Reconstituted tobacco, manufacturing method thereof and low-temperature tobacco

Abstract

The invention relates to the technical field of reconstituted tobacco preparation, and discloses reconstituted tobacco, a manufacturing method thereof and low-temperature tobacco. The manufacturing method of the reconstituted tobacco comprises the steps that preparation raw materials are provided and comprise 3-6 parts of first part fibers, 3-6 parts of second part fibers, 40-50 parts of first part tobacco powder, 2-6 parts of second part tobacco powder, 10-20 parts of water, 13-17 parts of a smoke agent and 2-5 parts of glue; uniformly mixing and stirring the first part of fiber, the first part of smoke powder, water, a smoke agent and glue to obtain intermediate slurry; uniformly mixing the intermediate slurry with a second part of fiber and a second part of tobacco powder to obtain rolling slurry; carrying out rolling treatment on the rolling slurry to obtain tobacco leaves; and the second part of fibers are powdery fibers. The reconstituted tobacco prepared by the preparation method has high bulk.

Description

Technical Field

[0001] This invention relates to the field of reconstituted tobacco preparation technology, and more specifically, to reconstituted tobacco, its manufacturing method, and low-temperature tobacco. Background Technology

[0002] In the field of tobacco manufacturing technology, reconstituted tobacco is an important raw material, primarily used to increase tobacco yield and improve tobacco quality. The main production methods for reconstituted tobacco include papermaking, slurry processing, dry processing, and roll pressing. Among these, roll pressing is widely used due to its high production efficiency and low cost. However, due to its inherent process characteristics, roll pressing often results in a lower bulk, affecting the filling properties of the finished reconstituted tobacco. To address this issue, existing technologies mainly involve altering the production process parameters of roll pressing, such as adjusting the rolling pressure, to improve the bulk. Additionally, some technologies involve adding certain chemical substances to improve the bulk. However, these existing technologies often have several problems in practical application. For example: First, adjusting process parameters has limited effect on improving bulk, especially for roll pressing reconstituted tobacco used in low-temperature tobacco, where the adjustment range is even more limited due to the large amount of smoking agents it contains. Second, adding chemical substances may have potential health effects on smokers. Therefore, how to effectively improve the bulk of reconstituted tobacco leaves by roller pressing within a limited range of production process parameters and without introducing external chemical substances is an urgent problem to be solved in this field.

[0003] Analysis of the entire system of reconstituted tobacco by roll pressing reveals that, due to its special process, roll pressing requires strong rolling pressure during preparation to ensure that the rolled product can be well shaped, thereby obtaining stable quantity and thickness, and producing homogeneous reconstituted tobacco products by roll pressing.

[0004] The current mainstream method of reconstituted tobacco using the roller pressing method mainly involves mixing tobacco powder with other auxiliary materials, adding adhesive liquid and stirring. After stirring to a certain extent, the mixture is directly subjected to roller pressing to produce qualified reconstituted tobacco using the roller pressing method.

[0005] The product produced in this process is dense and naturally has a lower loft. In traditional cigarettes, this can be improved by adding appropriate combustion aids to enhance combustion performance and meet usage requirements. However, when used as filler material for low-temperature cigarettes (mostly heated between 300 and 400°C), the characteristics of heated tobacco products—which rely on heating to deliver nicotine, flavoring substances, and other active ingredients from the tobacco to the smoker's mouth for inhalation, thus avoiding or reducing the production of harmful substances such as tar during combustion—mean that adding combustion aids is no longer sufficient. Furthermore, during the heating process, the excessive density of the product prevents the full release of flavoring substances, inevitably affecting the final smoking quality.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide reconstituted tobacco leaves, a method for manufacturing the same, and low-temperature tobacco, with the aim of improving the problem of low fluffiness in reconstituted tobacco leaves produced by existing manufacturing methods.

[0008] This invention is implemented as follows:

[0009] In a first aspect, the present invention provides a method for manufacturing reconstituted tobacco leaves, comprising:

[0010] The preparation raw materials are provided, which include, by mass percentage: 3-6 parts of first-part fiber, 3-6 parts of second-part fiber, 40-50 parts of first-part tobacco powder, 2-6 parts of second-part tobacco powder, 10-20 parts of water, 10-15 parts of smoke-generating agent and 2-5 parts of adhesive;

[0011] The first part of fiber, the first part of tobacco powder, water, smoke generator and glue are mixed and stirred evenly to obtain intermediate slurry;

[0012] The intermediate slurry is mixed evenly with the second part of fiber and the second part of tobacco powder to obtain the roller-pressed slurry.

[0013] Tobacco leaves are obtained by roller pressing the slurry.

[0014] The second part of the fiber is powdery fiber.

[0015] In an optional embodiment, the method of uniformly mixing the intermediate slurry with the second portion of fiber and the second portion of tobacco powder includes:

[0016] Add the second part of tobacco powder to the intermediate slurry and mix well, then add the second part of fiber and mix well.

[0017] Alternatively, add the second part of fiber to the intermediate slurry and mix well, then add the second part of tobacco powder and mix well.

[0018] Alternatively, add the second part of tobacco powder and the second part of fiber to the intermediate slurry and mix them evenly.

[0019] In an optional embodiment, the intermediate slurry is mixed with the second part of tobacco powder and the second part of fiber by stirring, with a stirring speed of 500 to 1200 rpm and a stirring time of 5 to 40 minutes.

[0020] In an optional embodiment, the particle size of the first part of the tobacco powder and the second part of the tobacco powder is less than or equal to 150 μm.

[0021] In an optional embodiment, the particle size of the powdered fibers is 160–180 μm.

[0022] In an optional embodiment, the first portion of the fiber is selected from at least one of filamentous fibers and powdered fibers.

[0023] In an optional embodiment, the smoke-generating agent comprises 10-12 parts glycerin and 3-5 parts propylene glycol;

[0024] Optionally, the gum is carboxymethyl cellulose;

[0025] Optionally, the raw materials may also include 1 to 2 parts of stabilizer.

[0026] Optionally, the stabilizer is selected from at least one of magnesium stearate and potassium stearate.

[0027] Secondly, the present invention provides a reconstituted tobacco leaf, which is produced by a manufacturing method as described in any of the foregoing embodiments.

[0028] Thirdly, the present invention provides a low-temperature tobacco, comprising reconstituted tobacco leaves as described in the foregoing embodiments.

[0029] The present invention has the following beneficial effects:

[0030] The manufacturing method provided in this invention, based on the traditional roll pressing manufacturing of reconstituted tobacco leaves, removes a portion of the fibers added during the pulping and defiberization process. After the entire pulp system is stirred, the removed portion of fibers, in the form of powdered fibers, is added to the pulp along with a small amount of tobacco powder for stirring. This results in a loose system formed between the added powdered fibers and tobacco powder and the previously completed pulp system. That is, the added powdered fibers and tobacco powder are nested within the already stirred pulp during the stirring process. At the same time, since the overall dryness of the added powdered fibers and tobacco powder is lower than that of the already stirred pulp, the liquid in the pulp system tends to continuously penetrate into the powdered fibers and tobacco powder. Roll pressing the pulp with this characteristic can improve the looseness of the tobacco leaves while ensuring that the aroma, color, and other properties of the resulting tobacco leaves are not affected. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0032] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0033] This invention primarily focuses on effectively adjusting the internal structure of reconstituted tobacco leaves produced by the roll pressing process, thereby significantly increasing the bulk and allowing for the full release of aroma compounds. Improving bulk essentially means making the entire leaf more fluffy. Analysis of the overall composition of the roll-pressed product reveals the need to introduce a low-density raw material with a fluffy structure. Simultaneously, this raw material is used to appropriately adjust the internal structure of the roll-pressed tobacco leaves, resulting in a more fluffy interior. Through analysis, the inventors concluded that only fibers possess this characteristic; therefore, adjustments to the entire roll-pressed tobacco system must begin with understanding the fibers.

[0034] In the traditional reconstituted tobacco rolling process, fibers are added primarily through separate defiberization or defiberization with the adhesive before being added to the reconstituted tobacco rolling mixer. This method allows the fibers to fully decompose and bind with hydrogen bonds in water molecules, thereby improving the tensile strength and other material properties of the reconstituted tobacco to meet the processing requirements. However, increasing the amount of fiber added only improves strength and has limited effect on improving bulk. Furthermore, excessive fiber addition may increase the woody smell of the product, affecting its quality.

[0035] Based on the above, the following solution of the present invention is proposed:

[0036] This invention provides a method for manufacturing reconstituted tobacco leaves, including the following raw materials:

[0037] The preparation raw materials are provided, which include, by mass percentage: 3-6 parts of first part fiber, 3-6 parts of second part fiber, 40-50 parts of first part tobacco powder, 2-6 parts of second part tobacco powder, 10-20 parts of water, 13-17 parts of smoke-generating agent and 2-5 parts of glue;

[0038] The first part of fiber, the first part of tobacco powder, water, smoke generator and glue are mixed and stirred evenly to obtain intermediate slurry;

[0039] The intermediate slurry is mixed evenly with the second part of fiber and the second part of tobacco powder to obtain the roller-pressed slurry.

[0040] Tobacco leaves are obtained by roller pressing the slurry.

[0041] The second part of the fiber is powdery fiber.

[0042] The manufacturing method provided in this invention, based on the traditional roll pressing manufacturing of reconstituted tobacco leaves, removes a portion of the fibers added during the pulping and defiberization process. After the entire pulp system is stirred, the removed portion of fibers, in the form of powdered fibers, is added to the pulp along with a small amount of tobacco powder for stirring. This results in a loose system formed between the added powdered fibers and tobacco powder and the previously completed pulp system. That is, the added powdered fibers and tobacco powder are nested within the already stirred pulp during the stirring process. At the same time, since the overall dryness of the added powdered fibers and tobacco powder is lower than that of the already stirred pulp, the liquid in the pulp system tends to continuously penetrate into the powdered fibers and tobacco powder. Roll pressing the pulp with this characteristic can improve the looseness of the tobacco leaves while ensuring that the aroma, color, and other properties of the resulting tobacco leaves are not affected.

[0043] It should be noted that adding the second part of fiber after pulping without adding tobacco powder can also improve the bulk to some extent, but the appearance of the reconstituted tobacco leaves obtained in this way is significantly different from that of reconstituted tobacco leaves obtained by traditional pulping methods. Adding a small amount of tobacco powder after pulping can serve a transitional function, enabling the method provided by this invention to produce reconstituted tobacco leaves with high bulk and an appearance close to that of reconstituted tobacco leaves obtained by traditional methods by adding a portion of the second part of fiber after pulping.

[0044] Optionally, the method of uniformly mixing the intermediate slurry with the second fiber and the second tobacco powder includes:

[0045] Add the second part of tobacco powder to the intermediate slurry and mix well, then add the second part of fiber and mix well.

[0046] Alternatively, add the second part of fiber to the intermediate slurry and mix well, then add the second part of tobacco powder and mix well.

[0047] Alternatively, add the second part of tobacco powder and the second part of fiber to the intermediate slurry and mix them evenly.

[0048] Optionally, to avoid the excessive water absorption of the second part of tobacco powder and powdered fiber affecting the improvement of bulk, the roller pressing operation should be carried out as soon as possible after the roller pressing slurry is prepared. The time from obtaining the roller pressing slurry to carrying out the roller pressing operation should preferably not exceed 4 hours.

[0049] If the second batch of tobacco powder and powdered fiber is over-mixed with the intermediate slurry, the added tobacco powder and powdered fiber may absorb too much water, resulting in a less significant increase in bulk. Therefore, to ensure a more significant improvement in bulk, the intermediate slurry can optionally be mixed with the second batch of tobacco powder and the second batch of fiber by stirring at a speed of 500–1500 rpm for 5–40 minutes.

[0050] Optionally, the particle size of the first part of the tobacco powder and the second part of the tobacco powder is less than or equal to 150 μm.

[0051] Optionally, the particle size of the powdered fibers is 160–180 μm.

[0052] The above-mentioned particle size of tobacco powder and powdered fiber can better improve the bulk of tobacco leaves while ensuring that the reconstituted tobacco leaves have the appearance of natural tobacco.

[0053] Optionally, the first portion of fibers in the initial mixing is selected from at least one of filamentous fibers and powdered fibers.

[0054] Optionally, the smoke-generating agent includes 10-12 parts glycerin and 3-5 parts propylene glycol.

[0055] Optionally, the adhesive is sodium carboxymethyl cellulose.

[0056] Optionally, the raw materials may also include 1 to 2 parts of stabilizer.

[0057] Furthermore, the stabilizer is selected from at least one of magnesium stearate and potassium stearate.

[0058] The reconstituted tobacco leaf provided in this embodiment of the invention is produced using the manufacturing method provided in this embodiment of the invention. Therefore, the reconstituted tobacco leaf has a high bulk thickness.

[0059] The low-temperature tobacco provided in this invention includes reconstituted tobacco leaves. Because this low-temperature tobacco includes reconstituted tobacco leaves with a higher looseness, it can better promote the volatilization of aroma substances in tobacco, while reducing the tobacco consumption rate per cigarette, increasing the final product yield, and better promoting quality improvement, cost reduction, and efficiency enhancement.

[0060] Example 1

[0061] The preparation materials are provided, which, by mass percentage, include: 43 parts of first-part smoke powder, 4 parts of first-part fiber (powdered fiber), 35 parts of the prepared adhesive mixture, 4 parts of second-part fiber, and 4 parts of second-part smoke powder. The adhesive mixture is prepared by emulsification and shearing of 17 parts water, 14 parts smoke generator (including 11 parts glycerol and 3 parts propylene glycol), 3 parts sodium carboxymethyl cellulose, and 1 part magnesium stearate stabilizer. First, 43 parts of smoke powder and 4 parts of fiber are added to a mixer and mixed at 500 rpm for 1 minute. Then, the remaining 35 parts of the adhesive mixture are added and mixed at 1200 rpm for 15 minutes to obtain an intermediate slurry.

[0062] Add 4 parts of the second part of fiber (powdered fiber) to the intermediate slurry and mix at 800 rpm for 3 minutes; then add 4 parts of the second part of tobacco powder and continue mixing for 2 minutes to obtain the roller-pressed slurry.

[0063] The slurry was immediately subjected to roller pressing, with the roller pressing process parameters referring to the general roller pressing method for tobacco leaf preparation. The quantitative target was 210±10g, and tobacco leaves were obtained.

[0064] Example 2

[0065] This embodiment is basically the same as Embodiment 1, except that: 4 parts of the second part of fiber are added to the intermediate slurry and mixed and stirred at 800 rpm for 5 minutes; then 4 parts of the second part of tobacco powder are added and stirred for another 5 minutes to obtain the roller-pressed slurry, and the total stirring time is extended by 5 minutes.

[0066] Example 3

[0067] This embodiment is basically the same as Embodiment 1, except that: 4 parts of the second part of tobacco powder are added to the intermediate slurry and mixed and stirred at 800 rpm for 3 minutes; then 4 parts of the second part of fiber (powdered fiber) are added and stirred for another 2 minutes to obtain the roller-pressed slurry.

[0068] Example 4

[0069] This embodiment is basically the same as Embodiment 1, except that:

[0070] The raw materials, by mass percentage, include: 40 parts of first-part smoke powder, 6 parts of first-part fiber (powdered fiber), 32 parts of the prepared adhesive mixture, 6 parts of second-part fiber, and 6 parts of second-part smoke powder. The adhesive mixture is prepared by emulsification and shearing of 10 parts water, 15 parts smoke-generating agent (including 10 parts glycerol and 5 parts propylene glycol), 5 parts sodium carboxymethyl cellulose, and 2 parts magnesium stearate as a stabilizer.

[0071] Example 5

[0072] This embodiment is basically the same as Embodiment 1, except that:

[0073] The raw materials, by mass percentage, include: 50 parts of first-part smoke powder, 3 parts of first-part fiber (powdered fiber), 34 parts of the prepared adhesive mixture, 2 parts of second-part fiber, and 2 parts of second-part smoke powder. The adhesive mixture is prepared by emulsification and shearing of 18 parts water, 13 parts smoke-generating agent (including 10 parts glycerol and 3 parts propylene glycol), 2 parts sodium carboxymethyl cellulose, and 1 part stabilizer (magnesium stearate).

[0074] Example 6

[0075] This embodiment is basically the same as Embodiment 1, except that:

[0076] The raw materials, by mass percentage, include: 40 parts of first-part smoke powder, 3 parts of first-part fiber (powdered fiber), 44 parts of the prepared adhesive mixture, 3 parts of second-part fiber, and 3 parts of second-part smoke powder. The adhesive mixture is prepared by emulsification and shearing of 20 parts water, 17 parts smoke-generating agent (including 12 parts glycerol and 5 parts propylene glycol), 5 parts sodium carboxymethyl cellulose, and 2 parts magnesium stearate stabilizer.

[0077] Comparative Example 1

[0078] The raw material formulation of this comparative example is the same as that of Example 1, except that:

[0079] The preparation process is as follows:

[0080] First, add 47 parts of tobacco powder and 8 parts of powdered fiber to the mixer and mix at 500 rpm for 1 minute. Then add the remaining 35 parts of the adhesive mixture and mix at 1200 rpm for 15 minutes. Reduce the mixing speed to 800 rpm and continue mixing for 5 minutes to obtain the roller-pressed slurry.

[0081] The slurry was immediately subjected to roller pressing, with the roller pressing process parameters referring to the general roller pressing method for tobacco leaf preparation. The quantitative target was 210±10g, and tobacco leaves were obtained.

[0082] Comparative Example 2

[0083] The raw material formulation of this comparative example is the same as that of Example 1, except that:

[0084] The preparation process is as follows:

[0085] First, add 47 parts of tobacco powder and 4 parts of the first part of fiber to the mixer and mix at 500 rpm for 1 minute. Then add the remaining 35 parts of the adhesive mixture and mix at 1200 rpm for 15 minutes to obtain the intermediate slurry.

[0086] Add 4 parts of the second fiber to the intermediate slurry and mix at 800 rpm for 5 minutes.

[0087] The slurry was immediately subjected to roller pressing, with the roller pressing process parameters referring to the general roller pressing method for tobacco leaf preparation. The quantitative target was 210±10g, and tobacco leaves were obtained.

[0088] Comparative Example 3

[0089] The raw material formulation of this comparative example is the same as that of Example 1, except that:

[0090] The preparation process is as follows:

[0091] First, add 43 parts of the first part of tobacco powder and 8 parts of fiber to the mixer and mix at 500 rpm for 1 minute. Then add the remaining 35 parts of the adhesive mixture and mix at 1200 rpm for 15 minutes to obtain the intermediate slurry.

[0092] Add 4 parts of the second part of the tobacco powder to the intermediate slurry and mix at 800 rpm for 5 minutes;

[0093] The slurry was immediately subjected to roller pressing, with the roller pressing process parameters referring to the general roller pressing method for tobacco leaf preparation. The quantitative target was 210±10g, and tobacco leaves were obtained.

[0094] Experimental Example

[0095] The quantitative values ​​and thickness of tobacco leaves prepared in each embodiment and comparative example were measured. The measurement was repeated three times for each experimental group, and the average value was taken. The looseness was calculated and recorded in Table 1.

[0096] Table 1. Detection results of each embodiment and comparative example.

[0097]

[0098] Comparing the various embodiments with Comparative Example 1, it can be seen that the looseness of the tobacco leaves obtained by the various embodiments of the present invention is higher than that of Comparative Example 1. This indicates that the present invention adjusts the second part of the fiber and tobacco powder, which was originally used for direct mixing and pulping, to be added after pulping, which can significantly improve the looseness of the obtained tobacco leaves. Comparing Example 1 with Comparative Example 1, it can be seen that the looseness is increased by 16.82%.

[0099] Comparing Example 3 with Example 1, the bulk thickness of Example 3 is slightly worse, but significantly better than that of Comparative Example 1, indicating that adding powdered fiber first and then adding tobacco powder in the second part can better improve the bulk thickness.

[0100] Comparing Comparative Example 2 with Example 1, the bulk of Comparative Example 2 was worse, but better than that of Comparative Example 1, indicating that the addition of only powdered fiber in the second part has a certain effect on improving bulk.

[0101] Compared with Comparative Example 1, Comparative Example 3 showed an improvement in bulk thickness, but its appearance was far less similar to that of natural tobacco leaves than that of Example 1 and Comparative Example 2. This further illustrates that the best way to improve the bulk thickness of reconstituted tobacco leaves by the roll pressing method is to reserve some powdered fiber and tobacco powder for later addition.

[0102] In summary, the manufacturing method provided by the embodiments of the present invention solves at least the following problems:

[0103] 1) How to effectively improve the bulk of reconstituted tobacco leaves by roller pressing under limited process parameter adjustments;

[0104] 2) How to avoid adding extra chemicals that could negatively impact suction quality and increase potential risks;

[0105] 3) How to increase the thickness of reconstituted tobacco leaves by roller pressing without affecting their aroma, color and other properties, so that the tobacco leaves are closer to natural tobacco leaves;

[0106] 4) Technical issues such as how to reduce the implementation cost of the technical solution for improving the thickness of reconstituted tobacco leaves by roller pressing, making it more suitable for large-scale application.

[0107] In summary, the preparation method provided by this invention has at least the following beneficial effects: First, because the preparation method provided by this invention can effectively improve the bulk of the reconstituted tobacco leaves produced by the roll pressing method, thereby improving the filling performance of the resulting low-temperature reconstituted tobacco leaves, this is of great significance to the tobacco manufacturing industry. Furthermore, the effective improvement in the bulk of the reconstituted tobacco leaves allows for better volatilization of aroma substances, while also reducing the single-cigarette tobacco consumption rate during the cigarette manufacturing process, thus playing a significant role in cost reduction, efficiency improvement, and quality enhancement. Therefore, this method is particularly important for the manufacture of low-temperature cigarettes. Second, this technical solution does not change the production process parameters or add any additional chemical substances, therefore it will not affect other properties of the roll-pressed reconstituted tobacco leaves, nor will it have any potential impact on the health of smokers, making it highly valuable for application in the field of tobacco processing. Finally, the implementation cost of this technical solution is relatively low, which is conducive to large-scale application. This provides a new method for improving the bulk of roll-pressed reconstituted tobacco leaves during the preparation process.

[0108] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for manufacturing reconstituted tobacco, characterized in that, include: The preparation raw materials are provided, which include, by mass parts: 3-6 parts of first part fiber, 3-6 parts of second part fiber, 40-50 parts of first part tobacco powder, 2-6 parts of second part tobacco powder, 10-20 parts of water, 13-17 parts of smoke-generating agent and 2-5 parts of adhesive; The first portion of fiber, the first portion of tobacco powder, the water, the smoking agent, and the adhesive are mixed and stirred evenly to obtain an intermediate slurry. The intermediate slurry is mixed evenly with the second part of fiber and the second part of tobacco powder to obtain roller-pressed slurry; The roller-pressed slurry is subjected to roller pressing to obtain tobacco leaves; The second part of the fiber is powdered fiber.

2. The manufacturing method according to claim 1, characterized in that, The method of uniformly mixing the intermediate slurry with the second portion of fiber and the second portion of tobacco powder includes: Add the second part of tobacco powder to the intermediate slurry and mix evenly, then add the second part of fiber and mix evenly. Alternatively, the second part of the fiber can be added to the intermediate slurry and mixed evenly, and then the second part of the tobacco powder can be added and mixed evenly. Alternatively, the second portion of tobacco powder and the second portion of fiber can be added to the intermediate slurry and mixed evenly.

3. The manufacturing method according to claim 1, characterized in that, The intermediate slurry is mixed with the second part of tobacco powder and the second part of fiber by stirring, with a stirring speed of 500-1500 rpm and a stirring time of 5-30 min.

4. The manufacturing method according to claim 1, characterized in that, The particle size of the first part of the tobacco powder and the second part of the tobacco powder is less than or equal to 150 μm.

5. The manufacturing method according to claim 1, characterized in that, The particle size of the powdered fiber is 160–180 μm.

6. The manufacturing method according to claim 1, characterized in that, The first portion of fibers is selected from at least one of filamentous fibers and powdered fibers.

7. The manufacturing method according to claim 1, characterized in that, The smoke-generating agent comprises 10-12 parts glycerin and 3-5 parts propylene glycol; Optionally, the adhesive is sodium carboxymethyl cellulose.

8. The manufacturing method according to claim 1, characterized in that, The raw materials used in the preparation also include 1 to 2 parts of stabilizer; Optionally, the stabilizer is selected from at least one of magnesium stearate and potassium stearate.

9. A reconstituted tobacco leaf, characterized in that, It is prepared by the manufacturing method described in any one of claims 1 to 8.

10. A low-temperature smoke, characterized in that, Including the reconstituted tobacco as described in claim 9.

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