CN111345495A - Method for producing high-strength homogenized tobacco material by thick pulp papermaking method - Google Patents
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Abstract
A method for producing high-strength homogenized tobacco material by thick pulp papermaking method comprises washing tobacco stems with water, mixing with wood fiber, and performing enzyme treatment; then mixing and grinding the tobacco stems and the wood fibers to obtain homogeneous mixed pulp; then adding tobacco powder, a smoke agent and an adhesive into the mixed pulp, and mixing the pulp to form a tobacco substrate; continuously extruding and molding the tobacco base material on a stainless steel belt, carrying out primary drying by using hot steam, and then demoulding by using a scraper; spraying atomized liquid vertically on the surface, close to the non-steel belt, of the demoulded formed tobacco substrate to perform color equalization treatment; and drying for the second time by using drying equipment, removing wrinkles, shaping and rolling. The tobacco raw materials are finely processed, and the integrated processes of extrusion molding, grading drying, color homogenizing treatment and the like are adopted, so that the prepared tobacco material has the advantages of large capacity of the atomizing agent, high proportion of tobacco components, large smoke release amount of a product, high release stability, good processing resistance and the like.
Description
Technical Field
The invention belongs to the field of a preparation method of a novel heating non-combustion tobacco product.
Background
With the acceleration of global smoking control movement, the tobacco industry has entered a new period of seeking revolution and breakthrough, and further has promoted and accelerated the research and development of novel tobacco products such as heating non-combustion cigarettes, electronic cigarettes, buccal cigarettes, and the like. The heating non-combustion cigarette is an important component in the novel tobacco products.
At present, a plurality of modes for producing the material of the tobacco products which are not burnt by heating are available, such as a dry method, a rolling method, a paper-making method, a thick pulp method and the like, and the reconstituted tobacco type material which is prepared by the methods and is not burnt by heating has larger performance difference. The reconstituted tobacco by the traditional rolling method is easy to be broken and has poor processing performance. In the dry method, fibers such as wood pulp and the like are added in the production process to improve the physical properties of the product, and the addition of the wood pulp fibers can bring negative effects such as heavy wood miscellaneous gas and the like to the sensory quality of the product. The traditional paper-making reconstituted tobacco has the defects of low aerosol load, heavy wood gas, obvious paper quality, spicy taste and the like, and also has defects in the aspects of physical properties such as softness, tensile strength and the like. The reconstituted tobacco by the thick paste method is a material which has better comprehensive performance and is not burnt during heating. The existing thick pulp method is that when the base sheet is formed, the tobacco raw material powder, adhesive and smoke agent are mixed in the pulp, then the pulp is extruded and formed, because various components are uniformly distributed on the surface layer and the inner layer of the base sheet, the thickness and quantitative stability, heat conduction uniformity and smoke effect are good. However, the existing thick slurry method still has the problems that the processing resistance and the suction quality can not be simultaneously considered due to the treatment of raw materials, the combination of raw materials and the like.
In any production method, the core of the reconstituted tobacco processing technology is always tobacco component recombination and homogeneous forming, and better processing resistance and easy continuous production need to be realized to the greatest extent while the smoke quantity is met, so that the better industrialization prospect is achieved.
At present, researches on processing technology, raw material formula and the like of tobacco leaves reproduced by a thick paste method special for cigarettes without burning are more. For example, chinese patent No. 201610870853.X discloses a reconstituted tobacco suitable for heating a non-combustion type cigarette, which uses tobacco materials such as flue-cured tobacco, burley tobacco or aromatic tobacco with high price, does not use tobacco stems, and has high production cost. The Chinese patent with the application number of 201811608858.0 discloses a thick liquid method tobacco sheet forming device for a laboratory, which keeps the position of a steel belt fixed when the device is used for manufacturing the thick liquid method tobacco sheet, finishes sheet manufacturing by moving a forming seat, is convenient for controlling the size of the sheet and changing the specification of the sheet, but can not be used for continuous production, can only be used for the laboratory, and can not be used for industrialized production. The Chinese patent with the application number of 201811332336.2 discloses a process method for improving the quality of reconstituted tobacco leaves which are heated and not combusted by a thick stock method, the method prepares homogenate by adding materials in two steps, wherein the composite biological agent immobilized adsorption carriers adopted in the step one are tobacco stems and wood shavings which are easy to decompose, and the adsorption effect and the internal quality of porous tissues in the tobacco stems and the wood shavings to a composite biological technical agent are not as good as those of tobacco stems expanded by microwaves. The application number 201911097188.5 discloses a forming and drying system for reconstituted tobacco by a thick pulp method special for heating non-burning cigarettes, which realizes classification, partition drying and uniform slurry dehydration and drying by systematically, cooperatively and flexibly controlling the temperature of hot air, the air intake and the air exhaust of the hot air and the like, but the forming and drying system is only a simple forming and drying system, can only regulate and control the drying process and does not relate to the adjustment of slurry components. In conclusion, the existing research and production of reconstituted tobacco by the thick paste method are limited to singly pay attention to the adjustment and change of slurry components or simply carry out production process control, and no method for preparing the special thick paste method reconstituted tobacco for heating non-burning cigarettes with high strength and good homogenization by comprehensively controlling all aspects such as slurry component control, thick paste preparation process, forming, drying, color equalization and the like which influence the quality and the production process of the reconstituted tobacco is available.
Disclosure of Invention
The invention aims to fill the blank of the prior art and provides a method for producing a high-strength homogenized tobacco material by a thick stock papermaking method, so as to prepare the papermaking method tobacco material which has the advantages of larger capacity of an atomizing agent, higher tobacco component proportion, obviously improved processing resistance, higher smoke release amount and higher release stability of a product, and better give consideration to both processing resistance and sensory quality.
The technical scheme adopted by the invention is as follows:
a method for producing high-strength homogenized tobacco material by a thick stock papermaking method, comprising the following steps:
(1) washing tobacco stems with water, mixing the tobacco stems with wood fibers, and performing enzyme treatment;
(2) mixing and grinding the tobacco stalks and the wood fibers which are treated by the enzyme to obtain homogeneous mixed pulp;
(3) preparing pulp, namely adding tobacco powder, a smoke agent and an adhesive into the mixed pulp to form a tobacco substrate;
(4) continuously extruding and molding the tobacco base material on a stainless steel belt;
(5) introducing hot steam penetrating through the stainless steel band along the vertical direction, carrying out primary drying on the formed tobacco base material on the stainless steel band, and demolding the tobacco base material subjected to primary drying by using a scraper;
(6) spraying atomized liquid vertically on the surface, close to the non-steel belt, of the demoulded formed tobacco substrate to perform color equalization treatment;
(7) drying the formed tobacco base material for the second time by adopting drying equipment;
(8) and (4) removing wrinkles of the formed tobacco base material, shaping and rolling.
Further, the tobacco stems are washed with water and mixed with wood fibers in the step (1), wherein 60-80% of the washed tobacco stems are mixed with 20-40% of the wood fibers according to the mass ratio.
The enzyme preparation adopted by the enzyme treatment is one or a mixture of more of cellulase, hemicellulase, α -L-arabinofuranosidase and amylase.
Further, the mixed grinding in the step (2) adopts a double-screw kneading machine to grind the pulp, wherein the grinding temperature is 50-55 ℃, and the grinding flow is 20-25L/min.
Further, the slurry preparation in the step (3) is to add smoke powder accounting for 20-30% of the mass of the mixed slurry, a binder accounting for 8-20% of the mass of the mixed slurry and a smoke agent accounting for 10-25% of the mass of the mixed slurry into the mixed slurry.
Furthermore, the tobacco powder is 250-350 meshes of powder prepared by crushing dry tobacco raw materials; the smoke agent is one or a mixture of more of propylene glycol, glycerol, sorbitol and other polyhydric alcohols; the adhesive is an adhesive aqueous solution with the mass concentration of 1.0-12.0% prepared by one or more of modified starch glue, sodium carboxymethyl cellulose, guar gum and chitosan.
Further, the continuous extrusion molding of the tobacco base material on the stainless steel belt in the step (4) is to coat the slurry base on the stainless steel belt by adopting a single-die head or double-die head screw extruder; coating an anti-sticking agent on the stainless steel belt, wherein the anti-sticking agent is propylene glycol or diammonium hydrogen phosphate or a mixture of the propylene glycol and the diammonium hydrogen phosphate.
Further, the atomized liquid used in the step (6) is one or more of propylene glycol, glycerol, sorbitol and diamine hydrogen phosphate.
Further, the water content of the formed tobacco substrate after the first drying in the steel strip discharging process is 12% -18%, and the water content after the second drying is 8% -15%.
Compared with the prior art, the invention has at least the following beneficial effects:
1. the tobacco stalk fiber homogenizing method fully utilizes the tobacco stalks which are lower in price and wide in source than tobacco leaves, increases the using amount of the tobacco stalks, performs optimization and refinement processing on raw materials for preparing thick slurry, performs enzyme treatment on the washed tobacco stalks and wood fibers, then performs mixed grinding, retains the length of the tobacco stalk fibers to the maximum extent, increases the binding force among the fibers, and obtains an excellent homogenizing treatment effect; the prepared papermaking tobacco material has the advantages of large capacity of the atomizing agent, high proportion of tobacco components, large smoke release amount, high release stability, uniform distribution of the components and obviously improved processing resistance, the tensile strength of the product can reach about 0.45KN/m, the coefficient of variation of the cross width quantification is reduced to 0.16%, the coefficient of variation of the nicotine stability quantification is reduced to 0.35%, and the preparation method is particularly suitable for preparing cigarette products which are not combusted by heating.
2. According to the invention, after the formed tobacco base material is dried by steam, the spray liquid color equalizing treatment is carried out on one surface close to the stainless steel band, and then the secondary drying is carried out, so that the problems that the color difference exists on the two surfaces of the tobacco base material after the primary drying and the quality of the tobacco base material is influenced are solved, the tensile strength and the toughness of the tobacco base material are improved, the processing performance of the tobacco base material is improved, and the subsequent continuous production of the heating non-combustible cigarette product is facilitated.
3. The invention carries out fine control from all directions influencing the quality and the production process of the reconstituted tobacco, each link including slurry components, thick paste processing, extrusion forming, drying, color equalizing and the like is strictly controlled, the tobacco raw materials are finely processed, and the integrated processes of extrusion forming, grading drying, color equalizing and the like are adopted, so that the prepared thick paste method tobacco base material has the outstanding advantages of large capacity of an atomizing agent, high proportion of tobacco components, large smoke release amount and release stability of products, good processing resistance and the like, and the processing resistance and the sensory quality of final products are well considered.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The invention is further explained by the following figures in the specification. The examples serve to better understand the context of the invention, but do not limit the scope of protection of the invention.
Example 1
Referring to fig. 1, a method of producing a high strength homogenized tobacco material by a thick stock papermaking process, comprising the steps of:
(1) mixing 70% of water-washed tobacco stems and 30% of wood fibers according to the mass ratio, and then carrying out enzyme treatment. The wood fiber is basswood fiber and hemp leaf, the enzyme preparation adopted by the enzyme treatment is cellulase, and the raw materials can be purchased in the market. The method of enzyme treatment is as follows: the microwave expanded tobacco stems are used as carriers of enzyme preparations, the microwave expanded tobacco stems loaded with cellulase are loaded into filter bags by utilizing the characteristics of good material absorbing property and difficult decomposition of the microwave expanded tobacco stems, then the filter bags are put into a container for mixing and washing the tobacco stems and wood fibers, and the filter bags are taken out after the filter bags are kept for 40min at the temperature of 40-45 ℃. The expansion degree of the microwave expanded tobacco stems is 250-300%, and the dosage of the cellulase is 0.035% of the sum of the mass of the washed tobacco stems, the mass of the basswood fibers and the mass of the hemp leaves.
(2) Mixing and grinding the tobacco stalks treated by the enzyme, the basswood fiber and the hemp leaves to prepare mixed pulp. The mixed grinding adopts a double-screw kneading machine to grind, the grinding temperature is 50-55 ℃, the grinding flow is 20-25L/min, the grinding time is not less than 60min, so as to retain the length of the tobacco stalk fiber to the maximum extent and increase the bonding force between the fibers.
(3) And (3) preparing the pulp, namely adding smoke powder accounting for 25% of the mass of the mixed pulp, a binder accounting for 10% of the mass of the mixed pulp and a smoke agent accounting for 15% of the mass of the mixed pulp into the mixed pulp, and fully and uniformly stirring to form the tobacco base material, namely the thick pulp. The tobacco powder is 300-mesh powder prepared by crushing dried tobacco leaves, the smoke agent is a mixture of propylene glycol and sorbitol, and the adhesive is an adhesive aqueous solution prepared from modified starch glue and having a mass concentration of 5.0%. The mixing proportion and the stirring time of the mixed slurry, the tobacco powder, the adhesive and the smoke agent are based on good stability, good viscosity and good fluidity, and the slurry mixing and stirring time is not less than 45 min.
(4) Adopting a single-die screw extruder to continuously extrude, mold and coat the tobacco base material, namely the thick paste, on an annular stainless steel belt; in order to facilitate the subsequent demoulding, an anti-sticking agent is firstly coated on the stainless steel strip, and the anti-sticking agent is propylene glycol. The thick paste forming thickness is controlled by a die head of the screw extruder.
(5) The hot steam passing through the stainless steel band is introduced from the upper part and the lower part of the stainless steel band along the vertical direction, and the formed tobacco substrate on the stainless steel band is introduced with the steam from the upper part and the lower part of the stainless steel band simultaneously, so that the formed tobacco substrate is dried by balanced steam, which is one-step drying.
(6) Demoulding the tobacco base material after primary drying by using a scraper; and arranging rows of compressed air and water spray hole positions on the demolding scraper, and self-cleaning the stainless steel strip and cooling the tobacco substrate. The water content of the formed tobacco base material is 15-17% when the steel strip is produced after the primary drying.
(7) And spraying atomized liquid vertically on one surface of the demoulded formed tobacco substrate, which is not attached to a steel belt, so as to carry out color equalization treatment, thereby solving the problem of color difference of two surfaces of the tobacco substrate after primary drying. The atomized liquid is diamine hydrogen phosphate.
(8) And heating the tobacco base material subjected to color homogenizing treatment by adopting an infrared drying oven for secondary drying. The drying temperature is controlled to be 70-75 ℃, and the tension of the drying oven is 0.05 MPa. The moisture content of the tobacco base material after secondary drying is 14-15%.
(9) And (3) carrying out hot-pressing wrinkle removal and sizing on the formed tobacco base material by adopting the matching of an upper roller and a lower roller. The wrinkle removing roller is pressed at 1MPa, and the setting temperature is 40 ℃.
(10) And rolling the formed tobacco base material with the wrinkle removal and the shaping. The winding speed is 50m/min, the winding tension is 10N, and the number of wound meters is 3000 m/roll.
Example 2
A method for producing high-strength homogenized tobacco material by a thick stock papermaking method, comprising the following steps:
(1) mixing 60 percent of water-washed tobacco stems with 40 percent of Korean pine fiber according to the mass ratio, and then carrying out enzyme treatment. The enzyme preparation used for the enzymatic treatment is a mixture of hemicellulase and amylase, all of which are commercially available. The method of enzyme treatment is as follows: the microwave expanded tobacco stems are used as carriers of enzyme preparations, the microwave expanded tobacco stems loaded with the enzyme preparations are filled into a filter bag, then the filter bag is placed into a container in which the tobacco stems and wood fibers are mixed and washed, the temperature is kept at 50 ℃ for 30min, and then the filter bag is taken out. The expansion degree of the microwave expanded tobacco stems is 300-350%, and the dosage of the enzyme preparation is 0.04% of the sum of the mass of the washed tobacco stems and the mass of the Korean pine fibers.
(2) And mixing and grinding the tobacco stalks and the Korean pine fibers which are subjected to enzyme treatment to prepare mixed pulp. The grinding temperature is 50 ℃, the grinding flow is 20L/min, and the grinding time is 65 min.
(3) And (3) preparing the slurry, namely adding the smoke powder accounting for 20 percent of the mass of the mixed slurry, the adhesive accounting for 20 percent of the mass of the mixed slurry and the smoke agent accounting for 25 percent of the mass of the mixed slurry into the mixed slurry, and stirring for 50min to form the dense smoke slurry. The tobacco powder is 250-mesh powder prepared by crushing dried tobacco stems, the smoke agent is glycerol, and the adhesive is an adhesive aqueous solution with the mass concentration of 12.0% and prepared by sodium carboxymethylcellulose and guar gum.
(4) Adopting a double-die-head screw extruder to continuously extrude, mold and coat the thick paste on an annular stainless steel strip coated with an anti-sticking agent in advance; the anti-sticking agent is diamine hydrogen phosphate. The thick paste forming thickness is controlled by a die head of the screw extruder.
(5) The hot steam passing through the stainless steel band is introduced from the upper part and the lower part of the stainless steel band along the vertical direction, and the formed tobacco substrate on the stainless steel band is introduced with the steam from the upper part and the lower part of the stainless steel band simultaneously, so that the formed tobacco substrate is dried by balanced steam, which is one-step drying.
(6) The tobacco base material after primary drying was removed from the mold by a scraper, and the moisture content of the formed tobacco base material after primary drying at the time of tapping the steel belt was about 18%.
(7) And spraying atomized liquid vertically on the surface of the demoulded formed tobacco substrate, which is tightly attached to the non-steel belt, so as to carry out color-homogenizing treatment. The atomized liquid is propylene glycol.
(8) And heating the tobacco base material subjected to color homogenizing treatment by adopting an infrared drying oven for secondary drying. The drying temperature is controlled to be 100-105 ℃, and the tension of the drying oven is 0.01 MPa. The moisture content of the tobacco base material after secondary drying is about 13%.
(9) And (3) carrying out hot-pressing wrinkle removal and sizing on the formed tobacco base material by adopting the matching of an upper roller and a lower roller. The wrinkle removing roller is pressed at 0.1MPa, and the setting temperature is 45 ℃.
(10) And rolling the formed tobacco base material with the wrinkle removal and the shaping. The winding speed is 10m/min, the winding tension is 20N, and the number of wound meters is 2000 m/roll.
Example 3
A method for producing high-strength homogenized tobacco material by a thick stock papermaking method, comprising the following steps:
(1) mixing 80% of water-washed tobacco stems and 20% of hemp leaves according to the mass ratio, and then carrying out enzyme treatment, wherein the enzyme preparation adopted by the enzyme treatment is α -L-arabinofuranosidase, the raw materials can be purchased in the market, and the enzyme treatment method comprises the following steps of taking microwave expanded tobacco stems as carriers of the enzyme preparation, filling the microwave expanded tobacco stems loaded with the enzyme preparation into a filter bag, then putting the filter bag into a container mixed with the water-washed tobacco stems and the hemp leaves, keeping the temperature at 45 ℃ for 60min, and then taking out the filter bag.
(2) Mixing and grinding the tobacco stalks and hemp leaves which are treated by enzyme to prepare mixed pulp. The grinding temperature is about 55 ℃, the grinding flow is 25L/min, and the grinding time is 60 min.
(3) And (3) preparing the slurry, namely adding tobacco powder accounting for 30% of the mass of the mixed slurry, a binder accounting for 8% of the mass of the mixed slurry and a smoke agent accounting for 10% of the mass of the mixed slurry into the mixed slurry, and stirring for 55min to form thick slurry. The tobacco powder is 350-mesh powder prepared by crushing dried tobacco leaves and tobacco stems, the smoke agent is sorbitol, and the adhesive is an adhesive aqueous solution with the mass concentration of 1.0% and prepared by chitosan.
(4) And (3) adopting a single-die screw extruder to continuously extrude, mold and coat the thick paste on the annular stainless steel strip coated with the anti-sticking agent to form the molded tobacco base material. The anti-sticking agent is a mixture of glycerol and diamine hydrogen phosphate.
(5) The hot steam passing through the stainless steel band is introduced from the upper part and the lower part of the stainless steel band along the vertical direction, and the formed tobacco substrate on the stainless steel band is introduced with the steam from the upper part and the lower part of the stainless steel band simultaneously, so that the formed tobacco substrate is dried by balanced steam, which is one-step drying.
(6) Demoulding the tobacco base material after primary drying by using a scraper; the moisture content of the formed tobacco base material after primary drying is about 12% when the steel strip is produced.
(7) And spraying atomized liquid vertically on the surface of the demoulded formed tobacco substrate, which is tightly attached to the non-steel belt, so as to carry out color-homogenizing treatment. The atomization liquid is a mixture of propylene glycol and sorbitol.
(8) And heating the tobacco base material subjected to color homogenizing treatment by adopting an infrared drying oven for secondary drying. The drying temperature is controlled to be 85 ℃, and the tension of the drying oven is 0.1 MPa. The moisture content of the tobacco base material after secondary drying is about 8 percent.
(9) And (3) carrying out hot-pressing wrinkle removal and sizing on the formed tobacco base material by adopting the matching of an upper roller and a lower roller. The wrinkle removing roller is pressed at 2.0MPa, and the setting temperature is 25 ℃.
(10) And rolling the formed tobacco base material with the wrinkle removal and the shaping. The winding speed is 80m/min, the winding tension is 5N, and the winding meter number is 4500 m/roll.
The equipment used in the invention, such as a single-die screw extruder, a double-die screw extruder, a demoulding scraper and an infrared drying oven, is the equipment in the prior art and can be purchased in the market.
All percentages stated in the present invention are percentages by mass, unless otherwise stated.
Claims (10)
1. A method for producing high-strength homogenized tobacco material by a thick stock papermaking method is characterized by comprising the following steps:
(1) washing tobacco stems with water, mixing the tobacco stems with wood fibers, and performing enzyme treatment;
(2) mixing and grinding the tobacco stalks and the wood fibers which are treated by the enzyme to obtain homogeneous mixed pulp;
(3) preparing pulp, namely adding tobacco powder, a smoke agent and an adhesive into the mixed pulp to form a tobacco substrate;
(4) continuously extruding and molding the tobacco base material on a stainless steel belt;
(5) introducing hot steam penetrating through the stainless steel band along the vertical direction, carrying out primary drying on the formed tobacco base material on the stainless steel band, and demolding the tobacco base material subjected to primary drying by using a scraper;
(6) spraying atomized liquid vertically on the surface, close to the non-steel belt, of the demoulded formed tobacco substrate to perform color equalization treatment;
(7) drying the formed tobacco base material for the second time by adopting drying equipment;
(8) and (4) removing wrinkles of the formed tobacco base material, shaping and rolling.
2. The method for producing the high-strength homogenized tobacco material by the thick stock papermaking method according to claim 1, wherein the tobacco stems in the step (1) are washed with water and mixed with wood fibers, and 60-80% of the washed tobacco stems and 20-40% of the wood fibers are mixed according to the mass ratio.
3. The method for producing high-strength homogenized tobacco material by thick stock papermaking according to claim 1 or 2, characterized in that the wood fiber is one or more of hardwood fiber, softwood fiber and hemp.
4. The method for producing homogenized tobacco material with high strength by thick stock papermaking according to claim 1 or 2, characterized in that the enzyme preparation used in the enzyme treatment in step (1) is one or a mixture of cellulase, hemicellulase, α -L-arabinofuranosidase and amylase.
5. The method for producing high-strength homogenized tobacco material by thick stock papermaking according to claim 1, wherein the mixed refining in the step (2) is performed by adopting a twin-screw kneader, and the refining temperature is 50-55 ℃, and the refining flow is 20-25L/min.
6. The method for producing a high-strength homogenized tobacco material by the thick stock papermaking method according to claim 1, wherein the blending stock in the step (3) is prepared by adding smoke powder accounting for 20-30% of the mass of the mixed stock, a binder accounting for 8-20% of the mass of the mixed stock and a smoke generating agent accounting for 10-25% of the mass of the mixed stock to the mixed stock.
7. The method for producing a high-strength homogenized tobacco material by the thick stock papermaking method according to claim 1 or 6, characterized in that the tobacco powder is 250-350 mesh powder obtained by crushing dried tobacco raw materials; the smoke agent is one or a mixture of more of propylene glycol, glycerol, sorbitol and other polyhydric alcohols; the adhesive is an adhesive aqueous solution with the mass concentration of 1.0-12.0% prepared by one or more of modified starch glue, sodium carboxymethyl cellulose, guar gum and chitosan.
8. The method for producing homogenized tobacco material with high strength by thick stock papermaking method according to claim 1, wherein the step (4) of continuously extruding the tobacco substrate onto a stainless steel belt is to coat the slurry base on the stainless steel belt by a single-die or double-die screw extruder; coating an anti-sticking agent on the stainless steel belt, wherein the anti-sticking agent is propylene glycol or diammonium hydrogen phosphate or a mixture of the propylene glycol and the diammonium hydrogen phosphate.
9. The method for producing homogenized tobacco material with high strength by thick stock papermaking according to claim 1, wherein the atomized liquid used in the step (6) is one or more of propylene glycol, glycerol, sorbitol, and diamine hydrogen phosphate.
10. The method for producing high-strength homogenized tobacco material by thick stock papermaking according to claim 1, wherein the moisture content of the formed tobacco substrate after the first drying is 12-18% when the steel strip is taken out, and the moisture content after the second drying is 8-15%.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111887464A (en) * | 2020-07-28 | 2020-11-06 | 普维思信(深圳)科技有限公司 | Preparation method and application of coffee aroma style coating thick paste slice |
| CN112385876A (en) * | 2020-12-03 | 2021-02-23 | 湖北中烟工业有限责任公司 | Preparation method of reconstituted tobacco with high bulk |
| CN113229526A (en) * | 2021-06-08 | 2021-08-10 | 湖北中烟工业有限责任公司 | Preparation method of non-combustion tobacco product heated by rolling method |
| CN113331461A (en) * | 2021-06-07 | 2021-09-03 | 中国船舶工业总公司七一五研究所宜昌分部 | Novel thick paste and rolling two-in-one tobacco sheet manufacturing process |
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| CN111887464B (en) * | 2020-07-28 | 2022-05-17 | 普维思信(深圳)科技有限公司 | Preparation method and application of coffee aroma style coating thick paste slice |
| CN112385876A (en) * | 2020-12-03 | 2021-02-23 | 湖北中烟工业有限责任公司 | Preparation method of reconstituted tobacco with high bulk |
| CN113331461A (en) * | 2021-06-07 | 2021-09-03 | 中国船舶工业总公司七一五研究所宜昌分部 | Novel thick paste and rolling two-in-one tobacco sheet manufacturing process |
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