Preparation method of cigarette core material for heating cigarette

Abstract

The invention discloses a preparation method of a cigarette core material for heating cigarettes. The preparation method comprises the following steps: preparing tobacco shreds of tobacco sheets with different functions; fitting a relation function between the mixture filling value and the tobacco shreds with all functions, and determining a blending rule; determining a preset filling value after the tobacco shreds with all functions are blended according to a preset blending proportion based on the relation function; when the tobacco shreds with all the functions are actually blended, detecting a first actual filling value of the initially blended tobacco shreds obtained after the initial blending; supplementing and blending the initial mixed tobacco shreds according to the first actual filling value, a preset filling value and a blending rule, and taking the supplemented and blended mixed tobacco shreds as final mixed tobacco shreds; the final mixed tobacco shreds are subjected to tobacco shred drying, perfuming and tobacco shred storage treatment, and the tobacco core material of the heated cigarette is obtained. According to the application, the preset filling value corresponding to the preset blending proportion is determined by using the relation function, and then actual blending is carried out by taking the preset blending proportion as the basis and the preset filling value as the target, so that the uniformity of the cigarette core material is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of heated cigarettes, and more specifically, to a method for preparing a cigarette core material for heated cigarettes. Background Art

[0002] As one of the new tobacco products, heated cigarettes are smoked in a way that is different from traditional cigarettes. They mainly transfer smoke-producing substances through heating. However, the tobacco used in traditional cigarettes has poor atomization and aroma quality under heating conditions. The aroma-producing materials suitable for heated cigarettes need to be able to produce smoke under low temperature conditions and release certain aroma substances to meet consumers' smoking needs.

[0003] The core material of some heated cigarettes is made by blending various types of tobacco flakes. In the prior art, when testing the blending uniformity, the tobacco flakes of various tobacco flakes are usually manually selected from the blended tobacco shreds or solvents are added to the blended tobacco shreds to separate different types of tobacco shreds, and then the blending uniformity is calculated by weighing different types of tobacco shreds. The manual selection, weighing and calculation have low accuracy and cannot ensure the uniformity of the final core material.

[0004] The uniformity of the core material of heated cigarettes is crucial to the sensory quality of the product and is an important indicator of product quality. Uneven distribution of the core material components will cause the composition of the heated cigarette smoke to change during the transfer process, affecting the aroma and taste characteristics of the heated cigarette, and even causing changes in the style characteristics of the heated cigarette. Summary of the invention

[0005] The present application provides a method for preparing a tobacco core material for a heated cigarette. First, a relationship function is used to determine a preset filling value corresponding to a preset blending ratio. Then, actual blending is performed based on the preset blending ratio and the preset filling value as a target, thereby obtaining evenly blended mixed shredded tobacco and ensuring the uniformity of the tobacco core material.

[0006] The present application provides a method for preparing a core material for a heated cigarette, comprising:

[0007] Preparation of tobacco shreds with different functional tobacco sheets;

[0008] Fit the relationship function between the filling value of the mixture and all the functional tobacco, and determine the blending rules;

[0009] Determine, based on the relationship function, a preset filling value after tobacco shreds of all functions are blended according to a preset blending ratio;

[0010] When the tobacco shreds with all functions are actually blended, a first actual filling value of the initial mixed tobacco shreds obtained after the initial blending is detected;

[0011] Supplementary blending is performed on the initial mixed shredded tobacco according to the first actual filling value, the preset filling value and the blending rule, so that the difference between the second actual filling value obtained after the supplementary blending and the preset filling value is within the preset value, and the mixed shredded tobacco after the supplementary blending is used as the final mixed shredded tobacco;

[0012] The final mixed shredded tobacco is subjected to shred drying, flavoring and shred storage processes to obtain the tobacco core material for heated cigarettes.

[0013] Preferably, fitting the relationship function between the mixture filling value and the tobacco shreds of all functions specifically includes:

[0014] Blend tobacco shreds of all functions based on different blending ratios, and detect the filling values ​​of the mixtures corresponding to the different blending ratios;

[0015] Curve fitting is performed based on all blending ratios and their mixture filling values ​​to obtain a relationship function with the blending ratio of all functional tobacco as the independent variable and the mixture filling value as the dependent variable.

[0016] Preferably, the first actual filling value and the second actual filling value include actual filling values ​​obtained at the initial, middle and final stages of blending, respectively.

[0017] Preferably, the tobacco sheets with different functions include a tobacco aroma module, a aroma carrying module and a filling module;

[0018] The main function of the tobacco aroma module is to provide tobacco aroma when smoking heated cigarettes, so as to increase the tobacco aroma;

[0019] Adding flavor essence or functional essence into the aroma-carrying module is used to provide external fragrance or improve sensory quality;

[0020] The filling module is used to adjust the leaf group recipe filling value.

[0021] Preferably, the blending rules are:

[0022] If the difference between the actual filling value and the preset filling value is greater than the preset value, the blending is uneven;

[0023] In the case of uneven blending, if the actual filling value is greater than the preset filling value, the supplementary tobacco is the tobacco of the filling module, and the filling module is added during supplementary blending; if the actual filling value is less than the preset filling value, the supplementary tobacco is the tobacco of the flavor carrier module and the tobacco of the flavor module, and the ratio of the tobacco of the flavor carrier module and the tobacco of the flavor module added during supplementary blending is the same as the preset ratio.

[0024] Preferably, preparing the fragrance carrying module specifically comprises:

[0025] The first tobacco leaf raw material is crushed into coarse tobacco powder on a crusher and then sieved to obtain the first tobacco powder;

[0026] Weigh the first initial material according to the first preset ratio, add water and shear and homogenize to form a standby slurry; the first initial material includes first tobacco powder, outer fiber, adhesive, smoke generating agent, auxiliary agent, flavor essence or functional essence;

[0027] The spare slurry is fed into the headbox until the slurry planes are at the same height, and then dried;

[0028] Scrape out the dried sample to form a sheet-like fragrance-carrying module.

[0029] Preferably, preparing the filling module specifically comprises:

[0030] The second tobacco leaf raw material is crushed into coarse tobacco powder on a crusher and then sieved to obtain the second tobacco powder;

[0031] Weighing the second initial material according to the second preset ratio, and preparing the second initial material into a coating liquid with a suitable concentration; the second initial material includes a second smoke powder, an adhesive, and a smoke generating agent;

[0032] The coating liquid is coated on the substrate, and after multi-stage positive and negative coating and drying, a sheet-shaped filling module is obtained.

[0033] Preferably, preparing the tobacco flavor module specifically includes:

[0034] The third initial material is uniformly stirred and kneaded; wherein the third initial material includes third tobacco powder, atomizer, fiber and tobacco flavor;

[0035] Put the mass material into the roller press for multiple roller pressing;

[0036] The roll-formed material is dried to obtain a sheet-shaped tobacco aroma module.

[0037] Preferably, the temperature of the wire drying is 90° C. to 110° C., and the time of the wire drying is 10s to 30s.

[0038] Preferably, the amount of flavoring is 0.5% to 3%.

[0039] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0041] Figure 1 A flow chart of a method for preparing a core material for a heated cigarette provided in the present application. DETAILED DESCRIPTION

[0042] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0043] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0044] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0045] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0046] The present application provides a method for preparing a tobacco core material for a heated cigarette, firstly using a relationship function to determine a preset filling value corresponding to a preset blending ratio, and then performing actual blending based on the preset blending ratio and targeting the preset filling value, thereby obtaining a uniformly blended mixed tobacco shreds and ensuring the uniformity of the tobacco core material. Furthermore, during the cigarette rolling process, sensory evaluation is also used to verify the blending uniformity, further providing a guarantee for the uniformity of the tobacco core material. In addition, the present application uses tobacco flakes with different functions for blending, and by changing the blending ratio of each function, heated cigarettes with different smoking flavors can be manufactured. The preparation method of the present application can improve the diversity of heated cigarettes and provide high control flexibility.

[0047] like Figure 1 As shown, the method for preparing the core material of the heated cigarette provided in the present application comprises:

[0048] S110: preparing shredded tobacco sheets with different functions.

[0049] As an embodiment, tobacco sheets with different functions include a tobacco aroma module, a flavor carrier module and a filling module. The main function of the tobacco aroma module is to provide tobacco aroma when smoking heated cigarettes, so as to increase the tobacco aroma. Flavor essence or functional essence is added to the flavor carrier module to provide external aroma or improve sensory quality. The filling module is used to adjust the filling value of the leaf group formula, which has a small contribution to the aroma and basically does not affect the aroma style of the formula.

[0050] The preparation of the tobacco aroma module specifically comprises:

[0051] P1: Evenly stir and knead the third initial material, wherein the third initial material includes third tobacco powder, atomizer, fiber and tobacco flavor.

[0052] P2: Place the agglomerated material into a roller press for multiple roller pressing.

[0053] P3: Drying the roll-formed material to obtain a sheet-shaped tobacco aroma module.

[0054] The preparation of the fragrance carrying module specifically comprises:

[0055] Q1: The first tobacco leaf raw material is crushed into coarse tobacco powder on a crusher and then sieved to obtain the first tobacco powder.

[0056] Q2: Weigh the first initial material according to the first preset ratio, add water and shear and homogenize into a ready-to-use slurry. The first initial material includes the first tobacco powder, outer fiber (after defibration), adhesive, smoke agent, additive, flavor essence or functional essence, etc.

[0057] Q3: Input the spare slurry into the headbox until the slurry plane is at the same height, and then dry it.

[0058] Q4: Scrape out the dried sample to form a sheet-like fragrance-carrying module.

[0059] Prepare a filling module, specifically including:

[0060] R1: Grind the second tobacco leaf raw material into coarse tobacco powder on a grinder and then sieve it to obtain the second tobacco powder.

[0061] R2: Weigh the second initial material according to the second preset ratio, and prepare the second initial material into a coating liquid with a suitable concentration. The second initial material includes a second smoke powder, an adhesive, a smoke generating agent, and the like.

[0062] R3: The coating liquid is coated on the substrate, and after multi-stage positive and negative coating and drying, a sheet-shaped filling module is obtained.

[0063] Among them, changing the number of positive and negative coating can reduce or increase the filling value of the filling module.

[0064] It should be noted that tobacco powder, atomizer, fiber, tobacco flavor, outer fiber, adhesive, smoke agent, additive, flavor essence or functional flavor, etc. are all materials well known in the art.

[0065] After obtaining the sheet-shaped tobacco flavor module, the flavor carrier module and the filling module, they are respectively subjected to shredding processing to obtain the tobacco shreds of the tobacco flavor module, the flavor carrier module and the filling module.

[0066] As an example, the physical indicators of the fragrance carrying module are: basis weight 170~230g / m²; thickness 0.17~0.23mm; tensile strength ≥0.30KN / m; moisture content 4.5~7.5%; length 12~18mm; width 0.8~1.2mm; filling value 3-10g / cm 3 .

[0067] The physical indicators of the tobacco aroma module are: quantitative 170~230g / m²; thickness 0.18~0.24mm; tensile strength ≥0.30KN / m; moisture content 4.5~7.5%; length 12~18mm; width 0.8~1.2mm; filling value 5-15g / cm 3 .

[0068] The physical indicators of the filling module are: quantitative 80~170g / m²; thickness 0.27~0.33mm; tensile strength ≥0.35KN / m; moisture content 10~14%; length 12~18mm; width 0.8~1.2mm; filling value 1-10g / cm 3 .

[0069] S120: Fitting the relationship function between the mixture filling value and all functional tobacco shreds, and determining the blending rules.

[0070] As an embodiment, fitting the relationship function between the mixture filling value and the tobacco shreds of all functions specifically includes:

[0071] S1201: Blending tobacco shreds of all functions based on different blending ratios, and detecting the mixture filling values ​​corresponding to the different blending ratios.

[0072] S1202: Perform curve fitting based on all blending ratios and their mixture filling values ​​to obtain a relationship function with the blending ratios of all functional tobacco as independent variables and the mixture filling value as dependent variables:

[0073] Y=aX1+bX2+cX3

[0074] Among them, Y is the filling value of the mixture; X1 is the blending ratio of the fragrance module; X2 is the blending ratio of the tobacco fragrance module; X3 is the blending ratio of the filling module; a, b, and c are constants.

[0075] As an embodiment, the blending rule is obtained based on the relationship function. The blending rule is:

[0076] If the difference between the actual filling value and the preset filling value is greater than the preset value (for example 1g / cm 3 ), the mixing is uneven.

[0077] In the case of uneven blending, if the actual filling value is greater than the preset filling value, the supplementary tobacco is the tobacco of the filling module, and the filling module is added during the supplementary blending. If the actual filling value is less than the preset filling value, the supplementary tobacco is the tobacco of the flavor module and the tobacco of the flavor module, and the ratio of the tobacco of the flavor module and the tobacco of the flavor module added during the supplementary blending is the same as the preset ratio.

[0078] S130: Determine, based on the relationship function, a preset filling value after the tobacco shreds of all functions are blended according to a preset blending ratio.

[0079] S140: When the tobacco shreds with all functions are actually blended, a first actual filling value of the initial mixed tobacco shreds obtained after the initial blending is detected.

[0080] S150: Supplementary blending is performed on the initial mixed shredded tobacco according to the first actual filling value, the preset filling value and the blending rule, so that the difference between the second actual filling value and the preset filling value obtained after the supplementary blending is within the preset value, and the mixed shredded tobacco after the supplementary blending is used as the final mixed shredded tobacco.

[0081] Preferably, the first actual filling value and the second actual filling value respectively include sampling at the initial, middle and final stages of blending to obtain corresponding actual filling values.

[0082] As an embodiment, when the initial mixed shredded tobacco is supplemented, the following steps are repeated until the difference between the second actual filling value and the preset filling value is within the preset value:

[0083] S1501: Take out multiple samples of the same weight from the mixed smoke after the previous round of blending.

[0084] S1502: Add supplementary shredded tobacco of different supplementary proportions to different samples, and detect the corresponding supplementary filling values ​​respectively.

[0085] S1503: The supplementary ratio corresponding to the supplementary filling value closest to the preset filling value is used as the target ratio of supplementary shredded tobacco in the supplementary blending.

[0086] S1504: Supplementary blending is performed according to the target ratio, and the actual filling value is detected as the latest second actual filling value.

[0087] S160: The final mixed shredded tobacco is subjected to shred drying, flavoring and shred storage processes to obtain a tobacco core material for heated cigarettes.

[0088] As an example, the temperature of the silk drying is 90°C to 110°C, the time of the silk drying is 10s to 30s, the amount of fragrance added is 0.5% to 3%, the silk storage time is 1d to 3d, the temperature is 21°C to 25°C, and the humidity is 55% to 65%.

[0089] Preferably, the method for preparing the core material of the heated cigarette provided in the present application further comprises:

[0090] S170: During the process of rolling cigarettes with the tobacco core material, sensory evaluation is performed on the finished mixed tobacco to check whether the blending is uniform. If the test result shows that the blending is not uniform, the process returns to S140 to adjust the filling value.

[0091] Specifically, during the actual rolling process, samples are taken at the early, middle and final stages of cigarette rolling for sensory evaluation to determine whether the style has changed before and after and to verify whether the tobacco core materials of the batch are evenly blended.

[0092] Example:

[0093] 1. Prepare a tobacco flavor module, a flavor carrier module and a filling module according to the above-mentioned preparation methods of the tobacco flavor module, the flavor carrier module and the filling module.

[0094] 2. Use a shredder to shred the tobacco aroma module, aroma carrier module and filling module respectively.

[0095] After testing, the physical indicators of the filling module are: 98g / m²; thickness 0.28mm; tensile strength 0.36KN / m; moisture content 12.36%; length 14.5mm; width 0.95mm; filling value 4.4g / cm 3 .

[0096] The physical indicators of the aroma module are: basis weight 210g / m²; thickness 0.19mm; tensile strength 0.30KN / m; moisture content 5.5%; length 14.3mm; width 0.92mm; filling value 7.2g / cm 3 .

[0097] The physical indicators of the tobacco aroma module are: 220g / m²; thickness 0.19mm; tensile strength 0.30KN / m; moisture content 7%; length 14.3mm; width 0.92mm; filling value 9.8g / cm 3 .

[0098] 3. After the tobacco of the tobacco fragrance module, filling module and fragrance carrier module are mixed evenly according to 4:4:2, 3:3:4 and 6:2:2, the filling values ​​of the mixture are tested to be 7.2g / cm 3 、6.4g / cm 3 , 8g / cm 3 Based on these three blending ratios and their mixture filling values, curve fitting is performed to obtain the relationship function: Y=1 / 60X1+189 / 20X2-11 / 2X3.

[0099] 4. When designing the core material of heated cigarettes, the tobacco aroma module, filling module and aroma carrier module are mixed in a ratio of 3:3:4. According to the above relationship function, the preset filling value is calculated to be 6.4g / cm 3 .

[0100] 5. In the actual production process, the tobacco aroma module, filling module, and aroma carrier module are put into the leaf moistening machine in a ratio of 3:3:4, with a total of 100kg of tobacco shreds, for initial blending. Samples are taken at the initial, middle, and final stages of blending, and the average of the first actual filling values ​​is 8.6g / cm 3 、8.3g / cm 3 、8.3g / cm 3 The differences between the three actual filling values ​​and the preset filling values ​​are all greater than 1 g / cm 3 , so it is determined that the initial blending is uneven. And the three actual filling values ​​are all greater than the preset filling values, so the additional tobacco is the filling module during the supplementary blending.

[0101] 6. Take 5 10g samples from the initial mixed tobacco, add 0.2g, 0.4g, 0.6g, 0.8g, and 1g of filling modules, respectively, record them as 1#, 2#, 3#, 4#, and 5# samples, mix them thoroughly, and test them. The supplementary filling values ​​are 8.8g / cm 3 、8.1g / cm 3 , 7.4g / cm 3 、6.8g / cm 3 , 6g / cm 3 Among them, the supplementary filling values ​​of 4# and 5# samples are close to the preset filling values, and it is determined that the mixing uniformity of 4# and 5# samples is the best. Considering the cost factor, the supplementary ratio corresponding to the 4# sample is finally selected as the target ratio of supplementary tobacco in the supplementary blending.

[0102] 7. Add filling modules according to the target ratio, that is, add 8kg of filling modules to 100kg of the mixture, put it into the leaf moistening machine for blending, and take samples at the initial, middle and final stages of blending. The average of the second actual filling value is 6.9g / cm 3 、6.8g / cm 3 、6.9g / cm 3 The difference between the three actual filling values ​​and the preset filling values ​​is within 1 g / cm 3 Within this time, the mixed shredded tobacco after supplementary blending is used as the final mixed shredded tobacco.

[0103] 8. Send the final mixed tobacco into the drying drum and dry it at 100℃ for 20s. After drying, send it into the flavoring drum and evenly spray the original tobacco flavor on the surface of the mixture. The flavoring amount is 0.5%~3%. After flavoring, place it in the storage cabinet for 2 days at a temperature of 23℃ and a humidity of 60% to allow the mixed tobacco to fully absorb the flavor and obtain the tobacco core material.

[0104] 9. Send the cigarette core material to the rolling process for cigarette rolling. Take samples for sensory evaluation at the early, middle and late stages of rolling. The specific evaluation results are shown in the following table:

[0105] The present application combines a flavor carrier module, a tobacco flavor module and a filling module to form a tobacco core material for heating cigarettes, and first classifies them for processing, and then combines them for processing and treatment, which can fully reflect the flavor characteristics of different modules, fully tap the quality characteristics of different modules, and make the obtained tobacco core material have a unique smoking taste.

[0106] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A method for preparing a core material for a heated cigarette, characterized in that: include: Preparation of tobacco shreds with different functional tobacco sheets; Fit the relationship function between the filling value of the mixture and all the functional tobacco, and determine the blending rules; Determining a preset filling value after tobacco shreds of all functions are blended according to a preset blending ratio based on the relationship function; When the tobacco shreds with all functions are actually blended, a first actual filling value of the initial mixed tobacco shreds obtained after the initial blending is detected; Supplementary blending is performed on the initial mixed shredded tobacco according to the first actual filling value, the preset filling value and the blending rule, so that the difference between the second actual filling value obtained after the supplementary blending and the preset filling value is within the preset value, and the mixed shredded tobacco after the supplementary blending is used as the final mixed shredded tobacco; The final mixed shredded tobacco is subjected to shred drying, flavoring and shred storage processes to obtain a tobacco core material for heated cigarettes.

2. The method for preparing the core material of the heated cigarette according to claim 1, characterized in that: Fitting the relationship between the mixture filling value and all functions of the tobacco, including: Blend tobacco shreds of all functions based on different blending ratios, and detect the filling values ​​of the mixtures corresponding to the different blending ratios; Curve fitting is performed based on all blending ratios and their mixture filling values ​​to obtain a relationship function with the blending ratio of all functional tobacco as the independent variable and the mixture filling value as the dependent variable.

3. The method for preparing the core material of the heated cigarette according to claim 1, characterized in that: The first actual filling value and the second actual filling value include actual filling values ​​obtained at the initial, middle and final stages of blending, respectively.

4. The method for preparing a core material for a heated cigarette according to claim 1, characterized in that: Tobacco sheets with different functions include tobacco aroma module, aroma carrying module and filling module; The main function of the tobacco aroma module is to provide tobacco aroma when smoking heated cigarettes, thereby increasing the tobacco aroma; The flavoring module is added with flavor essence or functional essence to provide external fragrance or improve sensory quality; The filling module is used to adjust the leaf group formula filling value.

5. The method for preparing the core material of the heated cigarette according to claim 4, characterized in that: The blending rules are: If the difference between the actual filling value and the preset filling value is greater than the preset value, the blending is uneven; In the case of uneven blending, if the actual filling value is greater than the preset filling value, the supplementary tobacco is the tobacco of the filling module, and the filling module is added during supplementary blending; if the actual filling value is less than the preset filling value, the supplementary tobacco is the tobacco of the flavor carrier module and the tobacco of the flavor module, and the ratio of the tobacco of the flavor carrier module and the tobacco of the flavor module added during supplementary blending is the same as the preset ratio.

6. The method for preparing the core material of the heated cigarette according to claim 4, characterized in that: The preparation of the fragrance carrying module specifically comprises: The first tobacco leaf raw material is crushed into coarse tobacco powder on a crusher and then sieved to obtain the first tobacco powder; Weigh the first initial material according to a first preset ratio, add water and shear and homogenize to form a slurry for use; the first initial material includes first tobacco powder, outer fiber, adhesive, smoke generating agent, auxiliary agent, flavor essence or functional essence; The standby slurry is fed into a headbox until the slurry planes are at the same height, and then dried; Scrape out the dried sample to form a sheet-like fragrance-carrying module.

7. The method for preparing the core material of the heated cigarette according to claim 4, characterized in that: The preparation of the filling module specifically comprises: The second tobacco leaf raw material is crushed into coarse tobacco powder on a crusher and then sieved to obtain the second tobacco powder; Weighing the second initial material according to the second preset ratio, and preparing the second initial material into a coating liquid with a suitable concentration; the second initial material includes a second smoke powder, an adhesive, and a smoke generating agent; The coating liquid is coated on the substrate, and after multi-stage positive and negative coating and drying, a sheet-shaped filling module is obtained.

8. The method for preparing the core material of the heated cigarette according to claim 4, characterized in that: The preparation of the tobacco flavor module specifically includes: Evenly stirring and kneading the third initial material; wherein the third initial material includes third tobacco powder, atomizer, fiber and tobacco flavor; Put the mass material into the roller press for multiple roller pressing; The roll-formed material is dried to obtain a sheet-shaped tobacco aroma module.

9. The method for preparing a core material for a heated cigarette according to claim 1, characterized in that: The temperature of the wire drying is 90℃~110℃, and the time of the wire drying is 10s~30s.

10. The method for preparing the core material of the heated cigarette according to claim 9, characterized in that: The amount of fragrance added is 0.5%~3%.

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