Aerosol generating product

Abstract

The embodiment of the utility model provides an aerosol generating product. The aerosol generating product comprises an aerosol generating matrix section, a functional section and an outer wrapping part, the cross section of the aerosol generating substrate section has a first length dimension along a first direction and a second length dimension along a second direction, the first direction is perpendicular to the second direction, and the first length dimension is greater than the second length dimension; the functional section is arranged at one end of the aerosol generating matrix section along a third direction, and the third direction is perpendicular to the cross section; the outer wrapping piece wraps the outer peripheral sides of the aerosol generation matrix section and the functional section; wherein the outer wrapping piece at least comprises a metal wrapping piece, and the metal wrapping piece at least wraps the peripheral side of the partial area of the aerosol generating matrix section. The aerosol generating product provided by the embodiment of the utility model can improve the smoking experience feeling.

Description

Technical Field

[0001] The present application relates to the field of smoking technology, and in particular to an aerosol generating product. Background Art

[0002] Aerosol-generating products generally generate aerosols by heating without burning. Specifically, an aerosol-generating matrix segment is provided in the aerosol-generating product. The aerosol-generating product is heated by a heating element in an aerosol-generating device so that the aerosol-generating matrix segment is heated just enough to emit a fragrance, but the aerosol-generating matrix segment does not burn.

[0003] In the related art, the outer peripheral side of the aerosol generating matrix segment is generally wrapped by an outer wrapping member. However, during the heating process of the aerosol generating matrix segment, the outer wrapping member is prone to produce burnt gases, affecting the user's smoking experience. Utility Model Content

[0004] In view of this, the embodiments of the present application hope to provide an aerosol generating product that can improve the smoking experience.

[0005] To achieve the above objectives, one embodiment of the present application provides an aerosol-generating article, comprising:

[0006] an aerosol-generating substrate segment, the aerosol-generating substrate segment having a cross-section having a first length dimension along a first direction and a second length dimension along a second direction, the first direction being perpendicular to the second direction, the first length dimension being greater than the second length dimension;

[0007] a functional segment, the functional segment being disposed at one end of the aerosol-generating substrate segment along a third direction, the third direction being perpendicular to a cross-section of the aerosol-generating substrate segment;

[0008] An outer wrapper, which wraps around the outer periphery of the aerosol-generating substrate segment and the functional segment; wherein the outer wrapper comprises at least a metal wrapper, which wraps around the outer periphery of at least a partial area of ​​the aerosol-generating substrate segment.

[0009] In one embodiment, the metal wrapper has an annular sidewall, the annular sidewall enclosing a hollow channel, and at least a portion of the structure of the aerosol generating substrate segment is located within the hollow channel.

[0010] In one embodiment, the metal wrapping is wrapped around the circumference of at least a portion of the aerosol-generating substrate segment by winding.

[0011] In one embodiment, the side of the metal wrapping piece facing away from the functional segment has a folded edge bent toward the side where the hollow channel is located. The folded edge is located on the side of the aerosol generating matrix segment facing away from the functional segment and abuts against the aerosol generating matrix segment.

[0012] In one embodiment, the area of ​​the cross section of the folded edge perpendicular to the third direction is 5% to 75% of the area of ​​the cross section of the metal wrapping member perpendicular to the third direction.

[0013] In one embodiment, the material of the metal wrapping member includes at least one of aluminum and iron; and / or,

[0014] The metal wrapping part is an alloy part.

[0015] In one embodiment, the wall thickness of the metal wrapping is 0.05 mm to 1 mm.

[0016] In one embodiment, a ratio of the first length dimension to the second length dimension ranges from 1.05 to 10.

[0017] In one embodiment, the cross-section of the aerosol-generating substrate segment is racetrack-shaped or elliptical.

[0018] In one embodiment, the functional section at least includes a cooling section for cooling the aerosol.

[0019] In one embodiment, the functional section further includes a filtering section, and the filtering section is arranged on a side of the cooling section away from the aerosol generating substrate section along the third direction.

[0020] In one embodiment, the functional section further includes a support section, and the support section is arranged between the aerosol generating matrix section and the cooling section.

[0021] In one embodiment, the support section has an air flow channel and an air hole, the air flow channel runs through two opposite ends of the support section along the third direction, and the air flow channel is connected to the outside through the air hole; or,

[0022] The supporting section has an air flow channel, and the air flow channel runs through two opposite ends of the supporting section along the third direction. The cooling section has an air hole connected to the air flow channel, and the air flow channel is connected to the outside through the air hole.

[0023] In one embodiment, the functional section further includes a cooling section, and the cooling section is arranged between the supporting section and the filtering section.

[0024] In one embodiment, the functional segment is spaced apart from the aerosol generating substrate segment.

[0025] In one embodiment, the outer wrapping member includes wrapping paper, and the wrapping paper wraps around at least a portion of the functional section.

[0026] In one embodiment, the wrapping paper contacts the end surface of the metal wrapping member at one end thereof that is close to each other; or

[0027] One of the wrapping paper and the metal wrapping member wraps around at least a portion of the outer circumference of the other one.

[0028] An embodiment of the present application provides an aerosol-generating product, which is provided with an outer wrapping member on the peripheral side of an aerosol-generating matrix segment and a functional segment, wherein the outer wrapping member includes at least a metal wrapping member, and the metal wrapping member wraps the peripheral side of at least a partial area of ​​the aerosol-generating matrix segment. Compared with the paper wrapping member in the related art, during the heating process of the aerosol-generating matrix segment, the metal wrapping member will not be burnt due to heat, thereby effectively reducing the impurities in the aerosol, thereby improving the user's puffing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a first aerosol generating article according to an embodiment of the present application;

[0030] Figure 2 for Figure 1 AA cross-sectional view;

[0031] Figure 3 for Figure 1 A schematic structural diagram of the metal package shown;

[0032] Figure 4 for Figure 3 A cross-sectional view of the metal wrap is shown.

[0033] Figure 5 This is a schematic structural diagram of a second aerosol generating article according to an embodiment of the present application;

[0034] Figure 6 This is a schematic structural diagram of a third aerosol generating article according to an embodiment of the present application;

[0035] Figure 7 This is a schematic structural diagram of the fourth aerosol generating product according to an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 10. Aerosol generating matrix segment; 10a. Airway; 20. Functional segment; 20a. Cavity; 21. Filter segment; 22. Support segment; 22a. Airflow channel; 22b. Air hole; 23. Cooling segment; 30. Outer wrapping; 31. Metal wrapping; 31a. Hollow channel; 311. Annular side wall; 312. Folded edge; 32. Wrapping paper. DETAILED DESCRIPTION

[0038] In the description of the embodiments of the present application, it should be noted that the “first direction” and “second direction” are based on the attached Figure 2 The orientation or position relationship shown in the figure is based on the Figure 1 These directional terms are only used to facilitate the description of the embodiments of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application.

[0039] The present application provides an aerosol generating product. Figure 1 、 Figure 5 and Figure 6 The aerosol-generating article comprises an aerosol-generating substrate segment 10 , a functional segment 20 and an outer wrapper 30 .

[0040] The aerosol generating article is used in conjunction with an electronic atomization device having a heating element. Specifically, the heating element heats and atomizes the aerosol generating matrix segment 10 to generate an aerosol for inhalation by the user or for use in medicine, beauty, etc.

[0041] There are various heating methods for the heating element. Exemplary heating methods include central heating and peripheral heating. Central heating involves inserting a heating element into the interior of the aerosol-generating substrate segment 10 to heat the aerosol-generating substrate segment 10. Peripheral heating involves placing a heating element around the periphery of the aerosol-generating substrate segment 10 to heat the aerosol-generating substrate segment 10. These heating methods may include resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, and the like, and are not specifically limited herein.

[0042] The specific structure of the aerosol-generating matrix segment 10 is not limited herein. For example, the aerosol-generating matrix segment 10 can be made of the atomizing medium itself, such as a smoke-flavoring flavoring medium. In other embodiments, the aerosol-generating matrix segment 10 can also include a substrate and an atomizing medium disposed on the substrate. The substrate can be, for example, high-temperature-resistant carbon fiber. In this manner, the substrate can improve the strength of the aerosol-generating matrix segment 10 while also allowing it to withstand a certain degree of high temperature without generating odor.

[0043] The specific components of the aerosol-generating matrix segment 10 are not limited herein. For example, in one embodiment, the aerosol-generating matrix segment 10 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, and the like.

[0044] In one embodiment, the plant component is one or more combinations of powders formed from crushed tobacco leaves, tobacco leaf fragments, tobacco stems, tobacco dust, and flavorful plants. The plant component is the core source of the flavor of the product. Endogenous substances in the plant component, such as nicotine, enter the human bloodstream through aerosolization, promoting dopamine production in the pituitary gland, thereby achieving a sense of physiological satisfaction.

[0045] In one embodiment, the auxiliary agent may be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. Inorganic fillers can provide skeletal support for the plant component and, while also possessing micropores, can increase the porosity of the wall material after the plant component is formed, thereby improving the aerosol release rate.

[0046] Lubricants include one or more of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase particle flowability, reduce friction between particles, and achieve a more uniform particle density. They can also reduce mold pressure and reduce mold wear.

[0047] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to a certain extent, slow the loss of flavoring substances during storage, increase their stability, and improve the sensory quality of the product. Emulsifiers (also known as surfactants) can reduce the interfacial tension between the water-soluble and water-insoluble components in a mixed system and form a relatively strong film on the surface of the droplets. Alternatively, due to the charge imparted by the emulsifier, a double layer is formed on the surface of the droplets, preventing the droplets from aggregating and maintaining a uniform emulsion. Emulsifying and homogenizing two immiscible components can improve the consistency of product quality.

[0048] The function of the smoke-generating agent component is to generate a large amount of vapor when heated, thereby increasing the amount of smoke produced by the smoking article. In one embodiment, the smoke-generating agent may include, for example, a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butylene glycol, and glycerol); an ester of a polyhydric alcohol (such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate); a monocarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid), or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triactin, meso-erythritol, a mixture of diacetyl glycerides, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, tributyrin, and lauryl acetate).

[0049] In one embodiment, the adhesive component is a natural plant-extracted, non-ionically modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. The adhesive wetting and intimately contacting the product component materials creates intermolecular attraction, thereby bonding the powders and liquids of the component materials. The use of a natural plant-extracted, non-ionic adhesive can prevent the release of harmful substances such as methanol, formaldehyde, and acrolein caused by colloid modification, thereby improving the safety of the product.

[0050] For example, the aerosol-generating matrix segment 10 may be a particle assembly, which is a reconstituted tobacco medium, such as a reconstituted tobacco medium containing a smoking agent, tobacco, and other ingredients. The particle assembly aerosol-generating matrix segment 10 remains a single piece during heating and after inhalation, and is less likely to disintegrate or fall apart. This solves the problems of prior art aerosol-generating matrix segments in the form of flakes, filaments, or loose particles, such as loose flakes, loss of filamentary and granular components, and difficulty in cleaning.

[0051] See also Figure 2 The cross-section of the aerosol-generating substrate segment 10 has a first length dimension H1 along a first direction and a second length dimension H2 along a second direction, the first direction is perpendicular to the second direction, and the first length dimension H1 is greater than the second length dimension H2.

[0052] That is to say, the shape of the cross section of the aerosol generating matrix segment 10 has different length dimensions in two perpendicular directions. For example, the shape of the cross section of the aerosol generating matrix segment 10 can be a runway shape, an ellipse, etc., rather than a square, a circle, etc. having the same length dimensions in two perpendicular directions.

[0053] The shape of the cross section of the aerosol generating matrix segment 10 is actually roughly consistent with the shape of the cross section of the aerosol generating product. Therefore, when the first length dimension H1 of the cross section of the aerosol generating matrix segment 10 can be greater than the second length dimension H2, the cross section of the aerosol generating product also has different length dimensions in the first direction and the second direction, respectively. This shape of the cross section is more suitable for the user's lips, and the smoking experience is better.

[0054] The ratio of the first length dimension H1 to the second length dimension H2 of the aerosol-generating substrate segment 10 can be designed as needed. However, when the ratio of the first length dimension H1 to the second length dimension H2 is less than 1.05, a gap may easily form between the aerosol-generating article and the user's lips, resulting in a reduced user's puffing experience. When the ratio of the first length dimension H1 to the second length dimension H2 of the aerosol-generating substrate segment 10 is greater than 10, the yield rate of the aerosol-generating article during production is low, which may lead to increased costs. Therefore, preferably, the ratio of the first length dimension H1 to the second length dimension H2 of the aerosol-generating substrate segment 10 may be 1.05 to 10 (inclusive). For example, the ratio of the first length dimension H1 to the second length dimension H2 may be 1.05, 2, 5, 6, 8, 10, etc. More preferably, the ratio of the first length dimension H1 to the second length dimension H2 of the aerosol-generating substrate segment 10 may be 2 to 6 (inclusive).

[0055] Furthermore, generally speaking, because the metal wrap 31 wraps around at least a portion of the outer periphery of the aerosol-generating substrate segment 10, the cross-sectional shape of the metal wrap 31 is substantially consistent with the shape of the aerosol-generating substrate segment 10. Therefore, while the first length dimension H1 of the cross-sectional area of ​​the aerosol-generating substrate segment 10 can be greater than the second length dimension H2, the cross-sectional area of ​​the metal wrap 31 also has different length dimensions in the first and second directions, respectively. This increases the thermal contact area of ​​the aerosol-generating substrate segment 10 during heating, thereby improving the heating efficiency of the aerosol-generating substrate segment 10, shortening the waiting time required during the heating process, and thereby enhancing the user's puffing experience.

[0056] See also Figure 2 The aerosol generating matrix segment 10 may be provided with an air channel 10a, which may pass through opposite ends of the aerosol generating matrix segment 10, or may only pass through one end of the aerosol generating matrix segment 10, while the other end is a closed end.

[0057] Compared with the air passage 10a running through one end of the aerosol-generating matrix segment 10, the air passage 10a running through the opposite ends of the aerosol-generating matrix segment 10 is more conducive to reducing the user's inhalation resistance.

[0058] The number of the air passages 10a may be one or more.

[0059] The airway 10a may be a straight airway 10a. The straight airway 10a is an airway 10a extending in a straight line, or in other words, the extending direction of the straight airway 10a is a straight line.

[0060] The airway 10a may also be a spiral airway 10a. This refers to an airway 10a having a non-zero curvature curve in at least a portion of its extension direction. For example, along its extension direction, the spiral airway 10a may have both non-zero curvature curve segments and zero curvature straight segments, or it may have only non-zero curvature curve segments and no zero curvature straight segments. In other words, the spiral airway 10a only needs to not extend in a straight line from its starting point to its end point along its extension direction.

[0061] When there are multiple air passages 10 a , some of the air passages 10 a may be straight air passages 10 a , and other air passages 10 a may be spiral air passages 10 a .

[0062] The shape of the cross section of the airway 10a perpendicular to the third direction is not limited. For example, the cross section may be circular, polygonal (including but not limited to triangle, square, prism, etc.), elliptical, racetrack-shaped or irregular-shaped.

[0063] The air channel 10a can gather the aerosol released by the heated aerosol-generating matrix segment 10 and make the aerosol flow along the air channel 10a, thereby increasing the flow speed of the aerosol and further improving the extraction efficiency of the aerosol.

[0064] In other embodiments, the aerosol-generating substrate segment 10 may not be provided with the air channel 10a.

[0065] Please continue reading Figure 1 、 Figures 5 to 7 The functional segment 20 is arranged at one end of the aerosol generating substrate segment 10 along the third direction, and the functional segment 20 at least includes a filtering segment 21 for filtering aerosol.

[0066] During the user's inhalation, the aerosol released by the heated aerosol-generating substrate segment 10 passes through the functional segment 20 to flow into the user's oral cavity.

[0067] Figure 1 、 Figure 5 and Figure 6 The functional segment 20 shown is spaced apart from the aerosol generating matrix segment 10 to form a cavity 20a at the interval. The cavity 20a can cool the airflow carrying the aerosol to a certain extent, thereby improving the "burning mouth" phenomenon when the user inhales the aerosol.

[0068] In other embodiments, see Figure 7 , the functional segment 20 may also be in contact with the aerosol-generating substrate segment 10 .

[0069] The functional section 20 includes at least a cooling section for cooling the aerosol. Specifically, the cooling section is used to cool the aerosol before it enters the user's oral cavity, thereby lowering the aerosol's inlet temperature and reducing the "burning mouth" phenomenon experienced by the user when inhaling the aerosol.

[0070] The materials of the cooling section include but are not limited to one or more combinations of PE, PLA, PBAT, PP, acetate fiber, and acrylic fiber materials.

[0071] Please refer to the figure Figure 1 、 Figures 5 to 7 The functional section 20 may further include a filter section 21, which is disposed on a side of the cooling section away from the aerosol generating matrix section along the third direction. The filter section 21 is configured to contact the user's oral cavity during inhalation to filter the aerosol.

[0072] The material of the filter section 21 includes but is not limited to one or more combinations of PE (Polyethylene), PLA (Polylactic Acid), PBAT (Butylene adipate-co-terephthalate), PP (Polypropylene), acetate fiber, and acrylic fiber materials.

[0073] For example, see Figure 1 、 Figures 5 to 7 The functional section 20 may further include a support section 22 disposed between the aerosol generating substrate section 10 and the cooling section. The support section 22 is mainly used to provide support for the substrate section 10 to improve the structural strength of the substrate section 10, especially the structural strength at high temperatures.

[0074] For example, the supporting segment 22 may have good structural strength at a high temperature of at least 200°C.

[0075] In some scenarios, the support section 22 can also provide a certain amount of suction resistance.

[0076] The material of the support section 22 includes but is not limited to acetate fiber, PET (polyethylene terephthalate), plant fiber, non-plant fiber, etc.

[0077] See also Figure 7The support segment 22 may have an airflow channel 22a extending through opposite ends of the support segment 22 along the third direction for passage of aerosol. Specifically, during inhalation by a user, aerosol released by the heated aerosol-generating substrate segment 10 flows into the airflow channel 22a under the action of negative pressure and then flows toward the filter segment 21.

[0078] The number of the air flow channels 22a is not limited and can be one or more.

[0079] Please continue reading Figure 7 The support segment 22 may further include an air hole 22b communicating with the airflow channel 22a. The air hole 22b is used to allow external airflow to pass through. During the user's inhalation process, external airflow can enter the airflow channel 22a through the air hole 22b under the action of negative pressure. During the airflow process, the aerosol released by the heated aerosol-generating matrix segment 10 can also flow into the airflow channel 22a under the action of negative pressure and mix with the airflow in the airflow channel 22a. Therefore, the airflow can carry the aerosol with it and flow out of the airflow channel 22a and flow into the user's oral cavity, thereby achieving the extraction of the aerosol.

[0080] In another embodiment, the cooling section may have an air hole connected to the air flow channel 22a, and the air flow channel 22a may communicate with the outside world through the air hole. In other words, the support section 22 may only have the air flow channel 22a but no air hole 22b. By providing the cooling section with an air hole connected to the air flow channel 22a, the air flow channel 22a may also communicate with the outside world.

[0081] See also Figure 1 、 Figures 5 to 7 The outer wrapper 30 wraps around the outer periphery of the aerosol-generating substrate segment 10 and the functional segment 20 . The outer wrapper 30 comprises at least a metal wrapper 31 , which wraps around at least a portion of the outer periphery of the aerosol-generating substrate segment 10 .

[0082] The aerosol-generating substrate segment 10 and the functional segment 20 may be formed as a whole by the outer wrapper 30 .

[0083] The wall thickness of the metal wrap 31 can be designed as needed. However, when the wall thickness of the metal wrap 31 is less than 0.05 mm, the metal wrap 31 is difficult to manufacture and has weak support performance, making it difficult to support the subsequent insertion of the aerosol-generating matrix segment 10. When the thickness of the metal wrap 31 is greater than 1 mm, the manufacturing cost of the metal wrap 31 increases, and the heat transfer efficiency decreases, thereby reducing the first puff volume. Therefore, it is preferred that the wall thickness of the metal wrap 31 be between 0.05 mm and 1 mm (inclusive). For example, the thickness of the metal wrap 31 can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 1 mm, etc.

[0084] The metal wrapping member 31 is made of metal, and the metal material is not limited. For example, the metal wrapping member 31 may be a thermally conductive alloy such as an aluminum alloy, an iron alloy, or an aluminum-iron alloy. Thermally conductive alloys not only have excellent thermal conductivity but are also lightweight, reducing the overall weight of the aerosol-generating article and improving user convenience. In another embodiment, the metal wrapping member may also be made of aluminum, iron, or other materials.

[0085] For aerosol-generating products that use a circumferential heating method, since the heating element is arranged on the periphery of the aerosol-generating matrix segment 10, the material of the metal wrapping member 31 can be selected from metals with good thermal conductivity, so that during the heating process, the heat generated by the heating element can be quickly transferred to the aerosol-generating matrix segment 10 through the metal wrapping member 31. This can increase the speed of heat transfer and thus increase the amount of smoke in the first puff.

[0086] See also Figure 1 、 Figures 5 to 7 The outer wrapping member 30 may further include a wrapping paper 32, which wraps around at least a portion of the outer periphery of the functional segment 20. The wrapping paper 32 may be made of any material, including but not limited to one or more combinations of fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE, PBAT, and the like.

[0087] The wrapping paper 32 may have only one layer or multiple layers.

[0088] The arrangement of the metal wrapping member 31 and the wrapping paper 32 is not limited. For example, see Figure 1 and Figure 7 The end faces of the wrapping paper 32 and the metal wrapping part 31 that are close to each other can contact each other, that is, the end face of the wrapping paper 32 close to the metal wrapping part 31 contacts the end face of the metal wrapping part 31 close to the wrapping paper 32. The wrapping paper 32 does not wrap the metal wrapping part 31, and the metal wrapping part 31 does not wrap the wrapping paper 32.

[0089] In another embodiment, the wrapping paper 32 may be wrapped around the outer periphery of at least a portion of the metal wrapping member 31. For example, see Figure 5 The wrapping paper 32 may wrap around a portion of the outer periphery of the metal wrapping member 31 , or the wrapping paper 32 may completely wrap around the outer periphery of the metal wrapping member 31 .

[0090] In another embodiment, the metal wrapping member 31 may also be wrapped around the outer periphery of at least a portion of the wrapping paper 32. For example, see Figure 6The metal wrapping member 31 may wrap around the outer periphery of a partial area of ​​the wrapping paper 32 , or the metal wrapping member 31 may completely wrap around the outer periphery of the metal wrapping member 31 .

[0091] It should be noted that the outer wrapping member 30 can only be provided with a metal wrapping member 31 without a wrapping paper 32. When the outer wrapping member 30 is only provided with a metal wrapping member 31, the metal wrapping member 31 is wrapped around the outer peripheral side of the aerosol generating matrix segment 10 and the functional segment 20.

[0092] In the related art, the material of the wrapping member wrapped around the outer peripheral side of the aerosol generating matrix segment is generally fiber paper. The paper wrapping member wraps the aerosol generating matrix segment by being wound around the outer peripheral side of the aerosol generating matrix segment 10. However, during the heating process of the aerosol generating matrix segment, the paper wrapping member is easily heated to produce fiber burnt gas, thereby affecting the user's smoking experience.

[0093] The aerosol generating product of the embodiment of the present application is provided with an outer wrapping 30 on the peripheral side of the aerosol generating matrix segment 10 and the functional segment 20, wherein the outer wrapping 30 includes at least a metal wrapping 31, and the metal wrapping 31 wraps the peripheral side of at least a part of the aerosol generating matrix segment 10. Compared with the paper wrapping in the related art, during the heating process of the aerosol generating matrix segment 10, the metal wrapping 31 will not be burnt due to heat, thereby effectively reducing the impurities in the aerosol, thereby improving the user's smoking experience.

[0094] In one embodiment, please refer to Figure 3 and Figure 4 The metal wrapper 31 may have an annular sidewall 311, which encloses a hollow channel 31a, and at least part of the structure of the aerosol generating substrate segment 10 is located in the hollow channel 31a.

[0095] The hollow passage 31 a is a passage penetrating through opposite ends of the metal sheath 31 .

[0096] The hollow channel 31a of the metal wrapping 31 is at least used to accommodate the aerosol generating matrix segment 10, that is, only part of the structure of the aerosol generating matrix segment 10 can be located in the hollow channel 31a, or the entire aerosol generating matrix segment 10 can be located in the hollow channel 31a. In addition, part of the structure of the functional segment 20 or the entire functional segment 20 can also be located in the hollow channel 31a.

[0097] The annular side wall 311 encloses a hollow channel 31a, that is, the hollow channel 31a is formed by the annular side wall 311, rather than being formed by winding the aerosol generating matrix segment 10 on the outer peripheral side. During the process of assembling the aerosol generating product, the aerosol generating matrix segment 10 is inserted into the hollow channel 31a from one end of the hollow channel 31a.

[0098] In another embodiment, the metal wrapping member 31 can also be formed by winding the hollow channel 31a on the outer peripheral side of the aerosol generating matrix segment 10, that is, during the process of assembling the aerosol generating product, the metal wrapping member 31 is wrapped on the outer peripheral side of the aerosol generating matrix segment 10 by winding.

[0099] See also Figure 3 and Figure 4 The side of the metal wrapping 31 away from the functional section 20 can be provided with a folded edge 312 bent toward the side where the hollow channel 31a is located. The folded edge 312 is located on the side of the aerosol generating matrix segment 10 away from the functional section 20 and abuts against the aerosol generating matrix segment 10.

[0100] The folded edge 312 is used to stop the aerosol-generating substrate segment 10. Specifically, since the aerosol-generating substrate segment 10 may shrink during heating, and the shrinkage is particularly severe for the aerosol-generating substrate segment 10 having the air channel 10a, the folded edge 312 abutting against the aerosol-generating substrate segment 10 can effectively prevent the aerosol-generating substrate segment 10 from falling out of the hollow channel 31a.

[0101] The cross-sectional area of ​​the folded edge 312 perpendicular to the third direction can be designed as needed. However, when the cross-sectional area of ​​the folded edge 312 perpendicular to the third direction is less than 5% of the cross-sectional area of ​​the metal wrap 31 perpendicular to the third direction, the folded edge 312 has a poor stopping effect, and the aerosol-generating matrix segment 10 is easily dislodged from the hollow channel 31a after heating and shrinking, affecting user usability. When the cross-sectional area of ​​the folded edge 312 perpendicular to the third direction is greater than 75% of the cross-sectional area of ​​the metal wrap 31 perpendicular to the third direction, the larger area will increase the draw resistance of the aerosol-generating matrix segment 10, reducing the user's puffing experience. In addition, for aerosol-generating products that intake air from the bottom of the aerosol-generating matrix segment 10 along the third direction, the larger area is not conducive to the uniform diffusion of airflow into the aerosol-generating matrix segment 10, thereby hindering the extraction of aerosol, and further resulting in a decrease in the utilization rate of the aerosol-generating matrix segment 10. Therefore, preferably, the area of ​​the cross section of the folded edge 312 perpendicular to the third direction can be 5% to 75% (including the endpoint values) of the area of ​​the cross section of the metal wrapping 31 perpendicular to the third direction. For example, the area of ​​the cross section of the folded edge 312 perpendicular to the third direction can be 5%, 10%, 30%, 40%, 50%, 60%, 75%, etc. of the area of ​​the cross section of the metal wrapping 31 perpendicular to the third direction.

[0102] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in this application and features of different embodiments or examples, unless they are mutually inconsistent.

[0103] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. An aerosol-generating product, characterized in that include: an aerosol-generating substrate segment, the aerosol-generating substrate segment having a cross-section having a first length dimension along a first direction and a second length dimension along a second direction, the first direction being perpendicular to the second direction, the first length dimension being greater than the second length dimension; a functional segment, the functional segment being disposed at one end of the aerosol-generating substrate segment along a third direction, the third direction being perpendicular to a cross-section of the aerosol-generating substrate segment; An outer wrapper, which wraps around the outer periphery of the aerosol-generating substrate segment and the functional segment; wherein the outer wrapper comprises at least a metal wrapper, which wraps around the outer periphery of at least a partial area of ​​the aerosol-generating substrate segment.

2. The aerosol-generating article according to claim 1, wherein The metal wrapper has an annular sidewall, the annular sidewall enclosing a hollow channel, and at least a portion of the structure of the aerosol generating substrate segment is located within the hollow channel; or The metal wrapping is wrapped around the circumference of at least a portion of the aerosol-generating substrate segment by winding.

3. The aerosol-generating article according to claim 2, wherein The side of the metal wrapping part facing away from the functional section has a folded edge bent toward the side where the hollow channel is located. The folded edge is located on the side of the aerosol generating matrix section facing away from the functional section and abuts against the aerosol generating matrix section.

4. The aerosol-generating article according to claim 3, wherein The area of ​​the cross section of the folded edge perpendicular to the third direction is 5% to 75% of the area of ​​the cross section of the metal wrapping member perpendicular to the third direction.

5. The aerosol-generating article according to any one of claims 1 to 4, wherein: The material of the metal wrapping member includes at least one of aluminum and iron; and / or, The metal wrapping part is an alloy part.

6. The aerosol-generating article according to any one of claims 1 to 4, wherein: The wall thickness of the metal wrapping part is 0.05 mm to 1 mm.

7. An aerosol-generating article according to any one of claims 1 to 4, characterized in that The ratio of the first length dimension to the second length dimension ranges from 1.05 to 10.

8. The aerosol-generating article according to any one of claims 1 to 4, wherein: The cross-section of the aerosol-generating substrate segment is in the shape of a racetrack or an ellipse.

9. The aerosol-generating article according to any one of claims 1 to 4, wherein: The functional section at least includes a cooling section for cooling the aerosol.

10. The aerosol-generating article according to claim 9, wherein The functional section further includes a filtering section, which is arranged on a side of the cooling section away from the aerosol generating substrate section along the third direction.

11. The aerosol-generating article according to claim 9, wherein The functional section further includes a support section, which is arranged between the aerosol generating substrate section and the cooling section.

12. The aerosol-generating article according to claim 11, wherein The support section has an air flow channel and an air hole, the air flow channel runs through two opposite ends of the support section along the third direction, and the air flow channel is connected to the outside through the air hole; or, The supporting section has an air flow channel, and the air flow channel runs through two opposite ends of the supporting section along the third direction. The cooling section has an air hole connected to the air flow channel, and the air flow channel is connected to the outside through the air hole.

13. An aerosol-generating article according to any one of claims 1 to 4, wherein: The functional segment is spaced apart from the aerosol generating substrate segment.

14. An aerosol-generating article according to any one of claims 1 to 4, wherein: The outer wrapping member includes wrapping paper, which wraps around at least a portion of the functional section.

15. An aerosol-generating article according to claim 14, wherein The wrapping paper contacts the end surface of the metal wrapping member at one end close to each other; or One of the wrapping paper and the metal wrapping member wraps around at least a portion of the outer circumference of the other one.

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