Aerosol generating product and preparation method therefor, and aerosol generating system

Abstract

An aerosol generating product (100) and a preparation method therefor, and an aerosol generating system. An aerosol substrate section (30) of the aerosol generating product (100) comprises a vapor generating section (32) and a flavor-carrying section (34); the flavor-carrying section (34) comprises a meltable solid carrier and a flavor; the meltable solid carrier has a molten state and a solid state, being solid at room temperature and being molten when heated; and the flavor-carrying section (34) and the vapor generating section (32) are isolated from each other.

Description

Aerosol-generating article and method of manufacturing the same, aerosol-generating system

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202411147568.6, filed on August 20, 2024, entitled “Aerosol-generating article and method of manufacturing the same, aerosol-generating system”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of novel tobacco technology, in particular to an aerosol-generating article and method of manufacturing the same, aerosol-generating system. BACKGROUND

[0004] The heat-not-burn cigarette product, as an important part of the current new cigarette product, usually includes a filter segment, a temperature reduction support segment and a tobacco segment. By heating the tobacco material of the tobacco segment in a low temperature environment and controlling the heating temperature, the tobacco segment does not burn, which can effectively reduce the tar and other harmful substances generated by the burning of traditional cigarettes.

[0005] To solve this problem, although the inner wall of the paper tube can be coated with oil-proof paper and the amount of flavoring used can be reduced, the coating of oil-proof paper on the inner wall of the paper tube can only slow down the leakage of flavoring and smoking material for a certain period of time, and the slowing effect usually lasts for a short time. In addition, reducing the amount of flavoring used will reduce the aroma concentration of the heat-not-burn cigarette product, affecting the use experience. SUMMARY

[0006] The present application aims to provide an aerosol-generating article and method of manufacturing the same, aerosol-generating system, which aims to solve the problems of high cost and pollution of the tube wall of the existing heat-not-burn cigarette product.

[0007] To achieve the above purpose, the present application provides an aerosol-generating article, which comprises an aerosol base material segment, the aerosol base material segment comprising a smoking segment and a flavor carrying segment arranged along the length direction of the aerosol-generating article, and a coating layer wrapped at least around the outer circumferential surface of the smoking segment and the flavor carrying segment; the flavor carrying segment comprises a fusible solid carrier and a flavoring attached to the fusible solid carrier.

[0008] In some embodiments, the aerosol-generating article further comprises a first solid piece arranged between the smoking segment and the flavor carrying segment, and the first solid piece has a first airflow channel penetrating through the length direction thereof.

[0009] In some embodiments, the tobacco core material of the smoking segment is in the form of particles, flakes or filaments.

[0010] In some embodiments, the aerosol generating article further comprises a gas permeable sealing layer, the sealing layer being sealed to the distal end of the cladding layer.

[0011] In some embodiments, the fusible solid carrier is in a solid state at room temperature and is in a molten state after being heated.

[0012] In some embodiments, the fusible solid carrier comprises polyethylene glycol and / or carnauba wax.

[0013] The polyethylene glycol is selected from at least one of polyethylene glycol 200, polyethylene glycol 300, polyethylene glycol 400, polyethylene glycol 600, polyethylene glycol 800, polyethylene glycol 1000, polyethylene glycol 1500, polyethylene glycol 2000, polyethylene glycol 3000, polyethylene glycol 4000, polyethylene glycol 6000, polyethylene glycol 8000, polyethylene glycol 10000, and polyethylene glycol 20000.

[0014] In some embodiments, the length of the flavor carrying segment is 5-13 mm.

[0015] In some embodiments, the ratio of the length of the flavor carrying segment to the length of the smoking segment is 0.4-0.8.

[0016] In some embodiments, the total length of the flavor carrying segment and the smoking segment is no more than 25 mm.

[0017] In some embodiments, the aerosol generating article further comprises a filter segment and a temperature reducing segment, the cladding layer further cladding the filter segment, and the temperature reducing segment being at least part of a cavity defined by the filter segment, the aerosol substrate segment, and the cladding layer.

[0018] In some embodiments, the aerosol generating article further comprises a second solid member cladded by the cladding layer and located between the temperature reducing segment and the aerosol substrate segment, the second solid member having a second airflow channel extending through the length of the second solid member.

[0019] In some embodiments, the flavor carrying segment is located on the side of the smoking segment closer to the second solid member.

[0020] In some embodiments, the smoking segment is located on the side of the flavor carrying segment closer to the second solid member.

[0021] In some embodiments, the length of the first solid member and the second solid member are independently 3.0-7.0 mm.

[0022] The present application also provides a method for preparing the aerosol generating article described above, comprising:

[0023] providing an empty tube with one end sealed;

[0024] The smoking segment and the flavor carrying segment are filled into the open end of the hollow tube to obtain the aerosol generating article.

[0025] In some embodiments, the step of filling the smoking segment and the flavor carrying segment into the open end of the hollow tube to obtain the aerosol generating article comprises:

[0026] one of the smoking segment and the flavor carrying segment, the first solid piece, the other of the smoking segment and the flavor carrying segment, and the second solid piece are sequentially filled into the open end of the hollow tube.

[0027] The filter segment is filled and is spaced apart from the second solid piece.

[0028] In the process of filling the flavor carrying segment into the hollow tube, a solid fusible carrier with flavor attached is injected into the hollow tube in a molten state, or a shaped solid fusible carrier with flavor attached is filled.

[0029] The application also provides an aerosol generating system comprising the aerosol generating article and a heater adapted to the aerosol generating article.

[0030] Compared with the related art, the application has the following advantages:

[0031] The aerosol substrate segment of the aerosol generating article provided by the application comprises a smoking segment and a flavor carrying segment, the flavor carrying segment comprises a solid fusible carrier and a flavor, and the solid fusible carrier has a molten state and a solid state. At room temperature, the solid state is used to "lock" the flavor in the medium, so that the flavor carrying segment and the smoking segment are independent of each other. This can avoid the phenomenon that the flavor pollutes the tube wall during storage of the aerosol generating article. In addition, the flavor carrying segment and the smoking segment are isolated, so that the smoking segment can be kept as dry as possible and is not affected by moisture. The aerosol generating article can further adsorb the flavor without increasing the weight of the smoking segment, so that the aroma during smoking is more concentrated. The aerosol generating article can release the aroma more evenly, so that the aroma is not released rapidly at the beginning of heating. The flavor in the aerosol generating article is not easy to volatilize, so that the aroma can be locked for a longer time. After the flavor carrying segment is melted, the flavor begins to volatilize, and the flavor carrying segment migrates to a certain position. The space occupied by the flavor carrying segment can be used as a cooling channel, which can prolong the cooling section and improve the cooling effect.

[0032] In addition, the flavor carrying segment and the smoking segment are isolated, so that the smoking segment can be kept as dry as possible and is not affected by moisture. The aerosol generating article can further adsorb the flavor without increasing the weight of the smoking segment, so that the aroma during smoking is more concentrated. The aerosol generating article can release the aroma more evenly, so that the aroma is not released rapidly at the beginning of heating. The flavor in the aerosol generating article is not easy to volatilize, so that the aroma can be locked for a longer time. After the flavor carrying segment is melted, the flavor begins to volatilize, and the flavor carrying segment migrates to a certain position. The space occupied by the flavor carrying segment can be used as a cooling channel, which can prolong the cooling section and improve the cooling effect.

[0033] The preparation method of the aerosol generating article provided by the application adopts a filling process, which is simple to operate and easy to mass-produce.

[0034] The aerosol generating system provided by the application generates aerosol with rich aroma and good cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as limiting the scope of the present application.

[0036] Fig. 1 is a structural schematic diagram of an embodiment of an aerosol generating article of the present application;

[0037] Fig. 2 is a structural schematic diagram of another embodiment of an aerosol generating article of the present application;

[0038] Fig. 3 is a flow schematic diagram of an embodiment of a preparation method of an aerosol generating article of the present application;

[0039] Fig. 4 is a structural schematic diagram of an aerosol generating system of the present application.

[0040] Reference signs:

[0041] 100-aerosol generating article; 10-filter segment; 20-temperature reduction segment; 30-aerosol substrate segment; 32-smoking segment; 34-scent carrying segment; 40-first solid; 50-second solid; 60-coating layer; 62-sealing layer; 300-aerosol generating system; 200-heating device; 210-receiving groove; 220-heating assembly. DETAILED DESCRIPTION

[0042] As used herein the term:

[0043] “Prepared from” is synonymous with “comprising”. The terms “comprising”, “including”, “having” or “containing” or any other similar forms are intended to cover non-exclusive inclusions. For example, a composition, step, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but can include other elements not expressly listed or inherent to such composition, step, method, article, or apparatus.

[0044] The conjunction “consisting of’ excludes any element, step, or ingredient not specified. If used in a claim, this phrase shall exclude any element not specified, but shall not exclude elements required under patent law. When the phrase “consisting of’ follows the introductory language “comprising” or “comprising,” the contents of the clause that follows shall be construed as consisting of the elements only listed in that clause, and not of any other elements.

[0045] When expressing amounts, concentrations, or other values or parameters, either alone or in relative terms (e.g., as used in percentage, parts per thousand, or parts per million), the use of the term "about" in connection with such amounts, concentrations, or other values or parameters is intended to mean that amounts, concentrations, or other values or parameters recited can be subject to variation understood to be attributable to such typical variability in measuring techniques, sample preparation, and other experimental procedures.

[0046] The use of "and / or", "and / or" is used to indicate that one or both of the stated conditions can occur, for example, A and / or B includes (A and B) and (A or B).

[0047] The related heat-not-burn cigarette product adds flavoring in the tobacco segment during the production process, and the weight of the flavoring increases the mass of the tobacco segment, and the tobacco segment that has adsorbed enough flavoring also pollutes the pipe wall of the heat-not-burn cigarette product.

[0048] To solve the problems of the related art, the present application provides an aerosol generating product 100, as shown in FIG. 1 and FIG. 2, which includes an aerosol substrate segment 30, the aerosol substrate segment 30 including a smoking segment 32 and a flavor carrying segment 34 arranged along the length direction of the aerosol generating product 100, and a cladding layer 60 at least wrapped around the outer circumferential surface of the smoking segment 32 and the flavor carrying segment 34; the flavor carrying segment 34 including a fusible solid carrier and flavoring attached to the fusible solid carrier.

[0049] The cladding layer 60 is made of a material with sufficient hardness to wrap and support the filler without deformation, and the material of the cladding layer 60 can be a paper tube, an aluminum foil tube, an aluminum foil paper tube, a ceramic tube, a silicone rubber tube, a temperature-resistant resin tube, etc. The arrangement order of the smoking segment 32 and the flavor carrying segment 34 is not limited, and the smoking segment 32 can be arranged upstream of the flavor carrying segment 34 or downstream of the flavor carrying segment 34. The upstream of the aerosol suction direction is the distal lip end, and the downstream of the aerosol suction direction is the proximal lip end.

[0050] The smoking segment 32 is a smoking core material, which can be, for example, a tobacco raw material, a herb, or a fiber paper substrate adsorbed with a smoking agent, etc. The form of the smoking core material can be granular, slurry, filament, flake, etc. The smoking core material of the present application can be particularly granular and slurry, which is beneficial to the filling process.

[0051] The fragrance-carrying section 34 comprises a meltable solid carrier and a fragrance attached to the meltable solid carrier. The fragrance can be a solid fragrance or a liquid fragrance. The liquid fragrance is adsorbed to the meltable solid carrier, and the solid fragrance is wrapped in the meltable solid carrier. A smoke generator can also be mixed in the meltable solid carrier. The smoke generator can be selected from propylene glycol, glycerol, glycerol triacetate, glycerol diacetate, and the like. The meltable solid carrier has a melting state and a solid state. At room temperature, the meltable solid carrier is in the solid state. After heating, the meltable solid carrier is in the melting state, which is a liquid.

[0052] Therefore, the aerosol generating article 100 of the present application has the fragrance-carrying section 34 in the solid state at room temperature without use, and the fragrance is "locked" in the solid medium, which can avoid the phenomenon of fragrance polluting the pipe wall. The fragrance is not added to the tobacco core material, which does not increase the weight of the smoke-generating section 32 and reduces the cost. When the aerosol generating article 100 is heated for use, the fragrance-carrying section 34 is in the melting state, which is a liquid, so as to release the fragrance.

[0053] The aerosol generating article 100 provided by the present application comprises a smoke-generating section 32 and a fragrance-carrying section 34. The fragrance-carrying section 34 comprises a meltable solid carrier and a fragrance. The meltable solid carrier has a melting state and a solid state. At room temperature, the meltable solid carrier is in the solid state. After heating, the meltable solid carrier is in the melting state. When not used at room temperature, the fragrance is "locked" in the solid medium, so that the fragrance-carrying section 34 and the smoke-generating section 32 are independent of each other. This can avoid the phenomenon of fragrance polluting the pipe wall. In addition, since the fragrance-carrying section 34 is isolated from the smoke-generating section 32, the grammage of the smoke-generating section 32 can be reduced, thereby reducing the cost.

[0054] In addition, the fragrance-carrying section 34 is isolated from the smoke-generating section 32, so that the smoke-generating section 32 can be kept as dry as possible and is not damp. The fragrance-carrying section 34 can further adsorb the fragrance without increasing the weight of the smoke-generating section 32, so that the aroma is more intense during the smoking process. The fragrance-carrying section 34 can release the aroma more uniformly, so that the aroma is not released rapidly at the beginning of heating. The fragrance in the fragrance-carrying section 34 is not easy to volatilize, so that the fragrance can be locked for a longer time. After the fragrance-carrying section 34 is melted, the fragrance begins to volatilize. The fragrance-carrying section 34 will migrate to a certain position. The space occupied by the fragrance-carrying section 34 can be used as a cooling channel, which can extend the cooling section and improve the cooling effect.

[0055] In some embodiments, the meltable solid carrier is in the solid state at room temperature and is in the liquid state at a temperature of 60°C or above. The meltable solid carrier comprises one or more of polyethylene glycol and carnauba wax. Both polyethylene glycol and carnauba wax are phase change materials. At room temperature, polyethylene glycol and carnauba wax are solid. After heating, polyethylene glycol and carnauba wax are in the melting state, which is a liquid. The meltable solid carrier is uniformly mixed with the fragrance in the melting state. The fragrance comprises an odoriferous substance, such as various fruit flavors and mint style characteristic fragrances.

[0056] Polyethylene glycol is a polymer of ethylene glycol containing α, ω-bis-terminal hydroxyl groups, and in some embodiments, the polyethylene glycol is selected from at least one of polyethylene glycol 200, polyethylene glycol 300, polyethylene glycol 400, polyethylene glycol 600, polyethylene glycol 800, polyethylene glycol 1000, polyethylene glycol 1500, polyethylene glycol 2000, polyethylene glycol 3000, polyethylene glycol 4000, polyethylene glycol 6000, polyethylene glycol 8000, polyethylene glycol 10000, polyethylene glycol 20000.

[0057] In some embodiments, the length (dimension in the length direction of the aerosol generating article 100) of the flavor carrying segment 34 is 5-13 mm, for example, can be 5 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.8 mm, 5.9 mm, 6.0 mm, 6.1 mm, 6.2 mm, 6.3 mm, 6.4 mm, 6.5 mm, 6.6 mm, 6.7 mm, 6.8 mm, 6.9 mm, 7.0 mm, 7.5 mm, 8.0 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, 10.5 mm, 11 mm, 11.5 mm, 12 mm, 12.5 mm or 13 mm, so that the mass of the flavor carrying segment 34 is about 100 mg, for example, 80-120 mg.

[0058] In some embodiments, the ratio of the length of the flavor carrying segment 34 to the length of the smoking segment 32 is 0.4-0.8, for example, can be 0.4, 0.5, 0.6, 0.7 or 0.8. The total length of the flavor carrying segment 34 and the smoking segment 32 is not more than 25 mm.

[0059] The ratio of the length of the flavor carrying segment 34 to the length of the smoking segment 32 in the above range can ensure that the aerosol generating article 100 has appropriate aroma concentration, suitable draw resistance and controlled cost. If the ratio of the length of the flavor carrying segment 34 to the length of the smoking segment 32 is too high, the gram weight cannot be guaranteed, which leads to distortion of the aroma of the smoking segment itself, unnatural aerosol aroma and increased draw resistance. If the ratio of the length of the flavor carrying segment 34 to the length of the smoking segment 32 is too low, the gram weight is too large and the cost is too high.

[0060] The aerosol generating article 100 of the present application further comprises a first solid 40 between the smoking segment 32 and the flavor carrying segment 34, the first solid 40 having a first airflow passage through its length direction to heat the molten flavor carrying segment 34. Since the flavor carrying segment 34 is in a molten state after heating, the first solid 40 plays a limiting role on one hand to prevent the molten flavor carrying segment 34 from flowing out towards the lip end, and on the other hand to provide a passage for the aerosol, thereby also playing a certain role in cooling and filtering. Therefore, the first solid 40 can have a structure with a circumferential groove or a central hole, and can also be a breathable material such as plant fiber, silica gel, silicon dioxide or other high polymer materials.

[0061] In some embodiments, referring to FIG. 1 and FIG. 2, the cladding layer 60 can be sealed at its distal end by a sealing layer 62 to facilitate the loading of the smoking segment 32 and the flavor carrying segment 34. The sealing layer 62 is a gas permeable structure, which can be, for example, a perforated aluminum foil, a high gas permeability paper, a film-coated paper, or a high-temperature resistant plastic film. The cladding layer 60 can be a tubular structure with an outer diameter of 5mm-20mm, for example, 6mm-7mm, and a wall thickness of 0.1mm-1mm. The cladding layer 60 can be a thick paper tube with a wall thickness of 0.15mm or more and a length of 30mm-100mm, for example, 45mm, 50mm, covering the entire outer circumferential surface of the aerosol generating article 100.

[0062] In some embodiments, referring to FIG. 1 and FIG. 2, the aerosol generating article 100 further comprises a filter segment 10 and a cooling segment 20, which are arranged in the order of the filter segment 10, the cooling segment 20, and the aerosol substrate segment 30 from upstream to downstream in the aerosol drawing direction. The cladding layer 60 also covers the outer circumferential surface of the filter segment 10, and the cooling segment 20 is at least partially defined by the filter segment 10, the aerosol substrate segment 30, and the cladding layer 60.

[0063] The cooling segment 20 is configured to provide a space for mixing and cooling of the aerosol, and to cool the aerosol generated by the aerosol substrate segment 30 to meet the requirements for aerosol drawing. The cooling segment 20 can be a hollow tube or a tubular element with holes, or have a structure and material similar to those of the first solid element 40.

[0064] The filter segment 10 is configured to filter and further cool or filter and adsorb harmful substances in the aerosol. The filter segment 10 can be a cellulose acetate rod, a polypropylene fiber rod, a polylactic acid rod, or a paper filter rod.

[0065] In some embodiments, referring to FIG. 1 and FIG. 2, the aerosol generating article 100 further comprises a second solid element 50 covered by the cladding layer 60 and located between the cooling segment 20 and the aerosol substrate segment 30. The second solid element 50 has a second airflow passage extending through its length direction.

[0066] The second solid element 50 has a function similar to that of the first solid element 40, which can serve as a positioning element and allow the passage of aerosol, thereby also serving as a cooling and filtering element. Therefore, the structure and material of the second solid element 50 can be the same as those of the first solid element 40.

[0067] In some embodiments, the length (dimension in the length direction of the aerosol generating article 100) of the first and second solid elements 40 and 50 is independently 3.0-7.0 mm, for example, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 6.6 mm, 6.7 mm, 6.8 mm, 6.9 mm, or 7.0 mm, preferably 3.0-5.5 mm. The length of the first and second solid elements 40 and 50 within the above range can balance their positioning, ventilation, and adsorption and filtration effects. If the length of the first and second solid elements 40 and 50 is too small, their adsorption effect will be reduced, the difficulty of manufacturing the first and second solid elements 40 and 50 will be increased, the corresponding cost will be increased, and the difficulty of installing the solid elements will also be increased. If the length of the first and second solid elements 40 and 50 is too large, the adsorption effect will be increased, the resistance of the aerosol generating article 100 will be increased, the smoking experience will be poor, and the amount of aroma and smoke will be reduced. In addition, increasing the length of the solid elements will increase the cost of the solid elements and the cost of the aerosol generating article 100.

[0068] In some embodiments, referring to FIG. 1, the aroma carrying segment 34 is arranged on the side of the smoke generating segment 32 close to the second solid element 50, i.e., the aroma carrying segment 34 is arranged at one end close to the cooling segment 20, and the first and second solid elements 40 and 50 are arranged on the two sides of the aroma carrying segment 34. As shown in FIG. 1, the structure of the aerosol generating article 100 of the present embodiment is, from upstream to downstream in the direction of aerosol suction, the sealing layer 62, the smoke generating segment 32, the first solid element 40, the aroma carrying segment 34, the second solid element 50, the cooling segment 20, and the filter segment 10. Arranging the first solid element 40 downstream of the smoke generating segment 32 can position the aroma carrying segment 34, and arranging the second solid element 50 downstream of the aroma carrying segment 34 in a solid state can prevent the aroma carrying segment 34 in a molten state from flowing to the filter segment 10 if it is tilted during heating and use by a consumer.

[0069] In some embodiments, referring to FIG. 2, the smoke generating segment 32 is arranged on the side of the aroma carrying segment 34 close to the second solid element 50, i.e., the smoke generating segment 32 is arranged at one end close to the cooling segment 20, and the first and second solid elements 40 and 50 are arranged on the two sides of the smoke generating segment 32. As shown in FIG. 2, the structure of the aerosol generating article 100 of the present embodiment is, from upstream to downstream in the direction of aerosol suction, the sealing layer 62, the aroma carrying segment 34, the first solid element 40, the smoke generating segment 32, the second solid element 50, the cooling segment 20, and the filter segment 10. Arranging the first solid element 40 downstream of the aroma carrying segment 34 can position the aroma carrying segment 34, and arranging the second solid element 50 downstream of the smoke generating segment 32 can isolate and position the smoke core material of the smoke generating segment 32.

[0070] The application also provides a preparation method of the above aerosol generating article, referring to FIG. 3, comprising:

[0071] S100: providing an empty tube with one end sealed.

[0072] The empty tube is a tubular cladding layer 60 made of a material with sufficient thickness or hardness to wrap and support the filler without deformation. The material of the empty tube can be a thick paper tube, an aluminum foil tube, an aluminum foil paper tube, a ceramic tube, a silicone rubber tube, a temperature-resistant resin tube, etc. The cladding layer 60 can be sealed by a sealing layer 62 to block the distal lip end. The empty tube can be sealed by perforated aluminum foil, high-air-permeability paper, film-coated paper, or high-temperature-resistant plastic film, etc. The sealed end can be used for gas entry, for example, air can be sucked in from the sealed end, and hot air can also enter from the sealed end to heat the aerosol base material section 30. For example, the empty tube can be a thick paper tube, the wall thickness can be 0.15 mm or more, and the length can be 30-100 mm, for example, 45 mm, 50 mm.

[0073] S200: loading the smoke generating section and the fragrance carrying section into the open end of the empty tube.

[0074] The order of loading the smoke generating section 32 and the fragrance carrying section 34 is not limited, for example, the smoke generating section 32 can be filled first, and then the fragrance carrying section 34 can be loaded, or the fragrance carrying section 34 can be loaded first, and then the smoke generating section 32 can be filled.

[0075] The fragrance carrying section 34 can be filled in a molten state, and the shape of the solidified fragrance carrying section 34 can be gel-like, or irregular or regular solid-like such as granular or sheet-like; or a mold can be used to make the fragrance carrying section 34, and after the fragrance carrying section 34 is formed, the mold is removed, and the solid fragrance carrying section 34 is loaded into the empty tube by external force.

[0076] The preparation method of the aerosol generating article provided by the application can use a filling process to sequentially load each section into the empty tube to assemble the aerosol generating article, which is simple to operate, easy to mass-produce, and especially suitable for the preparation of granular and slurry type tobacco core materials.

[0077] In some embodiments, the preparation method of the aerosol generating article comprises:

[0078] sequentially loading one of the smoke generating section and the fragrance carrying section, the first solid piece, the other of the smoke generating section and the fragrance carrying section, and the second solid piece into the open end of the empty tube;

[0079] loading the filter section and spacing it from the second solid piece;

[0080] Wherein, when the fragrance-carrying segment is filled into the empty tube, a fragrance-attached meltable solid carrier in a molten state can be injected into the empty tube, or a shaped fragrance-attached meltable solid carrier is filled into the empty tube.

[0081] In one embodiment, the smoking segment 32 is located at the upstream end of the fragrance-carrying segment 34, and the fragrance-carrying segment 34 is injected into the empty tube in a molten state, as shown in FIG. 1. The preparation method comprises the following steps:

[0082] The tobacco core material is filled into one end of the empty tube close to the seal, to obtain the smoking segment 32;

[0083] The first solid 40 is filled on the smoking segment 32;

[0084] The fragrance-attached meltable solid carrier in a molten state is injected on the first solid 40, to obtain the fragrance-carrying segment 34;

[0085] The second solid 50 is filled on the fragrance-carrying segment 34;

[0086] The cavity is reserved on the second solid 50 as the cooling segment 20;

[0087] The filter segment 10 is filled on the cooling segment 20, to obtain the aerosol generating article 100.

[0088] In another embodiment, the smoking segment 32 is located at the upstream end of the fragrance-carrying segment 34, and the fragrance-carrying segment 34 is filled into the empty tube after being shaped in advance, as shown in FIG. 1. The preparation method comprises the following steps:

[0089] The tobacco core material is filled into one end of the empty tube close to the seal, to obtain the smoking segment 32;

[0090] The first solid 40 is filled on the smoking segment 32;

[0091] The shaped fragrance-attached meltable solid carrier, i.e. the fragrance-carrying segment 34, is filled on the first solid 40;

[0092] The second solid 50 is filled on the fragrance-carrying segment 34;

[0093] The cavity is reserved on the second solid 50 as the cooling segment 20;

[0094] The filter segment 10 is filled on the cooling segment 20, to obtain the aerosol generating article 100.

[0095] In yet another embodiment, the smoking segment 32 is located at the downstream end of the fragrance-carrying segment 34, and the fragrance-carrying segment 34 is injected into the empty tube in a molten state, as shown in FIG. 2. The preparation method comprises the following steps:

[0096] injecting the molten flavor-attached meltable solid carrier into the hollow tube near the end of the seal;

[0097] loading a first solid filler 40 on the flavor-attached segment 34;

[0098] loading a smoking material on the first solid filler 40 to obtain a smoking segment 32;

[0099] loading a second solid filler 50 on the smoking segment 32;

[0100] reserving a cavity on the second solid filler 50 as a cooling segment 20;

[0101] loading a filter segment 10 on the cooling segment 20 to obtain the aerosol generating article 100.

[0102] In another embodiment, the smoking segment 32 is located at the downstream end of the flavor-attached segment 34, and the flavor-attached segment 34 is loaded into the hollow tube after being pre-formed, as shown in FIG. 2, and the preparation method comprises:

[0103] loading the pre-formed flavor-attached meltable solid carrier, i.e., the flavor-attached segment 34, into the hollow tube near the end of the seal;

[0104] loading a first solid filler 40 on the flavor-attached segment 34;

[0105] loading a smoking material on the first solid filler 40 to obtain a smoking segment 32;

[0106] loading a second solid filler 50 on the smoking segment 32;

[0107] reserving a cavity on the second solid filler 50 as a cooling segment 20;

[0108] loading a filter segment 10 on the cooling segment 20 to obtain the aerosol generating article 100.

[0109] The preparation method of the pre-formed flavor-attached meltable solid carrier can be: uniformly mixing a meltable solid carrier such as polyethylene glycol or carnauba wax with a flavor in a molten state, then pouring the mixture into a mold to solidify, and demolding to obtain the pre-formed flavor-attached meltable solid carrier.

[0110] The application also provides an aerosol generating system 300, please refer to Figure 4, comprising the aerosol generating article 100 and the heating device 200 adapted to the aerosol generating article 100, the heating device 200 comprises a containing groove 210 and a heating assembly 220 arranged on the periphery of the containing groove 210. The heating mode of the heating device can be peripheral heating, hot air heating, etc. When the heating assembly 220 is a peripheral heating structure, the heating assembly 220 can surround the smoking segment 32 and the flavor carrying segment 34 of the aerosol generating article 100, and correspond to the positions of the smoking segment 32 and the flavor carrying segment 34, so that the two segments can be heated independently.

[0111] The aerosol generating system provided by the application has rich aerosol aroma and good cooling effect. Industrial applicability

[0112] The aerosol substrate segment of the aerosol generating article provided by the application comprises a smoking segment and a flavor carrying segment, the flavor carrying segment comprises a meltable solid carrier and a flavor, and the meltable solid carrier has a melting state and a solid state. At room temperature, the meltable solid carrier is in a solid state, and after heating, the meltable solid carrier is in a melting state. At room temperature, the flavor is "locked" in the solid medium, so that the flavor carrying segment and the smoking segment are independent of each other. The phenomenon that the flavor pollutes the pipe wall during storage of the aerosol generating article can be avoided. In addition, due to the isolation of the flavor carrying segment and the smoking segment, the grammage of the smoking segment can be reduced to reduce the cost. The smoking segment can also be kept as dry as possible and not be damp. The aerosol generating article can also absorb more flavor without increasing the weight of the smoking segment, so that the aroma during the smoking process is richer.

Claims

1. An aerosol-generating article, characterized in that, The aerosol base material section includes a smoking section and a flavor carrying section arranged along the length direction of the aerosol generating article, and a cladding layer at least wrapped around the outer circumferential surface of the smoking section and the flavor carrying section; the flavor carrying section includes a meltable solid carrier and a flavor attached to the meltable solid carrier.

2. An aerosol-generating article according to claim 1, wherein, Further comprising a first filter element arranged between the smoking section and the flavor carrying section, and the first filter element has a first airflow passage through the length direction thereof.

3. An aerosol-generating article according to claim 1 or 2, wherein, The tobacco core material of the smoking section is in a granular, flaky or filamentous shape.

4. An aerosol-generating article according to any one of claims 1 to 3, wherein, Further comprising a gas-permeable sealing layer sealing the distal lip end of the cladding layer.

5. The aerosol generating article according to any one of claims 1-4, wherein the meltable solid carrier is in a solid state at room temperature and in a molten state after being heated.

6. An aerosol-generating article according to any one of claims 1 to 5, wherein, The meltable solid carrier includes polyethylene glycol and / or carnauba wax. The polyethylene glycol is at least one selected from polyethylene glycol 200, polyethylene glycol 300, polyethylene glycol 400, polyethylene glycol 600, polyethylene glycol 800, polyethylene glycol 1000, polyethylene glycol 1500, polyethylene glycol 2000, polyethylene glycol 3000, polyethylene glycol 4000, polyethylene glycol 6000, polyethylene glycol 8000, polyethylene glycol 10000, and polyethylene glycol 20000.

7. An aerosol-generating article according to any one of claims 1 to 6, wherein, The length of the flavor carrying section is 5-13 mm.

8. An aerosol-generating article according to any one of claims 1 to 7, wherein, The length ratio of the flavor carrying section to the smoking section is 0.4-0.

8.

9. An aerosol-generating article according to any one of claims 1 to 8, wherein, The total length of the flavor carrying section and the smoking section is not greater than 25 mm.

10. An aerosol-generating article according to any one of claims 1 to 9, wherein, Further comprising a filter section, and the cladding layer also wraps around the outer circumferential surface of the filter section, and a cooling section is defined by at least part of the cavity formed by the filter section, the aerosol base material section and the cladding layer.

11. An aerosol-generating article according to claim 10, wherein, Further comprising a second filter element wrapped by the cladding layer and arranged between the cooling section and the aerosol base material section, and the second filter element has a second airflow passage through the length direction thereof.

12. An aerosol-generating article according to claim 11, wherein, The flavor carrying section is arranged on the side of the smoking section close to the second filter element.

13. An aerosol-generating article according to claim 11, wherein, The smoking section is arranged on the side of the flavor carrying section close to the second filter element.

14. An aerosol-generating article according to any one of claims 11 to 13, wherein, The length of the first filter element and the second filter element is independently 3.0-7.0 mm.

15. A method of making an aerosol-generating article according to any one of claims 1 to 14, characterised in that, Comprising: providing an empty tube with one end sealed; loading a smoking section and a flavor carrying section into the open end of the empty tube to obtain the aerosol generating article.

16. A method of manufacturing an aerosol-generating article according to claim 15, wherein, The step of loading a smoking section and a flavor carrying section into the open end of the empty tube to obtain the aerosol generating article comprises: loading one of the smoking section and the flavor carrying section, the first filter element, the other of the smoking section and the flavor carrying section, and the second filter element into the open end of the empty tube in sequence; loading a filter section and spacing it from the second filter element; wherein the loading of the flavor carrying section into the empty tube comprises injecting a meltable solid carrier with a flavor attached thereto in a molten state into the empty tube, or loading a shaped meltable solid carrier with a flavor attached thereto.

17. An aerosol-generating system comprising: An aerosol generating article according to any one of claims 1 to 14 and a heating device adapted to the aerosol generating article.

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