CN118020991A

CN118020991A - Tobacco matrix, preparation method thereof and cigarette

Info

Publication number: CN118020991A
Application number: CN202211395842.2A
Authority: CN
Inventors: 韩磊; 童福强; 王维维; 胡硕; 刘与铭; 万强; 董睿; 张丽; 马坤
Original assignee: China Tobacco Guizhou Industrial Co Ltd
Current assignee: China Tobacco Guizhou Industrial Co Ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2024-05-14

Abstract

The application discloses a tobacco substrate, a preparation method thereof and a cigarette. The tobacco substrate preparation method comprises the following steps: adding active substances into tobacco raw materials, and storing for a certain time; the tobacco raw materials stored for a certain time are placed in a preset temperature and humidity environment for storage, and then the stored tobacco raw materials are baked; crushing the baked tobacco raw materials to obtain tobacco powder; adding a fumigant, an adhesive and purified water into the tobacco powder, uniformly mixing, granulating through a swinging process after kneading, and obtaining a tobacco matrix through sieving and drying. The method utilizes the fermentation principle to carry out baking treatment, thereby reducing or removing bad smell substances in the tobacco raw materials, and combines a further granulation process and higher-temperature particle drying.

Description

Tobacco matrix, preparation method thereof and cigarette

Technical Field

The application relates to the technical field of tobacco production, in particular to a tobacco matrix, a preparation method thereof and a cigarette.

Background

The heating non-burning cigarette (also called low temperature cigarette) is a novel tobacco product which heats tobacco shreds by a special heating source, and nicotine and aroma substances in the tobacco shreds are volatilized to generate smoke so as to meet the requirements of smokers. The heated cigarette is different from the traditional cigarette, has the characteristic of heating tobacco raw materials instead of burning, and the heating temperature is generally 200-300 ℃, and the cigarettes are in a non-burning state and do not generate flow measurement smoke in the intermittent smoking process, so that harmful components generated by high-temperature burning and pyrolysis of the tobacco can be reduced as much as possible.

The granular heating cigarette is one of the heating non-burning cigarettes, and generally consists of a tobacco substrate section, a cooling section, a hollow section and a filter section which are wrapped by a hard paper tube, wherein the tobacco section is sealed by ventilation paper. Aiming at the existing granular heating cigarettes, a certain proportion of essence and spice are generally added in the granulating stage so as to increase the richness of the smoke aroma and the change of taste. However, the addition of the exogenous essence and spice can influence the penetration of the herbal fragrance of the cigarettes, so that the original fragrance of the cigarettes in the smoke is light, and a certain miscellaneous gas can be brought in, thereby influencing the smoking taste of consumers.

Disclosure of Invention

The method aims at solving the problems that the addition of the exogenous essence and spice in the prior art can influence the penetration of the tobacco herb fragrance, so that the tobacco herb fragrance in the smoke is light and thin, and the sucking taste of consumers is influenced. The embodiment of the application provides a tobacco substrate, a preparation method thereof and a cigarette, which can increase the richness and the taste change of the tobacco substrate on the basis of not adding essence and spice, so that a consumer obtains a more mellow and finer smoking experience.

In a first aspect, embodiments of the present application provide a method for preparing a tobacco substrate, comprising:

Adding active substances into tobacco raw materials, and storing for a certain time;

the tobacco raw materials stored for a certain time are placed in a preset temperature and humidity environment for storage, and then the stored tobacco raw materials are baked;

crushing the baked tobacco raw materials to obtain tobacco powder;

adding a fumigant, an adhesive and purified water into the tobacco powder, uniformly mixing, granulating through a swinging process after kneading, and obtaining a tobacco matrix through sieving and drying.

The method has the advantages that the method can achieve the purposes of removing the foreign flavor in the tobacco matrix under the condition of no addition of exogenous essence and spice, enabling the original flavor of the tobacco to be more fragrant and mellow, and the granular tobacco material has the advantage that compared with the sheet tobacco material, fewer or no addition of exogenous fibers can be adopted, so that the granular tobacco can enable the flavor to be more similar to that of a traditional cigarette.

In one possible implementation of the first aspect described above, the tobacco material comprises one or more of sun-cured tobacco, aromatic tobacco, burley tobacco, and maryland tobacco.

One or more of sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco are adopted as main raw materials of the tobacco matrix, so that the tobacco matrix has the characteristics of aromatic flavor, strong processing resistance and difficult diffusion of the flavor, and the release of the flavor of a certain raw material can be realized by blending various types of tobaccos with different proportions without covering the flavor of other raw materials.

In one possible implementation of the first aspect, the tobacco material is prepared from sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco according to (0-15): (0-15): (0-5): (0-5) and uniformly mixing the components according to the weight ratio.

The tobacco flavor can be enhanced by blending the tobacco materials according to the proportion, the tobacco flavor is not easy to lose due to the outstanding tobacco style, and the blend proportion can further enhance the processing resistance of the tobacco.

In one possible implementation of the first aspect, the active substance includes one or more of white wine, wine and rice wine, and the adding proportion of the active substance accounts for 1wt% to 50wt% of the weight of the tobacco raw material based on the weight.

Specifically, the wine substances are used as active substances, so that the tobacco raw materials can reduce or remove some bad smell substances in the tobacco raw materials through fermentation, and the effects of improving the taste of the tobacco raw materials and reducing oral cavity irritation are achieved. The wine material has high self-safety and strong usability, and can realize tobacco fermentation treatment without adding surfactant. Further, as the fermentation periods of different wines are different, the fermentation degree of the tobacco raw material is different due to the different addition proportion of the same wine material, therefore, according to the characteristics of the tobacco raw material, the application selects proper wine material (such as one or more of white wine, wine and rice wine) as the active material, and selects proper addition proportion of the active material, so that the fermentation of the tobacco raw material achieves a better effect.

In one possible implementation of the first aspect described above, the smoking agent comprises glycerin and propylene glycol, and the mass of glycerin and propylene glycol is 30wt% to 40wt% and 6wt% to 7wt% of the mass of the smoke powder, respectively.

In one possible implementation of the first aspect, the binder includes one or more of invert sugar, starch, dextrin, and carboxymethyl cellulose, and the binder accounts for 0wt% to 50wt% of the mass of the smoke powder.

The sugar is used as the adhesive, so that the sweet feeling and the fluid producing feeling of the tobacco substrate can be improved, and the taste of the tobacco substrate is further enriched.

In a possible implementation of the first aspect, the pure water is added in a proportion of 6wt% to 50wt% of the mass of the tobacco powder.

In one possible implementation of the first aspect, the storing for a certain time after adding the active substance to the tobacco raw material includes:

Adding active substances into tobacco raw materials, and storing in natural environment for 3-4 weeks;

Or alternatively, the first and second heat exchangers may be,

And adding active substances into the tobacco raw material, and storing the tobacco raw material in a simulated environment for 1 to 2 weeks, wherein the temperature and the humidity of the simulated environment are higher than those of the natural environment so as to accelerate the fermentation of the tobacco raw material.

Specifically, the simulated environment can be an environment inside a specific device, such as a constant temperature and humidity box, so as to accelerate fermentation and shorten the fermentation time of the tobacco raw material, thereby improving the preparation efficiency of the tobacco substrate to a certain extent.

In a possible implementation manner of the first aspect, the storing the tobacco raw material stored for a certain period of time in a preset temperature and humidity environment includes:

Placing the tobacco raw material stored for a certain time in an environment with the temperature of 90-120 ℃ and the humidity of 60-100 RH percent, and storing for 10-30 min;

Or, placing the tobacco raw material stored for a certain time in an environment with the temperature of 90-120 ℃ and the humidity of 10-40 RH percent for 30-60 min.

The method comprises the steps of firstly fumigating the tobacco raw material before baking, and returning the tobacco raw material, so that release of the bad smell substances is benefited, and then carrying away the bad smell substances through a subsequent baking process, so that the bad smell substances in the tobacco raw material are further reduced or removed.

In one possible implementation of the first aspect, baking the stored tobacco material includes: and baking the stored tobacco raw material for 30-60 min at 100-120 ℃.

In one possible implementation of the first aspect, when the baked tobacco raw material is crushed, the crushing mesh number is 30-50 mesh, and when the dried and sieved tobacco raw material is granulated, the sieving mesh number is 10-40 mesh, and the particle drying temperature is 80-120 ℃.

In a second aspect, embodiments of the present application provide a tobacco substrate prepared by any of the various possible implementations of the first aspect, the tobacco substrate being in particulate form.

The particulate tobacco material has the advantage over sheet tobacco material in that less or no exogenous fibers may be added, and thus the particulate tobacco can make the aroma more similar to a conventional cigarette.

In one possible implementation of the above second aspect, the tobacco substrate comprises a tobacco component, a smoking agent, a binder; wherein the tobacco component comprises one or more of sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco, the fumigant comprises glycerin and propylene glycol, and the glycerin, the propylene glycol and the adhesive respectively account for 30-40 wt%, 6-7 wt% and 0-50 wt% of the mass of the tobacco powder.

One or more of sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco are adopted as main raw materials of the tobacco matrix, so that the tobacco matrix has the characteristics of aromatic flavor, strong processing resistance and difficult loss of flavor. And by blending various kinds of tobacco with different proportions, the release of the fragrance of other raw materials can be realized without covering up the fragrance characteristics of certain raw materials.

In one possible implementation of the above second aspect, the tobacco component is made up of sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco according to (0-15): (0-15): (0-5): (0-5) and uniformly mixing the components according to the weight ratio.

In one possible implementation of the above second aspect, the binder includes one or more of invert sugar, starch, dextrin, carboxymethyl cellulose.

In a third aspect, embodiments of the present application provide a cigarette for use with a heated non-combustible smoking article, the cigarette comprising a tobacco segment internally filled with any of the various possible implementations of the second aspect.

Detailed Description

The application will be further illustrated with reference to specific examples. It is to be understood that the illustrative embodiments of the present disclosure, including but not limited to tobacco substrate preparation and methods thereof, cigarettes, are described herein in terms of specific embodiments only, and not limitation. Furthermore, only some, but not all, structures or processes related to the present application are shown for convenience of description.

Further advantages and effects of the present application will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present application with specific examples. While the description of the application will be presented in connection with a preferred embodiment, it is not intended that the application be limited to this embodiment. Rather, the purpose of the application described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the application. The following description contains many specific details for the purpose of providing a thorough understanding of the present application. The application may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the application. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

The preparation method of the tobacco matrix according to the embodiment of the application comprises the steps of adding active substances into tobacco raw materials and then storing for a certain time; the tobacco raw materials stored for a certain time are placed in a preset temperature and humidity environment for storage, and then the stored tobacco raw materials are baked; crushing the baked tobacco raw materials to obtain tobacco powder; adding a fumigant, an adhesive and purified water into the tobacco powder, uniformly mixing, granulating through a swinging process after kneading, and obtaining a tobacco matrix through sieving and drying.

In some embodiments of the application, the tobacco material is prepared from sun-cured tobacco, aromatic tobacco, burley tobacco, and maryland tobacco in accordance with (0-15): (0-15): (0-5): (0-5) and uniformly mixing the components according to the weight ratio.

In some embodiments of the application, the active substance comprises one or more of white wine, grape wine and rice wine, and the adding proportion of the active substance accounts for 1-50 wt% of the weight of the tobacco raw material based on the weight.

The tobacco matrix preparation method can be applied to preparing the granular tobacco matrix. According to the application, a certain proportion of alcoholic substances are added in the tobacco shred pretreatment stage, and the tobacco shred pretreatment stage is subjected to fumigation treatment by utilizing a fermentation principle, so that bad smell substances in sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco are reduced or removed, and meanwhile, under the condition that particles at a higher temperature are dried and no exogenous essence or spice is added, the purposes of removing foreign flavor in tobacco particles and enabling the original flavor of tobacco to be more fragrant and mellow are achieved. In addition, in the tobacco matrix prepared by the application, the bioactive substances are high in self safety and strong in usability, and the addition of a surfactant is not needed, so that the intake of harmful substances can be reduced.

Embodiments of the present application will be described in further detail below.

In one embodiment of the application, a tobacco substrate preparation method comprises:

step S1 of primary treatment of raw materials: the tobacco material is stored for a certain period of time after the active substances are added.

Specifically, the tobacco raw material added with the active substances can be stored in natural environment for 3 to 4 weeks for fermentation to reduce or remove the bad smell substances; alternatively, the tobacco material after the addition of the active substance may be stored in a simulated environment for 1 to 2 weeks to accelerate the fermentation process of the tobacco material. Specifically, the temperature and humidity of the simulated environment is higher than that of the natural environment, and the simulated environment can be specific equipment, for example, the tobacco raw material added with the active substances is placed in a constant temperature and humidity box, and the temperature and humidity in the constant temperature and humidity box are properly regulated so as to accelerate the fermentation process.

Optionally, the active substance can comprise one or more of white wine, grape wine and rice wine, and the adding proportion of the active substance accounts for 1-50 wt% of the weight of the tobacco raw material based on the weight.

Further, the tobacco raw materials comprise one or more of sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco, and the tobacco raw materials can be specifically sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco according to the following proportion (0-15): (0-15): (0-5): (0-5) and uniformly mixing the components according to the weight ratio.

Step S2 of raw material secondary treatment: and (3) placing the tobacco raw materials stored for a certain time in a preset temperature and humidity environment for storage, and then baking the stored tobacco raw materials for 30 to 60 minutes at the temperature of 100 to 120 ℃.

Specifically, the preset temperature and humidity environment can be a high-temperature and high-humidity environment (such as the temperature is 90-120 ℃ and the humidity is 60-100 RH%) or a high-temperature and low-humidity environment (such as the temperature is 90-120 ℃ and the humidity is 10-40 RH%). Further, the storage time in these two environments is also different, for example, the tobacco raw material stored for a certain time can be placed in an environment with the temperature of 90 ℃ to 120 ℃ and the humidity of 60RH% to 100RH% and stored for 10min to 30min; or placing the tobacco raw material stored for a certain time in an environment with the temperature of 90-120 ℃ and the humidity of 10-40 RH percent for 30-60 min.

And (3) charging and granulating step S3: crushing the baked tobacco raw materials to obtain tobacco powder, weighing the tobacco powder with a certain mass, and charging. Specifically, the addition includes the addition of a smoke agent, a binder, and purified water. Stirring and mixing uniformly, granulating by a swinging process after kneading, and sieving and drying to obtain the tobacco matrix.

In this step, the fumigant includes glycerin and propylene glycol, and the mass of glycerin and propylene glycol respectively accounts for 30wt% to 40wt% and 6wt% to 7wt% of the mass of the tobacco powder; the adhesive comprises one or more of invert sugar, starch, dextrin and carboxymethyl cellulose, and the adhesive accounts for 0-50 wt% of the mass of the tobacco powder; the adding proportion of the purified water is 6-50 wt% of the mass of the tobacco powder.

In some other embodiments of the present application, the preparation of the particulate heated cigarette may also be accomplished by using a particulate filling apparatus, i.e., the tobacco substrate obtained as described above is filled into a cardboard tube of the particulate heated cigarette by using the particulate filling apparatus, thereby completing the preparation of the tobacco section of the particulate heated cigarette.

The principle of the application is that a certain proportion of wine substances are added in the tobacco shred pretreatment stage, and the fermentation principle is utilized to carry out fumigation treatment, so that bad smell substances in sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco are reduced or removed, and meanwhile, the tobacco is dried by particles at a higher temperature, and under the condition of no exogenous essence or spice, the aim of removing foreign flavor in tobacco particles and enabling the original flavor of the tobacco to be more fragrant and fragrant is achieved. In the application, the bioactive substances are high in self safety and strong in usability, and the addition of the surfactant is not needed, so that the intake of harmful substances can be reduced. In addition, the adhesive can select saccharide substances to increase sweet feeling and fluid production feeling so as to adapt to design requirements of different heating cigarette smoking characteristics.

The effects of the technical scheme of the present application are described in comparison with examples and two comparative examples.

Examples

The method is used for preparing the finished granular cigarette by the following steps:

step 1, fermenting the selected tobacco raw material (Tongren in the sun red 2015 as an example), wherein the fermentation liquor adopts sugar-free pure rice wine, the adding amount is 3wt%, and the fermentation time is 3 weeks.

And 2, fumigating the raw materials obtained by fermentation in a water bath at 100 ℃ for 10 minutes, and then putting the fumigated raw materials into a baking oven at 120 ℃ for baking for 30 minutes.

And 3, crushing the raw materials, namely crushing the dried raw materials, wherein an outlet of a crusher is set to be a 40-mesh screen, and thus crushed tobacco powder is obtained.

Step 4, mixing 40-mesh tobacco powder with a fuming agent, water and invert sugar, wherein the fuming agent is a mixture of glycerol and propylene glycol, the invert sugar is 60-degree invert sugar, and the mixing mass ratio is that of the tobacco powder: glycerol: propylene glycol: invert sugar: water = 27:9:1:1.5:10:.

And 5, carrying out swing granulation on the mixed compound through a wet mixing granulator, wherein an outlet of the granulator is set to be a 20-mesh net, and the obtained wet particles are more than or equal to 20 meshes.

And 6, drying, namely drying the obtained wet particles at 80 ℃ for 30min to obtain the final finished product particles.

And 7, preparing the granular heating cigarettes by using granular filling and wrapping equipment, wherein the granular filling is controlled to be 0.17 g/cigarette.

Comparative example 1

The method of the examples was used to prepare particles for heating cigarettes, with the only differences: and (3) canceling the fermentation process of the step (1), and directly passing the tobacco raw material through the steps (2-7) to obtain the comparison sample (1).

Comparative example 2

The method of the examples was used to prepare particles for heating cigarettes, with the only differences: and (3) eliminating the steps of smoking and baking in the step (2) to obtain the comparative sample (2).

Example heated cigarette sample 1 and comparative example heated cigarette sample 2 were prepared using the particles prepared in example 1 and comparative examples 1,2, respectively, added to the smoke generating section of the heated cigarettes.

The example heated cigarette sample 1 and the comparative example heated cigarette samples 1 and 2 were evaluated for smoking according to the "heated cigarette sensory quality evaluation method" of Guizhou tobacco industry Limited company Standard Q/GZZY J.02.02.02 (JS) 01-2020, and the results are shown in Table 1 below.

Table 1 evaluation results of suction

From table 1 it can be demonstrated that:

1) Compared with the heating cigarette sample 1, the comparative heating cigarette sample 1 has single fragrance, is not rich enough and has poor taste. Therefore, the fragrance richness can be effectively improved, the miscellaneous gas can be reduced, and the pungent feeling and the strength can be reduced through fermentation treatment.

2) Comparative example the heated cigarette sample 2 had poor sensory fragrance transmission and poor mouthfeel compared to the heated cigarette sample 1. Therefore, fragrance can be diffused through the treatment of fumigation and baking, so that miscellaneous gas is reduced, and the pungent feeling and the strength are reduced.

According to the application, the alcoholic substances are added to ferment the tobacco raw materials, and the special treatment is carried out to reduce or remove the bad smell substances in the tobacco shreds, so that the unpleasant smell and the irritation of the final granular product are reduced. The application can also combine different tobacco raw material formulas and processing techniques, and the heating temperature control curve of the matched smoking set of the heating cigarette is adjusted, so that the heating cigarette regularly releases specific aroma at specific time and specific temperature, and the smoking feeling of the cigarette is improved. In addition, in the tobacco matrix prepared by the preparation method of the tobacco matrix, the bioactive substances are high in safety and usability, and the addition of the surfactant is not needed. And the adhesive is sugar substances, so that sweet feeling and salivation feeling are improved, and the design requirements of different heating cigarette smoking characteristics can be met.

Some embodiments of the application also provide a tobacco substrate prepared based on the tobacco substrate preparation method, wherein the tobacco substrate is granular. Compared with sheet-type tobacco materials, the granular tobacco materials can have less or no exogenous fiber added, so that the granular tobacco can make the aroma more similar to the traditional cigarette.

Optionally, the tobacco substrate comprises tobacco components, a smoking agent, a binder; wherein the tobacco component comprises one or more of sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco, the fumigant comprises glycerin and propylene glycol, and the binder comprises one or more of invert sugar, starch, dextrin and carboxymethyl cellulose. And the glycerol, the propylene glycol and the adhesive respectively account for 30 to 40 weight percent, 6 to 7 weight percent and 0 to 50 weight percent of the mass of the smoke powder.

Optionally, the tobacco components are selected from sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco according to the following steps (0-15): (0-15): (0-5): (0-5) and uniformly mixing the components according to the weight ratio.

Some embodiments of the present application also provide a cigarette for use with a heated non-combustible smoking article, the cigarette comprising a tobacco segment, the tobacco segment being internally filled with a particulate tobacco substrate as described above.

In particular, the tobacco rod may comprise a tobacco substrate containing volatile tobacco flavour compounds that are released from the substrate upon heating. The cigarette may comprise a non-tobacco material. The cigarette may further comprise an aerosol former. Examples of suitable aerosol formers are glycerol and propylene glycol.

The tobacco segments in the cigarette may be in loose form or may be provided in a suitable container or cartridge. Optionally, the cigarette may contain additional tobacco or non-tobacco volatile flavour compounds that are released upon heating of the substrate. The cigarettes may also contain capsules, for example, containing additional tobacco or non-tobacco volatile flavour compounds, and such capsules may melt during heating of the solid cigarettes.

The tobacco substrate may also include other additives including, but not limited to, tobacco and non-tobacco fibers, aerosol formers, humectants, plasticizers, flavorants, fillers, aqueous and non-aqueous solvents, and combinations thereof.

Further, in the present application, the cigarette may be used with various types of heating non-combustible smoking articles, such as infrared heating smoking articles, resistance heating smoking articles, electromagnetic heating smoking articles, and the like. That is, the heating elements of the respective heating sections in the heating device may be identical or different in form. The form of the heating element referred to herein includes not only the type of the heating element but also the structure, arrangement position (end heating, internal heating, external heating, etc.) and the like of the heating element. For example, one of the heating portions may be an internal resistance heating (e.g., a heating pin), while the other heating portion may be an external electromagnetic heating (e.g., an electromagnetic heating pipe), although other heating portions may be used, which are not shown here.

Further, the specific structure of each heating portion is not limited in the present application, and may be internal heating (e.g., heating pins, heating sheets, etc.), external heating (e.g., heating pipes, etc.), end heating (e.g., heating plates placed at the ends, etc.), or a mixture of the above.

Further, in the present application, the heating form of the cigarettes in each heating portion is not limited. For example, the heating element in the heating section may be in the form of resistive heating, preferably the electrical heating element comprises a resistive material. Suitable resistive materials include (but are not limited to): semiconductors such as doped ceramics, "conductive" ceramics (e.g., molybdenum disilicide), carbon, graphite, metals, metal alloys, and composites made of ceramic materials and metal materials. Such composites may comprise doped or undoped ceramics. Examples of suitable doped ceramics include doped silicon carbide. Examples of suitable metals include titanium, zirconium, tantalum, and platinum group metals. Examples of suitable metal alloys include stainless steel, constantan (Constantan), nickel-containing alloys, cobalt-containing alloys, chromium-containing alloys, aluminum-containing alloys, titanium-containing alloys, zirconium-containing alloys, hafnium-containing alloys, niobium-containing alloys, molybdenum-containing alloys, tantalum-containing alloys, tungsten-containing alloys, tin-containing alloys, gallium-containing alloys, manganese-containing alloys, and iron-containing alloys, as well as nickel, iron, cobalt-based superalloys, stainless steel, iron-aluminum-based alloys, and iron-manganese-aluminum-based alloys. In the composite material, the resistive material may optionally be embedded in an insulating material, encapsulated by an insulating material or coated by an insulating material or vice versa, depending on the kinetics of energy transfer and the desired external physicochemical properties. The heating element may comprise a metal etched foil that acts as a barrier between two layers of inert material. In that case, the inert material may comprise full polyimide or mica foil. Or the heating element may also be an infrared heating element, a photon source, an induction heating element, or the like.

Further, the heating element may take any suitable form. For example, the electric heating element may take the form of a heating blade. The heating element may take the form of a sleeve or substrate with different conductive portions or a resistive metal tube. If the cigarette is a liquid provided in the container, the container may incorporate a disposable heating element. One or more heated pins or rods traveling through the center of the cigarette may be used. The heating element may be a disc (end) heating element or a combination of a disc heating element and a heating pin or rod. The heating element may comprise a sheet of flexible material arranged to surround or partially surround the cigarette. Other possibilities include heating wires or filaments, such as Ni-Cr, platinum, tungsten or alloy wires, or heating plates. Optionally, the heating element may be deposited in or on a rigid carrier material.

The heating element may comprise a heat sink or reservoir comprising a material that is capable of absorbing and storing heat, and then releasing the heat to the cigarette over time. The heat sink may be formed of any suitable material, such as a suitable metallic or ceramic material. Preferably, the material has a high thermal capacity (sensible heat storage material), or is a material capable of absorbing and subsequently releasing heat through a reversible process (e.g., a high temperature phase change). Suitable heat storage materials include silica gel, alumina, carbon, glass mat, fiberglass, minerals, metals or alloys (such as aluminum, silver or lead), and cellulosic materials (such as paper). Other materials that release heat by reversible phase change include paraffin, sodium acetate, naphthalene, wax, polyethylene oxide, metals, metal salts, eutectic salt mixtures or alloys.

The heat sink or reservoir may be arranged such that it directly contacts the cigarette and may transfer stored heat directly to the substrate. Or the heat stored in the heat sink or heat reservoir may be transferred to the cigarette by means of a heat conductor, such as a metal tube.

The heating element may also heat the cigarette by conduction. The heating element may be at least partially in contact with the substrate or a carrier having the substrate deposited thereon. Heat from the heating element may be conducted to the substrate through the thermally conductive element.

While the application has been described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the application.

Claims

1. A method of making a tobacco substrate comprising:

crushing the baked tobacco raw materials to obtain tobacco powder;

And adding a fumigant, an adhesive and purified water into the tobacco powder, uniformly mixing, granulating through a swinging process after kneading, and screening and drying to obtain a tobacco matrix.

2. The method of preparing a tobacco substrate of claim 1, wherein the tobacco material comprises one or more of sun-cured tobacco, aromatic tobacco, burley tobacco, maryland tobacco.

3. A method of preparing a tobacco substrate according to claim 2, wherein the tobacco material is prepared from sun-cured tobacco, aromatic tobacco, burley tobacco, and maryland tobacco in accordance with (0-15): (0-15): (0-5): (0-5) and uniformly mixing the components according to the weight ratio.

4. The method for preparing a tobacco substrate according to claim 1, wherein the active substance comprises one or more of white spirit, wine and rice wine, and the addition proportion of the active substance is 1-50 wt% of the weight of the tobacco raw material.

5. A method of preparing a tobacco substrate according to claim 1 wherein the smoking agent comprises glycerin and propylene glycol, and the mass of glycerin and propylene glycol is 30wt% to 40wt% and 6wt% to 7wt% of the mass of the tobacco powder, respectively.

6. A method of preparing a tobacco substrate according to claim 1 or 5, wherein the binder comprises one or more of invert sugar, starch, dextrin, carboxymethyl cellulose, the binder comprising from 0% to 50% by mass of the tobacco powder.

7. The method for preparing a tobacco substrate according to claim 1, wherein the purified water is added in a proportion of 6 to 50wt% based on the mass of the tobacco powder.

8. The method of preparing a tobacco substrate according to claim 1, wherein the step of storing the tobacco material for a predetermined period of time after adding the active material thereto comprises:

Or alternatively, the first and second heat exchangers may be,

9. The method of preparing a tobacco substrate of claim 1, wherein storing the tobacco material stored for a time in a predetermined temperature and humidity environment comprises:

10. The method of preparing a tobacco substrate of claim 1, wherein the baking of the stored tobacco material comprises: and baking the stored tobacco raw material for 30-60 min at 100-120 ℃.

11. A tobacco substrate prepared by the method of preparing a tobacco substrate according to any one of claims 1 to 10, wherein the tobacco substrate is in particulate form.

12. The tobacco substrate of claim 11, comprising a tobacco component, a smoking agent, a binder; wherein the tobacco component comprises one or more of sun-cured tobacco, aromatic tobacco, burley tobacco and maryland tobacco, the fumigant comprises glycerin and propylene glycol, and the glycerin, the propylene glycol and the adhesive respectively account for 30-40 wt%, 6-7 wt% and 0-50 wt% of the tobacco powder by mass.

13. The tobacco substrate of claim 12, wherein the tobacco component is formed from sun-cured tobacco, aromatic tobacco, burley tobacco, and maryland tobacco in accordance with (0-15): (0-15): (0-5): (0-5) and uniformly mixing the components according to the weight ratio.

14. The tobacco substrate of claim 12, wherein the binder comprises one or more of invert sugar, starch, dextrin, carboxymethyl cellulose.

15. A cigarette for use with a heated non-combustible smoking article, the cigarette comprising a tobacco segment internally filled with a tobacco substrate according to any one of claims 11 to 14.