CN110338449A - A kind of preparation method of concentrate in low viscosity papermaking-method reconstituted tobaccos production process - Google Patents
A kind of preparation method of concentrate in low viscosity papermaking-method reconstituted tobaccos production process Download PDFInfo
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- CN110338449A CN110338449A CN201910619528.XA CN201910619528A CN110338449A CN 110338449 A CN110338449 A CN 110338449A CN 201910619528 A CN201910619528 A CN 201910619528A CN 110338449 A CN110338449 A CN 110338449A
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- concentrate
- papermaking
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- reconstituted tobaccos
- production process
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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
- 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
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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
- A24B3/14—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)
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Abstract
The present invention relates to a kind of preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process, the method includes at least following steps: 1) tobacco material is extracted with water, and tobacco extraction liquid crude liquid is collected after extracting；2) extract liquor after obtaining primary purification after being pre-processed the tobacco extraction liquid crude liquid；3) extract liquor for obtaining step 2) is filtered by membranous system；4) extract liquor for obtaining step 3) is through being concentrated under reduced pressure to give concentrate.The membrane technology reduction viscosity effect that this method uses is significant, and without adding any chemical assistant, convenient online grafting is, it can be achieved that continuous production, has certain industrial applications meaning.
Description
Technical field
The present invention relates to papermaking-method reconstituted tobaccos field more particularly to a kind of low viscosity papermaking-method reconstituted tobaccos production processes
In concentrate preparation method.
Background technique
Papermaking-method reconstituted tobaccos are to extract the tobacco wastes such as offal, offal or tobacco cut by extraction to realize solid-liquid point
From gained extract liquor is concentrated to be made certain density concentrate, while gained solid size system in such a way that paper machine is manufactured paper with pulp
Substrate is obtained, concentrate and substrate are then realized to recombination in coating system, a kind of final resulting cigarette of drying cutting is former
Material.Since its effect in terms of the reducing tar and reducing harm of cigarette is larger, thus its in cigarette industry using increasingly extensive.
Currently, most enterprises extract tobacco resulting after separation of solid and liquid in the production process of papermaking-method reconstituted tobaccos
Take liquid that simple vibration sieve or centrifuge etc. is only taken to carry out purified treatment, the fine particle and protein that suspend in liquid, pectin,
The macromolecular substances such as starch cannot be effectively removed, and gained concentration fluid viscosity is higher after this will will cause extract liquor concentration, be applied
It is unfavorable for absorption of the substrate to coating fluid during cloth, more sicker rests on substrate surface after drying, and then causes to produce
Phenomena such as being also easy to produce agglomeration when product surfaces of tacky and storage.Therefore, new extract liquor purification techniques is found for tobacco extraction liquid
Advanced treating it is extremely urgent with the viscosity for reducing concentrate.
The water extraction and alcohol precipitation method being used widely in industry is produced in Chinese medicine, since easy to operate, processing is convenient, by patent
CN102524934A uses for reference come for purifying to tobacco extract, and main purpose is the pectin removed in extracting solution, but cigarette
Careless extracting solution, which carries out alcohol precipitation, will expend a large amount of ethyl alcohol, and cost recovery is high, and economic serviceability is poor, and ethyl alcohol is inflammable, in high volume answers
Larger security risk will be brought for Workshop Production, therefore the feasibility for using this method to reduce tobacco concentration fluid viscosity is not high.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of paper-making method reconstructed cigarettes of low viscosity
The preparation method of concentrate in leaf production process.
In order to achieve the above objects and other related objects, first aspect present invention provides a kind of paper-making method reconstructed cigarette of low viscosity
The preparation method of concentrate in leaf production process, the method include at least following steps:
1) tobacco material is extracted with water, and tobacco extraction liquid crude liquid is collected after extracting；
2) extract liquor after obtaining primary purification after being pre-processed the tobacco extraction liquid crude liquid；
3) extract liquor for obtaining step 2) is filtered by membranous system；
4) extract liquor for obtaining step 3) is through being concentrated under reduced pressure to give concentrate.
Second aspect of the present invention provides the preparation side of the concentrate in aforementioned low viscosity papermaking-method reconstituted tobaccos production process
Purposes of the method in papermaking-method reconstituted tobaccos preparation.
The invention has the benefit that
The invention purifies tobacco extraction liquid using film device, can reduce extract liquor dregginess, and remove removing protein
The macromolecular substances such as matter.Gained concentration fluid viscosity reduces 35~53%.And product sensory quality makes moderate progress.The present invention utilizes
Silicon carbide film component has carried out filtration treatment to tobacco extraction liquid, while reducing extract liquor dregginess, can effectively remove one
The macromoleculars sicker such as quantitative protein, pectin and starch, so that concentration fluid viscosity is substantially lower.This aspect helps to delay
Fouling of evaporator phenomenon in concentration process is solved, and then reduces concentration energy consumption；On the other hand, be conducive in coating process substrate to painting
The absorption of cloth liquid avoids product surface tacky and reduces the probability for generating agglomeration when product storage.In addition, the aesthetic quality of product
Also it makes moderate progress.The membrane technology reduction viscosity effect that this method uses is significant, convenient to exist without adding any chemical assistant
Line grafting has certain industrial applications meaning, it can be achieved that continuous production.
Detailed description of the invention
Fig. 1 is shown as the preparation side using the concentrate in viscosity papermaking-method reconstituted tobaccos production process of the present invention
The flow chart of method progress papermaking-method reconstituted tobaccos preparation.
Specific embodiment
The preparation method of concentrate in low viscosity papermaking-method reconstituted tobaccos production process of the present invention, includes at least
Following steps:
1) tobacco material is extracted with water, and tobacco extraction liquid crude liquid is collected after extracting；
2) extract liquor after obtaining primary purification after being pre-processed the tobacco extraction liquid crude liquid；
3) extract liquor for obtaining step 2) is filtered by membranous system；
4) extract liquor for obtaining step 3) is through being concentrated under reduced pressure to give concentrate.
Further, in step 1), the tobacco material includes offal and piece end.
In one embodiment, the tobacco material proportion are as follows: offal and piece end mass ratio 3:(2~4.5).
In step 2), the pretreatment be tobacco extraction liquid crude liquid is passed sequentially through vibration sieve, decanter centrifuge and dish-style from
Scheming is handled.
In one embodiment, the vibration mesh size is 80~150 mesh；The decanter centrifuge rotational frequency >=
40Hz；The disk centrifugal separator deslagging period is 90~150s.Pretreated purpose is to carry out tobacco extraction liquid preliminary net
Change, remove the impurity such as the fiber fines left in extraction process, reduces the pollution to subsequent precision purification extract liquor equipment.
In step 3), the membranous system is silicon carbide film component.UF membrane is through film using selectivity as separating medium, root
Transmembrane pressure according to film two sides is motive force, and the substance of different molecular weight or partial size is realized to isolated technology.By selecting not
Solid granulates insoluble matter and macromolecular colloid substance in same type and the membrane module alternative in aperture removal extract liquor, help
In the viscosity for reducing subsequent concentration liquid.
The silicon carbide film component includes silicon carbide film, and the membrane aperture of the silicon carbide film is 40~100nm.
In one embodiment, the operation temperature for using the silicon carbide film component to be filtered is 50~55 DEG C, behaviour
Making pressure is 0.3~0.32MPa.
In one embodiment, in step 4), the density of the concentrate is 1185 ± 5kg/m3, the concentrate
Viscosity is 8.5~14.3cP.
In one embodiment, in step 4), viscosity number measurement is carried out to the concentrate.
In one embodiment, viscosimetric analysis temperature is 35 ± 2 DEG C.For convenient for compliance test result and comparative analysis, concentration
Liquid density and viscosity measuring temperature need to be controlled in same level.
The present invention also provides the preparation methods of the concentrate in aforementioned low viscosity papermaking-method reconstituted tobaccos production process to make
Purposes in the preparation of paper method reconstituted tobacco.
Further, the papermaking-method reconstituted tobaccos preparation includes the following steps: for the concentrate to be applied on substrate,
Reconstituted tobacco is made through drying, cutting.
In one embodiment, it is 35~40% that the concentrate, which is applied to the spreading rate on substrate,.
The spreading rate refers to that the substrate dip-coating object oven-dry weight of reconstituted tobacco accounts for the percent value of reconstituted tobacco oven-dry weight,
It is spreading rate=[(finished product over dry quantitative-substrate over dry quantitative)/finished product over dry is quantitative] × 100% with formulae express.
In one embodiment, the drying temperature is 100~120 DEG C, and drying time is 4~8min.
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
It should be clear that in the following example not specifically dated process equipment or device be all made of conventional equipment in the art or
Device；All pressure values and range all refer to absolute pressure.
In addition, it should also be understood that, one or more method and step mentioned in the present invention does not repel before and after the combination step
It can also be inserted into other methods step there may also be other methods step or between these explicitly mentioned steps, unless separately
It is described；It should also be understood that the combination connection relationship between one or more equipment/device mentioned in the present invention is not repelled
The two equipment/devices specifically mentioned before and after the unit equipment/device there may also be other equipment/device or at these it
Between can also be inserted into other equipment/device, unless otherwise indicated.Moreover, unless otherwise indicated, the number of various method steps is only
Identify the convenient tool of various method steps, rather than for the arrangement order of limitation various method steps or limits the enforceable model of the present invention
It encloses, relativeness is altered or modified, and without material changes in technical content, when being also considered as, the present invention is enforceable
Scope.
The tobacco material that embodiment uses is taken from Shanghai Tobacco Group Taicang Haiyan Tobacco Reconstituted Tobacco Co., Ltd..
Following embodiment 1-5 are all made of membranous system after the pre-treatment and have carried out advanced treating；Corresponding control experiment does not only have
It is handled using membranous system, other conditions are identical as embodiment.
Embodiment 1
Control group 1: offal and piece end 3:2 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, is shaken through 80 mesh
After sieve, decanter centrifuge (rotational frequency 42Hz) and disk centrifugal separator (the deslagging period is 120s) pretreatment, gained extract liquor warp
Being concentrated under reduced pressure to give density is 1183kg/m3Concentrate, measured at 35 DEG C viscosity number be 20.7cP.
Test group 1: offal and piece end 3:2 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, is shaken through 80 mesh
After sieve, decanter centrifuge (rotational frequency 42Hz) and disk centrifugal separator (the deslagging period is 120s) pretreatment, it is carbonized into 40nm
Silicon fiml component is handled (wherein, operation temperature is 50 DEG C, operating pressure 0.3MPa), and gained extract liquor is through being concentrated under reduced pressure
It is 1183kg/m to density3Concentrate, measured at 35 DEG C viscosity number be 10.7cP, reduce 48.3% compared with check experiment.
1 concentrate of test group is applied on substrate with 38% spreading rate, in 105 DEG C of dry 6min, is made again through cutting
Make tobacco leaf.Through sensory evaluating smoking, compared with control sample, test sample makes moderate progress in terms of xylon gas and paper taste, aroma quality and fragrance
Amount is promoted, and throat's stimulation becomes smaller.
Embodiment 2
Control group 2: offal and piece end 3:3 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 120 mesh
After vibration sieve, decanter centrifuge (rotational frequency 43Hz) and disk centrifugal separator (the deslagging period is 90s) pretreatment, gained extract liquor warp
Being concentrated under reduced pressure to give density is 1182kg/m3Concentrate, measured at 35 DEG C viscosity number be 21.4cP.
Test group 2: offal and piece end 3:3 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 120 mesh
After vibration sieve, decanter centrifuge (rotational frequency 43Hz) and disk centrifugal separator (the deslagging period is 90s) pretreatment, it is carbonized into 40nm
Silicon fiml component is handled (wherein, operation temperature is 52 DEG C, operating pressure 0.31MPa), and gained extract liquor is through being concentrated under reduced pressure
Obtaining density is 1182kg/m3Concentrate, measured at 35 DEG C viscosity number be 10.8cP, reduced compared with check experiment
50.3%.
2 concentrate of test group is applied on substrate with 37% spreading rate, in 120 DEG C of dry 4min, is made again through cutting
Make tobacco leaf.Through sensory evaluating smoking, compared with control sample, test sample makes moderate progress in terms of xylon gas and paper taste, and throat's stimulation becomes smaller.
Embodiment 3
Control group 3: offal and piece end 3:3 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 120 mesh
After vibration sieve, decanter centrifuge (rotational frequency 43Hz) and disk centrifugal separator (the deslagging period is 90s) pretreatment, gained extract liquor warp
Being concentrated under reduced pressure to give density is 1186kg/m3Concentrate, measured at 35 DEG C viscosity number be 22.3cP.
Test group 3: offal and piece end 3:3 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 120 mesh
After vibration sieve, decanter centrifuge (rotational frequency 43Hz) and disk centrifugal separator (the deslagging period is 90s) pretreatment, it is carbonized into 40nm
Silicon fiml component is handled (wherein, operation temperature is 55 DEG C, operating pressure 0.32MPa), and gained extract liquor is through being concentrated under reduced pressure
Obtaining density is 1186kg/m3Concentrate, measured at 35 DEG C viscosity number be 10.4cP, reduced compared with check experiment
53.2%.
3 concentrate of test group is applied on substrate with 35% spreading rate, in 100 DEG C of dry 8min, is made again through cutting
Make tobacco leaf.Through sensory evaluating smoking, compared with control sample, test sample makes moderate progress in terms of xylon gas and paper taste, aroma quality and fragrance
Amount is promoted, and throat's stimulation becomes smaller.
Embodiment 4
Control group 4: offal and piece end 3:3 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 120 mesh
After vibration sieve, decanter centrifuge (rotational frequency 43Hz) and disk centrifugal separator (the deslagging period is 90s) pretreatment, gained extract liquor warp
Being concentrated under reduced pressure to give density is 1186kg/m3Concentrate, measured at 35 DEG C viscosity number be 22.3cP.
Test group 4: offal and piece end 3:3 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 120 mesh
After vibration sieve, decanter centrifuge (rotational frequency 43Hz) and disk centrifugal separator (the deslagging period is 90s) pretreatment, into 100nm carbon
SiClx membrane module is handled (wherein, operation temperature is 55 DEG C, operating pressure 0.32MPa), and gained extract liquor is dense through depressurizing
It is 1186kg/m that contracting, which obtains density,3Concentrate, measured at 35 DEG C viscosity number be 14.3cP, reduced compared with check experiment
35.7%.
4 concentrate of test group is applied on substrate with 35% spreading rate, in 100 DEG C of dry 8min, is made again through cutting
Make tobacco leaf.Through sensory evaluating smoking, compared with control sample, test sample makes moderate progress in terms of xylon gas and paper taste.
Embodiment 5
Control group 5: offal and piece end 3:4.5 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 150
After mesh vibration sieve, decanter centrifuge (rotational frequency 42Hz) and disk centrifugal separator (the deslagging period is 150s) pretreatment, gained extraction
It is 1185kg/m that liquid, which is concentrated under reduced pressure to give density,3Concentrate, measured at 35 DEG C viscosity number be 17.6cP.
Test group 5: offal and piece end 3:4.5 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 150
After mesh vibration sieve, decanter centrifuge (rotational frequency 42Hz) and disk centrifugal separator (the deslagging period is 150s) pretreatment, into 40nm
Silicon carbide film component is handled (wherein, operation temperature is 52 DEG C, operating pressure 0.31MPa), and gained extract liquor is through depressurizing
Being concentrated to get density is 1185kg/m3Concentrate, measured at 35 DEG C viscosity number be 8.5cP, reduced compared with check experiment
51.6%.
5 concentrate of test group is applied on substrate with 36% spreading rate, in 105 DEG C of dry 6min, is made again through cutting
Make tobacco leaf.Through sensory evaluating smoking, compared with control sample, test sample makes moderate progress in terms of xylon gas and paper taste, aroma quality and fragrance
Amount is promoted, and throat's stimulation becomes smaller.
Embodiment 6
Control group 6: offal and piece end 3:4.5 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 80 mesh
After vibration sieve, decanter centrifuge (rotational frequency 40Hz) and disk centrifugal separator (the deslagging period is 140s) pretreatment, gained extract liquor
Being concentrated under reduced pressure to give density is 1180kg/m3Concentrate, measured at 33 DEG C viscosity number be 19.5cP.
Test group 6: offal and piece end 3:4.5 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 80 mesh
After vibration sieve, decanter centrifuge (rotational frequency 40Hz) and disk centrifugal separator (the deslagging period is 140s) pretreatment, into 65nm carbon
SiClx membrane module is handled (wherein, operation temperature is 52 DEG C, operating pressure 0.31MPa), and gained extract liquor is dense through depressurizing
It is 1180kg/m that contracting, which obtains density,3Concentrate, measured at 33 DEG C viscosity number be 11.2cP, compared with check experiment reduce
42.8%.
6 concentrate of test group is applied on substrate with 40% spreading rate, in 115 DEG C of dry 5min, is made again through cutting
Make tobacco leaf.Through sensory evaluating smoking, compared with control sample, test sample makes moderate progress in terms of xylon gas and paper taste, aroma quality and fragrance
Amount is promoted, and throat's stimulation becomes smaller.
Embodiment 7
Control group 7: offal and piece end 3:4.5 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 150
After mesh vibration sieve, decanter centrifuge (rotational frequency 40Hz) and disk centrifugal separator (the deslagging period is 140s) pretreatment, gained extraction
It is 1190kg/m that liquid, which is concentrated under reduced pressure to give density,3Concentrate, measured at 37 DEG C viscosity number be 18.7cP.
Test group 7: offal and piece end 3:4.5 (mass ratio) plus water extraction are pressed, extract liquor crude liquid is obtained after extracting, through 150
After mesh vibration sieve, decanter centrifuge (rotational frequency 40Hz) and disk centrifugal separator (the deslagging period is 140s) pretreatment, into 65nm
Silicon carbide film component is handled (wherein, operation temperature is 55 DEG C, operating pressure 0.31MPa), and gained extract liquor is through depressurizing
Being concentrated to get density is 1190kg/m3Concentrate, measured at 37 DEG C viscosity number be 10.3cP, reduced compared with check experiment
45.1%.
7 concentrate of test group is applied on substrate with 35% spreading rate, in 110 DEG C of dry 7min, is made again through cutting
Make tobacco leaf.Through sensory evaluating smoking, compared with control sample, test sample makes moderate progress in terms of xylon gas and paper taste, aroma quality and fragrance
Amount is promoted, and throat's stimulation becomes smaller.
The above, only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that under the premise of not departing from the method for the present invention, can also be made for those skilled in the art
Several improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are equivalent embodiment of the invention；Meanwhile all substantial technologicals pair according to the present invention
The variation, modification and evolution of any equivalent variations made by above-described embodiment, still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process, which is characterized in that the side
Method includes at least following steps:
1) tobacco material is extracted with water, and tobacco extraction liquid crude liquid is collected after extracting；
2) extract liquor after obtaining primary purification after being pre-processed the tobacco extraction liquid crude liquid；
3) extract liquor for obtaining step 2) is filtered by membranous system；
4) extract liquor for obtaining step 3) is through being concentrated under reduced pressure to give concentrate.
2. the preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process as described in claim 1, special
Sign is, further includes one or more in following characteristics:
A. in step 1), the tobacco material includes offal and piece end；
B. in step 2), the pretreatment be extract liquor crude liquid is passed sequentially through vibration sieve, decanter centrifuge and disk centrifugal separator into
Row processing；
C. in step 4), the density of the concentrate is 1185 ± 5kg/m3, the viscosity of the concentrate is 8.5~14.3cP.
3. the preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process as claimed in claim 2, special
Sign is, when including feature a, the tobacco material proportion are as follows: offal is 3:(2~4.5 with piece end mass ratio).
4. the preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process as claimed in claim 2, special
Sign is that, when including feature b, the vibration mesh size is 80~150 mesh；The decanter centrifuge rotational frequency >=40 Hz；Institute
Stating the disk centrifugal separator deslagging period is 90~150s.
5. the preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process as described in claim 1, special
Sign is, in step 3), the membranous system is silicon carbide film component.
6. the preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process as claimed in claim 5, special
Sign is that the silicon carbide film component includes silicon carbide film, and the membrane aperture of the silicon carbide film is 40~100nm.
7. the preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process as claimed in claim 6, special
Sign is, the operation temperature for using the silicon carbide film component to be filtered for 50~55 DEG C, operating pressure is 0.3~
0.32MPa。
8. the preparation method of the concentrate in low viscosity papermaking-method reconstituted tobaccos production process as claimed in claim 1
Purposes in papermaking-method reconstituted tobaccos preparation.
9. purposes as claimed in claim 8, which is characterized in that papermaking-method reconstituted tobaccos preparation include the following steps: by
The concentrate is applied on substrate, and reconstituted tobacco is made through drying, cutting.
10. purposes as claimed in claim 9, which is characterized in that further include one or more in following characteristics:
1) it is 35~40% that the concentrate, which is applied to the spreading rate on substrate,；
2) drying temperature is 100~120 DEG C, and drying time is 4~8min.
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Citations (6)
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|---|---|---|---|---|
| DE2149585A1 (en) * | 1970-10-08 | 1972-04-13 | Imasco Ltd | Method of rebuilding tobacco |
| CN101708063A (en) * | 2009-12-23 | 2010-05-19 | 湖南中烟工业有限责任公司 | Method for concentrating extraction liquid in production of tobacco sheet by papermaking process |
| CN103349351A (en) * | 2013-07-24 | 2013-10-16 | 江苏久吾高科技股份有限公司 | Method for reconstituting tobacco leaves by paper making method based on membrane separation technique |
| CN103919272A (en) * | 2014-04-25 | 2014-07-16 | 安徽中烟再造烟叶科技有限责任公司 | Cryo-concentration system and method for reconstituted tobacco extraction liquid |
| CN104489893A (en) * | 2014-12-29 | 2015-04-08 | 安徽中烟再造烟叶科技有限责任公司 | System and technology for purifying coating liquid for reconstituted tobacco made by paper-making process |
| CN104667747A (en) * | 2015-02-02 | 2015-06-03 | 杭州利群环保纸业有限公司 | Method for deeply removing impurities from tobacco leaching solution by silicon carbide film method |
-
2019
- 2019-07-10 CN CN201910619528.XA patent/CN110338449A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2149585A1 (en) * | 1970-10-08 | 1972-04-13 | Imasco Ltd | Method of rebuilding tobacco |
| CN101708063A (en) * | 2009-12-23 | 2010-05-19 | 湖南中烟工业有限责任公司 | Method for concentrating extraction liquid in production of tobacco sheet by papermaking process |
| CN103349351A (en) * | 2013-07-24 | 2013-10-16 | 江苏久吾高科技股份有限公司 | Method for reconstituting tobacco leaves by paper making method based on membrane separation technique |
| CN103919272A (en) * | 2014-04-25 | 2014-07-16 | 安徽中烟再造烟叶科技有限责任公司 | Cryo-concentration system and method for reconstituted tobacco extraction liquid |
| CN104489893A (en) * | 2014-12-29 | 2015-04-08 | 安徽中烟再造烟叶科技有限责任公司 | System and technology for purifying coating liquid for reconstituted tobacco made by paper-making process |
| CN104667747A (en) * | 2015-02-02 | 2015-06-03 | 杭州利群环保纸业有限公司 | Method for deeply removing impurities from tobacco leaching solution by silicon carbide film method |
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Application publication date: 20191018 |