WO2024045751A1 - 一种气溶胶生成制品及制备方法及气溶胶生成系统 - Google Patents

一种气溶胶生成制品及制备方法及气溶胶生成系统 Download PDF

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Publication number
WO2024045751A1
WO2024045751A1 PCT/CN2023/098906 CN2023098906W WO2024045751A1 WO 2024045751 A1 WO2024045751 A1 WO 2024045751A1 CN 2023098906 W CN2023098906 W CN 2023098906W WO 2024045751 A1 WO2024045751 A1 WO 2024045751A1
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WIPO (PCT)
Prior art keywords
aerosol
cavity
section
lumen
generating
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PCT/CN2023/098906
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English (en)
French (fr)
Inventor
杨菁
汪旭
徐刚强
刘成
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上海烟草集团有限责任公司
上海新型烟草制品研究院有限公司
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Publication of WO2024045751A1 publication Critical patent/WO2024045751A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts

Definitions

  • the invention relates to the field of tobacco products, and in particular to an aerosol-generating product, a preparation method and an aerosol-generating system.
  • atomized tobacco products With the improvement of people's health awareness, low-harm cigarettes have become the future development trend of tobacco.
  • the principle of atomized tobacco products is that the aerosol-generating matrix (mainly tobacco raw materials) absorbs the external heat provided by the heater, raising its own temperature and releasing aerosol. Since only the aerosol-generating matrix is heated instead of burned, harmful components produced by high-temperature combustion of tobacco are reduced, and the release of side-stream smoke and ambient smoke is also significantly reduced.
  • atomized tobacco products use tobacco materials as the main raw material for the aerosol-generating matrix, and their aroma is closer to traditional cigarettes, so they are widely favored by consumers.
  • the main problems of atomized tobacco products include poor smoking effect, insufficient fullness, and high aerosol inlet temperature. Problems such as poor smoking effect and bland smoke taste are mainly related to factors such as the structural design of atomized tobacco products, aerosol-generating matrix formula and flavoring.
  • the high aerosol inlet temperature is mainly due to the relatively short aerosol passage of atomized tobacco products, low aerosol filtration effect, and high moisture content in the aerosol, which makes consumers perceive a higher temperature.
  • the Chinese patent document with publication number CN104010531B discloses an aerosol-generating product used together with an aerosol-generating device, which relates to an aerosol-generating product and a method of using the aerosol-generating product.
  • Such aerosol-generating articles include an aerosol-forming substrate for generating an inhalable aerosol when heated by an internal heating element of the aerosol-generating device.
  • the aerosol-generating article also includes a cooling element using aggregated biodegradable polymer material, such as aggregated polylactic acid sheets.
  • manufacturing such multi-component aerosol-generating products usually requires quite complex manufacturing machinery and process technology.
  • Hollow tubular structure combined with ventilation technology is one of the effective means to reduce the aerosol temperature of atomized tobacco products.
  • the ventilation zone is set at a certain distance from the mouth section of the aerosol-generating product and the upstream end, and the cooling section is effectively placed immediately upstream of the mouthpiece, which is helpful for the nucleation and growth of aerosol particles.
  • an aerosol device for generating inhalable aerosol when heated.
  • An aerosol-generating article includes a strip of aerosol-generating substrate and a hollow tubular section at a location between the strip and the mouthpiece section.
  • the hollow tubular section is longitudinally aligned with the rod and mouthpiece sections.
  • the hollow tubular section defines a cavity extending up to the upstream end of the mouthpiece section.
  • the aerosol-generating article also includes a ventilation zone along the hollow tubular section at a location less than about 18 millimeters from the upstream end of the hollow tubular section.
  • the wall thickness of the peripheral wall of the hollow tubular section is less than about 1.5 millimeters.
  • the strip of aerosol-generating substrate includes at least an aerosol-forming agent, the strip of aerosol-generating substrate having an aerosol-forming agent content of at least about 10% by dry weight.
  • this hollow tubular cooling method using ventilation has the effect of diluting smoke, affecting consumer experience. It also increases the cost of manufacturing equipment, increases process complexity, and reduces production efficiency.
  • the purpose of the present invention is to solve the problems of current methods of reducing the aerosol temperature of atomized tobacco products, which dilute smoke and affect consumers' experience, as well as complicated processes and increased production costs.
  • the invention provides an aerosol-generating product that can reduce the aerosol temperature without affecting the taste of smoke, improve consumer experience, and has a simple process and low cost.
  • an embodiment of the present invention discloses an aerosol-generating product, including:
  • Aerosol generating matrix used to generate aerosol
  • the first lumen section is connected to the downstream end of the aerosol generating base body, and the first lumen section is provided with a first cavity penetrating along the axial direction;
  • the second lumen section is provided at the downstream end of the first lumen section.
  • the second lumen section is provided with a second cavity that penetrates in the axial direction, and the first cavity is connected with the second cavity;
  • first cavity and the second cavity are radially isolated from the outside world; the volume of the second cavity is larger than the volume of the first cavity, and the wall thickness of the second cavity is smaller than the wall thickness of the first cavity.
  • the combination form of "small cavity structure + large cavity structure” is used, that is, the first cavity volume of the small-volume first lumen segment is combined with the large-volume second lumen segment.
  • the wall thickness of the second cavity is smaller than the wall thickness of the first cavity, which can cause the pressure of the aerosol generated after heating to decrease when it passes from the first cavity to the second cavity. This sudden change in the flow field is conducive to strengthening the inner wall surface of the second cavity.
  • Convection heat transfer thereby promotes the reduction of aerosol temperature; at the same time, the thinner the wall thickness, the smaller the thermal resistance of heat transfer, so when the flue gas flows through the second cavity, it can fully pass through the cavity wall and the external environment Heat exchange between them further improves the cooling effect.
  • the smoke temperature is related to both the smoking effect and fullness. Effectively reducing the smoke temperature can also promote the condensation and atomization of smoke components, improving the smoking effect and fullness.
  • a filter section is also included, which is connected to the downstream section of the second lumen section.
  • the aerosol generated after the aerosol generating base is heated can pass through the first lumen section, the second lumen section and the filter section in sequence. .
  • the volume of the second cavity and the volume of the first cavity satisfy the following conditions: 1.5 ⁇ V 2 /V 1 ⁇ 5
  • V 1 is the volume of the first cavity
  • V 2 is the volume of the second cavity
  • the wall thickness of the second cavity is less than or equal to 1.5 mm.
  • the length of the second lumen section and/or the length of the filtering section is less than or equal to the length of the first lumen section.
  • the lengths of the first lumen section, the second lumen section and the filter section also meet the following conditions: L 3 /(L 1 +L 2 ) ⁇ 0.5
  • L 1 is the length of the first lumen segment
  • L 2 is the length of the first lumen segment
  • L 3 is the length of the filtering segment.
  • the lengths of the first lumen section and the second lumen section also meet the following conditions: L 2 /L 1 ⁇ 1.5
  • L 1 is the length of the first lumen segment
  • L 2 is the length of the first lumen segment
  • the aerosol-generating matrix includes an aerosol-forming agent, and the aerosol-forming agent accounts for at least 10% of the aerosol-generating matrix in terms of dry weight.
  • the materials of the first lumen section, the second lumen section and the filter section include at least one of the following: acetate fiber tow, propylene fiber tow, polylactic acid fiber tow, and paper.
  • Another embodiment of the present application also discloses a method for preparing an aerosol-generating product, which is used to prepare the above-mentioned aerosol-generating product, including the following steps:
  • the first lumen section, the second lumen section and the filter section are each formed;
  • the first lumen section, the second lumen section and the filter section are compounded into a ternary composite filter rod using molding paper;
  • the forming of the first lumen segment and/or the second lumen segment includes the following steps:
  • the tow After the tow is opened and sprayed with triacetin, it is introduced into the filter rod forming smoke chamber through a high-pressure nozzle for shaping.
  • an aerosol generation system including:
  • An aerosol generating device includes a heating element, and the heating element is used to heat the aerosol generating substrate to generate aerosol.
  • Figure 1 shows a schematic structural diagram of an aerosol-generating product according to an embodiment of the present invention
  • 10-aerosol generating matrix 20-first lumen section, 21-first cavity, 30-second lumen section, 31-second cavity, 40-filtration section.
  • orientation or positional relationship indicated by the terms “inner”, “bottom”, etc. is based on the orientation or positional relationship shown in the drawings, or the customary placement of the product of the invention when used.
  • the orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. .
  • the terms “set”, “connected” and “connected” should be understood in a broad sense.
  • it can be a fixed connection or a fixed connection.
  • Detachable connection, or integral connection it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • the specific meanings of the above terms in this embodiment can be understood in specific situations.
  • This embodiment provides an aerosol-generating product.
  • FIG 1 It includes an aerosol-generating base 10, a first lumen section 20, a second lumen section 30, and a filter section 40.
  • the end of the aerosol-generating product away from the mouth is The upstream end, the end close to the mouth end is the downstream end.
  • the aerosol generating base 10, the first lumen section 20, the second lumen section 30 and the filter section 40 are arranged in sequence from the upstream end to the downstream end (that is, along the X in Figure 1 Set in sequence as shown in the direction).
  • the aerosol generating base 10 is used to generate aerosol for consumers to inhale.
  • the first lumen section 20 is connected to the downstream end of the aerosol generating base 10 , and the first lumen section 20 is provided with a first cavity 21 that penetrates along the axial direction.
  • the second lumen section 30 is connected to the downstream end of the first lumen section 20 , and the second lumen section 30 is provided with a second cavity 31 that penetrates along the axial direction.
  • the first cavity 21 and the second cavity 31 form a smoke passage.
  • the first cavity 21 and the second cavity 31 are radially isolated from the outside world, that is, the first cavity 21 and the second cavity 31 do not have ventilation features; and the walls of the second cavity 31
  • the thickness is smaller than the wall thickness of the first cavity 21
  • the volume of the second cavity 31 is larger than the volume of the first cavity 21 .
  • the aerosol-generating base 10, the first lumen section 20, the filter section 40 and the second lumen section 30 are arranged in sequence from the upstream end to the downstream end of the aerosol-generating article, that is, the aerosol-generating article After the base body 10 is heated to generate smoke, the smoke passes through the first lumen section 20 , the filter section 40 and the second lumen section 30 in sequence.
  • the heat exchange path between the aerosol in the first cavity 21 and/or the second cavity 31 and the external environment mainly includes convection heat transfer on the inner wall of the cavity, heat conduction in the wall, and heat transfer between the outer wall and the environment.
  • Three parts of convection heat transfer Using the above technical solution, the combination form of "small cavity structure + large cavity structure" is used, that is, the volume of the first cavity 21 of the small-volume first lumen section 20 is combined with the large-volume second lumen section 30 , at the same time, the wall thickness of the second cavity 31 is smaller than the wall thickness of the first cavity 21, which can cause the pressure of the aerosol generated after heating to decrease when it passes from the first cavity 21 to the second cavity 31.
  • the sudden change of the flow field is conducive to
  • the convection heat transfer on the inner wall surface of the second cavity 31 is enhanced to promote the reduction of the aerosol temperature; at the same time, the thinner the wall thickness, the smaller the thermal resistance of heat transfer, so when the smoke flows through the second cavity 31, it can Fully conduct heat exchange between the lumen wall and the external environment to further improve the cooling effect.
  • the smoke temperature is related to both the smoking effect and fullness. Effectively reducing the smoke temperature can also promote the condensation and atomization of smoke components, improving the smoking effect and fullness.
  • the combination of "small cavity structure + large cavity structure” can achieve effective cooling of the flue gas without drilling holes in the first lumen section 20 or the second lumen section 30, that is, the first The cavity 21 and the second cavity 31 are radially isolated from the outside world.
  • this embodiment can avoid the introduction of external air through the holes. This causes the problem of smoke dilution, that is, the technical solution of this embodiment can take into account both reducing the aerosol temperature and ensuring the taste of the smoke.
  • both the first lumen section 20 and the second lumen section 30 are hollow structures, which retain less aerosols flowing through them, ensuring that as much aerosols as possible can pass through and be delivered to consumers.
  • the inner diameter of the first cavity 21 can be set accordingly according to the diameter of the tobacco section to prevent the heating element from being inserted into the aerosol generating base 10 due to the inner diameter of the first cavity 21 being too large.
  • the occurrence of axial displacement may even cause the tobacco substances in the aerosol-generating matrix 10 to loosen, which is not conducive to heat transfer between the tobacco substances.
  • the cross-sectional shapes of the first cavity 21 and the second cavity 31 include but are not limited to circular, elliptical, and star shapes.
  • the cross-sectional shapes of the first cavity 21 and the second cavity 31 may be the same or different, and are not limited thereto.
  • the volume of the second cavity 31 and the volume of the first cavity 21 satisfy the following conditions: 1.5 ⁇ V 2 /V 1 ⁇ 5, where V 1 is the volume of the first cavity 21 and V 2 is the second cavity 21 .
  • the ratio range of the volume of the second cavity 31 to the volume of the first cavity 21 is mainly achieved by adjusting the inner diameter of the second cavity 31 and the axial length of the first lumen section 20 and/or the second lumen section 30 .
  • the inner diameter of the first cavity is 2.5mm ⁇ 4.5mm
  • the inner diameter of the second cavity is 3.5mm ⁇ 6mm.
  • the outer diameters of the first cavity and the second cavity are not limited.
  • the length of the first lumen section 20 and/or the second lumen section 30 is not less than 5 mm to facilitate processing and ensure length stability.
  • the wall thickness of the first cavity 21 is W 1 and the wall thickness of the second cavity 31 is W 2 , then W 1 >W 2 and W 2 ⁇ 1.5mm. Preferably, W 2 ⁇ 1.2mm.
  • the heat exchange path between the aerosol in the first cavity 21 and/or the second cavity 31 and the external environment mainly includes convection heat transfer on the inner wall of the cavity, heat conduction in the wall, and convection heat exchange between the outer wall and the environment.
  • the convection heat transfer coefficients of the inner and outer walls of the first cavity 21 and/or the second cavity 31 are not much different.
  • the thermal conductivity of thin-walled materials is low, so the cooling effect is mainly dominated by the wall thickness of the thin wall.
  • the thinner the wall thickness the smaller the thermal resistance to heat transfer, and the more sufficient the heat exchange between the flue gas in the cavity and the external environment. , the better the cooling effect. Therefore, reducing the wall thickness of the second cavity 31, that is, increasing the inner diameter of the second cavity 31, is beneficial to lowering the aerosol temperature.
  • the wall of the first lumen section 20 needs to have the function of supporting the aerosol-generating substrate 10. If the inner diameter of the first cavity 21 is too large, the aerosol-generating substrate 10 will easily undergo axial displacement when heated, and even cause the aerosol-generating substrate 10 to The loose tobacco material in the tobacco material is not conducive to heat transfer between the tobacco materials, so the inner diameter of the first cavity 21 should not be too large. However, if the inner diameter of the first cavity 21 is too small, the generated aerosol may be trapped too much on the wall of the first lumen section 20, affecting the taste of the smoke. Therefore, the relative ratio between the first cavity 21 and the second cavity 31 needs to meet a certain range in order to reduce the temperature of the smoke, ensure the taste of the smoke, and prevent the aerosol generating base 10 from being displaced.
  • the wall thickness of the second cavity 31 is the minimum distance measured between its outer wall and the inner cavity wall. In fact, the distance at a given position is measured in a direction substantially perpendicular to the outer and inner walls of the second cavity 31 . For cavity elements with a substantially circular cross-section, this distance is measured substantially in the radial direction of the second cavity 31 .
  • the lengths of the first lumen section 20 , the second lumen section 30 and the filtering section 40 also satisfy the following conditions: L 1 ⁇ L 2 , L 3 ⁇ L 2 , that is, the length of the second tube
  • the length of the lumen section 30 is greater than the lengths of the first lumen section 20 and the filter section 40 respectively. It is further satisfied that L 3 /(L 1 +L 2 ) ⁇ 0.5, that is, the sum of the lengths of the first lumen section 20 and the second lumen section 30 is greater than twice the length of the filter section 40 .
  • the length of the first lumen section 20 is L 1
  • the length of the second lumen section 30 is L 2
  • the length of the filter section 40 is L 3 .
  • Such an arrangement increases the length of the second tube cavity section 30, thereby increasing the heat exchange time of the flue gas in the second tube cavity, and achieving better cooling of the flue gas.
  • Sample 1 includes an aerosol generating matrix 10, a first lumen section 20, a second lumen section 30 and a filter section 40, with a diameter of 7.8mm.
  • the length of the aerosol generating substrate 10 is 13.5mm, the length L1 of the first lumen section 20 is 10mm, and the wall thickness W1 is 2.1mm; the length L2 of the second lumen section 30 is 12mm, and the wall thickness W2 is 1.2mm;
  • the length L3 of the filter section 40 is 8mm.
  • the ratio V 2 /V 1 of the volume V 2 of the second cavity 31 of the second lumen section 30 to the volume V 1 of the first cavity 21 of the first lumen section 20 is 2.9.
  • Sample 2 includes an aerosol generating matrix 10, a first lumen section 20, a second lumen section 30 and a filter section 40, with a diameter of 7.8mm.
  • the length of the aerosol generating substrate 10 is 13.5mm; the length L1 of the first lumen section 20 is 10mm, and the wall thickness W1 is 2.1mm; the length L2 of the second lumen section 30 is 12mm, and the wall thickness W2 is 0.85mm; The length L 3 of the filter section 40 is 8 mm.
  • the ratio V 2 / V 1 of the volume V 2 of the second cavity 31 of the second lumen section 30 to the volume V 1 of the first cavity 21 of the first lumen section 20 is 3.6.
  • the above-mentioned aerosol-generating products are used with heated smoking devices.
  • a smoking machine is used and tested under certain parameter conditions.
  • One of the smoking methods is listed below, specifically As follows: Put the above-mentioned atomized tobacco products into the same heated smoking device for smoking, and set the smoking machine parameters (such as using bell-shaped wave smoking, the smoking plan is the Canadian deep smoking method, and the smoking volume is 55mL). Make the button pressing time of the heated smoking device 2.4s, start taking the first puff after an interval of 14.6s, and take each puff for 2s. Take the next puff after an interval of 28 seconds. After taking the 8th puff, end the collection and capture each cigarette. 8 puffs of aerosol.
  • the heating methods of the heated smoking article include but are not limited to the use of electric heating, electromagnetic heating and infrared heating.
  • thermocouple temperature measurement method was used to fix the thermocouple 1 mm from the center of the smoke outlet of the aerosol-generating product. The thermocouple was connected to the temperature data acquisition system for measuring inhalation. The temperature of the smoke at the mouth end of the aerosol-generated product when inhaled.
  • Sample 3 includes an aerosol generating substrate 10, a first lumen section 20, a second lumen section 30 and a filter section 40, with a diameter of 7.8mm.
  • the length of the aerosol generating substrate 10 is 13.5mm; the length L1 of the first lumen section 20 is 12mm, and the wall thickness W1 is 2.1mm; the length L2 of the second lumen section 30 is 10mm, and the wall thickness W2 is 1.2mm;
  • the length L 3 of the filter section 40 is 8 mm.
  • the ratio V 2 / V 1 of the volume V 2 of the second cavity 31 of the second lumen section 30 to the volume V 1 of the first cavity 21 of the first lumen section 20 is 2.0. Compare Sample 3 to Sample 1.
  • the comparison between Sample 1 and Sample 3 in Example 2 is to keep the wall thickness of the first cavity 21 and the second cavity 31 the same, and adjust the first lumen section 20 and the second tube.
  • the relative length of the two parts of the length of the cavity section 30 causes the V 2 /V 1 ratio to also change. It can be seen from the comparison results that by increasing the length of the second lumen section 30 and reducing the length of the first lumen section 20, the ratio of V 2 /V 1 is increased, which also helps to increase the aerosol capture volume and effectively reduce Flue gas outlet temperature.
  • the cavity volumes of the first lumen section 20 and the second lumen section 30 are adjusted so that V 2 / The V 1 ratio is controlled within the set range, which helps to effectively reduce the flue gas outlet temperature.
  • the length of the second lumen section 30 is increased or the wall thickness of the second cavity 31 is reduced. That is, in Keeping other factors unchanged, reduce the equivalent wall thickness of the second cavity section 30 to reduce the heat transfer thermal resistance of the cavity wall of the second cavity 31, that is, increase the V 2 /V 1 value, Can promote smoke cooling.
  • this embodiment uses a combination of a small-volume first cavity 21 and a large-volume second cavity 31.
  • the wall thickness and strength of the small-volume first cavity 21 can prevent the heating element from being inserted into the aerosol. Axial displacement of the tobacco material that may occur during creation of the matrix.
  • the pressure decreases, and the sudden change in the flow field is conducive to enhancing the flow of smoke in the second cavity 31.
  • the convection heat transfer promotes the reduction of aerosol temperature and improves the smoking effect and fullness; at the same time, increasing the volume of the second cavity 31 can also reduce the trapping of smoke by the second cavity 31, ensuring the taste of the smoke. Improve your smoking experience.
  • outlet flue gas temperatures below 65°C are acceptable to most consumers, while those above 70°C are basically unacceptable to consumers.
  • the technical solution of the embodiment of the present application can make the outlet flue gas temperature lower than 65°C. Therefore, it is possible to reduce the flue gas temperature without drilling holes and diluting the flue gas, and can take into account the outlet.
  • the temperature of the smoke is reduced to a temperature suitable for smoking and the taste of the smoke is maintained, thereby improving the smoking experience.
  • the outer layer of the aerosol-generating product also includes packaging materials for wrapping the outer surfaces of the aerosol-generating matrix 10, the first lumen section 20, the second lumen section 30, and the filter section 40, so that the above four parts are combined. form a whole.
  • the packaging material includes paper, and the wrapping paper used is preferably made of air-impermeable material.
  • the internal parts of the aerosol-generating product can be combined so that different lengths of wrapping paper can be used in different ways. In another specific implementation, there may be no wrapping paper.
  • the aerosol-generating matrix 10 includes but is not limited to tobacco substances, aerosol-forming agents, flavor substances, etc., wherein the aerosol-forming agent accounts for at least about 10% by dry weight in the aerosol-generating matrix 10 . Improve the smoking effect.
  • Tobacco substances include, but are not limited to, shredded tobacco, shredded tobacco flakes, tobacco particles, and combinations thereof.
  • the aerosol-generating substrate 10 may include, for example, one or more of the following: powders, granules, pellets, chips, thin strips, strips or sheets, materials containing herb leaves, tobacco leaves, tobacco ribs materials, reconstituted tobacco, homogenized tobacco, extruded tobacco, deciduous tobacco and expanded tobacco.
  • the aerosol-generating matrix 10 may be in loose form, or may be provided in a suitable container or cartridge.
  • the aerosol-generating substrate 10 may contain additional tobacco or non-tobacco volatile flavor compounds that are released when the substrate is heated.
  • the aerosol-generating substrate 10 may also contain one or more capsules that contain, for example, additional tobacco or non-tobacco volatile flavor compounds, and such capsules may melt during heating of the aerosol-generating substrate 10 .
  • homogeneous tobacco refers to a material formed by agglomerating particulate tobacco.
  • Homogenized tobacco may be in sheet form. It may be formed by agglomerating particulate tobacco obtained by grinding or otherwise pulverizing one or both of tobacco leaves and tobacco stems.
  • the sheet of homogeneous tobacco material may include one or more of tobacco dust, tobacco fines, and other particulate tobacco by-products formed during, for example, handling, handling, and shipping of tobacco.
  • the sheet of homogeneous tobacco material may include one or more intrinsic binders that are endogenous to the tobacco, one or more extrinsic binders that are extrinsic to the tobacco, or a combination thereof, to help coalesce the particulate tobacco.
  • the sheet of homogeneous tobacco material may include other additives including, but not limited to, tobacco and non-tobacco fibers, aerosol formers, humectants, plasticizers, flavors, fillers, aqueous solvents and non-aqueous solvents. and combinations thereof.
  • Suitable extrinsic binders for inclusion in sheets of homogenized tobacco material for use in the aerosol-generating matrix include, but are not limited to: gums such as guar gum, synthetic biopolymer gums, acacia gum, and locust bean gum. .
  • Cellulose binders such as hydroxypropyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose and ethyl cellulose.
  • Polysaccharides such as starch, organic acids such as alginic acid, conjugate base salts of organic acids such as sodium alginate, agar, pectin, and combinations thereof.
  • the aerosol-generating matrix 10 may be provided on or embedded in a thermally stable carrier.
  • the carrier may be in the form of powders, granules, pellets, chips, strips, strips or sheets.
  • the support may be a tubular support with a thin layer of solid matrix deposited on its inner surface or on its outer surface or both. This tubular support may be formed from, for example, paper or paper-like material, nonwoven carbon fiber mat, low mass open mesh or perforated metal foil, or any other thermally stable polymer matrix.
  • the aerosol-generating matrix 10 can also be deposited on the surface of the carrier, for example in the form of a sheet, foam, gel or slurry.
  • the aerosol-generating matrix 10 may be deposited over the entire surface of the carrier or, alternatively, may be deposited in a pattern to provide non-uniform fragrance delivery during use.
  • first lumen section 20, the second lumen section 30 and the filter section 40 are collectively referred to as a filter part.
  • the filter part mainly plays the role of reducing the release of harmful substances and lowering the aerosol temperature.
  • the first lumen section 20 and the second lumen section 30 can be two independent lumen sections, or can be two parts of one lumen section with different inner diameters.
  • the materials of the first lumen section 20 , the second lumen section 30 and the filter section 40 include at least one of the following: acetate fiber tow, propylene fiber tow, polylactic acid fiber tow, paper and polymer.
  • Both the first lumen section 20 and the second lumen section 30 have a cavity structure, which retains less aerosol flowing through the first cavity 21 and the second cavity 31 , thereby ensuring that as much aerosol as possible can pass through and be delivered to consumers.
  • the filter section 40 has a solid core structure. On the one hand, it filters harmful substances in the aerosol, such as effectively reducing the release of harmful substances such as NNK, crotonaldehyde, phenol, HCN, ammonia and BaP.
  • the filter section 40 adopts filament bundles with high single denier and low total denier.
  • the single denier of the filament bundles of the filter section 40 is greater than or equal to 10 denier.
  • the single denier of the filament bundles of the filter section 40 is The denier is 22 denier.
  • the total denier of the tows in filter section 40 is 27,000 denier Er - 35,000 denier, further, the total denier is 32,000 denier.
  • the total denier of the tow also known as the total density of the tow, is a product quality index represented by the weight value of a tow of a certain length.
  • the embodiments of the present application also disclose a method for preparing an aerosol-generating product, which is used to prepare the above-mentioned aerosol-generating product.
  • the first lumen section 20 , the second lumen section 30 and the filter section 40 are first respectively formed, and then the first lumen section 20 , the second lumen section 30 and the filter section 40 are formed using molding paper.
  • Composite into a three-element composite filter rod, and finally, the three-element composite filter rod and the aerosol-generating matrix 10 are compounded into an aerosol-generating product using tipping paper.
  • the order in which the aerosol generating substrate 10, the first lumen section 20, the second lumen section 30 and the filter section 40 are combined during the preparation process is not limited.
  • the aerosol generating base 10 and the first lumen section 20 are first combined to form a first combined body, the second lumen section 30 and the filter section 40 are combined to form a second combined body, and then the first combined body is formed.
  • the conjugate and the second conjugate are connected to form an aerosol-generating article.
  • the forming of the first lumen section 20 and the second lumen section 30 includes the following steps: after the filament bundle is opened and sprayed with triacetin, it is introduced into the filter rod forming cigarette cavity through a high-pressure nozzle, and then the cigarette is formed.
  • the first lumen section 20 and the second lumen section 30 (ie, the hollow filter rod) are formed in the cavity.
  • the filter rod molding smoke chamber is composed of two parts, namely a high-temperature steam rapid solidification section and a low-temperature cooling strip rapid cooling and shaping section, and a core rod for hollow filter rod cavity shaping is provided inside the smoke cavity.
  • the core rod has a hollow core structure, and the hollow core rod is located at the center of the filter rod.
  • Embodiments of the present application also disclose an aerosol generation system, including the above-mentioned aerosol generation product and an aerosol generation device.
  • the aerosol generation device includes a heating element.
  • the heating element is used to be inserted into the aerosol generation base 10 to heat the aerosol generation.
  • the substrate 10 in turn generates aerosol.

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Abstract

本发明公开了一种气溶胶生成制品，用于产生气溶胶；第一管腔段，连接于气溶胶生成基体的下游端，第一管腔段设置有沿轴向贯通的第一空腔；第二管腔段，设置于第一管腔段的下游端，第二管腔段设置有沿轴向贯通的第二空腔，第一空腔与第二空腔相连通；其中，第一空腔与第二空腔在径向上与外界相隔断；第二空腔的体积大于第一空腔的体积，且第二空腔壁厚小于第一空腔壁厚。本发明能够在降低气溶胶温度的同时不影响烟气口味，提升消费者体验，工艺简单成本低。本发明还提供了一种气溶胶生成制品的制备方法，还公开了一种气溶胶生成系统。

Description

一种气溶胶生成制品及制备方法及气溶胶生成系统 技术领域
本发明涉及烟草制品领域，特别涉及一种气溶胶生成制品及制备方法及气溶胶生成系统。
背景技术
随着人们健康意识的提高，低危害卷烟目前已经成为烟草未来发展的趋势。雾化烟草制品的原理是气雾产生基体(主要为烟草原料)吸收加热器提供的外源热量，使其自身温度升高并释放气溶胶。由于采用只加热气雾产生基体而非燃烧，减少了烟草高温燃烧产生的有害成分，且侧流烟气和环境烟气的释放量也明显降低。雾化烟草制品相比电子烟而言，气雾产生基体以烟草物料为主要原料，其香气更接近传统卷烟，因此广受消费者青睐。
目前，雾化烟草制品存在的主要问题有发烟效果不佳、丰满度不足、气溶胶入口温度高等。发烟效果不佳和烟气口味平淡等问题主要与雾化烟草制品结构设计及气溶胶生成基质配方及调香等因素有关。气溶胶入口温度高主要因雾化烟草制品气溶胶通路相对较短，对气溶胶的过滤效果低，气溶胶中的水分含量高，使得消费者的感知温度较高。
公开号为CN104010531B的中国专利文献，公开了与气雾产生装置一起使用的气雾产生制品，其涉及一种气雾产生制品和一种使用气雾产生制品的方法。这种气雾产生制品包括气雾形成基体，该气雾形成基体当由气雾产生装置的内部加热元件加热时用来产生可吸入气雾。这种气雾产生制品还包括冷却元件，使用聚集的可生物降解聚合物材料，比如聚集的聚乳酸薄片。但由于该气溶胶生成制品的整体结构复杂，并且制造复杂、成本高昂，制造此类多元件气溶胶生成制品通常需要相当复杂的制造机械和工艺技术。
中空管状结构结合通风技术是降低雾化烟草制品气溶胶温度的有效手段之一。当流过雾化烟草制品的空气与气溶胶颗粒的混合物到达通风区时，经由通风区抽吸到中空管状段的外部空气与气溶胶混合，迅速降低气溶胶混合物的温度。将通风区设置在离气溶胶生成制品衔口段距上游端一定距离处、冷却段有效地设置在衔口的紧邻上游，有助于气溶胶颗粒的成核和生长。
如公开号为CN113163850A的专利，公开了一种用于在加热时产生可吸入气溶胶的气 溶胶生成制品，该气溶胶生成制品包括：气溶胶生成基质的条以及在条与烟嘴段之间的位置处的中空管状段。中空管状段与条和烟嘴段纵向对准。此外，中空管状段限定一直延伸到烟嘴段的上游端的腔。气溶胶生成制品还包括在沿着中空管状段的距中空管状段上游端小于约18毫米位置处的通风区。中空管状段的周边壁的壁厚小于约1.5毫米。气溶胶生成基质的条至少包括气溶胶形成剂，气溶胶生成基质的条具有以干重计至少约10％的气溶胶形成剂含量。但这种采用通风方式的中空管状降温方式，存在稀释烟气的结果，影响消费者体验，同时增加了制造设备成本，提高了工艺复杂度，降低生产效率。
发明内容
本发明的目的在于解决目前降低雾化烟草制品气溶胶温度的方式存在稀释烟气，影响消费者的体验，以及工艺复杂，增加生产成本的问题。本发明提供了一种气溶胶生成制品，能在降低气溶胶温度的同时不影响烟气口味，提升消费者体验，工艺简单成本低。
为解决上述技术问题，本发明的实施方式公开了一种气溶胶生成制品，包括：
气溶胶生成基体，用于产生气溶胶；
第一管腔段，连接于气溶胶生成基体的下游端，第一管腔段设置有沿轴向贯通的第一空腔；
第二管腔段，设置于第一管腔段的下游端，第二管腔段设置有沿轴向贯通的第二空腔，第一空腔与第二空腔相连通；
其中，第一空腔与第二空腔在径向上与外界相隔断；第二空腔的体积大于第一空腔的体积，且第二空腔壁厚小于第一空腔壁厚。
采用上述技术方案，利用“小空腔结构+大空腔结构”的组合形式，即小体积的第一管腔段的第一空腔体积和大体积的第二管腔段结合的方式，同时，第二空腔壁厚小于第一空腔壁厚，能够使得加热后产生的气溶胶经第一空腔到第二空腔时压力降低，该流场的突变有利于增强第二空腔内壁面的对流换热进而促进气溶胶温度的降低；同时，壁厚越薄对应热传递的热阻越小，因而当烟气流经第二空腔内时，能够充分的通过管腔壁与外界环境之间进行换热，进一步提高降温效果。另一方面，烟气温度同时关联于发烟效果和丰满度，烟气温度被有效降低还可以促使烟气成分的冷凝雾化，提升发烟效果和丰满度。
作为一具体实施方式，还包括过滤段，连接于第二管腔段的下游段，气溶胶生成基体经加热后产生的气溶胶能够依次经过第一管腔段、第二管腔段以及过滤段。
作为一具体实施方式，第二空腔的体积与第一空腔的体积满足以下条件：
1.5≤V2/V1≤5
其中，V1为第一空腔的体积，V2为第二空腔的体积。
作为一具体实施方式，第二空腔壁厚小于等于1.5mm。
作为一具体实施方式，第二管腔段的长度和/或过滤段的长度小于等于第一管腔段的长度。
作为一具体实施方式，第一管腔段、第二管腔段及过滤段的长度还满足以下条件：
L3/(L1+L2)≤0.5
其中，L1为第一管腔段的长度，L2为第一管腔段的长度，L3为过滤段的长度。
作为一具体实施方式，第一管腔段、第二管腔段的长度还满足以下条件：
L2/L1≥1.5
其中，L1为第一管腔段的长度，L2为第一管腔段的长度。
作为一具体实施方式，气溶胶生成基体包括气溶胶形成剂，气溶胶形成剂以干重计在气溶胶生成基体占至少10％的含量。
作为一具体实施方式，第一管腔段、第二管腔段及过滤段的材料包括以下至少一种：醋纤丝束、丙纤丝束、聚乳酸丝束、纸。
本申请另一实施例还公开了一种气溶胶生成制品制备方法，用于制备上述气溶胶生成制品，包括以下步骤：
第一管腔段、第二管腔段及过滤段各自成型；
采用成型纸将第一管腔段、第二管腔段及过滤段复合成三元复合滤棒；
将三元复合滤棒与气溶胶生成基体复合成气溶胶生成制品；
其中，第一管腔段和/或第二管腔段的成型包括以下步骤：
丝束经开松、喷洒三醋酸甘油酯处理后，由高压喷嘴引入滤棒成型烟腔进行成型。
本申请另一实施例还公开了一种气溶胶生成系统，包括：
上述气溶胶生成制品；
气溶胶产生装置，气溶胶产生装置包括加热元件，加热元件用于加热气溶胶生成基体以生成气溶胶。
附图说明
图1示出本发明实施例气溶胶生成制品的结构示意图；
图中：10-气溶胶生成基体、20-第一管腔段、21-第一空腔、30-第二管腔段、31-第二空腔、40-过滤段。
具体实施方式
以下由特定的具体实施例说明本发明的实施方式，本领域技术人员可由本说明书所揭示的内容轻易地了解本发明的其他优点及功效。虽然本发明的描述将结合较佳实施例一起介绍，但这并不代表此发明的特征仅限于该实施方式。恰恰相反，结合实施方式作发明介绍的目的是为了覆盖基于本发明的权利要求而有可能延伸出的其他选择或改造。为了提供对本发明的深度了解，以下描述中将包含许多具体的细节。本发明也可以不使用这些细节实施。此外，为了避免混乱或模糊本发明的重点，有些具体细节将在描述中被省略。需要说明的是，在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。
应注意的是，在本说明书中，相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本实施例的描述中，需要说明的是，术语“内”、“底”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
在本实施例的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本实施例中的具体含义。
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明的实施方式作进一步地详细描述。
本实施例提供一种气溶胶生成制品，参考图1，包括气溶胶生成基体10、第一管腔段20、第二管腔段30及过滤段40，以气溶胶生成制品远离嘴端的一端为上游端，靠近嘴端的一端为下游端，气溶胶生成基体10、第一管腔段20、第二管腔段30及过滤段40由上游端至下游端依序设置(即沿图1中X方向所示依序设置)。其中，气溶胶生成基体10用于产生气溶胶消费者抽吸。第一管腔段20连接于气溶胶生成基体10的下游端，第一管腔段20设置有沿轴向贯通的第一空腔21。第二管腔段30连接于第一管腔段20的下游端，第二管腔段30设置有沿轴向贯通的第二空腔31。第一空腔21与第二空腔31形成烟气通道。气溶胶生成基体10经加热产生烟气后，烟气依次经过第一管腔段20、第二管腔段30和过滤段40，过滤段40为非空腔结构，用于过滤烟气有害物质。本实施例中，第一空腔21与第二空腔31在径向上与外界相隔断，即，第一空腔21与第二空腔31不具备通风特征；且第二空腔31的壁厚小于第一空腔21的壁厚，第二空腔31的体积大于第一空腔21的体积。
在另一具体实施方式中，气溶胶生成基体10、第一管腔段20、过滤段40及第二管腔段30沿气溶胶生成制品的上游端至下游端依次设置，即，气溶胶生成基体10经加热产生烟气后，烟气依次经过第一管腔段20、过滤段40和第二管腔段30。
具体地，第一空腔21和/或第二空腔31内的气溶胶与外界环境之间的换热途径主要包括空腔内壁面的对流换热、壁内的导热以及外壁面与环境的对流换热三部分。采用上述技术方案，利用“小空腔结构+大空腔结构”的组合形式，即小体积的第一管腔段20的第一空腔21体积和大体积的第二管腔段30结合的方式，同时，第二空腔31壁厚小于第一空腔21壁厚，能够使得加热后产生的气溶胶经第一空腔21到第二空腔31时压力降低，该流场的突变有利于增强第二空腔31内壁面的对流换热进而促进气溶胶温度的降低；同时，壁厚越薄对应热传递的热阻越小，因而当烟气流经第二空腔31内时，能够充分的通过管腔壁与外界环境之间进行换热，进一步提高降温效果。另一方面，烟气温度同时关联于发烟效果和丰满度，烟气温度被有效降低还可以促使烟气成分的冷凝雾化，提升发烟效果和丰满度。
另外，如上所述，利用“小空腔结构+大空腔结构”的组合形式可实现烟气的有效降温，无需在第一管腔段20或第二管腔段30上打孔，即第一空腔21与第二空腔31在径向上与外界是相隔断的，相比于目前在管腔段上额外打孔以实现降温的方式，本实施例方案可以避免因通过孔引入外界空气而致使烟气稀释的问题发生，即，本实施例技术方案可以兼顾降低气溶胶温度和保证烟气口感两方面。另一方面，第一管腔段20和第二管腔段30均为空腔结构，对流经的气溶胶截留少，可保证尽量多的气溶胶通过并递送给消费者。
具体地，第一空腔21的内径可以依据烟草段的直径相应设置，以防止出现加热元件插入气溶胶生成基体10过程中，因第一空腔21内径过大而使得气溶胶生成基体10内发生轴向位移，甚至导致气溶胶生成基体10中的烟草物质松散，不利于烟草物质之间的传热。
示例性地，第一空腔21与第二空腔31截面形状包括但不限于圆形、椭圆形、星形。第一空腔21与第二空腔31截面形状可以相同，也可以不同，对此不作限制。
进一步地，第二空腔31的体积与第一空腔21的体积满足以下条件：1.5≤V2/V1≤5，其中，V1为第一空腔21的体积，V2为第二空腔31的体积。第二空腔31的体积与第一空腔21的体积的比值范围主要通过调节第二空腔31内径以及第一管腔段20和/或第二管腔段30沿轴向的长度来实现。示例性地，第一空腔的内径为2.5mm～4.5mm，第二空腔的内径为3.5mm～6mm。第一空腔和第二空腔的外径(即气溶胶生成制品的外径)不做限制。
示例性地，第一管腔段20和/或第二管腔段30的长度均不小于5mm，以便于加工，并保证长度稳定。
示例性地，第一空腔21的壁厚为W1，第二空腔31的壁厚为W2，则W1>W2，W2≤1.5mm。优选地，W2≤1.2mm。由于第一空腔21和/或第二空腔31内的气溶胶与外界环境之间的换热途径主要包括空腔内壁面的对流换热、壁内的导热以及外壁面与环境的对流换热，吸烟环境条件相近时，第一空腔21和/或第二空腔31内外壁的对流换热系数相差不大。而薄壁材料的导热系数较低，所以降温效果主要由薄壁的壁厚主导，壁厚越薄对应热传递的热阻越小，空腔内烟气与外界环境之间的换热越充分，降温效果越好。故减小第二空腔31的壁厚也即增大第二空腔31的内径，利于降低气溶胶温度。
同时如上，第一管腔段20壁需具备支撑气溶胶生成基体10的功能，第一空腔21内径过大会使得气溶胶生成基体10加热时易发生轴向位移，甚至导致气溶胶生成基体10中烟草物质松散，不利于烟草物质之间的传热，故第一空腔21的内径不宜过大。但是，第一空腔21的内径过小则易导致产生的气雾在第一管腔段20壁被截留过多，影响烟气口感。故第一空腔21与第二空腔31的相对比值需满足一定范围，才能满足既降低烟气温度，又保证烟气口感，同时防止气溶胶生成基体10发生位移。
具体地，第二空腔31的壁厚为其外壁与内腔壁之间测得的最小距离。实际上，给定位置处的距离是沿着基本垂直于第二空腔31的外壁与内腔壁的方向测量的。对于具有基本圆形横截面的空腔元件，该距离基本是沿着第二空腔31的径向方向测量的。
示例性地，本实施例中，第一管腔段20、第二管腔段30及过滤段40的长度还满足以下条件：L1≤L2，L3≤L2，即，第二管腔段30的长度分别大于第一管腔段20和过滤段40的长度。进一步满足，L3/(L1+L2)≤0.5，即，第一管腔段20和所述第二管腔段30的长度之和大于过滤段40的长度的两倍。优选地，L2/L1≥1.5。
其中，第一管腔段20长度为L1，第二管腔段30长度为L2，过滤段40长度为L3。
如此设置，使得第二管腔段30的长度增加，因此增加烟气在第二管腔中的换热时间，能够实现烟气更好的降温。
以下具体描述本申请实施例的气溶胶生成制品的不同参数下，气溶胶捕集量以及烟气出口温度的比对。
实施例一
样品1包括气溶胶生成基体10、第一管腔段20、第二管腔段30及过滤段40，直径为7.8mm。气溶胶生成基体10长度为13.5mm，第一管腔段20长度L1为10mm，壁厚W1为2.1mm；第二管腔段30长度L2为12mm，壁厚W2为1.2mm；过滤段40长度L3为8mm。第二管腔段30的第二空腔31体积V2与第一管腔段20的第一空腔21体积V1的比值V2/V1为2.9。
样品2包括气溶胶生成基体10、第一管腔段20、第二管腔段30及过滤段40，直径为7.8mm。气溶胶生成基体10长度为13.5mm；第一管腔段20长度L1为10mm，壁厚W1为2.1mm；第二管腔段30长度L2为12mm，壁厚W2为0.85mm；过滤段40长度L3为8mm。第二管腔段30的第二空腔31体积V2与第一管腔段20的第一空腔21体积V1的比值V2/V1为3.6。
上述气溶胶生成制品配合加热烟具使用，在比较气溶胶生成制品样品效果时，为保证抽吸条件一致性，使用吸烟机并在一定参数条件下进行测试，以下列举其中一种抽吸方法，具体为：将上述雾化烟草制品分别放入相同的加热烟具中进行抽吸，设置吸烟机参数(如采用钟形波抽吸，抽吸方案为加拿大深度抽吸法，抽吸容量为55mL)。使加热烟具按键时间2.4s，间隔14.6s后开始抽吸第一口，每口抽吸2s，间隔28秒后抽吸下一口，抽吸第8口后，结束捕集，每支烟捕集8口气溶胶。其中，加热烟具的加热方式包括但不限于使用电加热、电磁加热和红外加热。
为比较气溶胶生成制品雾化效果及吸食者从气雾中吸食到的化学物质的量，采用玻璃纤维滤片烟气捕集器收集气溶胶，用于测定气溶胶捕集量，气溶胶捕集物用于气相色谱法测定烟碱及其他化学物质的含量。同时为比较消费者抽吸气溶胶生成制品的温度感受，采用热电偶测温法将热电偶固定于气溶胶生成制品烟气出口中心1毫米处，热电偶连接温度数据采集系统，用于测定抽吸时气溶胶生成制品嘴端出口处烟气的温度。
表1实施例1中样品气溶胶捕集量以及出口烟气温度
由表1可以看出，在实施例1中，在其他参数一致的情况下，减小第二空腔31壁厚，也即V2/V1值增大，有利于降低第二空腔31部分热传递的热阻，第二空腔31内烟气与外界环境之间的换热越充分，降温效果越好。同时，第二空腔31的增大，也降低了第二管腔段30对烟气的截留作用，气溶胶捕集量也有所增加。
实施例二
样品3包括气溶胶生成基体10、第一管腔段20、第二管腔段30及过滤段40，直径为7.8mm。气溶胶生成基体10长度为13.5mm；第一管腔段20长度L1为12mm，壁厚W1为2.1mm；第二管腔段30长度L2为10mm，壁厚W2为1.2mm；过滤段40长度L3为8mm。第二管腔段30的第二空腔31体积V2与第一管腔段20的第一空腔21体积V1的比值V2/V1为2.0。将样品3与样品1进行对比。
表2实施例2对照样品气溶胶捕集量以及出口烟气温度
由表2可以看出，在实施例2中样品1和样品3的对比，是保持第一空腔21和第二空腔31的壁厚相同，而调整第一管腔段20和第二管腔段30长度两部分的相对长度(总长度不变)，使得V2/V1比值也发生变化。由对比结果可知，通过增加第二管腔段30长度，减小第一管腔段20长度的方式使V2/V1比值的增大，也有助于提高气溶胶捕集量，并有效降低烟气出口温度。说明在第一空腔21和第二空腔31壁厚不变的情况下，第一管腔段20的长度缩短，降低了对烟气的截留效应；而第二管腔段30的加长，增强了烟气在第二空腔31内的换热，提高了对烟气的降温效果。
也就是说，在第一管腔段20和第二管腔段30总长和外径相同的条件下，调整第一管腔段20和第二管腔段30的空腔体积，使得V2/V1比值控制在设定范围，有助于有效降低烟气出口温度。具体表现为增加第二管腔段30的长度或减小第二空腔31的壁厚。即，在 保持其他因素不变的情况下，减小第二管腔段30的当量壁厚，以减小第二空腔31腔壁的传热热阻，即，使V2/V1值增大，能促进烟气降温。或，在保持第一管腔段20和第二管腔段30总长不变的情况下，减小第一管腔段20长度L1，增大第二管腔段30长度L2，使V2/V1值增大，也可以促进烟气降温。另一方面，增大第二管腔段30的第二空腔31体积的同时，也会降低第二空腔31材料对烟气的截留作用，保证消费者吸入足够烟气的量。
综上所述，本实施例采用小体积的第一空腔21与大体积的第二空腔31的组合形式，小体积的第一空腔21的壁厚及强度能够避免加热元件插入气溶胶产生基体过程中可能发生的烟草物质的轴向位移。且气溶胶产生基体加热后的产生的气溶胶经小体积的第一空腔21到大体积的第二空腔31时压力降低，流场的突变有利于增强烟气在第二空腔31内的对流换热而促进气溶胶温度的降低，提升发烟效果和丰满度；同时，增加第二空腔31体积，也可使第二空腔31降低对烟气的截留，保证烟气口感，提升抽吸体验。
一般来说，出口烟气温度低于65℃大部分消费者都是能够接受的，高于70℃消费者基本都是不能接受的。如实施例一和实施例二所示，本申请实施例技术方案能够使出口烟气温度低于65℃，因此可实现在无需打孔不稀释烟气的情况下降低烟气温度，能够兼顾出口烟气温度降至适宜抽吸的温度和保持烟气口感，达到提升抽吸体验的效果。
进一步地，气溶胶生成制品外层还包括包装材料，用于包裹气溶胶生成基体10、第一管腔段20、第二管腔段30和过滤段40的外表面，以使上述四部分复合形成一个整体。示例性地，包装材料包括纸，所用包裹纸优先选用不透气材料。气溶胶生成制品内部可因各部分结合，以使上述方式不同选用不同长度的包裹纸。在另一具体实施中，也可无包裹纸。
进一步地，气溶胶生成基体10包括但不限于烟草物质、气溶胶形成剂和香味物质等，其中，气溶胶形成剂以干重计在气溶胶生成基体10中占至少约10％的含量，以提升发烟效果。
烟草物质包括但不限于烟丝、烟草薄片丝、烟草颗粒以及其组合。示例性地，气溶胶生成基体10可包括例如以下中的一种或多种：粉末、颗粒、小球、碎片、细条、条状物或片材，材料含有草本植物叶、烟草叶、烟草肋料、再造烟草、均质烟草、挤出烟草、落叶烟草和膨胀烟草。气溶胶生成基体10可呈疏松形式，或可在合适的容器或筒中提供。任选地，气溶胶生成基体10可含有在基体加热时释放的额外烟草或非烟草挥发性香味化合物。气溶胶生成基体10也可含有一个或多个封壳，该一个或多个封壳例如包含额外烟草或非烟草挥发性香味化合物，且此类封壳可在气溶胶生成基体10的加热期间熔化。
具体的，均质烟草指代通过使微粒烟草聚结而形成的材料。均质烟草可呈片材形式。 其可通过聚结微粒烟草来形成，微粒烟草通过研磨或以其他方式粉碎烟草叶片和烟草叶梗中的一种或两种而获得。替代地或另外，均质烟草材料的片材可包括在例如烟草的处理、操作和运送期间形成的烟草尘、烟草细粒和其他微粒烟草副产品中的一种或多种。均质烟草材料的片材可包括为烟草内源性粘合剂的一种或多种固有粘合剂、为烟草外源性粘合剂的一种或多种外来粘合剂或其组合，以帮助使微粒烟草聚结。替代地或另外，均质烟草材料的片材可包括其他添加剂，包含但不限于烟草和非烟草纤维、气溶胶形成剂、保湿剂、增塑剂、香料、填充剂、水性溶剂和非水性溶剂以及其组合。
用来包括在用在气溶胶产生基体中的均化烟草材料的薄片中的适当的外来粘合剂包括但不限于：胶，例如瓜尔豆胶、合成生物聚合胶、阿拉伯树胶及刺槐豆胶。纤维素粘合剂，例如羟丙基纤维素、羧甲基纤维素、羟乙基纤维素、甲基纤维素及乙基纤维素。多糖，例如淀粉、诸如藻酸之类的有机酸、诸如藻酸钠之类的有机酸的共轭碱盐、琼脂、果胶、以及它们的组合。
任选地，气溶胶生成基体10可提供在热稳定载体上或包埋于热稳定载体中。载体可采用粉末、颗粒、小球、碎片、细条、条状物或片材形式。可替代地，载体可以是管状载体，其内表面上或其外表面上或其内表面和外表面两者上沉积有固体基质薄层。此管状载体可由例如纸或纸样材料、非织造碳纤维垫、低质量开网金属丝网或穿孔金属箔或任何其他热稳定聚合物基质形成。
气溶胶生成基体10还能够以例如片材、泡沫、凝胶或浆液的形式沉积在载体的表面上。气溶胶生成基体10可沉积在载体的整个表面上，或替代地，可按一定图案沉积，以便在使用期间提供不均匀的香味递送。
进一步地，第一管腔段20、第二管腔段30和过滤段40统称为滤嘴部分。滤嘴部分主要起降低有害物质释放以及降低气雾温度的作用。具体地，第一管腔段20、第二管腔段30可以为两个独立的管腔段，也可以为一个管腔段中不同内径的两个部分。
进一步地，第一管腔段20、第二管腔段30及过滤段40的材料包括以下至少一种，醋纤丝束、丙纤丝束、聚乳酸丝束、纸以及聚合物。第一管腔段20和第二管腔段30都为空腔结构，对流经第一空腔21和第二空腔31的气溶胶截留少，可尽量多地保证气溶胶通过并递送给消费者。过滤段40为实芯结构，一方面过滤气溶胶中的有害物质，如起到有效降低NNK、巴豆醛、苯酚、HCN、氨和BaP等有害物质的释放。进一步地，过滤段40采用高单旦数低总旦数的丝束，示例性地，过滤段40的丝束的单旦数大于等于10旦尼尔，进一步地，过滤段40丝束的单旦数为22旦尼尔。过滤段40的丝束的总旦数为27000旦尼 尔-35000旦尼尔，进一步地，总旦数为32000旦尼尔。丝束总旦数又称丝束总线密度，是以一定长度的丝束的重量值来表示的产品质量指标。在保证支撑强度的前提下，采用高单旦数，但总旦数相对较低的丝束，可使过滤段40的丝束间间隔空间大而减少烟气成分的截留。上述设置，可使滤嘴部分在减害前提下，尽量减少对香味物质、烟碱等物质的截留，保证香味物质、烟碱等物质的有效释放，保证足量烟气成分供给于消费者。
本申请实施例还公开了一种气溶胶生成制品制备方法，用于制备上述气溶胶生成制品。示例性地，制备时，第一管腔段20、第二管腔段30及过滤段40先各自成型，然后使用成型纸将第一管腔段20、第二管腔段30及过滤段40复合成三元复合滤棒，最后将三元复合滤棒与气溶胶生成基体10使用接装纸复合成气溶胶生成制品。气溶胶生成基体10、第一管腔段20、第二管腔段30和过滤段40在制备过程中的结合顺序不做限制。在另一具体实施方式中，先使气溶胶生成基体10和第一管腔段20结合形成第一结合体，第二管腔段30和过滤段40结合形成第二结合体，再使第一结合体和第二结合体连接形成气溶胶生成制品。
示例性地，第一管腔段20和第二管腔段30的成型包括以下步骤：丝束经开松，喷洒三醋酸甘油酯处理后，由高压喷嘴引入滤棒成型烟腔，在成型烟腔中实现第一管腔段20和第二管腔段30(即空芯滤棒)的成型。具体地，滤棒成型烟腔由两部分组成，分别为高温蒸汽快速固化段和低温冷却条快速冷却定型段，且烟腔内部设置有空芯滤棒空腔定型用的芯棒。芯棒为空芯结构，空芯芯棒位于滤棒中心位置，改变空芯芯棒的截面形状，可实现不同异形空芯滤棒的空腔结构。
本申请实施例还公开了一种气溶胶生成系统，包括上述气溶胶生成制品和气溶胶产生装置，气溶胶产生装置包括加热元件，加热元件用于插入至气溶胶生成基体10中以加热气溶胶生成基体10进而产生气溶胶。
虽然通过参照本发明的某些优选实施方式，已经对本发明进行了图示和描述，但本领域的普通技术人员应该明白，以上内容是结合具体的实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。本领域技术人员可以在形式上和细节上对其作各种改变，包括做出若干简单推演或替换，而不偏离本发明的精神和范围。

Claims (11)

  1. 一种气溶胶生成制品，其特征在于，包括：
    气溶胶生成基体，用于产生气溶胶；
    第一管腔段，连接于所述气溶胶生成基体的下游端，所述第一管腔段设置有沿轴向贯通的第一空腔；
    第二管腔段，设置于所述第一管腔段的下游端，所述第二管腔段设置有沿轴向贯通的第二空腔，所述第一空腔与所述第二空腔相连通；
    其中，所述第一空腔与所述第二空腔在径向上与外界相隔断；所述第二空腔的体积大于所述第一空腔的体积，且所述第二空腔壁厚小于所述第一空腔壁厚。
  2. 如权利要求1所述的气溶胶生成制品，其特征在于，还包括过滤段，连接于所述第二管腔段的下游段，所述气溶胶生成基体经加热后产生的气溶胶能够依次经过所述第一管腔段、所述第二管腔段以及所述过滤段。
  3. 如权利要求1所述的气溶胶生成制品，其特征在于，所述第二空腔的体积与所述第一空腔的体积满足以下条件：
    1.5≤V2/V1≤5
    其中，V1为第一空腔的体积，V2为第二空腔的体积。
  4. 如权利要求1所述的气溶胶生成制品，其特征在于，所述第二空腔壁厚小于等于1.5mm。
  5. 如权利要求2所述的气溶胶生成制品，其特征在于，所述第二管腔段的长度和/或所述过滤段的长度小于等于所述第一管腔段的长度。
  6. 如权利要求5所述的气溶胶生成制品，其特征在于，所述第一管腔段、所述第二管腔段及所述过滤段的长度还满足以下条件：
    L3/(L1+L2)≤0.5
    其中，L1为所述第一管腔段的长度，L2为所述第一管腔段的长度，L3为所述过滤段的长度。
  7. 如权利要求5或6所述的气溶胶生成制品，其特征在于，所述第一管腔段、所述第二管腔段的长度还满足以下条件：
    L2/L1≥1.5
    其中，L1为所述第一管腔段的长度，L2为所述第一管腔段的长度。
  8. 如权利要求1所述的气溶胶生成制品，其特征在于，所述气溶胶生成基体包括气溶胶形成剂，所述气溶胶形成剂以干重计在所述气溶胶生成基体中占至少10％的含量。
  9. 如权利要求2所述的气溶胶生成制品，其特征在于，所述第一管腔段、所述第二管腔段及所述过滤段的材料包括以下至少一种：醋纤丝束、丙纤丝束、聚乳酸丝束、纸。
  10. 一种气溶胶生成制品制备方法，用于制备如权利要求2-9中任一项所述的气溶胶生成制品，其特征在于，包括以下步骤：
    所述第一管腔段、所述第二管腔段及所述过滤段各自成型；
    采用成型纸将所述第一管腔段、所述第二管腔段及所述过滤段复合成三元复合滤棒；
    将所述三元复合滤棒与所述气溶胶生成基体复合成气溶胶生成制品；
    其中，所述第一管腔段和/或所述第二管腔段的成型包括以下步骤：
    丝束经开松、喷洒三醋酸甘油酯处理后，由高压喷嘴引入滤棒成型烟腔进行成型。
  11. 一种气溶胶生成系统，其特征在于，包括：
    如权利要求1-9任一项所述的气溶胶生成制品；
    气溶胶产生装置，所述气溶胶产生装置包括加热元件，所述加热元件用于加热所述气溶胶生成基体以生成气溶胶。
PCT/CN2023/098906 2022-08-31 2023-06-07 一种气溶胶生成制品及制备方法及气溶胶生成系统 WO2024045751A1 (zh)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106954893A (zh) * 2017-05-09 2017-07-18 云南中烟新材料科技有限公司 一种四元复合的电加热不燃烧烟支
CN107427079A (zh) * 2015-03-31 2017-12-01 菲利普莫里斯生产公司 用于气溶胶生成装置的加热元件模块
CN108113051A (zh) * 2017-12-07 2018-06-05 共青城道乐投资管理合伙企业（有限合伙） 一种加热不燃烧卷烟滤嘴和加热不燃烧卷烟
CN109998158A (zh) * 2019-04-28 2019-07-12 云南中烟工业有限责任公司 一种用于加热不燃烧卷烟的烟支
CN110292207A (zh) * 2019-03-21 2019-10-01 重庆中烟工业有限责任公司 气溶胶降温过滤单元及低温卷烟
CN211129720U (zh) * 2019-07-05 2020-07-31 博颉(上海)管理咨询有限公司 一种烟雾降温过滤棒及烟雾发生制品
WO2021110540A1 (en) * 2019-12-03 2021-06-10 Philip Morris Products S.A. Aerosol-generating element comprising a filter with a high content of a polyhydroxyalkanoate polymer or copolymer
CN113163850A (zh) * 2018-12-20 2021-07-23 菲利普莫里斯生产公司 具有通风腔的气溶胶生成制品
US20210244083A1 (en) * 2018-10-29 2021-08-12 Nerudia Limited Smoking substitute consumable
CN113662240A (zh) * 2021-09-23 2021-11-19 云南中烟工业有限责任公司 一种刺破式烟芯段加香的气溶胶产生制品
CN218527704U (zh) * 2022-08-31 2023-02-28 上海烟草集团有限责任公司 一种气溶胶生成制品及气溶胶生成系统

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107427079A (zh) * 2015-03-31 2017-12-01 菲利普莫里斯生产公司 用于气溶胶生成装置的加热元件模块
CN106954893A (zh) * 2017-05-09 2017-07-18 云南中烟新材料科技有限公司 一种四元复合的电加热不燃烧烟支
CN108113051A (zh) * 2017-12-07 2018-06-05 共青城道乐投资管理合伙企业（有限合伙） 一种加热不燃烧卷烟滤嘴和加热不燃烧卷烟
US20210244083A1 (en) * 2018-10-29 2021-08-12 Nerudia Limited Smoking substitute consumable
CN113163850A (zh) * 2018-12-20 2021-07-23 菲利普莫里斯生产公司 具有通风腔的气溶胶生成制品
CN110292207A (zh) * 2019-03-21 2019-10-01 重庆中烟工业有限责任公司 气溶胶降温过滤单元及低温卷烟
CN109998158A (zh) * 2019-04-28 2019-07-12 云南中烟工业有限责任公司 一种用于加热不燃烧卷烟的烟支
CN211129720U (zh) * 2019-07-05 2020-07-31 博颉(上海)管理咨询有限公司 一种烟雾降温过滤棒及烟雾发生制品
WO2021110540A1 (en) * 2019-12-03 2021-06-10 Philip Morris Products S.A. Aerosol-generating element comprising a filter with a high content of a polyhydroxyalkanoate polymer or copolymer
CN113662240A (zh) * 2021-09-23 2021-11-19 云南中烟工业有限责任公司 一种刺破式烟芯段加香的气溶胶产生制品
CN218527704U (zh) * 2022-08-31 2023-02-28 上海烟草集团有限责任公司 一种气溶胶生成制品及气溶胶生成系统

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