Aerosol generating device, cartridge, aerosol generating body, and preparation method

Abstract

The present application relates to an aerosol generating device, a cartridge, an aerosol generating body, and a preparation method. The aerosol generating body comprises a plurality of wires which are in contact with each other and extend in a preset direction; an aerosol generating medium is contained within the wires; and an aerosol channel is formed between adjacent wires.

Description

Smoke-generating equipment, smoke cartridges, smoke-generating body, and preparation methods Related applications

[0001] This application claims priority to patent application No. 202510107100.2 filed with the State Intellectual Property Office of the People's Republic of China on January 22, 2025, entitled "Smoke Generating Device, Smoke Cartridge, Smoke Generating Body and Preparation Method", the entire contents of which are incorporated herein by reference. field

[0002] This application relates to technologies for heated non-smoking and tobacco products, and particularly to smoking devices, tobacco cartridges, smoking bodies, and preparation methods.

[0003] In related technologies, new non-smoking and tobacco products such as heated tobacco products are an inevitable trend. However, the manufacturing process of heated tobacco products and tobacco cartridges is complex, requiring a lot of smoke-generating equipment and consuming a certain amount of manpower and financial resources. Moreover, most cartridge smoke generators use filaments, flakes, granules, or pastes, which often leads to problems such as high or low suction resistance and unstable smoke production, affecting the smoking effect.

[0004] Among them, Chinese patent CN202210470849.X discloses a cooling section using a multi-strand filament structure, but it is mainly used to solve the functional problems of cooling and airflow, and does not involve the structure of the smoke generation section.

[0005] There is currently no effective solution to the problem of unstable smoke generation from heated non-smoke products in related technologies.

[0006] This application provides a smoke-generating device, a smoke cartridge, a smoke-generating body, and a preparation method to at least solve the problem of unstable smoke generation of heated non-combustible non-smoke products in related technologies.

[0007] In a first aspect, this application provides a smoke generator, comprising a plurality of interconnected wires extending in a predetermined direction, wherein the wires contain a smoke-generating medium and a smoke channel is formed between adjacent wires.

[0008] Secondly, this application provides a tobacco cartridge, which includes a package, a filter, a cooling component, and the smoke-generating body described in the first aspect. The filter, the cooling component, and the smoke-generating body are arranged sequentially along the axial direction and are packaged within the package.

[0009] Thirdly, this application provides a method for preparing a smoke-generating body, the smoke-generating body including the smoke-generating body described in the first aspect, the preparation method including: preparing a filament; wherein the filament contains a smoke-generating medium; and wrapping multiple filaments with a wrapping layer to form a smoke-generating body.

[0010] Fourthly, this application provides a method for preparing a tobacco cartridge, comprising: using a wrapping component to externally twist and join a filter tip, a cooling component, and the smoke-generating body described in the first aspect to complete the composite, thereby forming a tobacco cartridge.

[0011] Fifthly, this application provides a smoke-generating device, which includes a smoke-generating apparatus and the smoke cartridge described in the second aspect.

[0012] Compared with related technologies, this application provides a smoke-generating device, a smoke cartridge, a smoke-generating body, and a preparation method. The smoke-generating body is designed with a structure of multiple lines that are in contact with each other and extend along a preset direction. This structure can form a stable and predictable smoke channel between adjacent lines, thereby stabilizing the smoke flow and improving the suction effect.

[0013] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this detailed description, illustrate embodiments consistent with this application and, together with the detailed description, serve to explain the principles of this application.

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a schematic diagram of a smoke cartridge structure containing a smoke-generating body with a parallel wire harness according to an embodiment of this application; Figure 2 is a cross-sectional view of the smoke-generating body along AA in Figure 1; Figure 3 is a schematic diagram of a smoke cartridge structure containing a smoke-generating body with an integrally twisted wire harness according to an embodiment of this application; Figure 4 is a slanted view of the structure from the BB end face in Figure 3; Figure 5 is a schematic diagram of a combined cross-sectional structure of the slender wires of the smoke-generating body according to a preferred embodiment of this application; Figure 6 is a schematic diagram of another embodiment of the smoke body of this application; Figure 7 is a cross-sectional view of a hollow structure of a non-metallic molded fine wire or metal wire according to an embodiment of this application; Figure 8 is a schematic diagram of a smoke cartridge with a four-segment structure according to an embodiment of this application; Figure 9 is a schematic diagram of a monofilament and single yarn knotted rope structure according to an embodiment of this application; Figure 10 is a schematic diagram of a monofilament and single yarn knotted rope structure according to an embodiment of this application. Figure 11 is a schematic diagram of the single-core composite strand and single-core composite strand knotted structure of an embodiment of this application; Figure 12 is a schematic diagram of the double-filament structure of the receptor strand of an embodiment of this application; Figure 13 is a schematic diagram of the multi-filament strand and multi-yarn knotted structure of an embodiment of this application; Figure 14 is a schematic diagram of the single-core composite strand and single-core composite strand knotted structure of an embodiment of this application; Figure 15 is a schematic diagram of the multi-core composite strand and multi-core composite strand knotted structure of an embodiment of this application; Figure 16 is a schematic diagram of the structure of the ternary composite tobacco cartridge of a preferred embodiment of this application; Figure 17 is a flowchart of the preparation method of the tobacco cartridge of an embodiment of this application; Figure 18 is a schematic diagram of the structure of the rope-shaped sinker paper yarn smoke generator of a preferred embodiment of this application; Figure 19 is the outer side of the preferred embodiment of this application. Figure 20 is a schematic diagram of a structure with a multi-layered strand configuration; Figure 21 is a schematic diagram of a structure of a rope-shaped immersion paper yarn smoke generator according to a preferred embodiment of the present application; Figure 22 is a schematic diagram of the magnetization temperature curve of a immersion paper yarn smoke generator with a magnetic metal wire wound in the middle layer according to a preferred embodiment of the present application; Figure 23 is a schematic diagram of the manufacturing method of the immersion paper yarn smoke generator according to an embodiment of the present application; Figure 24 is a schematic diagram of the structure of the immersion paper yarn smoke generator according to a preferred embodiment of the present application; Figure 25 is a schematic diagram of the structure of the immersion paper yarn smoke generator mixed with the sensor metal wire (88a) according to a preferred embodiment of the present application; Figure 26 is a schematic diagram of the immersion paper yarn smoke generator of the preferred embodiment of the present application after being soaked in aerosol. Figure 27 is a schematic diagram of the substrate-immersed paper yarn smoke generator (containing sensor metal wire (88a)) after being immersed in an aerosol matrix according to a preferred embodiment of this application, at 100x magnification; Figure 28 is a schematic diagram of the preparation process structure of the composite metal wire according to a preferred embodiment of this application; Figure 29 is a flowchart of the preparation method of the composite metal wire according to a preferred embodiment of this application; Figure 30 is an enlarged schematic diagram of the structure of the composite metal wire at point A in Figure 28; Figure 31 is a schematic diagram of the preparation process structure of the composite metal wire according to a preferred embodiment of this application; Figure 32 is a flowchart of the preparation method of the composite metal wire according to a preferred embodiment of this application; Figure 33 is an enlarged schematic diagram of the structure of the composite metal wire at point B in Figure 31;Figure 34 is a second schematic diagram of the composite metal wire preparation process according to a preferred embodiment of this application; Figure 35 is an enlarged schematic diagram of the composite metal wire at point C in Figure 34; Figure 36 is a schematic diagram of the structure containing the composite metal wire according to a preferred embodiment of this application; Figure 37 is a schematic diagram of the structure of the smoke generating device according to a preferred embodiment of this application.

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0019] In the embodiments of this application, the aerosol matrix, also known as the smoke-generating medium, is defined as a general term for a mixture that can release aerosols (i.e. smoke), the main components of which include nicotine substances, fogging agents, and tobacco flavorings.

[0020] In this embodiment, the concept of nicotine is used in a broad sense, including free nicotine bases, other nicotine compounds, and nicotine derivatives. The molecular formula of nicotine is C1. 10 H 14 N2, its chemical structure comprises a pyridine ring and a pyrrolidine ring, which are connected by a covalent bond, and the pyrrolidine ring also has a methyl substituent. The active ingredient of nicotine can be in a free or bound state, and its existence can include: nicotine and nicotine salts naturally occurring in or extracted from tobacco plants, as well as synthetic nicotine and synthetic nicotine salts.

[0021] In this embodiment, tobacco plants typically contain nicotine bases and nicotine salts, such as nicotine citrate, nicotine malate, and nicotine tartrate; they also contain trace amounts of other nicotine compounds, such as nornicotine, anatabine, myosmine, and anabasine.

[0022] In this embodiment, synthetic nicotine is mainly synthesized using a multi-step method starting with nicotinic acid or 3-acetylpyridine, or by asymmetric synthesis, biological or enzymatic synthesis methods, to generate nicotine in the form of a free base. Synthetically synthesized nicotine salts mainly include: nicotine benzoate, nicotine salicylate, nicotine lactate, nicotine hydrochloride, nicotine citrate, nicotine tartrate, and nicotine malate, etc.

[0023] To generate stable and dense smoke, in some embodiments, different polyols or mixtures thereof are added to the aerosol generating matrix as fogging agents, such as propylene glycol, vegetable glycerin, and polyethylene glycol, and may also include esters of polyhydroxy alcohols or esters of hydroxy acids. These fogging agents have significantly different volatilization temperatures; for example, glycerol and 1,3-butanediol have boiling points of 290°C and 207.5°C, respectively, at 760 mmHg. However, this application defines the boiling point temperature range as 180-350°C.

[0024] The function of tobacco flavorings is to impart various flavors, containing natural flavorings such as vanillin, menthol, eugenol, citral, linalool, ethyl acetate, other fruit and spice extracts; and synthetic flavorings such as acetylpyrazine, diacetyl, cyclic ketones, and various esters.

[0025] When inhaling heated tobacco products, the key chemical ingested by the user is nicotine. Simultaneously, the production of a large amount of vapor and diverse flavors provides a superior user experience. In this application, an aerosol matrix liquid mixture is uniformly deposited onto a rope-like vapor-generating substrate woven from threads and then dried to form a filament.

[0026] Thin-sheet heated non-combustible electromagnetic cigarette cartridges are the most known technology to date, in which the main component of the smoke-generating body (aerosol matrix segment) is a layered stack of tobacco sheets.

[0027] Tobacco sheet is a type of reconstituted tobacco, made from tobacco as the raw material, with the addition of cellulose, flavorings, fogging agents, preservatives, and adhesives. Its production processes mainly include rolling, papermaking, and slurry processing. First, various raw materials are mixed into a slurry, which is then filtered, cast, pressed, and dried to produce tobacco sheet paper. This production method is characterized by its complex processes, expensive equipment, and the poor uniformity and low strength of the tobacco sheet paper.

[0028] In the process of forming this type of tobacco cartridge, the tobacco sheet first needs to be longitudinally cut, and then rolled and bonded into a smoking stick. This process has very high requirements for the dimensional accuracy, material uniformity, tensile strength and other material parameters of the tobacco sheet, otherwise it is easy to break.

[0029] In some implementations, during the electromagnetic cartridge molding process, tobacco sheets and metal strips need to be wound together to the central area. This makes it more difficult to cut wider metal strips (e.g., wider than 3mm) during the cartridge cutting process. Furthermore, this configuration of the metal strip at the cartridge's axis is a central heating method, which has the drawback of overly concentrated heat, leading to uneven carbonization and significant differences in aerosol release levels depending on the number of puffs taken.

[0030] In some implementations, there is also a granular cartridge. For granular cartridges, the metal sheets are inserted piece by piece, resulting in low production efficiency. Thinner metal sheets have low strength and are difficult to insert into the aerosol matrix, while thicker metal sheets are also difficult to cut. Furthermore, the irregular and disordered arrangement of the granular aerosol matrix can easily lead to airway instability and inconsistent carbonization zones during heating.

[0031] This application provides a smoke cartridge with a smoke-generating body consisting of multiple interconnected linear structures extending in a predetermined direction.

[0032] The three-section and four-section cartridges listed in the embodiments described in this application are only for illustrating the application to different aerosol forming matrices, and the embodiments are not limited to such examples. Example 1

[0033] Please refer to Figure 1. Figure 1 is a schematic diagram of a cigarette cartridge structure with a smoke-generating body constructed from parallel wire harnesses according to an embodiment of this application. The cigarette cartridge is roughly arranged in a cylindrical strip configuration and includes: a filter tip 1, a cooling component 2, and a smoke-generating body 3. In this embodiment, the lengths of the filter tip 1, the cooling component 2, and the smoke-generating body 3 are 11 mm, 18 mm, and 16 mm, respectively. The three components are wrapped by a smoke tube 4 to form a three-section cigarette cartridge. The outer diameter of the cigarette cartridge can be 7.2 mm, and the total length is 45 mm. The outermost layer of the smoke-generating body 3 is a shaping layer 301, which can be composed of a thin aluminum foil composite paper with an average wall thickness of 0.3 mm. Inside, there are multiple parallel stacked slender wires 302, each wire being straight. These wires can be made of modified aramid fiber, capable of withstanding temperatures up to 400℃ without significant chemical changes or the release of harmful substances. They are spun into fiber yarns, with an aerosol matrix 303 diffusely distributed on their surface and inside. The interior also contains longitudinally straight wire gaps 304, forming part of the air passage. Furthermore, these wire gaps 304 are controllable; their size is controlled by adjusting the outer diameter of adjacent slender wires 302, thereby controlling the equivalent inner diameter of the air passage. If the air passage of the smoke generator 3 is divided into radial sections, the size of the wire gap 304 can be controlled by controlling the outer diameter of adjacent slender wires 302 in different sections, thereby controlling the equivalent inner diameter of the air passage in different sections. This satisfies the need for local adjustments to suction resistance, air intake, etc., to address the varying smoke output caused by uneven heating in the smoke generator 3. In another embodiment, the local size of the wire gap 304 is controlled by controlling the local outer diameter of adjacent slender wires 302, thereby controlling the local equivalent inner diameter of the air passage. By controlling the local inner diameter of the air passage, the width of the air passage varies axially, making the airflow velocity in a single air passage controllable. This can be combined with the heat distribution of the heating element to control the flow velocity within the air passage, achieving a better smoke generation effect.

[0034] When the wire is manufactured using a spinning process, its surface is not smooth; in reality, it is uneven (when multiple wires run in parallel, they are not completely flat and smooth channels; the internal uneven buffer space is also beneficial for cooling when airflow passes through). This structural feature, combined with the aforementioned adjustable gap, constitutes a better way to control airflow speed.

[0035] It should be noted that in some implementation schemes, the shaping layer 301 may not be provided. Instead, the overall shaping of the yarn may be achieved by external binding or by incorporating adhesive or the yarn itself.

[0036] Figure 2 is a cross-sectional view of the smoke-generating body along section AA in Figure 1 (the smoke tube 4 is not shown here). The shaping layer 301 can be composed of aluminum foil 301a and pine paper 301b. After shaping, its outer periphery is circular, and the smallest unit of the internal slender wires 302 is made of the same material and is a single, relatively thick fiber yarn. This configuration inside the smoke-generating body 3 is a single-yarn pattern. Before the bundled wrapping of the wires, the aerosol matrix 303 is deposited on the surface and interior of the fiber yarns using various suitable methods, including immersion, spraying, brushing, rolling, and atomization. After shaping, a small amount of aerosol matrix 303 is scattered into the gaps 304 between the wires. In this design, the cross-section of the fiber yarns is approximately circular, the fiber material is soft and fluffy, and the slender wires 302 are not intertwined. Combined with the numerous longitudinal gaps 304, the entire smoke-generating body 3 is very loose and breathable, and low draw resistance is expected during smoking applications. Aluminum foil has a certain strength, which is beneficial for shaping and ensuring roundness.

[0037] For ease of operation and user mouthpiece use, the outer diameter of the smoke-generating body 3 in this disclosure is designed to be between 4-10 mm, and the length is between 8-40 mm. To achieve a high degree of roundness, thin and uniformly sized long wires 302 are used, with an equal diameter set between 0.01-1.5 mm and a quantity set between 10-2,000 strands.

[0038] In this embodiment, the cartridge does not contain a heating element, and the thin wires are arranged in an orderly longitudinal direction along the central axis of the cartridge. This configuration is suitable for inserting needle-shaped or sheet-shaped heating elements into the central area of ​​the wire bundle for central heating, or for using annular heating elements to perform circumferential heating on the smoke-generating body 3 section from the periphery of the smoke tube 4.

[0039] It should be noted that, in some embodiments, the fiber yarn can be various natural fibers (plant fibers and mineral fibers) or chemical fibers (man-made fibers, synthetic fibers, and inorganic fibers) that do not contain nicotine. Suitable natural fibers include plant fibers and mineral fibers that can withstand temperatures up to 250°C.

[0040] Plant fibers include: seed fibers, bast fibers, leaf fibers, and fruit fibers. Seed fibers are single-celled fibers formed from the epidermal cells of some plant seeds, such as cotton and kapok. Bast fibers are single-celled or processed fibers obtained from the phloem of some plants, such as flax, ramie, jute, and bamboo fiber. Leaf fibers are processed fibers obtained from the leaves or leaf sheaths of some plants, such as sisal and abaca. Fruit fibers are fibers obtained from the fruits of some plants, such as coconut fiber.

[0041] Mineral fibers are fibers obtained from fibrous mineral rocks. Their main components are various oxides, such as silicon dioxide, aluminum oxide, and magnesium oxide. Their main source is various types of asbestos, such as chrysotile and crocidolite.

[0042] Suitable chemical fibers are fibers that have been chemically processed, including non-toxic and easily cut man-made fibers, synthetic fibers, and inorganic fibers.

[0043] Man-made fibers, also known as regenerated fibers, refer to textile fibers made from materials containing natural or protein fibers, such as wood, sugarcane, reeds, and soybean protein fibers, through chemical processing. These fibers are then modified to prepare fiber yarns suitable for the present disclosure. The main suitable man-made fibers include viscose fiber, modal fiber, bamboo fiber, and acetate fiber.

[0044] Synthetic fibers are first synthesized from substances that do not inherently contain cellulose or protein, such as petroleum, coal, natural gas, limestone, or agricultural byproducts. These are then processed into fibers using chemical synthesis and mechanical processing. Finally, they are modified to be heat-resistant by adding flame-retardant substances or altering their composition. For example, polyester fibers, polyamide fibers, nylon fibers, aromatic polyamide fibers, polytetrafluoroethylene fibers, and polyimide fibers are modified to withstand temperatures of 250°C or even 400°C, thus making them suitable for the function of an aerosol carrier as described in this disclosure. Simultaneously, at these high temperatures, they do not undergo significant chemical reactions, release harmful substances, produce unpleasant odors, or generate large amounts of dust.

[0045] Inorganic fibers are made from natural inorganic materials or carbon-containing polymer fibers through artificial spinning or direct carbonization, including glass fibers, metal fibers and carbon fibers.

[0046] Paper includes plant fiber paper (non-tobacco plant and tobacco plant) and mineral fiber paper (ceramic paper, glassine paper, graphite paper). Example 2

[0047] This application provides a quaternary composite structure e-cigarette cartridge. Please refer to Figure 3. Figure 3 is a schematic diagram of the e-cigarette cartridge structure containing an integrally twisted wire harness smoke generator according to an embodiment of this application. As shown in Figure 3, the key difference from Embodiment 1 is that the slender wires 302 are integrally twisted and contain magnetic metal wires, which are suitable for electromagnetic induction heating smoking applications. The lengths of the filter tip 1, cooling component 2, smoke generator 3, and bottom plug 5 can be 11mm, 18mm, 12mm, and 4mm, respectively. The four are wrapped by the smoke tube 4, forming a four-segment electromagnetic e-cigarette cartridge. The outer diameter of the cartridge is 7.2mm, and the total length is 45mm. The shaping layer 301 is a thin tissue paper with a thickness of 0.025mm; it wraps multiple integrally twisted slender wires 302. The solid aerosol matrix 303 is distributed in a portion of the slender wires and in the internal gaps 304 of the smoke generator 3. The bottom plug 5 can be made of porous cellulose acetate, which functions to prevent tobacco dust and tar leakage, slow down aerosol condensation, and enhance the aesthetics of the cartridge.

[0048] Please refer to Figure 4, which is a schematic diagram of the structure viewed obliquely from the BB end face in Figure 3. As shown in Figure 4, only a portion of the shaping layer 301 is shown. The slender wire 302 is composed of two types of units: fiber yarn 302a and metal wire 302b, i.e., single yarn and single filament mode; the fiber yarn 302a is a modified aramid (aramid 1313 with added flame retardant material) flat yarn, and the metal wire 302b is a 0.2mm diameter stainless steel SUS 420 round wire, which is a martensitic stainless steel with magnetism. In this overall twisted state, on the one hand, the slender wire 302 is not easy to fall off during processing, and on the other hand, the gap 304 is no longer straight, but spiral, extending the length of the airflow path (specifically, it can be similar to the structure in Example 1, where the spiral twist and gap adjustment can correspond to torque control (which may be slightly different from Example 1)), which can enhance the effect of heat convection heat transfer and help reduce the aerosol temperature.

[0049] The metal wire 302b is magnetic. When the cartridge is used in conjunction with the electromagnetic smoking device, it acts as a sensor, coupling with the high-frequency alternating electromagnetic field generated in the device. This rapidly increases its temperature through eddy current heating, which then heats the adjacent aerosol matrix 304 (not shown in Figure 4). Therefore, the cartridge in this embodiment is a magnetic cartridge, with its heating element (sensor) 302b discretely distributed within the smoke-generating body 3. This design offers advantages such as easy cutting during processing and uniform heating and carbonization during operation.

[0050] Some applications derived from this embodiment include:

[0051] Fiber yarn 302a needs to withstand high temperatures of 300℃ to 400℃. Suitable substrates include: polytetrafluoroethylene (PTFE) fibers and certain aromatic polyamide fibers, polyimide fibers, etc., whose safe operating temperature is between 250-500℃; graphite fibers, which can withstand high temperatures of 1,500-3,000℃; glass fibers, which have excellent heat resistance and a decomposition temperature exceeding 500℃; para-aramid (PPTA), such as DuPont's Kevlar or Teijin's TWARON, with a limiting oxygen index of around 30 and a decomposition temperature as high as 560℃; meta-aramid (MPIA), such as DuPont's Nomex, with a thermal decomposition temperature of 430℃; and some ceramic fibers, such as Nextel alumina ceramic fibers, which can withstand high temperatures up to 1,200℃.

[0052] Magnetic metal wire 302b is a physical whole, and its material composition includes one of the following: a single metal, a single alloy, and a composite metal. Examples of single metal wires include iron (Fe) wire, nickel (Ni) wire, and cobalt (Co) wire; examples of single alloy wires include various magnetic stainless steel wires (such as ferritic stainless steel, martensitic stainless steel, and some cold-worked austenitic stainless steel), various soft magnetic alloys (such as permalloy, iron-based amorphous alloys, cobalt-based amorphous alloys, iron-based nanocrystalline alloys, iron-silicon-aluminum alloys, Invar alloys, and constant expansion alloys), and Kovar alloy wires, etc.; composite metal wires contain two or more metal materials, of which at least one is magnetic material. Composite refers to the combination of two or more metal materials through rolling, electroplating, electroless plating, sputtering, welding, cladding, and coating.

[0053] In some applications, the basic constituent unit configuration of the slender wire 302 can be configured in various easily manufactured combinations. For example, as shown in Figure 5, Figure 5 is a schematic diagram of a combined cross-sectional structure of the slender wire of the smoke-generating body in this application. The smoke-generating body includes fiber yarn 302a, metal wire 302b, and monofilament multi-yarn composite strand 302c (including a metal wire and surrounding fiber yarn, the two are intertwined to form a composite strand, as a constituent unit of the smoke cartridge, it also has a surface with uneven space that is conducive to airflow transmission and cooling, etc., wrapping the sensor metal wire, on the one hand... Increasing strength, on the other hand, can prevent the metal wires from causing significant thermal impact on the shaping layer (usually containing paper) and the external smoke tube if they wrap around the outer edge of the aerosol matrix section or even come into contact with the shaping layer, leading to the generation of paper paste and glue smells. This can be achieved through a combination of one or more units among the following: multi-filament multi-yarn composite strand 302d (including multiple metal wires and surrounding fiber yarns), multi-yarn strand 302e (including multiple intertwined fiber yarns forming fiber strands), and multi-filament metal strand 302f (including multiple metal wires wound together to form metal strands). A reasonable configuration requires obtaining an optimized smoke generator 3, possessing high porosity (the ratio of open area within the cross-section to the overall cross-sectional area), good roundness, a symmetrical and uniform structure, and containing necessary metal wires (if any).

[0054] Different effects produced by different winding methods of fiber filaments and metal wires: (1) Some configurations are designed to improve manufacturability. On the one hand, they increase longitudinal tensile strength because some fiber filaments, such as paper yarn, have low strength, while some ultrafine fiber filaments, such as those with an equivalent diameter of less than 0.03 mm, have low strength. Therefore, the blending method used in this disclosure can reduce breakage in spinning or molding, knotting or bundling. On the other hand, it ensures that the transverse cutting difficulty of ropes or bundles is reduced because overly thick knotting or bundling units and overly concentrated metal wire distribution will significantly increase their transverse cutting force, increase the difficulty in the small-segment cutting process of the smoke body, and increase the difficulty in the process of cutting the smoke body. The wear of the sharp tool is a concern. Therefore, the constituent units of the smoke-generating body in this disclosure are configured with the smallest equivalent diameter, the narrowest equivalent diameter distribution range, and the finest and most discrete metal wires to achieve this purpose. (2) Some configurations are designed to improve the stability of the smoke-generating body structure. Various sizes and blending methods are used to make the physical arrangement inside the smoke-generating body more uniform and the roundness of its outer periphery better. This reduces the difficulty of subsequent cigarette cartridge splicing and improves the aesthetics of the cigarette cartridge. In particular, during the rope winding or bundle shaping process, various different units with a certain degree of appropriate difference in equivalent diameter are needed to make the rope or bundle fuller. The internal space accommodates more fiber filaments and metal wires, making the structure more stable during processing and ensuring the consistency of shape and gap ratio; (3) Some configurations are designed to build a stable and uniform air passage. Through various blending methods, the structure is made as loose as possible, and the gaps between units are made as evenly distributed as possible. This design, along with the loose internal structure of the fiber filaments and metal wires themselves, makes the smoke generator have a smaller suction resistance. At the same time, when heated, the physical deformation trend of the internal units of the smoke generator reaches a synergy, thereby keeping the air passage stable and ultimately providing users with a high-quality user experience; (4) Some configurations are designed to obtain more uniform heating and ultimately The carbonization effect, especially the finer and more uniformly distributed metal wires that function as heating elements, can make the aerosol matrix heat up more evenly, produce smoke faster, and produce more smoke. This can achieve carbonization more evenly, improve the utilization rate of effective components, and reduce the phenomenon of excessive carbonization caused by local overheating, which can lead to charring or even the release of harmful substances. (5) Some configurations are designed to reduce the thermal impact on the shaping layer of the smoke generator and the outer paper tube of the cartridge. Therefore, in some applications, the heating element metal wires are first wrapped with other fiber filaments and then used as bundles or knotted units. This can reduce the thermal impact on the shaping layer and the outer paper tube of the cartridge. Example 3

[0055] This application provides a structural configuration for a smoke generator 3, characterized in that: one of the basic constituent units 302a of the slender wire 302 is a non-metallic molded fine wire, and several loops of additional linear material 305 are wound around the periphery of the wire bundle. Please refer to Figure 6, which is a schematic diagram of another embodiment of the smoke generator of this application. The main constituent substrate of the non-metallic molded fine wire 302a is tobacco plant, fogging agent, flavoring, high-temperature resistant silicone, adhesive, thickener, and flame retardant. It is prepared into a loose tobacco stick through extrusion. The first three constitute the aerosol matrix 303 (not shown in the figure), that is, the slender wire 302a is fused together with it during molding, without the need for subsequent deposition processes. The additional material 305 here is paper yarn fiber strand with an equivalent diameter of 0.3 mm, which contains clove flavoring. On the one hand, it can play a role in bundling and shaping, eliminating the need for film or paper shaping layers 301 as in Examples 1 and 2. On the other hand, it can also add fragrance to achieve a unique flavor. Moreover, this structure allows for more airflow gaps 304 on the outer surface of the smoke generator 3, resulting in a relatively low outer surface temperature and less thermal impact on the external smoke pipe 4 (not shown in the figure).

[0056] In some applications, the auxiliary material 305 takes the form of a strip, sheet, mesh, block, tube, or sphere, and may be made of the same or different material as the substrate of the elongated wire 302a. When using a non-metallic molded tobacco rod configuration, in order to construct more gaps 304 to reduce suction resistance, the non-metallic molded tobacco rod 302a and / or the metal wire 302b can be made into a hollow structure, that is, it contains 1-9 through holes 3020 inside, and its cross-section is shown in Figures 7a and 7b. Figure 7a is a schematic cross-sectional view of the hollow structure of the non-metallic molded wire or metal wire in an embodiment of this application, and Figure 7b is a schematic cross-sectional view of the hollow structure of the non-metallic molded wire or metal wire in a preferred embodiment of this application.

[0057] The tobacco cartridge with a parallel wire bundle structure disclosed in this application is suitable for heated tobacco products. The tobacco cartridge includes a filter, a cooling component, and a smoke-generating body. The smoke-generating body has a parallel wire bundle structure, containing multiple strands of thin, elongated wires that are not intertwined and arranged in parallel. The basic constituent units of the thin, elongated wires include one or more types of non-metallic textile fiber yarns, non-metallic molded fine wires, and metal wires. This disclosure designs the unit morphology of the aerosol matrix carrier as textile-formed fiber yarns or molded fine wires, constructing a smoke-generating body with high porosity. This provides advantages such as simple tobacco stick manufacturing process, resistance to breakage, ease of cutting, and low draw resistance.

[0058] This application also provides a tobacco cartridge containing a rope-like magnetic smoke generator and a method for manufacturing the same. The basic structural unit of the rope consists of multiple magnetic metal strands and multiple loose strands made of woven and twisted fibers, referred to here as carrier strands. This structural configuration allows the aerosol matrix to have better stability and delivery efficiency, providing a smoother inhalation experience, reducing throat irritation, and improving the bioavailability of nicotine. For detailed structure, please refer to the following description. Example 4

[0059] Please refer to Figure 8, which is a schematic diagram of a four-segment structured tobacco cartridge according to an embodiment of this application. The internal structure of the tobacco cartridge includes a filter tip 1, a cooling component 2, a smoke-generating body 3, and a bottom plug 4. The lengths of the filter tip 1, cooling component 2, smoke-generating body 3, and bottom plug 4 are 12mm, 13mm, 14mm, and 5mm, respectively. This tobacco cartridge adopts a quaternary composite method, in which the four units, all of which are columnar in shape, are arranged coaxially in sequence and integrated together with cigarette paper. That is, the tobacco cartridge is prepared by twisting, bonding, and cutting. The cigarette paper forms an outer tube 5 after parallel winding and bonding. The outer diameter of the tube is 7.2mm and the wall thickness of the tube is 0.1mm. The outer diameter of the smoke generator 3 is 7mm. Its outer wrapping layer is a shaping layer 301, which is made of plant fiber-based tissue paper with a thickness of 0.03mm, rolled and bonded together. It is used to fix the internal structure to prevent loosening during processing and to ensure that the sides of the magnetic smoke generator have the necessary roundness, which is beneficial to the good shape of the cigarette cartridge after twisting and forming. Its interior has a small rope-like structure. The small rope segment has a loose structure, including multiple strands of receptor wires 302 and multiple strands of carrier wires 303 that are intertwined and woven together, as well as an aerosol matrix 304 dispersed in the small rope segment.

[0060] It should be noted that in some implementation schemes, the shaping layer 301 may not be required. The overall shaping of the rope can be achieved through external binding, the addition of adhesive, or the rope itself. Regarding the rope itself: the multiple strands can be shaped by twisting at least one strand together with each other.

[0061] The external binding and shaping involves binding the smoke generator with single or multiple strands of thread around its periphery to achieve shaping. Alternatively, another embodiment may be implemented by binding with single or multiple strands of thread interlaced within each rope inside the smoke generator, ensuring that the binding thread is not exposed. Alternatively, binding may be achieved through an interlacing structure where a single strand is partially interlaced within the rope and partially exposed outside, such as by sewing or threading, to achieve shaping.

[0062] Adhesive application for shaping: Adhesive is applied to at least the surface of the yarn before or after weaving through spraying, soaking, or coating. This allows the yarns to bond upon contact, thus shaping the woven smoke generator. Bonding can be done at either end of the smoke generator, leaving the middle section with a loose structure. Alternatively, the entire length of the smoke generator can be bonded while maintaining effective porosity and suction resistance. The adhesive hardens after drying, further aiding in the shaping of the yarn and providing support for the smoke generator.

[0063] The shaping is achieved by the yarn itself: at least one yarn is pulled out from each of the adjacent ropes in the smoke-generating body and intertwined with each other, so that at least some of the yarns between the adjacent ropes are partially intertwined, thereby defining the position of the adjacent ropes. This process is repeated to achieve overall shaping, which can be done by hand or by textile technology.

[0064] It should be noted that in some embodiments, the structure may not include the sensor strands 302, meaning the cartridge is a non-electromagnetic cartridge, but a conventional heating type. Specifically, it may be a structure formed by intertwining multiple base strands 303. These features are well understood by those skilled in the art and will not be detailed here. This embodiment only uses an electromagnetic cartridge with multiple sensor strands 302 and multiple base strands 303 as an example for illustration.

[0065] The rope-tying unit in this embodiment is configured as follows: the receptor strand 302 is a single metal wire, i.e., a monofilament structure; the base strand is a fiber strand made of 20 fiber yarns twisted together, i.e., a multi-yarn structure. The receptor strand 302 is made of iron-nickel-cobalt Kovar alloy 4J29 round wire, which has strong magnetism, and its quantity is 10 strands, with an equal cross-sectional diameter of 0.2 mm; the base strand 303 is mainly made of poly(m-phenylene isophthalamide) fiber yarn, which can withstand a high temperature of 400℃, and its quantity is 20 strands; the fine particles shown in Figure 8 are a schematic diagram of the deposition location of the aerosol matrix 304 after drying, i.e., they exist in the gaps of small rope segments, inside the base strand 303, and in its own pores.

[0066] Other application scenarios and design parameters based on this embodiment 1 are as follows:

[0067] In some applications, factors such as ease of use for smokers, appropriate amount of smoke, and compatibility with common smoking devices are taken into consideration. Therefore, in this disclosure, the equivalent diameter of the magnetic smoke generator 3 is set between 4-10 mm, and the length is controlled between 8-40 mm.

[0068] In other applications, the wrapping and shaping layer material 301 possesses certain mechanical strength and excellent high-temperature stability. Besides various plant fiber-based ordinary paper and cigarette paper, it can also be made of inorganic fiber paper such as ceramic paper or glassine paper, and various films such as polytetrafluoroethylene film and aluminum foil. To achieve better adhesion and ease of cutting, this disclosure recognizes that a suitable thickness is between 0.01 and 0.04 mm.

[0069] In some embodiments, to facilitate the cutting of the receptor strands 302 and achieve a more uniform distribution within the magnetic smoke generator 3, more and finer metal wires can be used in the knot, such as 50 equal strands of ultra-fine magnetic metal wires with a diameter of 0.05 mm as heating elements. However, excessive heating elements are difficult to cut during sizing and can easily lead to over-carbonization or even scorching of the magnetic smoke generator 3 during smoking applications. Therefore, considering economic cost and manufacturability while achieving the necessary eddy current heating effect, this disclosure defines the number of receptor strands 302 in the cartridge as between 2 and 100 strands, with the diameter of a single metal wire set between 0.01 and 1 mm.

[0070] When the receptor strand 302 is configured as a single metal wire, the carrier strand 303 can be configured as a fiber yarn, a fiber strand, or a fiber strand wrapped around a single metal wire. When knotting, these feeding units can be programmed into ropes with different structures through various combinations. Some cross-sectional schematic diagrams of combinations are shown in Figures 9-11, where the aerosol matrix 303 is not shown. In Figure 9 (Figure 9 is a schematic diagram of the single filament and single yarn knotting structure of an embodiment of this application), the knotting unit is a metal wire and a fiber yarn, i.e., a single filament and single yarn pattern; in Figure 10 (Figure 10 is a schematic diagram of the single filament and multi-ply knotting structure of an embodiment of this application), the knotting unit is a metal wire and fiber ply, i.e., a single filament and multi-ply pattern, wherein the fiber ply is woven from multiple fiber yarns; in Figure 11 (Figure 11 is a schematic diagram of the single filament core composite ply and single filament core composite ply knotting structure of an embodiment of this application), the knotting unit is a single metal core composite ply woven from a single metal wire and multiple fiber yarns, i.e., a single filament composite ply and single filament composite ply pattern.

[0071] In this embodiment, based on Figure 10, fiber yarns can also be provided simultaneously. Based on Figure 11, fiber yarns and / or fiber strands can also be provided simultaneously. It is understood that those skilled in the art can design the arrangement and combination of strands according to parameters such as flue gas flow rate, heating efficiency, and target customer needs. These will not be listed and described in detail here.

[0072] In the configurations described in Figures 9 to 11, the metal strand configurations are all single metal wires, that is, a physical whole, whose material composition is one of elemental metal, single alloy, and composite metal.

[0073] In some configurations, the metal wires in the rope are made of the same material and are magnetic. Examples of single-element metal wires in this case include iron (Fe) wire, nickel (Ni) wire, and cobalt (Co) wire; examples of single-alloy wires include various magnetic stainless steel wires (such as ferritic stainless steel, martensitic stainless steel, and certain cold-worked austenitic stainless steel), various soft magnetic alloys (such as permalloy, iron-based amorphous alloys, cobalt-based amorphous alloys, iron-based nanocrystalline alloys, iron-silicon-aluminum alloys, Invar alloys, constant expansion alloys), and Kovar alloy wires, etc.; composite metal wires contain two or more metal materials, including at least one magnetic material, and composite refers to being combined by means of rolling, electroplating, electroless plating, sputtering, welding, cladding, and coating.

[0074] In other configurations, the rope contains metal wires of different materials, at least one of which is magnetic. A primary function of the magnetic metal wires contained in the sensor strands of this disclosure is as a magnetic induction heating element, i.e., under the excitation of a high-frequency alternating magnetic field, a strong eddy current heating effect is generated therein. Example 5

[0075] Please refer to Figure 12, which is a schematic diagram of the dual-wire structure of the receptor strands in this embodiment of the application. The difference from Embodiment 4 lies in the material and structure of the receptor strands 302. In this embodiment, the receptor strands 302 in the magnetic smoke generator have a dual-wire structure, consisting of two magnetic metal wires A and B twisted together, as shown in Figure 12. Metal wire A is a stainless steel 410 (SUS410) round wire with a diameter of 0.12 mm; metal wire B is a nickel (Ni) round wire with a diameter of 0.08 mm. The number of such receptor strands 302 in the cartridge is 8 strands. The material, structure (multi-yarn) and number of strands, knotting method, bottom plug 4, quaternary composite structure, and other dimensions of the base strands 303 can be the same as in Embodiment 4.

[0076] Other application scenarios and design parameters based on this embodiment 2 are as follows:

[0077] When the single-strand sensor wire 302 contains multiple metal wires, it can be called a multi-wire structure, such as a composite metal wire made of multiple metals wound together. There are three basic combinations of composite metal wires: magnetic metal wires wound with magnetic metal wires, magnetic metal wires wound with non-magnetic metal wires, and non-magnetic metal wires wound with non-magnetic metal wires. Regardless of the combination, at least two magnetic metal wires are required in the magnetic smoke generator. The magnetic metal wires can be made of the aforementioned magnetic materials. The non-magnetic metal wires include copper (Cu) wire, silver (Ag) wire, aluminum (Al) wire, titanium (Ti) wire, chromium (Cr) wire, and various highly ductile alloys (such as nickel-chromium alloys, silver-copper alloys, and aluminum alloys), all of which can withstand temperatures up to 500°C.

[0078] When the receptor strands 302 are configured in the form of composite metal strands, the carrier strands 303 can be configured as fiber yarns, fiber strands, or fiber strands wrapped with composite metal strands. When knotting, these feeding units can be programmed into ropes with different structures through various combinations. Some cross-sectional schematic diagrams of combinations are shown in Figures 13 to 15 (aerosol matrix 303 is not shown), which correspond to Figures 9 to 11 above, respectively.

[0079] In Figure 13 (Figure 13 is a schematic diagram of the multi-ply and multi-yarn knotted rope structure of the application embodiment), the knotted rope unit is a composite metal ply yarn and fiber yarn, i.e., a multi-ply and single-yarn pattern; in Figure 14 (Figure 14 is a schematic diagram of the single-core composite ply and single-core composite ply knotted rope structure of the application embodiment), the knotted rope unit is a composite metal ply yarn and fiber ply yarn, i.e., a multi-ply and multi-yarn pattern; in Figure 15 (Figure 15 is a schematic diagram of the multi-core composite ply and multi-core composite ply knotted rope structure of the application embodiment), the knotted rope unit is a multi-metal core composite ply yarn woven from composite metal ply yarn and multiple fiber yarns, i.e., a multi-ply and multi-ply pattern.

[0080] Based on Figure 14, fiber yarns can also be set simultaneously. Based on Figure 15, fiber yarns and / or fiber strands can also be set simultaneously. Similarly, those skilled in the art can design the arrangement and combination of strands according to parameters such as flue gas flow rate, heating efficiency, and target customer needs, which will not be listed and described in detail here. Example 6

[0081] This application provides a ternary structure tobacco cartridge. Please refer to Figure 16, which is a schematic diagram of the structure of a preferred embodiment of the ternary composite tobacco cartridge. In this embodiment, the total length of the tobacco cartridge is 43mm. Internally, it includes a filter tip 1, a cooling element 2, and a magnetic smoke generator 3. The lengths of the filter tip 1, the cooling element 2, and the magnetic smoke generator 3 are 13mm, 14mm, and 16mm, respectively. Externally, it is formed by parallel rolling and bonding of cigarette paper 5. The shaping layer 301 is an aluminum foil with a thickness of 0.007mm. The sensor strand 302 consists of 8 strands, each a monofilament composite metal wire, formed by electroplating a nickel layer approximately 0.003mm thick onto the outer surface of a 0.25mm diameter iron-nickel alloy 1J50 round wire. The carrier strand 303 consists of 84 fiber strands, each woven from 6 fiber yarns. The basic material of the fiber yarn is modified paper yarn-based fiber capable of withstanding 350℃. The aerosol matrix 304 (not shown in Figure 16) is located in the gaps inside the magnetic smoke generator 3 and inside the fiber yarn itself.

[0082] Other application scenarios and design parameters based on this embodiment 3 are as follows:

[0083] In some designs, the fiber yarn is made of various natural or chemical fibers that do not contain nicotine-like substances. Suitable natural fibers include plant fibers and mineral fibers that can withstand temperatures up to 250°C. Plant fibers include: seed fibers, bast fibers, leaf fibers, and fruit fibers. Seed fibers refer to single-celled fibers grown from the epidermal cells of some plant seeds, such as cotton and kapok. Bast fibers refer to single fibers or processed fibers obtained from the phloem of some plants, such as flax, ramie, jute, and bamboo fiber. Leaf fibers refer to processed fibers obtained from the leaves or leaf sheaths of some plants, such as sisal and abaca. Fruit fibers refer to fibers obtained from the fruits of some plants, such as coconut fiber. Mineral fibers refer to fibers obtained from fibrous mineral rocks, mainly composed of various oxides, such as silicon dioxide, aluminum oxide, and magnesium oxide, and their main source is various types of asbestos, such as chrysotile asbestos and crocidolite. Suitable chemical fibers are fibers made through chemical processing, including non-toxic and easily cut man-made fibers, synthetic fibers, and inorganic fibers.

[0084] Man-made fibers, also known as regenerated fibers, refer to textile fibers made from materials containing natural or protein fibers, such as wood, sugarcane, reeds, and soybean protein fibers, through chemical processing. These fibers are then modified to produce yarns suitable for the present disclosure. Suitable man-made fibers include viscose fiber, modal fiber, bamboo fiber, and acetate fiber. Synthetic fibers are made by first synthesizing units from substances that do not inherently contain cellulose or protein, such as petroleum, coal, natural gas, limestone, or agricultural byproducts. These units are then chemically synthesized and mechanically processed into fibers. These fibers are then modified to be heat-resistant by adding flame-retardant substances or altering their composition. For example, polyester fibers (polyester), polyamide fibers (nylon), aromatic polyamide fibers (aramid), polytetrafluoroethylene fibers, and polyimide fibers are modified to withstand temperatures of 250°C or even 400°C, thus making them suitable for the function of an aerosol carrier in this disclosure. Simultaneously, at these high temperatures, they do not undergo significant chemical reactions, release harmful substances, produce unpleasant odors, or generate large amounts of dust. Inorganic fibers are made from natural inorganic materials or carbon-containing polymer fibers through artificial spinning or direct carbonization, including glass fibers, metal fibers and carbon fibers.

[0085] For this disclosure, a suitable number of carrier strands allows for easy cutting and a high porosity. Higher porosity allows for the retention and locking of more aerosol matrix, while providing lower draw resistance in smoking applications. Given that the diameter of the magnetic smoke generator ranges from 4 to 10 mm, and considering the significant differences in the equivalent diameter of the fiber yarns, the number of carrier strands is defined in this disclosure as between 10 and 2,000.

[0086] Based on the description of the foregoing embodiments, the innovation lies in constructing the heating element as a metal wire and configuring the aerosol matrix carrier as a fiber yarn. Then, the metal wire, metal wire strands, fiber yarn, fiber strands, and metal fiber composite strands are combined and woven into a rope-like structure, ensuring that the rope contains at least two magnetic metal wires, preferably multiple evenly distributed magnetic metal wires. Then, an aerosol matrix is ​​added to the rope, and it is wrapped and cut into magnetic smoke generators for subsequent cartridge molding. The cartridge manufacturing method involves key processes such as wire drawing, spinning, rope braiding, deposition, and splicing. A brief description of one manufacturing process for the cartridge of this disclosure is provided below.

[0087] Please refer to Figure 17, which is a schematic flowchart of a method for preparing a cigarette cartridge according to an embodiment of this application. The preparation method includes, but is not limited to, the following:

[0088] Receptor strand 302 forming: A highly ductile metal is extruded and drawn (also called wire drawing) under the assistance of a fixture by applying a certain temperature and mechanical force, or cut into wires (also called slitting), or multiple wires are further wound together to form a metal strand. Here, receptor strand 302 is defined as a single metal wire or a metal strand formed by winding multiple metal wires. It is worth noting that at least one type of magnetic metal wire is included in the prepared metal wire, which acts as a magnetic induction heating element in the subsequent cigarette cartridge application. Furthermore, to facilitate forming and cutting, the metal wire or metal strand is preferably annealed after forming to soften it. The metal wire is preferably circular, but when slitting and cutting thin strips, the metal wire is a ribbon with a rectangular cross-section; preferably, the aspect ratio of the rectangle is less than 10.

[0089] Base ply yarn 303 forming: Fibers that can withstand high temperatures of 250℃ are made into fiber yarns through spinning process, or multiple fiber yarns are further spun into fiber ply yarns. Here, base ply yarn 303 is defined as a single fiber yarn, or a fiber ply yarn spun from multiple fiber yarns. The spinning process here mainly refers to the process of forming suitable high-temperature resistant fibers into slivers and drawing and twisting them into yarn, which is divided into two main stages: sliver forming and yarn forming. Sliver forming process includes: first, pre-treating the fiber raw materials by degumming, washing, carbonization, etc., and then loosening them into single slivers of a certain length. Yarn forming methods include: (1) drawing and stretching several fiber slivers, or combing them while stretching, so that they are straight and parallel, and then twisting them into yarn; (2) dividing the combed fiber web into narrow strips, and then twisting them into yarn; (3) twisting and twisting the fiber slivers while stretching them into yarn, also known as the twisting method. It is worth noting that the main function of the carrier yarn in this disclosure is to carry and lock in the aerosol matrix 304, and its configuration aims to focus on a loose structure and low transverse shear force. Therefore, preferably, the fiber yarn or fiber strand uses low-strength fiber raw materials and is constructed with high porosity and a loose structure.

[0090] Rope weaving: The receptor strands 302 and the base strands 303 are woven and twisted into a long rope using various combinations. Any suitable combination can be used to weave a circular long rope, such as the basic structure described in the three embodiments above. Weaving with multiple thinner receptor strands 302 and multiple thinner base strands 303 results in a rope with higher roundness and a more balanced surface, and more uniform spacing, which is beneficial for a more uniform distribution of the aerosol matrix 304 in subsequent molding, as well as the generation of more subdivided and symmetrically distributed airflow channels. Similarly, the finally woven rope needs to have a relatively loose structure. Its maximum outer diameter is between 4-10 mm, preferably between 3.4-9.4 mm.

[0091] Base addition: Aerosol matrix 304 is deposited into a long rope through methods such as soaking, spraying, brushing, rolling, or atomization, and then dried to form a base-loaded long rope. The base addition process can be added before rope knotting, i.e., added to the fiber yarn or fiber strands; or it can be added after rope knotting, i.e., added to the woven long rope. This disclosure uses liquid aerosol matrix 304, which is deposited onto the surface and gaps within the rope, and penetrates into the fiber yarn, through full contact with the rope, to form a base-loaded long rope after drying. The aerosol matrix 304 ultimately exists on its surface or embedded in the form of ultrafine solid particles.

[0092] Shaping: The outer perimeter of the base long rope is wrapped and bonded with a film or cigarette paper, i.e., shaping layer 301, and then cut into 3 small segments of magnetic smoke generator. The shaping layer 301 is wrapped by flat roll bonding or oblique roll bonding. The purpose is to obtain a high side roundness and ensure the consistency of the outer diameter of the magnetic smoke generator. It also shapes the rope during subsequent cutting and lamination to prevent the internal rope structure from becoming disorganized. In addition, it can also prevent leakage of aerosol matrix 304 and leakage of liquid components into the external smoke tube 5. Therefore, it is preferable to use modified paper or aluminum foil with a certain degree of oil resistance, which will have excellent results. Here, the average wall thickness of the shaping layer 301 is set to be less than 0.05 mm, and thinner ordinary paper, heat-modified paper, or high-temperature resistant film is used.

[0093] Composite process: The filter tip, cooling component, and three small sections of magnetic smoke generator are joined together from the outside using cigarette paper to complete an online continuous composite process, forming a cigarette stick, which is then cut into cigarette cartridges. The composite process is an improvement on the traditional cigarette composite process, including wheel-type composite or linear composite methods. The cigarette paper is wound in parallel and bonded with adhesive.

[0094] This application discloses a tobacco cartridge with a rope-like magnetic smoke generator and its manufacturing method. The tobacco cartridge includes a filter, a cooling component, and a magnetic smoke generator. The magnetic smoke generator has a rope-like internal structure containing multiple interwoven receptor strands and carrier strands, as well as an aerosol matrix, including at least two magnetic metal wires. The manufacturing process of the tobacco cartridge includes receptor metal strand forming, carrier strand forming, rope knotting, base addition, shaping, and composite. This disclosure uses spinning, drawing, and rope knotting processes to prepare the aerosol matrix carrier and configure the magnetic induction heating element, constructing a magnetic smoke generator with uniformly distributed heating elements. The tobacco cartridge has high production efficiency, a simple manufacturing process, and is easy to cut. During smoking, the aerosol matrix is ​​uniformly carbonized, resulting in low suction resistance.

[0095] This application also provides embodiments of a precipitated paper yarn smoke generator and a method for manufacturing the same.

[0096] When inhaling heated tobacco products, the key chemical ingested by the user is nicotine. Simultaneously, the production of a large amount of vapor and diverse flavors provides a superior user experience, with the vapor generator being a crucial component. Natural plant fibers, after physical washing, beating, quenching, twisting, and air-drying during the papermaking process, form a stable and unique porous structure. This characteristic lays the foundation for paper fibers to be suitable as a vapor generator substrate. In this embodiment, an aerosol matrix liquid mixture is uniformly deposited onto a rope-like vapor generator substrate woven from threads and then dried. The basic structural unit of the rope consists of multiple loosely stranded threads woven and twisted from fibers, defined here as base strands. This structural configuration allows the aerosol matrix in the vapor generator to have better stability and delivery efficiency when assembled into a tobacco product for inhalation, providing a smoother inhalation experience, reducing throat irritation, and improving the bioavailability of nicotine. Example 7

[0097] Please refer to Figure 18, which is a schematic diagram of the structure of the rope-shaped, settled paper yarn smoke generator according to a preferred embodiment of this application. In this embodiment, the equivalent diameter of the smoke generator is 6.6 mm and the length is 12 mm. For ease of illustration, the partial structure is expanded and extended in the figure. It is formed by twisting a core rope 1 located on the inner side and seven outer layer strands 2 located on the outer side, with an aerosol matrix 3 uniformly deposited between them. The core rope 1 has an equivalent diameter of 3 mm, and six inner strands 102 are extended and wound around an inner core yarn 101 at a certain inclination and direction. The outer layer strands 2 have an equivalent diameter of 2 mm, and six outer strands 202 are extended and wound around an outer core yarn 201 at a certain inclination and in the opposite direction. Here, the core rope 1 and the outer layer strands 2 have the same structure, material, and size, and the inner core yarns (101, 201) and the outer strands (102, 202) also have the same configuration, that is, they are all paper yarns.

[0098] In some applications, multiple outer strands are twisted together, resulting in a finer equivalent diameter of the strands. Various sizes of paper yarns and braided structures are used in optimized combinations to increase porosity, thereby achieving a greater aerosol matrix carrying capacity while maintaining low suction resistance. A cross-sectional schematic diagram of this twisted rope configuration is shown in Figure 19, which is a schematic diagram of a structure with multiple strands on the outer side (where the aerosol matrix 3 is not shown). Its basic structure is as follows: On the outside of the central core rope 1, composed of twenty-three paper yarns, nine outer layer strands 2, each composed of 15 paper yarns, extend. In the space between the core rope 1 and the outer layer strands 2, there are nine middle layer strands 4, each composed of seven paper yarns. This rope configuration is a 9x15 + [9x7 + 1x23] structure. Example 8

[0099] As shown in Figure 20, which is a structural schematic diagram of a rope-shaped, settled paper yarn smoke generator according to a preferred embodiment of this application, the equivalent diameter is 6.6 mm and the length is 12 mm. For ease of illustration, the partial structure is expanded and extended in the figure. It is formed by twisting an inner core rope 1 and seven outer outer layer strands 2, with an aerosol matrix 3 uniformly deposited between them. An outer shaping layer 5 (only a portion is shown) wraps the rope into a slender column shape. The core rope 1 has an equivalent diameter of 3 mm, containing a magnetic metal wire inner core 101 with a diameter of 0.25 mm, made of 4J29 iron-nickel-based alloy, and six inner strands 102, which are extended and wound at a certain angle and direction. The equivalent diameter of the inner strands is 2 mm. The outer layer strands 2 are configured identically to the core rope 1, i.e., in the basic unit, the inner core wires (101, 201) are magnetic metal wires, and the strands (102, 202) are paper yarn.

[0100] This type of deposited paper yarn smoke generator is used to manufacture electromagnetic cigarette cartridges. When the electromagnetic cigarette cartridge is used in conjunction with an electromagnetic smoking device, the magnetic metal wires (101, 201) here function as sensors, coupling with the high-frequency alternating electromagnetic field generated in the smoking device. This rapidly increases the temperature through eddy current heating, then heats the adjacent aerosol matrix 3. Therefore, in this embodiment, the cigarette cartridge is a magnetic cartridge, and its heating element (sensor), the magnetic metal wires (101, 201), is discretely distributed at the inner center of each strand of the smoke generator. This arrangement offers advantages such as easy cutting during processing and uniform heating and carbonization during operation. This spatial configuration of the heating element can be called a multi-core dispersed heating mode within the rope.

[0101] Figure 21 is a schematic diagram of the structure of a magnetic metal wire wound in the intermediate layer of a sinker paper yarn smoke generator according to a preferred embodiment of this application. Referring to Figure 21, in some embodiments, the magnetic sensor is configured in various ways within the rope, such as the magnetic metal wire wound in the intermediate layer of the sinker paper yarn smoke generator shown in Figure 21 (where the aerosol matrix 3 is not shown). Its basic structure is: a core rope 1 located at the inner center, a first intermediate layer strand 4, a second intermediate layer strand 6, a magnetic metal wire 7 wound in a spiral manner around the outside of the second intermediate layer strand 6, and an outermost outer layer strand 2 (not shown in the figure). Here, the magnetic metal wire 7 is made of 4J29 iron-nickel-based alloy and is located inside the rope. The diameter of the solenoid it forms is approximately three-quarters of the diameter of the smoke generator rope. This spatial configuration of the heating element can be called an inner circumferential heating mode.

[0102] The material composition of magnetic metal wires (101, 201, 7) can be one of the following: a single metal, a single alloy, or a composite metal. Examples of single metal wires include iron wire, nickel wire, and cobalt wire; examples of single alloy wires include various magnetic stainless steels (such as ferritic stainless steel, martensitic stainless steel, and some cold-worked austenitic stainless steel), various soft magnetic alloys (such as permalloy, iron-based amorphous alloy, cobalt-based amorphous alloy, iron-based nanocrystalline alloy, iron-silicon-aluminum alloy, Invar alloy, constant expansion alloy), and Kovar alloy wire, etc.; composite metal wires contain two or more metal materials, of which at least one is magnetic material. Composite refers to the combination of two or more metal materials through rolling, electroplating, electroless plating, sputtering, welding, cladding, and coating.

[0103] To verify the magnetic behavior of the magnetic sensor during the temperature rise from room temperature to stable operating temperature in a smoking application, this disclosure tested the magnetization intensity M as a function of temperature (MT curve) and the magnetization rate of change dM / dT as a function of temperature T in the temperature range of 20-573℃ using the iron-nickel alloy 4J29 as the magnetic sensor, as shown in Figure 22. Figure 22 is a schematic diagram of the magnetization temperature curve of the magnetic sensor made of iron-nickel alloy 4J29. The curve shows that before 400℃, the sensor has a high and stable permeability, with a magnetization intensity as high as 50 emu / g. After 400℃, its permeability drops rapidly, reaching 0 at 450℃. Based on the peak and valley of dM / dT-T, its Curie temperature Tc can be determined to be 450℃. This magnetic behavior has multiple values.

[0104] Ensuring strong and stable coupling: The reasonable carbonization temperature of common aerosol matrices is around 350℃, while the temperature drop caused by taking a puff is usually in the range of 10-50℃. This magnetic sensor has a high and stable magnetic permeability before 400℃. Therefore, during the normal operation of the aerosol generation system (sensor + cartridge + device), it can always generate a strong and stable coupling with the high-frequency alternating electromagnetic field generated by the device.

[0105] As a reference for setting the stable operating temperature of the aerosol generation system: During the initial preheating stage of the system, continuous heating is carried out, causing the sensor to continuously rise to a temperature exceeding 400℃, for example, 410℃. The permeability of the sensor shows a significant inflection point at 400℃. The system finds the current inflection point Im corresponding to this temperature inflection point by observing the significant change in the supply current Idc in the circuit before and after this inflection point. Thus, the inflection point temperature Tm can be determined to be 400℃. If the expected stable operating temperature Tw is 350℃, then the stable operating current Iw corresponding to 350℃ is derived backward from this current inflection point, thereby setting the stable operating temperature Tw to 350℃.

[0106] Non-contact sensorless temperature measurement: Based on the above description, the sensor temperature corresponding to each working current Idc can be calibrated based on this magnetic change behavior and experimental data, so as to realize real-time temperature measurement without the need to use physical sensors in the system.

[0107] Exclusivity of cartridges and devices: As an ecosystem, when cartridges and devices are configured to match each other based on the parameters of the magnetic sensor, multiple target thresholds can be set to ensure that the combination of cartridges (including specific sensor configurations) and devices (including specific control configurations) is exclusive. That is, a particular type of cartridge can only function properly in a particular type of device, and similarly, a particular type of device can only use a particular type of cartridge. This achieves anti-counterfeiting identification and prevents safety incidents caused by the use of incorrect cartridges or devices.

[0108] Safety Protection: Two modes can be configured, including active protection, passive protection, or a combination of both. Active protection, for example, involves a significant decrease in sensor magnetism until it loses its magnetism when the sensor temperature abnormally exceeds 410°C. Consequently, the coupling strength decreases significantly until coupling is lost, meaning the power input is significantly reduced until it reaches the pipe wall. Passive protection, for example, involves setting a threshold temperature Ts (Idc) corresponding to a threshold temperature (Is) in a specific control configuration for the smoking device. When the sensor temperature exceeds the threshold temperature Ts, the system reduces or cuts off the power input. Example 9

[0109] This application provides a method for manufacturing a base paper yarn smoke generator. Figure 23 is a schematic flowchart of the method for manufacturing a base paper yarn smoke generator according to an embodiment of this application. Referring to Figure 23, the preparation method includes, but is not limited to, the following:

[0110] Pulping: First, the coniferous pine raw materials are cleaned and impurities are removed; then they are cut and crushed; next, they undergo high-temperature and high-pressure cooking, which is the key step in pulping. Through the high-temperature and high-pressure cooking process, the wood and fibers are broken down and cellulose is released. During this process, chemical agents are added to help separate the cellulose; then, rinsing and dewatering are carried out to remove residual chemical agents and impurities. These pretreatment processes make the plant fibers soft and remove impurities and pigments; finally, mechanical pulping is carried out, using mechanical force to separate the cellulose. When the fibers are subjected to mechanical force in water, they become filamentous and release more hydroxyl groups, forming more contact area and hydrogen bonds between the fibers, thus strengthening the bond between the fibers and giving the subsequent base paper higher physical strength.

[0111] Pulp preparation: This involves adjusting the composition of the above pulp, including blending, screening, and grinding processes; various papermaking additives are added during this process. The purpose of preparation is to give the pulp the desired properties.

[0112] Papermaking: First, the pulp is filtered and pressed to remove larger impurities and particles, and some water is removed through squeezing and dewatering. Then, it is conveyed and evenly coated onto a moving conveyor belt of a paper machine. Next, through casting, filtration, and drying steps, the pulp gradually forms a fibrous network structure. Simultaneously, mechanical pressure is used to squeeze out water from the pulp, making the fibers more compact. The final product is a base paper with an average thickness of approximately 0.035 mm.

[0113] Spinning: First, the raw paper is cut into narrow strips with a width of 2mm and wound into paper strip coils. Then, it is put on a spinning machine and coated with preservative and wet strength agent solutions. Then, it is spun to form paper yarn. The equal diameter of the paper yarn is about 0.05mm.

[0114] Rope making: Multiple strands of paper yarn are initially twisted and then re-twisted to form fine threads. These threads are then interwoven and twisted together using a rope-making machine to form a coarse paper yarn rope with an equivalent diameter of approximately 6.4 mm.

[0115] Precipitation: The aerosol matrix was deposited onto the paper yarn rope by immersion and then dried to prepare the precipitated rope. The aerosol matrix was in a liquid state (the basic components are as described in the previous examples and will not be repeated here). The immersion time was 1 hour, and after removal, it was dried at 90°C for 3 hours.

[0116] Cutting: Wrap and shape the base coarse rope film or paper, and then cut it into small segments of base paper yarn smoke body, with a length of 12mm.

[0117] Figure 24 is a schematic diagram of the structure of the deposited paper yarn smoke generator of the preferred embodiment of this application; Figure 25 is a schematic diagram of the structure of the deposited paper yarn smoke generator mixed with the sensor wire (88a) of the preferred embodiment of this application; Figure 26 is a schematic diagram of the deposited paper yarn smoke generator of the preferred embodiment of this application after soaking in the aerosol matrix at 100X magnification under a scanning electron microscope; Figure 27 is a schematic diagram of the deposited paper yarn smoke generator (including the sensor wire (88a)) of the preferred embodiment of this application after soaking in the aerosol matrix at 100X magnification under a scanning electron microscope. Please refer to Figures 24 to 27 together. After soaking in the aerosol matrix, cut off a section with scissors and look at the local scanning electron microscope image at 100X magnification of the cut surface as follows (the area containing the sensor is not shown). Here, the shape of individual strands of yarn cannot be seen.

[0118] In this example, during the manufacturing process of the smoke-generating body, the aerosol matrix 3 is added to the paper yarn by soaking after the yarn is tied. This method is called back-end matrix addition.

[0119] In this embodiment, the aerosol matrix 3 can also be deposited into the base paper and dried after the base paper is formed by various suitable methods, which is called front-end basting; or it can be mixed with the papermaking pulp during the pulping process and deposited into non-tobacco plant fibers, which is called mid-end basting.

[0120] Regardless of the order of addition, various suitable addition methods may include deposition such as spraying, brushing, rolling, and atomization. The ultimate goal is to leave the aerosol matrix 3 in the gaps of the loose structure of the paper yarn and adhere it to the surface.

[0121] The basic raw material used in this disclosure for papermaking is plant fiber, and the types that can be selected may include one or more of grasses, bast fibers, or seed fibers. Suitable woods are numerous, such as coniferous woods (e.g., larch, red pine, Masson pine, fir, Yunnan pine, and Scots pine) and broadleaf woods (e.g., poplar, birch, and eucalyptus). Grasses may include: reeds, bamboo, awned stalks, wheat straw, rice straw, dragon's beard grass, sorghum stalks, and bagasse. Bast fibers may include: flax, jute, kenaf, sesame, kenaf, sandalwood bark, mulberry bark, and cotton stalk bark. Seed fibers include, for example, cotton, cotton linters, and cotton rags.

[0122] Various additives used in papermaking include a wide range of types, such as sheet bleaching agents, deinking agents, defoamers, rosin gum, filter aids (polyaluminum chloride), cationic starch and amphoteric starch, cationic polyamide resin (PAE), neutral sizing agent (AKD), alkyl ketone dimer, alkenyl succinic anhydride (ASA), polyacrylamide (PAM), polyethylene oxide (PEO), phenolic resin (PR), polyvinyl alcohol (PVA), carboxymethyl cellulose (CMC), surface sizing agent (PVA), etc.

[0123] In practical applications, the precipitated paper yarn smoke generator of this disclosure is used in cigarettes and, together with components such as filters, cooling devices, bottom plugs, and cigarette paper, is processed into a heated tobacco cartridge through processes such as lamination and splicing. When the tobacco cartridge is used for smoking, the paper yarn is heated by a nearby heating element. The operating temperature of the heating element is between 300-350℃, which bakes and carbonizes the aerosol matrix 3 in the paper yarn, releasing aerosols for the user to inhale.

[0124] This application discloses a deposited paper yarn smoke generator and its manufacturing method. The smoke generator is used to prepare cigarette cartridges, and its basic structural unit is paper yarn containing an aerosol matrix. The aerosol matrix is ​​deposited into the paper matrix fibers during the papermaking process, spinning process, or after rope making, and then prepared into a smoke generator with a loose rope-like structure through methods such as spinning, weaving, and wrapping. This smoke generator structure and manufacturing method have the advantages of high porosity, long-lasting fragrance retention, and simple production process.

[0125] In related technologies, HNB electromagnetic heating has two modes. First, it involves central heating from within the cartridge, where the magnetic heating element is a metal sheet embedded in the axial region of the aerosol matrix section within the cartridge. This method suffers from drawbacks such as complex embedding processes, difficult cutting, overly concentrated heating element configuration, and limited thermal contact area. Second, it involves circumferential heating from the outside of the cartridge, where the magnetic heating element is a metal tube integrated into the inner wall of the cartridge compartment. This method suffers from defects such as slow heat conduction, inaccurate temperature measurement and control, a tendency to produce a pasty taste, and a blackening of the cartridge's appearance after use.

[0126] This application provides embodiments of composite metal wires, methods for manufacturing the same, and e-cigarette cartridges containing the same.

[0127] It should be noted that this embodiment only schematically shows metal wires composed of two or three metal materials. In some other embodiments, multiple metal materials can be used, such as 2 to 6 metal materials, to form a multi-layer composite structure. The detailed features of this part are within the understanding of those skilled in the art, and will not be listed and described in detail here. Example 10

[0128] Please refer to Figures 28 and 29 together. Figure 28 is a schematic diagram of the fabrication process of the composite metal wire according to a preferred embodiment of this application; Figure 29 is a schematic flowchart of the fabrication method of the composite metal wire according to a preferred embodiment of this application, wherein the fabrication method includes, but is not limited to, the following:

[0129] Surface treatment: The first magnetic metal material 1, iron-nickel based glass sealing alloy 4J42 thin strip (0.6mm thick as an example), and the second magnetic metal material 2, stainless steel 410 thick strip (1.8mm thick as an example) are selected. The two strips are annealed in a continuous atmosphere annealing furnace at 930℃. Next, their surfaces are polished, then pickled to remove oil and foreign matter, and to make the surface smooth and flat. Finally, they are dried and wound up.

[0130] In some embodiments, in the iron-nickel based alloy of the first magnetic metal material 1, the weight percentage of nickel is between 35-88 wt%, and the weight percentage of iron is between 12-65 wt%.

[0131] In some embodiments, the Curie temperature of the first magnetic metal material is between 300-550°C, and the Curie temperature of the second magnetic metal material is between 650-1200°C. The first magnetic metal material is one of elemental nickel, an iron-nickel based alloy, or a neodymium-iron-boron alloy, and the second magnetic metal material is one of elemental iron, elemental cobalt, an iron-chromium-cobalt based alloy, an iron-chromium-aluminum based alloy, or magnetic stainless steel. In the neodymium-iron-boron based alloy, the weight percentage of neodymium is 15-28 wt%, the percentage of iron is 70-80 wt%, and the percentage of boron is 1-8 wt%.

[0132] Composite: The above-mentioned thin strips are laminated using a lamination process, resulting in a composite strip with a final thickness of approximately 1.2 mm. This allows for physical contact between the two materials, with deformation and cracking at the contact surfaces to achieve mechanical interlocking. Annealing (specifically, diffusion annealing at 650-950℃ in a protective atmosphere or vacuum environment) promotes interdiffusion between iron, nickel, cobalt, chromium, and silicon atoms, further enhancing the bonding strength. Alternatively, in some other embodiments, one or more processes such as rolling, spraying, cladding, welding, electroplating, electroless plating, or coating can be used to composite 2-6 metal materials together to form a composite strip.

[0133] Slitting: The composite strip is cut into composite wire blanks with a width of 1.5mm, i.e., a cross-section of 1.5mm x 1.2mm. Generally, the length-to-width ratio is no greater than 3.

[0134] It should be noted that the dimensional parameters in this embodiment are only an example for illustration. Those skilled in the art can set the dimensional parameters according to their needs, and no specific limitations are made here.

[0135] Chamfering: The composite wire blank is trimmed with a cutting tool to form rounded corners, in order to reduce the risk of breakage during subsequent processing.

[0136] Wire drawing: With the assistance of the mold, the composite wire blank is drawn multiple times by mechanical force to prepare the composite metal wire. Its cross-section is roughly circular with an equivalent diameter of 0.3 mm. The final product is annealed for 2 hours under vacuum at 800℃ (the temperature range can be 600-900℃) to make it soft, which is convenient for subsequent winding and cutting.

[0137] Figure 30 is an enlarged schematic diagram of the composite metal wire at point A in Figure 28. Referring to Figure 30, the binary composite metal wire in this embodiment is a solid wire with a roughly circular cross-section and a diameter of approximately 0.3 mm. In one embodiment, it can be made by combining and processing a first magnetic metal material 1, iron-nickel-based glass-sealed alloy 4J42 (Curie temperature approximately 360°C), and a second magnetic metal material 2, stainless steel 410 (Curie temperature approximately 700°C). This embodiment only uses these two materials as examples; in some other embodiments, other magnetic materials may also be used.

[0138] In this embodiment, the cross-sectional area ratio of the 4J42 portion to the 410 stainless steel portion of the composite metal wire is approximately 1:3. At the interface between the two, there is a thin layer (not shown in the figure) formed by inter-atomic diffusion between the metal atoms, with a thickness of less than 0.001 mm, which tightly bonds the two together. The composite metal wire is in an annealed soft state, making it easy to deform and cut. Example 11

[0139] Figure 31 is a schematic diagram of the fabrication process of the composite metal wire according to a preferred embodiment of this application; Figure 32 is a flowchart of the fabrication method of the composite metal wire according to a preferred embodiment of this application. Please refer to Figures 31 and 32 together. This application provides a method for fabricating composite metal wires, which includes, but is not limited to, the following:

[0140] Surface treatment: Mechanical grinding and / or chemical treatment of the substrate surface to be laminated to remove oil and foreign matter, and to make the surface clean, flat and smooth;

[0141] In this embodiment, the first magnetic metal material 1 can be nickel, using a thick round bar with a diameter of 10mm, or as shown in Figure 32, a plate with a certain thickness can be selected, cut into rectangular strips, and then formed into a thin bar with a cross-sectional diameter of about 2mm through multiple wire drawing dies.

[0142] In some implementations, the second magnetic metal material 2 can be electrical pure iron DT4. A thick strip with a thickness of 1.6 mm is used. The surfaces of the two raw materials are polished, then pickled to remove oil and foreign matter, and to make the surface smooth.

[0143] Rod making (taking the selection of a coarse rod as an example): The first magnetic metal material 1 nickel coarse round rod is pulled out of the die hole of the wire drawing die under the action of drawing force by the clamp, and the process is repeated many times to produce a small cross-section metal rod. The cross-sectional diameter of the nickel rod is 2mm.

[0144] Tube making: The second metal layer magnetic material 2 iron thick strip is rolled and joined by rolling and pressing with rollers, then welded into a round tube, and then drawn into a hollow iron tube with an inner diameter slightly larger than 2mm.

[0145] Composite: The above-mentioned nickel rod is nested with an iron tube, then drawn, and then annealed to make the nickel rod and iron tube tightly bonded. Finally, it is repeatedly extruded and drawn to prepare a nickel-iron composite rod.

[0146] Wire drawing: With the aid of a mold, mechanical force is used to draw the nickel-iron composite rod to produce a composite metal wire with a diameter of 0.4 mm and a roughly circular cross-section.

[0147] Electroplating: Finally, an electroplating process is used to deposit a chromium protective coating with a thickness of about 0.0015 mm on the surface of the composite metal wire to prevent the iron from rusting.

[0148] Figure 33 is an enlarged schematic diagram of the composite metal wire at point B in Figure 31. Referring to Figure 33, the composite metal wire in this embodiment is a ternary composite metal wire configuration. It is a solid wire with a cross-section resembling the annual ring structure of a tree. The outer perimeter is roughly circular with a diameter of approximately 0.403 mm. It is made by combining and processing a first magnetic metal material 1, nickel elemental metal N6 (Curie temperature approximately 354°C), and a second magnetic metal material 2, iron elemental metal electrical pure iron DT4 (Curie temperature approximately 770°C). Furthermore, a third metal material 3, chromium plating, is applied to the outermost surface. The first magnetic metal material 1 can be a magnetic material such as nickel and is rod-shaped, serving as the metal core; the second magnetic metal material 2 can be a magnetic material such as iron and is ring-shaped, serving as the metal sleeve; the third metal material 3 can be a magnetic material such as chromium and is ring-shaped, serving as the outer coating. Example 12

[0149] Figure 34 is a schematic diagram of the fabrication process of the composite metal wire according to a preferred embodiment of this application. Referring to Figure 34, this application provides another method for preparing the composite metal wire, which includes, but is not limited to, the following:

[0150] First, a composite strip is formed by laminating a first magnetic metal material 1, precision alloy 4J34 thin strip, with a second magnetic metal material 2, stainless steel 430 thin strip. Then, the composite strip is prepared into a composite tube with an inner diameter of approximately 0.4 mm. Finally, the composite tube is repeatedly drawn to prepare a capillary composite metal hollow wire with an outer diameter of 0.6 mm, a wall thickness of 0.1 mm, and an inner diameter of 0.4 mm.

[0151] Figure 35 is an enlarged schematic diagram of the composite metal wire at point C in Figure 34. Referring to Figure 35, the metal wire in this embodiment is a binary composite metal wire configuration, which is a hollow wire with a hollow cross-section. The outer perimeter is approximately circular with a diameter of about 0.6 mm, and the diameter of the central hole is 0.4 mm. It is made of a first magnetic metal material 1, an iron-nickel-cobalt alloy 4J34 precision alloy (Curie temperature about 470°C), and a second magnetic metal material 2, stainless steel 430 (Curie temperature about 700°C), which are then combined and processed. Among them, the first magnetic metal material 1, which has a ring structure, is located in the outer layer, and the second magnetic metal material 2, which has a ring structure, is located in the inner layer, and the two are closely connected.

[0152] Figure 36 is a structural schematic diagram of a preferred embodiment of this application containing composite metal wire. Referring to Figure 36, this application also provides a cartridge containing the composite metal wire from the aforementioned embodiment. It should be noted that the composite metal wire in this embodiment can be used in electromagnetic cartridges of any structure. This embodiment only uses one cartridge structure as an example for illustration.

[0153] In this embodiment, the cartridge is a slender cylinder with an outer diameter of approximately 7 mm and has a three-segment structure: the first segment is the matrix segment, approximately 16 mm long, containing 9 (or more, such as 3-100) composite metal wires from the aforementioned embodiment (using a composite metal wire made of two materials (first magnetic metal material 1 and second magnetic metal material 2) as an example), a paste-like aerosol matrix 4, and a shaping layer 5 of aluminum foil wrapped around the outer surface; the second segment is the cooling segment 6, which can be 15 mm long and mainly composed of polylactic acid to form a loose and porous structure; the third segment is the filter segment 7, which can be 14 mm long and mainly composed of cellulose acetate. The above three cylindrical segments are arranged coaxially in sequence and are wound and bonded in parallel by the outer cigarette paper 8 to form the finished cartridge. When the cartridge is used in an electromagnetic smoking device, the small segment of the composite metal wire acts as a sensor, coupling with a high-frequency alternating electromagnetic field, generating eddy currents that heat and carbonize the adjacent aerosol matrix, releasing aerosol.

[0154] The composite metal wire, its manufacturing method, and the tobacco cartridge containing it described in this embodiment are suitable for applications in electromagnetic induction heating non-combustible tobacco products. The composite metal wire has a circular or nearly circular cross-section and contains 2-6 types of metallic materials, of which at least two are magnetic. The manufacturing process of the composite metal wire includes: surface treatment, lamination, slitting, chamfering, and drawing; or surface treatment, rod making, tube making, lamination, and drawing. The tobacco cartridge contains a filter tip, a cooling component, an aerosol matrix, and several short segments of the composite metal wire, possessing the characteristic of electromagnetic eddy current heating. During the inhalation process of the tobacco cartridge, the composite metal wire provides inductive heating and magnetic signal feedback, and can assist the smoking device in achieving anti-counterfeiting identification and temperature measurement of the tobacco cartridge.

[0155] Figure 37 is a schematic diagram of the structure of a smoke-generating device according to a preferred embodiment of this application. Referring to Figure 37, this application embodiment also provides a smoke-generating device, which includes a smoke-generating device 410 and a tobacco cartridge 420. The tobacco cartridge can be loaded into the smoke-generating device 410 and heated by the smoke-generating device 410. The tobacco cartridge 420 can be an electromagnetic tobacco cartridge as described in the previous embodiment or a different tobacco cartridge. Correspondingly, the smoke-generating device 410 can be a structure with an electromagnetic heating coil or a heating wire, heating plate, etc., that can be inserted into the tobacco cartridge 420. The detailed structural features of the smoke-generating device 410 are beyond the understanding of those skilled in the art and will not be described here.

[0156] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0157] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A smoke-generating body, wherein, It includes multiple interconnected wires extending in a predetermined direction, each wire containing a smoke-generating medium, and a smoke channel is formed between adjacent wires.

2. The smoke-generating body according to claim 1, wherein, The material of the thread is any one or more of natural fibers or chemical fibers.

3. The smoke-generating body according to claim 1, wherein, It is arranged parallel to the line or in a stranded rope structure.

4. The smoke-generating body according to claim 1, wherein, The smoke-generating body also includes receptor strands, the extension direction of which is the same as the extension direction of the wire body.

5. The smoke-generating body according to claim 4, wherein, The receptor strands and the main body of the wire form a stranded rope structure.

6. A type of smoke cartridge, wherein, The e-cigarette cartridge includes a package, a filter, a cooling component, and a smoke generator. The filter, the cooling component, and the smoke generator are arranged sequentially along the axial direction and are wrapped inside the package. The smoke generator includes multiple lines that are in contact with each other and extend along a preset direction. Each line contains a smoke-generating medium, and a smoke channel is formed between adjacent lines.

7. The smoke cartridge according to claim 6, wherein, The material of the thread is any one or more of natural fibers or chemical fibers.

8. The e-cigarette cartridge according to claim 6, wherein, It is arranged parallel to the line or in a stranded rope structure.

9. The e-cigarette cartridge according to claim 6, wherein, The smoke-generating body also includes receptor strands, the extension direction of which is the same as the extension direction of the wire body.

10. The smoke-generating body according to claim 9, wherein, The receptor strands and the main body of the wire form a stranded rope structure.

11. A method for preparing a smoke-generating body, wherein, The preparation method includes: A wire body is prepared; wherein, the wire body contains a smoke-generating medium; Multiple lines are wrapped with a wrapping layer to form a smoke-generating body; wherein, the smoke-generating body includes multiple lines that are in contact with each other and extend along a predetermined direction, the lines contain a smoke-generating medium, and a smoke channel is formed between adjacent lines.

12. The preparation method according to claim 11, wherein, The material of the thread is any one or more of natural fibers or chemical fibers.

13. The preparation method according to claim 11, wherein, It is arranged parallel to the line or in a stranded rope structure.

14. The preparation method according to claim 11, wherein, The smoke-generating body also includes receptor strands, the extension direction of which is the same as the extension direction of the wire body.

15. The preparation method according to claim 14, wherein, The preparation method further includes: preparing receptor strands, and wrapping the receptor strands together with the multiple strands using a wrapping layer to form a smoke-generating body.

16. The preparation method according to claim 14, wherein, The receptor strands and the main body of the wire form a stranded rope structure.

17. A method for preparing a cigarette cartridge, wherein, include: The filter tip, cooling component, and smoke generator are joined together from the outside using a wrapping component to form a composite, thereby creating a smoke cartridge. The smoke generator consists of multiple interconnected wires extending in a predetermined direction. Each wire contains a smoke-generating medium, and a smoke channel is formed between adjacent wires.

18. The method for preparing a cigarette cartridge according to claim 17, wherein, The material of the thread is any one or more of natural fibers or chemical fibers.

19. The method for preparing a cigarette cartridge according to claim 17, wherein, It is arranged parallel to the line or in a stranded rope structure.

20. The method for preparing a cigarette cartridge according to claim 17, wherein, The smoke-generating body also includes receptor strands, the extension direction of which is the same as the extension direction of the wire body.

21. The method for preparing a cigarette cartridge according to claim 20, wherein, The receptor strands and the main body of the wire form a stranded rope structure.

22. A smoke-generating device, wherein, The smoke-generating device includes a smoke-generating device and a smoke cartridge. The smoke cartridge includes a package, a filter, a cooling component, and a smoke-generating body. The filter, the cooling component, and the smoke-generating body are arranged sequentially along the axial direction and are wrapped inside the package. The smoke-generating body includes multiple lines that are in contact with each other and extend along a preset direction. The lines contain a smoke-generating medium, and a smoke channel is formed between adjacent lines.

23. The method for preparing a cigarette cartridge according to claim 22, wherein, The material of the thread is any one or more of natural fibers or chemical fibers.

24. The method for preparing a cigarette cartridge according to claim 22, wherein, It is arranged parallel to the line or in a stranded rope structure.

25. The method for preparing a cigarette cartridge according to claim 22, wherein, The smoke-generating body also includes receptor strands, the extension direction of which is the same as the extension direction of the wire body.

26. The method for preparing a cigarette cartridge according to claim 25, wherein, The receptor strands and the main body of the wire form a stranded rope structure.

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