Consumable suitable for aerosol delivery device, and aerosol supply system

Abstract

Disclosed in the present disclosure are a consumable suitable for an aerosol delivery device, and an aerosol supply system. The consumable comprises an inner tubular core having a hollow cavity and an outer tubular core sleeved on the outer side of the inner tubular core, wherein the inner tubular core comprises a first aerosol-generating substrate, and the outer tubular core comprises a second aerosol-generating substrate. According to the present disclosure, the consumable adopts a design of a double-layer annular cylindrical structure having a central cavity, and comprises an inner tubular core and an outer tubular core sleeved on the outer side of the inner tubular core. An inner core is configured as a tubular structure, and the central cavity configured to allow the insertion of a heating element is provided in the inner tubular core, thereby avoiding the problem that the vaping experience is affected due to aerosol generation and release being affected by the deformation of the consumable caused by the insertion of the heating element.

Description

Consumables and aerosol supply systems suitable for aerosol delivery devices

[0001] Cross-references to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 202510343454.7, filed on March 21, 2025, entitled "Consumables and Aerosol Supply System Suitable for Aerosol Delivery Devices", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of aerosol generation technology, and more specifically, to a consumable and an aerosol supply system suitable for an aerosol delivery device. Background Technology

[0004] Cigarettes, cigars, and other consumable tobacco products pose significant health risks to users and those around them due to the presence of harmful chemicals such as carbon monoxide in the smoke produced by burning tobacco. Therefore, they are gradually being replaced by heated tobacco products. Heated tobacco products (HNB) are a newer and relatively less harmful tobacco alternative. They use an aerosol delivery device to heat non-combustible consumables, causing them to release their contained aerosol-generating material without combustion. This aerosol-generating material mixes with air to create an aerosol for the user to inhale.

[0005] Currently, in the market, the matrix of common non-combustible consumables is usually formed by agglomerating the matrix in the form of strips or sheets to form an aerosol generating matrix. In order to ensure that the matrix can be fully heated, needle-shaped or sheet-shaped heating elements are usually pre-inserted in the center of the agglomerated matrix. Through the heating effect of the heating elements, the matrix around it releases aerosol generating materials and forms an aerosol.

[0006] However, existing aerosol matrix aggregation molding technologies all employ solid structures. When a heating element is inserted, friction or compression during insertion often causes displacement of the adjacent strip or sheet-like matrix components. This displacement can lead to the detachment of the central strip or sheet component of the aerosol-generating matrix, preventing it from receiving heat radiation from the heating element and thus hindering the heating and aerosol release of this portion of the matrix. This not only affects the overall quality of the aerosol-generated product, such as reducing the yield or concentration stability of the aerosol, but may also result in a poor inhalation experience for consumers. Summary of the Invention

[0007] In view of this, the purpose of this disclosure is to provide a consumable and an aerosol supply system suitable for an aerosol delivery device, so as to solve the problem that the direct insertion of the heating element into the solid consumable causes some components in the consumable to fall out, affecting the aerosol generation and release concentration, and thus affecting the inhalation experience.

[0008] This disclosure is implemented as follows:

[0009] In a first aspect, this disclosure provides a consumable suitable for an aerosol delivery device, comprising: an inner core having a hollow cavity and an outer core sleeved outside the inner core, wherein the inner core includes a first aerosol generating substrate and the outer core includes a second aerosol generating substrate.

[0010] In an optional embodiment, both the first aerosol generating substrate and the second aerosol generating substrate include an aerosol generating agent, wherein the content of the aerosol generating agent in the first aerosol generating substrate is less than the content of the aerosol generating agent in the second aerosol generating substrate.

[0011] And / or, the aerosol generating agent is selected from at least one of polyol compounds and polysaccharide alcohol compounds;

[0012] And / or, the mass fraction of the aerosol generating agent in the first aerosol generating substrate is 5-32%, preferably, the mass fraction of the aerosol generating agent in the first aerosol generating substrate is 16-21%;

[0013] And / or, the mass fraction of the aerosol generating agent in the second aerosol generating substrate is 14-36%, preferably, the mass fraction of the aerosol generating agent in the second aerosol generating substrate is 22-28%.

[0014] In an optional embodiment, the inner core is formed by rolling the first aerosol-generating substrate.

[0015] The outer core is formed by rolling the second aerosol generating substrate, or by slicing the outer core and then stacking it together.

[0016] In an optional embodiment, the first aerosol generating substrate is selected from reconstituted tobacco or a support carrier loaded with an aerosol generating agent.

[0017] And / or, the second aerosol generating substrate is selected from reconstituted tobacco.

[0018] In an optional embodiment, the inner diameter of the inner core is 1.0-4.4 mm;

[0019] And / or, the ratio of the wall thickness of the inner core to the wall thickness of the outer core is 0.05-0.35;

[0020] And / or, the ratio of the mass of the inner core to the mass of the outer core is 0.05-0.5.

[0021] In an optional embodiment, a wrapping material layer is further included, which is disposed on the side of the outer core away from the inner core and in contact with the outer core;

[0022] Preferably, the material of the wrapping layer is at least one of single-layer paper, composite aluminum foil, glass, and polymer.

[0023] In an optional embodiment, the axial suction resistance of the consumable is less than 3.0 Pa / mm.

[0024] In an optional embodiment, the transverse tensile strength of the first aerosol generating substrate is ≥200 N / m; preferably, the transverse tensile strength of the first aerosol generating substrate is ≥1000 N / m.

[0025] And / or, the longitudinal tensile strength of the first aerosol generating substrate is ≥800 N / m; preferably, the longitudinal tensile strength of the first aerosol generating substrate is ≥1500 N / m;

[0026] And / or, the bending stiffness of the first aerosol generating substrate is ≥0.15mN*m; preferably, the bending stiffness of the first aerosol generating substrate is ≥0.25mN*m.

[0027] In an optional embodiment, the transverse tensile strength of the second aerosol generating substrate is less than that of the first aerosol generating substrate; preferably, the transverse tensile strength of the second aerosol generating substrate is ≥50 N / m; more preferably, the transverse tensile strength of the second aerosol generating substrate is ≥100 N / m.

[0028] And / or, the longitudinal tensile strength of the second aerosol generating substrate is less than the longitudinal tensile strength of the first aerosol generating substrate; preferably, the longitudinal tensile strength of the second aerosol generating substrate is ≥200 N / m; more preferably, the longitudinal tensile strength of the second aerosol generating substrate is ≥300 N / m;

[0029] And / or, the bending stiffness of the second aerosol generating substrate is less than that of the first aerosol generating substrate; preferably, the bending stiffness of the second aerosol generating substrate is ≥0.03mN*m; more preferably, the bending stiffness of the second aerosol generating substrate is ≥0.07mN*m.

[0030] In an optional embodiment, the total mass fraction of water-soluble sugars in the first aerosol generating substrate is 0.1-5.0%;

[0031] And / or, the total mass fraction of water-soluble sugars in the first aerosol generating substrate is less than the total mass fraction of water-soluble sugars in the second aerosol generating substrate; and / or, the total mass fraction of water-soluble sugars in the second aerosol generating substrate is 6-15%; preferably, the total mass fraction of water-soluble sugars in the second aerosol generating substrate is 6.5-12.5%.

[0032] In an optional embodiment, the first aerosol generating substrate further includes a specific heat capacity enhancing agent, which includes at least one of magnesium oxide, aluminum oxide, zirconium oxide, silicon carbide, silicon dioxide, and silicates.

[0033] And / or, the mass fraction of the specific heat capacity enhancer in the first aerosol generating substrate is 0.05%-5.0%.

[0034] In a second aspect, this disclosure provides an aerosol supply system, including an aerosol delivery device and a consumable suitable for the aerosol delivery device as described in any of the foregoing embodiments, wherein when the consumable is used with the aerosol delivery device, the aerosol delivery device is configured to heat the consumable to generate an aerosol from the consumable.

[0035] In an optional embodiment, the aerosol delivery device includes a central heater, which is configured to be at least partially located within the hollow cavity of the consumable when the consumable is used with the aerosol delivery device.

[0036] In an optional embodiment, a gap is provided between the central heater and the inner wall of the inner tube core; preferably, the average width of the gap is 0.025-0.5 mm.

[0037] This disclosure has the following beneficial effects:

[0038] The consumable in this disclosure adopts a binary ring-shaped structure design with a hollow cavity, including an inner core and an outer core sleeved outside the inner core. By setting the inner core as a tube, the hollow cavity in the inner core that is suitable for the insertion of the heating element can avoid the problems of consumable deformation, aerosol generation and release, and thus the impact on the suction experience caused by the insertion of the heating element. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 is a schematic diagram of the structure of the consumables in this disclosure;

[0041] Figure 2 is a schematic diagram of the structure of the aerosol-generated product in this disclosure.

[0042] Illustration: 100 - Consumable; 110 - Inner core; 120 - Outer core; 130 - Coating material layer; 200 - Filter tip; 300 - Support component; 400 - Plug. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions in the embodiments of this disclosure will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0044] This disclosure provides a consumable 100 suitable for an aerosol delivery device, comprising: an inner core 110 having a hollow cavity and an outer core 120 sleeved outside the inner core 110, wherein the inner core 110 includes a first aerosol generating substrate and the outer core 120 includes a second aerosol generating substrate.

[0045] In this disclosure, the consumable 100 adopts a binary ring-shaped structure design with a central cavity, including an inner core 110 and an outer core 120 sleeved outside the inner core 110. By setting the inner core as a tube, the hollow cavity provided in the inner core 110, suitable for the insertion of the heating element, can avoid the problem of deformation of the consumable 100, affecting aerosol generation and release, and thus affecting the inhalation experience when the heating element is inserted. Furthermore, by making the inner and outer cores respectively include an aerosol generating substrate, both the inner and outer cores can generate aerosols when the consumable is heated, thereby meeting the user's inhalation needs. In particular, when the inner core is set to include an aerosol generating substrate, when used with a center-heated aerosol delivery device, the aerosol delivery device first heats the inner core, which is closer to its heating element, and the inner core can release aerosols more quickly, thereby quickly meeting the user's inhalation needs in the early stages (the first few puffs).

[0046] In some embodiments, both the first aerosol generating substrate and the second aerosol generating substrate include an aerosol generating agent, wherein the content of the aerosol generating agent in the first aerosol generating substrate is less than the content of the aerosol generating agent in the second aerosol generating substrate.

[0047] In other embodiments, the aerosol generating agent may be selected from at least one of polyol compounds and polysaccharide alcohol compounds; for example, the polyol compound may be selected from at least one of glycerol, propylene glycol, 1,4-butanediol and pentanediol, and the polysaccharide alcohol compound may be selected from at least one of sorbitol and xylitol.

[0048] In some embodiments, the mass fraction of the aerosol generating agent in the first aerosol generating substrate can be 5-32%. In other embodiments, the mass fraction of the aerosol generating agent in the first aerosol generating substrate can be 16-21%.

[0049] In some embodiments, the mass fraction of the aerosol generating agent in the second aerosol generating substrate can be 14-36%. In other embodiments, the mass fraction of the aerosol generating agent in the second aerosol generating substrate can be 22-28%.

[0050] By keeping the aerosol generating agent content in the first aerosol generating substrate relatively low, the aerosol generating agent content in the inner core 110 is also relatively low. This helps ensure that the inner core 110 has relatively high bending stiffness and tensile strength, thereby more effectively supporting the outer core disposed on its outer side and improving the stability of the consumable 100. Furthermore, different aerosol generating agent contents allow the inner and outer cores to generate aerosols of different concentrations and compositions during heating, meeting the aerosol needs of different consumers.

[0051] In some embodiments, the inner core 110 is formed by winding a first aerosol-generating substrate, and the outer core 120 is formed by winding a second aerosol-generating substrate. The inner core 110 can be formed by winding a single layer or multiple layers of sheet-like first aerosol-generating substrate, and the outer core 120 can also be formed by winding a single layer or multiple layers of sheet-like first aerosol-generating substrate. Thus, both the inner and outer cores can be formed by winding aerosol-generating substrates, thereby simplifying the manufacturing process of consumables. Furthermore, this structure helps maintain the performance consistency of the inner ring-shaped consumable, enabling uniform aerosol generation during heating.

[0052] In other embodiments, the inner core 110 can be formed by rolling a first aerosol generating substrate, and the outer core 120 can be formed by slitting and stacking a second aerosol generating substrate. For example, the second aerosol generating substrate is a large sheet structure (sheet with a relatively large area), which can be slitted into strips, small sheets (sheets with a relatively small area, such as fragments), granules, etc., and then stacked to form the outer core 120. The slitted substrate can be wrapped with a protective layer to form a stable, integral outer core 120, and the slitted substrate can also be bonded with an adhesive to form a stable, integral outer core 120. In this case, the manufacturing process can be simplified by rolling the inner core 110 through a sheet substrate. By cutting the outer core 120 into smaller unit structures (e.g., aerosol generating strips) through the sheet substrate and then gathering them together (e.g., orderly stacking), the porosity of the formed outer core 120 can be increased, which is more conducive to the rapid delivery of the aerosol generated when the consumable is heated to the user, thereby improving the user's suction experience.

[0053] In some embodiments, the first aerosol-generating substrate is selected from reconstituted tobacco leaves or a support carrier loaded with an aerosol-generating agent. In other embodiments, the second aerosol-generating substrate is selected from reconstituted tobacco leaves. The reconstituted tobacco leaves can be sheets containing an aerosol-generating agent, such as reconstituted tobacco sheets or reconstituted non-tobacco sheets, and the support carrier can be forming paper, tipping paper, etc.

[0054] The inner core, including the first aerosol generating substrate, can increase the porosity of the inner core. In particular, when the first aerosol generating substrate is a support carrier loaded with an aerosol generating agent, the aerosol generating agent volatilizes during heating, which promotes the formation of a more developed pore structure in the support carrier. This facilitates the transfer of the generated aerosol to the user through the pores of the inner core and also improves the efficiency of heat conduction, making it easier to quickly transfer the heat generated by the heating element to the outer core to heat the outer core. This causes the aerosol generating substrate included in the outer core to generate aerosol, thereby more quickly and efficiently meeting the user's later (last few) suction needs. Furthermore, the aerosol generated by the outer core can also be transferred to the user through the pores formed by the inner core, further improving the aerosol transfer rate and enhancing the user's suction experience.

[0055] In some embodiments, the inner diameter of the inner core 110 is 1.0-4.4 mm; wherein, the inner diameter of the inner core 110 is the diameter of the hollow cavity. The inner core 110 should be large enough (i.e., the diameter of the hollow cavity should be large enough) so that the central heater of the aerosol delivery device can be easily inserted into the hollow cavity of the consumable, or easily removed from the hollow cavity of the consumable. This will prevent physical contact between the inner core of the consumable and the central heater of the aerosol delivery device, or reduce the frictional force when they do come into contact. This helps avoid adverse effects such as uneven heating and local overheating caused by direct contact, thus ensuring the uniformity and stability of the heating process and improving the quality of the generated aerosol. It also prevents excessive frictional resistance between the consumable and the heating element when the consumable is inserted into or removed from the compatible aerosol delivery device, which could damage the heater and extend its service life. However, if the inner core 110 is too large, the distance between it and the central heater of the aerosol delivery device will be too great, which will reduce heating efficiency, affect the release of aroma substances, and thus affect the user's inhalation experience. Therefore, by setting the inner diameter of the inner core 110 within the aforementioned specific range, it is possible to ensure that the consumable has sufficient heat conduction efficiency, prevent it from damaging the aerosol delivery device, and extend the service life of the aerosol delivery device used with it.

[0056] In some embodiments, the ratio of the wall thickness D1 of the inner core 110 to the wall thickness D2 of the outer core 120 is 0.05-0.35; adjusting the wall thickness can adjust the heat transfer path and speed in the consumable 100 as well as the release rate of fragrance substances, which is beneficial to improving the aroma release effect.

[0057] In other embodiments, the mass ratio of the inner core 110 to the outer core 120 is 0.05-0.5; a reasonable mass ratio is conducive to the synergistic effect of the inner core 110 and the outer core 120, which is beneficial to improving the aerosol generation efficiency and quality.

[0058] In some embodiments, a wrapping material layer 130 is also included. The wrapping material layer 130 is disposed on the side of the outer core 120 away from the inner core 110 and contacts the outer core 120. The wrapping material layer 130 can be made of at least one of single-layer paper, composite aluminum foil, glass, and polymer materials, specifically, it can be formed paper, cork paper, flexible glass, polyvinyl alcohol (PVA) based composite materials, etc. The wrapping material layer 130 serves a protective and shaping function, maintaining the structural integrity of the consumable 100 and preventing deformation or damage during processing, transportation, and use.

[0059] In some embodiments, the axial suction resistance of the consumable 100 is less than 3.0 Pa / mm. In other embodiments, the axial suction resistance of the consumable 100 is 0 Pa / mm. Here, axial refers to the length direction of the consumable. Lower suction resistance can significantly improve the user's suction experience, making the suction process easier and smoother, which helps meet consumers' needs for comfortable suction.

[0060] In some embodiments, the transverse tensile strength of the first aerosol generating substrate is ≥600 N / m, and / or, the longitudinal tensile strength of the first aerosol generating substrate is ≥800 N / m. In other embodiments, the transverse tensile strength of the first aerosol generating substrate is ≥1000 N / m, and / or, the longitudinal tensile strength of the first aerosol generating substrate is ≥1500 N / m. Therefore, by using a substrate with high tensile strength to prepare the inner core 110, the formed inner core 110 can have sufficient supporting force to provide good support for the outer core 120, preventing it from being crushed by the weight of the outer core 120 and thus contributing to the structural stability of the formed consumable 100.

[0061] Tensile strength represents the maximum tension that a specimen per unit width can withstand before breaking. The testing method can refer to the national standard GB / T 12914-2018, "Determination of Tensile Strength of Paper and Paperboard," for example, using a horizontal tensile strength tester (model F81502) and the constant-speed tensile method: First, clamp a specimen of a specified width, ensuring it is perpendicular and without initial tension; then, stretch the specimen at a constant speed until it breaks; record the maximum force value; calculate the tensile strength by dividing the maximum force value by the specimen width, with units of kN / m or N / m.

[0062] In some embodiments, the bending stiffness of the first aerosol generating substrate is ≥0.15 mN*m. In other embodiments, the bending stiffness of the first aerosol generating substrate is ≥0.25 mN*m. Therefore, by using a substrate with high bending stiffness to prepare the inner core 110, the formed inner core 110 can have sufficient supporting force to provide good support for the outer core 120, preventing it from bending due to the weight of the outer core 120, thereby contributing to the structural stability of the formed consumable 100.

[0063] Among them, bending stiffness is a measure of the strength of a substrate against bending, indicating its softness or stiffness. The test method can refer to GB / T 22364-2018 for the determination of bending stiffness of paper and paperboard. For example, using a bending stiffness tester of model TM2101-T5, the constant speed bending method is used: clamp one end of the sample vertically on the instrument's fixing clamp, start the instrument to bend the sample at a constant speed to the specified angle, and record the bending torque at this time, in N·m or mN·m.

[0064] In some embodiments, the transverse tensile strength of the second aerosol-generating substrate is less than that of the first aerosol-generating substrate. In other embodiments, the transverse tensile strength of the second aerosol-generating substrate is ≥50 N / m. In still other embodiments, the transverse tensile strength of the second aerosol-generating substrate is ≥100 N / m.

[0065] In some embodiments, the longitudinal tensile strength of the second aerosol-generating substrate is less than that of the first aerosol-generating substrate. In other embodiments, the longitudinal tensile strength of the second aerosol-generating substrate is ≥200 N / m. In still other embodiments, the longitudinal tensile strength of the second aerosol-generating substrate is ≥300 N / m.

[0066] Therefore, by making the tensile strength of the second aerosol generating substrate less than that of the first aerosol generating substrate, the outer core 120 formed therefrom has a smaller tensile strength, which makes it easier to wind or cut the second aerosol generating substrate, simplifying the preparation process and saving manufacturing costs.

[0067] In some embodiments, the bending stiffness of the second aerosol generating substrate is less than that of the first aerosol generating substrate. In other embodiments, the bending stiffness of the second aerosol generating substrate is ≥0.03 mN*m. In still other embodiments, the bending stiffness of the second aerosol generating substrate is ≥0.07 mN*m. Therefore, by making the bending stiffness of the second aerosol generating substrate less than that of the first aerosol generating substrate, the outer core 120 formed therefrom has a smaller bending stiffness, which makes it easier to wind or slit the second aerosol generating substrate, simplifying the manufacturing process and saving production costs.

[0068] In some embodiments, the total mass fraction of water-soluble sugars in the first aerosol generating substrate is 0.1-5.0%. This allows the inner core 110 to have a lower total water-soluble sugar content, reducing the basis for carbonization reactions when the consumable 100 is heated during use in the aerosol delivery device. This helps reduce the amount of carbides generated on the central heater of the aerosol delivery device located within the hollow cavity of the inner core 110 during heating, thereby reducing the adverse effects of carbide accumulation on aerosol generation quality and the lifespan of the aerosol delivery device.

[0069] Water-soluble sugars include at least one of the following: monosaccharides (glucose, fructose, etc.), disaccharides (sucrose, maltose, etc.), and oligosaccharides (raffinose, stachyose, etc.). The total mass fraction of water-soluble sugars refers to the mass fraction of all water-soluble sugars contained in the aerosol-generating substrate. The testing of the total mass fraction of water-soluble sugars can be performed with reference to the People's Republic of China Tobacco Industry Standard YC / T159-2002, "Tobacco and Tobacco Products - Determination of Water-Soluble Sugars - Continuous Flow Method." For example, a continuous flow analyzer (model AA3) can be used. The process involves: after water extraction of the substrate, the water-soluble sugars in the extract react with a colorimetric agent under specific conditions to generate a colored compound. The absorbance of this compound is then measured at a specific wavelength using a continuous flow analyzer, and the total mass fraction of water-soluble sugars is calculated based on the standard curve.

[0070] In some embodiments, the total mass fraction of water-soluble sugars in the first aerosol-generating substrate is less than that in the second aerosol-generating substrate. In other embodiments, the total mass fraction of water-soluble sugars in the second aerosol-generating substrate is 6-15%. In still other embodiments, the total mass fraction of water-soluble sugars in the second aerosol-generating substrate is 6.5-12.5%. In this case, the total mass fraction of water-soluble sugars in the inner core 110 is lower than that in the outer core 120. The lower sugar content reduces the material basis for carbonization during heating, which helps to reduce the amount of carbonized material generated on the wall of the central heater of the aerosol delivery device during heating, and reduces the adverse effects of carbonized material accumulation on the quality of aerosol generation and the service life of the aerosol delivery device. On the other hand, the higher total mass fraction of water-soluble sugars in the outer core 120 is beneficial to increasing the overall aerosol generation of the consumable 100, thereby improving the fragrance and enhancing the user's inhalation experience.

[0071] In some embodiments, the first aerosol-generating substrate further includes a specific heat capacity enhancing agent. In other embodiments, the specific heat capacity enhancing agent includes at least one selected from magnesium oxide, aluminum oxide, zirconium oxide, silicon carbide, silicon dioxide, and silicates. In still other embodiments, the mass fraction of the specific heat capacity enhancing agent in the first aerosol-generating substrate is 0.05%-5.0%.

[0072] In this case, when the consumable 100 is inserted into the aerosol delivery device for use, the inner core 110 is heated. Due to the presence of the specific heat capacity enhancer, the inner core 110 can improve its ability to store and transfer heat, thereby increasing the amount of heat and improving the heat transfer efficiency. This allows the outer core 120 to receive heat more quickly and increases the amount of heat received, thereby increasing the aerosol generation rate and concentration of the outer core 120 and optimizing the overall aerosol generation process of the consumable 100. Furthermore, under normal circumstances, if the content of the specific heat capacity enhancer in the inner core 110 is too low, the heat transfer and storage effect of the inner core 110 will be poor, resulting in a reduced aerosol release rate. This leads to a poor user experience in the first few puffs and also hinders the rapid transfer of heat to the outer core 120, making it impossible to quickly and efficiently generate a sufficient concentration of aerosol in the outer core 120. However, if the content of the specific heat capacity enhancer in the inner core 110 is too high, a metallic odor may easily appear in the heated aerosol, affecting the user's vaping experience. Therefore, controlling the content of the specific heat capacity enhancer in the inner core 110 within the aforementioned specific range can both increase the rate and concentration of aerosol generation by the consumable 100 and effectively prevent the aerosol from carrying a metallic odor, thereby improving the user's vaping experience.

[0073] This disclosure also provides an aerosol supply system, including an aerosol delivery device and a consumable 100 suitable for the aerosol delivery device as described in any of the foregoing embodiments, wherein when the consumable 100 is delivered to the aerosol delivery device, the aerosol delivery device is configured to heat the consumable 100 to generate aerosol.

[0074] In some embodiments, the aerosol delivery device includes a central heater, which is configured to be at least partially located within the hollow cavity of the consumable 100 when the consumable 100 is used for aerosol delivery. Here, "central heater" refers to a heater disposed within the aerosol supply device, which can be inserted into the hollow cavity of the adapted consumable. It does not necessarily mean that the heater is located at the center of the aerosol delivery device, nor does it necessarily mean that the heater is located at the center of the hollow cavity after insertion; it can also be located in other non-central positions.

[0075] In some embodiments, the consumable 100 can be assembled into a consumable assembly and used in conjunction with an aerosol delivery device. Specifically, the consumable assembly may include, as shown in FIG2, a filter 200, a support 300, a consumable 100, and a plug 400 that are sequentially connected and coaxially arranged.

[0076] Specifically, the plug 400 can be formed by agglomerating cellulose acetate bundles, or by embossing or cutting paper materials or aerosol generating matrix into strips, or it can be a membrane or shell structure, etc.; the consumable 100 serves as the core segment; the support 300 can be a hollow tubular structure, such as a hollow paper tube, a hollow cellulose acetate rod, or a plant-based component. The support 300 has a central airway with an inner diameter larger than the inner diameter of the core tube 110 in the core segment. The aerosol generated by the consumable 100 can flow through this central airway for cooling, and it is also beneficial for the aerosol to gather towards the center and be drawn in, resulting in good aerosol agglomeration. In some embodiments, the support 300 can be provided with through holes to facilitate the introduction of outside air, which is beneficial for accelerating the cooling of the aerosol; the filter segment 200 can be a solid cellulose acetate material with micropores.

[0077] In addition, the consumable component may also include a protective layer that wraps around the circumferential surfaces of the filter 200, support 300, consumable 100, and plug 400. The protective layer has a certain degree of rigidity and can provide some protection to the other structural sections.

[0078] In some embodiments, a gap is provided between the central heater and the inner wall of the inner core 110. In other embodiments, the average width of the gap is 0.025-0.5 mm. In still other embodiments, the average width of the gap is 0.05-0.25 mm. For example, when the size of the central heater is 2.4 mm, the inner diameter of the inner core 110 can be 2.45-3.4 mm, or 2.5-2.9 mm. The gap refers to a situation where the central heater and the inner core 110 are not in contact or are not in complete contact. Therefore, the presence of the gap can prevent or reduce contact between the central heater and the inner core 110, thereby reducing the possibility of contamination of the central heater and extending the service life of the aerosol delivery device with the central heater, thus ensuring the stability and reliability of the aerosol supply system.

[0079] Generally, if the gap width is too large, too much outside air will be introduced, leading to a decrease in the aerosol concentration generated by the consumable 100. Simultaneously, an excessively large gap width reduces the heat transfer efficiency of the central heater, decreasing the amount of heat transferred and further reducing the aerosol production of the consumable 100, thus affecting the user's vaping experience. Conversely, if the gap width is too small, the distance between the central heater and the inner tube 110 will be too close, or the contact area will be too large, increasing the possibility of the central heater being contaminated by carbonized substances generated by the inner tube 110. Therefore, setting the gap between the central heater and the inner wall of the inner tube 110 within the aforementioned range ensures that there is sufficient space inside the consumable 100 to accommodate the central heater of the aerosol delivery device, preventing contamination of the central heater due to excessive proximity and extending the service life of the supply equipment. It also ensures that the aerosol concentration generated by the consumable is not too low, thereby guaranteeing the user's vaping experience.

[0080] The features and performance of this disclosure will be further described in detail below with reference to embodiments.

[0081] Example 1

[0082] This disclosure provides an aerosol generation system, specifically including:

[0083] As shown in Figures 1 and 2, the filter 200, support 300, consumables and plug 400 are connected and coaxially arranged in sequence;

[0084] The consumables include an inner core 110 and an outer core 120 sleeved on the outside of the inner core 110. The inner core 110 is wound with a first aerosol generating substrate to form a two-layer structure, and the basis weight of a single layer of the first aerosol generating substrate is 130 g / m³. 2 The outer core 120 is formed by stacking filaments (strips) cut from the second aerosol generating substrate with a thickness of 0.175 mm. The first aerosol generating substrate, by mass fraction, comprises: 18.5% aerosol generating agent (15% glycerol, 3.5% propylene glycol), 23% adhesive (15% carboxymethyl cellulose, 8% reinforced guar gum), 30% plant fiber (broadleaf wood fiber), 12.5% ​​microcrystalline cellulose, 2.5% zirconium oxide specific heat capacity enhancer (particle size less than 250 micrometers), and the remainder being 6.75% fragrance and 6.75% tobacco extract. The outer core 120 is formed by stacking filaments (strips) cut from the second aerosol generating substrate. The width of each filament (strip) is approximately 1 mm, and the total weight of the filaments is 220 g / m³. 2The thickness of the filament is approximately 0.21 mm. The composition of the second aerosol generating substrate, by mass fraction, includes: 25% aerosol generating agent (22% glycerol, 3% propylene glycol), 2.8% adhesive (0.7% carboxymethyl cellulose, 2.1% guar gum), 7% plant fiber (5% coniferous wood, 2% broadleaf wood), 55% tobacco powder (particle size less than 250 micrometers), 8% calcium carbonate (particle size less than 75 micrometers), and the remainder being flavorings and tobacco extracts; the consumable mass is maintained at (0.30±0.01) g / 12 mm.

[0085] In this embodiment, the inner diameter of the inner tube 110 of the consumable is 2.7 mm, and the outer diameter of the outer tube 120 is 6.9 mm. Taking an aerosol delivery device with a central heater having an outer diameter of 2.4 mm as an example, the central heater can be inserted into the inner tube 110 of the consumable, so that the average width of the gap between the central heater and the inner wall of the inner tube 110 is 0.15 mm.

[0086] Example 2

[0087] The difference between this embodiment and Embodiment 1 is that the mass fraction of the aerosol generating agent in the first aerosol generating substrate is 5%, and the mass fraction of microcrystalline cellulose is 26%.

[0088] Example 3

[0089] The difference between this embodiment and Embodiment 1 is that the mass fraction of aerosol generating agent in the first aerosol generating substrate is 32%, microcrystalline cellulose is 0%, and fragrance is 5.75%.

[0090] Example 4

[0091] The difference between this embodiment and Embodiment 1 is that the first aerosol generating substrate does not include tobacco extract, and all other components are tobacco-free flavorings and fragrances, that is, the mass fraction of tobacco-free flavorings and fragrances is 13.5%.

[0092] Example 5

[0093] The difference between this embodiment and Embodiment 1 is that the first aerosol generating substrate does not contain fragrances or flavorings, and all other components are tobacco extracts, i.e., the mass fraction of tobacco extracts is 13.5%.

[0094] Example 6

[0095] The difference between this embodiment and Embodiment 1 is that the zirconium oxide content of the first aerosol generating substrate is 0.05%, and the microcrystalline cellulose content is 14.95%.

[0096] Example 7

[0097] The difference between this embodiment and Embodiment 1 is that the zirconium oxide content of the first aerosol generating substrate is 5.0%, and the microcrystalline cellulose content is 10%.

[0098] Example 8

[0099] The difference between this embodiment and Embodiment 1 is that the inner core 110 is wound into a 5-layer structure by the first aerosol-generated substrate, while the rest remains unchanged.

[0100] Example 9

[0101] The difference between this embodiment and Embodiment 1 is that the inner diameter of the inner tube 110 of the consumable is 2.45mm, and the average width of the gap between the inner wall of the inner tube 110 and the central heater is 0.025mm.

[0102] Example 10

[0103] The difference between this embodiment and Embodiment 1 is that the inner diameter of the inner tube 110 of the consumable is 3.4 mm, and the average width of the gap between the inner wall of the inner tube 110 and the central heater is 0.5 mm.

[0104] Comparative Example 1

[0105] The difference between this comparative example and Example 1 is that the content of the aerosol generating agent in the first aerosol generating substrate is 4%, and the content of microcrystalline cellulose is 27%.

[0106] Comparative Example 2

[0107] The difference between this comparative example and Example 2 is that the content of the aerosol generating agent in the first aerosol generating substrate is 33%, the content of microcrystalline cellulose is 0%, and the content of fragrance is 4.75%.

[0108] Comparative Example 3

[0109] The difference between this comparative example and Example 1 is that the first aerosol generating substrate contains 20% tobacco extract, 6.0% microcrystalline cellulose, and 0% flavoring.

[0110] Comparative Example 4

[0111] The difference between this comparative example and Example 1 is that the zirconium oxide content of the first aerosol generating substrate is 0%, and the microcrystalline cellulose content is 15%.

[0112] Comparative Example 5

[0113] The difference between this comparative example and Example 1 is that the first aerosol generating substrate has a zirconium oxide content of 5.5% and a microcrystalline cellulose content of 9.5%.

[0114] Comparative Example 6

[0115] The difference between this comparative example and Example 1 is that the inner core is wound into a single-layer structure using a first aerosol-generated matrix, and the inner core uses 70g / m 2The preparation was quantitative, with an inner core thickness of 0.09 mm, and the composition was consistent with that of Example 1;

[0116] Comparative Example 7

[0117] The difference between this comparative example and Example 1 is that the inner core is wound into an 8-layer structure by the first aerosol-generated matrix; otherwise, it remains the same as Example 1.

[0118] Comparative Example 8

[0119] The difference between this comparative example and Example 1 is that the inner diameter of the inner core 110 of the consumable is 2.3 mm, so there is no gap between the inner wall of the inner core 110 and the central heater.

[0120] Comparative Example 9

[0121] The difference between this comparative example and Example 1 is that the inner diameter of the inner tube 110 of the consumable is 3.5 mm, and the average width of the gap between the inner wall of the inner tube 110 and the central heater is 0.55 mm.

[0122] Comparative Example 10

[0123] The difference between this comparative example and Example 1 is that the consumable does not have an inner core 110 and a hollow cavity. That is, the second aerosol substrate is cut into filaments and then gathered into a solid structure, maintaining a mass of (0.30±0.01)g / 12mm.

[0124] Table 1. Composition parameters of inner core 110

[0125] Table 2. Composition Parameters of Outer Core 120 Note: In the table,

[0126] 1. Tensile strength test method refers to national standard GB / T 12914-2018: using a horizontal tensile strength tester (model F81502), the constant-speed tensile method is employed: First, clamp the specimen of the specified width, ensuring it is perpendicular and without initial tension; then, stretch the specimen at a constant speed until it breaks; record the maximum force value; calculate the tensile strength by dividing the maximum force value by the specimen width; specific test conditions are as follows:

[0127] Sample size: Cut a sample strip with a width of (15±0.1) mm and a length of approximately 250 mm, sufficient to be clamped between the two clamps. The test length (average distance between the clamps) is 180 mm±1 mm.

[0128] Test speed: tensile rate is 20 mm / min ± 5 mm / min.

[0129] Force magnitude: The standard range of the testing machine is 50N, the effective range of force value is 2%-100%FS, the resolution is 0.001N, and the test accuracy is 0.5%FS.

[0130] Angle size: Ensure that the sample is parallel to the direction of the applied tension.

[0131] 2. The bending stiffness test method refers to GB / T 22364-2018: using a bending stiffness tester of model TM2101-T5, the constant speed bending method is adopted: clamp one end of the sample vertically on the instrument's fixing clamp, start the instrument to bend the sample at a constant speed to the specified angle, and record the bending moment at this time; the specific test conditions are as follows:

[0132] Sample size: length (70±1) mm, width (38±0.1) mm. 5 samples each in the longitudinal and transverse directions.

[0133] Test speed: The constant speed bending method was used, and the angular velocity was set to 5° / s.

[0134] Angle size: 15°, accuracy: ±0.3°.

[0135] Test environment: Temperature (23±1)℃, relative humidity (50±2)%.

[0136] 3. The determination of the total mass fraction of water-soluble sugars is based on the People's Republic of China Tobacco Industry Standard YC / T159-2002 "Determination of Water-Soluble Sugars in Tobacco and Tobacco Products - Continuous Flow Method": The test is performed using a continuous flow analyzer, model AA3.

[0137] Sample preparation: When preparing the sample solution, follow the standard YC / T31—1996 "Preparation of Tobacco and Tobacco Products Samples and Determination of Moisture by Oven Method" to grind tobacco leaves or shredded tobacco into powder. Weigh approximately 0.25g of powder sample, accurate to 0.1mg, and place it in a 50mL ground glass stoppered conical flask. Accurately add 25mL of deionized water, stopper the flask, and shake to extract for 30min.

[0138] After the sample is extracted with water, the water-soluble sugars in the extract react with a colorimetric reagent under specific conditions to generate a colored compound. The absorbance is then measured at a specific wavelength using a continuous flow analyzer, and the content of water-soluble sugars is calculated based on the standard curve.

[0139] The aerosol generation systems obtained in Examples 1-10 and Comparative Examples 2-10 were tested and evaluated. The evaluation results are shown in Table 3. The specific evaluation methods are as follows:

[0140] A 12mm length cutting test was conducted on the consumable cigarette length cutting equipment obtained in Examples 1-10 and Comparative Examples 2-10. The specific conditions for the cigarette core length cutting test are as follows:

[0141] (1) Sample pretreatment

[0142] Moisture balance: Place the cigarette core in an environment with a temperature of 22℃-25℃ and a relative humidity of 30%-40% to ensure that its moisture content is balanced and uniform, so as to avoid affecting the cutting quality due to uneven moisture.

[0143] Inspection of appearance: Remove cigarette cores with defects in appearance, such as uneven surface or exposed tobacco, to ensure that the cigarette cores used for testing have good appearance quality.

[0144] (2) Cutting environment

[0145] Temperature: Maintain at 20℃-25℃ to prevent changes in the physical properties of the cigarette core rod due to excessively high or low temperatures, which could affect the cutting accuracy.

[0146] Humidity: The relative humidity should be controlled at 30%-40%. Suitable humidity can keep the cigarette core sticks in good toughness and hardness, making them easy to cut.

[0147] Cleanliness: The cutting environment should be kept clean to prevent dust, impurities, etc. from adhering to the cigarette core rod or entering the cutting equipment, which would affect the cutting effect and the quality of the cigarette core rod.

[0148] (3) Cutting pressure

[0149] Based on the material properties and diameter of the cigarette wick, a cutting pressure of 75N is generally selected that allows the blade to cut the cigarette wick smoothly without causing excessive compression or deformation.

[0150] (4) Cutting speed

[0151] Cutting speed: 75mm / s. Too slow a speed will affect work efficiency, while too fast a speed may lead to accelerated blade wear, and even problems such as uneven cuts and burrs on the cigarette insert.

[0152] After cutting, the end face of 10 consumables was selected to observe the deformation of the inner tube of the consumable cross-section. The roundness was used as the characterization, and the average value was taken. The specific results are shown in Table 3.

[0153] Circularity is a quantitative indicator used to describe how close an object's shape is to a circle.

[0154] Circularity is calculated based on the object's perimeter and area. The formula is: Circularity = 4π × Area / Perimeter 2 When an object is a perfect circle, the roundness value is 1; the further the object's shape deviates from a circle, the smaller the value. For example, the roundness of a square is approximately 0.785, which is less than 1, indicating that the square's shape is not as "round" as a circle.

[0155] Table 3. Deformation of Consumables During Cutting Note: No deformation means 1 ≤ roundness ≤ 0.95.

[0156] As shown in Tables 1 and 3, in Comparative Example 1, the low aerosol generating agent content in the inner core 110 significantly affected the molding of the first aerosol generating substrate, making it brittle and fragile, and unable to form a continuously extending sheet. In Comparative Example 2, the excessive aerosol generating agent content in the inner core 110 resulted in tensile strength and flexural stiffness values ​​being lower than required. In Comparative Example 6, the lower-than-required values ​​in terms of weight, wall thickness, and other indicators caused the inner core 110 to deform during the cutting test, and the hollow cavity was no longer circular. Other embodiments and comparative examples, because their tensile strength and flexural stiffness met the requirements, showed no deformation during cutting.

[0157] A comparison of Examples 1-3 and Comparative Example 2 shows that the aerosol generating agent content has a significant impact on the tensile strength and flexural stiffness of the inner core 110. Lower aerosol generating agent content improves the tensile strength and flexural stiffness of the inner core 110; higher aerosol generating agent content reduces both. Appropriate addition of aerosol generating agent can give the material a certain degree of flexibility and moisture retention, which helps improve tensile strength and flexural stiffness. However, excessive addition may make the material too soft, affecting the interaction between the adhesive and other components, thereby reducing tensile strength and flexural stiffness.

[0158] A comparison of Examples 1, 4, and 5 with Comparative Example 3 shows that water-soluble sugars have a certain impact on the tensile strength and flexural stiffness of the inner core 110. With the increase of water-soluble sugar content, the tensile strength of the inner core 110 increases, but the flexural stiffness gradually decreases. This is because, in order to maintain the structural stability of the inner core 110, the water-soluble sugar content should be appropriate.

[0159] Comparing Examples 1, 5, and 6 with Comparative Examples 4 and 5, it is shown that the content of the specific heat capacity enhancer has little effect on the tensile strength and bending stiffness of the inner core 110, but generally shows a trend of first increasing and then decreasing.

[0160] The aerosol generation systems obtained in Examples 1-10 and Comparative Examples 2-10 were tested for smoke concentration and smoke generation efficiency. The cigarette structure is shown in Figure 2, and a GloHilo needle heater from the international tobacco brand was used. The specific test methods are as follows:

[0161] Under the same environmental conditions (temperature 25℃, humidity (35±5)%RH), a heating device was used to insert a cigarette sample for heating. The smoke concentration was detected by a heating non-combustion comprehensive tester. The time from the start of the heating device to the stable smoke generation was recorded as a comparison of smoke generation efficiency. The average value of the 3rd to 10th puffs was taken as a comparison of the amount of smoke generated within a fixed time. The total puffing time was 180s, with each puff lasting 15s. The results are shown in Table 3.

[0162] Table 4 Comparison of smoke concentration and smoke generation efficiency of aerosol products

[0163] As shown in Table 4, Comparative Example 10 serves as the control sample. It can be seen that the average smoke concentration of Examples 1-10 has increased, with a maximum increase of 21%. The smoke generation efficiency has remained basically the same or accelerated, with the fastest increase being 30 seconds.

[0164] Examples 1-3 and Comparative Example 2 show that the aerosol generator content of the inner core 110 has a certain impact on the smoke concentration. A lower aerosol generator content results in a lower initial release concentration due to its proximity to the heat source, thus leading to a lower average smoke concentration. Conversely, a higher aerosol generator content results in a higher initial release concentration due to its proximity to the heat source, thus leading to a slightly higher average smoke concentration. However, if the aerosol generator content is too high, deformation of the inner core 110 reduces the heating uniformity, resulting in a lower average smoke concentration.

[0165] Examples 1, 4, and 5 demonstrate that water-soluble sugars have a certain impact on the smoke concentration of the inner core 110. Lower water-soluble sugar content results in a lower average smoke concentration; higher water-soluble sugar content results in a slightly higher average smoke concentration. Water-soluble sugars can pyrolyze at around 300℃ to form various aroma compounds, such as simple ketones, furan derivatives, and aldehydes. These substances increase the aroma and concentration of the smoke, making the smoke richer and fuller. Simultaneously, water-soluble sugars and amino acids can undergo Maillard reactions to form various aroma compounds, such as pyridine, pyrrole, pyrazine, and their alkyl derivatives. The Maillard reaction not only produces aroma compounds but may also alter the internal structure and properties of the smoke-generating material, thereby affecting the smoke release concentration and quality.

[0166] Examples 1, 6, 7, and Comparative Example 4 demonstrate that specific heat capacity enhancers have a significant impact on the smoke concentration of the inner core 110. The lower the specific heat capacity enhancer content, the lower the average smoke concentration. Appropriate amounts of specific heat capacity enhancers can ensure that the smoke-generating material retains sufficient heat after being heated to the target temperature, allowing for the full volatilization of smoke-generating substances such as nicotine and flavorings.

[0167] Examples 1 and 8, and Comparative Examples 6 and 7, demonstrate that the wall thickness and mass of the inner core 110 and outer core 120 have a significant impact on smoke concentration. Since the outer core 120 is the main smoke-generating material, it carries a large amount of tobacco aroma components and aerosol generating agents. Furthermore, its orderly arrangement of separate strands ensures unobstructed airflow, allowing for the continuous release of a large amount of aerosols. Within the protected range, the smaller the wall thickness and mass of the inner core 110, and the larger the wall thickness and mass of the outer core 120, the higher the smoke concentration. If the wall thickness of the inner core 110 exceeds the protected range, the smoke concentration is lower. However, if the wall thickness of the inner core 110 is too small, deformation will occur, leading to reduced heating uniformity and consequently a lower average smoke concentration.

[0168] Examples 1, 9, and 10, and Comparative Examples 8 and 9, demonstrate that the inner diameter of the inner core 110 has a significant impact on smoke concentration. Within the protected area, as the inner diameter of the inner core 110 increases, the gap between it and the heating needle increases, resulting in an initial increase followed by a decrease in smoke concentration. Both excessively large and small inner diameters of the inner core 110 lead to lower smoke concentrations. This is because the farther away from the heat source, the less thermal radiation energy received per unit area, resulting in a lower material temperature and insufficient release of effective components. Without a gap, as in Comparative Example 8, displacement of the aerosol substrate would occur, affecting the smoke generation effect.

[0169] After testing the aerosol generation systems of Examples 1-10 and some comparative examples with a heated non-combustible comprehensive tester, the aerosol products were removed from the heater and the heater was cleaned. The weight of the carbonized material adhering to the surface of the heating needle of the device was measured and the consumable near the lip end was peeled off to check the displacement of the consumable. The displacement rate was used as the characterization. The displacement rate = displacement amount (g) / total weight of aerosol generation substrate (g) × 100%. The results are recorded in Table 5.

[0170] Table 5 Comparison of Carbide Weight and Displacement in Consumables

[0171] As shown in Table 5, with Comparative Example 10 as the control sample, the carbide weight of Examples 1-10 was significantly reduced, and no aerosol substrate displacement occurred.

[0172] Examples 1, 4, 5 and Comparative Example 3 show that carbide accumulation only occurs when the water-soluble sugar content in the inner core 110 exceeds a certain range. Once this range is exceeded, the higher the water-soluble sugar content, the more carbide is produced.

[0173] In Comparative Examples 2 and 6, the deformation of the inner core 110 during cutting caused displacement of the aerosol substrate when the heating needle was inserted, resulting in an increase in carbides.

[0174] Comparative Example 8 shows that there is no gap between the inner core 110 and the heating needle. When the heating needle is inserted, the aerosol substrate is displaced, resulting in an increase in carbides.

[0175] The aerosol generation systems of the examples and comparative examples were evaluated and scored. Specifically, seven evaluation experts were invited to evaluate and score the products using GloHilo needle-type heated smoke devices. The results are shown in Table 6.

[0176] Table 6 Sensory Quality Evaluation of Aerosol-Generated Products Note: Comparative Example 3 is a comparative example of the weight of carbonized material after aspiration. It performed reasonably well in the sensory quality evaluation, so it is not mentioned in this table.

[0177] As shown in Table 6, with Comparative Example 10 as the control sample, the total sensory quality scores of Examples 1-10 were all improved, with the maximum improvement being 5.6 points.

[0178] Examples 1, 2, 3 and Comparative Example 2 show that increasing the content of aerosol generating agent in the inner core 110 is beneficial to improving the overall sensory quality evaluation score. However, if the content of aerosol generating agent is too high, it will cause deformation of the inner core 110 and uneven concentration release, which will reduce the overall sensory quality evaluation score.

[0179] Examples 1, 6, and 7, and Comparative Examples 4 and 5, demonstrate that the content of the specific heat capacity enhancer in the inner core 110 has a significant impact on the overall sensory quality evaluation score. Within the protection range, the lower the specific heat capacity enhancer content, the higher the aroma; conversely, the higher the specific heat capacity enhancer content, the lower the aroma. This is due to the metallic off-flavor inherent in the specific heat capacity enhancer itself. In Comparative Example 4, the specific heat capacity enhancer content was 0, which resulted in a decrease in the concentration and strength indicators, thereby affecting the aroma quantity indicator.

[0180] Examples 1 and 8, and Comparative Example 7, demonstrate that the wall thickness and mass of the inner core 110 and outer core 120 have a significant impact on sensory quality scores. Within the protection range, the smaller the wall thickness and mass of the inner core 110 and the larger the wall thickness and mass of the outer core 120, the higher the total sensory quality evaluation score; outside the protection range, the total sensory quality evaluation score is lower. This is because the outer core 120 is the main smoke-generating substance, carrying a large amount of tobacco aroma components and aerosol generating agents. Furthermore, its filaments are arranged in an orderly manner, with unobstructed air passages, allowing for the continuous release of a large amount of aerosols.

[0181] Examples 1, 9, and 10, and Comparative Examples 8 and 9, demonstrate that the inner diameter of the inner core 110 has a significant impact on the sensory quality score. Within the protection range, the smaller the inner diameter of the inner core 110, the smaller the gap with the heating needle, and the higher the total sensory quality score; beyond the protection range, the total sensory quality score is lower. This is because the farther away from the heat source, the less thermal radiation energy received per unit area, the lower the material temperature, and the less sufficient the release of the effective components. Without a gap, as in Comparative Example 8, aerosol substrate displacement would occur, affecting the smoke generation effect and sensory quality score.

[0182] The above description is merely a preferred embodiment of this disclosure and is not intended to limit the scope of this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure. Industrial applicability

[0183] The consumable in this disclosure adopts a binary ring-shaped structure design with a hollow cavity, including an inner core and an outer core sleeved outside the inner core. By setting the inner core as a tube, the hollow cavity in the inner core that is suitable for the insertion of the heating element can avoid the problems of consumable deformation, aerosol generation and release, and thus the impact on the suction experience caused by the insertion of the heating element.

Claims

1. A consumable suitable for an aerosol delivery device, characterized in that, include: The inner tube has a hollow cavity and an outer tube is sleeved on the outside of the inner tube, wherein the inner tube includes a first aerosol generating substrate and the outer tube includes a second aerosol generating substrate.

2. The consumable suitable for an aerosol delivery device according to claim 1, characterized in that, Both the first aerosol generating substrate and the second aerosol generating substrate contain an aerosol generating agent, and the content of the aerosol generating agent in the first aerosol generating substrate is less than the content of the aerosol generating agent in the second aerosol generating substrate. And / or, the aerosol generating agent is selected from at least one of polyol compounds and polysaccharide alcohol compounds; And / or, the mass fraction of the aerosol generating agent in the first aerosol generating substrate is 5-32%, preferably, the mass fraction of the aerosol generating agent in the first aerosol generating substrate is 16-21%; And / or, the mass fraction of the aerosol generating agent in the second aerosol generating substrate is 14-36%, preferably, the mass fraction of the aerosol generating agent in the second aerosol generating substrate is 22-28%.

3. The consumable suitable for an aerosol delivery device according to claim 1 or 2, characterized in that, The inner core is formed by rolling the first aerosol-generated substrate. The outer core is formed by rolling the second aerosol generating substrate, or by slicing the outer core and then stacking it together.

4. The consumable suitable for an aerosol delivery device according to claim 3, characterized in that, The first aerosol generating substrate is selected from reconstituted tobacco or a support carrier loaded with an aerosol generating agent. And / or, the second aerosol generating substrate is selected from reconstituted tobacco.

5. The consumable suitable for an aerosol delivery device according to claim 1, characterized in that, The inner diameter of the inner tube is 1.0-4.4 mm; And / or, the ratio of the wall thickness of the inner core to the wall thickness of the outer core is 0.05-0.35; And / or, the ratio of the mass of the inner core to the mass of the outer core is 0.05-0.

5.

6. The consumable suitable for an aerosol delivery device according to claim 1, characterized in that, It also includes a wrapping material layer, which is disposed on the side of the outer core away from the inner core and in contact with the outer core; Preferably, the material of the wrapping layer is at least one of single-layer paper, composite aluminum foil, glass, and polymer.

7. The consumable suitable for an aerosol delivery device according to claim 1, characterized in that, The axial suction resistance of the consumable is less than 3.0 Pa / mm.

8. The consumable suitable for an aerosol delivery device according to claim 1, characterized in that, The transverse tensile strength of the first aerosol generating substrate is ≥200 N / m; preferably, the transverse tensile strength of the first aerosol generating substrate is ≥1000 N / m. And / or, the longitudinal tensile strength of the first aerosol generating substrate is ≥800 N / m; preferably, the longitudinal tensile strength of the first aerosol generating substrate is ≥1500 N / m; And / or, the bending stiffness of the first aerosol generating substrate is ≥0.15mN*m; preferably, the bending stiffness of the first aerosol generating substrate is ≥0.25mN*m.

9. The consumable suitable for an aerosol delivery device according to claim 1, characterized in that, The transverse tensile strength of the second aerosol generating substrate is less than that of the first aerosol generating substrate; preferably, the transverse tensile strength of the second aerosol generating substrate is ≥50 N / m; more preferably, the transverse tensile strength of the second aerosol generating substrate is ≥100 N / m. And / or, the longitudinal tensile strength of the second aerosol generating substrate is less than the longitudinal tensile strength of the first aerosol generating substrate; preferably, the longitudinal tensile strength of the second aerosol generating substrate is ≥200 N / m; more preferably, the longitudinal tensile strength of the second aerosol generating substrate is ≥300 N / m; And / or, the bending stiffness of the second aerosol generating substrate is less than that of the first aerosol generating substrate; preferably, the bending stiffness of the second aerosol generating substrate is ≥0.03mN*m; more preferably, the bending stiffness of the second aerosol generating substrate is ≥0.07mN*m.

10. The consumable suitable for an aerosol delivery device according to claim 1, characterized in that, The total mass fraction of water-soluble sugars in the first aerosol generating substrate is 0.1-5.0%; And / or, the total mass fraction of water-soluble sugars in the first aerosol generating substrate is less than the total mass fraction of water-soluble sugars in the second aerosol generating substrate; And / or, the total mass fraction of water-soluble sugars in the second aerosol generating substrate is 6-15%; preferably, the total mass fraction of water-soluble sugars in the second aerosol generating substrate is 6.5-12.5%.

11. The consumable suitable for an aerosol delivery device according to claim 1, characterized in that, The first aerosol generating substrate further includes a specific heat capacity enhancing agent, which includes at least one of magnesium oxide, aluminum oxide, zirconium oxide, silicon carbide, silicon dioxide, and silicates; And / or, the mass fraction of the specific heat capacity enhancer in the first aerosol generating substrate is 0.05%-5.0%.

12. An aerosol supply system, characterized in that, Includes an aerosol delivery device and a consumable suitable for an aerosol delivery device as described in any one of claims 1-11, wherein when the consumable is used with the aerosol delivery device, the aerosol delivery device is configured to heat the consumable to generate an aerosol from the consumable.

13. The aerosol supply system according to claim 12, characterized in that, The aerosol delivery device includes a central heater, which is configured to be at least partially located within the hollow cavity of the consumable when used with the aerosol delivery device.

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