Method for manufacturing a gel-containing rod for an electrically heated smoking article.

Abstract

To provide a gelatinous aerosol generating base cartridge capable of inserting into an electrically heated smoking article and an electrically heated smoking device containing thereof, and, an aerosol generation device therefor.SOLUTION: A gelatinous aerosol generating substrate containing glycerin and gelatin exists in a gel-like, semi-solid or solid state within a first temperature range including room temperature, changes to a liquid state within a second temperature range including 70°C, and vaporizes into an aerosol within a temperature range of 150 to 400°C. By heating the substrate in the liquid state in the second temperature range to allow the gel container to absorb moisture and then cooling the moisture-absorbed body to the first temperature range, the gel-like aerosol generating substrate obtains a rod of the gel container that exists in a gel form in the gel container within the first temperature range.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a gel-like aerosol generating substrate cartridge that can be inserted into an electrically heated smoking article, an electrically heated smoking article containing the same, and an aerosol generating device and system for the same. More specifically, the present invention relates to a gel-like aerosol generating substrate cartridge that can be inserted into an electrically heated smoking article containing a tobacco medium capable of generating an aerosol by a heating method other than combustion, and which can further generate an aerosol by heating, an electrically heated smoking article containing the same, and an aerosol generating device and system for the same. [Background technology]

[0002] In recent years, there has been increasing demand for alternative methods that can overcome the shortcomings of conventional rolled cigarettes. For example, there is growing demand for methods that generate aerosols by heating the aerosol-generating substances within the rolled cigarette, rather than by burning the cigarette itself.

[0003] Generally, in the case of slurry-like leaf sheets, which are the main raw material for tobacco media, the tensile strength is weak, making them difficult to manufacture, and the tobacco media also contains a large amount of humectants, resulting in weak physical properties. Furthermore, tobacco media containing liquids such as glycerin are sensitive to the humidity of the surrounding environment due to their hydrophilicity, making it difficult to control the environment during the manufacturing process. There are also limits to the amount of liquid that can be contained in the tobacco media.

[0004] In addition to cigarettes containing tobacco as a medium, a hybrid type has also been proposed in which a liquid is stored in a separate cartomizer to generate an aerosol, which the user inhales through the cigarette when they smoke it. However, there are difficulties in managing the liquid contained in the cartomizer (such as expiration dates and deterioration), and condensation may form in the airflow path through which the aerosol generated from the cartomizer travels, potentially causing contamination.

[0005] This creates a need to provide a liquid substance within disposable electric heated smoking devices, from which an aerosol can be obtained. [Overview of the project] [Problems that the invention aims to solve]

[0006] The object of the present invention is to provide a gel-like aerosol generating substrate cartridge that can be inserted into an electrically heated smoking article, an electrically heated smoking article containing the same, and an aerosol generating device for the same, which can solve the problems of the prior art. [Means for solving the problem]

[0007] Therefore, the present invention provides a gel-like aerosol generating substrate cartridge that can be inserted into an electrically heated smoking article, comprising: a gel-like aerosol generating substrate containing glycerin and gelatin that exists in a gel-like, semi-solid, or solid state in a first temperature range including room temperature, changes to a liquid state in a second temperature range including 70°C, and vaporizes into an aerosol in a temperature range of 150 to 400°C; a gel container that houses the gel-like aerosol generating substrate; and wrapping paper that wraps the sides of the gel container in a cylindrical shape having a length of 7 to 20 mm and a diameter of 5 to 8 mm.

[0008] Furthermore, the present invention provides an electrically heated smoking article comprising a filter, a gel-like aerosol generating substrate cartridge provided upstream of the filter, and a tobacco body containing tobacco leaves provided upstream of the filter and either upstream or downstream of the gel-like aerosol generating substrate cartridge, wherein the filter, gel-like aerosol generating substrate cartridge, and tobacco body are wrapped in wrapping paper to form a rolled cigarette.

[0009] Furthermore, the present invention provides an aerosol generator for an electrically heated smoking article as described above, which is of a size that can be gripped and carried, and includes a cavity into which a smoking article provided within the device can be inserted, at least one of a resistance heating type heater and an induction heating type heater provided within the device that can heat the inside or outside of a gel-like aerosol generating substrate cartridge and a tobacco body of the smoking article, a rechargeable battery provided within the device that acts as a DC power source, and a control unit provided within the device that controls the heater by being supplied with DC power from the battery.

[0010] Furthermore, the present invention provides an aerosol generating system comprising an electric heated smoking article as described above, a cavity into which the smoking article can be inserted, at least one of a resistance heating type heater and an induction heating type heater capable of heating the inside or outside of the gel-like aerosol generating base material cartridge and tobacco body of the smoking article, a rechargeable battery that acts as a DC power source, and a control unit that controls the heater by receiving DC power from the battery, wherein the electric heated smoking article is inserted into the cavity and the gel-like aerosol generating base material cartridge and tobacco body of the electric heated smoking article are heated electrically to generate an aerosol within the smoking article. [Effects of the Invention]

[0011] According to the present invention, by providing a gel-like aerosol generating substrate cartridge that can be inserted into an electrically heated smoking article, and an electrically heated smoking article containing the same, the problems of the prior art that arise when a user inhales both an aerosol derived from the gel-like aerosol generating substrate and an aerosol derived from the tobacco substrate can be solved. [Brief explanation of the drawing]

[0012] [Figure 1] A conceptual diagram shows a partially exploded perspective view and a cross-sectional view of an electrically heated smoking article according to a preferred embodiment of the present invention. [Figure 2] Figure 1 conceptually illustrates the components of a smoking item and the wrapping paper surrounding it. [Figure 3] This is a conceptual diagram showing the process by which a gel-containing rod is manufactured to obtain the gel-containing body shown in Figure 2. [Figure 4] Figure 3 conceptually illustrates a cutting process for cutting a gel-like aerosol generating substrate cartridge to manufacture a gel-like aerosol generating substrate cartridge according to the present invention from the gel-containing rod shown. Figures 5 to 12 are conceptual diagrams of various embodiments of an aerosol generating device for generating aerosols from an electrically heated smoking article according to the present invention. [Figure 5] The first embodiment schematically shows a cross-sectional view in which an electrically heated smoking article is applied to an aerosol generator that combines a pipe-shaped resistance heater and an intrusion-type resistance heater. [Figure 6] The second embodiment schematically shows a cross-sectional view in which an electrically heated smoking article is applied to an aerosol generator having a pipe-shaped resistance heating heater consisting of a single piece. [Figure 7] The third embodiment schematically shows a cross-sectional view in which an electrically heated smoking article is applied to an aerosol generator having a pipe-shaped resistance heating heater consisting of two pieces. [Figure 8] The fourth embodiment combines a pipe-shaped resistance heater and an intrusion-type resistance heater, but differs from the first embodiment in that an electrically heated smoking article is applied to the aerosol generator, as schematically shown in the cross-sectional view. [Figure 9] The fifth embodiment schematically shows a cross-sectional view in which an electrically heated smoking article is applied to an aerosol generator having a heat pipe made of susceptor material and a hit blade made of susceptor material that generates heat by induction heating. [Figure 10] The sixth embodiment schematically shows a cross-sectional view in which an electrically heated smoking article is applied to an aerosol generator that combines a heat pipe made of a susceptor material that generates heat by induction heating with a pipe-shaped resistance heating heater. [Figure 11]Figure 1 schematically shows a cross-sectional view of an aerosol generating device having a susceptor material heat pipe made of a single piece that generates heat by induction heating, to which an electrically heated smoking article is applied according to a seventh embodiment. [Figure 12] Figure 2 schematically shows a cross-sectional view of an aerosol generating device having a susceptor material heat pipe made of two pieces that generates heat by induction heating, to which an electrically heated smoking article is applied according to an eighth embodiment. MODE FOR CARRYING OUT THE INVENTION

[0013] The present invention provides a gel aerosol generating substrate cartridge that can be inserted into an electrically heated smoking article, which exists in a gel, semi-solid or solid state in a first temperature range including room temperature, changes to a liquid state in a second temperature range including 70°C, and vaporizes into an aerosol in a temperature range of 150 to 400°C, and includes a gel aerosol generating substrate containing glycerin and gelatin, a gel container for containing the gel aerosol generating substrate, and a wrapping paper that wraps the side surface of the gel container in a cylinder shape having a length of 7 to 20 mm and a diameter of 5 to 8 mm.

[0014] Here, the gel aerosol generating substrate may further contain one or more of water, agar, thickeners, starch powder, celluloses, carboxymethyl ethers, natural food flavors or fruit extracts.

[0015] In addition, in the gel aerosol generating substrate, the content of glycerin is preferably 50% by weight or more.

[0016] Here, the gel aerosol generating substrate contains a liquid composition composed of 80 to 100% glycerin VG and 0 to 20% glycerin PG as weight%, but contains a mixture of 60 to 80% of the liquid composition and 20 to 40% of water at a volume ratio of 100 ml of the mixture, and 1 to 6 g of gelatin by weight, and may selectively contain a flavoring agent added to 10% or less of the total weight of the liquid composition.

[0017] Here, the liquid composition can be contained in the gel container in an amount of 70 to 120 mg.

[0018] Furthermore, it is desirable that the gel-like aerosol generating substrate is introduced into the gel container in a liquid state within the second temperature range, and exists in a gel-like, semi-solid, or solid state within the first temperature range.

[0019] Here, the gel container is made by folding or winding a 2-3 mm thick strip of melamine foam resin into a cylindrical shape, or by processing melamine foam resin into a cylindrical shape, and selectively has a weight of 0.01 to 0.013 mg / mm³ per unit volume. 3 It is possible.

[0020] Here, the gel-containing material is made by folding or winding pulp or a pulp-containing fabric into a cylindrical shape, or by processing it into a cylindrical shape, and selectively has a weight of 0.25 to 0.4 mg / mm³ per unit volume. 3 It is possible.

[0021] The gel containment is made from woven or nonwoven cotton fabric, either folded or rolled into a cylindrical shape, or processed into a cylindrical shape, with a selective weight of 0.2 to 0.35 mg / mm³ per unit volume. 3 It is possible.

[0022] The gel containment is made from woven or nonwoven bamboo fiber fabric, either folded or wound into a cylindrical shape, or processed into a cylindrical shape, with a selective weight of 0.15 to 0.25 mg / mm³ per unit volume. 3 It is possible.

[0023] A liquid composition consisting of 80 to 100% glycerin VG and 0 to 20% glycerin PG contains 0.13 to 0.32 mg / mm³ per unit volume of the gel container. 3 It is desirable for this amount to be present in the gel containment.

[0024] The wrapping paper is formed by attaching aluminum foil to paper, and can be wrapped in a cylindrical shape so that the aluminum foil is in contact with the gel container.

[0025] Furthermore, the present invention provides an electrically heated smoking article comprising a filter, a gel-like aerosol generating substrate cartridge provided upstream of the filter, and a tobacco body containing tobacco leaves provided upstream of the filter and either upstream or downstream of the gel-like aerosol generating substrate cartridge, wherein the filter, gel-like aerosol generating substrate cartridge, and tobacco body are wrapped in wrapping paper to form a rolled cigarette.

[0026] Here, it is desirable to provide a tubular body directly upstream of the filter.

[0027] Furthermore, the present invention provides an aerosol generator for an electrically heated smoking article as described above, which is of a size that can be gripped and carried, and includes a cavity into which a smoking article provided within the device can be inserted, at least one of a resistance heating type heater and an induction heating type heater provided within the device that can heat the inside or outside of a gel-like aerosol generating substrate cartridge and a tobacco body of the smoking article, a rechargeable battery provided within the device that acts as a DC power source, and a control unit provided within the device that controls the heater by being supplied with DC power from the battery.

[0028] Here, the resistance heating heater is either a pipe heater that heats the outside of the smoking item or an intrusion heater that is inserted into the smoking item and heats the inside. The pipe heater heats the gel-like aerosol generating substrate cartridge and / or the tobacco, while the intrusion heater can be inserted into the tobacco to heat the inside of the tobacco.

[0029] The device further includes a temperature sensor provided within the apparatus for sensing the heater temperature, and the control unit can control the resistance heating heater based on the value sensed from the temperature sensor.

[0030] Here, the induction heating heater is either a heat pipe made of susceptor material that heats the outside of the smoking article, or a hit blade made of susceptor material that is inserted into the smoking article and heats the inside, with the heat pipe heating the gel-like aerosol generating substrate cartridge and / or the tobacco body, and the hit blade being inserted into the tobacco body and heating the inside of the tobacco body.

[0031] The apparatus further includes a temperature acquisition unit provided within the device to obtain the temperature of an induction heating heater, and the control unit can control the current applied to the excitation coil by the input of the temperature acquisition unit.

[0032] Furthermore, the present invention provides an aerosol generating device comprising an electrically heated smoking article as described above, a cavity into which the smoking article can be inserted, at least one of a resistance heating type heater and an induction heating type heater capable of heating the inside or outside of the gel-like aerosol generating base material cartridge and tobacco body of the smoking article, a rechargeable battery that acts as a DC power source, and a control unit that controls the heater by being supplied with DC power from the battery, wherein the electrically heated smoking article is inserted into the cavity and the gel-like aerosol generating base material cartridge and tobacco body of the electrically heated smoking article are heated electrically to generate an aerosol within the smoking article.

[0033] The present invention is capable of various transformations and has many embodiments, but specific embodiments are illustrated in the figures and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear when you refer to the embodiments described in detail below, along with the figures. However, the present invention is not limited to the embodiments disclosed below and can be embodied in a variety of forms.

[0034] In the following embodiments, a singular expression includes multiple expressions unless explicitly specified in the context.

[0035] In the following embodiments, terms such as "includes" or "has" mean that the features or components described in the specification exist, and do not preclude the possibility of adding one or more different features or components.

[0036] In the following embodiments, "upstream" and "downstream" are terms used to indicate the relative positions of segments, etc., constituting the smoking item, with reference to the direction in which the user inhales air using the smoking item. The smoking item includes an upstream end (i.e., the part where air enters) and a downstream end (i.e., the part where air exits) opposite to it. When using the smoking item, the user holds the downstream end of the smoking item in their mouth, allowing them to inhale air that is inhaled through the upstream end of the smoking item, passes through the smoking item, and exits at the downstream end. The downstream end is located downstream of the upstream end, while the term "end" can also be written as "terminal end."

[0037] In the diagrams, the size of components and other elements may be exaggerated or reduced for the sake of explanation. For example, the size and thickness of each component shown in the diagrams are arbitrarily shown for the sake of explanation and are not necessarily limited to those shown in the present invention.

[0038] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings, so that they can be easily implemented by a person with ordinary skill in the art to which the present invention pertains. However, the present invention is not limited to the embodiments described herein and can be embodied in a variety of different forms.

[0039] In the following description, a gel-like aerosol generating substrate cartridge, which can be inserted into an electrically heated smoking article capable of generating an aerosol by heating according to a preferred embodiment of the present invention, and an electrically heated smoking article containing such a gel-like aerosol generating substrate cartridge will be described with reference to the attached drawings. For the sake of convenience of explanation, the gel-like aerosol generating substrate cartridge contained therein will be described while each component of the electrically heated smoking article is described. Here, an electrically heated smoking article is a type of smoking article in which an aerosol is generated from the smoking article by heating it by an electric resistance heating method or induction heating method, without combustion, and the user inhales this aerosol. Such a smoking article contains an amount of aerosol generating substrate and / or tobacco leaves appropriate for the number of inhalations equivalent to one conventional cigarette, and after a predetermined amount of aerosol has been generated, it no longer generates aerosol and is disposable by the user.

[0040] The electrically heated smoking article according to the present invention includes, as described later, a gel-like aerosol generating substrate containing ordinary tobacco leaves and a liquid composition such as glycerin as an aerosol generating substrate. An electrically heated smoking article 50 according to a preferred embodiment of the present invention has a structure in which a tobacco body 58 containing tobacco leaves as an aerosol generating substrate is located at the upstream end, a gel-like aerosol generating substrate cartridge 56 containing a liquid composition as another aerosol generating substrate located directly downstream thereof, a paper tube 54 providing an aerosol transport passage located directly downstream thereof, and a filter 52 acting as a mouthpiece are laminated together, and these are wrapped with wrapping paper 60. The relative positions of the gel-like aerosol generating substrate cartridge 56 made of liquid composition and the tobacco body 58 made of tobacco leaves can be reversed.

[0041] The gel-like aerosol generating substrate cartridge according to the present invention includes a gel-like aerosol generating substrate containing glycerin and gelatin, which exists in a gel-like, semi-solid, or solid state (hereinafter simply referred to as "gel-like") in a first temperature range including room temperature (for example, a temperature range of 50°C), changes to a liquid or liquid state in a second temperature range including 70°C (for example, a temperature range of 50 to 100°C), and vaporizes into an aerosol in a temperature range of 150 to 400°C; a gel container 56a in which the gel-like aerosol generating substrate is contained; and wrapping paper 61 that wraps the sides of the gel container 56a in a cylindrical shape having a length of 7 to 20 mm and a diameter of 5 to 8 mm. The cylindrical shape, having a length of 7 to 20 mm and a diameter of 5 to 8 mm, conforms to the size of currently used standard cigarettes or electrically heated smoking articles. When a gel-like aerosol generating substrate cartridge having such specifications is inserted into an electrically heated smoking article 50 and wrapped with separate wrapping paper 60, from the user's perspective, there is no difference from a standard cigarette or electrically heated smoking article.

[0042] Since the tobacco leaves 58a cannot maintain their shape on their own, they are wrapped in a separate wrapping paper 62 to form the tobacco body 58, which is prepared to be the same size (diameter) as the gel-like aerosol generating substrate cartridge 56. By wrapping the aforementioned filter 52, paper tube 54, gel-like aerosol generating substrate cartridge 56 and tobacco body 58 with wrapping paper 60, an electrically heated smoking article 50 as shown in Figure 1 is obtained.

[0043] Specifically, the gel-like aerosol generating substrate is a mixture of glycerin and gelatin. For example, glycerin PG (Proplylene Glycol) or VG (Vegetable Glycerin), or a mixture of PG and VG, is heated and stirred for 30 minutes to reduce its viscosity. Then, 10 to 50% by weight of gelatin and / or water, which are gelling additives, is added and stirred until the additive dissolves in the glycerin, resulting in a mixture of glycerin and gelatin and / or water. The mixture maintains a gel-like, semi-solid, or solid state in a first temperature range including room temperature (a temperature range below approximately 50°C), changes to a liquid state when heated in a second temperature range including 70°C (a temperature range of 50 to 100°C), and generates an aerosol when further heated to approximately 150°C or higher.

[0044] As described above, the gel-like aerosol generating substrate may further contain one or more of the following: water, agar, thickener, starch powder, cellulose, carboxymethyl ethers, natural food flavoring, or fruit extract. Furthermore, it is desirable that the glycerin content in the gel-like aerosol generating substrate be 50% by weight or more. When water is included, the time required to soften the gelatin and form the mixture of the gel-like aerosol generating substrate can be reduced. The mixture may also further contain agar, which also works to favor the formation of the mixture of the gel-like aerosol generating substrate. In addition, the mixture of the gel-like aerosol generating substrate may contain thickeners, starch powder, cellulose, and carboxymethyl ethers as additives. Furthermore, the mixture of the gel-like aerosol generating substrate may further contain natural food flavoring or fruit extract. In this case, it becomes possible to add a variety of flavors to the user through the generated aerosol. In all cases, it is desirable that the glycerin content in the mixture of gel-like aerosol generating substrates be 50% by weight or more, as this minimizes the burnt taste from the generated aerosol. The mixture of gel-like aerosol generating substrates may or may not contain nicotine.

[0045] Here, the gel-like aerosol generating substrate contains a liquid composition consisting of 80 to 100% glycerin VG and 0 to 20% glycerin PG by weight, but also contains 1 to 6 g of gelatin per 100 ml of a mixture of 60 to 80% liquid composition and 20 to 40% water by volume, and a flavoring agent selectively added in an amount of 10% or less relative to the total weight of the liquid composition. Here, it is desirable that the liquid composition is contained in the gel container in an amount of 70 to 120 mg. Such numerical ranges indicate the amount of liquid composition that can provide an aerosol derived from the liquid composition when a user inhales an aerosol from a tobacco body 58 made of tobacco leaves provided in a single electrically heated smoking article. If the liquid composition in the gel container 56a is less than the lower limit (70 mg), the amount of aerosol derived from the liquid composition may become insufficient during the process in which the user inhales the aerosol derived from the tobacco body 58 made of tobacco leaves provided to the electrically heated smoking article. Therefore, the liquid composition contained in the gel aerosol generating base material cartridge 56 must be equal to or greater than the lower limit (70 mg). If the liquid composition in the gel container 56a exceeds the upper limit (120 mg), the volume of the gel aerosol generating base material mixture becomes too large, making it difficult for the gel container in the gel aerosol generating base material cartridge 56 having the above specifications to retain the liquid composition. Therefore, the liquid composition contained in the gel aerosol generating base material cartridge must be equal to or less than the upper limit (120 mg). A desirable range is 80 to 110 mg, and a more desirable range is 90 to 105 mg.

[0046] Another feature of the present invention is that, as will be described later, the gel aerosol generating base material can exist in a liquid state during the manufacturing process, but even when liquefied, the gel container 56a in the gel aerosol generating base material cartridge having the above-mentioned specifications has a moisture absorption rate sufficient to maintain the liquid composition having the above-mentioned formation range in the gel aerosol generating base material cartridge. That is, the liquid composition is maintained while being absorbed by the gel container 56a in the gel aerosol generating base material cartridge and does not flow out to the outside of the gel aerosol generating base material cartridge. Here, moisture absorption means that the gel container is absorbed by the liquid composition but does not flow out to the outside. As will be described later, the filter 52 - paper tube 54 - gel aerosol generating base material cartridge 56 - tobacco body 58 is wrapped with wrapping paper 60 to form the electrically heated smoking article 50, and the gel aerosol generating base material cartridge 56 comes into direct contact with the tobacco body 58, the paper tube 54, and the filter 52 without separate members upstream or downstream. However, the liquid composition absorbed by the gel container 56a in the gel aerosol generating base material cartridge is only absorbed and stored in the gel container and does not flow out to the tobacco body 58, the paper tube 54, or the filter 52. For this reason, the liquid composition is desirably absorbed by the gel container in an amount of 0.13 to 0.32 mg / mm 3 of the volume of the gel container. The reason for this numerical limitation is similar to the reason for the numerical limitation of the amount of the liquid composition absorbed by the gel container 56a of the present invention. That is, when it is less than the lower limit value (0.13 mg / mm 3 ), the amount of the liquid composition absorbed by the gel container 56a becomes insufficient. Therefore, in the process of the user inhaling the aerosol derived from the tobacco cut leaf provided in the electrically heated smoking article, the aerosol derived from the gel aerosol generating base material may become insufficient. Therefore, the liquid composition absorbed by the gel aerosol generating base material cartridge must be not less than the lower limit value (0.13 mg / mm 3 ). The upper limit value (0.32 mg / mm 3If the liquid composition exceeds the specified amount, the gel containment will have difficulty maintaining the liquid composition in the gel containment within the gel aerosol generating substrate cartridge having the aforementioned specifications, and there is a risk that the liquid composition may leak out of the gel aerosol generating substrate cartridge 56.

[0047] The "gel-like aerosol generating substrate cartridge" used in the present invention is a cartridge 56 having a gel-like aerosol generating substrate that exists in a gel state at room temperature, liquefies in a temperature range of 50 to 100°C, including, for example, 70°C, and vaporizes into an aerosol in a temperature range of, for example, approximately 150 to 350°C upon additional heating. For example, the gel-like aerosol generating substrate is a gel-like mixture of a liquid composition such as glycerin VG (selectively containing glycerin PG) that exists in a gel state in a first temperature range including room temperature and changes to a liquid state in a second temperature range including 70°C, gelatin, and water. When heated by an electric induction or resistance heating method using a separate aerosol generating device, the gel-like aerosol generating substrate changes to a liquid state, and the liquid composition generates an aerosol upon additional heating. According to one preferred embodiment of the present invention, the liquid composition is 100% glycerin VG by weight, and according to another preferred embodiment, the liquid composition is 80% glycerin VG and 20% glycerin PG by weight.

[0048] In another preferred embodiment, the liquid composition described above is heated and stirred for 30 minutes to reduce its viscosity. Gelatin and / or water, which are gelling additives, are then added and stirred until the additives are dissolved in glycerin to obtain a gelling mixture of glycerin and gelatin and / or water. In this mixture, the mixture contains 1 to 6 g of gelatin per 100 ml, with a volume ratio of 60 to 80% liquid composition and 20 to 40% water.

[0049] In another preferred embodiment, 1 g, 1.5 g, and 2 g of gelatin were each placed in 10 ml of cold water to soften the gelatin, and then 50 ml of a liquid composition containing 80% glycerin VG and 20% glycerin PG (by weight) was mixed in to dissolve the gelatin. The mixture was then left at room temperature for 6 hours or more. Gelation proceeded well even when left at room temperature, and the gelation progressed more effectively as the amount of gelatin increased. With gelatin between 1 g and 1.5 g, viscosity increased and a weak level of gelation occurred.

[0050] In another preferred embodiment, 5 g of gelatin was softened in 50 ml of cold water for 30 minutes, and 100 ml of a liquid composition containing 80% glycerin VG and 20% glycerin PG by weight was added. The mixture was then stirred and heated at 75°C for 90 minutes to obtain a gel-like aerosol generating substrate.

[0051] The gel-like aerosol generating substrate maintains a gel-like state in a first temperature range including room temperature (below approximately 50°C), and when heated to a second temperature range including 70°C (50°C to 100°C), it changes to a liquid state and exists in that state. Further heating generates an aerosol at approximately 120°C or higher. As described later, in order to inject the gel-like aerosol generating substrate into the gel container 56a, the manufacturing process involves heating the gel-like aerosol generating substrate in the second temperature range to liquefy it, and then spraying or injecting the liquid into the gel container 56a using a needle or the like to allow the liquid to be absorbed by the gel container 56a. Thereafter, by maintaining the liquid at a low temperature, for example, approximately 4°C for 5 to 10 minutes, or at room temperature for 1 hour or more, the liquid absorbed by the gel container 56a changes to a gel-like state and is dispersed in the form of fine particles on the surface, pores, and network within the gel container 56a.

[0052] On the other hand, the gel container has sufficient hygroscopicity to absorb the liquid composition of the liquefied aerosol generating material, so that the liquid composition does not leak out of the gel container. As mentioned above, the gel-like aerosol generating substrate mainly consists of glycerin and gelatin, but it is desirable to also include water. When water is included, the time required to soften the gelatin and form the gel-like aerosol generating substrate can be reduced. The gel-like aerosol generating substrate can also further contain agar, which also works to favor the formation of a gel. In addition, the gel-like aerosol generating substrate can contain thickeners, starch powder, celluloses, and carboxymethyl ethers as additives. Furthermore, the gel-like aerosol generating substrate can further contain natural food flavors or fruit extracts. In this case, it becomes possible to add a variety of flavors to the user through the generated aerosol. In any case, it is desirable that the glycerin content in the gel-like aerosol generating substrate be 50% by weight or more, as this minimizes the burnt taste from the generated aerosol.

[0053] As described above, the liquid composition comprises 80 to 100% glycerin VG and 0 to 20% glycerin PG by weight, and further comprises a flavoring agent added in an amount of 10% or less of the total weight of the liquid composition thus obtained. According to one preferred embodiment, the present invention uses a liquid composition comprising 100% glycerin VG by weight. According to another preferred embodiment, the present invention uses a liquid composition comprising 80% glycerin VG and 20% glycerin PG by weight. According to yet another preferred embodiment, the present invention further comprises a flavoring agent added in an amount of 10% or less of the total weight of the liquid composition thus obtained. For example, flavorings may include licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, caraway, cognac, jasmine, chamomile, menthol, cassia, ylang-ylang, sage, spearmint, ginger, coriander, or coffee. Furthermore, the liquid composition may or may not contain nicotine.

[0054] According to the present invention, gel containers 56a made of various materials can be applied. In Figures 1 and 2, the gel container 56a is shown being wound up, but this is merely a representation for convenience, and the configuration of the gel container 56a is not limited to this. Various types of gel containers 56a can be considered, and basically, the gel container 56a is pressed into one side of the pipe structure 40 shown in Figure 3 by folding or winding, and then, while being extruded on the other side in a shape with a slightly narrower cross-section, it is wrapped with wrapping paper 61 to obtain a gel container rod 57. Before being introduced into the pipe structure 40, the gel container 56a absorbs moisture from a liquefied gel-like aerosol generating substrate through a liquid injection part such as a needle, and as the gel container 56a passes through the pipe structure 40, it becomes a state in which it has absorbed or contains the liquefied gel-like aerosol generating substrate, and is immediately wrapped with wrapping paper 61 on the other side of the pipe structure 40, and cut to an appropriate length, for example about 80 mm or 140 mm, to form a gel container rod 57. In other words, the gel-like aerosol generating substrate mixture is heated in a second temperature range including 70°C to become liquid, and is injected into the gel container 56a through an injection part such as a needle, where it is absorbed by the gel container 56a. Before cutting into the gel container rod 57, an appropriate cooling process can be performed, and since the gel container 56a has sufficient hygroscopic capacity for the liquid gel-like aerosol generating substrate, by maintaining it at room temperature for an appropriate time after cutting, for example 1 hour, or at a low temperature, for example 4°C for 5 to 10 minutes, the liquid gel-like aerosol generating substrate introduced into the gel container 56a will gel, preventing and minimizing the leakage of the liquid composition from the gel container 56a during subsequent operations (such as cutting into cartridges or wrapping with smoking articles). In other words, the gel-containing rod 57 can be provided in a state in which a gel-containing body 56a containing a gel-like aerosol generating substrate in a liquid state is wrapped with wrapping paper 61, and by providing a suitable cooling structure for the pipe structure, the gel-containing rod 57 can also be wrapped with wrapping paper 61 while the gel-like aerosol generating substrate remains in a gel state inside the gel-containing body 56a.In contrast, the gel-containing rod 57, as described above, can gel and hold a mixture containing an aerosol-generating substrate introduced into the gel-containing rod simply by maintaining it in a first temperature range including room temperature for a predetermined time, and can be cut to a size that can be inserted into individual smoking articles 50, as will be described later.

[0055] This configuration is a process that has become common in existing cigarette manufacturing lines and has the advantage of allowing the use of existing cigarette manufacturing processes and equipment. In other words, the process described above can be applied directly to the manufacture of existing filters, paper tubes, and tobacco leaves, and cartridge 56 can be obtained using such current equipment and processes.

[0056] The gel-like aerosol generating substrate is introduced into the gel container in a liquid state at a second temperature range, for example, 50-100°C, including 70°C. Therefore, it is easily absorbed into the gel container, as described later, and exists in a gel-like state within the gel container at a first temperature range, for example, below 50°C, including room temperature, in the spaces between the surfaces, pores, and networks present in the gel container. Consequently, when the gel-like aerosol generating substrate cartridge is maintained at a first temperature range, including room temperature, the possibility of the liquid composition contained in the gel-like aerosol generating substrate flowing out or leaking from the gel-like aerosol cartridge can be eliminated or minimized.

[0057] According to one preferred embodiment, the gel container according to the present invention is made in a cylindrical shape by introducing a 2 to 3 mm thick strip of melamine foam resin into the aforementioned pipe structure 40 by folding or winding. According to another preferred embodiment, the gel container according to the present invention is made by processing melamine foam resin into a cylindrical shape, introducing it into the aforementioned pipe structure 40, and extruding it. The gel container made of melamine foam resin more preferably has a concentration of 0.01 to 0.013 mg / mm³. 3It has a weight per unit volume. According to the results of experiments conducted on an electrically heated smoking article containing a gel-like aerosol generating substrate cartridge corresponding to 100 mg of liquid composition, the liquid composition remained absorbed and maintained within the gel container without any leakage during the experiment, and a much richer aerosol was observed than in existing heated tobacco products. A sufficient amount of aerosol derived from a larger amount of liquid composition was observed compared to existing hybrid types or when the liquid composition was absorbed.

[0058] In other preferred embodiments, the gel container according to the present invention is made in a cylindrical shape by introducing pulp or a pulp-containing fabric into the aforementioned pipe structure 40 by folding or winding, or by processing it into a cylindrical shape and introducing it into the aforementioned pipe structure 40 and extruding it. The gel container made from pulp or a pulp-containing fabric is more preferably 0.25 to 0.4 mg / mm 3 It has a weight per unit volume. According to the results of experiments conducted on an electrically heated smoking article containing a gel-like aerosol generating substrate cartridge corresponding to 100 mg of liquid composition, the liquid composition remained absorbed and maintained within the gel container without any leakage during the experiment, and a much richer aerosol was observed than with existing heated tobacco products. A sufficient amount of aerosol derived from a larger amount of liquid composition was observed compared to existing hybrid types or when the liquid composition was absorbed.

[0059] In other preferred embodiments, the gel container according to the present invention is made by introducing a woven or nonwoven cotton fabric into the aforementioned pipe structure 40 by folding or winding it to form a cylinder, or by processing it into a cylinder shape and introducing it into the aforementioned pipe structure 40 to extrude it. The gel container made of woven or nonwoven cotton fabric is more preferably 0.2 to 0.35 mg / mm³. 3It has a weight per unit volume. According to the results of experiments conducted on an electrically heated smoking article containing a gel-like aerosol generating substrate cartridge corresponding to 100 mg of liquid composition, the liquid composition remained absorbed and maintained within the gel container without any leakage during the experiment, and a much richer aerosol was observed than with existing heated tobacco products. A sufficient amount of aerosol derived from a larger amount of liquid composition was observed compared to existing hybrid types or when the liquid composition was absorbed.

[0060] In other preferred embodiments, the gel containment according to the present invention is made by introducing a woven or nonwoven fabric of bamboo fibers into the aforementioned pipe structure 40 by folding or winding to form a cylinder shape, or by processing it into a cylinder shape and introducing it into the aforementioned pipe structure 40 and extruding it. The gel containment made of woven or nonwoven fabric of bamboo fibers is more preferably 0.15 to 0.25 mg / mm³. 3 It has a weight per unit volume. According to the results of experiments conducted on an electrically heated smoking article containing a gel-like aerosol generating substrate cartridge corresponding to 100 mg of liquid composition, the liquid composition remained absorbed and maintained within the gel container without any leakage during the experiment, and a much richer aerosol was observed than with existing heated tobacco products. A sufficient amount of aerosol derived from a larger amount of liquid composition was observed compared to existing hybrid types or when the liquid composition was absorbed.

[0061] According to one preferred embodiment, the wrapping paper 61 forming the gel-like aerosol generating substrate cartridge 56 can be provided as a laminate formed by attaching aluminum foil to paper, and is wrapped in a cylindrical shape so that the aluminum foil contacts the gel container 56a. This ensures that the aluminum foil does not leak out, or minimizes, the liquid gel-like aerosol generating substrate contained in the gel container 56a through the sides of the gel-like aerosol generating substrate cartridge 56. That is, as can be seen from the configuration of the gel-like aerosol generating substrate cartridge shown in Figures 1 and 2, the gel container 56a is wrapped with a separate wrapping paper 61 before being wrapped with wrapping paper 60 for forming the smoking article, and it is desirable that the wrapping paper 61 be provided in a form in which aluminum foil is attached to paper, and is wrapped in a cylindrical shape so that the aluminum foil contacts the gel container 56a.

[0062] The tobacco body 58 may contain solid materials based on tobacco raw materials such as flat tobacco leaves, shredded tobacco, and reconstituted tobacco. In one embodiment, the tobacco body 58 can be filled with wrinkled flat leaf sheets. The flat leaf sheets can be wound substantially transversely around a cylinder axis, folded, compressed, or shrunk to form wrinkles. The porosity can be determined by adjusting the spacing of the grooves in the wrinkled flat leaf sheets.

[0063] In other embodiments, the tobacco body 58 can be filled with tobacco leaves or the like. Here, the tobacco leaves or the like can be produced by cutting a tobacco sheet (or a slurry plate-shaped leaf sheet) into small pieces. The tobacco body 58 can also be formed by arranging multiple tobacco strands in the same direction (parallel) or randomly. Specifically, the tobacco body 58 can be formed by arranging multiple tobacco strands together to create multiple longitudinal channels through which aerosols can pass. In this case, the longitudinal channels can be uniform or non-uniform depending on the size and arrangement of the tobacco strands.

[0064] The tobacco material 58 may further contain at least one of ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. The tobacco material may also further contain glycerin and propylene glycol.

[0065] Furthermore, the tobacco body 58 may contain other additives such as flavoring agents and / or organic acids. For example, flavoring agents may include licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, caraway, cognac, jasmine, chamomile, menthol, cassia, ylang-ylang, sage, spearmint, ginger, coriander, or coffee. On the other hand, the tobacco medium containment sections 11a and 11b may also partially contain glycerin or propylene glycol.

[0066] Depending on the circumstances, an electrically heated smoking article can also be manufactured by having a liquid composition containing nicotine without a tobacco body made of tobacco leaves, and by sequentially laminating a tube and a filter onto a gel-like aerosol generating substrate cartridge and wrapping it with wrapping paper.

[0067] The electrically heated smoking article 50 according to the present invention may include a paper tube 54 that provides a passage for the aerosol, as shown in Figures 1 and 2. The tube may also have PLA inserted to lower the temperature of the aerosol and prevent the user from being burned when inhaling the aerosol. The paper tube 54 may also be wrapped with separate wrapping paper (not shown). In this case, paper, i.e., paper, is sufficient as the wrapping paper for the paper tube 54.

[0068] The filter 52, which acts as a mouthpiece, allows aerosols to pass through while preventing liquid inflow, as shown in Figures 1 and 2. As previously mentioned, the gel-like aerosol generating substrate maintained in the gel container 56a remains gel-like within the gel container 56a in a first temperature range including room temperature. However, in abnormal environments, such as when the surrounding environment in which the smoking article is stored reaches a second temperature range, or when excessive external force acts only on the gel-like aerosol generating substrate cartridge 56, some of the liquid composition may leak out. In this case, the filter performs the role of preventing liquid inflow (a paper tube functions similarly). The filter can be made from pulp and can be manufactured in cylindrical or tubular form. On the other hand, the filter can contain flavoring agents to improve user satisfaction. Flavorings may include, for example, licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, caraway, cognac, jasmine, chamomile, menthol, cassia, ylang-ylang, sage, spearmint, ginger, coriander, or coffee.

[0069] Essentially, the aforementioned gel-like aerosol generating substrate cartridge 56 is manufactured using the same process and equipment as described above for incorporating flavoring agents into the filter 52. Since existing processes and equipment are used as is, there are no difficulties in ensuring mass production and quality control.

[0070] The electrically heated smoking article 50 is usually wrapped with multiple layers of wrapping paper 60, 61, and 62. However, it can be wrapped with multiple layers of wrapping paper, such as a first wrapping paper 61 that wraps the portion where the gel-like aerosol generating substrate cartridge is located, a second wrapping paper 62 that wraps the gel-like aerosol generating substrate cartridge and the tobacco body made of tobacco leaves together downstream or upstream thereafter, a third wrapping paper (not shown) that wraps the tube together with the second wrapping paper, and a fourth wrapping paper 60 that wraps the entire portion of the electrically heated smoking article. In this way, an electrically heated smoking article can be obtained by wrapping at various stages, but depending on the case, the process of forming the gel-like aerosol generating substrate cartridge may be performed separately or via a continuous line.

[0071] In contrast, to shorten manufacturing time and reduce manufacturing costs, it is also possible to wrap all parts of an electrically heated smoking item in a single layer of wrapping material made of different materials or of different thicknesses within the outermost wrapping paper that covers the entire item.

[0072] As shown in Figures 1 and 2, in one embodiment of the present invention, a gel-like aerosol generating substrate cartridge 56 contains a gel container 56a containing a gel-like aerosol generating substrate containing a liquid composition, which is wrapped by wrapping paper 61 that acts as a housing. Furthermore, a paper tube 54 and a filter 52 are installed sequentially at the downstream end of the gel-like aerosol generating substrate cartridge 56. The filter and tube are wrapped together with the gel-like aerosol generating substrate cartridge by wrapping paper 60.

[0073] The gel-like aerosol generating substrate in the gel-like aerosol generating substrate cartridge 56 is maintained in a gel-like state within the gel containment in the first temperature range, and the liquid composition contained in the gel-like aerosol generating substrate does not leak out of the gel-like aerosol generating substrate cartridge 56, but vaporizes upon heating to generate an aerosol.

[0074] The wrapping papers 60, 61, and 62 are preferably made of materials that do not deform upon contact with high heat and liquids, or that do not generate components harmful to the human body. Alternatively, the wrapping papers can be made of thin metal films or thin metal sheets (foils), and as mentioned above, they may be in the form of wrapping papers made of paper material with thin metal films or thin metal sheets superimposed on them, or laminated together. According to a preferred embodiment of the present invention, the wrapping paper 61, which serves as the housing for the gel-like aerosol generating substrate cartridge 56, is made of laminated paper and aluminum foil, and the aluminum foil is in contact with the gel container 56a, preventing the gel-like aerosol generating substrate from changing to a liquid state and flowing out to the side of the gel-like aerosol generating substrate cartridge 56 when the gel container 56a is placed in a second temperature range during the manufacturing process or storage.

[0075] The filter 52 provided downstream of the gel-like aerosol generating substrate cartridge has a hollow section for airflow formation, but a filter without a hollow section may also be used. The filter consists of at least one segment and may include, for example, at least one of a tube filter, a cooling structure, and a recess filter. The tube filter has a hollow section inside. The tube filter and recess filter are made of cellulose acetate, and the tube acting as a cooling structure may be made of pure polylactic acid or a combination of different biodegradable polymers and polylactic acid.

[0076] More specifically, filter 52 can be manufactured from materials such as acetic acid, paper, and PP, and the filter wrapping paper can be classified into general paper, porous paper, perforated paper, and NWA (Non-Wrapped Acetate). Furthermore, the form of the filter can be classified into monofilters consisting of one segment and composite filters (double, triple, etc.) consisting of multiple segments. The filter can be manufactured from acetate tow, plasticizer, activated carbon, X-DNA, and wrapping paper. Acetate tow is described as an aggregate of continuous filaments of cellulose acetate and plays a crucial role in determining the suction resistance, which is the most important characteristic of the filter. The properties of acetate tow are determined by denier.

[0077] Plasticizers soften and pliable cellulose acetate fibers, forming bonds at the contact points between fibers and making the fiber bundles stronger. Triacetin is used as a plasticizer for cigarette filters.

[0078] Activated carbon, a type of adsorbent, is a substance primarily composed of carbon and can be classified according to its particle size and properties. Raw materials used for activated carbon include plant-based materials such as wood, wood flour, and fruit shells (coconut shells, bamboo, and peach seeds).

[0079] X-DNA is a functional particle extracted from seaweed and then concentrated. Compared to activated carbon, which is mainly used in cigarette filters, it does not affect the taste of tobacco and has superior ability to remove various carcinogens.

[0080] The function of wrapping paper is to maintain the shape of the filter floc during filter manufacturing. During the manufacturing of wrapping paper, it must satisfy certain physical properties such as porosity, tensile strength, elongation, thickness, and tackiness.

[0081] For example, the length of the gel-like aerosol generating substrate cartridge 56 may be 14.0 mm, the length of the filter 52 or tube 54 may be 2.5 mm each, and the length of the tobacco body 58 containing the tobacco leaves may be 9.0 mm. Alternatively, as an example, the filter 52 may be 10 mm, the paper tube 54 16 mm, the gel-like aerosol generating substrate cartridge 56 10 mm, and the tobacco body 58 12 mm.

[0082] The relative lengths of the filter 52, paper tube 54, gel-like aerosol generating substrate cartridge 56, and tobacco body 58, and the relative arrangement of the gel-like aerosol generating substrate cartridge 56 and tobacco body 58, are related to the temperature of the aerosol generated by the electric heated smoking article using the aerosol generator 100 described later, during the process in which the user inhales the aerosol. The temperature of the aerosol generated in the gel-like aerosol generating substrate cartridge 56 and the temperature of the aerosol generated in the tobacco body 58 are different, and by increasing the length of the paper tube 54, the high-temperature aerosol can be further cooled. Therefore, considering the temperature of the aerosol generated in the gel-like aerosol generating substrate cartridge 56 and tobacco body 58, and the relative arrangement of the gel-like aerosol generating substrate cartridge 56 and tobacco body 58, the relative lengths and arrangements of these components may change based on the amount of liquid composition and tobacco leaves which depend on the volume of the gel-like aerosol generating substrate cartridge 56 and tobacco body 58, and the heating method of the aerosol generator described later. It is not difficult for a person with ordinary skill in the art to manufacture an electrically heated smoking article in a size similar to that of electrically heated smoking articles currently on the market, while satisfying the various conditions mentioned above.

[0083] As described above, according to a preferred embodiment for manufacturing the gel-like aerosol generating substrate cartridge 56 shown in Figure 3, first, the gel-like aerosol generating substrate is heated in a second temperature range to create a liquid. Then, before the gel container 56a, which is formed in a cylindrical shape by the pipe structure 40, is introduced into the pipe structure 40, the liquid is sufficiently sprayed or injected through a liquid injection part such as a spray device or needle, and the liquid is supplied into the gel container 56a. The gel container 56a then contains the liquid or becomes hygroscopic as it passes through the pipe structure 40. Subsequently, the hygroscopic gel container is wrapped with wrapping paper made of, for example, paper (or paper laminated with aluminum foil), cut to the required length (for example, 140 mm, 100 mm, or 80 mm), and forms a gel container rod 57. As described later, the gel-containing rod 57 can be cut into gel-like aerosol-generating substrate cartridges 56 of desired lengths (for example, 14 mm, 10 mm, or 8 mm), and then packed (wrapped) together with segments of other electric heated smoking articles (tubes, filters, and tobacco) to manufacture an electric heated smoking article 50 for aerosol generation. As mentioned above, the liquid introduced into the gel-containing body 56a gels while being maintained within a first temperature range when passing through the pipe structure 40, when stored after being cut into the gel-containing rod 57, and when stored after being cut into the gel-like aerosol-generating substrate cartridge 56, and is dispersed in the form of fine particles on the surface, pores, and network within the gel-containing body 56a.

[0084] Figure 4 schematically shows a cutting step for cutting a gel-containing rod 57 to manufacture a gel-like aerosol generating substrate cartridge 56 according to another preferred embodiment of the present invention. As described above, a gel-containing rod 57 having, for example, a length of 140 mm, 100 mm, or 80 mm is fed into a groove of an index table 70 and moved onto a conveyor belt 90 by the rotation of the index table. At this time, a rotating blade 80 is positioned along the path along the index table 70, and the rotating blade cuts the gel-containing rod 57 into 10 gel-like aerosol generating substrate cartridges 56 of desired lengths, for example, 14 mm, 10 mm, or 80 mm. The rotating blades 80 are arranged in groups of 10 at equal intervals and can cut a 140 mm gel-containing rod 57 into 10 14 mm gel-like aerosol generating substrate cartridges 56, or cut a 100 mm gel-containing rod 57 into 10 10 mm gel-like aerosol generating substrate cartridges 56, or cut an 80 mm gel-containing rod 57 into 10 8 mm gel-like aerosol generating substrate cartridges 56. As mentioned above, the process and equipment described above utilize the same equipment used in existing cigarette manufacturing when flavoring agents are added to filters, so there is no difficulty in satisfying mass production and quality control requirements.

[0085] According to a preferred embodiment of the present invention, a filter 52 acting as a mouthpiece is located at the downstream end of a gel-like aerosol generating substrate cartridge 56, and a tobacco body 58 containing tobacco leaves is located at the upstream end of the gel-like aerosol generating substrate cartridge 56. These segments (filter, gel-like aerosol generating substrate cartridge, and tobacco body) can be packed together to produce an electrically heated smoking article for aerosol generation. As described above, a tube 54 providing a passage for aerosol movement can be located between the filter 52 and the gel-like aerosol generating substrate cartridge 56 as needed. These segments, the filter, tube, liquid cartridge, and tobacco body, are arranged side by side, and these can be packed together to obtain an electrically heated smoking article 50 for aerosol generation. In an actual production line, these can be arranged in sets of 10 or more and cut into a large number of electrically heated smoking articles after wrapping.

[0086] In any case, the liquid composition, which is the aerosol generating substrate contained in the gel-like aerosol generating substrate cartridge 56, gels and is dispersed in fine particles on the surface, pores, network, etc. of the gel containment within the gel-like aerosol generating substrate cartridge. Even when liquefied, it is absorbed by the gel containment 56a and does not leak out of the gel-like aerosol generating substrate cartridge. However, it is conceivable that the liquid composition may leak out due to high temperature or physical pressure applied to the gel-like aerosol generating substrate cartridge during the manufacturing process of the electric heated smoking article or after the completion of the electric heated smoking article, or that it may vaporize into an aerosol and escape to the outside. First, according to a preferred embodiment of the present invention, the tobacco is located upstream of the gel-like aerosol generating substrate cartridge and the filter is located downstream of the gel-like aerosol generating substrate cartridge. Therefore, even if high temperature or external physical pressure is applied to the gel-like aerosol generating substrate cartridge, the possibility of the liquid composition leaking out through the filter or tobacco is low. The gel-like aerosol generating substrate liquefies in a second temperature range including 70°C, and the liquid composition begins to generate aerosols at approximately 120°C or higher. Therefore, by controlling the process in the wrapping or manufacturing process of the gel-like aerosol generating substrate cartridge to a first temperature range of 100°C or lower, preferably less than 50°C, the loss of the liquid composition during the manufacturing process can be prevented. If a temperature higher than the vaporization start temperature of the liquid composition is unavoidably required during the manufacturing process, the amount of liquid composition that may be lost during the process can be estimated, and the estimated loss amount can be added to the required amount to further control the liquid composition by allowing it to absorb moisture.

[0087] The following describes an embodiment of an aerosol generator 100 capable of generating an aerosol by heating an electrically heated smoking article 50 according to the present invention. The aerosol generator 100 described below is a portable and handheld aerosol generator that has a cavity into which an electrically heated smoking article 50, which contains an aerosol-forming substrate such as a liquid composition or tobacco leaves within the smoking article, and is wrapped in wrapping paper in the form of an existing rolled cigarette, can be inserted. The aerosol-forming substrate of the smoking article inserted into the cavity is heated by a heater provided in the aerosol generator to form an aerosol. The heater can be provided by a resistance heating method or an induction heating method, as described later, but as an example, it is heated to a temperature of 100 to 400°C to heat the aerosol-forming substrate provided in the electrically heated smoking article 50 inserted into the cavity of the aerosol generator and generate an aerosol. In a preferred example, the target temperature may be in the range of 200 to 350°C, and in a more preferred example, the target temperature may be in the range of 250 to 320°C (with 280°C as an example). Depending on the circumstances, the target temperature may be in the range of 150 to 250°C (with 180°C as an example), which may vary depending on whether the target of aerosol generation is a liquid composition (such as glycerin), tobacco, or tobacco that has absorbed moisture from a liquid composition such as glycerin. In any case, since the aerosol generated in the electrically heated smoking article 50 is inhaled into the user's mouth via the tube 54 and filter 52, even considering that it will be cooled during the inhalation process, if the temperature of the generated aerosol becomes excessively high, it may cause discomfort to the user or pose a risk of burns, and it may be difficult to take several puffs due to the generation of excessive aerosol. Therefore, the target temperature of the heating element must be determined in advance, taking these points into consideration. Furthermore, for the reasons mentioned above, the upper limit of the target temperature of the heating element is limited as described above.

[0088] According to a preferred embodiment, the temperature at which the generated aerosol exits through tube 54 and filter 52 can be measured as the mouth end temperature. However, to avoid causing discomfort to the user, the aerosol temperature must be below 50°C, preferably 45°C or lower. A desirable aerosol mouth end temperature is in the range of 25 to 45°C, and a more desirable aerosol mouth end temperature is in the range of 30 to 40°C.

[0089] The aerosol generator 100 includes a rechargeable battery 110 provided within the device and acting as a DC power source, and a control unit 120 that controls the output from the battery 110. Figure 5 shows a conceptual diagram of such an aerosol generator 100 together with an electrically heated smoking article 50, and schematically shows a cross-sectional view for the purpose of illustrating the heating method in each embodiment. For the sake of explanation, the electrically heated smoking article 50, which is the smoking article, will be described based on a configuration in which a filter 52 - tube 54 - gel-like aerosol generating substrate cartridge 56 - tobacco body 58 are arranged in that order and wrapped with wrapping paper 60. As has already been explained, in each case, the relative positions of the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 may change relative to each other.

[0090] Furthermore, the following description is provided for illustrative purposes only, and the scope of the present invention is not limited thereto. Anyone with ordinary skill in the art to which the present invention pertains will readily understand that an aerosol generating system within the scope of the present invention can be constructed by removing or adding parts to the configuration of the aerosol generating device illustrated below, or by combining it with other devices.

[0091] Figure 5, as mentioned above, is a schematic diagram showing a cross-section of an aerosol generator 100 according to the first embodiment of the present invention, along with a conceptual diagram of an example of an aerosol generation system to which the present invention can be applied.

[0092] The aerosol generation system includes an aerosol generator 100 and an electrically heated smoking article 50. Here, the electrically heated smoking article 50, which is the smoking article, is constructed by wrapping a filter 52, a paper tube 54, a gel-like aerosol generation base material cartridge 56, and a tobacco body 58 with wrapping paper 60, as described above, and is inserted into the hollow space provided to the aerosol generator 100.

[0093] The aerosol generator 100 includes an electrically resistive pipe heater 130b for generating an aerosol by heating a liquid composition absorbed by moisture in a gel-like aerosol generating substrate cartridge 56, and an electrically resistive immersive heater 130a for generating an aerosol by heating tobacco leaves or the like in a tobacco body 58. Together, it includes a battery 110 for supplying power to these heaters 130a and 130b, and a control unit 120 configured to control the power supply from the battery 110 to the heaters 130a and 130b.

[0094] The immersive heater 130a according to the first embodiment described above may be in the shape of a blade or a needle with a heater pattern printed on the outside. In any case, a temperature sensor pattern is also provided along with the heater pattern so that the temperature on the surface of the immersive heater 130a is sensed and the power supply to the immersive heater 130a can be controlled based on the sensed value. As in the first embodiment, when the immersive heater is inserted into the tobacco body 58 and heats the tobacco body 58 to form an aerosol within the tobacco body 58, it is useful for generating an aerosol quickly because it heats in contact with the tobacco body 58. As described above, the gel-like aerosol generating substrate cartridge 56 is formed by folding or winding materials that are physically connected to each other, so if the immersive heater 130a is not inserted correctly, or if it is inserted but the gel containment is not properly separated when it is removed, it is desirable that the immersive heater 130a be inserted only up to the tobacco body 58.

[0095] The pipe heater 130b according to the first embodiment described above is also a pipe on which heater wires or a planar heating element pattern is printed or provided on the outside. Like the intrusion heater 130a, the pipe heater 130b is also provided with a temperature sensor pattern so that the temperature is sensed and the power supply to the pipe heater 130b can be controlled according to the sensed value. The pipe heater 130b heats the gel-like aerosol generating substrate cartridge 56 of the electric heated smoking article 50 on its side surface, thereby heating the aerosol generating substrate that exists in a gel-like state within the gel-like aerosol generating substrate cartridge and generating an aerosol.

[0096] The heater can heat the aerosol generating substrate to a temperature range of 150-350°C to generate an aerosol. The aerosol generated by the user's inhalation passes through the paper tube 54 and filter 52 and is inhaled through the user's mouth. For example, the immersive heater 130a can heat the tobacco leaves of the tobacco body 58 to a temperature range of 150-250°C to generate an aerosol derived from the tobacco leaves, and the pipe heater 130b can heat the gel container of the gel-like aerosol generating substrate cartridge 56 to a temperature range of 250-350°C to generate an aerosol derived from the liquid composition of the gel container. The above temperature conditions can be opposite to each other. Even when heated to the above temperature range, the wrapping paper may not burn, or only a portion of the wrapping paper may char.

[0097] Of course, the heater patterns, sensing units, and control units of each heater 130a and 130b are electrically connected, and the battery and control unit are also electrically connected.

[0098] Figure 6 is a schematic diagram showing a cross-section of an aerosol generation system according to a second embodiment of the present invention.

[0099] The configuration of the electrically heated smoking article 50 is the same as in the first embodiment.

[0100] The aerosol generator 100 according to the second embodiment has a single resistance heating pipe heater 132 corresponding to a gel-like aerosol generating substrate cartridge 56 and a tobacco body 58. Like the pipe heater 130b according to the first embodiment described above, it is a pipe with heater wires or a planar heating element pattern printed or provided on the outside. The pipe heater 132 according to the second embodiment is also provided with a temperature sensor pattern to sense the temperature, and the power supply to the pipe heater 132 can be controlled according to the sensed value. The pipe heater 132 not only heats the gel-like aerosol generating substrate cartridge 56 on the side of the gel-like aerosol generating substrate cartridge to generate aerosol from the aerosol generating substrate that exists in a gel-like state within the gel-like aerosol generating substrate cartridge, but also heats the tobacco body 58 on the side of the tobacco body 58 of the electric heated smoking article 50 to generate aerosol from the tobacco leaves etc. provided within the tobacco body 58. In the second embodiment, the pipe heater 132 heats the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 at essentially the same temperature. The target temperature can be in the range of 150 to 350°C, and this temperature can be adjusted by the temperature sensing value. Even when heated within the aforementioned temperature range, the wrapping paper will not burn, although a portion of the wrapping paper may char.

[0101] For electrically heated smoking articles used in such devices, the amount of aerosol generated from the liquid composition and the amount of aerosol generated from the tobacco leaves can be appropriately adjusted by adjusting the relative positions of the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, or by adjusting their relative volumes (or heights).

[0102] Of course, the heater pattern, sensing unit, and control unit 120 of the pipe heater 132 are electrically connected to each other, and the battery and control unit are also electrically connected. It is preferable that the pipe heater 132 surrounds only the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, and not surrounds the paper tube 54 or the filter 52.

[0103] Figure 7 is a schematic diagram showing a cross-section of an aerosol generation system according to a third embodiment of the present invention.

[0104] The configuration of the electrically heated smoking article 50 is the same as in the embodiment described above.

[0105] The aerosol generator 100 according to the third embodiment has a resistance heating type pipe heater 132a corresponding to a gel-like aerosol generating substrate cartridge 56 and a resistance heating type pipe heater 132b corresponding to a tobacco body 58. Like the pipe heaters in the embodiments described above, the pipes have heater wires or planar heating element patterns printed or provided on the outside. The pipe heaters 132a and 132b in the third embodiment are also provided with temperature sensor patterns so that the temperature is sensed, and the power supply to the pipe heaters 132a and 132b can be controlled according to the sensed value. The pipe heater 132a heats the gel-like aerosol generating substrate cartridge 56 of the electric heated smoking article 50 on its side to generate an aerosol from the aerosol generating substrate present in gel form within the gel-like aerosol generating substrate cartridge, while the pipe heater 132b heats the tobacco body 58 of the electric heated smoking article 50 on its side to generate an aerosol from the tobacco leaves provided within the tobacco body 58. In the third embodiment, the pipe heaters 132a and 132b can heat the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 at different temperatures. The target temperature can be in the range of 150 to 350°C, and the temperature can be adjusted by a temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and filter 52 and into the user's mouth. For example, pipe heater 132b can heat the tobacco leaves of tobacco body 58 in a temperature range of 150 to 250°C to generate an aerosol derived from the tobacco leaves, and pipe heater 132a can heat the gel container of gel-like aerosol generating substrate cartridge 56 in a temperature range of 250 to 350°C to generate an aerosol derived from the liquid composition of the gel container. The above temperature conditions can be opposite to each other. Even when heated in the above temperature ranges, the wrapping paper may not burn, or only a portion of the wrapping paper may char.

[0106] When the configuration of the third embodiment is adopted, without the problems of the intrusion type heater (such as the problem of residue generated from the electric heated smoking article after use and the problem of not being easily inserted into the gel-like aerosol generating substrate cartridge), it becomes possible to appropriately generate aerosols from the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 in an electric heated smoking article having the configuration shown in the figure, as well as in an electric heated smoking article where the relative positions of the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 have changed, and at the same time, to set and control the temperatures of the pipe heaters 132a and 132b to match the optimal aerosol generation temperature of each aerosol-forming substrate.

[0107] Of course, the heater patterns, sensing unit, and control unit 120 of the pipe heaters 132a and 132b are electrically connected, and the battery and control unit are also electrically connected. It is desirable that the pipe heaters 132a and 132b surround only the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, and not surround the paper tube 54 or the filter 52.

[0108] Figure 8 is a schematic diagram showing a cross-section of an aerosol generation system according to a fourth embodiment of the present invention.

[0109] The configuration of the electrically heated smoking article 50 is the same as in the embodiment described above.

[0110] The aerosol generator 100 according to the fourth embodiment includes a gel-like aerosol generating substrate cartridge 56 and a single resistance heating pipe heater 134b having a height corresponding to the tobacco body 58, and an inlet heater 134a that can be inserted into the tobacco body 58.

[0111] The pipe heater 134b, like the pipe heater described above, has heater wires and a planar heating element pattern printed or provided on the outside, and a temperature sensor pattern is also provided to sense the temperature, allowing power supply to the pipe heater 134b to be controlled by the sensed value. The pipe heater 134b not only heats the gel-like aerosol generating substrate cartridge 56 of the electric heated smoking article 50 on its side to generate an aerosol from the aerosol generating substrate present in gel form within the gel-like aerosol generating substrate cartridge, but also heats the tobacco body 58 of the electric heated smoking article 50 on its side to generate an aerosol from the tobacco leaves provided within the tobacco body 58. The pipe heater 134b of the fourth embodiment also heats the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 at essentially the same temperature. However, unlike the second embodiment, the fourth embodiment further provides an intrusion heater 134a having the configuration described above that can be inserted into the tobacco body 58. Such a configuration means that an additional heating source can be provided to the tobacco body 58, which can be effectively addressed by an aerosol generating substrate provided within the electrically heated smoking article. In any case, the target temperature can be in the range of 150 to 350°C, and the temperature can be adjusted by a temperature sensing value. For example, the pipe heater 134b can heat the aerosol generating substrate and the tobacco leaves of the tobacco body 58, which are present in a gel-like state in the gel containment of the gel-like aerosol generating substrate cartridge 56, in the temperature range of 150 to 250°C to generate aerosols derived from them, and furthermore, the immersive heater 134a can heat the tobacco leaves of the tobacco body 58 in the temperature range of 250 to 350°C to generate aerosols derived from the tobacco leaves. The above temperature conditions can be opposite to each other. Even when heated in the above temperature range, the wrapping paper may not burn, or only a portion of the wrapping paper may char.

[0112] Of course, the heater patterns, sensing unit, and control unit 120 of the immersion heater 134a and the pipe heater 134b are electrically connected, and the battery and control unit are also electrically connected. It is preferable that the pipe heater 134b surrounds only the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, and not the paper tube 54 or the filter 52. For the reasons mentioned above, it is preferable that the immersion heater 134a is inserted only into the tobacco body 58.

[0113] The fifth to eighth embodiments of the present invention shown in Figures 9 to 12 are examples of aerosol generation systems that apply induction heating heaters. The electrical components used for induction heating include, as components for induction heating, cylindrical excitation coils 136a, 136c, 138b, 140a, and 140b that are wound several times, and susceptors (magnetized heating elements) that react with the excitation coils 136a, 136c, 138b, 140a, and 140b and are inductively heated by eddy current losses. Here, the susceptor is a thin, hollow cylindrical plate that defines a cavity into which an electrically heated smoking article 50, which is a smoking article, can be inserted, provided within the excitation coils 136a, 136c, 138b, 140a, 140b, so as to be surrounded by the excitation coils 136a, 136c, 138b, 140a, 140b within the device, and is heated to a temperature of 400°C or less by induction heating due to eddy current losses in reaction with the excitation coils 136a, 136c, 138b, 140a, 140b. The susceptor temperature can be heated to over 1000°C depending on the magnitude of the alternating current applied to the excitation coils 136a, 136c, 138b, 140a, and 140b, but as described above, the present invention heats the susceptor, which acts as a heating element, to a temperature of 400°C or less. The temperature of the heat pipes 136, 136d, 138a, 142a, and 142b can be sensed by temperature sensors that are in physical contact with the surface of the heat pipes 136, 136d, 138a, 142a, and 142b, or the temperature of the susceptor can be calculated from the changes in current and voltage from current sensors and voltage sensors that measure the change in the current and voltage heating the susceptor due to the change in inductance or reactance value that changes with the temperature change of the susceptor acting as a heat pipe 136, 136d, 138a, 142a, and 142b.

[0114] For induction heating, the control unit receives a DC power supply from the battery 110 and supplies an AC current at the resonant frequency or an AC current with a frequency different from the resonant frequency to the excitation coil. The control unit controls the AC current applied to the excitation coil based on the temperature change of the susceptor, thereby causing the susceptor to heat up, maintain, and change to a desired temperature.

[0115] Figure 9 is a schematic diagram showing a cross-section of an aerosol generation system according to the fifth embodiment of the present invention.

[0116] The configuration of the electrically heated smoking article 50 is the same as in the embodiment described above.

[0117] The aerosol generator 100 according to the fifth embodiment has an induction heating type heat pipe 136 corresponding to a gel-like aerosol generating substrate cartridge and an induction heating type hit blade 136b corresponding to a tobacco body 58. The entire heat pipe 136 and hit blade 136b are made of susceptors and are heated by induction heating. The heat pipe 136 heats the gel-like aerosol generating substrate cartridge 56 of the electric heated smoking article 50 on its side surface to generate an aerosol from the aerosol generating substrate present in gel form within the gel-like aerosol generating substrate cartridge, and the hit blade 136b heats the tobacco leaves, etc., inside the tobacco body 58 of the electric heated smoking article 50 to generate an aerosol.

[0118] Since the heat pipe 136 and the hit blade 136b, which act as susceptors, are provided separately, it is possible to adjust their material, thickness, etc., to achieve the desired heating temperature conditions.

[0119] The temperature conditions controlled by the system may be the same as or similar to those described above. That is, the heat pipe 136 and hit blade 136b of the fifth embodiment can heat the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 at different temperatures. The target temperature may be in the range of 150 to 300°C, and the temperature can be adjusted by a temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and filter 52 via the user's mouth. For example, the hit blade 136b can heat the tobacco leaves of the tobacco body 58 in the temperature range of 150 to 200°C to generate an aerosol derived from the tobacco leaves, and the heat pipe 136 can heat the gel container of the gel-like aerosol generating substrate cartridge 56 in the temperature range of 250 to 300°C to generate an aerosol derived from the liquid composition of the gel container. The above temperature conditions may be opposite to each other. Even when heated in the above temperature ranges, the wrapping paper may not burn, and only a portion of the wrapping paper may char.

[0120] Of course, the excitation coil 136a, the sensing unit and the control unit 120 are electrically connected to each other, and the battery and the control unit are also electrically connected. It is desirable that the heat pipe 136 surrounds only the gel-like aerosol generating substrate cartridge 56 and not surround the paper tube 54 or the filter 52. Also, it is desirable that the hit blade 136b is inserted only up to the tobacco body 58, like an electrical resistance type intrusion heater.

[0121] Figure 10 is a schematic diagram showing a cross-section of an aerosol generation system according to the sixth embodiment of the present invention.

[0122] The configuration of the electrically heated smoking article 50 is the same as in the embodiment described above.

[0123] The aerosol generator 100 according to the sixth embodiment is an example of combining an induction heating type heat pipe 136d corresponding to a gel-like aerosol generating substrate cartridge and a resistance heating type pipe heater 136e corresponding to a tobacco body 58.

[0124] The heat pipe 136d, acting as a susceptor, heats the gel-like aerosol generating substrate cartridge 56 of the electrically heated smoking article 50 on its side, thereby generating an aerosol from the aerosol generating substrate present in gel form within the gel-like aerosol generating substrate cartridge.

[0125] In addition, the resistance heating pipe heater 136e heats the tobacco body 58 of the electric heated smoking article 50 on its side, generating an aerosol from the tobacco leaves inside the tobacco body 58.

[0126] For electrically heated smoking articles used in such devices, the amount of aerosol generated from the liquid composition and the amount of aerosol generated from the tobacco leaves can be appropriately adjusted by adjusting the relative positions of the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, or by adjusting their relative volumes (or heights).

[0127] The heat pipe 136d and pipe heater 136e of the sixth embodiment can heat the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 at different temperatures. The target temperature may be in the range of 150 to 350°C, and the temperature can be adjusted by a temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and filter 52 and into the user's mouth. For example, the hit blade 136b can heat the tobacco leaves of the tobacco body 58 in the temperature range of 150 to 250°C to generate an aerosol derived from the tobacco leaves, and the heat pipe 136d can heat the gel container of the gel-like aerosol generating substrate cartridge 56 in the temperature range of 250 to 350°C to generate an aerosol derived from the liquid composition of the gel container. The above temperature conditions may be opposite to each other. Even when heated in the above temperature ranges, the wrapping paper may not burn, or only a portion of the wrapping paper may char.

[0128] Of course, the excitation coil 136c, the heater pattern of the pipe heater 136e, the sensing unit and the control unit 120 are electrically connected, and the battery and the control unit are also electrically connected. It is desirable that the heat pipe 136d and the pipe heater 136e surround only the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, and not surround the paper tube 54 or the filter 52.

[0129] Figure 11 is a schematic diagram showing a cross-section of an aerosol generation system according to the seventh embodiment of the present invention.

[0130] The configuration of the electrically heated smoking article 50 is the same as in the embodiment described above.

[0131] The aerosol generator 100 according to the seventh embodiment is a system in which the entire gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 are heated by an induction heating type heat pipe 138a. Due to the heat generated by the heat pipe 138a, aerosols are generated not only from the aerosol generating substrate that exists in a gel-like state within the gel containment of the gel-like aerosol generating substrate cartridge 56, but also from the tobacco leaves etc. inside the tobacco body 58. The heat pipe 138a of the seventh embodiment heats the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 at essentially the same temperature. The target temperature can be in the temperature range of 150 to 350°C, and the temperature can be adjusted by the temperature sensing value. Even when heated within the above temperature range, the wrapping paper will not burn, and only a part of the wrapping paper may char.

[0132] For electrically heated smoking articles used in such devices, the amount of aerosol generated from the liquid composition and the amount of aerosol generated from the tobacco leaves can be appropriately adjusted by adjusting the relative positions of the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, or by adjusting their relative volumes (or heights).

[0133] Of course, the excitation coil 138b, the sensing unit and the control unit 120 are electrically connected to each other, and the battery and the control unit are also electrically connected. It is desirable that the heat pipe 138a surrounds only the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, and not surrounds the paper tube 54 or the filter 52.

[0134] Figure 12 is a schematic diagram showing a cross-section of an aerosol generation system according to the eighth embodiment of the present invention.

[0135] The configuration of the electrically heated smoking article 50 is the same as in the embodiment described above.

[0136] The aerosol generator 100 according to the eighth embodiment includes an induction heating type heat pipe 142a corresponding to the gel-like aerosol generating substrate cartridge 56 and an induction heating type heat pipe 142b corresponding to the tobacco body 58. Excitation coils 140a and 140b for induction heating are also provided separately. The heat pipe 142a heats the gel-like aerosol generating substrate cartridge 56 on its side surface to generate an aerosol from the aerosol generating substrate present in gel form within the gel-like aerosol generating substrate cartridge, and the heat pipe 142b heats the tobacco body 58 on its side surface to generate an aerosol from the tobacco leaves etc. provided within the tobacco body 58. The heat pipes 142a and 142b of the eighth embodiment can heat the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58 at different temperatures. The target temperature can be in the range of 150 to 350°C, and this temperature can be adjusted by a temperature sensing value. The generated aerosol is inhaled by the user through the paper tube 54 and filter 52, and then inhaled through the user's mouth. For example, the heat pipe 142b can heat the tobacco leaves of the tobacco body 58 in the temperature range of 150 to 250°C to generate an aerosol derived from the tobacco leaves, and the heat pipe 142a can heat the gel container of the gel-like aerosol generating substrate cartridge 56 in the temperature range of 250 to 350°C to generate an aerosol derived from the liquid composition of the gel container. The above temperature conditions can be opposite to each other. Even when heated in the above temperature range, the wrapping paper may not burn, or only a portion of the wrapping paper may char.

[0137] For electrically heated smoking articles used in such devices, the amount of aerosol generated from the liquid composition and the amount of aerosol generated from the tobacco leaves can be appropriately adjusted by adjusting the relative positions of the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, or by adjusting their relative volumes (or heights).

[0138] Of course, the excitation coils 140a and 140b, the sensing unit and the control unit 120 are electrically connected to each other, and the battery and the control unit are also electrically connected. It is desirable that the heat pipes 142a and 142b surround only the gel-like aerosol generating substrate cartridge 56 and the tobacco body 58, and not surround the paper tube 54 or the filter 52.

[0139] A person with ordinary skill in the art will understand that this embodiment can be embodied in modified forms without departing from the essential characteristics of the above description. Therefore, the method of disclosure, etc., should be considered from an explanatory rather than restrictive perspective. The scope of the present invention is described in the claims, not in the above description, and all differences within an equivalent scope should be considered to be included in the present invention. [Industrial applicability]

[0140] According to the present invention, a gel-like aerosol generating substrate cartridge that can be inserted into an electrically heated smoking article, and an electrically heated smoking article containing the same, are provided, which are used for the user to inhale both aerosols derived from a liquid and aerosols derived from a tobacco substrate.

Claims

1. A method for manufacturing a gel-containing rod for an electrically heated smoking article, comprising: heating a gel-like aerosol generating substrate containing glycerin and gelatin, which exists in a gel-like, semi-solid, or solid state in a first temperature range including room temperature, changes to a liquid state in a second temperature range including 70°C, and vaporizes into an aerosol in a temperature range of 150 to 400°C upon heating; heating the substrate in a second temperature range to create a liquid state and allowing it to absorb moisture into a gel container; cooling the absorbent body to the first temperature range so that the gel-like aerosol generating substrate exists in a gel-like state in the gel container; pushing the absorbent body into a separate pipe structure and pressurizing it from the pipe structure; and wrapping it in a cylinder shape using wrapping paper to obtain a gel-containing rod.

2. The gel-like aerosol generating substrate is A method for producing a gel-containing rod for an electrically heated smoking article according to claim 1, further comprising one or more of the following: water, agar, thickener, starch powder, cellulose, carboxymethyl ethers, natural food flavoring, or fruit extract.

3. A method for manufacturing a gel-containing rod for an electrically heated smoking article, characterized in that the gel-like aerosol generating substrate contains 50% by weight or more of glycerin, as described in claim 1 or 2.

4. The gel-like aerosol generating substrate is The liquid composition comprises 80 to 100% glycerin VG and 0 to 20% glycerin PG by weight, The mixture contains 1 to 6 g of gelatin per 100 ml, which is a mixture of 60 to 80% liquid composition and 20 to 40% water by volume. A method for manufacturing a gel-containing rod for an electrically heated smoking article according to claim 1, characterized in that it further contains a flavoring agent added in an amount of 10% or less relative to the total weight of the liquid composition.

5. The method for manufacturing a gel-containing rod for an electrically heated smoking article according to claim 4, characterized in that the liquid composition is contained in the gel-containing rod in an amount of 70 to 120 mg.

6. The gel-like aerosol generating substrate contains a liquid composition consisting of 80 to 100% glycerin VG and 0 to 20% glycerin PG, The liquid composition contains 0.13 to 0.32 mg / mm³ per unit volume of the gel containment. ３ A method for manufacturing a gel-containing rod for an electrically heated smoking article, as described in claim 1, characterized in that the gel is present in the gel-containing material in an amount.

7. The method for manufacturing a gel-containing rod for an electrically heated smoking article according to claim 1, characterized in that the gel-containing material is one or more of melamine-based foamed resin, pulp or a fabric containing pulp, a woven or nonwoven cotton fabric, a woven or nonwoven bamboo fiber fabric.

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