WO2022099701A1 - 烟草制品及其制备方法 - Google Patents

烟草制品及其制备方法 Download PDF

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Publication number
WO2022099701A1
WO2022099701A1 PCT/CN2020/129096 CN2020129096W WO2022099701A1 WO 2022099701 A1 WO2022099701 A1 WO 2022099701A1 CN 2020129096 W CN2020129096 W CN 2020129096W WO 2022099701 A1 WO2022099701 A1 WO 2022099701A1
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WO
WIPO (PCT)
Prior art keywords
tobacco
tobacco product
aerosol
parts
functional particles
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Application number
PCT/CN2020/129096
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English (en)
French (fr)
Inventor
卜桂华
杜靖
Original Assignee
深圳麦克韦尔科技有限公司
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Priority to PCT/CN2020/129096 priority Critical patent/WO2022099701A1/zh
Publication of WO2022099701A1 publication Critical patent/WO2022099701A1/zh

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    • 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
    • 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
    • A24F40/50—Control or monitoring
    • A24F40/57—Temperature control
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for

Definitions

  • the invention relates to the technical field of tobacco products, in particular to a tobacco product and a preparation method thereof.
  • Heat-not-burn smoking articles are mainly smoking articles that produce aerosols by curing tobacco products containing tobacco at low temperature under the conditions of 200°C to 400°C. Heat-not-burn smoking devices do not directly burn tobacco products, but release aerosols by heating tobacco products, reducing harmful components produced by high-temperature combustion and cracking of tobacco products.
  • heat-not-burn smoking devices are mainly used in conjunction with tobacco products made from tobacco powders, tobacco stems, shredded tobacco pieces and other waste tobacco materials in the cigarette process through a heating element (such as a heating sheet or a heating rod).
  • a heating element such as a heating sheet or a heating rod.
  • current tobacco products are slow to generate aerosols when in use.
  • a tobacco product capable of generating aerosol under microwave conditions comprising tobacco, aerosol-forming agent and functional particles, the functional particles can absorb microwaves, and can convert the absorbed microwaves into thermal energy and then transmit to said tobacco and said aerosol former.
  • a preparation method of a tobacco product comprising the following steps:
  • a tobacco product After mixing tobacco, aerosol-forming agent and functional particles, a tobacco product is prepared, and the functional particles are used for absorbing microwaves, and can convert the absorbed microwaves into heat energy and then transmit them to the tobacco and the aerosol-forming agent .
  • FIG. 1 is a schematic cross-sectional structure diagram of an electronic atomization device provided by an embodiment
  • Fig. 2 is a schematic plan view of the cross-sectional structure of the electronic atomizing device shown in Fig. 1 after being loaded into the tobacco product;
  • FIG. 3 is a partial three-dimensional cross-sectional structural schematic diagram of an electronic atomization device provided by an embodiment
  • Fig. 4 is the microwave distribution simulation schematic diagram when the tobacco product is in the atomizing cavity
  • FIG. 5 is a partial enlarged schematic view of a tobacco product according to an embodiment.
  • shredded tobacco refers to the filaments made from natural tobacco leaves; tobacco sheet refers to the regenerated tobacco leaves made from the waste tobacco material in the cigarette process, such as tobacco powder, tobacco stems, and shredded tobacco chips; Special note, microwave refers to electromagnetic waves with a frequency of 300MHz to 3000GHz.
  • the tobacco product is a heat-not-burn tobacco product, and can form an aerosol under microwaves of 915MHz-30GHz.
  • the tobacco product includes tobacco, an aerosol-forming agent and functional particles, wherein the functional particles can absorb microwaves, convert the absorbed microwaves into heat energy and transmit them to the thermal aerosol-forming agent and tobacco, and at the same time, the functional particles can also reflect microwaves to make the above-mentioned tobacco Other microwave-absorbing components in the article are heated by absorbing the microwaves to form an aerosol.
  • Tobacco is an essential ingredient in the aforementioned tobacco products, including base tobacco.
  • the base tobacco is selected from at least one of cut tobacco and tobacco sheet.
  • the base tobacco is a mixture of cut tobacco and tobacco sheet.
  • the ratio of cut tobacco and tobacco sheet can be adjusted according to actual needs.
  • the tobacco in the above tobacco product further includes at least one of flavor and inorganic filler.
  • Flavoring is added to tobacco to enrich the taste of tobacco products.
  • the inorganic filler added to the tobacco has a certain supporting effect on the basic tobacco and is easy to shape.
  • the types and amounts of spices and inorganic fillers can be selected and adjusted according to actual needs.
  • Aerosol formers are used to form aerosols.
  • the aerosol former contains propylene glycol.
  • the aerosol former adheres to the tobacco to some extent.
  • the aerosol-forming agent contains substances with good microwave absorption properties. Substances with good microwave absorption can be rapidly vaporized by directly absorbing microwaves, thereby producing smoke and achieving heating without burning. Specifically, the loss tangent of a substance with good microwave absorption performance to microwaves of a specific wavelength is greater than 0.1. Furthermore, the mass percentage of the substance with good microwave absorption performance in the aerosol-forming agent is 1% to 50%.
  • the smoking life of the above-mentioned tobacco products has a threshold.
  • the taste of the tobacco products is good and the active ingredients are fully released, but after the threshold is exceeded, the life of the entire tobacco product expires and the active ingredients have been released. Finished, the taste is not good. Therefore, the smoking life of the above-mentioned tobacco product can be precisely controlled by the addition amount of a substance with good microwave absorption properties (eg, propylene glycol) and the number of puffs. also.
  • Microwave heating has the characteristics of uniformity and temperature gradient from the inside to the outside, and there is no problem of insufficient heating of tobacco like the central heating device.
  • the aerosol-forming agent contains at least one of propylene glycol and glycerol. Further, the aerosol forming agent contains propylene glycol, and the mass percentage content of propylene glycol is 1% to 50%. In an optional specific example, the mass percentage content of propylene glycol in the aerosol-forming agent is 2%, 5%, 10%, 15%, 20%, 35% or 45%. Further, the mass percentage content of propylene glycol in the aerosol-forming agent is 5% to 15%.
  • the aerosol-forming agent also contains a nicotinic compound.
  • the problem of poor taste of tobacco products caused by poor quality of tobacco leaves can be solved by adding nicotinic compounds.
  • the problem of inconsistent taste of tobacco products caused by different batches of tobacco leaves can also be improved by adding nicotine compounds.
  • the nicotinic compound is selected from at least one of nicotine and nicotine salts.
  • the mass percentage content of the nicotine compounds in the aerosol-forming agent is 0.1% to 33%. In an optional specific example, the mass percentage content of the nicotinic compound in the aerosol-forming agent is 0.1%, 2%, 8%, 10%, 15%, 20%, 25% or 33%.
  • the aerosol-forming agent may also contain a non-tobacco flavoring agent.
  • the non-tobacco flavoring agent is selected from at least one of alcoholic flavoring agents (eg, menthol) and aldehyde flavoring agents (eg, melon).
  • the non-tobacco flavoring agent is not limited to the above, and other edible non-tobacco flavoring agents can also be used.
  • the functional particles in the above-mentioned tobacco products have at least the following functions: (1) reflect microwaves, so that substances with good microwave absorption properties (such as propylene glycol, glycerol, etc.) in the above-mentioned tobacco products can receive more microwaves, thereby making the microwave absorption properties Good substances can absorb more microwaves; (2) absorb microwaves and heat up rapidly, heating tobacco and aerosol formers nearby.
  • substances with good microwave absorption properties such as propylene glycol, glycerol, etc.
  • the functional particle includes a wave absorbing material, and the dielectric loss tangent or the hysteresis loss tangent of the wave absorbing material is greater than 0.1.
  • the wave absorbing material is selected from at least one of silicon carbide, ZnO, carbon powder, Fe 2 O 3 and Fe 3 O 4 .
  • the shape of the functional particles is granular, and the particle size of the functional particles does not exceed 100 ⁇ m.
  • the particle size of the functional particles is 2.5 ⁇ m, 10 ⁇ m, 15 ⁇ m, 20 ⁇ m, 30 ⁇ m, 40 ⁇ m, 50 ⁇ m, 60 ⁇ m, 70 ⁇ m, 80 ⁇ m or 100 ⁇ m.
  • the particle size of the functional particles is 2.5 ⁇ m to 100 ⁇ m.
  • the particle size of the functional particles is 10 ⁇ m to 60 ⁇ m.
  • the functional particles are porous materials. In other embodiments, the functional particles are fibrous materials.
  • the surface of the functional particle is rough. Roughening the surface of the functional particles can prevent bumping and is conducive to fully atomizing tobacco and aerosol formers.
  • the functional particles are silicon carbide particles.
  • the functional particles are silicon carbide particles with a porous structure. It can be understood that, in some other embodiments, the shape of the functional particles is not limited to granular, and may be other shapes. For example, filamentous etc.
  • the aforementioned tobacco products are in the form of sheets, spheres or ellipsoids.
  • the shape of the above-mentioned tobacco product is not particularly limited, and may also be other feasible shapes.
  • the parts of tobacco are 40 to 98 parts
  • the parts of aerosol forming agent are 1 to 55 parts
  • the parts of functional particles are 1 part servings to 55 servings.
  • the parts of tobacco are 40 to 90 parts
  • the parts of aerosol forming agent are 5 parts to 55 parts
  • the parts of functional particles are 5 parts servings to 55 servings.
  • the parts of tobacco are 40 to 90 parts
  • the parts of aerosol forming agent are 5 to 55 parts
  • the parts of functional particles are 15 parts servings to 45 servings.
  • the parts of tobacco are 60 to 90 parts
  • the parts of aerosol forming agent are 10 parts to 55 parts
  • the parts of functional particles are 10 parts servings to 40 servings.
  • the parts of tobacco are 60 to 70 parts
  • the parts of aerosol forming agent are 10 to 25 parts
  • the parts of functional particles are 15 parts servings to 25 servings.
  • the above-mentioned tobacco products include tobacco, aerosol-forming agents and functional particles, and the above-mentioned tobacco products can quickly generate aerosols by using microwaves of 915MHz to 30GHz. Aerosol can be generated within 1s, and the amount of aerosol smoke generated in 4s is much larger than that of traditional heat-not-burn tobacco products in 4s, and no preheating is required, waiting for 20s.
  • An embodiment of the present invention also provides a preparation method of the above-mentioned tobacco product, the preparation method comprising the following steps:
  • the tobacco product After mixing the tobacco, aerosol-forming agent and functional particles, the tobacco product is prepared.
  • the specific composition and dosage of the tobacco, aerosol-forming agent and functional particles are as described above, and will not be repeated here.
  • it after mixing the tobacco, the aerosol-forming agent and the functional particles, it also includes forming the mixture formed by the tobacco, the aerosol-forming agent and the functional particles.
  • the molding process can be a molding process commonly used in the art.
  • the preparation method of the above tobacco product is simple and convenient, and it is easy to be industrialized.
  • the electronic atomization device 10 further provided by an embodiment of the present invention includes a microwave atomizer 20 and a power source 30 , the microwave atomizer 20 and the power source 30 are connected to each other, and the power source 30 can pass
  • the lithium battery supplies power to the microwave atomizer 20, and the aerosol-generating matrix located in the microwave atomizer 20 can generate heat under the action of microwaves and atomize to form an aerosol, which is essentially a kind of aerosol that can be sucked by the user. smoke.
  • the microwave atomizer 20 includes a housing 100 , a shielding assembly 200 , a cigarette holder 320 and a microwave generating unit 310 .
  • the casing 100 includes a casing 110 and a metal layer 120 , the metal layer 120 is enclosed in the casing 110 , the casing 110 is provided with a mounting hole 111 that communicates with the outside world, and the metal layer 120 is surrounded to form an atomization cavity 121, the atomizing cavity 121 and the mounting hole 111 communicate with each other.
  • the housing 110 can be made of non-metallic materials such as plastic.
  • a cavity can be opened in the housing 110 first, and the cavity is communicated with the mounting hole 111 , and then the metal layer 120 can be attached to the cavity by electroplating After the metal layer 120 is formed, the metal layer 120 surrounds the remaining part of the cavity to form the above-mentioned atomizing cavity 121, and the cross-section of the atomizing cavity 121 can be circular, oval or regular polygon.
  • the casing 110 can be made of a metal material, and the material of the metal material can be exactly the same as the material of the metal layer 120.
  • both the casing 110 and the metal layer 120 can be integrally formed, that is, the entire casing 100 is made of the same metal. material.
  • the microwave generating unit 310 is arranged in the housing 110 and is located outside the atomizing cavity 121.
  • the microwave generating unit 310 can use a miniaturized solid-state microwave semiconductor chip unit, so that the volume of the microwave generating unit 310 can be reduced as much as possible, so that the microwave generating unit 310 can be reduced as much as possible.
  • the installation space occupied by the 310 is reduced, thereby reducing the overall volume of the microwave atomizer 20 and the entire electronic atomization device 10 .
  • the metal layer 120 is provided with a transmission channel 124 , and the transmission channel 124 communicates with the atomization cavity 121 , and the microwaves generated by the microwave generating unit 310 enter the atomization cavity 121 through the transmission channel 124 .
  • the cross section of the transmission channel 124 may be circular, elliptical, racetrack, or regular polygon, and the like.
  • the aerosol generating substrate is a solid tobacco product 40, the tobacco product 40 is accommodated in the atomizing chamber 121, and the tobacco product 40 contains a wave absorbing material.
  • the microwave generating unit 310 transmits microwaves into the atomizing cavity 121 through the transmission channel 124, the wave absorbing material can absorb the microwaves in the atomizing cavity 121, so that the dipole molecules of the wave absorbing material generate high-frequency reciprocation under the action of the microwaves
  • the internal friction is formed by vibration, and finally the tobacco product 40 generates heat under the action of the internal friction force, and the tobacco product 40 will absorb the heat to be atomized to form smoke. Referring to FIG.
  • the composition of the tobacco product 40 is as described above, including the tobacco 410, the aerosol-forming agent 420, and the functional particles 430, and the functional particles 430 can absorb microwaves and can convert the absorbed microwaves into The thermal energy is then transferred to the tobacco 410 and the aerosol former 420 .
  • the tobacco 410, the aerosol-forming agent 420 and the functional particles 430 are uniformly dispersed.
  • this heating method has at least the following defects: (1) The temperature control accuracy of the heating sheet is not good, and when the temperature of the heating sheet is higher than the atomization temperature of the tobacco product 40, it will cause Tobacco products 40 generate a large amount of harmful substances at higher temperatures, thereby posing a hazard to human health. 2The heating sheet heats the tobacco product 40 by means of heat conduction.
  • the heating process will last for about twenty seconds, that is, the user needs to wait for at least twenty seconds Only then can smoke be smoked, so that the tobacco product 40 cannot be rapidly raised to the atomization temperature in a short time to be atomized to form smoke, thereby affecting the sensitivity of the entire electronic atomization device 10 to the user's smoking response. 3. Since the heating sheet is pierced in the tobacco product 40, the edge portion of the tobacco product 40 is farther away from the heating sheet than the central portion, and the heat of the heating sheet will be conducted from the central portion to the edge portion.
  • the edge part absorbs heat later and then reaches the atomization temperature, so that the tobacco product 40 is heated unevenly and cannot ensure that all parts reach the atomization temperature at the same time and atomize to form smoke, thereby affecting the concentration and taste of the smoke.
  • the central portion of the tobacco product 40 may be burnt due to excessive temperature, resulting in a burnt flavor in the smoke. 4
  • the process of the heating element is complex, the yield is low, and the quality is difficult to control, which leads to the high manufacturing cost of the heating element.
  • the heating sheet is easily broken, causing the entire electronic atomization device 10 to fail. Furthermore, the heating sheet reacts with the tobacco product 40 at high temperature to generate smoke, and after absorbing heat, the smoke produces burnt smell and toxic gas, which affects the taste of smoke and endangers human health.
  • the tobacco product 40 absorbs microwaves and generates heat under the action of intramolecular friction, which will at least form the following beneficial effects: 1.
  • the energy of the microwave is easily controlled accurately, thereby making the tobacco
  • the temperature formed after the product 40 is heated has a small deviation from the atomization temperature, which prevents some substances in the tobacco product 40 from chemically reacting at a higher temperature to form a large amount of harmful substances, and prevents the smoke from carrying the harmful substances and being absorbed by the human body.
  • a health hazard is created to ensure the safety of the microwave atomizer 20 and the electronic atomization device 10 .
  • the tobacco product 40 can be rapidly raised to the atomization temperature in a short time and atomized to form smoke.
  • the heating time is extremely short, about one second, thus eliminating the need for a long heating time
  • the resulting long waiting time improves the sensitivity of the entire electronic atomizer device 10 to the user's puff response.
  • Molecules of each branch in the tobacco product 40 vibrate at the same time to generate internal friction, so that the inner and outer parts of the tobacco product 40 are simultaneously raised to the atomization temperature and atomized at the same time, ensuring that the inner and outer parts of the tobacco product 40 are heated evenly, ensuring that The smoke has a reasonable concentration and taste, and can prevent burnt smell and toxic gas generated by the tobacco product 40 due to excessive local temperature, and further improve the taste and safety of the smoke. 4The cost of microwave generation is low, and it also eliminates the existence of smoke. It can also avoid the burnt smell and toxic gas produced by smoke, and improve the taste and safety of smoke.
  • the shielding component 200 is disposed on the housing 110 and covers the atomizing cavity 121 , and the shielding component 200 is electrically connected to the metal layer 120 for shielding microwaves and transmitting aerosols.
  • the shielding assembly 200 may include a connector 210 and a metal mesh 220 , the metal mesh 220 is disposed on the connector 210 , and the metal mesh 220 may form a detachable connection relationship with the connector 210 .
  • the connector 210 can be made of metal material, and the connector 210 can be detachably connected to the housing 110.
  • the mounting hole 111 of the housing 110 is provided with an internal thread
  • the connector 210 is provided with an external thread.
  • a threaded connection relationship between the connector 210 and the housing 110 can be achieved.
  • the connector 210 and the housing 110 may also form a snap connection relationship.
  • An air guide hole 211 is formed in the connector 210 , the air guide hole 211 extends in a vertical direction, and the smoke can pass through the air guide hole 211 .
  • the metal mesh 220 includes a first metal mesh 221 and a second metal mesh 222.
  • Both the first metal mesh 221 and the second metal mesh 222 can be made of the same metal material, for example, both are made of stainless steel. According to actual needs, the first metal mesh 221 and the second metal mesh 222 can also be made of different metal materials.
  • Both the first metal mesh 221 and the second metal mesh 222 are electrically connected to the metal layer 120 and are provided with ventilation holes 223 , and the ventilation holes 223 are distributed on the first metal mesh 221 and the second metal mesh 222 at a predetermined density. , the smoke can pass through the ventilation hole 223 .
  • the first metal mesh 221 and the second metal cover the holes of the gas guide 211 at the same time and are arranged at intervals along the extending direction of the holes of the gas guide 211.
  • the second metal mesh 222 is located above the first metal mesh 221, so that the second metal mesh 222
  • the first metal mesh 221 is farther away from the atomization chamber 121 than the first metal mesh 221
  • the first metal mesh 221 covers the atomization chamber 121 .
  • the metal layer 120 Since the metal layer 120 is made of a metal material, the metal layer 120 has a shielding function for the microwaves in the atomizing cavity 121 to prevent the microwaves in the atomizing cavity 121 from leaking out of the metal layer 120 .
  • the first metal mesh 221 covers the atomizing cavity 121 and is electrically connected to the metal layer 120, so that both the first metal mesh 221 and the metal layer 120 form an all-round shielding effect on the atomizing cavity 121 in the three-dimensional space, Effectively prevent the microwaves in the atomizing cavity 121 from leaking out of the casing 110 through the metal layer 120 and the first metal mesh 221, thereby preventing the microwaves leaking outside the casing 110 from radiating to the human body and endangering health, and improving the microwave atomizer 20 And the use safety of the electronic atomization device 10 .
  • the second metal mesh 222 covers the air guide hole 211 and is electrically connected to the metal layer 120 , so that the second metal mesh 222 constitutes another reinforced line of defense against
  • the requirement for microwave leakage in international standards is that the leakage amount is less than 5 mW/cm2.
  • the maximum leakage amount is only 0.32 mW/cm2, which is lower than 15.6 times the international standard.
  • the cigarette holder 320 is arranged on the connector 210 and is located above the second metal mesh 222.
  • the cigarette holder 320 has a certain filtering function for the smoke, that is, the cigarette holder 320 acts as a filter, which can filter the harmful atomization of the smoke and further ensure the smoke. security.
  • the smoke will enter the cigarette holder 320 from the atomizing cavity 121 through the ventilation holes 223 of the first metal mesh 221, the air guide holes 211 and the ventilation holes 223 of the second metal mesh 222 in sequence, so that the user can enter the cigarette holder 320.
  • the smoke in the mouthpiece 320 is drawn.
  • the mouthpiece 320 can form a detachable connection relationship with the connector 210, for example, the two can be connected by screw connection or snap connection, so that the mouthpiece 320 can be quickly installed and removed from the connector 210.
  • the mouthpiece 320 and the connector 210 can also form a non-detachable integral connection relationship.
  • the shielding assembly 200 is installed on the housing 110, and then the cigarette holder 320 is installed on the connecting member 210, so that the user can use the cigarette holder 320 to atomize the smoke generated by the tobacco product 40. suction.
  • the entire shielding assembly 200 can be unloaded from the housing 110, and then tobacco is reloaded into the atomizing chamber 121 for smoking again.
  • the number of transmission channels 124 is not limited.
  • the number of transmission channels 124 may be two, and the two transmission channels 124 are respectively denoted as the first transmission channel 125 and the second transmission channel 126 .
  • the metal layer 120 has an inner peripheral surface 122 defining the boundary of the atomizing cavity 121 and an inner bottom wall surface 123 .
  • Both the first transmission channel 125 and the second transmission channel 126 have through openings on the inner peripheral surface 122, the through opening of the first transmission channel 125 is denoted as the first through opening 125a, and the through opening of the second transmission channel 126 is denoted as the first through opening 125a The second through-hole 126a.
  • the first through opening 125a and the second through opening 126a are set at intervals in the circumferential direction of the atomizing cavity 121 by a set angle, and the value range of the set angle can be 90° to 180°, for example, the specific value of the set angle can be 90°, 100°, 145° or 180°, etc.
  • the first through opening 125a is located at the leftmost end of the atomizing cavity 121
  • the set angle is 90°
  • the second through opening 126a is located at the most front or rearmost end of the atomizing cavity 121.
  • the set angle is 180° as shown in FIG. 1
  • the second through opening 126a is located at the far right end of the atomizing cavity 121 .
  • the connection between the centers of the first through opening 125a and the center of the second through opening 126a is The line may intersect the central axis of the atomization chamber 121 .
  • the microwaves from the first transmission channel 125 and the second transmission channel can basically cover the entire circumference in the circumferential direction.
  • the tobacco product 40 ensures that the microwave energy emitted into the atomizing cavity 121 uniformly covers the tobacco product 40 in the circumferential direction as shown in FIG. 40. Burning phenomenon occurs due to local high temperature, which will eventually eliminate the impact of burnt smell and toxic gas on smoke taste and human health.
  • the number of the transmission channels 124 can also be three, that is, a third transmission channel 127 is added on the basis of the first transmission channel 125 and the second transmission channel 126.
  • the atomizing chamber 121 is in communication. Since the microwaves from the first transmission channel 125 and the second transmission channel 126 can cover the sides of the tobacco product 40, and the microwaves from the third transmission channel 127 can cover the bottom of the tobacco product 40, the atomization is further improved The uniformity of microwave coverage on the tobacco product 40 within the cavity 121 .
  • the number of transmission channels 124 may be more than three.
  • the number of microwave generating units 310 may be equal to the number of transmission channels 124 . At this time, different microwave generating units 310 transmit microwaves into the atomizing cavity 121 through different transmission channels 124 . In short, microwaves The generating unit 310 and the transmission channel 124 form a "one-to-one" matching relationship. The number of microwave generating units 310 may also be smaller than the number of transmission channels 124. In this case, the same microwave generating unit 310 can simultaneously transmit microwaves into the atomizing cavity 121 through at least two transmission channels 124. In short, the microwave generating unit 310 A "one-to-many" matching relationship can be formed with the transmission channel 124 .
  • the microwave energy delivered to the atomizing cavity 121 in a unit time is larger, so that the amount of smoke generated by the atomization of the tobacco product 40 in a unit time is larger, which can satisfy the user's requirement for a large amount of smoke need.
  • the microwave atomizer 20 may further include three different boosting and decreasing circuits to meet the energy supply requirements of each microwave generating unit 310 .

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Abstract

一种烟草制品及其制备方法，该烟草制品(40)在微波条件下可以生成气溶胶，该烟草制品(40)包括烟草(410)、气溶胶形成剂(420)和功能粒子(430)，功能粒子(430)能够吸收微波，并能够将吸收的微波转换为热能后传递给烟草(410)和气溶胶形成剂(420)。该烟草制品(40)的气溶胶生成速度较快。

Description

烟草制品及其制备方法 技术领域
本发明涉及烟草制品技术领域，特别是涉及一种烟草制品及其制备方法。
背景技术
加热不燃烧烟具主要是在200℃～400℃的条件下低温烘烤含有烟草的烟草制品而使之产生气溶胶的烟具。加热不燃烧烟具不直接燃烧烟草制品，而是通过加热烟草制品释放气溶胶，减少了烟草制品因高温燃烧裂解而产生的有害成分。
目前，加热不燃烧烟具主要通过发热体(例如加热片或加热棒)与以烟末、烟梗、碎烟片等在卷烟过程中的废弃烟草物质为原料制成的烟草制品配合使用。然而，目前的烟草制品在使用时，产生气溶胶的速度较慢。
发明内容
基于此，有必要提供一种能提高气溶胶生成速度的烟草制品及其制备方法。
一种烟草制品，能够在微波条件下生成气溶胶，所述烟草制品包括烟草、气溶胶形成剂和功能粒子，所述功能粒子能够吸收微波，并能够将吸收的所述微波转换为热能后传递给所述烟草和所述气溶胶形成剂。
一种烟草制品的制备方法，包括以下步骤：
将烟草、气溶胶形成剂和功能粒子混合后，制备烟草制品，所述功能粒子用于吸收微波，并能够将吸收的所述微波转换为热能后传递给所述烟草和所述气溶 胶形成剂。
本申请的一个或多个实施例的细节在下面的附图和描述中提出，本申请的其它特征、目的和优点将从说明书、附图及权利要求书变得明显。
附图说明
图1为一实施例提供的电子雾化装置的平面剖视结构示意图；
图2为图1所示电子雾化装置在装入烟草制品后的平面剖视结构示意图；
图3为一实施例提供的电子雾化装置的局部立体剖视结构示意图；
图4为烟草制品处于雾化腔时的微波分布仿真示意图；
图5为一实施例的烟草制品的局部放大示意图。
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一副或多副附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
具体实施方式
为了便于理解本发明，下面将对本发明进行更全面的描述，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使本发明公开内容更加透彻全面。
需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。当使用术语“垂直的”、“水平的”、“左”、“右”、“上”、“下”、 “内”、“外”、“底部”等指示方位或位置关系时，是为基于附图所示的方位或位置关系，仅为了便于描述，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申请的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。
在本文中，烟丝是指由天然的烟叶制成的丝状物；烟草薄片是指以烟末、烟梗、碎烟片等在卷烟过程中的废弃烟草物质为原料制成的再生烟叶；无特殊说明，微波是指频率为300MHz～3000GHz的电磁波，是无线电波中一个有限频带的简称，即波长在0.1毫米～1米之间的电磁波。
本发明一实施方式提供了一种烟草制品，该烟草制品能在微波条件下快速生成气溶胶。具体地，该烟草制品为加热不燃烧烟草制品，在915MHz～30GHz的微波下可以形成气溶胶。该烟草制品包括烟草、气溶胶形成剂和功能粒子，其中，功能粒子能够吸收微波，并将吸收的微波转换为热能传递给热气溶胶形成剂和烟草，同时功能粒子也可以反射微波以使得上述烟草制品中的其他能够吸收微波的组分因吸收微波而被加热，进而以形成气溶胶。
烟草作为上述烟草制品中的必要成分，包括基础烟草。可选地，基础烟草选自烟丝及烟草薄片中的至少一种。在一个可选地具体示例中，基础烟草为烟丝和烟草薄片的混合物。当然，烟丝和烟草薄片的比例可以根据实际需要进行调整。
可选地，上述烟草制品中的烟草还包括香料及无机填料中的至少一种。在 烟草中添加香料，可以丰富烟草制品的味道。在烟草中添加的无机填料对基础烟草有一定的支撑作用，便于塑形。当然，香料及无机填料的种类和用量可以根据实际需求进行选择和调整。
气溶胶形成剂用于形成气溶胶。可选地，气溶胶形成剂中含有丙二醇。当然，气溶胶形成剂在一定程度上粘附于烟草上。进一步地，气溶胶形成剂中含有微波吸收性能良好的物质。微波吸收良好的物质可以通过直接吸收微波而迅速气化，从而产生烟雾，实现加热不燃烧。具体地，微波吸收性能良好的物质对特定波长微波的损耗角正切大于0.1。更进一步地，气溶胶形成剂中微波吸收性能良好的物质的质量百分数为1％～50％。
在含有微波吸收性能良好的物质的气溶胶形成剂中，烟雾主要通过微波吸收性良好的物质的沸腾/蒸发产生，最高温度为微波吸收性良好的物质的沸点，因此可实现自控温，所以不需要控温部件。当然，上述烟草制品吸收微波的能力随着微波吸收性能良好的物质的量的减少而减弱，在微波吸收性能良好的物质释放完全后，上述烟草制品吸收微波的能力大为降低，不能继续有效吸收微波能量从而升温，因此不易出现烧焦等不利现象。并且经过多次试验表明，上述烟草制品的抽吸寿命有一阈值，在此阈值前，烟草制品的口感不错，有效成分充分释放，但超过该阈值后，整个烟草制品寿命到期，有效成分已释放完毕，口感欠佳。因此，可以通过微波吸收性能良好的物质(例如丙二醇)的添加量以及抽吸口数来精确控制上述烟草制品的抽吸寿命。此外。微波加热具备均匀性以及温度梯度为由内向外的特点，不存在如中心加热装置那样的加热烟草不充分的问题。
可选地，气溶胶形成剂中含有丙二醇及丙三醇中的至少一种。进一步地，气溶胶形成剂中含有丙二醇，且丙二醇的质量百分含量为1％～50％。在一个可 选地具体示例中，气溶胶形成剂中的丙二醇的质量百分含量为2％、5％、10％、15％、20％、35％或45％。进一步地，气溶胶形成剂中的丙二醇的质量百分含量为5％～15％。
在一些实施例中，气溶胶形成剂中还含有烟碱类化合物。通过添加烟碱类化合物可以该善由于烟叶质量较差所引起的烟草制品的口味较差的问题。当然通过添加烟碱类化合物也可以改善由于烟叶批次不同而引起的烟草制品的口味不一致的问题。具体地，烟碱类化合物选自尼古丁及尼古丁盐中的至少一种。进一步地，气溶胶形成剂中烟碱类化合物的质量百分含量为0.1％～33％。在一个可选地具体示例中，气溶胶形成剂中烟碱类化合物的质量百分含量为0.1％、2％、8％、10％、15％、20％、25％或33％。当然，在一些实施例中，气溶胶形成剂还可以含有非烟草调味剂。可选地，非烟草调味剂选自醇类调味剂(例如薄荷醇)和醛类调味剂(例如甜瓜醛)中的至少一种。当然，在其他一些实施例中，非烟草调味剂不限于上述，还可以其他可以食用的非烟草调味剂。
上述烟草制品中的功能粒子至少具有如下作用：(1)反射微波，使得上述烟草制品中微波吸收性能良好物质(例如丙二醇、丙三醇等)能接收到更多的微波，从而使得微波吸收性能良好物质能够吸收更多的微波；(2)吸收微波而迅速升温，加热其附近的烟草和气溶胶形成剂。
具体地，功能粒子包括吸波材料，吸波材料的介电损耗角正切或磁滞损耗角正切大于0.1。可选地，吸波材料选自碳化硅、ZnO、碳粉、Fe 2O 3及Fe 3O 4中的至少一种。
在一些实施例中，功能粒子的形状为颗粒状，功能粒子的粒径不超过100μm。可选地，功能粒子的粒径为2.5μm、10μm、15μm、20μm、30μm、40μm、50μm、60μm、70μm、80μm或100μm。进一步地，功能粒子的粒径为2.5μm～100μm。 更进一步地，功能粒子的粒径为10μm～60μm。
在一些实施例中，功能粒子是多孔材料。在另一些实施例中，功能粒子是纤维材料。
在一些实施例中，功能粒子的表面粗糙。将功能粒子的表面粗糙化，可以防止暴沸，利于充分雾化烟草和气溶胶形成剂。在一个可选地具体示例中，功能粒子为碳化硅颗粒。进一步地，功能粒子为具有多孔结构的碳化硅颗粒。可以理解的是，其他一些实施方式中，功能粒子的形状不限于颗粒状，可以是其他形状。例如，丝状等。
在一些实施例中，上述烟草制品为片状、球状或椭球状。当然，在其他实施例中，上述烟草制品的形状无特别限定，还可以是其他可行的形状。
在一些实施例中，以质量份数计，在上述烟草制品中，烟草的份数为40份～98份，气溶胶形成剂的份数为1份～55份，功能粒子的份数为1份～55份。
在一些实施例中，以质量份数计，在上述烟草制品中，烟草的份数为40份～90份，气溶胶形成剂的份数为5份～55份，功能粒子的份数为5份～55份。
在一些实施例中，以质量份数计，在上述烟草制品中，烟草的份数为40份～90份，气溶胶形成剂的份数为5份～55份，功能粒子的份数为15份～45份。
在一些实施例中，以质量份数计，在上述烟草制品中，烟草的份数为60份～90份，气溶胶形成剂的份数为10份～55份，功能粒子的份数为10份～40份。
在一些实施例中，以质量份数计，在上述烟草制品中，烟草的份数为60份～70份，气溶胶形成剂的份数为10份～25份，功能粒子的份数为15份～25份。
上述烟草制品至少具有以下优点：
(1)上述烟草制品包括烟草、气溶胶形成剂和功能粒子，上述烟草制品可以利用915MHz～30GHz的微波而快速生成气溶胶。在1s内即可产生气溶胶，4s 时所产生的气溶胶的烟雾量远大于传统加热不燃烧烟草制品4s时所产生的气溶胶的烟雾量，而且不需要预热，等待20s。
(2)气溶胶生成效率高：气溶胶形成剂中的微波吸收性能良好的物质(例如丙二醇)能够直接吸收微波而气化生成气溶胶，气溶胶的生成效率高。
(3)烟草的利用率高：通过微波加热的均匀性以及温度梯度为由内向外的特点，避免了烟草不充分的问题，提高了烟草的利用率。
(4)后期维护简单：在使用时，由于上述烟草制品利用微波生成气溶胶，不需要中心加热装置，自然地也避免了清洁中心加热装置，后期维护简单。
本发明一实施方式还提供了一种上述烟草制品的制备方法，该制备方法包括以下步骤：
将烟草、气溶胶形成剂和功能粒子混合后，制备烟草制品。
具体地，烟草、气溶胶形成剂和功能粒子的具体组成和用量如上述，此处不再赘述。此外，在一些实施例中，将烟草、气溶胶形成剂和功能粒子混合后，还包括将烟草、气溶胶形成剂和功能粒子形成的混合物进行成型处理。具体地，成型的工艺可以采用本领域常用的成型工艺。
上述烟草制品的制备方法简捷，易于工业化生产。
请同时参阅图1、图2和图3，本发明一实施方式还提供的电子雾化装置10包括微波雾化器20和电源30，微波雾化器20和电源30相互连接，电源30能够通过锂电池对微波雾化器20供电，位于微波雾化器20内的气溶胶生成基质能够在微波的作用下产生热量并雾化形成气溶胶，该气溶胶实质为可供用户抽吸的一种烟雾。微波雾化器20包括壳体100、屏蔽组件200、烟嘴320和微波发生单元310。
在一些实施例中，壳体100包括外壳110和金属层120，金属层120被包覆 在外壳110之内，外壳110上开设有连通外界的安装孔111，金属层120围设形成雾化腔121，该雾化腔121与安装孔111相互连通。例如外壳110可以采用塑胶等非金属材料制成，此时，可以首先在外壳110内开设腔体，该腔体与安装孔111连通，然后该金属层120可以通过电镀的方式附着在该腔体的内壁面上，当金属层120形成后，金属层120将该腔体的剩余部分围设形成上述雾化腔121，雾化腔121的横截面可以圆形、椭圆形或正多边形等。又如外壳110可以采用金属材料制成，该金属材料的材质可以与金属层120的材质完全相同，此时，外壳110和金属层120两者可以一体成型，即整个壳体100全部采用同一金属材料制成。
微波发生单元310设置在外壳110中并位于雾化腔121之外，微波发生单元310可以采用小型化的固态微波半导体芯片单元，如此可以尽可能地减少微波发生单元310的体积，使得微波发生单元310所占用的安装空间减少，从而减少微波雾化器20和整个电子雾化装置10的总体积。金属层120上开设有传输通道124，传输通道124与雾化腔121相互连通，微波发生单元310产生的微波通过该传输通道124进入雾化腔121内。传输通道124的横截面可以为圆形、椭圆形、跑道形或正多边形等。
气溶胶生成基质为固态状的烟草制品40，该烟草制品40收容在雾化腔121内，烟草制品40内包含有吸波材料。当微波发生单元310通过传输通道124向雾化腔121内发射微波时，吸波材料可以吸收雾化腔121内的微波，从而使得吸波材料的偶极分子在微波的作用下产生高频往复振动而形成内摩擦，最终使得烟草制品40在内摩擦力的作用下产生热量，烟草制品40将吸收该热量而雾化形成烟雾。请参阅图5，在一些实施例中，烟草制品40的组成如上文所述，包括烟草410、气溶胶形成剂420及功能粒子430，功能粒子430能够吸收微波， 并能够将吸收的微波转换为热能后传递给烟草410和气溶胶形成剂420。在烟草制品40中，烟草410、气溶胶形成剂420及功能粒子430均匀分散。
假如采用穿刺在烟草制品40中的加热片进行加热，该加热方式至少存在如下缺陷：①加热片的温度控制精度欠佳，当加热片的温度高于烟草制品40的雾化温度时，会使得烟草制品40在较高的温度下产生大量有害物质，从而对人体健康构成危害。②加热片采用热传导的方式对烟草制品40进行加热，当烟草制品40吸收加热片的热量而升温至雾化温度时，该升温过程将持续大约二十秒左右，即用户需要等待至少二十秒才能抽吸烟雾，使得烟草制品40无法在短时间内快速升高至雾化温度而雾化形成烟雾，从而影响整个电子雾化装置10对用户抽吸响应的灵敏度。③由于加热片穿刺在烟草制品40中，烟草制品40的边缘部分相对中心部分更加远离加热片，加热片的热量将从该中心部分向边缘部分传导，该中心部分因较早吸收热量而先达到雾化温度，但边沿部分因较晚吸收热量而后达到雾化温度，使得烟草制品40受热不均而无法保证各部分同时达到雾化温度而雾化形成烟雾，从而影响烟雾的浓度和口感。并且，烟草制品40的中心部分可能因温度过高而烧焦，使得烟雾中产生焦味。④加热片的工艺复杂且良率低，品质难以控制，导致加热片制造成本居高不下。并且，加热片容易折断而造成整个电子雾化装置10失效。再者，加热片在高温下与烟草制品40反应产生烟诟，烟诟在吸收热量后产生焦味和有毒气体，影响烟雾口感并危害人体健康。
而对于上述实施例的微波雾化器20，烟草制品40吸收微波而在分子内摩擦力的作用下才产生热量，如此会至少形成如下有益效果：①微波的能量容易被精准控制，从而使得烟草制品40加热后所形成的温度相对雾化温度的偏差较小，防止烟草制品40中的部分物质在较高的温度下产生化学反应而形成大量有害物 质，避免烟雾携带该有害物质被人体吸收而产生健康危害，确保微波雾化器20和电子雾化装置10的安全性。②鉴于通过分子内摩擦力产生热量，使得烟草制品40能在短时间内迅速升高至雾化温度而雾化形成烟雾，该升温时间极短，大约一秒左右，从而消除因升温时间较长而导致的长时间等待，提高整个电子雾化装置10对用户抽吸响应的灵敏度。③烟草制品40内各个分部的分子同时振动而产生内摩擦力，使得烟草制品40的内外各部分同时升高至雾化温度而同时雾化，保证烟草制品40的的内外各部受热均匀，确保烟雾有合理的浓度和口感，并且能防止烟草制品40因局部温度过高而产生的焦味和有毒气体，进一步提高烟雾的口感和安全性。④微波产生的成本较低，也消除了烟诟的存在，同样能避免烟诟产生的焦味和有毒气体，提高烟雾的口感和安全性。
在一些实施例中，屏蔽组件200设置在外壳110上并封盖雾化腔121，屏蔽组件200与金属层120电性连接以用于屏蔽微波和透过气溶胶。具体而言，屏蔽组件200可以包括连接件210和金属网220，金属网220设置在连接件210上，金属网220可以与连接件210形成可拆卸连接关系。连接件210可以采用金属材料质制成，连接件210可以与外壳110可拆卸连接，例如外壳110的安装孔111内设置有内螺纹，连接件210上设置有外螺纹，当内螺纹和外螺纹相互啮合时，可以实现连接件210与外壳110之间的螺纹连接关系。当然，连接件210和外壳110还可以形成卡扣连接关系。连接件210内开设有导气211孔，导气211孔沿竖直方向延伸，烟雾可以通过该导气211孔。
金属网220包括第一金属网221和第二金属网222，第一金属网221和第二金属网222两者可以相同的金属材料制成，例如两者均采用不锈钢材料制成，当然，根据实际情况的需要，第一金属网221和第二金属网222还可以采用不同的金属材料制成。第一金属网221和第二金属网222两者均跟金属层120电 性连接并均开设有通气孔223，通气孔223以设定密度分布在第一金属网221和第二金属网222上，烟雾可以通过该通气孔223。第一金属网221和第二金属同时封盖该导气211孔并沿导气211孔的延伸方向间隔设置，例如第二金属网222位于第一金属网221的上方，使得第二金属网222相对第一金属网221更加远离雾化腔121，第一金属网221封盖雾化腔121。
鉴于金属层120采用金属材料制成，使得金属层120对雾化腔121内的微波具有屏蔽功能，防止雾化腔121内的微波泄露至金属层120之外。同时，第一金属网221封盖雾化腔121并与金属层120电性连接，使得第一金属网221和金属层120两者对雾化腔121在立体空间内形成全方位的屏蔽作用，有效避免雾化腔121内的微波通过金属层120和第一金属网221泄漏至外壳110之外，从而防止泄漏至外壳110之外的微波对人体构成辐射而危害健康，提高微波雾化器20和电子雾化装置10的使用安全性。并且，第二金属网222封盖导气211孔并与金属层120电性连接，使得第二金属网222构成防止微波泄漏的另一道加强防线，进一步防止微波泄漏。
国际标准对微波泄漏的要求为泄漏量低于5毫瓦/平方厘米，当对上述实施例的微波雾化器20进行试验测试时，其最高泄漏量仅为0.32毫瓦/平方厘米，低于国际标准的15.6倍。
烟嘴320设置在连接件210上并位于第二金属网222的上方，烟嘴320对烟雾具有一定的过滤功能，即烟嘴320起到过滤嘴的作用，可以对烟雾的有害雾化进行过滤，进一步保证烟雾的安全性。当烟草制品40雾化产生烟雾时，烟雾将从雾化腔121依次通过第一金属网221的通气孔223、导气211孔和第二金属网222的通气孔223进入烟嘴320，从而使得用户对烟嘴320中的烟雾进行抽吸。烟嘴320可以与连接件210形成可拆卸连接关系，例如两者可以螺纹连接 或卡扣连接，如此可以使得烟嘴320从连接件210上进行快速的安装和拆卸。当然，烟嘴320与连接件210也可以形成不可拆卸的一体连接关系。
当将烟草制品40装入雾化腔121后，将屏蔽组件200安装外壳110上，再将烟嘴320安装在连接件210上，如此可以使得用户通过烟嘴320对烟草制品40雾化产生的烟雾进行抽吸。当雾化腔121中的烟草制品40抽吸完毕后，可以将整个屏蔽组件200从外壳110上卸载，然后于雾化腔121中重新装入烟草以便再次抽吸。
在一些实施例中，传输通道124的数量不限，例如，传输通道124的数量可以为两个，两个传输通道124分别记为第一传输通道125和第二传输通道126。金属层120具有界定雾化腔121边界的内侧周面122和内底壁面123，该内底壁面123与内侧周面122远离屏蔽组件200的一端连接。第一传输通道125和第二传输通道126两者在内侧周面122上均存在贯穿口，第一传输通道125的贯穿口记为第一贯穿口125a，第二传输通道126的贯穿口记为第二贯穿口126a。第一贯穿口125a和第二贯穿口126a在雾化腔121的周向上间隔设定角度设置，该设定角度的取值范围可以为90°至180°，例如设定角度的具体取值可以为90°、100°、145°或180°等。通俗而言，在第一贯穿口125a位于雾化腔121的最左端的情况下，当设定角度为90°时，第二贯穿口126a位于雾化腔121的最前端或最后端。当设定角度为如图1所示的180°时，第二贯穿口126a位于雾化腔121的最右端，此时，第一贯穿口125a和第二贯穿口126a两者中心之间的连线可以与雾化腔121的中心轴线相交。
通过将第一贯穿口125a和第二贯穿口126a在雾化腔121的周向上间隔设定角度设置，可以使得来自第一传输通道125和第二传输通中的微波在周向上基本能够覆盖整个烟草制品40，确保发射至雾化腔121内的微波能如图4所示在 周向上均匀覆盖烟草制品40，防止烟草制品40的部分区域因微波覆盖能量较大而温度较高，避免烟草制品40因局部高温出现烧焦现象，最终消除焦味、有毒气体对烟雾口感和人体健康造成的影响。
传输通道124的数量还可以为三个，即在第一传输通道125和第二传输通道126的基础上再增加一个第三传输通道127，该第三传输通道127贯穿上述内底壁面123而与雾化腔121连通。由于来自第一传输通道125和第二传输通道126中的微波可以覆盖烟草制品40的侧部，而来自该第三传输通道127中的微波则可覆盖烟草制品40的底部，从而进一步提高雾化腔121内的微波在烟草制品40上覆盖的均匀性。当然，根据实际情况的需要，传输通道124的数量还可以为三个以上。
在一些实施例中，微波发生单元310的数量可以等于传输通道124的数量，此时，不同的微波发生单元310通过不同的传输通道124向雾化腔121内发射微波，简而言之，微波发生单元310与传输通道124形成“一对一”的匹配关系。微波发生单元310的数量也可以小于传输通道124的数量，此时，同一微波发生单元310能够同时通过至少两个传输通道124向雾化腔121内发射微波，简而言之，微波发生单元310与传输通道124可以形成“一对多”的匹配关系。当微波发生单元310的数量增大多时，单位时间内向雾化腔121输送的微波能量较大，使得单位时间内烟草制品40雾化产生的烟雾量较大，如此可以满足用户对大烟雾量的需求。
微波雾化器20还可以还包括三路不同的升压与降压电路，以满足各个微波发生单元310对能量的供应需求。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技 术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (14)

  1. 一种烟草制品，能够在微波条件下生成气溶胶，其特征在于，所述烟草制品包括烟草、气溶胶形成剂和功能粒子，所述功能粒子能够吸收微波，并能够将吸收的所述微波转换为热能后传递给所述烟草和所述气溶胶形成剂。
  2. 根据权利要求1所述的烟草制品，其特征在于，以质量份数计，所述烟草的份数为40份～98份，所述气溶胶形成剂的份数为1份～55份，所述功能粒子的份数为1份～55份。
  3. 根据权利要求1所述的烟草制品，其特征在于，以质量份数计，所述烟草的份数为40份～90份，所述气溶胶形成剂的份数为5份～55份，所述功能粒子的份数为5份～55份。
  4. 根据权利要求1所述的烟草制品，其特征在于，所述功能粒子包括吸波材料，所述吸波材料选自碳化硅、ZnO、碳、Fe 2O 3及Fe 3O 4中的至少一种。
  5. 根据权利要求4所述的烟草制品，其特征在于，所述功能粒子是多孔材料。
  6. 根据权利要求4所述的烟草制品，其特征在于，所述功能粒子是纤维材料。
  7. 根据权利要求1～6任一项所述的烟草制品，其特征在于，所述功能粒子的粒径不超过100μm。
  8. 根据权利要求7所述的烟草制品，其特征在于，所述功能粒子的粒径为2.5μm～100μm。
  9. 根据权利要求8所述的烟草制品，其特征在于，所述功能粒子的粒径为10μm～60μm。
  10. 根据权利要求6所述的烟草制品，其特征在于，所述气溶胶形成剂中含有丙二醇。
  11. 根据权利要求10所述的烟草制品，其特征在于，在所述气溶胶形成剂中， 丙二醇的质量百分含量为1％～50％。
  12. 根据权利要求1～5及7～9中任一项所述的烟草制品，其特征在于，所述气溶胶形成剂中还含有烟碱类化合物，所述烟碱类化合物选自尼古丁及尼古丁盐中的至少一种。
  13. 根据权利要求12所述的烟草制品，其特征在于，所述气溶胶形成剂中所述烟碱类化合物的质量百分含量为0.1％～33％。
  14. 一种烟草制品的制备方法，其特征在于，包括以下步骤：
    将烟草、气溶胶形成剂和功能粒子混合后，制备烟草制品，所述功能粒子用于吸收微波，并能够将吸收的所述微波转换为热能后传递给所述烟草和所述气溶胶形成剂。
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