WO2023125568A1

WO2023125568A1 - Aerosol producing product, preparation method therefor, and aerosol producing system

Info

Publication number: WO2023125568A1
Application number: PCT/CN2022/142490
Authority: WO
Inventors: 柳胜耀; 徐中立; 李永海
Original assignee: 深圳市合元科技有限公司
Priority date: 2021-12-28
Filing date: 2022-12-27
Publication date: 2023-07-06
Also published as: KR20240118907A; CN116349928A

Abstract

Provided in the present application are an aerosol producing product, a preparation method therefor and an aerosol producing system. The aerosol producing product comprises an external wrapper, and an aerosol forming substrate and an infrared absorption material which are limited in the external wrapper. The infrared absorption material is configured to absorb infrared rays used for radiation heating of the aerosol forming substrate; and the wavelength range of the absorption peak of the infrared absorption material at least partially coincides with the wavelength range of the absorption peak of moisture in the aerosol forming substrate. When the aerosol producing product is heated, the infrared absorption material absorbs the infrared rays used for radiation heating of the aerosol forming substrate. Compared with a conventional heat-not-burn product, the aerosol producing product has lowered aerosol temperature, especially lowered aerosol temperature of first vaping, and has an increased change rate of the TPM value, thus improving the vaping experience of a user. Meanwhile, after the temperature of the infrared absorption material rises, the infrared absorption material can also heat and atomize the aerosol forming substrate, thus improving the heating efficiency of the product to a certain extent.

Description

Aerosol generating product and its preparation method, aerosol generating system

Cross References to Related Applications

This application claims the priority of the Chinese patent application filed on December 28, 2021 with the application number 202111621279.1 entitled "Aerosol-generating articles and their preparation method, and aerosol-generating system" filed with the China Patent Office, the entire contents of which are incorporated by reference incorporated in this application.

technical field

The embodiments of the present application relate to the technical field of products, in particular to an aerosol generating product, a preparation method thereof, and an aerosol generating system.

Background technique

Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning smoking products by making products that release compounds without burning them.

An example of such a product is a heating device, which releases the compound by heating rather than burning the smokeable material in the article. For example, the smokeable material may be tobacco or other non-tobacco products, which may or may not contain nicotine. As another example, there are heating devices that heat an article by means of infrared radiation to release a compound to form an aerosol.

Due to the strong penetrability of infrared rays, it can penetrate the periphery of the product and enter the interior, so that the heating inside and outside of the product is relatively uniform. The disadvantage is that this kind of uniform heating will cause most of the water in the product to be heated and evaporate, and the water vapor with higher heat will make the smoker easily feel burning pain when smoking, especially at the first puff. feel more pronounced.

application content

In order to solve the problem that existing products tend to cause burning pain to smokers when they are heated by infrared radiation, the embodiments of the present application provide an aerosol generating product, a preparation method thereof, and an aerosol generating system.

As used herein, the term 'aerosol-forming substrate' is used to describe a substrate which, when heated, releases volatile compounds which form an aerosol. The aerosol generated by the aerosol-forming substrate of the aerosol-generating articles described herein may or may not be visible, and may include vapors (e.g., fine particles of substances that are in a gaseous state, that are Usually liquid or solid) and liquid droplets of gases and condensed vapors.

As used herein, the terms 'upstream' and 'downstream' are used to describe the relative position of an element, or part of an element, of an aerosol-generating article with respect to the direction in which a user draws on the aerosol-generating article during its use.

As used herein, the term 'mass fraction' refers to the percentage by mass of a substance in the total mass of a mixture.

As used herein, the term 'TPM (Total Particulate Matter)' means total particulate matter.

Aerosol-generating articles comprise two ends: a proximal end and a distal end, through which aerosol exits the aerosol-generating article and is delivered to a user. In use, the user may draw on the proximal end to inhale the aerosol generated by the aerosol-generating article. In use, the proximal end may also be referred to as the downstream end, and is downstream of the distal end. The distal end may also be referred to as the upstream end, and is upstream of the proximal end.

As used herein, the term 'cooling element' is used to describe an element having a relatively large surface area and low resistance to draw. In use, an aerosol formed from volatile compounds released from the aerosol-forming substrate passes through and is cooled by the cooling element before being inhaled by a user. In contrast to high-draw-resistance filter nozzles and other mouthpieces, the cooling element has a low-draw-resistance.

Preferably, the aerosol-generating article is a smoking article that generates an aerosol that is inhalable directly into the lungs of the user through the mouth of the user. More preferably, the smoking article produces a nicotine-containing aerosol which is inhalable directly into the lungs of the user through the mouth of the user.

In a preferred embodiment, the aerosol-forming substrate is arranged at the upstream end of the aerosol-generating article.

In one embodiment, an aerosol-generating article for use with an aerosol-generating device, comprising an outer wrapper, and an aerosol-forming substrate and infrared absorbing material confined within said outer wrapper;

the aerosol-forming substrate is configured to generate an aerosol for inhalation when heated;

the infrared absorbing material is configured to absorb infrared light for radiative heating of the aerosol-forming substrate;

Wherein, the wavelength range of the absorption peak of the infrared absorbing material at least partially coincides with the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate.

In a preferred embodiment, the wavelength range of the absorption peak of the infrared absorbing material is within the wavelength range of the absorption peak of moisture in the aerosol-forming substrate; or,

the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate is within the wavelength range of the absorption peak of the infrared absorbing material; or,

The wavelength range of the absorption peak of the infrared absorbing material partially coincides with the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate; or,

The wavelength range of the absorption peak of the infrared absorbing material is exactly the same as the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate.

In a preferred embodiment, the infrared absorbing material is in at least one of the following shapes: powder, granule, pellet, chip, strand, ribbon or sheet.

In a preferred embodiment, said infrared absorbing material is disposed between said aerosol-forming substrate and said outer wrap; alternatively, said infrared absorbing material is disposed within said aerosol-forming substrate.

Wherein, the infrared absorbing material is disposed in the aerosol-forming substrate, including the case where the infrared-absorbing material is mixed with the aerosol-forming substrate.

In a preferred embodiment, the infrared absorbing material is bonded to a part of the aerosol-forming substrate; wherein, this part of the aerosol-forming substrate is disposed close to the downstream end of the aerosol-forming substrate.

Wherein, the infrared absorbing material is combined on part of the aerosol forming substrate, including that the infrared absorbing material is arranged between a part of the aerosol forming substrate and the outer wrapper, and the infrared absorbing material is arranged on a part of the aerosol forming substrate. The aerosol-forming matrix and the like.

Wherein, part of the aerosol-forming substrate is disposed close to the downstream end of the aerosol-forming substrate, including the case where part of the aerosol-forming substrate forms the downstream end of the aerosol-forming substrate.

In a preferred embodiment, the infrared absorbing material includes at least one of metals, inorganic non-metals, organics, and superabsorbing materials.

In a preferred embodiment, based on the total mass of the aerosol-forming substrate and the infrared absorbing material, the mass fraction of the infrared absorbing material is between 2% and 30%; preferably, between 2% and 25%. ; More preferably, between 2% and 20%; More preferably, between 2% and 15%; More preferably, between 5% and 15%.

In a preferred embodiment, further comprising a suction nozzle confined within said outer wrapper, said suction nozzle being arranged downstream of said aerosol-forming substrate.

In a preferred embodiment, further comprising a cooling element confined within said outer wrapper, said cooling element being disposed between said aerosol-forming substrate and said mouthpiece.

It should be noted that, in other examples, the suction nozzle, the cooling element, and the aerosol-forming substrate may be bounded by different outer wrappers. For example, one outer wrapper confines the aerosol-forming substrate and another outer wrapper confines the mouthpiece and cooling element, the two outer wrappers may be of the same or different materials.

An embodiment of the present application also provides an aerosol-generating article, including an outer wrapper, and an aerosol-forming substrate and an infrared-absorbing material confined within the outer wrapper;

Wherein, the wavelength range of the absorption peak of the infrared absorbing material is between 3 μm and 5 μm.

An embodiment of the present application also proposes a method for preparing an aerosol-generating product, the method comprising:

preparing an aerosol-forming substrate;

Preparation of infrared absorbing materials;

After mixing the aerosol-forming substrate and the infrared-absorbing material, the aerosol-generating product is prepared by conventional product technology.

It should be noted that "mixing" includes the pulverized mixing of the aerosol-forming matrix and the infrared absorbing material, for example: (powder, granule, pellet, fragment) aerosol-forming matrix and (powder, Mixture of infrared absorbing materials in the form of granules, pellets, and fragments; also includes the mixture of the aerosol-forming substrate and the layered form of the infrared absorbing materials, for example: (wire strip, strip or sheet) gas The mist forms a laminate of the substrate and the infrared absorbing material (in the form of threads, strips or sheets).

Yet another embodiment of the present application also proposes an aerosol generating system, including an aerosol generating device and the aforementioned aerosol generating product, the aerosol generating device is configured to radiate infrared rays to heat the aerosol generating product to generate aerosol.

When the above aerosol-generating products are heated, the infrared rays used to radiate and heat the aerosol-forming substrate are absorbed by the infrared absorbing material. Compared with conventional heat-not-burn products, the temperature of the aerosol is reduced, especially the first puff. In addition, the rate of change of the TPM value has been increased, thereby improving the user's smoking experience; at the same time, after the temperature of the infrared absorbing material rises, it can be heated together and atomized to form a matrix, which improves to a certain extent Product heating efficiency.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute a limitation to the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the drawings are not limited to scale.

Figure 1 is a schematic diagram of an aerosol-generating product provided by an embodiment of the present application;

Fig. 2 is a schematic diagram of the test results of the aerosol temperature of a conventional aerosol-generating product;

Fig. 3 is a schematic diagram of the test results of the aerosol temperature of the aerosol-generating product prepared in one embodiment;

Fig. 4 is a schematic diagram of the test results of the aerosol temperature of the aerosol-generating product prepared in another embodiment;

Fig. 5 is a schematic diagram of an aerosol generating system proposed in an embodiment of the present application.

Detailed ways

In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

The present application proposes an aerosol-generating article for use with an aerosol-generating device, the aerosol-generating article comprising an aerosol-forming substrate which, when heated by a heating element inside the aerosol-generating device, serves to generate Inhalable mist.

Among them, based on the convenience of general user's inhalation and use, the overall appearance of the aerosol-generating product has a vertically elongated cylindrical structure. In one embodiment of the application, see Figure 1, the aerosol-generating article comprises three elements arranged in a coaxial arrangement:

An aerosol-forming substrate 10, a cooling element 20, and a mouthpiece 30; these three elements are arranged sequentially and are bounded by an outer wrapper 40 to form an aerosol-generating article.

Further according to FIG. 1, the aerosol-generating article has an opposite proximal end 41 and a distal end 42. During use, the user inserts the proximal end 41 into the mouth for suction, and the distal end 42 is arranged between the aerosol-generating article and the distal end 42. The proximal end 41 is at the opposite end.

In use, air passes from the distal end 42 through the aerosol-generating article to the proximal end 41 . The distal end 42 of the aerosol-generating article may also be described as the upstream end of the aerosol-generating article, and the proximal end 41 of the aerosol-generating article may also be described as the downstream end of the aerosol-generating article. The elements of the aerosol-generating article disposed between the proximal end 41 and the distal end 42 may be described as upstream of the proximal end 41 , or alternatively downstream of the distal end 42 .

The appearance of the aerosol-generating article can mimic that of a conventional smokeable cigarette. The aerosol-generating article may have an outer diameter of between approximately 5 mm and 12 mm, such as between approximately 6 mm and 8 mm.

The overall length of the aerosol-generating article is preferably at least about 35 millimeters. More preferably, the aerosol-generating article has an overall length of at least about 40 millimeters. Even more preferably, the aerosol-generating article has an overall length of at least about 45 millimeters. Additionally or alternatively, the overall length of the aerosol-generating article is preferably less than about 80 millimeters. More preferably, the overall length of the aerosol-generating article is less than about 75 millimeters. Even more preferably, the total length of the aerosol-generating article is less than about 70 millimeters.

In preferred embodiments, the aerosol-generating article has an overall length of from about 35 mm to about 80 mm, more preferably from about 40 mm to about 75 mm, even more preferably from about 45 mm to about 70 mm.

The aerosol-forming substrate 10 is disposed at the distal end 42 of the aerosol-generating article.

The aerosol-forming substrate 10 may comprise nicotine. The nicotine-containing aerosol-forming substrate 10 may comprise a nicotine salt substrate. The aerosol-forming substrate 10 may comprise a plant-based material. The aerosol-forming substrate 10 preferably comprises a tobacco-containing material. The aerosol-forming substrate 10 may comprise a homogenized tobacco material, which may be formed by agglomerating particulate tobacco. Alternatively or additionally, the aerosol-forming substrate 10 may comprise a tobacco-free material. The aerosol-forming substrate 10 may comprise a homogenized plant-based material.

The aerosol-forming substrate 10 may comprise, for example, one or more of the following forms: powder, granules, pellets, chips, strands, strips or sheets. The aerosol-forming substrate 10 may comprise one or more of the following materials: tobacco leaf, tobacco vein segments, reconstituted tobacco, homogenized tobacco, extruded tobacco, tobacco pulp, cast leaf tobacco, and expanded tobacco.

The aerosol-forming substrate 10 may comprise at least one aerosol-forming agent. Aerosol-forming agent is used to describe any suitable known compound or mixture of compounds which, in use, promotes the formation of Thermal degradation at temperature. Suitable aerosol formers are known in the art and include, but are not limited to: polyols such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerin; esters of polyols such as glycerol mono, di- or triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecenoate.

The aerosol-forming substrate may comprise any suitable amount of an aerosol-forming agent. For example, the amount of aerosol-forming agent may be equal to or greater than 5% by dry weight of the aerosol-forming substrate, and preferably greater than 30% by weight by dry weight. The aerosol former may comprise less than about 95% by dry weight. Preferably, the aerosol former is present in an amount up to about 55%.

The aerosol-forming substrate 10 may also contain tobacco or tobacco-free volatile flavoring compounds that are released upon heating of the aerosol-forming substrate 10 . The aerosol-forming substrate 10 may also comprise one or more capsules comprising, for example, additional tobacco volatile flavoring compounds or non-tobacco volatile flavoring compounds, and such capsules are formed on the aerosol-forming substrate 10. May melt during heating.

The aerosol-forming substrate 10 may be provided on or embedded in a thermally stable carrier. As used herein, the term "thermally stable carrier" means a material that does not substantially degrade at temperatures to which aerosol-forming substrate 10 is typically heated (eg, from about 150°C to about 300°C). The carrier may take the form of powder, granules, pellets, chips, strands, ribbons or sheets. The aerosol-forming substrate 10 may be deposited on the surface of the carrier in the form of, for example, a sheet, foam, glue or paste. The aerosol-forming substrate 10 may be deposited over the entire surface of the carrier, or alternatively, may be deposited in a pattern so as to provide non-uniform flavor delivery during use.

The cooling element 20 is arranged immediately downstream of the aerosol-forming substrate 10 and adjoins the aerosol-forming substrate 10 . In use, after the aerosol-forming substrate 10 is heated, the volatile substances released pass along the cooling element 20 toward the proximal end 41 of the aerosol-generating article, and the volatile substances can cool down in the cooling element 20 to form Inhaled mist. In the preferred embodiment shown in FIG. 1 , the cooling element 20 comprises a cavity extending along the length of the cooling element 20 . Through the above axially extending cavity, the air flow through the cooling element 20 is in the longitudinal direction without considerable radial deviation. The cooling element 20 can cool the temperature of the aerosol stream drawn through the cooling element 20 by means of heat transfer. Components of the aerosol will interact with the space within the cooling element 20 and lose thermal energy.

In some embodiments, the temperature of the aerosol stream may decrease by more than 10 degrees Celsius as it is drawn through the cooling element 20 . In some embodiments, the temperature of the aerosol stream may decrease by more than 25 degrees Celsius or by more than 30 degrees Celsius as it is drawn through the cooling element 20 .

The suction nozzle 30 is arranged immediately downstream of the cooling element 20 and adjoins the cooling element 20 . In the embodiment shown in Figure 1, the mouthpiece 30 may be a conventional cellulose acetate or polypropylene tow filter.

To assemble the aerosol-generating article, the three components described above are aligned and tightly wrapped within the outer wrapper 40 . In the embodiment shown in Figure 1, the outer wrapper 40 may be conventional cigarette paper.

The aerosol-generating article shown in Figure 1 is designed to be engaged with an aerosol-generating device comprising a heating element for inhalation by a user. In use, the heating element of the aerosol-generating device heats the aerosol-forming substrate 10 of the aerosol-generating article to a temperature sufficient to generate an aerosol that is drawn downstream through the aerosol-generating article and inhaled by the user. .

An embodiment of the present application also proposes an infrared absorbing material configured to absorb infrared rays that radiate to heat the aerosol-forming substrate 10 . In a preferred implementation, the absorption peak of the infrared absorbing material is correlated with the absorption peak of the moisture in the aerosol-forming substrate. In this way, the infrared absorbing material absorbs the infrared rays that radiate and heat the aerosol to form the substrate 10, so that the evaporated and atomized water is reduced in a certain proportion, and the water vapor with high heat content is avoided to cause the smoker to have a burning sensation when inhaling, especially It is to reduce the temperature of the first puff of aerosol, which improves the user's inhalation experience; at the same time, after the temperature of the infrared absorbing material rises, it can be heated together and atomized to form the matrix 10, which improves the quality of the product to a certain extent. Heating efficiency.

In one example, the wavelength range of the absorption peak of the infrared absorbing material at least partially coincides with the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate 10 . Specifically, the wavelength range of the absorption peak of the infrared absorbing material is within the wavelength range of the absorption peak of the moisture in the aerosol forming substrate 10; or, the wavelength range of the absorption peak of the moisture in the aerosol forming substrate 10 is within the wavelength range of the absorption peak of the infrared absorbing material. within the wavelength range of the peak; or, the wavelength range of the absorption peak of the infrared absorbing material partially overlaps with the wavelength range of the absorption peak of the moisture in the aerosol forming substrate 10; or, the wavelength range of the absorption peak of the infrared absorbing material is in the aerosol formation The wavelength ranges of the absorption peaks of water in the matrix 10 are exactly the same.

In an example, the wavelength range of the absorption peak of the infrared absorbing material is between 3 μm˜5 μm.

In an example, the infrared absorbing material is in at least one of the following forms: powder, granules, pellets, chips, strands, ribbons, or sheets. The infrared absorbing material can be arranged between the aerosol-forming substrate 10 and the outer wrapping member 40, for example, a sheet-shaped infrared-absorbing material is sandwiched between the aerosol-forming substrate 10 and the outer wrapping member 40; Within the aerosol-forming substrate 10 .

Take the infrared absorbing material as an example in the form of particles, as shown in Figure 1, the numeral 11 in the figure represents the granular aerosol forming matrix, the numeral 12 represents the moisture in the granular aerosol forming matrix, and the numeral 13 represents the granular aerosol Infrared absorbing material; granular infrared absorbing material mixed with a granular aerosol-forming substrate and its moisture. When the product is heated by infrared radiation, the granular infrared-absorbing material and water absorb infrared rays of 3 μm to 5 μm together; in this way, the evaporated and atomized water is reduced in a certain proportion, avoiding the water vapor with high heat and causing the smoker to lose weight during the pumping process. Burning sensation when inhaled, especially lowering the temperature of the first puff of aerosol. At the same time, the temperature of the granular infrared absorbing material rises after absorbing radiant heat, heating and atomizing the adjacent granular aerosol forming substrate, which improves the heating efficiency of the product to a certain extent.

In an example, the infrared absorbing material includes at least one of metals, inorganic non-metals, organics, and superabsorbing materials. For example, metals include but not limited to copper and nickel; inorganic non-metals include but not limited to silicon carbide and graphene; organic substances include but not limited to sucrose and fibers; 5μm infrared.

In one example, based on the total mass of the aerosol-forming substrate 10 and the infrared absorbing material, the mass fraction of the infrared absorbing material is between 2% and 30%; preferably, between 2% and 25%; more preferably, between Between 2% and 20%; more preferably, between 2% and 15%; more preferably, between 5% and 15%.

The above outer wrapper 40 is preferably made of infrared-transmitting material. For example, it is prepared by using inorganic fiber materials, specifically including one or more of hydroxyapatite fibers, silicon carbide fibers, and barium titanate fibers.

The above hydroxyapatite fiber, silicon carbide fiber, and barium titanate fiber are materials with excellent infrared permeability, so that when the aerosol-generating product can be heated by infrared radiation, the outer wrapper 40 generally does not absorb infrared rays , thereby effectively promoting the heating efficiency of the inner aerosol-forming substrate 10 .

Further, in order to facilitate the verification of the feasibility of the aerosol-generating products using the above infrared absorbing materials and the progress of the prepared aerosol-generating products in various performances, the prepared aerosol-generating products are illustrated through specific examples below and description of the test results.

S11. A plant-based material for preparing an aerosol-forming substrate; eg, tobacco material.

S12, preparing an infrared absorbing material.

Silicon carbide material can be used, wherein the mass fraction of silicon carbide material is 10%, and the particle size is 24 mesh.

Graphene material can also be used, wherein the mass fraction of graphene material is 10%.

The steps S11 and S12 can be performed in any order.

S13, after mixing the plant-based material and the infrared absorbing material, it can be prepared by conventional product technology to obtain an aerosol-generating product.

It can be prepared by adopting a granular product technology to obtain a granular aerosol-generating product.

It can also be prepared by conventional reconstituted tobacco leaf product technology (such as papermaking method, dry method, thick pulp method, rolling method, etc.) to obtain reconstituted tobacco leaf-type aerosol products.

The above-mentioned product technology can refer to the existing technology, for example: "Dong Gaofeng, Tian Yongfeng, Shang Shanzhai, etc. Research progress in the production process of reconstituted tobacco leaves for heat-not-burn (HnB) cigarettes [J]. Chinese Journal of Tobacco, 2020, 26(1)", the details will not be repeated here.

The aerosol-generating products prepared in the above examples were tested for the aerosol temperature and the rate of change of the TPM value, and the contents of the tests were compared with conventional heat-not-burn products.

1. Aerosol temperature test

Test purpose: to test the aerosol temperature of the product when inhaled

Test environment: ambient temperature: 25°C, relative humidity: 65RH%.

Test instrument: K-type thermocouple is used for temperature sensor; temperature recorder: GRAPHTEC GL240; smoking machine: self-owned equipment is used.

Test working conditions: smoke machine working condition setting: suction volume 55ml/3s, suction interval: 27s; gas mist temperature collection point setting: K-type thermocouple is arranged at the center of the end face of the product suction nozzle; data recording frequency: 10Hz, that is, record data once every 100ms.

Test steps:

S31, inserting the tested product into the aerosol generating device; wherein, the tested product includes the aerosol generating product prepared in Example 1 and Example 2 and a conventional heat-not-burn product; each test uses the same aerosol generating device. device to ensure that the heating conditions of the products are the same; multiple products of the same type can be tested to ensure the test results;

S32, arrange the K-type thermocouple at the center of the end face of the suction nozzle of the product under test;

S33, connect K-type thermocouple and temperature recorder;

S34, start the aerosol generating device to preheat the product, and at the same time turn on the smoker and record the temperature data;

S35, after the preheating is finished, smoke through the smoke machine and record the temperature data during the smoke.

The tested product is a conventional heat-not-burn product, and its test results can be referred to as shown in Figure 2;

The tested product uses silicon carbide material as the infrared absorbing material, wherein the mass fraction of silicon carbide material is 10%, and the particle size is 24 mesh; the granular aerosol generating product prepared by adopting the granular product process, the test results can refer to Shown in accompanying drawing 3;

The tested product uses graphene material as the infrared absorbing material, and the mass fraction of graphene material is 10%; the reconstituted tobacco leaf-type aerosol product is prepared by the conventional reconstituted tobacco leaf-type product process, and the test results can refer to the accompanying drawings 4.

Wherein, the abscissa in Fig. 2-Fig. 4 represents the time of collection, and the ordinate represents the corresponding temperature, and it can be seen from the test results in Fig. 2-Fig. 4 that in the conventional heat-not-burn products shown in Fig. 2 , the temperature of the first inhaled aerosol is about 55°C, compared with conventional heat-not-burn products, the aerosol generating product shown in Figure 3, the temperature of the first inhaled aerosol is about 50°C, Decrease by about 5°C; for the aerosol-generating product shown in Figure 4, the temperature of the first inhaled aerosol is about 51°C, which is about 4°C lower. Apparently, the problem of burning sensation when users take the first puff is reduced.

2. TPM value change rate test

Test purpose: To test the change rate of TPM value of aerosol product product 1 and aerosol-generating product 2 relative to conventional heat-not-burn products.

Among them, aerosol product product 1 uses silicon carbide material as the infrared absorbing material, wherein the mass fraction of silicon carbide material is 10%, and the particle size is 24 meshes; a granular aerosol generating product prepared by adopting a granular product process; aerosol Product 2 is a reconstituted tobacco leaf-type aerosol product that uses graphene material as an infrared absorbing material, and the mass fraction of graphene material is 10%; it is prepared by a conventional reconstituted tobacco leaf-type product process.

Test steps:

S41, test the mass of conventional heat-not-burn products, aerosol-generating product 1 and aerosol product 2 before and after smoking, and calculate the weight loss value, as shown in the following table:

S42, according to the TPM value of the conventional heat-not-burn product and the aerosol-generating product 1, calculate the rate of change of the TPM value of the aerosol-generating product 1, as shown in the following calculation process:

Similarly, the change rate of the TPM value of the aerosol-generating article 2 is about 6.9%.

From the above test results, it can be seen that, compared with conventional heat-not-burn products, the rate of change of TPM value of aerosol-generating product 1 and aerosol-generating product 2 has been improved, thereby improving the user's smoking experience.

Further, the present application also proposes an aerosol generating system comprising the above aerosol generating product and a heating device, and the structure in one embodiment is shown in FIG. 5 ;

The heating device 200 includes a heating element 210;

Wherein, the heating element 210 is in the shape of a tube, at least a part of which is configured to receive the chamber of the aerosol generating product 100, and the heating element 210 radiates infrared rays to the aerosol generating product 100 to further heat the aerosol generating product 100. heating. For the aerosol-generating article 100, reference may be made to the aforementioned content, and details are not repeated here.

When the above infrared radiation heating element 210 is used for heating, the infrared absorbing material in the gas mist generating product 100 absorbs the infrared rays of radiation heating the gas mist forming substrate, so that the evaporated and atomized water is reduced in a certain proportion, avoiding high heat content The water vapor in the smoke makes it easy for the smoker to have a burning sensation when smoking, especially reducing the temperature of the first puff of the mist, which improves the user's suction experience; at the same time, after the temperature of the infrared absorbing material rises, it can Heating together and atomizing the aerosol to form a matrix improves the heating efficiency of the product to a certain extent.

It should be noted that the preferred embodiments of the application are given in the description of the application and its drawings, but they are not limited to the embodiments described in the description. Further, for those of ordinary skill in the art, they can Improvements or transformations are made according to the above description, and all these improvements and transformations shall fall within the scope of protection of the appended claims of this application.

Claims

An aerosol-generating article comprising an outer wrapper, and an aerosol-forming substrate and an infrared absorbing material confined within said outer wrapper;

the aerosol-forming substrate is configured to generate an aerosol for inhalation when heated;

the infrared absorbing material is configured to absorb infrared light for radiative heating of the aerosol-forming substrate;

Wherein, the wavelength range of the absorption peak of the infrared absorbing material at least partially coincides with the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate.
The aerosol-generating article of claim 1, wherein:

The wavelength range of the absorption peak of the infrared absorbing material is within the wavelength range of the absorption peak of moisture in the aerosol-forming substrate; or,

the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate is within the wavelength range of the absorption peak of the infrared absorbing material; or,

The wavelength range of the absorption peak of the infrared absorbing material partially coincides with the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate; or,

The wavelength range of the absorption peak of the infrared absorbing material is exactly the same as the wavelength range of the absorption peak of the moisture in the aerosol-forming substrate.
The aerosol-generating article of claim 1, wherein said infrared absorbing material is in at least one of the following shapes:

Powder, granules, pellets, flakes, strands, ribbons or flakes.
The aerosol-generating article of claim 1, wherein said infrared absorbing material is disposed between said aerosol-forming substrate and said outer wrap; or, said infrared absorbing material is disposed between said aerosol-generating article. Fog is formed within the matrix.
The aerosol-generating article of claim 1, wherein said infrared absorbing material is bonded to a portion of said aerosol-forming substrate; wherein said portion of said aerosol-forming substrate is adjacent to said aerosol-forming substrate Downstream settings.
The aerosol-generating article according to claim 1, wherein the infrared absorbing material comprises at least one of metals, inorganic non-metals, organic substances, and superabsorbing materials.
The aerosol-generating product according to claim 1, characterized in that, based on the total mass of the aerosol-forming substrate and the infrared-absorbing material, the mass fraction of the infrared-absorbing material is between 2% and 30%; Or, between 2%-25%; or, between 2%-20%; or, between 2%-15%; or, between 5%-15%.
The aerosol-generating article of claim 1, further comprising a mouthpiece confined within said outer wrapper, said mouthpiece being disposed downstream of said aerosol-forming substrate.
The aerosol-generating article of claim 8, further comprising a cooling element confined within said outer wrapper, said cooling element being disposed between said aerosol-generating substrate and said mouthpiece .
An aerosol-generating article comprising an outer wrapper, and an aerosol-forming substrate and an infrared absorbing material confined within said outer wrapper;

the aerosol-forming substrate is configured to generate an aerosol for inhalation when heated;

the infrared absorbing material is configured to absorb infrared light for radiative heating of the aerosol-forming substrate;

Wherein, the wavelength range of the absorption peak of the infrared absorbing material is between 3 μm and 5 μm.
A method for preparing an aerosol-generating product, characterized in that the method comprises:

preparing an aerosol-forming substrate;

Preparation of infrared absorbing materials;

After mixing the aerosol-forming substrate and the infrared-absorbing material, the aerosol-generating product is prepared by conventional product technology.
An aerosol generating system, characterized by comprising an aerosol generating device and the aerosol generating product according to any one of claims 1-10, the aerosol generating device is configured to radiate infrared rays to heat the aerosol generating product To produce aerosol for inhalation.