of the plurality of aerosol generating elements can be determined by laser diffraction. For example, the particle size distribution can be determined by laser diffraction using a Malvern Mastersizer 3000 laser diffractometer according to the manufacturer's instructions.

[0135] The maximum diameter of multiple aerosol generating elements can be less than or equal to 5 mm, less than or equal to 4 mm, less than or equal to 3 mm, or less than or equal to 2 mm.

[0136] As used herein with reference to this invention, the term "maximum diameter of the plurality of aerosol generating elements" refers to the largest diameter of the plurality of aerosol generating elements. In other words, the diameter of any one of the plurality of aerosol generating elements can be greater than the maximum diameter of the plurality of aerosol generating elements.

[0137] The minimum diameter of multiple aerosol generating elements can be greater than or equal to 1 mm, greater than or equal to 2 mm, greater than or equal to 3 mm, greater than or equal to 4 mm, or greater than or equal to 5 mm.

[0138] As used herein with reference to this invention, the term "minimum diameter of the plurality of aerosol generating elements" refers to the smallest diameter of the plurality of aerosol generating elements. In other words, the diameter of any one of the plurality of aerosol generating elements can be smaller than the minimum diameter of the plurality of aerosol generating elements.

[0139] When the outer wall of the bag includes at least one of a plurality of pores and a plurality of openings, the maximum width of at least one of the plurality of pores and openings can be less than the minimum diameter of the plurality of aerosol generating elements. In other words, the diameter of any of the plurality of aerosol generating elements can be less than the width of any pore or opening in the outer wall of the bag. Advantageously, this prevents any one of the plurality of aerosol generating elements from entering any pore or opening in the outer wall of the bag.

[0140] The average volume of multiple aerosol generating elements can be greater than or equal to 0.5 cubic millimeters, greater than or equal to 5 cubic millimeters, greater than or equal to 15 cubic millimeters, greater than or equal to 30 cubic millimeters, or greater than or equal to 60 cubic millimeters.

[0141] The average volume of multiple aerosol generating elements can be less than or equal to 70 cubic millimeters, less than or equal to 40 cubic millimeters, less than or equal to 20 cubic millimeters, less than or equal to 10 cubic millimeters, or less than or equal to 4 cubic millimeters.

[0142] For example, the average volume of multiple aerosol generating elements can be between 0.5 cubic millimeters and 70 cubic millimeters.

[0143] As used herein with reference to this invention, the term "average volume of the plurality of aerosol generating elements" is defined as the total volume of the plurality of aerosol generating elements divided by the total number of the plurality of aerosol generating elements. Preferably, the total number of the plurality of aerosol generating elements is equal to the total number of aerosol generating elements in the matrix compartment.

[0144] As used herein with reference to the present invention, the term "total volume of a plurality of aerosol generating elements" is defined as the sum of the volumes of each of the plurality of aerosol generating elements.

[0145] The total volume of multiple aerosol generating elements can be greater than or equal to 20 cubic millimeters, greater than or equal to 50 cubic millimeters, or greater than or equal to 80 cubic millimeters.

[0146] The total volume of multiple aerosol generating elements can be less than or equal to 105 cubic millimeters, less than or equal to 70 cubic millimeters, or less than or equal to 35 cubic millimeters.

[0147] For example, the total volume of multiple aerosol generating elements can be between 20 cubic millimeters and 105 cubic millimeters.

[0148] The total volume of the multiple aerosol generating elements can be greater than or equal to 40% of the total volume of the matrix compartment, greater than or equal to 50% of the total volume of the matrix compartment, greater than or equal to 60% of the total volume of the matrix compartment, greater than or equal to 70% of the total volume of the matrix compartment, or greater than or equal to 80% of the total volume of the matrix compartment.

[0149] The total volume of multiple aerosol generating elements can be less than or equal to 90%, 80%, 70%, 60%, or 50% of the total volume of the matrix compartment.

[0150] For example, the total volume of multiple aerosol generating elements can be between 40% and 70% of the total volume of the matrix compartment.

[0151] The average density of multiple aerosol generating elements can be greater than or equal to 1 mg / mm³, or greater than or equal to 1.1 mg / mm³.

[0152] The average density of multiple aerosol generating elements can be less than or equal to 1.2 mg / mm³.

[0153] For example, the average density of multiple aerosol generating elements can be between 1 mg / mm³ and 1.2 mg / mm³.

[0154] As used herein with reference to this invention, the term "average density of a plurality of aerosol generating elements" is defined as the total mass of a plurality of aerosol generating elements divided by the total volume of a plurality of aerosol generating elements.

[0155] To avoid ambiguity, the terms “mass,” “volume,” “surface area,” and “density” for multiple aerosol generating elements may refer to the mass, volume, surface area, and density of the multiple aerosol generating elements before the use of the aerosol generating product, wherein the aerosol generating matrix is ​​adsorbed in the carrier medium of the aerosol generating elements.

[0156] Multiple aerosol generating elements include a carrier medium.

[0157] The carrier medium may include a solid continuous matrix structure and a solid porous substrate dispersed within the solid continuous matrix structure.

[0158] The solid continuous matrix structure can be an alginate matrix.

[0159] Alginate is a "matrix-forming polymer," a term used herein to refer to encapsulating materials in polymeric form that, when contacted with a crosslinked solution of multivalent cations, can generate a three-dimensional polymer matrix due to crosslinking. The resulting polymer matrix is ​​capable of capturing and retaining an aerosol-generating matrix within its crosslinked structure.

[0160] Aerosol generating elements may include an aerosol generating matrix dispersed within a solid continuous matrix structure.

[0161] The aerosol generating matrix can be trapped within a solid continuous matrix structure and can be released from the solid continuous matrix structure when the aerosol generating element is heated.

[0162] Aerosol generating elements may also include solid porous substrates dispersed within a solid continuous matrix structure.

[0163] Solid porous substrates may include activated carbon.

[0164] Based on the total weight of the aerosol generating elements, the activated carbon content can account for at least 5% by weight.

[0165] A portion of the aerosol-generating matrix can be adsorbed within a solid porous substrate. In the aerosol-generating element according to the invention, the solid continuous matrix structure is an alginate matrix. Furthermore, the aerosol-generating matrix dispersed within the solid continuous matrix structure comprises a polyol, and based on the total weight of the aerosol-generating element, the polyol content in the aerosol-generating matrix trapped within the solid continuous matrix structure is at least 40% by weight. Based on the total weight of the aerosol-generating element, the activated carbon content is subsequently at least 5% by weight.

[0166] Preferably, in the aerosol generating element according to the invention, the activated carbon content is at least 10% by weight based on the total weight of the aerosol generating element.

[0167] Preferably, in the aerosol generating element according to the present invention, the activated carbon content is less than or equal to 25% by weight based on the total weight of the aerosol generating element.

[0168] As used herein with reference to this invention, the term "activated carbon" refers to a highly porous form of carbon with pores having a wide range of pore sizes, from visible cracks and fissures to molecular-sized cracks and fissures, resulting in a very high internal surface area, making it ideal for adsorption applications. Activated carbon is suitably defined by ASTM D2652-11 (re-approved in 2020) "Standard Terminology Concerning Activated Carbon" as "a family of carbonaceous materials manufactured by processes that produce adsorption properties." Activation is suitably defined by ASTM D2652-11 (re-approved in 2020) as "any process of treating a substance to produce adsorption properties." Activated carbon can be formed by the pyrolysis of organic materials.

[0169] Preferably, the aerosol generating element comprises at least 2% by weight of alginate based on the total weight of the aerosol generating element. Preferably, the aerosol generating element comprises less than or equal to 10% by weight of alginate based on the total weight of the aerosol generating element.

[0170] Aerosol-generating matrices can be adsorbed into the pores of the carrier medium.

[0171] The carrier medium can be essentially inert.

[0172] As used herein with reference to the present invention, the term "substantially inert" can mean that the carrier medium is inert at the operating temperature of the aerosol-generating article and is chemically inert relative to the chemical substances that the carrier medium comes into contact with in the aerosol-generating article.

[0173] The carrier medium can be chemically inert. In particular, the carrier medium can be chemically inert relative to the aerosol-generating matrix adsorbed in the carrier medium.

[0174] The carrier medium can be inert at the operating temperature of the aerosol-generating article. The carrier medium is substantially resistant to thermal degradation at temperatures typically reached during the use of an aerosol-generating system that includes the aerosol-generating article. This prevents the formation of undesirable thermal decomposition products from the carrier medium.

[0175] The carrier medium may not contribute to the aerosols generated during the use of an aerosol generation system that includes aerosol-generating articles.

[0176] The carrier medium can have a loading capacity of greater than or equal to 50% by weight of the aerosol generation matrix.

[0177] The matrix compartment may also include tobacco or tobacco material. That is, in addition to multiple aerosol generating elements, the matrix compartment may also include tobacco or tobacco material.

[0178] Tobacco or tobacco materials may include homogenized tobacco materials.

[0179] As used herein with reference to this invention, the term "homogenized tobacco material" refers to a material formed by agglomerating particulate tobacco.

[0180] Tobacco or tobacco materials may be provided as shredded tobacco.

[0181] Tobacco or tobacco materials may include multiple tobacco material fragments, such as tobacco shreds fillers or fragments of homogenized tobacco materials.

[0182] As used herein with reference to this invention, the term "tobacco shredded filler" is used to describe multiple strands of tobacco leaves.

[0183] As used herein with reference to this invention, the term "strip" refers to an element whose length is significantly greater than its width and thickness.

[0184] As used herein with reference to this invention, the term "strand" describes an elongated material element whose length is significantly greater than its width and thickness. The term "strand" should be considered to include strips, shreds, and any other homogenized tobacco material having a similar form.

[0185] Homogenized tobacco material strips can be formed from sheets of homogenized tobacco material, for example, by cutting or shredding. Homogenized tobacco material strips can also be formed by other methods, such as extrusion.

[0186] As used herein with reference to this invention, the term "sheet" refers to a layered element whose width and length are significantly greater than its thickness.

[0187] Tobacco or tobacco materials may include aggregated sheets of homogeneous tobacco material. As used herein with reference to the present invention, the term "aggregate" is used to describe a sheet that is wound, folded, or otherwise compressed or shrunken substantially transverse to the longitudinal axis of the aerosol-generating article.

[0188] The sheet of homogenized tobacco material can be curled. As used herein with reference to this invention, the term "curled" means that the sheet has a plurality of substantially parallel ridges or corrugations. Tobacco or tobacco material may include aggregated curled sheets of homogenized tobacco material.

[0189] Multiple aerosol generating elements can be mixed with tobacco or tobacco material. Multiple aerosol generating elements can be embedded in tobacco or tobacco material. Multiple aerosol generating elements can be dispersed within tobacco or tobacco material. For example, multiple aerosol generating elements can be dispersed within shredded tobacco.

[0190] The plurality of aerosol generating elements may include a first aerosol generating element and a second aerosol generating element. For example, the plurality of aerosol generating elements may include a plurality of first aerosol generating elements and a plurality of second aerosol generating elements.

[0191] The second aerosol generating element may have a different composition than the first aerosol generating element. The carrier medium of the second aerosol generating element may also have a different composition than the carrier medium of the first aerosol generating element.

[0192] The aerosol generating matrix adsorbed in the carrier medium of the second aerosol generating element may have a different composition than the aerosol generating matrix adsorbed in the carrier medium of the first aerosol generating element. That is, the first aerosol generating element may have a first aerosol generating matrix adsorbed in the carrier medium of the first aerosol generating element, and the second aerosol generating element may have a second aerosol generating matrix adsorbed in the carrier medium of the second aerosol generating element, the second aerosol generating matrix having a different composition than the first aerosol generating matrix.

[0193] The second aerosol generating element may have a different diameter than the first aerosol generating element. The second aerosol generating element may have a different volume than the first aerosol generating element. The second aerosol generating element may have a different mass than the first aerosol generating element. The second aerosol generating element may have a different surface area than the first aerosol generating element.

[0194] For example, the second aerosol generating element may have a different diameter and a different composition than the first aerosol generating element.

[0195] As used herein with reference to this invention, the term "different composition" means one or more of different chemical components, different chemical structures, different material structures, or different ratios of chemical components.

[0196] As used herein with reference to this invention, the terms “different diameters,” “different volumes,” “different masses,” and “different surface areas” mean that the diameter, volume, mass, and surface area each have a difference of at least 10%.

[0197] For example, in the case where multiple aerosol generating elements include multiple first aerosol generating elements and multiple second aerosol generating elements, the multiple second aerosol generating elements may have one or more of the following characteristics that are different from the multiple first aerosol generating elements: different average diameter, different average volume, different average mass, and different average surface area.

[0198] As used herein with reference to this invention, the terms “different average diameters,” “different average volumes,” “different average masses,” and “different average surface areas” mean that the average diameter, average volume, average mass, and average surface area each have a difference of at least 10%.

[0199] The matrix compartment can be a single matrix compartment. In other words, the aerosol generating article may include only one matrix compartment. The first aerosol generating element and the second aerosol generating element can be located in a single matrix compartment. That is, the first aerosol generating element and the second aerosol generating element can be located in the same matrix compartment. The first aerosol generating element and the second aerosol generating element can be in contact with each other. The first aerosol generating element and the second aerosol generating element can be mixed with each other. For example, multiple first aerosol generating elements and multiple second aerosol generating elements can be located in a single matrix compartment.

[0200] The matrix compartment may include a first matrix sub-compartment and a second matrix sub-compartment. That is, the matrix compartment can be divided into two matrix sub-compartments. A first aerosol generating element may be located in the first matrix sub-compartment, and a second aerosol generating element may be located in the second matrix sub-compartment. In other words, the first aerosol generating element may be located in a different matrix compartment than the second aerosol generating element. The first and second aerosol generating elements may not be in contact with each other. For example, multiple first aerosol generating elements may be located in the first matrix sub-compartment, and multiple second aerosol generating elements may be located in the second matrix sub-compartment.

[0201] The first and second matrix sub-compartments may have one or both of substantially the same length and substantially the same width. The first and second matrix sub-compartments may have substantially the same volume.

[0202] It should be understood that any feature described herein with respect to “matrix compartment” may be applied to any of the following: a single matrix compartment, a matrix compartment comprising a first matrix sub-compartment and a second matrix compartment, or each of the first matrix compartment and the second matrix compartment.

[0203] The second matrix sub-compartment may be downstream of the first matrix sub-compartment. The second matrix sub-compartment may be arranged parallel to the first matrix sub-compartment along the longitudinal axis of the bag. The second matrix sub-compartment may be arranged parallel to the first matrix sub-compartment along the longest dimension of the bag. Preferably, when the aerosol-generating article is received in the aerosol-generating apparatus, the second matrix sub-compartment is arranged parallel to the first matrix sub-compartment. That is, when the aerosol-generating article is received in the aerosol-generating apparatus, the second matrix sub-compartment is preferably neither downstream nor upstream of the first matrix sub-compartment.

[0204] The second matrix sub-compartment can be separated from the first matrix sub-compartment by an intermediate wall. The intermediate wall can be configured to prevent contact between the first aerosol generating element and the second aerosol generating element. Preferably, the intermediate wall does not include any channels through it that would allow either the first or second aerosol generating element to pass through any of the channels.

[0205] Preferably, the intermediate wall may not include any channels passing through it, which would allow any one of the plurality of aerosol generating elements to pass through any of the channels. When the intermediate wall of the bag includes at least one of a plurality of pores and a plurality of openings, the maximum width of at least one of the plurality of pores and openings may be less than the minimum diameter of the plurality of aerosol generating elements. In other words, the diameter of any of the plurality of aerosol generating elements may be less than the width of any pore or opening in the intermediate wall of the bag. Advantageously, this prevents any one of the plurality of aerosol generating elements from entering any pore or opening in the intermediate wall of the bag.

[0206] The intermediate wall may not include any passageways passing through it.

[0207] The intermediate wall may contain substantially the same material as the outer wall of the bag. The intermediate wall may have substantially the same heat resistance properties as the outer wall of the bag.

[0208] An aerosol generation system may be provided. The aerosol generation system may include any of the aerosol generation articles and aerosol generation apparatuses disclosed above. The aerosol generation apparatus may be configured to heat the aerosol generation article. The aerosol generation apparatus may include a heating element or a portion thereof for heating the aerosol generation article.

[0209] As used herein with reference to this invention, the term "aerosol generating apparatus" refers to an apparatus that interacts with an aerosol generating matrix to generate aerosols. In some instances, the aerosol generating apparatus heats the aerosol generating matrix to promote the release of volatile compounds from the matrix.

[0210] As used herein with reference to this invention, the term "aerosol generation system" refers to a combination of an aerosol generation device and an aerosol generation product.

[0211] Since the aerosol generation system disclosed herein includes the aerosol generation articles described herein, the advantages described above for the aerosol generation articles also apply to the system itself.

[0212] The aerosol generating apparatus may further include a device cavity configured to receive at least a portion of the aerosol-generated article. Preferably, the device cavity is configured to receive and surround the entire aerosol-generated article.

[0213] The heating element may be an external heating element. The heating element may be positioned around the periphery of the device cavity. The heating element may be located on the inner surface of the device cavity. The heating element may define the aerosol generating article when it is at least partially received in the device cavity. The external heating element may heat multiple aerosol generating elements from outside the matrix compartment. The external heating element may have a substantially flat planar shape. The external heating element may be configured to apply a compressive force to the aerosol generating article when it is at least partially received in the device cavity. Advantageously, providing an external heating element configured to apply a compressive force to the aerosol generating article when it is at least partially received in the device cavity can compress the bag to increase the proximity between the multiple aerosol generating elements within the bag and the external heating element.

[0214] Alternatively or additionally, as discussed above, the matrix compartment may include at least one sensor element.

[0215] The aerosol generating device may include one of a resistance heating element and a sensor element.

[0216] Heating elements may include resistance heating elements. Heating elements may contain resistive materials. Suitable resistive materials include, but are not limited to: semiconductors (such as doped ceramics), electrically “conductive” ceramics (such as, for example, molybdenum disilicide), carbon, graphite, metals, metal alloys, and composite materials made of ceramic and metallic materials. Such composite materials may include doped or undoped ceramics. Examples of suitable doped ceramics include doped silicon carbide. Examples of suitable metals include titanium, zirconium, tantalum, and platinum group metals. Examples of suitable metal alloys include stainless steel; constantan; nickel-containing alloys, cobalt-containing alloys, chromium-containing alloys, aluminum-containing alloys, titanium-containing alloys, zirconium-containing alloys, hafnium-containing alloys, niobium-containing alloys, molybdenum-containing alloys, tantalum-containing alloys, tungsten-containing alloys, tin-containing alloys, gallium-containing alloys, manganese-containing alloys, and iron-containing alloys; and nickel-, iron-, and cobalt-based superalloys; stainless steel; Timetal®; iron-aluminum based alloys and iron-manganese-aluminum based alloys. Timetal® is a registered trademark of Titanium Metals Corporation (1999 Broadway Suite 4300, Denver, Colorado). In composite materials, the resistive material may optionally be embedded in, encapsulated in, or coated with an insulating material, or vice versa, depending on the energy transfer kinetics and desired external physicochemical properties. The heating element may comprise a metal-etched foil insulating between two layers of inert material. In this case, the inert material may comprise Kapton®, polyimide, or mica foil. Kapton® is a registered trademark of EI du Pont de Nemours and Company (1007 Market Street, Wilmington, Delaware 19898, United States of America).

[0217] Heating elements may include sensor elements.

[0218] As mentioned above, the term "sensor" refers to a material that can be heated when penetrated by a changing magnetic field. The aerosol generating device can generate a fluctuating magnetic field between 1 and 30 MHz, for example, between 2 and 10 MHz, or for example, between 5 and 7 MHz. The device can generate a fluctuating magnetic field with a field strength (H-field) between 1 kA / m and 5 kA / m, for example, between 2 kA / m and 3 kA / m, or for example, about 2.5 kA / m.

[0219] The sensor element can be formed from any material that can be inductively heated to a temperature sufficient to generate aerosols from the aerosol-generating matrix. For example, the sensor element may contain metals or carbon. The sensor element may contain or be composed of ferromagnetic materials, such as ferromagnetic alloys, ferritic iron, or ferromagnetic steel or stainless steel. Suitable materials may be aluminum or contain aluminum. The sensor element may be formed from 400 series stainless steel (e.g., grade 410, 420, or 430 stainless steel).

[0220] When positioned within an electromagnetic field with similar frequency and field strength, different materials will dissipate different amounts of energy. Therefore, parameters of the sensor element, such as material type, length, width, and thickness, can all be altered to provide the desired power dissipation within a known electromagnetic field.

[0221] When a sensing element is provided, the aerosol generating apparatus may include a sensing coil arranged to inductively heat the sensing element. The aerosol generating apparatus may include a sensing coil. Where the aerosol generating apparatus includes a device cavity, the sensing coil may at least partially define the device cavity. The sensing coil may be arranged coaxially to define the device cavity.

[0222] The aerosol generating device may also include a controller.

[0223] The aerosol generating device may also include a power source. The power source may be a DC power source. The power source may be a battery. The power source may be a nickel-metal hydride battery, a nickel-cadmium battery, or a lithium-based battery, such as a lithium-cobalt battery, a lithium-iron-phosphate battery, or a lithium polymer battery. The power source may also be another form of charge storage device, such as a capacitor. The power source may require recharging and may have a capacity that allows for storing sufficient energy for one or more user operations (e.g., one or more aerosol generating experiences).

[0224] The following is a non-exhaustive list of non-limiting examples. Any one or more features of these examples may be combined with any one or more features of another example, embodiment, or aspect described herein.

[0225] Example Ex1: An aerosol generating article for an aerosol generating apparatus, the aerosol generating article comprising:

[0226] Bag, the bag includes

[0227] The outer wall defines a matrix compartment, the matrix compartment including a plurality of aerosol generating elements.

[0228] The plurality of aerosol generating elements include a carrier medium and an aerosol generating matrix adsorbed in the carrier medium, wherein the aerosol generating matrix is ​​configured to generate an aerosol when the bag is heated, and

[0229] The outer wall is described as flexible and air-permeable.

[0230] Example Ex2: An aerosol-generated article according to any of the foregoing examples, wherein the outer wall comprises a material resistant to heat up to 280 degrees Celsius.

[0231] Example Ex3: An aerosol-generated article according to any of the foregoing examples, wherein the outer wall comprises a nonwoven fabric.

[0232] Example Ex4: An aerosol generating article according to any of the foregoing examples, wherein the plurality of aerosol generating elements are insoluble in water.

[0233] Example Ex5: An aerosol-generating article according to any of the preceding examples, wherein the bag further includes a pH adjuster.

[0234] Example Ex6: An aerosol-generated article according to any of the preceding examples, wherein the bag further includes a preservative.

[0235] Example Ex7: An aerosol generating article according to any of the foregoing examples, wherein the aerosol generating matrix includes an aerosol forming agent, optionally wherein the aerosol forming agent comprises a polyol.

[0236] Example Ex8: An aerosol-generating article according to any of the foregoing examples, wherein the aerosol-generating matrix includes a flavoring agent.

[0237] Example Ex9: An aerosol-generating article according to any of the foregoing examples, wherein the aerosol-generating matrix contains nicotine.

[0238] Example Ex10: An aerosol-generating article according to any of the foregoing examples, wherein the aerosol-generating matrix comprises one or both of tobacco and plant-derived components.

[0239] Example Ex11: An aerosol-generating article according to any of the foregoing examples, wherein the aerosol-generating matrix comprises a liquid or a gel.

[0240] Example Ex12: An aerosol-generated article according to any of the foregoing examples, wherein the carrier medium is porous.

[0241] Example Ex13: An aerosol-generated article according to any of the foregoing examples, wherein the carrier medium is substantially inert.

[0242] Example Ex14: An aerosol-generated article according to any of the foregoing examples, wherein the carrier medium comprises activated carbon.

[0243] Example Ex15: An aerosol-generated article according to any of the foregoing examples, wherein the matrix compartment further includes tobacco, optionally wherein the tobacco is provided as shredded tobacco.

[0244] Example Ex16: An aerosol generating article according to any of the preceding examples, wherein each of the plurality of aerosol generating elements has a substantially spherical shape.

[0245] Example Ex17: An aerosol generating article according to any of the foregoing examples, wherein the matrix compartment comprises 10 or more aerosol generating elements.

[0246] Example Ex18: An aerosol generating article according to any of the foregoing examples, wherein the matrix compartment comprises less than or equal to 50 aerosol generating elements.

[0247] Example Ex19: An aerosol generating article according to any of the foregoing examples, wherein the average mass of the plurality of aerosol generating elements is greater than or equal to 0.6 milligrams.

[0248] Example Ex20: An aerosol generating article according to any of the foregoing examples, wherein the average mass of the plurality of aerosol generating elements is less than or equal to 80 milligrams.

[0249] Example Ex21: An aerosol generating article according to any of the preceding examples, wherein the average surface area of ​​the plurality of aerosol generating elements is greater than or equal to 3 square millimeters.

[0250] Example Ex22: An aerosol generating article according to any of the foregoing examples, wherein the average surface area of ​​the plurality of aerosol generating elements is less than or equal to 80 square millimeters.

[0251] Example Ex23: An aerosol generating article according to any of the foregoing examples, wherein the average diameter of the plurality of aerosol generating elements is greater than or equal to 1 mm.

[0252] Example Ex24: An aerosol generating article according to any of the preceding examples, wherein the average diameter of the plurality of aerosol generating elements is less than or equal to 5 mm.

[0253] Example Ex25: An aerosol generating article according to any of the foregoing examples, wherein the minimum diameter of the plurality of aerosol generating elements is greater than or equal to 1 mm.

[0254] Example Ex26: An aerosol-generated article according to any of the preceding examples, wherein the outer wall includes at least one of a plurality of pores and a plurality of openings.

[0255] Example Ex27: An aerosol generating article according to Example Ex26, wherein the maximum width of at least one of the plurality of pores and the plurality of openings is less than the minimum diameter of the plurality of aerosol generating elements.

[0256] Example Ex28: An aerosol generating article according to any of the foregoing examples, wherein the maximum diameter of the plurality of aerosol generating elements is less than or equal to 5 mm.

[0257] Example Ex29: An aerosol generating article according to any of the foregoing examples, wherein the average volume of the plurality of aerosol generating elements is greater than or equal to 0.5 cubic millimeters.

[0258] Example Ex30: An aerosol generating article according to any of the foregoing examples, wherein the average volume of the plurality of aerosol generating elements is less than or equal to 70 cubic millimeters.

[0259] Example Ex31: An aerosol generating article according to any of the foregoing examples, wherein the total volume of the plurality of aerosol generating elements is greater than or equal to 40% of the total volume of the matrix compartment.

[0260] Example Ex32: An aerosol generating article according to any of the foregoing examples, wherein the total volume of the plurality of aerosol generating elements is less than or equal to 70% of the total volume of the matrix compartment.

[0261] Example Ex33: An aerosol-generated article according to any of the foregoing examples, wherein the length of the matrix compartment is greater than or equal to 3 mm.

[0262] Example Ex34: An aerosol-generated article according to any of the foregoing examples, wherein the length of the matrix compartment is less than or equal to 6 mm.

[0263] Example Ex35: An aerosol-generated article according to any of the preceding examples, wherein the width of the matrix compartment is greater than or equal to 5 mm.

[0264] Example Ex36: An aerosol-generated article according to any of the foregoing examples, wherein the width of the matrix compartment is less than or equal to 7 mm.

[0265] Example Ex37: An aerosol-generated article according to any of the foregoing examples, wherein the volume of the matrix compartment is greater than or equal to 60 cubic millimeters.

[0266] Example Ex38: An aerosol-generated article according to any of the foregoing examples, wherein the volume of the matrix compartment is less than or equal to 230 cubic millimeters.

[0267] Example Ex39: An aerosol generating article according to any of the preceding examples, wherein the total mass of the plurality of aerosol generating elements is greater than or equal to 20 milligrams.

[0268] Example Ex40: An aerosol generating article according to any of the foregoing examples, wherein the total mass of the plurality of aerosol generating elements is less than or equal to 120 milligrams.

[0269] Example Ex41: An aerosol generating article according to any of the foregoing examples, wherein the total volume of the plurality of aerosol generating elements is greater than or equal to 20 cubic millimeters.

[0270] Example Ex42: An aerosol generating article according to any of the foregoing examples, wherein the total volume of the plurality of aerosol generating elements is less than or equal to 105 cubic millimeters.

[0271] Example Ex43: An aerosol generating article according to any of the foregoing examples, wherein the total surface area of ​​the plurality of aerosol generating elements is greater than or equal to 120 square millimeters.

[0272] Example Ex44: An aerosol generating article according to any of the foregoing examples, wherein the total surface area of ​​the plurality of aerosol generating elements is less than or equal to 650 square millimeters.

[0273] Example Ex45: An aerosol generating article according to any of the foregoing examples, wherein the average density of the plurality of aerosol generating elements is greater than or equal to 1 mg / mm³.

[0274] Example Ex46: An aerosol generating article according to any of the foregoing examples, wherein the average density of the plurality of aerosol generating elements is less than or equal to 1.2 mg / mm³.

[0275] Example Ex47: An aerosol-generated article according to any of the foregoing examples, wherein the matrix compartment further includes at least one sensor element.

[0276] Example Ex48: An aerosol generating article according to any of the foregoing examples, wherein the plurality of aerosol generating elements includes a first aerosol generating element and a second aerosol generating element, the second aerosol generating element having one or both of a different composition and a different diameter than the first aerosol generating element.

[0277] Example Ex49: An aerosol generating article according to Example Ex48, wherein the matrix compartment is a single matrix compartment, and wherein the first aerosol generating element and the second aerosol generating element are located in the single matrix compartment.

[0278] Example Ex50: An aerosol generating article according to Example Ex48, wherein the matrix compartment includes a first matrix sub-compartment and a second matrix sub-compartment, wherein the first aerosol generating element is located in the first matrix sub-compartment and the second aerosol generating element is located in the second matrix sub-compartment.

[0279] Example Ex51: An aerosol-generated article according to Example Ex50, wherein the second matrix sub-compartment is arranged parallel to the first matrix sub-compartment along the longitudinal axis of the bag.

[0280] Example Ex52: An aerosol generating article according to Example Ex50 or Ex51, wherein the second matrix sub-compartment is separated from the first matrix sub-compartment by an intermediate wall, wherein the intermediate wall is configured to prevent contact between the first aerosol generating element and the second aerosol generating element.

[0281] Example Ex53: An aerosol-generated article according to Example Ex52, wherein the intermediate wall comprises substantially the same material as the outer wall of the bag.

[0282] Example Ex54: An aerosol generation system comprising:

[0283] Aerosol-generated articles according to any of the foregoing examples; and

[0284] An aerosol generating apparatus, the aerosol generating apparatus being configured to heat the aerosol-generated product.

[0285] Example Ex55: An aerosol generating system according to Example Ex54, wherein the aerosol generating device includes at least one of a resistance heating element and an induction heating element. Attached Figure Description

[0286] The invention will now be further described by way of example only, with reference to the accompanying drawings, in which:

[0287] Figure 1 This is a cross-sectional view of an aerosol-generated article according to a first embodiment of the present disclosure.

[0288] Figure 2 This is a cross-sectional view of an aerosol-generated article according to a second embodiment of the present disclosure.

[0289] Figure 3 This is a cross-sectional view of an aerosol-generated article according to a third embodiment of the present disclosure.

[0290] Figure 4 This is a cross-sectional view of an aerosol-generated article according to the fourth embodiment of this disclosure.

[0291] Figure 5 It includes Figure 1 A cross-sectional view of the aerosol generation system of the aerosol generation product and aerosol generation apparatus. Detailed Implementation

[0292] Figure 1 A schematic cross-sectional view of an aerosol-generating article 100 is shown. The aerosol-generating article 100 includes a bag 101.

[0293] The bag 101 includes an outer wall 102 defining a matrix compartment 103. The outer wall 102 is flexible and air-permeable.

[0294] The aerosol generating article 100 includes only one matrix compartment. The matrix compartment 103 includes a plurality of aerosol generating elements 104. The outer wall 102 is configured to hold the plurality of aerosol generating elements 104 within the matrix compartment 103.

[0295] Multiple aerosol generating elements 104 include a carrier medium and an aerosol generating matrix adsorbed in the carrier medium. The aerosol generating matrix is ​​configured to generate aerosols when the bag 101 is heated.

[0296] Figure 2 A schematic cross-sectional view of an aerosol-generating article 200 is shown. The aerosol-generating article 200 includes a bag 201.

[0297] The bag 201 includes an outer wall 202 defining a matrix compartment 203. The outer wall 202 is flexible and air-permeable.

[0298] The aerosol generating article 200 includes only one matrix compartment. The matrix compartment 203 includes multiple aerosol generating elements 204, 205. The multiple aerosol generating elements 204, 205 include multiple first aerosol generating elements 204 and multiple second aerosol generating elements 205.

[0299] The outer wall 202 is configured to hold a plurality of aerosol generating elements 204, 205 within a matrix compartment.

[0300] Multiple first aerosol generating elements 204 include a carrier medium and a first aerosol generating matrix adsorbed in the carrier medium. The first aerosol generating matrix is ​​configured to generate an aerosol when the bag 201 is heated.

[0301] Multiple second aerosol generating elements 205 include a carrier medium and a second aerosol generating matrix adsorbed in the carrier medium. The second aerosol generating matrix is ​​configured to generate aerosols when the bag 201 is heated.

[0302] The second aerosol generating matrix has a different composition than the first aerosol generating matrix.

[0303] Figure 3 A schematic cross-sectional view of an aerosol-generating article 300 is shown. The aerosol-generating article 300 includes a bag 301.

[0304] The bag 301 includes an outer wall 302 defining a matrix compartment 303. The outer wall 302 is flexible and air-permeable.

[0305] The matrix compartments 303 and 306 include a plurality of aerosol generating elements 304 and 305. The plurality of aerosol generating elements 304 and 305 include a plurality of first aerosol generating elements 304 and a plurality of second aerosol generating elements 305.

[0306] The outer wall 302 is configured to hold multiple aerosol generating elements 304, 305 within matrix compartments 303, 306.

[0307] The matrix compartments 303 and 306 are divided into two matrix sub-compartments. The matrix compartments 303 and 306 include a first matrix sub-compartment 303 and a second matrix sub-compartment 306. The second matrix sub-compartment 306 is arranged parallel to the first matrix sub-compartment 303 along the longitudinal axis of the bag 301 and in its longest dimension.

[0308] The first substrate compartment 303 includes a plurality of first aerosol generating elements 304. Each of the first aerosol generating elements 304 includes a first carrier medium and a first aerosol generating substrate adsorbed in the first carrier medium. The first aerosol generating substrate is configured to generate aerosols when the bag 301 is heated.

[0309] The second substrate compartment 306 includes a plurality of second aerosol generating elements 305. Each of the second aerosol generating elements 305 includes a second carrier medium and a second aerosol generating substrate adsorbed within the second carrier medium. The second aerosol generating substrate has a different composition than the first aerosol generating substrate. The second carrier medium has a different composition than the first carrier medium. The plurality of second aerosol generating elements 305 have a different average diameter than the plurality of first aerosol generating elements 304. The second aerosol generating substrate is configured to generate aerosols when the heating bag 301 is heated.

[0310] The second matrix sub-compartment 306 is separated from the first matrix sub-compartment 303 by an intermediate wall 307. The intermediate wall 307 is configured to prevent contact between the plurality of first aerosol generating elements 304 and the plurality of second aerosol generating elements 305. The intermediate wall 307 comprises the same material as the outer wall 302 of the bag 301.

[0311] Figure 4 A schematic cross-sectional view of an aerosol-generating article 400 is shown. The aerosol-generating article 400 includes a bag 401.

[0312] The bag 401 includes an outer wall 402 defining a matrix compartment 403. The outer wall 402 is flexible and air-permeable.

[0313] The aerosol generating article 400 includes only one matrix compartment. The matrix compartment 403 includes a plurality of aerosol generating elements 404. The outer wall 402 is configured to hold the plurality of aerosol generating elements 404 within the matrix compartment 403.

[0314] Multiple aerosol generating elements 404 include a carrier medium and an aerosol generating matrix adsorbed in the carrier medium. The aerosol generating matrix is ​​configured to generate aerosols when the bag 401 is heated.

[0315] The matrix compartment 403 also includes shredded tobacco 405. Multiple aerosol generating elements 404 are distributed within the shredded tobacco 405.

[0316] Figure 5 A schematic cross-sectional view of a portion of an aerosol generation system 500 is shown, the aerosol generation system including... Figure 1 It is part of the aerosol generating article 100 and the aerosol generating apparatus 501.

[0317] The aerosol generating apparatus 501 includes a heating element in the form of an external heating element 502. The external heating element 502 is located on the inner surface of the apparatus cavity 503. The external heating element 502 is a resistance heating element. The external heating element 502 has a substantially flat planar shape.

[0318] In use, the user inserts the aerosol generating article 100 into the device cavity 503 of the aerosol generating device 501, such that when the aerosol generating article 100 is received in the device cavity 503, the external heating element 502 comes into contact with the aerosol generating article 100. When the aerosol generating article 100 is received in the device cavity, the external heating element 502 applies a compressive force to the aerosol generating article 100, which compresses the bag 101 of the aerosol generating article 100.

[0319] The aerosol generating apparatus 501 also includes a power source (not shown) and electronics (not shown) that, when the aerosol generating article 100 is received in the apparatus cavity 503, allow actuation of an external heating element 502 to heat a plurality of aerosol generating elements 104 of the aerosol generating article 100. Aerosol is generated when the plurality of aerosol generating elements 104 of the aerosol generating article 100 are heated. This actuation can be manual or can occur automatically in response to a user drawing air at the downstream end of the aerosol generating apparatus 501 when the aerosol generating article 100 is inserted into the apparatus cavity 503.

[0320] Specifically, during use, the external heating element 502 heats the plurality of aerosol generating elements 104 of the aerosol generating article 100 received in the device cavity 503 to generate an aerosol. When the user inhales at the downstream end of the aerosol generating device 501, air is drawn into the device cavity 503 through the upstream air inlet 504. The air drawn into the device cavity 503 is then mixed with the aerosol generated by the plurality of aerosol generating elements 104 of the bag 101 by the external heating element 502. The aerosol is then drawn through the downstream air inlet 505. The aerosol is then drawn into the user's mouth through the downstream end of the aerosol generating system 500, for example through the downstream mouthpiece (not shown) of the aerosol generating device 501.

[0321] During use, the external heating element 502 is controlled to operate within a defined operating temperature range below the maximum operating temperature.

[0322] For the purposes of this specification and the appended claims, unless otherwise indicated, all figures representing quantities, quantities, percentages, etc., shall be understood to be modified by the term "about" in all cases. Thus, in this context, the figure A is understood to be A ± 10% of A. In this context, the figure A may be considered to include a value within the general standard error for the measurement of the property modified by the figure A. In certain instances used in the appended claims, the figure A may deviate from the percentages listed above, provided that the amount of deviation from A does not materially affect the essential and novel features of the claimed invention. Moreover, all ranges include the disclosed maximum and minimum points, and include any intermediate ranges that may or may not be specifically listed herein.

Claims

1. An aerosol generating article for use in an aerosol generating apparatus, the aerosol generating article comprising: Bag, the bag includes The outer wall defines a matrix compartment, the matrix compartment including a plurality of aerosol generating elements. The plurality of aerosol generating elements include a carrier medium and an aerosol generating matrix adsorbed in the carrier medium, wherein the aerosol generating matrix is ​​configured to generate an aerosol when the bag is heated, and The outer wall is described as flexible and air-permeable.

2. The aerosol generating article according to claim 1, wherein the outer wall comprises a nonwoven fabric.

3. The aerosol generating article according to claim 1 or claim 2, wherein the carrier medium comprises activated carbon.

4. The aerosol generating article according to any of the preceding claims, wherein the matrix compartment comprises 10 or more aerosol generating elements.

5. The aerosol generating article according to any of the preceding claims, wherein the matrix compartment comprises less than or equal to 50 aerosol generating elements.

6. The aerosol generating article according to any of the preceding claims, wherein the average mass of the plurality of aerosol generating elements is greater than or equal to 0.6 mg.

7. The aerosol generating article according to any of the preceding claims, wherein the average mass of the plurality of aerosol generating elements is less than or equal to 80 milligrams.

8. The aerosol generating article according to any of the preceding claims, wherein the average surface area of ​​the plurality of aerosol generating elements is greater than or equal to 3 square millimeters.

9. The aerosol generating article according to any of the preceding claims, wherein the average surface area of ​​the plurality of aerosol generating elements is less than or equal to 80 square millimeters.

10. The aerosol generating article according to any of the preceding claims, wherein the average diameter of the plurality of aerosol generating elements is greater than or equal to 1 mm.

11. The aerosol generating article according to any of the preceding claims, wherein the average diameter of the plurality of aerosol generating elements is less than or equal to 5 mm.

12. The aerosol-generating article according to any of the preceding claims, wherein the aerosol-generating matrix comprises one or both of tobacco and plant-derived components.

13. The aerosol generating article according to any of the preceding claims, wherein the aerosol generating matrix comprises a liquid or a gel.

14. The aerosol generating article according to any of the preceding claims, wherein the carrier medium is porous.

15. The aerosol-generating article according to any of the preceding claims, wherein the carrier medium is substantially inert.

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