A method for preparing reconstituted tobacco leaf and products and uses thereof

Abstract

The application provides a preparation method of reconstituted tobacco leaf, and products and applications thereof, and the preparation method comprises the following steps: (1) mixing and stirring tobacco powder, inorganic filler, traditional Chinese medicine powder and flavoring components with water to obtain a granular viscous material; and (2) extruding, rolling and drying the viscous material to obtain the reconstituted tobacco leaf sheet. The preparation method combines the thick slurry method and the rolling method, has the advantages of uniform mixing of raw material components, high tensile strength, and easy dispersion of the reconstituted tobacco leaf after water is added, and the thick slurry method reconstituted tobacco leaf is subjected to secondary processing and is prepared into the rolling method reconstituted tobacco leaf, so that the difficulty that fiber materials are difficult to disperse due to a small amount of water added in the process of preparing the reconstituted tobacco leaf by the rolling method is overcome. The tensile strength of the reconstituted tobacco leaf prepared by the method is much higher than that of the reconstituted tobacco leaf prepared by the traditional rolling method, and the waste of the thick slurry method reconstituted tobacco leaf can be comprehensively utilized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tobacco, and particularly relates to a preparation method of reconstituted tobacco, a product thereof and application. BACKGROUND

[0002] The manufacture of reconstituted tobacco began in the 1950s. Compared with normal tobacco leaves, reconstituted tobacco has much less aroma and offensive odor, has the advantages of low cost, good filling property and reduction of tar content in smoke, and is widely used at home and abroad. At present, 20-30% of reconstituted tobacco can be used in cigarettes, and gradually becomes an important technical means for quality control of cigarette products. In the prior art, the preparation methods of reconstituted tobacco mainly include thick slurry method, roller pressing method and papermaking method. Papermaking method is mostly used in traditional cigarettes, and thick slurry method and papermaking method are used in heated cigarettes.

[0003] CN118556897A discloses a thick slurry method reconstituted tobacco and a preparation method and cigarette thereof, and relates to the field of reconstituted tobacco production. The raw material composition of the thick slurry method reconstituted tobacco is composed of tobacco powder, sugar, fiber and adhesive, and the thick slurry method reconstituted tobacco can be directly used as an auxiliary material in traditional cigarettes, has better filling property and processing resistance than traditional thick slurry method reconstituted tobacco, and has better sensory performance than papermaking method reconstituted tobacco. The thick slurry method reconstituted tobacco can also be used in heated non-combustion new-type tobacco products. Since the raw material of the thick slurry method reconstituted tobacco does not contain hydrophilic substances such as glycerol and propylene glycol, the production process is difficult to reduce, has good processing resistance, low cost and low storage requirement, and is a new type of dual-purpose thick slurry method reconstituted tobacco.

[0004] CN108065448A discloses a preparation method of roller pressing method heated non-combustion reconstituted tobacco and application thereof. The invention improves the process method on the basis of the roller pressing method process to prepare heated non-combustion reconstituted tobacco, solves the problem of adding a large proportion of atomizing agent, and uniformly disperses the atomizing agent in the tobacco material by using a food-grade adhesive. The prepared heated non-combustion reconstituted tobacco has improved and uniformly distributed atomizing agent content, a non-sticky surface, increased fiber content, increased tensile strength, good processing resistance, uniform release of smoke during smoking, good sensory effect and good simulation of the smoking experience of cigarettes.

[0005] However, the reconstituted tobacco generated by the roller pressing method has low strength, large specific gravity and low filling property, and the reconstituted tobacco generated by the thick slurry method has faster smoke generation speed but poorer aroma persistence than the roller pressing method, so that the quality of the product fluctuates or the sensory experience of consumers is affected in actual application. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application aims to provide a preparation method of reconstituted tobacco, a product thereof and application.

[0007] To achieve the object of the present application, the present application adopts the following technical solutions:

[0008] In a first aspect, the present application provides a preparation method of reconstituted tobacco, which comprises:

[0009] (1) mixing and stirring tobacco powder, inorganic filler, traditional Chinese medicine powder, and flavoring components with water to obtain a granular viscous material;

[0010] (2) extruding, rolling, and drying the viscous material to obtain the reconstituted tobacco sheet.

[0011] The preparation method of the present application combines the thick slurry method with the rolling method. The thick slurry method has the advantages of uniform mixing of raw material components, high tensile strength of the sheet, and easy dispersion of the reconstituted tobacco with water. The present application performs secondary processing on the thick slurry reconstituted tobacco and prepares the rolling method reconstituted tobacco, thereby overcoming the difficulty of dispersing fiber materials due to the small amount of water added during the preparation of the rolling method reconstituted tobacco. The prepared rolling method reconstituted tobacco has high tensile strength, which effectively improves the machine adaptability of the rolling method reconstituted tobacco. At the same time, by adding traditional Chinese medicine powder and flavoring components during the preparation process, the prepared reconstituted tobacco has stronger and purer aroma, and less odor and irritation.

[0012] Preferably, the mass ratio of the tobacco powder raw material, inorganic filler, traditional Chinese medicine powder, and flavoring components in step (1) is (5-10):(0.5-2):(1-3):(0.1-1).

[0013] wherein "5-10" can be 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, or 9.5, etc.

[0014] "0.5-2" can be 0.6, 0.8, 1.0, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, or 1.9, etc.

[0015] "1-3" can be 1.1, 1.3, 1.5, 1.7, 2, 2.1, 2.3, 2.5, 2.7, or 2.9, etc.

[0016] "0.1-1" can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, or 0.9, etc.

[0017] Preferably, the mass ratio of the tobacco powder and water is 1:(0.2-0.6), for example, it can be 1:0.22, 1:0.25, 1:0.28, 1:0.3, 1:0.32, 1:0.35, 1:0.38, 1:0.4, 1:0.45, 1:0.5, or 1:0.58, etc.

[0018] Preferably, the raw material of the tobacco powder comprises any one or a combination of at least two of thick slurry method reconstituted tobacco waste, tobacco stems or tobacco leaves.

[0019] Preferably, the raw material of the tobacco powder comprises thick slurry method reconstituted tobacco waste and tobacco leaves.

[0020] Preferably, the mixing in step (1) further comprises adding a smoking agent.

[0021] Preferably, the smoking agent comprises glycerol.

[0022] Preferably, the mass ratio of the tobacco powder to glycerol is (5-10):(0.1-1).

[0023] wherein "5-10" can be 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9 or 9.5, etc.

[0024] "0.1-1" can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc.

[0025] In the preparation method of the present application, the raw material of the tobacco powder is selected to be thick slurry method reconstituted tobacco waste and tobacco leaves, both of which are used in combination, which not only realizes comprehensive utilization of thick slurry method reconstituted tobacco waste, but also utilizes the characteristics of fiber and adhesive contained in the reconstituted tobacco waste, so as to make the tensile strength of the reconstituted tobacco higher and the flavor content of the tobacco raw material richer, and make the sensory better. In addition, for thick slurry method reconstituted tobacco waste, the present cigarette enterprises all adopt scrap processing, which causes resource waste. The raw material of the tobacco powder of the present application selects thick slurry method reconstituted tobacco waste, which not only saves resources, but also has the effect of turning waste into treasure.

[0026] Preferably, the inorganic filler is any one or a combination of at least two of bentonite, magnesium lithium silicate, nano-alumina or nano-silica.

[0027] Preferably, the inorganic filler is bentonite, magnesium lithium silicate, nano-alumina and nano-silica.

[0028] The flaky structure of the bentonite can improve the tensile strength of the reconstituted tobacco, and can prolong or block the path of environmental water molecules penetrating into the inside of the sheet, reduce the absorption of environmental water by the reconstituted tobacco, and is beneficial to the stability of the physical indicators of the reconstituted tobacco; the magnesium lithium silicate has thickening and thixotropy, and has strong adsorption capacity; the nano-aluminum oxide can make the mixture obtain good thickening effect at a low concentration; the nano-silicon oxide can improve the strength and flexibility of the reconstituted tobacco, and the four are used in combination, which can not only make the tobacco powder more uniformly dispersed, thereby enhancing the mechanical properties of the finally obtained reconstituted tobacco. In addition, when the reconstituted tobacco is used as a core material for a heating cigarette, the nano-aluminum oxide can improve the heat conduction performance of the reconstituted tobacco, and promote the improvement of the release rate of the smoke generating agent and the flavor components in the core material.

[0029] Preferably, the mass ratio of the bentonite, the magnesium lithium silicate, the nano-aluminum oxide and the nano-silicon oxide is (3-6):(0.1-1):(1-2):(0.1-1).

[0030] The "3-6" can be 3.2, 3.5, 3.8, 4, 4.2, 4.5, 4.8, 5, 5.2, 5.5 or 5.8, etc.

[0031] The first "0.1-1" can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc.

[0032] The "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.

[0033] The second "0.1-1" can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc.

[0034] Preferably, the traditional Chinese medicine powder includes any one or a combination of at least two of radix angelicae sinensis powder, lily powder or radix platycodi powder.

[0035] Preferably, the traditional Chinese medicine powder is radix angelicae sinensis powder, lily powder and radix platycodi powder.

[0036] In the present application, radix angelicae sinensis powder, lily powder and radix platycodi powder are selected and used in combination, which has the effect of nourishing the lung, can better increase the aroma of the reconstituted tobacco, reduce its odor and irritability, and improve the sensory quality of the reconstituted tobacco.

[0037] Preferably, the mass ratio of the radix angelicae sinensis powder, the lily powder and the radix platycodi powder is (1-2):(2-4):(1-2). The first "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.

[0038] The second "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.

[0039] The second "1-2" can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 or 1.9, etc.

[0040] Preferably, the flavoring component comprises tobacco extract and / or fruit powder.

[0041] Preferably, the flavoring component comprises tobacco extract and fruit powder.

[0042] In the present application, the use of tobacco extract and fruit powder in the flavoring component can not only improve the aroma and taste of the reconstituted tobacco sheet, but also the tobacco extract has a glue effect, which can further enhance the adhesion effect of other materials, thereby improving the mechanical properties of the final reconstituted tobacco.

[0043] Preferably, the tobacco extract is Henan tobacco extract.

[0044] The Henan tobacco extract can compensate for tobacco aroma, correct the taste, enhance the taste and improve the quality of tobacco.

[0045] Preferably, the fruit powder comprises Rosa roxburghii Tratt powder and / or grapefruit powder.

[0046] Preferably, the fruit powder is grapefruit powder.

[0047] Preferably, the mass ratio of the tobacco extract to the grapefruit powder is 1:(0.5-1.5), for example, it can be 1:0.6, 1:0.7, 1:0.8, 1:0.9, 1:1, 1:1.1, 1:1.2, 1:1.3 or 1:1.4, etc.

[0048] Preferably, the stirring in step (1) is carried out in two stages.

[0049] Preferably, the rotation speed of the first-stage stirring is 200-500 rpm, and the time is 5-30 min, for example, the rotation speed can be 220 rpm, 250 rpm, 280 rpm, 300 rpm, 320 rpm, 350 rpm, 400 rpm, 450 rpm or 480 rpm, etc., and the time can be 6 min, 10 min, 15 min, 20 min, 25 min or 28 min, etc.

[0050] Preferably, the first-stage stirring is to mix the tobacco powder raw material, inorganic filler and traditional Chinese medicine powder to obtain a mixture.

[0051] Preferably, the second stirring is performed at a speed of 1000-3000 rpm for 10-30 minutes, for example, the speed can be 1200 rpm, 1500 rpm, 1800 rpm, 2000 rpm, 2200 rpm, 2500 rpm or 2800 rpm, and the time can be 12 minutes, 15 minutes, 18 minutes, 20 minutes, 22 minutes, 25 minutes or 28 minutes, etc.

[0052] Preferably, the second stirring is performed by applying the mixture of the flavoring component and water to the mixture of the first stirring.

[0053] Preferably, the extrusion in step (2) is performed in a screw extruder.

[0054] Preferably, the pressure of the rolling is 50-100 kgf / cm 2 , for example, it can be 55 kgf / cm 2 , 60 kgf / cm 2 , 65 kgf / cm 2 , 70 kgf / cm 2 , 75 kgf / cm 2 , 80 kgf / cm 2 , 85 kgf / cm 2 , 90 kgf / cm 2 or 95 kgf / cm 2 , etc.

[0055] Preferably, the thickness of the product after the rolling is 0.1-0.3 mm, for example, it can be 0.12 mm, 0.15 mm, 0.18 mm, 0.2 mm, 0.22 mm, 0.25 mm or 0.28 mm, etc.

[0056] Preferably, the temperature of the drying is 70-130℃, for example, it can be 75℃, 80℃, 85℃, 90℃, 95℃, 100℃, 105℃, 110℃, 115℃, 120℃ or 125℃, etc.

[0057] Preferably, the moisture content of the reconstituted tobacco leaf after the drying is 3-11%, for example, it can be 3%, 4%, 5%, 6%, 7%, 8% or 10%, etc.

[0058] Specific point values within the above numerical ranges can be selected, which will not be repeated here.

[0059] In the second aspect, the present application provides a reconstituted tobacco leaf, which is prepared by the method of the first aspect.

[0060] In the third aspect, the present application provides a use of the reconstituted tobacco leaf of the second aspect in preparing a cigarette.

[0061] Preferably, the cigarette includes a traditional cigarette and a heat cigarette.

[0062] In the present application, the thick pulp method reconstituted tobacco waste can be reconstituted tobacco to which a propylene glycol, a propylene triol or the like smoke generating agent is added, and the thick pulp method reconstituted tobacco waste already contains a smoke generating agent, so that the thick pulp method reconstituted tobacco waste can be used for a heat cigarette without adding a smoke generating agent by secondary processing.

[0063] Compared with the prior art, the present application has the following beneficial effects:

[0064] The present application combines the thick pulp method with the roller pressing method preparation technology, utilizes the advantages of the thick pulp method reconstituted tobacco, such as uniform mixing of raw material components, high tensile strength of the reconstituted tobacco, and easy dispersion of the reconstituted tobacco after adding water, carries out secondary processing on the thick pulp method reconstituted tobacco, and prepares roller pressing method reconstituted tobacco, thereby overcoming the difficulty that the fiber material is difficult to disperse due to a small amount of water added in the process of preparing reconstituted tobacco by the roller pressing method. The reconstituted tobacco prepared by the method has a tensile strength much higher than that of the traditional roller pressing method reconstituted tobacco, and the thick pulp method reconstituted tobacco waste can be comprehensively utilized. DETAILED DESCRIPTION

[0065] The technical solutions of the present application are further described below through specific embodiments. Those skilled in the art should understand that the embodiments are only used to help understand the present application and should not be regarded as specific limitations on the present application.

[0066] The thick pulp method reconstituted tobacco waste used in the following examples is provided by Jiangsu China Tobacco Industrial Co., Ltd.

[0067] Tobacco extract (Yuxian extract) is purchased from Hubei Xinyu Hong Biological Medicine Technology Co., Ltd.

[0068] The remaining raw materials can be used as long as they are purchased from regular dealers.

[0069] Example 1

[0070] The present embodiment provides a preparation method of reconstituted tobacco, which comprises:

[0071] (1) mixing and stirring tobacco powder (mass ratio of 4:1 of thick pulp method reconstituted tobacco waste and tobacco leaf), inorganic filler, Chinese medicine powder, flavoring component and water (0.4 times the mass of tobacco powder) at a mass ratio of 8:1:1.5:0.5 to obtain a granular viscous material, and the stirring is divided into two stages: the first stage of stirring is to stir the tobacco powder raw material, inorganic filler and Chinese medicine powder at 400 rpm for 20 min to obtain a mixture, and the second stage of stirring is to add the mixture of the flavoring component and water to the mixture of the first stage of stirring and continue to stir at 2000 rpm for 20 min to obtain a granular material;

[0072] The inorganic filler is bentonite, magnesium lithium silicate, nano-alumina and nano-silicon oxide with a mass ratio of 5:0.5:1.5:0.5;

[0073] The traditional Chinese medicine powder is radix codonopsis powder, lily powder and Sichuan fritillaria powder with a mass ratio of 1:2:1;

[0074] The flavoring component is Yu tobacco extract and grapefruit powder with a mass ratio of 1:1;

[0075] (2) The granular viscous material is added into a spiral extruder to obtain an extruded material;

[0076] (3) The extruded material is rolled into a reconstituted tobacco leaf with a thickness of 0.2 mm under a pressure of 80 kgf / cm 2 , and then dried at 120 ℃ to obtain a reconstituted tobacco leaf with a water content of 7%.

[0077] Example 2

[0078] The present embodiment provides a preparation method of a reconstituted tobacco leaf, which comprises:

[0079] (1) 10 parts of tobacco powder (5 parts of thick slurry method reconstituted tobacco leaf waste and 1 part of tobacco leaf), 2 parts of inorganic filler, 1 part of traditional Chinese medicine powder, 1 part of flavoring component and 0.5 times the mass of the tobacco powder of water are mixed and stirred to obtain a granular viscous material, and the stirring is divided into two stages: in the first stage, the tobacco powder raw material, the inorganic filler and the traditional Chinese medicine powder are stirred at 300 rpm for 25 min to obtain a mixture, and in the second stage, the mixture of the flavoring component and the water is added to the mixture obtained in the first stage and stirred at 1500 rpm for 30 min to obtain a granular viscous material;

[0080] The inorganic filler is bentonite, magnesium lithium silicate, nano-alumina and nano-silicon oxide with a mass ratio of 6:1:1:1;

[0081] The traditional Chinese medicine powder is radix codonopsis powder, lily powder and Sichuan fritillaria powder with a mass ratio of 1:3:1;

[0082] The flavoring component is Yu tobacco extract and grapefruit powder with a mass ratio of 2:1;

[0083] (2) The granular viscous material is added into a spiral extruder to obtain an extruded material;

[0084] (3) The extruded material is rolled into a reconstituted tobacco leaf with a thickness of 0.15 mm under a pressure of 100 kgf / cm 2 , and then dried at 110 ℃ to obtain a reconstituted tobacco leaf with a water content of 5%.

[0085] Example 3

[0086] The embodiment provides a preparation method of reconstituted tobacco leaves, and the preparation method comprises the following steps:

[0087] (1) mixing and stirring tobacco powder (thick pulp method reconstituted tobacco waste and tobacco leaves with a mass ratio of 3:1), inorganic fillers, traditional Chinese medicine powder, flavoring components and water (0.2 times the mass of the tobacco powder) with a mass ratio of 5:0.5:3:0.3 to obtain a granular viscous material, and the stirring is divided into two stages: the first stage of stirring is to stir the tobacco powder raw material, the inorganic fillers and the traditional Chinese medicine powder at 500 rpm for 10 min to obtain a mixture, and the second stage of stirring is to add the mixture of the flavoring components and the water into the mixture obtained in the first stage of stirring and continue to stir at 2500 rpm for 15 min until the granular state is reached;

[0088] wherein the inorganic fillers are bentonite, magnesium lithium silicate, nano-aluminum oxide and nano-silicon oxide with a mass ratio of 3:0.3:2:0.3;

[0089] the traditional Chinese medicine powder is radix codonopsis powder, lily powder and beibei powder with a mass ratio of 1:4:1;

[0090] the flavoring components are Yu tobacco extract and pomelo powder with a mass ratio of 1:1.5;

[0091] (2) adding the granular viscous material into a spiral extruder to obtain an extruded material;

[0092] (3) rolling the extruded material into a sheet with a thickness of 0.25 mm at 60 kgf / cm 2 , and then drying at 80 DEG C to obtain reconstituted tobacco leaves with a water content of 8%.

[0093] Embodiment 4

[0094] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from the embodiment 1 only in that the inorganic fillers in the step (1) are magnesium lithium silicate, nano-aluminum oxide and nano-silicon oxide with a mass ratio of 1:3:1, and the addition amount of the inorganic fillers is kept unchanged, and the other steps are consistent with the embodiment 1.

[0095] Embodiment 5

[0096] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from the embodiment 1 only in that the inorganic fillers in the step (1) are bentonite, nano-aluminum oxide and nano-silicon oxide with a mass ratio of 5:1.5:0.5, and the addition amount of the inorganic fillers is kept unchanged, and the other steps are consistent with the embodiment 1.

[0097] Embodiment 6

[0098] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from that of the embodiment 1 only in that the inorganic filler in step (1) is bentonite, magnesium lithium silicate and nano silicon oxide with a mass ratio of 10:1:1, the addition amount of the inorganic filler is kept unchanged, and the remaining steps are consistent with those of the embodiment 1.

[0099] Embodiment 7

[0100] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from that of the embodiment 1 only in that the inorganic filler in step (1) is bentonite, magnesium lithium silicate and nano aluminum oxide with a mass ratio of 10:1:3, the addition amount of the inorganic filler is kept unchanged, and the remaining steps are consistent with those of the embodiment 1.

[0101] Embodiment 8

[0102] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from that of the embodiment 1 only in that the traditional Chinese medicine powder in step (1) is lily powder and Kunming fungus powder with a mass ratio of 2:1, the addition amount of the traditional Chinese medicine powder is kept unchanged, and the remaining steps are consistent with those of the embodiment 1.

[0103] Embodiment 9

[0104] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from that of the embodiment 1 only in that the traditional Chinese medicine powder in step (1) is radix codonopsis powder and Kunming fungus powder with a mass ratio of 1:1, the addition amount of the traditional Chinese medicine powder is kept unchanged, and the remaining steps are consistent with those of the embodiment 1.

[0105] Embodiment 10

[0106] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from that of the embodiment 1 only in that the traditional Chinese medicine powder in step (1) is radix codonopsis powder and lily powder with a mass ratio of 1:2, the addition amount of the traditional Chinese medicine powder is kept unchanged, and the remaining steps are consistent with those of the embodiment 1.

[0107] Embodiment 11

[0108] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from that of the embodiment 1 only in that the flavoring component in step (1) is Henan tobacco extract, and the addition amount of the flavoring component is kept unchanged, and the remaining steps are consistent with those of the embodiment 1.

[0109] Embodiment 12

[0110] The embodiment provides a preparation method of reconstituted tobacco leaves, which is different from that of the embodiment 1 only in that the flavoring component in step (1) is grapefruit powder, and the addition amount of the flavoring component is kept unchanged, and the remaining steps are consistent with those of the embodiment 1.

[0111] Embodiment 13

[0112] The embodiment provides a preparation method of reconstituted tobacco leaves, which is only different from the embodiment 1 in that glycerol is added in the mixing in the step (1), and the adding amount of the glycerol is consistent with that of the flavoring component, and the rest steps are consistent with those of the embodiment 1.

[0113] Embodiment 14

[0114] The embodiment provides a preparation method of reconstituted tobacco leaves, which is only different from the embodiment 1 in that the preparation raw materials and the use amount of the reconstituted tobacco leaves are consistent with those of the embodiment 1 except that the thick slurry method reconstituted tobacco leaf waste is not contained, and the reconstituted tobacco leaves are prepared by the rolling method according to the embodiment 1.

[0115] Comparative Example 1

[0116] The comparative example provides a preparation method of reconstituted tobacco leaves, the preparation raw materials and the use amount of the reconstituted tobacco leaves are consistent with those of the embodiment 1 except that the thick slurry method reconstituted tobacco leaf waste is not contained (if the thick slurry method reconstituted tobacco leaf waste is added, the product cannot be formed after being prepared by the thick slurry method), and the reconstituted tobacco leaves are prepared by the thick slurry method.

[0117] The preparation method of the reconstituted tobacco leaves by the thick slurry method is as follows: the tobacco powder, the inorganic filler and the traditional Chinese medicine powder are mixed, then the mixture of the flavoring component and water is added, the mixture is coated on the annular steel belt and dried to obtain the reconstituted tobacco leaves by the thick slurry method. In order to realize the preparation effect of the reconstituted tobacco leaves by the thick slurry method, the water adding amount is increased, the mass ratio of the tobacco powder to water is 1:4, and a certain amount of wood pulp fiber and CMC are added, and the mass ratio of the tobacco powder to the wood pulp fiber and CMC is 25:1:1.

[0118] Comparative Example 2

[0119] The comparative example provides a preparation method of reconstituted tobacco leaves, the preparation method is only different from the embodiment 1 in that the preparation raw materials do not include the traditional Chinese medicine powder, and the reduced amount is supplemented by the flavoring component, and the rest steps are consistent with those of the embodiment 1.

[0120] Comparative Example 3

[0121] The comparative example provides a preparation method of reconstituted tobacco leaves, the preparation method is only different from the embodiment 1 in that the preparation raw materials do not include the flavoring component, and the reduced amount is supplemented by the traditional Chinese medicine powder, and the rest steps are consistent with those of the embodiment 1.

[0122] Test Example 1

[0123] The reconstituted tobacco leaves in the embodiment 1-14 and the comparative examples 1-3 are subjected to the tensile strength test, wherein the test is performed according to GB / T12914-2008 Paper and Paperboard-Determination of Tensile Strength.

[0124] Table 1

[0125]

[0126]

[0127] From Table 1, it can be seen that the reconstituted tobacco sheet obtained by the method of the present application has better tensile strength than the products obtained by the rolling method of Example 14 or the thick paste method of Comparative Example 1, and thus has better processability;

[0128] From Examples 4-7, it can be seen that the selection of inorganic fillers has an effect on the mechanical processing performance of the reconstituted tobacco sheet;

[0129] From Example 12, it can be seen that the use of tobacco extract in the flavoring ingredient can improve the cohesiveness during the preparation of the reconstituted tobacco sheet, and thus make the mechanical performance of the final product better.

[0130] From Example 14, it can be seen that when the preparation raw material does not contain thick paste method reconstituted tobacco waste, the tensile strength of the final product is significantly worse;

[0131] From Comparative Example 1, it can be seen that the tensile strength of the reconstituted tobacco obtained by the traditional thick paste method is also significantly worse.

[0132] Test Example 2

[0133] Sensory evaluation experiment

[0134] Evaluation method: After cutting the reconstituted tobacco sheets of Examples 1-14 and Comparative Examples 1-3 into shreds, using the same cigarette material, 7 evaluators used the sensory evaluation method according to the national standard GB 5606.4-2005 Cigarettes Part 4: Sensory Technical Requirements, and the test standard referred to Table 2. The final result was recorded by averaging the scores of all evaluators, and the results are shown in Table 3.

[0135] Table 2

[0136]

[0137] Table 3

[0138]

[0139]

[0140] From Table 3, it can be seen that the reconstituted tobacco sheets of Examples 1-3 have full and rich aroma, mellow smoke, no obvious odor, weak irritation and dryness, and clean aftertaste. This is because the fiber material of the sheet prepared by the specific method of the present application is more evenly dispersed, thus burning more evenly, reducing the odor, and the fullness and purity of the aroma are improved by the flavoring ingredient and the traditional Chinese medicine powder.

[0141] From the examples 8-10 and the comparative example 2, it can be seen that the addition of the Chinese medicine powder can significantly improve the aroma of the reconstituted tobacco leaf, reduce the irritation and the odor, and the radix codonopsis powder, the lily powder and the bulbus fritillariae cirrhosae powder in the Chinese medicine powder have a synergistic effect on the above effects;

[0142] From the examples 11-12 and the comparative example 3, it can be seen that the addition of the flavoring component, and the synergistic cooperation of the tobacco extract and the grapefruit powder in the synergistic component can make the aroma of the sheet more thick, and the dry feeling lower.

[0143] The applicant declares that the present application is illustrated by the above examples, a preparation method of a reconstituted tobacco leaf, and the product and the application thereof, but the present application is not limited to the above examples, that is, it does not mean that the present application must rely on the above examples to be implemented. It should be understood by those skilled in the art that any improvement of the present application, equivalent replacement of each raw material of the product of the present application, addition of auxiliary ingredients, selection of specific modes, etc. fall within the protection scope and the disclosure scope of the present application.

[0144] The above describes the preferred embodiments of the present application in detail, but the present application is not limited to the specific details in the above embodiments, and within the technical concept scope of the present application, the technical solutions of the present application can be variously modified, and these simple modifications all belong to the protection scope of the present application.

[0145] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined by any suitable method without contradiction, and in order to avoid unnecessary repetition, the present application will not further describe various possible combination methods.

Claims

1. A method of preparing a reconstituted tobacco leaf, characterized by, The preparation method comprises: (1) mixing and stirring the tobacco powder, inorganic filler, traditional Chinese medicine powder, and flavoring component with water to obtain a granular viscous material; (2) extruding, rolling, and drying the viscous material to obtain the reconstituted tobacco leaf; The raw material of the tobacco powder comprises thick slurry method reconstituted tobacco leaf waste and tobacco leaf; The inorganic filler is bentonite, magnesium lithium silicate, nano-alumina, and nano-silica; The traditional Chinese medicine powder is radix codonopsis powder, lily powder, and bulbus fritillariae cirrhosae powder; The flavoring component comprises tobacco extract and fruit powder.

2. The method of preparing reconstituted tobacco leaf according to claim 1, characterized in that, The mass ratio of the tobacco powder raw material, inorganic filler, traditional Chinese medicine powder, and flavoring component in step (1) is (5-10):(0.5-2):(1-3):(0.1-1).

3. The method of preparing reconstituted tobacco leaf according to claim 1, characterized in that, The mass ratio of the tobacco powder and water is 1:(0.2-0.6).

4. The method of preparing reconstituted tobacco leaf according to claim 1, characterized in that, The mixing in step (1) further comprises adding a smoking agent.

5. The method of preparing reconstituted tobacco leaf according to claim 4, characterized in that, The smoking agent comprises glycerol.

6. The method of preparing reconstituted tobacco leaf according to claim 5, characterized in that, The mass ratio of the tobacco powder and glycerol is (5-10):(0.1-1).

7. The method of preparing reconstituted tobacco leaf according to claim 1, characterized in that, The mass ratio of the bentonite, magnesium lithium silicate, nano-alumina, and nano-silica is (3-6):(0.1-1):(1-2):(0.1-1).

8. The method of preparing reconstituted tobacco leaf according to claim 1, characterized in that, The mass ratio of the radix codonopsis powder, lily powder, and bulbus fritillariae cirrhosae powder is (1-2):(2-4):(1-2).

9. The method of making reconstituted tobacco leaf of Claim 1, wherein, The tobacco extract is Henan tobacco extract.

10. The method of producing reconstituted tobacco leaf according to claim 1, characterized in that, The fruit powder comprises Rosa roxburghii Tratt powder and / or grapefruit powder.

11. The method of producing reconstituted tobacco leaf according to claim 10, characterized in that, The fruit powder is grapefruit powder.

12. The method of producing reconstituted tobacco leaf according to claim 11, characterized in that, The mass ratio of the tobacco extract and grapefruit powder is 1:(0.5-1.5).

13. The method of making reconstituted tobacco leaf according to claim 1, wherein, The stirring in step (1) is divided into two stages.

14. The method of producing reconstituted tobacco leaf according to claim 13, characterized in that, The first-stage stirring is at a speed of 200-500 rpm for 5-30 min.

15. The method of producing reconstituted tobacco leaf according to claim 14, characterized in that, The second-stage stirring is at a speed of 1000-3000 rpm for 10-30 min.

16. The method of producing a reconstituted tobacco leaf according to claim 1, wherein The extrusion in step (2) is performed in a screw extruder.

17. The method of producing reconstituted tobacco leaf according to claim 1, wherein The pressure of the roll press is 50-100 kgf / cm 2 .

18. The method of claim 17, wherein the reconstituted tobacco leaf is prepared by, The thickness of the product after rolling is 0.1-0.3 mm.

19. The method of making reconstituted tobacco leaf of claim 1 wherein, The drying temperature is 70-130℃.

20. The method of producing reconstituted tobacco leaf according to claim 19, wherein The water content of the reconstituted tobacco leaf after drying is 3-11%.

21. A reconstituted tobacco leaf, characterised in that, The reconstituted tobacco leaf is prepared by the method of any one of claims 1-20.

22. Use of the reconstituted tobacco leaf of claim 21 in preparing cigarettes.

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