CN112385876A - Preparation method of reconstituted tobacco with high bulk - Google Patents
Preparation method of reconstituted tobacco with high bulk Download PDFInfo
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- CN112385876A CN112385876A CN202011394022.2A CN202011394022A CN112385876A CN 112385876 A CN112385876 A CN 112385876A CN 202011394022 A CN202011394022 A CN 202011394022A CN 112385876 A CN112385876 A CN 112385876A
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 110
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 110
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000605 extraction Methods 0.000 claims abstract description 65
- 239000000758 substrate Substances 0.000 claims abstract description 53
- 238000000576 coating method Methods 0.000 claims abstract description 52
- 239000011248 coating agent Substances 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 239000007787 solid Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 239000002893 slag Substances 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 238000007603 infrared drying Methods 0.000 claims abstract description 12
- 238000004537 pulping Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 35
- 239000000843 powder Substances 0.000 claims description 10
- 244000166124 Eucalyptus globulus Species 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 230000001953 sensory effect Effects 0.000 abstract description 6
- 230000000391 smoking effect Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 description 17
- 238000005096 rolling process Methods 0.000 description 10
- 235000019504 cigarettes Nutrition 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000007790 solid phase Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000007602 hot air drying Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 206010013911 Dysgeusia Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B5/00—Stripping tobacco; Treatment of stems or ribs
- A24B5/16—Other treatment of stems or ribs, e.g. bending, chopping, incising
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
- A24B15/241—Extraction of specific substances
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention provides a preparation method of reconstituted tobacco with high bulk, which comprises the following steps: (1) adding water into the tobacco raw material, and performing extraction treatment; (2) after extraction treatment is finished, solid-liquid separation is carried out to obtain solid extraction slag and extraction liquid; (3) pulping the solid extraction residues, mixing the solid extraction residues with external fiber pulp, and feeding the mixture into a head box forming net to prepare a wet substrate; removing impurities from the extract, and concentrating to obtain coating liquid; (4) conveying the wet substrate to a dry net of a tunnel type far infrared drying box for drying treatment to obtain a dry substrate; (5) and spraying the coating liquid on a dry substrate, drying and slicing to obtain the reconstituted tobacco with high bulk. The preparation method of the reconstituted tobacco with high bulk can improve the bulk of the reconstituted tobacco, is beneficial to absorption of coating liquid, improves the coating rate and further improves the smoking sensory quality of the reconstituted tobacco.
Description
Technical Field
The invention belongs to the technical field of paper-making reconstituted tobacco production, and particularly relates to a preparation method of reconstituted tobacco with high bulk.
Background
The paper-making method reconstituted tobacco is a sheet-shaped or thread-shaped regenerated product prepared by taking waste tobacco stems, tobacco powder, low-grade tobacco leaves and the like in the cigarette production process as raw materials through the same flow as paper making. The additive is added into cigarettes, so that on one hand, the cost of the cigarettes can be properly reduced; on the other hand, the physical properties and chemical components of the cigarette can be adjusted to a certain degree, and the tar content is reduced, so that the quality of the cigarette is improved. The preparation process comprises the steps of paper-making reconstituted tobacco, namely, tobacco stems, tobacco powder and low-grade tobacco leaves are used as raw materials, the extracted raw materials and extraction liquid are separated after soaking and extraction, fibers are added into the extracted raw materials and then pulping is carried out, a paper machine is used for reducing the water content of a substrate through two-stage squeezing by a method similar to paper making, a yankee cylinder and a long-net multi-cylinder are used for drying to prepare the substrate, meanwhile, the extraction liquid is concentrated to form concentrated liquid, essence and spice are added and then coated on the formed substrate, and the reconstituted tobacco is prepared after drying and slicing. Bulk is an index indicating the degree of density of a paper sheet, and it refers to the volume of a certain weight of paper, and is numerically the reciprocal of the tightness, and is calculated by the method of bulk = thickness/basis weight. The bulk is an important index in the reconstituted tobacco industry and is related to the coating effect in the coating process.
Chinese patent CN201610052665.6 discloses a high-bulk paper-making reconstituted tobacco and preparation and application thereof. The reconstituted tobacco comprises a tobacco raw material, wood long fibers and wood short fibers. The reconstituted tobacco is prepared by adopting a method of mixing and copying tobacco raw materials, wood long fibers and wood short fibersAnd the Z-direction arrangement of the short fibers in the water filtering process is combined, so that the aims of effectively improving the bulk and the coating rate, improving the filler retention rate and the product yield, reducing the production cost, improving the sufficient combustion degree of the product and reducing the CO release amount under the condition of fully ensuring the tensile strength of the substrate and the paper machine operability are fulfilled. The patent improves the bulk of the reconstituted tobacco by blending the appropriate proportion of the long and short fibers in the reconstituted tobacco. Chinese patent CN202010469245.4 discloses a method for manufacturing reconstituted tobacco by a paper-making method with high bulk and high air permeability, which is characterized by comprising the following steps: (1) respectively adding water into the tobacco raw materials for extraction; (2) and (3) performing solid-liquid separation on the extracted slurry by a double-screw pulp extruder, a high-concentration disc mill and a single-screw squeezer respectively, mixing the solid-phase slurry, feeding the mixed solid-phase slurry into the medium-concentration disc mill, and feeding the mixed solid-phase slurry into a slurry pool for later use: (3) preparing a reconstituted tobacco coating liquid by the steps of removing impurities, concentrating, alcoholizing and feeding the collected liquid phase extract after extraction; (4) after the medium-concentration disc grinding in the step (2), the solid-phase slurry entering the slurry pool passes through a fine grinding machine and then enters a high-concentration slurry stabilizing box, a filler is added in the process, and finally the solid-phase slurry enters a pulp flowing box for forming, and then the solid-phase slurry enters two-stage pressing and papermaking to obtain a reconstituted tobacco substrate; (5) coating the coating liquid in the step (3) on a reconstituted tobacco substrate according to a proportion (calculated according to absolute dry slurry), and preparing a reconstituted tobacco finished product through drying in an oven, perfuming in a drying cylinder, slicing and the like; the dosage of the coating liquid is 37.5 +/-1% (to the dosage of an oven-dried finished product); the ration of the finished product of the coated reconstituted tobacco is 100 +/-5 g/m2Bulk greater than 2.35cm3(ii)/g, air permeability is more than 400 ℃. The patent improves the bulk of the reconstituted tobacco by optimizing the technological parameters of pulping and papermaking.
Although the methods adopted by the two patents can improve the bulk index of the reconstituted tobacco to a certain extent, the base sheet is prepared by a method similar to papermaking in the production of the reconstituted tobacco, the tobacco slurry is rolled twice after being formed, the thickness of the wet base sheet is greatly reduced under the action of pressure, and finally the coating liquid is coated in a rolling coating mode, so that the thickness of the reconstituted tobacco is further reduced, and the bulk index of the finished reconstituted tobacco is difficult to effectively improve. On the other hand, the excessively compact substrate affects the permeability of the coating liquid, reduces the coating rate of the reconstituted tobacco, and further reduces the quality of the reconstituted tobacco. Therefore, the development of a preparation method capable of effectively increasing the bulk of the reconstituted tobacco is urgently needed.
Disclosure of Invention
The invention aims to provide a preparation method of reconstituted tobacco with high bulk aiming at the defects in the prior art so as to solve at least one of the defects.
In order to solve the technical problems, the invention adopts the following technical scheme:
a preparation method of reconstituted tobacco with high bulk comprises the following steps:
(1) adding water into the tobacco raw material, and performing extraction treatment;
(2) after the extraction treatment is finished, carrying out solid-liquid separation to obtain solid extraction slag and extraction liquid;
(3) pulping the solid extraction residues, mixing the solid extraction residues with external fiber pulp, and sending the mixture into a head box forming net to prepare a wet substrate; removing impurities from the extract liquor, and concentrating to prepare coating liquid;
(4) conveying the wet substrate to a dry net of a tunnel type far infrared drying box for drying treatment to obtain a dry substrate;
(5) and spraying the coating liquid on the dry substrate, drying and slicing to obtain the reconstituted tobacco with high bulk.
Preferably, the quantitative amount of the dry substrate is 55-65 g/m2。
Preferably, the feed-liquid ratio of the extraction treatment is 1: (4-6), the extraction temperature is 60-80 ℃, and the extraction time is 30-50 min.
Preferably, the mass ratio of the solid extraction slag to the external fiber pulp is (5-8): 1.
Preferably, the pulp degree of the solid extraction slag after pulping is 30 +/-2 DEG SR, and the pulp degree of the outer fiber pulp is 45 +/-2 DEG SR.
Preferably, the outer fiber pulp is eucalyptus pulp fiber.
Preferably, the coating rate of the spraying liquid on the dry substrate is 39-42%.
Preferably, the bulk of the reconstituted tobacco with high bulk is not less than 3.6 cm3/g。
Preferably, the tobacco raw material is a mixed material of tobacco stems and tobacco powder.
Preferably, the mass ratio of the tobacco stems to the tobacco powder is 1: 1.
Compared with the prior art, the invention has the beneficial effects that:
compared with a yankee cylinder or long net multi-cylinder drying process used in a traditional paper-making method, the far infrared drying mode can avoid the adverse effect of twice rolling on the bulk of the reconstituted tobacco, can improve the bulk of the reconstituted tobacco, is simpler in process, saves the occupied space of equipment and improves the production efficiency. In addition, the invention adopts a far infrared drying mode to volatilize the moisture in the wet substrate from inside to outside, so that a porous structure is formed in the wet substrate, the absorption of subsequent coating liquid is facilitated, the coating rate is improved, the smoking sensory quality of the reconstituted tobacco is further improved, and the aspects of the aroma, the harmony, the pungent smell, the aftertaste and the like of the reconstituted tobacco can be obviously improved. Moreover, the porous structure in the wet substrate is formed after physical heating, no additional chemical substance is introduced, and the quality of the substrate is not influenced. On the other hand, compared with the rolling coating, the coating liquid is sprayed in a spraying mode, so that the adverse effect of rolling on the bulk of the reconstituted tobacco can be further reduced, and the bulk of the reconstituted tobacco is further improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
FIG. 1 is a schematic view of a preparation process of a reconstituted tobacco with high bulk according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a spraying device of a method for preparing reconstituted tobacco with high bulk according to an embodiment of the invention;
fig. 3 is a schematic view of the arrangement of the spray heads of fig. 1 distributed over a coating transition net.
In the figure, 1, a forming net, 2, a slurry guide roller, 3, a tunnel type far infrared drying box, 4, a coating transition net, 5, a coating spray head, 6, a hot air oven, 7, a batching tank, 8 and a delivery pump.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It is to be understood that the processing equipment or apparatus not specifically identified in the following examples is conventional in the art.
Furthermore, it is to be understood that one or more method steps mentioned in the present invention does not exclude that other method steps may also be present before or after the combined steps or that other method steps may also be inserted between these explicitly mentioned steps, unless otherwise indicated; moreover, unless otherwise indicated, the numbering of the various method steps is merely a convenient tool for identifying the various method steps, and is not intended to limit the order in which the method steps are arranged or the scope of the invention in which the invention may be practiced, and changes or modifications in the relative relationship may be made without substantially changing the technical content.
Example 1
The embodiment 1 of the invention provides a preparation method of reconstituted tobacco with high bulk, which comprises the following steps:
(1) mixing tobacco stems and tobacco powder raw materials according to a mass ratio of 1:1, adding water into the mixed tobacco raw materials, and performing extraction treatment, wherein the material-liquid ratio is 1:4, the extraction temperature is 60 ℃, and the extraction time is 50 min;
(2) after extraction treatment is finished, solid-liquid separation is carried out to obtain solid extraction slag and extraction liquid;
(3) pulping the solid extraction slag until the pulp size is 30 +/-2 DEG SR, mixing the solid extraction slag with eucalyptus pulp with the pulp size of 45 +/-2 DEG SR according to the mass ratio of 5:1, and feeding the mixture into a head box forming net to prepare a wet substrate; removing impurities from the extract, and concentrating to obtain coating liquid;
(4) guiding the wet substrate on the forming net to the dry net of the tunnel type far infrared drying box by adopting a slurry guiding roller to perform drying treatment to obtain a dry substrate (the preparation flow is shown in figure 1), wherein the quantitative amount of the dry substrate is 58 +/-2 g/m2；
(5) And (3) spraying the coating liquid onto a dry substrate on a coating transition net by adopting a spraying device (shown in figure 2), wherein the coating rate is 41.7%, and slicing after hot air drying to obtain the reconstituted tobacco with high bulk. The spraying equipment comprises a dosing tank, a delivery pump and a plurality of coating nozzles positioned above a coating transition net.
Example 2
The embodiment 2 of the invention provides a preparation method of reconstituted tobacco with high bulk, which comprises the following steps:
(1) mixing tobacco stems and tobacco powder raw materials according to a mass ratio of 1:1, adding water into the mixed tobacco raw materials, and performing extraction treatment, wherein the material-liquid ratio is 1:5, the extraction temperature is 70 ℃, and the extraction time is 40 min;
(2) after extraction treatment is finished, solid-liquid separation is carried out to obtain solid extraction slag and extraction liquid;
(3) pulping the solid extraction slag until the pulp size is 30 +/-2 DEG SR, mixing the solid extraction slag with eucalyptus pulp with the pulp size of 45 +/-2 DEG SR according to the mass ratio of 6:1, and feeding the mixture into a head box forming net to prepare a wet substrate; removing impurities from the extract, and concentrating to obtain coating liquid;
(4) guiding the wet substrate on the forming net to a dry net of a tunnel type far infrared drying box by adopting a slurry guiding roller to perform drying treatment to obtain a dry substrate, wherein the ration of the dry substrate is 60 +/-2 g/m2；
(5) And spraying the coating liquid on the dry substrate on the coating transition net by adopting spraying equipment, wherein the coating rate is 40.8%, and slicing after hot air drying to obtain the reconstituted tobacco with high bulk.
Example 3
The embodiment 3 of the invention provides a preparation method of reconstituted tobacco with high bulk, which comprises the following steps:
(1) mixing tobacco stems and tobacco powder raw materials according to a mass ratio of 1:1, adding water into the mixed tobacco raw materials, and performing extraction treatment, wherein the material-liquid ratio is 1:5, the extraction temperature is 80 ℃, and the extraction time is 30 min;
(2) after extraction treatment is finished, solid-liquid separation is carried out to obtain solid extraction slag and extraction liquid;
(3) pulping the solid extraction slag until the pulp size is 30 +/-2 DEG SR, mixing the solid extraction slag with eucalyptus pulp with the pulp size of 45 +/-2 DEG SR according to the mass ratio of 7:1, and feeding the mixture into a head box forming net to prepare a wet substrate; removing impurities from the extract, and concentrating to obtain coating liquid;
(4) guiding the wet substrate on the forming net to a dry net of a tunnel type far infrared drying box by adopting a slurry guiding roller to perform drying treatment to obtain a dry substrate, wherein the ration of the dry substrate is 62 +/-2 g/m2；
(5) And spraying the coating liquid on a dry substrate on the coating transition net by adopting spraying equipment, wherein the coating rate is 39.4%, and slicing after hot air drying to obtain the reconstituted tobacco with high bulk.
Example 4
The embodiment 4 of the invention provides a preparation method of reconstituted tobacco with high bulk, which comprises the following steps:
(1) mixing tobacco stems and tobacco powder raw materials according to a mass ratio of 1:1, adding water into the mixed tobacco raw materials, and performing extraction treatment, wherein the material-liquid ratio is 1:6, the extraction temperature is 80 ℃, and the extraction time is 40 min;
(2) after extraction treatment is finished, solid-liquid separation is carried out to obtain solid extraction slag and extraction liquid;
(3) pulping the solid extraction slag until the pulp size is 30 +/-2 DEG SR, mixing the solid extraction slag with eucalyptus pulp with the pulp size of 45 +/-2 DEG SR according to the mass ratio of 8:1, and feeding the mixture into a head box forming net to prepare a wet substrate; removing impurities from the extract, and concentrating to obtain coating liquid;
(4) guiding the wet substrate on the forming net to a dry net of a tunnel type far infrared drying box by adopting a slurry guiding roller to perform drying treatment to obtain a dry substrate, wherein the ration of the dry substrate is 60 +/-2 g/m2；
(5) And spraying the coating liquid on the dry substrate on the coating transition net by adopting spraying equipment, wherein the coating rate is 40.2%, and slicing after hot air drying to obtain the reconstituted tobacco with high bulk.
Comparative example 1
It is different from example 1 in that the wet substrate in step (4) is dehydrated and dried by a conventional paper making method, i.e., two-time rolling, and the coating liquid is applied by roll coating in step (5), and other processes are the same.
Comparative example 2
It is different from example 1 in that the wet substrate in step (4) is dewatered and dried by a conventional papermaking method, i.e., two-time rolling, and other processes are the same.
The reconstituted tobacco prepared in the embodiments 1-4, the comparative examples 1 and the comparative examples 2 is placed in a constant temperature and humidity box to be balanced for 24 hours, cigarettes are respectively prepared after the bulk indexes are detected, sensory smoking evaluation is carried out on the aroma, miscellaneous gas and irritation indexes of the cigarettes, and the evaluation results are shown in table 1.
As seen from the table 1, compared with the comparative examples 1 and 2, the reconstituted tobacco prepared by the preparation method of the reconstituted tobacco with high bulk is remarkably improved in bulk index, and the lifting rate can reach 29.9%; meanwhile, compared with cigarettes prepared by a conventional paper-making method, cigarettes prepared by the reconstituted tobacco prepared by the high-bulk reconstituted tobacco preparation method have better smoking sensory quality, and the improvement of the bulk index of the reconstituted tobacco is beneficial to the improvement of the sensory smoking quality of the reconstituted tobacco.
Compared with a double-rolling drying process of a yankee cylinder or a long net multi-cylinder, which is used in the traditional papermaking method, the far infrared drying mode can avoid the adverse effect of double rolling on the bulk of the reconstituted tobacco, can improve the bulk of the reconstituted tobacco, and has the advantages of simpler process, equipment occupation space saving and production efficiency improvement. In addition, the invention adopts a far infrared drying mode to volatilize the moisture in the wet substrate from inside to outside, so that a porous structure is formed in the wet substrate, the absorption of subsequent coating liquid is facilitated, the coating rate is improved, the smoking sensory quality of the reconstituted tobacco is further improved, and the aspects of the aroma, the harmony, the pungent smell, the aftertaste and the like of the reconstituted tobacco can be obviously improved. Moreover, the porous structure in the wet substrate is formed after physical heating, no additional chemical substance is introduced, and the quality of the substrate is not influenced. On the other hand, compared with the rolling coating, the coating liquid is sprayed in a spraying mode, so that the adverse effect of rolling on the bulk of the reconstituted tobacco can be further reduced, and the bulk of the reconstituted tobacco is further improved.
The protective scope of the present invention is not limited to the above-described embodiments, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. The preparation method of the reconstituted tobacco with high bulk is characterized by comprising the following steps:
(1) adding water into the tobacco raw material, and performing extraction treatment;
(2) after the extraction treatment is finished, carrying out solid-liquid separation to obtain solid extraction slag and extraction liquid;
(3) pulping the solid extraction residues, mixing the solid extraction residues with external fiber pulp, and sending the mixture into a head box forming net to prepare a wet substrate; removing impurities from the extract liquor, and concentrating to prepare coating liquid;
(4) conveying the wet substrate to a dry net of a tunnel type far infrared drying box for drying treatment to obtain a dry substrate;
(5) and spraying the coating liquid on the dry substrate, drying and slicing to obtain the reconstituted tobacco with high bulk.
2. The method for preparing reconstituted tobacco with high bulk according to claim 1, wherein the dry substrate has a basis weight of 55-65 g/m2。
3. The method for preparing reconstituted tobacco with high bulk according to claim 1, wherein the feed-liquid ratio of the extraction treatment is 1: (4-6), the extraction temperature is 60-80 ℃, and the extraction time is 30-50 min.
4. The method for preparing the reconstituted tobacco with high bulk according to claim 1, wherein the mass ratio of the solid extraction residues to the outer fiber pulp is (5-8): 1.
5. The method for preparing reconstituted tobacco with high bulk according to claim 4, wherein the pulp degree of the solid extraction residues after pulping is 30 +/-2 ° SR, and the pulp degree of the outer fiber pulp is 45 +/-2 ° SR.
6. The method of claim 5, wherein the outer fiber pulp is eucalyptus pulp fiber.
7. The method for preparing reconstituted tobacco with high bulk according to claim 2, wherein the coating rate of the spraying liquid on the dry substrate is 39-42%.
8. The method of claim 7, wherein the bulk of the reconstituted tobacco is not less than 3.6 cm3/g。
9. The method for preparing reconstituted tobacco with high bulk according to claim 1, wherein the tobacco raw material is a mixed material of tobacco stems and tobacco powder.
10. The method for preparing reconstituted tobacco with high bulk according to claim 1, wherein the mass ratio of the tobacco stems to the tobacco powder is 1: 1.
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| CN110403226A (en) * | 2019-08-29 | 2019-11-05 | 普维思信（北京）科技有限公司 | The technique and system of the high-intensitive tobacco-containing material that homogenizes of extruded type composite molding production |
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| US3467109A (en) * | 1967-06-12 | 1969-09-16 | Lorillard Co Inc P | Method and apparatus for making reconstituted tobacco |
| CN103211286A (en) * | 2012-08-22 | 2013-07-24 | 湖北中烟工业有限责任公司 | Method for improving bulk of paper-making reconstituted tobacco through adopting sodium bicarbonate |
| CN103919271A (en) * | 2014-04-18 | 2014-07-16 | 湖北中烟工业有限责任公司 | Method for improving calcium carbonate retention rate through adding calcium carbonate before pulp beating |
| CN105167155A (en) * | 2015-08-10 | 2015-12-23 | 中国海诚工程科技股份有限公司 | Production method and device for tobacco sheets |
| CN105167156A (en) * | 2015-08-25 | 2015-12-23 | 湖北中烟工业有限责任公司 | Tobacco fragment treatment method for paper-making reconstituted tobacco |
| CN108308693A (en) * | 2018-04-09 | 2018-07-24 | 上海烟草集团有限责任公司 | A kind of preparation method of papermaking-method reconstituted tobaccos and improve method of the paper-process reconstituted tobacco to coating fluid absorbability |
| CN110403226A (en) * | 2019-08-29 | 2019-11-05 | 普维思信（北京）科技有限公司 | The technique and system of the high-intensitive tobacco-containing material that homogenizes of extruded type composite molding production |
| CN111345495A (en) * | 2020-03-10 | 2020-06-30 | 普维思信(深圳)科技有限公司 | Method for producing high-strength homogenized tobacco material by thick pulp papermaking method |
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