An integrated heat-not-burn cigarette cartridge and its preparation method

Abstract

The present invention provides a method for preparing an integrated heat-not-burn cigarette cartridge, comprising: A) mixing tobacco raw materials, adhesives, water and spices, forming the mixture, freeze-drying the mixture, and obtaining a porous tobacco incense stick inner core; B) stirring and mixing the tobacco raw materials, adhesives, enhancers, and humectants, pouring the mixture into a mold containing the porous tobacco incense stick inner core, and freeze-drying the mixture to obtain an integrated heat-not-burn cigarette cartridge. The present invention utilizes tobacco raw materials and additives to prepare a cigarette cartridge through a freeze-drying method, wherein the interior of the cigarette cartridge contains a rich three-dimensional porous honeycomb structure, which has the advantages of a large specific surface area, a high porosity, and a low density, forming an air passage, facilitating the rapid dissolution and release of smoke and aroma components, reducing the suction resistance, and providing a better user experience. The internal passage structure and porosity of the three-dimensional porous cigarette cartridge can be adjusted by the solid content of the raw materials. Moreover, the integrated cigarette cartridge prepared by this process has better uniformity, and the stability of the product will be significantly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco, and in particular to an integrated heat-not-burn cigarette cartridge and a preparation method thereof. Background Art

[0002] Currently, the three main methods for producing reconstituted tobacco worldwide are the thick slurry method, the roller pressing method, and the papermaking method. While these mainstream reconstituted tobacco production methods are relatively mature, they still require steps such as shredding and rolling, making the process relatively complex. Furthermore, the distribution of reconstituted tobacco shreds in heat-not-burn (HNB) cartridges is prone to uneven distribution, affecting the consistency and smoking experience of the cartridges and leading to unstable smoke release during smoking.

[0003] Therefore, how to improve the uniformity, stability and dissolution characteristics of new tobacco products is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] In view of this, the technical problem to be solved by the present invention is to provide an integrated molded heat-not-burn cigarette cartridge. The cigarette cartridge provided by the present invention has a large specific surface area, a high porosity, a low density, and is easy to dissolve.

[0005] The present invention provides a method for preparing an integrated heat-not-burn cigarette cartridge, comprising:

[0006] A) mixing tobacco raw materials, a binder, water, and spices, forming a mixture, and freeze-drying the mixture to obtain a porous tobacco incense stick core;

[0007] B) The tobacco raw material, adhesive, enhancer, and humectant are stirred and mixed, poured into a mold containing the porous tobacco incense stick inner core, and freeze-dried to obtain an integrated heat-not-burn tobacco cartridge.

[0008] Preferably, in step A), the tobacco raw material is obtained by grinding and pulverizing one or more of tobacco flakes, tobacco dust, tobacco fragments, tobacco stem shreds, and expanded stem shreds; and the particle size of the tobacco raw material is 60-300 mesh.

[0009] Preferably, in step A), the binder comprises one or more of carboxymethyl cellulose, methyl cellulose, ethyl cellulose, acetyl cellulose, guar gum, gum arabic, shellac, alginic acid (potassium calcium), agar, gelatin, xanthan gum, chitosan, carob bean gum, konjac glucomannan, carbon powder, nanmu powder, and agarwood powder; the fragrance comprises monomer essence or fragrance extract;

[0010] The shape of the inner core of the porous tobacco incense stick is cylindrical, rectangular, triangular or five-pointed star.

[0011] Preferably, the molding process in step A) includes compression molding or extrusion molding; the compression parameters are to produce an inner core of an incense stick with a length of 16.5 cm and a diameter of 1-5 mm; the extrusion process includes placing the mixed material into an incense making machine, squeezing it downward by an extrusion head, and extruding the compressed material from a mold hole with a hole diameter of 1-5 mm. The mold hole can be a single hole or a row of multiple holes, and incense sticks arranged in rows can be extruded; the freeze-drying parameters include a pre-freezing temperature of -60°C to 10°C, a pre-freezing time of 2h to 24h, a freeze-drying vacuum degree lower than 200pa, a freeze-drying temperature of -60°C to 60°C, and a freeze-drying time of 15h to 36h.

[0012] The mass ratio of the tobacco raw material, adhesive, water and spices is 2:1:1:0~613:14.2:500:1.

[0013] Preferably, step B)

[0014] The tobacco raw material is obtained by grinding and pulverizing one or more of tobacco flakes, tobacco dust, tobacco fragments, tobacco stem shreds, and expanded stem shreds; the particle size of the tobacco raw material is 60-300 meshes;

[0015] The binder comprises one or more of carboxymethyl cellulose, methyl cellulose, ethyl cellulose, acetyl cellulose, guar gum, gum arabic, shellac, alginic acid (potassium calcium), agar, gelatin, xanthan gum, chitosan, locust bean gum or konjac glucomannan;

[0016] The reinforcing agent includes wood pulp fiber, tobacco fiber, modified starch, and starch; the humectant includes one or more of glycerol, sorbitol, xylitol, ethylene glycol, and propylene glycol.

[0017] Preferably, the stirring and mixing in step B) is carried out at a temperature of 20-90° C.;

[0018] The mass ratio of the tobacco raw material, water, adhesive, enhancer and humectant is 5.9:11.8:1:2.35:2.94~10:66.7:1:1.7:5.

[0019] Preferably, the freeze drying in step B) comprises: pre-freezing at -60°C to 10°C for 2h to 24h, then placing in a freeze dryer with a vacuum degree lower than 200 Pa and a temperature of -60°C to 60°C, and freeze drying for 15h to 36h.

[0020] Preferably, in step B), the shape of the mold includes a cylinder, a cuboid, a triangular prism or a pentagonal prism; the material of the mold includes one or more of polymer plastic, hard paper tube, soft paper tube, and cigarette paper.

[0021] The present invention provides an integrated heat-not-burn cigarette cartridge, which is prepared by the preparation method described in any one of the above technical solutions.

[0022] The present invention provides a heated cigarette, comprising the cigarette cartridge described in the above technical solution.

[0023] Compared to existing technologies, the present invention provides a method for preparing an integrated heat-not-burn tobacco cartridge, comprising: A) mixing tobacco raw materials, a binder, water, and flavorings, forming a mixture, and freeze-drying the mixture to produce a porous tobacco incense stick inner core; B) mixing the tobacco raw materials, a binder, a reinforcing agent, and a humectant, pouring the mixture into a mold containing the porous tobacco incense stick inner core, and freeze-drying the mixture to produce the integrated heat-not-burn tobacco cartridge. The present invention utilizes tobacco raw materials and additives through freeze-drying to produce a cartridge with a rich three-dimensional porous honeycomb structure inside. This structure exhibits advantages such as a large specific surface area, high porosity, and low density. This structure creates air passages, facilitates the rapid dissolution and release of smoke and flavoring components, reduces draw resistance, and enhances user experience. The internal passage structure and porosity of the three-dimensional porous cartridge can be adjusted by adjusting the solids content of the raw materials. Furthermore, the integrated cartridge produced by this process exhibits improved uniformity, significantly enhancing product stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the internal structure of the three-dimensional porous integrated heat-not-burn cigarette cartridge in Example 2;

[0025] Figure 2 Schematic diagram of the internal structure of the three-dimensional porous integrated heat-not-burn cigarette cartridge in Example 3;

[0026] Figure 3 Schematic diagram of the three-dimensional porous integrated molding heat-not-burn cigarette cartridge;

[0027] Figure 4 Example 1 scanning electron microscope microstructure diagram;

[0028] Figure 5 . Thermogravimetric test results of the cigarette cartridge in Example 1. DETAILED DESCRIPTION

[0029] The present invention provides an integrated molded heat-not-burn cigarette cartridge and a method for preparing the same. Those skilled in the art can refer to the contents of this article and appropriately improve the process parameters to achieve the desired effect. It should be noted that all similar substitutions and modifications are obvious to those skilled in the art and fall within the scope of protection of the present invention. The methods and applications of the present invention have been described through preferred embodiments. Relevant personnel can obviously modify or appropriately change and combine the methods and applications herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0030] In this application, the term "and / or" describes the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0031] Therefore, it is necessary to develop an integrated molding method to prepare three-dimensional porous heat-not-burn cigarette cartridges. This application mainly prepares HNB cartridges through a freeze-drying method.

[0032] Vacuum freeze drying can obtain a three-dimensional porous structure by sublimating frozen solid ice under vacuum conditions.

[0033] The integrated heat-not-burn cigarette cartridge provided by the present invention comprises a porous tobacco incense stick inner core and an outer protective layer.

[0034] The HNB cartridge described in this application is similar in structure to a pencil, consisting primarily of a "pencil core" and a "wooden protective layer." The first, circular core, primarily consists of a tobacco incense stick that can be adjusted to create different flavors. The second, outer protective layer, is a three-dimensional porous cartridge made from a slurry containing tobacco ingredients. This simple, integrated molding method enables the creation of complex components with multiple layers and differently shaped circular cores. The HNB cartridge also maintains a uniform distribution of tobacco and auxiliary materials, while its porous structure facilitates stable smoke release during smoking, resulting in a consistent and enjoyable smoking experience.

[0035] The present invention provides a method for preparing an integrated heat-not-burn cigarette cartridge, comprising:

[0036] A) mixing tobacco raw materials, a binder, water, and spices, forming a mixture, and freeze-drying the mixture to obtain a porous tobacco incense stick core;

[0037] B) The tobacco raw material, adhesive, enhancer, and humectant are stirred and mixed, poured into a mold containing the porous tobacco incense stick inner core, and freeze-dried to obtain an integrated heat-not-burn tobacco cartridge.

[0038] The integrated heat-not-burn cigarette cartridge provided by the present invention first prepares a porous tobacco incense stick inner core by mixing tobacco raw materials, a binder, water and spices, forming the mixture, and freeze-drying the mixture to obtain the porous tobacco incense stick inner core.

[0039] The tobacco raw material of the present invention is obtained by grinding and pulverizing one or more of tobacco flakes, tobacco dust, tobacco fragments, tobacco stem shreds, and expanded stem shreds; the particle size of the tobacco raw material is 60-300 mesh; specifically, it can be 60 mesh, 100 mesh, 150 mesh, 200 mesh, 250 mesh, 300 mesh, or a range between any two of the above.

[0040] The adhesive of the present invention comprises one or more of carboxymethyl cellulose, methyl cellulose, ethyl cellulose, acetyl cellulose, guar gum, gum arabic, shellac, alginic acid (potassium calcium), agar, gelatin, xanthan gum, chitosan, carob gum, konjac glucomannan, carbon powder, nanmu powder, agarwood powder.

[0041] The flavors include monomer flavors or flavor extracts, including but not limited to sweet orange flavor, honeydew melon flavor, blueberry flavor, mint flavor, coffee flavor, grape flavor, caramel flavor, peach flavor, passion fruit flavor, cucumber flavor, and lemon flavor.

[0042] According to the present invention, the mass ratio of the tobacco raw material, adhesive, water and spices is 2:1:1:0~613:14.2:500:1.

[0043] Preferably, the mass ratio of the tobacco raw material, adhesive, water and flavor is 600:29:500:1.

[0044] The shape of the inner core of the porous tobacco incense stick of the present invention includes but is not limited to a cylinder, a cuboid, a triangular prism or a five-pointed star prism.

[0045] The diameter of the inner core of the porous tobacco incense stick of the present invention is preferably 1-5 mm; specifically, it can be 1 mm, 1.5 mm, 2 mm, 3 mm or 5 mm.

[0046] Among them, the molding process includes compression molding or extrusion molding; the molding parameters are to make an inner core of an incense stick with a length of 16.5 cm and a diameter of 1~5 mm; the extrusion process includes putting the mixed material into an incense making machine, squeezing it downward by an extrusion head, and the compressed material is extruded from the mold hole with a hole diameter of 1~5 mm. The mold hole can be a single hole or a row of multiple holes, and incense sticks arranged in rows can be extruded; the freeze-drying parameters include a pre-freezing temperature of -60℃~10℃, a pre-freezing time of 2h~24h, a freeze-drying vacuum degree lower than 200pa, a freeze-drying temperature of -60℃~60℃, and a freeze-drying time of 15h~36h.

[0047] The tobacco raw materials, adhesive, enhancer and humectant are stirred and mixed, and then poured into a mold containing the inner core of the porous tobacco incense stick.

[0048] The tobacco raw material of the present invention is obtained by grinding and pulverizing one or more of tobacco flakes, tobacco dust, tobacco fragments, tobacco stem shreds, and expanded stem shreds; the particle size of the tobacco raw material is 60-300 mesh; specifically, it can be 60 mesh, 100 mesh, 150 mesh, 200 mesh, 250 mesh, 300 mesh, or a range between any two of the above.

[0049] The adhesive of the present invention comprises one or more of carboxymethyl cellulose, methyl cellulose, ethyl cellulose, acetyl cellulose, guar gum, gum arabic, shellac, alginic acid (potassium calcium), agar, gelatin, xanthan gum, chitosan, locust bean gum, and konjac glucomannan.

[0050] The reinforcing agent includes wood pulp fiber, tobacco fiber, modified starch, and starch; the humectant includes one or more of glycerol, sorbitol, xylitol, ethylene glycol, and propylene glycol.

[0051] The stirring and mixing of the present invention is stirring and mixing at 20-90°C; preferably stirring and mixing at 30-80°C; more preferably stirring and mixing at 40-70°C.

[0052] According to the present invention, the mass ratio of the tobacco raw material, water, adhesive, enhancer and humectant is 5.9:11.8:1:2.35:2.94-10:66.7:1:1.7:5.

[0053] Preferably, the mass ratio of the tobacco raw material, water, adhesive, enhancer and humectant is 13.3:40:1:5.3:5.3.

[0054] After being poured into a mold containing the above-mentioned porous tobacco incense stick inner core, it is freeze-dried to obtain an integrated heat-not-burn cigarette cartridge.

[0055] The freeze drying method of the present invention comprises: pre-freezing at -60°C to 10°C for 2 hours to 24 hours, placing the sample in a freeze dryer with a vacuum degree of less than 200 Pa and a temperature of -60°C to 60°C, and freeze drying the sample for 15 hours to 36 hours.

[0056] Preferably, the pre-freezing temperature is -40°C to -15°C; the freeze-drying temperature is -60°C to -30°C, and the time is 20-24 hours.

[0057] The shape of the mold of the present invention includes a cylinder, a cuboid, a triangular prism or a pentagonal prism; the material of the mold includes one or more of polymer plastic, hard paper tube, soft paper tube, and cigarette paper.

[0058] The present invention provides an integrated heat-not-burn cigarette cartridge, which is prepared by the preparation method described in any one of the above technical solutions.

[0059] The present invention provides a heated cigarette, comprising the cigarette cartridge described in the above technical solution.

[0060] The present invention provides a method for preparing an integrated heat-not-burn tobacco cartridge, comprising: A) mixing tobacco raw materials, a binder, water, and flavorings, forming a mixture, and freeze-drying the mixture to produce a porous tobacco incense stick inner core; B) mixing the tobacco raw materials, a binder, a reinforcing agent, and a humectant, pouring the mixture into a mold containing the porous tobacco incense stick inner core, and freeze-drying the mixture to produce the integrated heat-not-burn tobacco cartridge. The present invention utilizes tobacco raw materials and additives through freeze-drying to produce a cartridge with a rich three-dimensional porous honeycomb structure inside. This structure has advantages such as a large specific surface area, high porosity, and low density. This structure creates an air passageway, facilitates the rapid dissolution and release of smoke and flavoring components, reduces draw resistance, and enhances user experience. The internal passageway structure and porosity of the three-dimensional porous cartridge can be adjusted by adjusting the solids content of the raw materials. Furthermore, the integrated cartridge produced by this process exhibits improved uniformity, significantly enhancing product stability.

[0061] The aroma of the incense stick inside the cigarette cartridge of this invention can be controlled using spices to create different flavors. Furthermore, the size and shape of the cigarette cartridge can be adjusted arbitrarily based on the mold shape. The integrated heat-not-burn cigarette cartridge contains a large number of porous network structures. The porosity and open area of ​​this porous structure can be controlled by increasing or decreasing the solids content and selecting different polysaccharide materials. The size and shape of the integrated heat-not-burn cigarette cartridge and the internal incense stick core are adjustable.

[0062] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. Some or all of the steps can be executed in parallel or sequentially. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0063] The numerical ranges and parameters used in this disclosure are presented as accurately as possible to represent the relevant numerical values ​​in the specific embodiments. However, any numerical value inherently and inevitably contains standard deviations due to individual testing methods. Therefore, unless otherwise expressly stated, it should be understood that all numerical ranges or specific data used in this disclosure are subject to reasonable deviation within a certain range, for example, within 1% or 0.5%.

[0064] Some cases are described in the embodiments and comparative examples of the present invention, wherein the embodiments illustrate certain implementations of the present invention. However, this does not mean that the effects of the present invention can only be achieved in these cases.

[0065] To further illustrate the present invention, an integrated heat-not-burn cigarette cartridge and a preparation method thereof provided by the present invention are described in detail below with reference to examples.

[0066] Example 1:

[0067] (1) Round core porous tobacco incense sticks

[0068] Raw material weight or volume

[0069] 150g water

[0070] 184g tobacco powder

[0071] Carboxymethyl cellulose 0.75g

[0072] 1g xanthan gum

[0073] 2.5g nanmu powder

[0074] Blueberry flavor 0.3g

[0075] (2) External protective layer

[0076] 75g tobacco powder

[0077] 225g water

[0078] 3g guar gum

[0079] Carboxymethyl cellulose 2.5g

[0080] Sodium alginate 0.15g

[0081] Propylene glycol 30g

[0082] 30g wood pulp fiber

[0083] Figure 3 This is a schematic diagram of the effect of a three-dimensional porous integrated heat-not-burn cigarette cartridge; Figure 4 Example 1 scanning electron microscope microstructure diagram; Figure 5 . Example 1 Thermogravimetric test results of cigarette cartridges. Figure 4 The internal structure of the outer protective layer of the heat-not-burn cigarette cartridge is shown. It can be seen that the internal porous cavity is uniform in structure. Figure 5 It shows the thermal stability of the heat-not-burn tobacco cartridge material. From the figure, it can be seen that around 100°C there is a small amount of water loss, 196.01°C is the temperature at which the weight loss process starts; 349.01°C is the temperature at which the weight loss process ends, and it has good thermal stability.

[0084] Example 2:

[0085] (1) Round core porous tobacco incense sticks

[0086] Raw material weight or volume

[0087] 25g water

[0088] 65g shredded rice flour

[0089] Carboxymethyl cellulose 5.25g

[0090] 1.5g guar gum

[0091] 2.5g nanmu powder

[0092] 30g carbon powder

[0093] Coffee essence 0.1g

[0094] (2) External protective layer

[0095] 75g tobacco powder

[0096] 150g water

[0097] Carboxymethyl cellulose 1g

[0098] 2g gum arabic

[0099] Xanthan gum 0.1g

[0100] Propylene glycol and glycerol 30g

[0101] 20g wood pulp fiber

[0102] Figure 1 Schematic diagram of the internal structure of the three-dimensional porous integrated heat-not-burn cigarette cartridge in Example 2.

[0103] Example 3:

[0104] (1) Round core porous tobacco incense sticks

[0105] Raw material weight or volume

[0106] 25g water

[0107] 30g shredded rice flour

[0108] Carboxymethyl cellulose 0.5g

[0109] 1g guar gum

[0110] 3g nanmu powder

[0111] Carbon powder 10g

[0112] Honeydew melon flavor 0.05g

[0113] (2) External protective layer

[0114] 100g shredded rice flour

[0115] 300g water

[0116] Ethyl cellulose 5g

[0117] 2g gum arabic

[0118] Chitosan 0.3g

[0119] Propylene glycol and glycerol 10g

[0120] Wood pulp fiber 10g

[0121] Figure 2 Schematic diagram of the internal structure of the three-dimensional porous integrated heat-not-burn cigarette cartridge in Example 3.

[0122] Example 4:

[0123] (1) Round core porous tobacco incense sticks

[0124] Raw material weight or volume

[0125] 40g water

[0126] 80g tobacco powder

[0127] Carboxymethyl cellulose 2g

[0128] Agar 3g

[0129] 5g nanmu powder

[0130] Carbon powder 10g

[0131] 20g agarwood powder

[0132] (2) External protective layer

[0133] 50g tobacco powder

[0134] 100g water

[0135] Carboxymethyl cellulose 3.5g

[0136] Sodium alginate 5g

[0137] Propylene glycol 25g

[0138] 20g wood pulp fiber

[0139] Example 5:

[0140] (1) Round core porous tobacco incense sticks

[0141] Raw material weight or volume

[0142] 30g water

[0143] 40g shredded rice flour

[0144] Sodium alginate 2g

[0145] Carboxymethyl cellulose 5g

[0146] Carbon powder 10g

[0147] 20g agarwood powder

[0148] Cucumber flavor 0.2g

[0149] (2) External protective layer

[0150] 30g shredded rice flour

[0151] 150g water

[0152] Ethyl cellulose 5g

[0153] Gum Arabic 0.5g

[0154] Chitosan 0.3g

[0155] Propylene glycol and glycerol 10g

[0156] Wood pulp fiber 10g

[0157] Example 6:

[0158] (1) Round core porous tobacco incense sticks

[0159] Raw material weight or volume

[0160] 30g water

[0161] 60g tobacco powder

[0162] Carboxymethyl cellulose 5g

[0163] Glycerin 0.5g

[0164] 20g nanmu powder

[0165] Sweet orange flavor 1g

[0166] (2) External protective layer

[0167] 30g shredded rice flour

[0168] 200g water

[0169] Ethylcellulose 1g

[0170] Chitosan 2g

[0171] Propylene glycol and glycerol 15g

[0172] Wood pulp fiber 5g

[0173] Comparative Example 1

[0174] Round core porous tobacco incense sticks

[0175] Raw material weight or volume

[0176] 150g water

[0177] 184g tobacco powder

[0178] Carboxymethyl cellulose 0.75g

[0179] 1g xanthan gum

[0180] 2.5g nanmu powder

[0181] Blueberry flavor 0.3g

[0182] (3) External protective layer

[0183] 75g tobacco powder

[0184] 225g water

[0185] 3g guar gum

[0186] Carboxymethyl cellulose 2.5g

[0187] Sodium alginate 0.15g

[0188] Propylene glycol 30g

[0189] Comparative Example 2

[0190] (1) Round core porous tobacco incense sticks

[0191] Raw material weight or volume

[0192] 25g water

[0193] 65g shredded rice flour

[0194] 1.5g guar gum

[0195] 2.5g nanmu powder

[0196] 30g carbon powder

[0197] Coffee essence 0.1g

[0198] (2) External protective layer

[0199] 75g tobacco powder

[0200] 150g water

[0201] 2g gum arabic

[0202] Xanthan gum 0.1g

[0203] Propylene glycol and glycerol 30g

[0204] 20g wood pulp fiber

[0205] Preparation method:

[0206] Tobacco raw materials, adhesives, water and spices are mixed and formed, and freeze-dried to obtain a porous tobacco incense stick inner core; tobacco raw materials, adhesives, enhancers and humectants are stirred and mixed, poured into a mold containing the above-mentioned porous tobacco incense stick inner core, and freeze-dried to obtain an integrated heated non-burning tobacco cartridge.

[0207] The specific parameters are described in Table 1, and the performance is described in Table 2. Figure 4 As shown, the sample structure is uniform. Figure 5 The thermogravimetric test results of Example 1 show that the sample has good stability.

[0208] Table 1

[0209]

[0210] Table 2

[0211]

[0212] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A method for preparing an integrated heat-not-burn cigarette cartridge, characterized in that: include: A) Tobacco raw material, a binder, water, and a flavoring are mixed and formed, and freeze-dried to obtain a porous tobacco incense stick inner core; step A) the forming process comprises compression molding or extrusion molding; the molding parameters are as follows: producing an incense stick inner core with a length of 16.5 cm and a diameter of 1-5 mm; the forming process comprises placing the mixed material into an incense making machine, extruding the material downwardly through a die hole with a diameter of 1-5 mm, the die hole being a single hole or a row of multiple holes, and extruding the incense sticks arranged in rows; B) mixing tobacco raw materials, a binder, a reinforcing agent, and a humectant, and pouring the mixture into a mold containing the porous tobacco incense stick core, and freeze-drying the mixture to obtain an integrated heat-not-burn tobacco cartridge; the tobacco raw materials in steps A) and B) are obtained by grinding and pulverizing one or more of tobacco flakes, tobacco dust, tobacco fragments, tobacco stem shreds, and expanded stem shreds; and the particle size of the tobacco raw materials is 60-300 mesh; The reinforcing agent includes wood pulp fiber, tobacco fiber, modified starch and starch.

2. The preparation method according to claim 1, characterized in that Step A) the binder comprises one or more of carboxymethyl cellulose, methyl cellulose, ethyl cellulose, acetyl cellulose, guar gum, gum arabic, shellac, potassium alginate, calcium alginate, agar, gelatin, xanthan gum, chitosan, carob gum, and konjac glucomannan; the flavor comprises a monomer flavor or a flavor extract; The shape of the inner core of the porous tobacco incense stick is cylindrical, rectangular, triangular or five-pointed star.

3. The preparation method according to claim 1, characterized in that Step B) The binder comprises one or more of carboxymethyl cellulose, methyl cellulose, ethyl cellulose, acetyl cellulose, guar gum, gum arabic, shellac, potassium alginate, calcium alginate, agar, gelatin, xanthan gum, chitosan, locust bean gum or konjac glucomannan; The humectant includes one or more of glycerol, sorbitol, xylitol, ethylene glycol, and propylene glycol.

4. The preparation method according to claim 1, characterized in that Step B) the stirring and mixing is carried out at a temperature of 20-90°C.

5. The preparation method according to claim 1, characterized in that Step B) The shape of the mold includes cylinder, cuboid, triangular prism or pentagonal prism; the material of the mold includes one or more of polymer plastic, hard paper tube, soft paper tube and cigarette paper.

6. An integrated heat-not-burn cigarette cartridge, characterized in that: The method is prepared according to any one of claims 1 to 5.

7. A heated cigarette, characterized in that: Including the cigarette cartridge according to claim 6.

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