CN110638083B - Efficient preparation method of expanded cut tobacco - Google Patents
Efficient preparation method of expanded cut tobacco Download PDFInfo
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- CN110638083B CN110638083B CN201810668190.2A CN201810668190A CN110638083B CN 110638083 B CN110638083 B CN 110638083B CN 201810668190 A CN201810668190 A CN 201810668190A CN 110638083 B CN110638083 B CN 110638083B
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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
- A24B3/00—Preparing tobacco in the factory
- A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
- A24B3/182—Puffing
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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
- A24B3/00—Preparing tobacco in the factory
- A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
Abstract
The invention discloses an efficient preparation method of expanded cut tobacco, which comprises the following steps: firstly, tobacco shred raw materials absorb water to obtain wet and expanded tobacco shreds; then, the wet swelling tobacco shreds are contacted and mixed with a liquid medium which can be dissolved in water; then drying the tobacco shreds after the contact mixing; and finally, dampening the dried cut tobacco to the required water content to obtain the expanded cut tobacco. The method of the invention is characterized in that: the liquid medium is contacted with water in the cut tobacco to form mixed solution, so that the wettability of the mixed solution on the cut tobacco is changed, the drying shrinkage stress caused by the water in the drying process of the cut tobacco can be eliminated or reduced, and the expansion volume of the cut tobacco is kept. The process has mild conditions, is rapid and efficient, the expansion rate of the expanded cut tobacco prepared by the method is adjustable, the efficiency is high, and the continuous production of the expanded cut tobacco can be realized.
Description
Technical Field
The invention relates to the technical field of tobacco shred production. And more particularly, to a method for efficiently preparing expanded cut tobacco.
Background
After the fresh tobacco leaves are harvested, conditioned, redried and stored, a large amount of water is lost inside the cells, resulting in a volume shrinkage of up to about 60%. A large amount of volume shrinkage can greatly reduce the filling capacity and the combustion performance of the cut tobacco, and can increase the generation amount of harmful substances such as tar in smoke and the unit consumption of the cut tobacco in cigarettes. In order to improve the defect and improve the cigarette quality, currently, in the cigarette production and manufacturing process, the tobacco shred expansion technology is mainly adopted to recover the initial volume of the tobacco shreds as much as possible, improve the filling capacity of the tobacco shreds and reduce the unit consumption of the tobacco shreds. The tobacco shred expansion technology has important economic benefits for cigarette manufacturers, and has important social benefits because the harm of tobacco to the health of consumers is reduced due to the reduction of the filling amount.
The conventional tobacco shred expansion methods are mainly classified into a freon expansion method, an alkane expansion method, a nitrogen expansion method, a carbon dioxide expansion method, and the like. Among them, the freon expansion method is forbidden due to the destructive effect on the ozone layer; in the alkane expansion method, an alkane expansion medium belongs to flammable and explosive substances with high risk grade, has high requirements on production environment and safety protection grade, and has the problem of extracting a large amount of tobacco shred components; although the expansion medium used in the nitrogen expansion method is environment-friendly and pollution-free, the expansion process can generate ultrahigh pressure of about 800 atmospheres, which is a great challenge to production equipment and operation safety; the carbon dioxide expansion method is a mainstream tobacco shred expansion method in China, but the carbon dioxide expansion method has the defects of large loss of carbon dioxide expansion technology, high equipment repair and maintenance cost, large tobacco shred fragrance loss, heavy scorched gas and high shred breaking rate, causes the problem of greenhouse gas pollution due to the emission of a large amount of carbon dioxide, does not accord with the direction of social low-carbon sustainable development, has the risks of limited use and the like, and all the defects force people to hope to carry out technical updating on the tobacco shred expansion method.
In order to solve a series of problems of high production cost and the like caused by using carbon dioxide as an expansion medium in the tobacco shred expansion process, water is used as a clean and environment-friendly expansion medium and is researched and applied to the tobacco shred expansion technology in recent years. For example, Chinese patent CN 1653968A discloses a process for expanding cut tobacco by using water as a medium. The method is characterized in that water is used as a medium and hot air is adopted for expansion in the tobacco shred expansion process, the physical property and the chemical property of the water determine that the tobacco shred is a substance of which the substance state is easy to change under the normal temperature and normal pressure states, the tobacco shred also easily absorbs the moisture to increase the water content inside and outside the cell, and the water has certain solubility on harmful substances in the tobacco shred, so that the water in the tobacco shred is quickly expanded and gasified under the action of high-temperature gas and is taken away by the high-temperature gas, and the tobacco shred can be expanded. For another example, an HXD expansion method is reported, in which after tobacco shreds absorb water, the tobacco shreds are heated in high-temperature circulating gas at a temperature of 200-400 ℃ to generate instantaneous high vapor pressure in tobacco shreds cells, so as to promote cell wall expansion and achieve tobacco shred expansion effect, and finally the tobacco shreds are dried and shaped to obtain the product. The production cost and equipment investment of the tobacco shred expansion technology are greatly reduced by taking water as an expansion medium, but the technical route still has many problems and defects:
(1) the tobacco shreds will become soft after absorbing water, and due to the structure with large length-diameter ratio, the tobacco shreds after absorbing water will be in a lumpy state, especially the tobacco shreds with high water content. The quality of the obtained expanded cut tobacco product can be influenced by directly carrying out subsequent processes on the lumpy cut tobacco;
(2) when the water-swelling cut tobacco is dried, certain drying shrinkage stress is brought to the cut tobacco by liquid water evaporation, so that the swelling volume of the cut tobacco is difficult to maintain;
(3) the high temperature condition causes obvious loss of the aroma and the flavor of the cut tobacco and obviously causes crumbling in the airflow drying process;
(4) the expansion effect is greatly reduced due to side effects caused by crushing, and the finally obtained expanded cut tobacco has low filling capacity and can only be used as a low-grade raw material of cigarettes.
Therefore, in order to solve the problems in the technical route, the invention provides a tobacco shred expansion method by using environment-friendly medium water as an expansion medium, and innovatively provides a technical scheme for eliminating or reducing drying shrinkage stress by using the contact of a liquid medium and tobacco shreds. The technical scheme provided by the invention greatly improves the production efficiency of the expanded cut tobacco by taking water as an expansion medium, can realize the rapid and continuous production of the expanded cut tobacco and has good economic and social benefits.
Disclosure of Invention
The invention aims to provide an efficient preparation method of expanded cut tobacco, which takes environment-friendly medium water as an expansion medium, greatly improves the production efficiency of the expanded cut tobacco on the premise of ensuring and even improving the expansion effect, avoids the influence of high temperature and strong air flow on the cut tobacco, and realizes high-quality, rapid and continuous production of the expanded cut tobacco.
The basic principle of the invention is as follows: firstly, tobacco shred raw materials absorb water to obtain volume expansion; then, the tobacco shreds absorbing water contact with a liquid medium capable of dissolving in water, and then are separated and dried through a mixed solution or directly dried after the tobacco shreds contact with the liquid medium, and finally, the expanded tobacco shreds are obtained through a moisture regaining process. The method is characterized in that: since the liquid medium is soluble in water, when the aqueous tobacco shreds are contacted with the liquid medium, the water in the tobacco shreds cells will quickly diffuse into the liquid medium, forming a mixed solution of water and the liquid medium. After the mixed solution is formed, the wetting property of the mixed solution on the cut tobacco is changed, so that the drying shrinkage stress of the cut tobacco caused by water can be eliminated or weakened. The tobacco thread is able to maintain its expanded form during this contact and, due to the elimination or reduction of drying shrinkage stresses, is able to substantially maintain its expanded form during subsequent drying. Compared with the high-temperature airflow method, the method has the advantages that the conditions in the tobacco shred processing process are mild, the operation is rapid and efficient, the liquid medium can be repeatedly recycled after dehydration treatment, the production efficiency of the expanded tobacco shred is greatly improved, the production energy consumption is greatly reduced, and the expanded tobacco shred can be efficiently and continuously produced.
According to the principle, the invention realizes the purpose of the invention by implementing the following technical scheme. An efficient preparation method of expanded cut tobacco is characterized by comprising the following process steps:
(1) absorbing water from the tobacco shred raw material to obtain wet and expanded tobacco shreds;
(2) the wet swelling tobacco shreds are contacted with a liquid medium, and the liquid medium can be dissolved in water;
(3) separating tobacco shred from liquid medium and water, and drying;
or
Directly drying;
(4) and (5) dampening the dried tobacco shreds to the required water content to obtain the expanded tobacco shreds.
The tobacco shred raw material in the process step (1) of the invention is the tobacco shred before expansion treatment. The process of absorbing water from the tobacco shred raw material is the process of increasing the water content of the tobacco shred, the conditions of the process are not limited, if the tobacco shred can be directly placed in water or sprayed with water at normal temperature and normal pressure to freely absorb water and swell, or the tobacco shred can be soaked in water or sprayed with water to expand at a certain temperature or under a certain pressure. In addition, the water content of the wet and expanded tobacco shreds is controlled and regulated by controlling the time of contact between the tobacco shreds and water or the water addition amount. The moisture content of the wet and expanded cut tobacco can reach the saturated water absorption capacity of the cut tobacco, and the moisture content of the wet and expanded cut tobacco is controlled to be 6-400%. Further, the moisture content of the swollen cut tobacco includes, but is not limited to, for example, 50% -400%, 100% -350%, 120% -300%, 150% -250%, 50% -100%, 20% -50%, and the like.
The selection of the liquid medium involved in step (2) of the method of the present invention is not limited except for the special requirement of "water-soluble", i.e., the liquid compound that is soluble in water is within the scope of the present invention. The term "soluble in water" as used herein means having a certain solubility in water. Depending on the solubility difference in water, including but not limited to, readily soluble, slightly soluble, and the like. If one liquid medium is selected, the liquid medium and the water are preferably in a mutual soluble state, and the mutual solubility generally refers to a phenomenon that two substances are mixed, including a partially mutual soluble state; if two or more liquid media are selected, the liquid media and the water are preferably in a miscible state, and the miscible state generally refers to a phenomenon that three or more substances are mixed together and fused with each other.
Two cases are involved in step (3) of the process of the invention. Generally, when the cut tobacco in the step (2) has a large water content or a large amount of liquid medium is added, a mixed solution of the liquid medium and water exists outside the processed cut tobacco, and at this time, the cut tobacco is preferably separated from the mixed solution and then dried; and (3) under the condition that the water content of the cut tobacco in the step (2) is low or the adding amount of the liquid medium is low, and the treated cut tobacco does not have or only has a small amount of mixed solution, the mixed solution can be directly dried without separation. Of course, the above-mentioned methods can be interchanged without considering the cost and time, and the final effect is not influenced by the method and the step of removing the liquid medium and the water.
According to the basic principle of the method according to the invention, it will be understood by a person skilled in the art that the contacting process according to the invention is essentially a process of mixing the water in the swollen cut tobacco with the liquid medium, i.e. a process of mixing at least part of the water in the swollen cut tobacco with the liquid medium. The solution according to the invention can be successfully implemented by the liquid medium only having to satisfy the "water-soluble" requirement, which is predictable to the person skilled in the art, and it is therefore not necessary here to list all liquid media that are soluble in water to prove the feasibility of this solution.
Further, the liquid medium according to the present invention is preferably selected from one or more of polar compounds. Polar compounds are molecules known to those skilled in the art with dipole moments μ ≠ 0, i.e. molecules in which the centers of positive and negative charges do not coincide, the distribution of charges is not uniform throughout the molecule, asymmetric molecules, and such compounds are generally readily soluble in water.
The liquid medium involved in the method of the present invention may be one or more selected from alcohols with 1 to 3 carbon atoms, acids with 1 to 4 carbon atoms, acetonitrile, acetone, acetaldehyde, propionaldehyde, tetrahydrofuran, dimethylformamide, dimethyl sulfoxide, ethylenediamine, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol dimethyl ether, diethylene glycol diethyl ether, 1, 3-dioxolane, and 1, 4-dioxane.
Preferably, the alcohol with 1-3 carbon atoms is selected from one or more of methanol, ethanol, 1-propanol, 2-propanol, ethylene glycol, 1, 2-propylene glycol and 1, 3-propylene glycol.
Preferably, the acid of 1 to 4 carbon atoms is selected from one or both of acetic acid or propionic acid.
The operation mode of contacting the wet expanded tobacco shreds with the liquid medium in the step (2) of the method comprises the steps of dispersing the tobacco shreds into the liquid medium, spraying the liquid medium onto the tobacco shreds, and adding the liquid medium or other means capable of contacting the tobacco shreds with the liquid medium in the process of stirring and stirring the tobacco shreds by turning over, namely, all means capable of contacting the tobacco shreds with the liquid medium are within the protection range of the invention, and preferably, the tobacco shreds are uniformly contacted with the liquid medium.
The drying mode in step (3) of the method of the present invention may be normal pressure drying, vacuum drying or other drying means capable of sufficiently drying water or a liquid medium or a mixture of both. In the drying process, a liquid medium which can form an azeotrope with water evaporates in the form of the azeotrope with water according to an azeotropic ratio, and the part outside the ratio evaporates separately; the liquid medium which does not form an azeotrope with water evaporates separately from water.
In addition, the moisture content of the tobacco shreds after being dried in the step (4) of the method can be determined according to actual conditions, and the moisture content of the expanded tobacco shreds is generally 12-13%.
The invention has the following beneficial effects:
compared with the prior art, the high-efficiency preparation method of the expanded cut tobacco provided by the invention has the following advantages:
1) the production process is clean and environment-friendly, and no pollutant is discharged;
2) the production condition is mild, special equipment such as high temperature, ultrahigh pressure and the like is not needed, and the method is easy to implement;
3) the expansion rate of the tobacco shreds is adjustable, and the expanded tobacco shreds are regular in shape and easy to roll;
4) the tobacco shred production efficiency is high, and continuous production can be realized;
5) the shredded tobacco has low breakage rate, reduces the waste of the shredded tobacco and has high filling capacity.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic flow diagram of the preparation process of the present invention.
Fig. 2 shows the state of the swollen tobacco shreds before (a) and after (b) contact with the medium, respectively.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below with reference to preferred embodiments and the accompanying drawings. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
The technical solution of the present invention is described below with reference to some preferred embodiments:
example 1
The high-efficiency preparation method of the expanded cut tobacco comprises the following steps:
cut tobacco shreds (with water content of 25%) of Zhongnan sea brand cigarettes from Beijing cigarette factory are uniformly added with water to increase water content to 400%, and the shape is shown as a in FIG. 2. The other container is filled with ethanol. The tobacco shreds after absorbing water were transferred to the container and dispersed evenly in ethanol by moderate agitation. After dispersion is finished, because the ethanol and the water are mutually soluble, a large amount of water in the tobacco shreds is diffused into the ethanol, and the ethanol is also diffused into tobacco shred cells to form an ethanol/water mixed solution, so that medium mixing is finished. The mixed tobacco shreds are taken out from the ethanol, and dried, with the shape shown in b of FIG. 2. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 8.52cm by using a filling value tester3/g。
In this example, the above experimental contents were repeated to replace "ethanol" with another alcohol having 1 to 3 carbon atoms selected from one or more of methanol, ethanol, 1-propanol, 2-propanol, ethylene glycol, 1, 2-propanediol, and 1, 3-propanediol without affecting the properties of the resulting product.
Example 2
The high-efficiency preparation method of the expanded cut tobacco comprises the following steps:
cut tobacco (with water content of 20%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory, and uniformly add water to the cut tobacco to make the water content of 50%. The tobacco shreds are placed in a roller container, the roller is rotated to turn over the tobacco shreds, and the propanol is sprayed on the tobacco shreds at the same time, so that the tobacco shreds are uniformly contacted with the propanol. Because the propanol is mutually soluble with water, the water in the tobacco shreds is quickly mixed with the propanol to form a propanol/water mixed solution. And heating and drying the tobacco shreds. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 6.2cm by using a filling value tester3/g。
In this embodiment, the propanol may be 1-propanol or 2-propanol, or a mixture of both. The above experimental contents were repeated to replace the "propanol" with another alcohol having 1 to 3 carbon atoms selected from one or more of methanol, ethanol, 1-propanol, 2-propanol, ethylene glycol, 1, 2-propanediol and 1, 3-propanediol without affecting the properties of the resulting product.
Example 3
The high-efficiency preparation method of the expanded cut tobacco comprises the following steps:
cut tobacco (with water content of 20%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory, and uniformly add water to the cut tobacco to make the water content of the cut tobacco 40%. The tobacco shreds are placed in a roller container, the roller is rotated to turn over the tobacco shreds, and simultaneously, acetone is sprayed on the tobacco shreds to enable the tobacco shreds to be in uniform contact with the acetone. Because the acetone and the water are mutually soluble, the water in the tobacco shreds is quickly mixed with the acetone to form an acetone/water mixed solution. The excess acetone/water mixed solution in the container was drained and the cut tobacco was dried. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 5.94cm by using a filling value tester3/g。
Example 4
The high-efficiency preparation method of the expanded cut tobacco comprises the following steps:
cut tobacco (with water content of 22%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory, and uniformly add water to the cut tobacco to make the water content of 100%. The other vessel was filled with acetonitrile. The tobacco shreds after imbibition were transferred to the container and dispersed homogeneously in acetonitrile by moderate agitation. After dispersion is completed, because acetonitrile and water are mutually soluble, a large amount of water in the tobacco shreds is diffused into acetonitrile, and the acetonitrile is also diffused into tobacco shred cells to form an acetonitrile/water mixed solution, so that medium mixing is completed. And taking the mixed tobacco shreds out of the container, and putting the tobacco shreds into an oven for drying. And after completely drying, taking out the cut tobacco, and dampening until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 6.38cm by using a filling value tester3/g。
Example 5
A preparation method of expanded cut tobacco comprises the following steps:
cut tobacco shreds (with water content of 24%) of the Zhongnan brand tobacco of Beijing cigarette factory are uniformly added with water, and the cut tobacco shreds are naturally absorbed with water until the water content is 150%. The cut tobacco is put into a roller container, and the cut tobacco is turned over by rotating the container. And intermittently spraying acetic acid on the cut tobacco in the turning process, removing the redundant acetic acid/water mixed solution in the container after one-time spraying and fully stirring to mix the cut tobacco and the acetic acid, and then spraying the mixed solution for the next time until the mixed solution reaches the target concentration. By the intermittent adding mode, the aim of reducing the using amount of the liquid medium under the condition of the same mixing degree can be fulfilled. After the mixing is completed, the cut tobacco is dried. And (4) after completely drying, wetting the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 6.66cm by using a filling value tester3/g。
In this example, the above experimental contents were repeated to replace "acetic acid" with an acid having 1 to 4 carbon atoms selected from propionic acid and the like, without affecting the properties of the obtained product.
Example 6
A preparation method of expanded cut tobacco comprises the following steps:
cut tobacco shreds (with water content of 25%) of the Zhongnan brand tobacco of Beijing cigarette factory are uniformly added with water to make the water content of 300%. The other vessel was filled with propionaldehyde. The tobacco shreds after absorbing water were transferred to the container and dispersed homogeneously in propionaldehyde by moderate agitation. After dispersion is completed, because propionaldehyde is mutually soluble with water, a large amount of water in the tobacco shreds is diffused into propionaldehyde, and the propionaldehyde is also diffused into tobacco shred cells to form a propionaldehyde/water mixed solution, so that medium mixing is completed. And taking out the mixed tobacco shreds from the propionaldehyde, and drying in a vacuum oven. And after completely drying, taking out the cut tobacco, and dampening until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. Testing station using filling value testerThe filling value of the tobacco shreds is 8.35cm3/g。
In this example, the experimental contents described above were repeated to replace "propanal" with acetaldehyde, without affecting the properties of the obtained product.
Example 7
A preparation method of expanded cut tobacco comprises the following steps:
the cut tobacco shreds (with water content of 20%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory are uniformly added with water to make the water content of 200%, and then placed in a cylindrical container. Adding tetrahydrofuran into the container, rotating the container to make the cut tobacco uniformly and fully contact with the tetrahydrofuran, discharging the tetrahydrofuran/water mixed solution in the container, adding the tetrahydrofuran again, and repeating the steps until the mixed solution reaches the target concentration. By the intermittent adding mode, the aim of reducing the using amount of the liquid medium under the condition of the same mixing degree can be fulfilled. Drying the tobacco shreds with hot air. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 7.89cm by using a filling value tester3/g。
Example 8
A preparation method of expanded cut tobacco comprises the following steps:
cut tobacco shreds (with water content of 20%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory are uniformly added with water to make the water content of 350%. The other vessel was filled with dimethylformamide. The tobacco shreds after absorbing water were transferred to the container and dispersed homogeneously in dimethylformamide by moderate agitation. After dispersion is finished, because the dimethylformamide and the water are mutually soluble, the water in the tobacco shreds is quickly diffused into the dimethylformamide, and the dimethylformamide is also diffused into tobacco shred cells to form a dimethylformamide/water mixed solution, so that medium mixing is finished. And taking out the mixed cut tobacco from the dimethylformamide and drying. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, is fluffy, and is dispersedThe performance is good. The filling value of the cut tobacco is 8.38cm by using a filling value tester3/g。
Example 9
A preparation method of expanded cut tobacco comprises the following steps:
cut tobacco (with water content of 20%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory, and uniformly add water to the cut tobacco to make the water content of the cut tobacco 250%. The cut tobacco is put into a roller container, the roller is rotated to turn over the cut tobacco, and dimethyl sulfoxide is sprayed on the cut tobacco to enable the cut tobacco to be in uniform contact with the dimethyl sulfoxide. Because dimethyl sulfoxide and water are mutually soluble, water in the tobacco shreds is quickly mixed with the dimethyl sulfoxide and the water to form a dimethyl sulfoxide/water mixed solution, and medium mixing is finished. The dimethyl sulfoxide/water mixed solution in the container was discharged, and the cut tobacco was dried. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the tobacco shreds is 8.03cm by using a filling value tester3/g。
Example 10
A preparation method of expanded cut tobacco comprises the following steps:
cut tobacco (with water content of 18%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory, and uniformly add water to the cut tobacco to make the water content of 180%. The tobacco shreds are placed in a roller container, the roller is rotated to turn over the tobacco shreds, and meanwhile, ethylenediamine is sprayed on the tobacco shreds to enable the tobacco shreds to be in uniform contact with the ethylenediamine. Because the ethylenediamine and the water are mutually soluble, the water in the tobacco shreds is quickly mixed with the ethylenediamine and the water to form an ethylenediamine/water mixed solution, and medium mixing is finished. The container was drained of the ethylenediamine/water mixed solution and the cut tobacco was dried. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 7.79cm by using a filling value tester3/g。
Example 11
A preparation method of expanded cut tobacco comprises the following steps:
getting BeijingCut tobacco (with the water content of 23%) of the south China sea brand cigarettes of the cigarette factory is uniformly added with water, so that the water content is 330%. The other container was filled with ethylene glycol ethyl ether. The tobacco shreds after absorbing water were transferred to the container and dispersed evenly in ethylene glycol ethyl ether by moderate agitation. After dispersion is finished, because the ethylene glycol ethyl ether and water are mutually soluble, a large amount of water in the tobacco shreds is diffused into the ethylene glycol ethyl ether, and the ethylene glycol ethyl ether is also diffused into tobacco shred cells to form an ethylene glycol ethyl ether/water mixed solution, and medium mixing is finished. And taking the mixed tobacco shreds out of the ethylene glycol ethyl ether, and drying in a vacuum oven. And (4) after completely drying, dampening until the water content is 12-13%, and finishing the process to obtain the expanded tobacco shreds. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 8.43cm by using a filling value tester3/g。
In this embodiment, the above experimental contents are repeated to replace the "ethylene glycol ethyl ether" with one or more of ethylene glycol methyl ether, ethylene glycol propyl ether, and ethylene glycol dimethyl ether, without affecting the performance of the obtained product.
Example 12
A preparation method of expanded cut tobacco comprises the following steps:
the cut tobacco shreds (with water content of 20%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory are uniformly added with water to make the water content of 220%, and then placed in a cylindrical container. Adding diglyme into the container, rotating the container to make the tobacco shreds uniformly and fully contact with the diglyme, discharging the diglyme/water mixed solution in the container, adding diglyme again, and repeating the steps until the mixed solution reaches the target concentration. By the intermittent adding mode, the aim of reducing the using amount of the liquid medium under the condition of the same mixing degree can be fulfilled. Drying the tobacco shreds with hot air. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 7.97cm by using a filling value tester3/g。
In this example, the above experimental contents were repeated to change the "diglyme" to diglyme without affecting the properties of the obtained product.
Example 13
The high-efficiency preparation method of the expanded cut tobacco comprises the following steps:
cut tobacco (with water content of 21%) of Hongshuanxi brand cigarettes from Shanghai cigarette factory, and uniformly add water to the cut tobacco to make the water content of 70%. The tobacco shreds are put into a roller container, the roller is rotated to turn over the tobacco shreds, and simultaneously, 1, 4-dioxane is sprayed on the tobacco shreds, so that the tobacco shreds are uniformly contacted with the 1, 4-dioxane. Because the 1, 4-dioxane and water are mutually soluble, the water in the tobacco shreds is mixed with the 1, 4-dioxane and water to form a 1, 4-dioxane/water mixed solution. And drying the cut tobacco. And (4) after completely drying, dampening the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained expanded tobacco shred has regular shape, fluffy shape and good dispersibility. The filling value of the cut tobacco is 6.25cm by using a filling value tester3/g。
In this example, the above experimental contents were repeated to change "1, 4-dioxane" to 1, 3-dioxolane, without affecting the properties of the obtained product.
Example 14
A preparation method of expanded cut tobacco comprises the following steps:
cut tobacco shreds (with water content of 26%) of the Zhongnan brand tobacco of Beijing cigarette factory are uniformly added with water, and the cut tobacco shreds are naturally absorbed with water until the water content is 160%. The cut tobacco is put into a roller container, and the cut tobacco is turned over by rotating the container. Intermittently spraying the mixed solution of methanol/acetone onto tobacco shreds during turning, removing the mixed solution of methanol/acetone/water in the container after spraying and stirring the mixed solution and tobacco shreds, and spraying again until the mixed solution reaches the target concentration. By the intermittent adding mode, the aim of reducing the using amount of the liquid medium under the condition of the same mixing degree can be fulfilled. After the mixing is completed, the cut tobacco is dried. And (4) after completely drying, wetting the cut tobacco until the moisture content is 12-13%, and finishing the process to obtain the expanded cut tobacco. The obtained puffThe expanded tobacco shreds have regular and fluffy shape and good dispersibility. The filling value of the cut tobacco is 6.73cm by using a filling value tester3/g。
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (1)
1. The efficient preparation method of the expanded cut tobacco is characterized by comprising the following steps of:
(1) absorbing water from the tobacco shred raw material to obtain wet swelling tobacco shreds with the water content of 50-400%;
(2) the wet swelling tobacco shreds are contacted with a liquid medium, the liquid medium can be dissolved in water, and the liquid medium is selected from one or more polar compounds;
(3) separating tobacco shred from liquid medium and water, and drying;
or
Directly drying;
(4) conditioning the dried tobacco shreds to the required water content to obtain expanded tobacco shreds;
the liquid medium is selected from one or more of methanol, ethanol, 1-propanol, 2-propanol, ethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, acetic acid, propionic acid, acetonitrile, acetone, acetaldehyde, propionaldehyde, tetrahydrofuran, dimethylformamide, dimethyl sulfoxide, ethylenediamine, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol dimethyl ether, diethylene glycol ethyl ether, 1, 3-dioxolane and 1, 4-dioxane.
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| CN201810668190.2A CN110638083B (en) | 2018-06-26 | 2018-06-26 | Efficient preparation method of expanded cut tobacco |
| PCT/CN2019/093096 WO2020001496A1 (en) | 2018-06-26 | 2019-06-26 | Efficient preparation method for expanded shag |
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| CN201810668190.2A CN110638083B (en) | 2018-06-26 | 2018-06-26 | Efficient preparation method of expanded cut tobacco |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3524451A (en) * | 1968-04-10 | 1970-08-18 | Reynolds Tobacco Co R | Process for increasing the filling capacity of tobacco |
| US4270553A (en) * | 1978-11-13 | 1981-06-02 | R. J. Reynolds Tobacco Company | Process and apparatus for expanding tobacco |
| CN87104919A (en) * | 1985-06-21 | 1988-03-09 | 英美烟草公司 | The improvement of expanding tobacco |
| CN101108028A (en) * | 2007-07-23 | 2008-01-23 | 中国烟草总公司郑州烟草研究院 | Technique of pre-expanding treating cabo |
| CN101617855A (en) * | 2008-07-03 | 2010-01-06 | 北京航天试验技术研究所 | Method for continuous microwave expansion of cut tobacco |
| CN107242604A (en) * | 2017-06-06 | 2017-10-13 | 倪克平 | Tobacco expanding processing technology |
| CN107981408A (en) * | 2017-12-20 | 2018-05-04 | 江西中烟工业有限责任公司 | A kind of swelling agent for shredded tobacco and its application |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3786818A (en) * | 1970-02-24 | 1974-01-22 | Research Corp | Apparatus for turgor conditioning tobacco |
| BG98820A (en) * | 1993-06-14 | 1995-03-31 | Reynolds Tobacco Co R | Method and device for the expansion of tobacco |
| US5590667A (en) * | 1995-07-28 | 1997-01-07 | Scw, Inc. | Tobacco expansion method |
| EP1925218A1 (en) * | 2006-11-23 | 2008-05-28 | Philip Morris Products S.A. | System for producing expanded tobacco |
| CN101513272B (en) * | 2009-04-03 | 2012-01-04 | 云南瑞升烟草技术（集团）有限公司 | Method for expanding tobacco shred |
| CN101919582B (en) * | 2009-06-10 | 2012-09-05 | 周川 | Low-temperature microwave expansion process of cut tobacco |
| CN102763893A (en) * | 2012-08-14 | 2012-11-07 | 云南烟草科学研究院 | Method for expanding cut tobaccos |
| CN102972859A (en) * | 2012-12-27 | 2013-03-20 | 云南瑞升烟草技术（集团）有限公司 | Method for preparing burley tobacco stems into stem particles or strip-shaped stem threads |
| CN108095185B (en) * | 2017-12-14 | 2020-05-05 | 江西中烟工业有限责任公司 | Tobacco shred pretreatment process |
-
2018
- 2018-06-26 CN CN201810668190.2A patent/CN110638083B/en active Active
-
2019
- 2019-06-26 WO PCT/CN2019/093096 patent/WO2020001496A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3524451A (en) * | 1968-04-10 | 1970-08-18 | Reynolds Tobacco Co R | Process for increasing the filling capacity of tobacco |
| US4270553A (en) * | 1978-11-13 | 1981-06-02 | R. J. Reynolds Tobacco Company | Process and apparatus for expanding tobacco |
| CN87104919A (en) * | 1985-06-21 | 1988-03-09 | 英美烟草公司 | The improvement of expanding tobacco |
| CN101108028A (en) * | 2007-07-23 | 2008-01-23 | 中国烟草总公司郑州烟草研究院 | Technique of pre-expanding treating cabo |
| CN101617855A (en) * | 2008-07-03 | 2010-01-06 | 北京航天试验技术研究所 | Method for continuous microwave expansion of cut tobacco |
| CN107242604A (en) * | 2017-06-06 | 2017-10-13 | 倪克平 | Tobacco expanding processing technology |
| CN107981408A (en) * | 2017-12-20 | 2018-05-04 | 江西中烟工业有限责任公司 | A kind of swelling agent for shredded tobacco and its application |
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| CN110638083A (en) | 2020-01-03 |
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