Aerosol-generating article

Abstract

The utility model provides an aerosol generating product, and relates to the technical field of aerosol generation. The aerosol-generating article has a proximal lip end and a distal lip end; the aerosol generating product comprises a cylindrical wrapping piece, and a fuming section, a cooling section and a filtering section which are sequentially arranged in the wrapping piece in the direction from the far lip end to the near lip end; the device further comprises a plugging piece. The plugging piece is matched with the wrapping piece to seal and plug one side, close to the far lip end, of the fuming section; wherein at least the wrapping part from the plugging part to the periphery of one end, close to the near lip end, of the fuming section is arranged to be a low-ventilation section, and the air permeability of the low-ventilation section is 250-550 CU. The wrapping piece and the blocking piece are matched for sealing, aerosol is prevented from overflowing from the side wall, the aerosol is controlled to be transmitted to the near lip end, and therefore the effect that the appliance is free of cleaning or the cleaning frequency is reduced is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosol generation, in particular to an aerosol generation product. Background Art

[0002] In heat-not-burn technology, an aerosol-generating product must be inserted into the heating device's cavity to generate the aerosol, which is then removed after use. During the heating process, aerosols can easily leak from the aerosol-generating product into the heating device's cavity, forming oily residues or condensation, which requires frequent cleaning by the user. The generation of residues and condensation increases the difficulty of cleaning the product, requiring regular maintenance to maintain performance. Furthermore, the accumulation of residues and condensation can cause safety issues such as odor and short circuits, posing a threat to user safety. Utility Model Content

[0003] The purpose of the utility model is to provide an aerosol generating product, which can reduce the residue in the heating device during use.

[0004] The embodiment of the present utility model is achieved as follows:

[0005] The utility model provides an aerosol generating product having a proximal lip end and a distal lip end;

[0006] The aerosol generating article comprises a cylindrical wrapper, and a smoking section, a cooling section and a filtering section sequentially arranged in the wrapper from the distal lip end to the proximal lip end;

[0007] It also includes a blocking piece; the blocking piece cooperates with the wrapping piece to seal and block the side of the smoking section close to the distal lip end;

[0008] Wherein, at least the wrapping piece from the blocking piece to the outer periphery of one end of the smoking section close to the proximal lip end is configured as a low air permeability structure, and the air permeability of the low air permeability structure is 10 CU to 550 CU.

[0009] In one embodiment, the wrapping member is provided with the low air permeability structure at the periphery of the blocking member to the end of the cooling section close to the proximal lip end;

[0010] The cooling section is provided with at least one air inlet hole at a portion close to the filtering section, and the air inlet hole passes through the wrapping piece.

[0011] In one embodiment, the air inlet holes include a plurality of air inlet holes, and the plurality of air inlet holes are evenly distributed along the circumference of the packaging piece.

[0012] In one embodiment, the diameter of the air inlet hole is 0.01 mm to 0.50 mm.

[0013] In one embodiment, the cross-sectional area of ​​the air inlet is not greater than 0.25 mm 2 .

[0014] In one embodiment, the distance between the air inlet and the filter section ranges from 15 mm to 25 mm.

[0015] In one embodiment, the air permeability of the air inlet is 100 CU to 1000 CU.

[0016] In one embodiment, the wrapper comprises a first wrapping layer and a second wrapping layer;

[0017] In the low-air-permeability structure, the second wrapping layer is laminated on the outer layer of the first wrapping layer;

[0018] The air permeability of the first wrapping layer is greater than that of the second wrapping layer.

[0019] In one embodiment, the air permeability of the first wrapping layer is 500CU to 1000CU;

[0020] The air permeability of the second wrapping layer is 20CU to 200CU;

[0021] The pressure drop of the filtration section is 300-600 Pa.

[0022] In one embodiment, the material of the first wrapping layer is plug-wrapped paper;

[0023] The second wrapping layer is made of tipping paper.

[0024] In one embodiment, the aerosol-generating article has a draw resistance of 600 Pa to 1000 Pa.

[0025] The aerosol-generating product provided by the present invention comprises a blocking member and a wrapping member that cooperate to seal the side of the smoking section near the distal lip, preventing aerosol or aerosol product residue from entering the heating device through the distal lip. Furthermore, the wrapping member, at least from the blocking member to the outer periphery of the smoking section near the proximal lip, is configured with a low-air permeability structure, with an air permeability of 10 to 550 CU. This reduces the chance of aerosol escaping from the sidewalls into the heating device, allowing the majority of generated aerosol to be transferred through the proximal lip under suction. Overall, this eliminates the need for cleaning the device or reduces the frequency of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 Schematic diagram of the cross-sectional structure of the aerosol generating product in an embodiment of the present utility model.

[0028] As shown in the figure: 100-aerosol generating product; 1-near lip end; 2-far lip end; 3-wrapping member; 31-first wrapping layer; 32-second wrapping layer; 4-smoking section; 5-cooling section; 51-air inlet; 6-filtering section; 7-blocking member. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] Please refer to Figure 1 In one embodiment, an aerosol-generating article 100 has a proximal lip end 1 and a distal lip end 2;

[0036] The aerosol generating article 100 further comprises a cylindrical wrapper 3 , and a smoking section 4 , a cooling section 5 and a filtering section 6 sequentially arranged in the wrapper 3 from the distal lip end 2 to the proximal lip end 1 .

[0037] The aerosol-generating article 100 further includes a blocking member 7, which cooperates with the wrapping member 3 to seal the side of the smoking segment 4 near the distal lip end 2. The wrapping member 3, at least from the blocking member 7 to the outer periphery of the smoking segment 4 near the proximal lip end 1, is configured as a low-permeability structure (not shown). The low-permeability structure has an air permeability of 10 CU to 550 CU. For example, the air permeability can be 10 CU, 50 CU, 100 CU, 250 CU, 550 CU, and so on.

[0038] In the aerosol-generating product of this embodiment, the blocking member and the wrapping member cooperate to seal the side of the smoking segment near the distal lip, preventing aerosol or aerosol product residue from falling from the distal lip into the heating device. Furthermore, at least the wrapping member extending from the blocking member to the outer periphery of the smoking segment near the proximal lip is configured with a low-air permeability structure, with an air permeability of 10 CU to 550 CU. This reduces the chance of aerosol escaping from the sidewalls into the heating device, allowing the majority of generated aerosol to be transferred from the proximal lip under suction. Overall, this eliminates the need for cleaning the device or reduces the frequency of cleaning.

[0039] In this embodiment, the proximal lip end 1 and the distal lip end 2 are referenced to the direction of inhalation by the user. During use, the aerosol-generating article is placed in the receiving cavity of the heating device, wherein the smoking section 4 of the aerosol-generating article can be completely located within the receiving cavity of the heating device, and the filter section 6 is completely located outside the receiving cavity of the heating device.

[0040] In this embodiment, the smoking section 4, the cooling section 5 and the filtering section 6 can be arranged in connection with each other, or other structures can be arranged between the two sections. For example, a spacing structure with a spacing function can be arranged between the smoking section 4 and the cooling section 5, or a fragrance-carrying component with a fragrance-adding function can be arranged.

[0041] In this embodiment, the wrapping member 3 is cylindrical. From the cross-sectional perspective, its structure can be cylindrical, polygonal, rectangular, etc., which is compatible with the shape of the part it wraps. There is no limitation here, and it only needs to be able to wrap the smoking section 4, the cooling section 5 and the filtering section 6.

[0042] In this embodiment, the blocking member 7 blocks the side of the smoking segment 4 close to the distal lip end 2; the blocking member 7 can cooperate with the wrapping member 3 to form a sealing structure, which can seal the side of the smoking segment 4 close to the distal lip end 2, effectively reduce the aerosol overflow from the distal lip end 2, and prevent the carbonized slag, carbonized inorganic matter, carbonized impurities, etc. carbonized from falling from the smoking segment 4 from falling from the distal lip end 2 to the heating device, thereby reducing the number of times the user cleans the heating device.

[0043] In this embodiment, at least the peripheral wrapping member 3 extending from the blocking member 7 to the end of the smoking segment 4 near the proximal lip end 1 is configured as a low-permeability structure. Specifically, the peripheral wrapping member 3 extending from the end of the blocking member 7 near the smoking segment 4 to the end of the smoking segment 4 near the proximal lip end 1 is configured as a low-permeability structure. The peripheral wrapping member 3 of the blocking member 7 can also be configured as a low-permeability structure. For example, the peripheral wrapping member 3 of the blocking member 7 near the smoking segment 4 can also be configured as a low-permeability structure, or the peripheral wrapping member 3 of the blocking member 7 can also be configured as a low-permeability structure. Of course, the peripheral wrapping member 3 of the blocking member 7 can also be configured as a low-permeability structure. The blocking member 7 itself can be impermeable or have low permeability. The blocking member 7 and the low-permeability structure of the wrapping member can jointly form a low-permeability structure that wraps the peripheral portion of the smoking segment 4 and the end near the distal lip end. This ensures that only a small amount of aerosol can pass through the peripheral wrapping member of the smoking segment or leak into the heating device through the distal lip end, with the generated aerosol primarily flowing toward the proximal lip end.

[0044] In some embodiments, the air permeability of the low-air permeability structure is controlled to be between 10CU and 550CU. It can not only ensure the proper flow of the aerosol, but also effectively prevent the excessive diffusion of the aerosol, help maintain the stability of the aerosol, reduce the aerosol overflow caused by excessive air permeability, and reduce the residual aerosol-generating products in the heating device. The sealing member 7 cooperates with the outer surrounding cylindrical wrapping member 3 to form a blockage for the periphery of the smoking segment 4 and the end thereof close to the far lip end, and at least the peripheral wrapping member 3 from the sealing member 7 to the end of the smoking segment 4 close to the near lip end 1 is set as a low-air permeability structure, wherein the air permeability of the low-air permeability structure is set between 10CU and 550CU. Its purpose is to control the flow of the aerosol and prevent the disorderly diffusion of the aerosol during the heating process, while reducing the aerosol overflowing into the heating device, reducing the formation of condensate in the heating device, reducing the possible risk of short circuit, and improving the user experience and safety of the product.

[0045] The sealing effect of the blocking member 7 and the wrapping member 3 effectively reduces aerosol leakage from the distal lip end 2 or the periphery, significantly reducing the amount of residue or oily matter left on the heating device by the aerosol-generating product, thereby reducing the frequency and difficulty of cleaning the heating device. It also helps prevent the ingress of large amounts of outside air, which could affect the temperature and concentration of the aerosol, thereby ensuring aerosol quality and user experience. Overall, controlling the flow and diffusion of the aerosol improves the user experience while reducing the inconvenience and potential safety hazards associated with cleaning and maintaining the heating device, providing a cleaner and safer puffing experience and reducing maintenance inconvenience.

[0046] In one embodiment, the smoking segment 4 includes a smoking material. The smoking material may be a tobacco material, a non-tobacco material, or a combination of both, without limitation. The non-tobacco material may also be a carrier adsorbed with a smoking agent, such as glycerin, propylene glycol, or nicotine extract. The smoking segment 4 may also contain a flavoring material, such as a fragrance or flavoring agent.

[0047] In one embodiment, the sealing member 7 is made of a material with low air permeability or impermeability. In one embodiment, the sealing member 7 can be a sealing paper, the periphery of which is sealed and fixedly bonded to the wrapping member 3. The sealing member 7 can also be a sealing block that matches the shape of the wrapping member 3. The sealing block seals against the inner wall of the wrapping member 3, which can be bonded or have an interference fit, as long as a sealing fit is achieved.

[0048] In one embodiment, the sealing member 7 can be made of a plant-based composite material. Plant-based composite materials are composite materials that utilize plant fibers as reinforcements. For example, they can be composed of plant fibers (such as flax, bamboo fiber, straw, etc.) and a resin matrix. In this embodiment, the sealing member 7 is made of a plant-based composite material, which has a dense texture and low air permeability. This allows for a good seal with the wrapping member 3, effectively reducing aerosol overflow from the distal lip end 2 and preventing carbonized slag, carbonized inorganic matter, and carbonized impurities from carbonizing the smoking section 4 from falling from the distal lip end 2 onto the heating device.

[0049] In one embodiment, the wrapping piece 3 is set as a low-permeability structure on the periphery from the sealing piece 7 to the cooling section 5 near the proximal lip end 1; the cooling section 5 is provided with an air inlet 51 near the filtering section 6, and the air inlet 51 passes through the wrapping piece 3.

[0050] The outer wrapping member 3, located between the sealing member 7 and the cooling section 5 near the proximal lip end 1, is designed with a low-permeability structure, with an air permeability controlled between 10 CU and 550 CU. This low-permeability structure helps control the flow rate and temperature of the aerosol, preventing it from dissipating too quickly while also reducing interference from outside air, ensuring aerosol quality and user experience.

[0051] In one embodiment, at least one air inlet 51 is provided in the cooling section 5 near the filtration section 6, extending through the wrapping member 3. The air inlet 51 allows external air to enter, contributing to aerosol dilution and temperature regulation, and potentially helping to adjust the flow dynamics of the aerosol.

[0052] In one embodiment, the distance between the air inlet 51 and the filter section ranges from 15 mm to 25 mm, for example, 15 mm, 18 mm, 20 mm, 22 mm, 24 mm, 25 mm, etc.

[0053] In one embodiment, the shape of the air inlet 51 can be circular, oval, square, etc.

[0054] In one embodiment, there may be one or more air inlet holes 51. In the case of multiple air inlet holes, the apertures of the multiple air inlet holes may be the same or different.

[0055] In one embodiment, the air inlet holes include a plurality of holes, and the plurality of air inlet holes are evenly distributed along the circumference of the wrapper. For example, the plurality of air inlet holes may be formed in a row around the same ring layer, or in multiple rows of air inlet holes respectively distributed around the same ring layer.

[0056] The cooling section 5 in the aerosol-generating article 100 has an air passage extending from one end thereof proximal to the smoking section to the end thereof proximal to the filtering section. In one embodiment, the cooling section 5 in the aerosol-generating article 100 can be a space formed by the wrapping member 3, or it can be a component. For example, it can be a component having an air passage extending axially proximal to the wrapping member. In this case, the air inlet communicates with the exterior and the air passage of the component.

[0057] In one embodiment, the cooling section 5 may be a hollow tubular structure, and the air inlet 51 on the cooling section 5 runs through the cooling section 5 .

[0058] The aerosol flows from the smoking section through the cooling section to the filtering section for filtration and then is inhaled. The aerosol is cooled in the cooling section. At the same time, the air inlet guides the external air into the cooling section to mix with the aerosol, diluting the aerosol and cooling it at the same time.

[0059] In one embodiment, the diameter of the air inlet hole 51 is 0.01 mm to 0.50 mm, for example, 0.01 mm, 0.05 mm, 0.10 mm, 0.30 mm, 0.50 mm, etc.

[0060] In one embodiment, the cross-sectional area of ​​the air inlet 51 is not greater than 0.25 mm 2 .

[0061] In one embodiment, the air permeability of the air inlet 51 as a whole is 100 CU to 1000 CU, for example, 100 CU, 200 CU, 300 CU, 500 CU, 800 CU, 1000 CU, etc.

[0062] In one embodiment, the wrapping member 3 includes a first wrapping layer 31 and a second wrapping layer 32 ; in a low air permeability structure, the second wrapping layer 32 is stacked on the outer layer of the first wrapping layer 31 ; the air permeability of the first wrapping layer 31 is greater than that of the second wrapping layer 32 .

[0063] In one embodiment, the wrapping member 3 includes a first wrapping layer 31 and a second wrapping layer 32. The first wrapping layer 31 wraps around the outer periphery of the smoking section and the cooling section, while the second wrapping layer 32 wraps around the entire periphery of the aerosol generating article. Thus, the outer peripheries of the smoking section and the cooling section are both wrapped with the first wrapping layer 31 and the second wrapping layer 32. The second wrapping layer 32 is laminated on the outer periphery of the first wrapping layer 31. The second wrapping layer 32 and the first wrapping layer 31 form a low-permeability structure around the smoking section and the cooling section. This provides improved physical strength and structural stability, while also facilitating manufacturing.

[0064] The first wrapping layer 31 and the second wrapping layer 32 may be the same or different.

[0065] In one embodiment, the first wrapping layer 31 and the second wrapping layer 32 have different air permeabilities. The second wrapping layer 32 is stacked on the outer layer of the first wrapping layer 31, and the air permeability of the first wrapping layer 31 is greater than that of the second wrapping layer 32. The inner wrapping layer (the first wrapping layer 31) has a higher air permeability, while the outer wrapping layer (the second wrapping layer 32) has a relatively lower air permeability. The low air permeability of the outer layer helps to reduce the impact of the external environment, such as humidity, on the aerosol-generating product, and can also reduce the large amount of cold air entering, which affects the mouth feel during inhalation and the stability of aerosol generation. At the same time, the combination of different air permeabilities of the first wrapping layer 31 and the second wrapping layer 32 makes it easy to consider both air permeability requirements and moisture-proof requirements during design.

[0066] In one embodiment, the air permeability of the first wrapping layer 31 is 500 CU to 1000 CU; for example, it can be 500 CU, 800 CU, 900 CU, 1000 CU, etc.

[0067] The air permeability of the second wrapping layer 32 is 20 CU to 200 CU, for example, 20 CU, 80 CU, 90 CU, 100 CU, 150 CU, 200 CU, etc.

[0068] In one embodiment, the pressure drop of the filtration section ranges from 300 Pa to 600 Pa. For example, it can be 300 Pa, 400 Pa, 600 Pa, and so on.

[0069] In one embodiment, the first wrapping layer 31 is made of plug-wrap paper, while the second wrapping layer 32 is made of tipping paper. Plug-wrap paper has good formability. The tipping paper of the first wrapping layer 31 has good printability, certain water resistance, and wet strength. The second wrapping layer 32 provides enhanced physical protection and decorative effects.

[0070] First wrapping layer 31 Second wrapping layer 32 In one embodiment, the overall draw resistance of the aerosol-generating article 100 is 600 Pa to 1000 Pa. For example, it may be 600 Pa, 800 Pa, 900 Pa, 1000 Pa, and so on.

[0071] The present invention is further described below through specific examples. However, it should be understood that these examples are only used for more detailed description and should not be understood as limiting the present invention in any form.

[0072] Example 1

[0073] In this embodiment, an aerosol-generating product is provided. The aerosol-generating product includes a cylindrical wrapping member, and a smoking section, a cooling section, and a filtering section sequentially arranged in the wrapping member from the distal lip end to the proximal lip end; the aerosol-generating product also includes a blocking member; the blocking member cooperates with the wrapping member to seal and block the side of the smoking section near the distal lip end. The wrapping member 3 includes a first wrapping layer 31 and a second wrapping layer 32; the first wrapping layer 31 wraps around the periphery of the smoking section and the cooling section; the second wrapping layer 32 wraps around the periphery of the entire aerosol-generating product; thus, the periphery of the smoking section and the cooling section are simultaneously wrapped with the first wrapping layer 31 and the second wrapping layer 32. The second wrapping layer 32 is stacked on the outer layer of the first wrapping layer 31, and the second wrapping layer 32 and the first wrapping layer 31 on the periphery of the smoking section and the cooling section form a low-air-permeability structure.

[0074] The first wrapping layer is made of plug-wrapped paper;

[0075] The material of the second wrapping layer is tipping paper.

[0076] Among them, the air permeability of tipping paper is 150-250CU, the air permeability of forming paper is 1000-3000CU, and the pressure drop range of the filtration section is 500-700Pa.

[0077] Example 2

[0078] In this embodiment, an aerosol generating product is provided. Its structure is substantially the same as that of Example 1. The air permeability of the tipping paper is 20-150 CU, the air permeability of the forming paper is 1000-3000 CU, and the pressure drop in the filter section is in the range of 600-700 Pa.

[0079] Example 3

[0080] In this embodiment, an aerosol generating product is provided. Its structure is basically the same as that of embodiment 1, its tipping paper has an air permeability of 150-250 CU, its forming paper has an air permeability of 500-1000 CU, and the pressure drop range of the filter section is 700-900 Pa.

[0081] Example 4

[0082] In this embodiment, an aerosol generating product is provided, which has a structure substantially the same as that of embodiment 1, wherein the tipping paper has an air permeability of 20-150 CU, the shaping paper has an air permeability of 500-1000 CU, and the absorption resistance range is 800-1200 Pa.

[0083] Based on the technical solutions of Examples 1 to 4, a three-factor three-level orthogonal experimental table was designed, wherein the three factors were selected as parameters such as tipping paper air permeability (A), plugging paper air permeability (B), and filter section pressure drop (C), as shown in Table 1.

[0084] Table 1. Orthogonal experimental plan

[0085]

[0086] Experimental Method: A heating device was used to test the aerosol-generating products prepared in Examples 1-4. Parameters for the aerosol-generating products, such as tipping paper air permeability (A), plug wrap air permeability (B), and filtration section pressure drop (C), were designed according to the orthogonal experimental scheme in Table 1. After a single puff, the aerosol residue within the heating device was observed. A comprehensive atomizer testing machine was also used to measure the smoke concentration of the aerosol-generating products prepared in different examples. The parameters are shown in Table 2.

[0087] Table 2. Smoke volume test parameters of atomizer comprehensive test machine

[0088]

[0089] Experimental results:

[0090] Table 3. Orthogonal test scheme and results

[0091]

[0092] It should be noted that the heading "Quantity" in Table 3 refers to Philip Morris International's "quantity of aerosol-generating products used when aerosol residue appears in the IQOS device."

[0093] analyze:

[0094] (1) From the experimental results in Table 3, it can be seen that RB>RA>RC, indicating that the influence of the three factors on the aerosol residue after the device is sucked is: the air permeability of the plug paper>the air permeability of the tipping paper>the pressure drop of the filter section.

[0095] (2) According to the test results in Table 3, the smoke concentration generated by the aerosol generating product is between 80% and 92%, and the overall smoke volume is stable.

[0096] (3) Combined with the smoke content test data, when the air permeability of the tipping paper is in the range of 20-150 CU, the air permeability of the forming paper is in the range of 500-1000 CU, and the pressure drop of the filter section is in the range of 500-700 Pa, the overall effect of aerosol residue and smoke volume is better.

[0097] (4) The auxiliary material combination scheme is A1B1C2, that is, the air permeability of the tipping paper is 20CU, the air permeability of the plugging paper is 500CU, and the pressure drop of the filter section is 700Pa. The overall effect of aerosol residue and smoke volume is the best. Among them, A1, B1, and C2 correspond to the factors (A / B / C)-levels (1 / 2 / 3) in Table 1, respectively.

[0098] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An aerosol-generating product, characterized in that having a proximal labial end and a distal labial end; The aerosol generating article comprises a cylindrical wrapper, and a smoking section, a cooling section and a filtering section sequentially arranged in the wrapper from the distal lip end to the proximal lip end; It also includes a blocking piece; the blocking piece cooperates with the wrapping piece to seal and block the side of the smoking section close to the distal lip end; Wherein, at least the wrapping piece from the blocking piece to the outer periphery of one end of the smoking section close to the proximal lip end is configured as a low air permeability structure, and the air permeability of the low air permeability structure is 10 CU to 550 CU.

2. The aerosol-generating article according to claim 1, wherein The wrapping member is provided with the low air permeability structure at the periphery of the end from the blocking member to the cooling section close to the proximal lip end; The cooling section is provided with at least one air inlet hole at a portion close to the filtering section, and the air inlet hole passes through the wrapping piece.

3. The aerosol-generating article according to claim 2, wherein The air inlet holes include a plurality of; The plurality of air inlet holes are evenly distributed along the circumference of the wrapping piece.

4. The aerosol-generating article according to claim 2, wherein The diameter of the air inlet hole is 0.01mm to 0.50mm; And / or, the cross-sectional area of ​​the air inlet is not greater than 0.25 mm 2 .

5. The aerosol-generating article according to claim 2, wherein The distance between the air inlet and the filter section is in the range of 15 mm to 25 mm.

6. The aerosol-generating article according to claim 2, wherein The air permeability of the air inlet is 100CU to 1000CU.

7. An aerosol-generating article according to any one of claims 1 to 6, wherein The wrapping member includes a first wrapping layer and a second wrapping layer; In the low-air-permeability structure, the second wrapping layer is laminated on the outer layer of the first wrapping layer; The air permeability of the first wrapping layer is greater than that of the second wrapping layer.

8. The aerosol-generating article according to claim 7, wherein The air permeability of the first wrapping layer is 500CU to 1000CU; The air permeability of the second wrapping layer is 20CU to 200CU; The pressure drop of the filtration section is 300Pa to 600Pa.

9. The aerosol-generating article according to claim 7, wherein The material of the first wrapping layer is plug-wrapped paper; The second wrapping layer is made of tipping paper.

10. The aerosol-generating article of claim 7, wherein The aerosol generating product has a draw resistance of 600 Pa to 1000 Pa.

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