CN110742298B - Method for preventing tobacco sheets from being adhered during storage - Google Patents
Method for preventing tobacco sheets from being adhered during storage Download PDFInfo
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- CN110742298B CN110742298B CN201911118178.5A CN201911118178A CN110742298B CN 110742298 B CN110742298 B CN 110742298B CN 201911118178 A CN201911118178 A CN 201911118178A CN 110742298 B CN110742298 B CN 110742298B
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 104
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000003860 storage Methods 0.000 title claims abstract description 13
- 239000003223 protective agent Substances 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims description 21
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 18
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 18
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 18
- 238000004049 embossing Methods 0.000 claims description 13
- -1 pentaerythritol ester Chemical class 0.000 claims description 13
- 239000002202 Polyethylene glycol Substances 0.000 claims description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims description 11
- 238000007493 shaping process Methods 0.000 claims description 9
- 229920001661 Chitosan Polymers 0.000 claims description 7
- 229920001218 Pullulan Polymers 0.000 claims description 6
- 239000004373 Pullulan Substances 0.000 claims description 6
- 235000019423 pullulan Nutrition 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 238000007259 addition reaction Methods 0.000 claims description 4
- 238000005886 esterification reaction Methods 0.000 claims description 4
- 239000013067 intermediate product Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 43
- 239000010408 film Substances 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000007788 liquid Substances 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
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- 238000002137 ultrasound extraction Methods 0.000 description 10
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000004202 carbamide Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
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- 238000005406 washing Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
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- 230000035699 permeability Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229920002582 Polyethylene Glycol 600 Polymers 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
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- 238000010438 heat treatment Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229920002101 Chitin Polymers 0.000 description 1
- 229920001503 Glucan Polymers 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
Images
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
- A24B15/26—Use of organic solvents for extraction
-
- 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
- A24B3/12—Steaming, curing, or flavouring tobacco
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention discloses a method for preventing tobacco sheets from being adhered during storage, which comprises the following steps: the protective agent is sprayed to the tobacco sheets and dried, the tobacco sheets are molded, the contact area of the sheets is reduced, the compression elasticity of the sheets is increased, the film forming performance between the tobacco sheets is increased, the molecular motion of the contact surface of the tobacco sheets is blocked, and meanwhile, the content of moisture in the tobacco sheets can be reduced, so that adhesion is reduced.
Description
Technical Field
The invention relates to the field of tobacco sheets, in particular to a method for preventing the tobacco sheets from being adhered during storage.
Background
The tobacco sheet is one of important raw materials of cigarette products, has great influence on the quality of the cigarette products, and is also a main raw material for heating and non-combusting novel tobacco products.
The problem of adhesion is deposited to sheet among the present tobacco sheet production process is a tobacco sheet and deposits and use the great problem, because tobacco sheet preparation volume is big, generally need deposit 2-3 months, the phenomenon of adhesion can appear in the storage process, the leading cause has two, a tobacco sheet is comparatively level, after the extrusion, area of contact is big, and because tobacco sheet water content is higher, it can the adhesion to place for a long time, the second reason is, tobacco sheet itself contains water, and do not have fine diaphragm between sheet and the sheet, molecular motion leads to the adhesion.
Disclosure of Invention
In order to solve the problems, the invention provides a method for preventing the tobacco sheets from being adhered during storage, which reduces the contact area of the sheets, increases the pressure-resistant elasticity of the sheets, increases the film-forming property among the tobacco sheets, blocks the molecular motion of the contact surface of the tobacco sheets, and simultaneously can reduce the content of moisture in the tobacco sheets so as to reduce the adhesion.
The technical scheme of the invention is to provide a method for preventing tobacco sheets from being adhered during storage, which comprises the following steps: spraying a protective agent to the tobacco sheets and drying; and shaping the tobacco sheets.
Preferably, the protective agent comprises the following components in parts by weight: 1-3 parts of chitosan, 0.1-1 part of pullulan, 0.1-0.5 part of water-soluble rosin pentaerythritol ester, 1-3 parts of polyethylene glycol and 0.1-0.5 part of polyvinyl alcohol.
Preferably, the shaping mode comprises one or more of embossing roller embossing shaping and corrugation shaping.
Preferably, the drying temperature is 30-40 ℃, and the drying time is 3-5 h.
Preferably, the spraying thickness of the protective agent is 1-3 mm.
Preferably, the contact area of adjacent tobacco sheets after shaping is 50-70% based on 100% of the total area of the individual tobacco sheets.
Preferably, the preparation method of the water-soluble rosin pentaerythritol ester comprises the following steps: performing addition reaction on rosin and maleic anhydride to obtain an intermediate product; and catalytically esterifying the intermediate product and pentaerythritol to obtain the water-soluble rosin pentaerythritol ester.
Preferably, the shape of the corrugated corrugation of the corrugated shape comprises one or more of a U shape, a V shape and a UV shape.
Preferably, the addition reaction temperature is 160-190 ℃, and the reaction time is 2 h.
Preferably, the esterification reaction temperature is 210-250 ℃, and the reaction time is 2-5 h.
The protective agent chitosan used in the scheme is a natural high molecular material chitin derivative, has good film forming property, can form a semipermeable membrane on the surface of a tobacco sheet, has permeability and water resistance, keeps the respiration of the tobacco sheet, has good barrier property to water vapor and water, prevents the migration of water inside and outside the tobacco sheet, blocks the molecular motion of the contact surface of the tobacco sheet, reduces the requirement on the water content in the manufacturing process of the tobacco sheet, is favorable for storing and reducing adhesion, is natural water-soluble neutral glucan, is colorless, tasteless and nontoxic, has good film forming property, has gloss and transparent film, has lower air permeability than other high molecular films, has different molecular weights and different film forming concentration requirements, is mutually cooperated to form a film, enhances the stability of the formed film, and prevents the large flowability of a film forming solution caused by the undersize concentration of a single component, thin film, or thick film solution due to excessive concentration of single component, difficult degassing, easy formation of bubbles on the surface, and uneven film.
Rosin has good film forming property, wide source, no toxicity, transparency and stability, can inhibit water evaporation, reduce respiratory strength and the like, but rosin pentaerythritol ester has higher emulsification process difficulty, not only greatly increases production cost, but also has poor stability of the produced emulsified product and unstable film forming property, so that the method prepares the water-soluble rosin pentaerythritol ester by an esterification method, can form a film without emulsification, can enrich the fragrance of the tobacco sheet, has stronger fragrance, and simultaneously has permeability, water resistance and good barrier property of the film to water vapor and water, prevents the migration of the water inside and outside the tobacco sheet, blocks the molecular motion of the contact surface of the tobacco sheet, reduces the requirement on the water content in the manufacturing process of the tobacco sheet, and is beneficial to storage and reduction of adhesion.
The invention has the beneficial effects that:
1. the shape of the tobacco sheets is increased, so that the contact area between the sheets is reduced, the pressure-resistant elasticity of the tobacco sheets is increased, and the problems that the tobacco sheets are flat, the contact area is larger after the tobacco sheets are stored and extruded, and the tobacco sheets are adhered after being placed for a long time are solved;
2. the protective agent has good film forming property, can form a semipermeable membrane on the surface of the tobacco sheet, has permeability and water resistance, keeps the respiration of the tobacco sheet, has good barrier property to water vapor and water, prevents the migration of water inside and outside the tobacco sheet, blocks the molecular motion of the contact surface of the tobacco sheet, reduces the requirement on the water content in the manufacturing process of the tobacco sheet, and is beneficial to storage and reduction of adhesion;
3. the water-soluble rosin pentaerythritol ester is prepared by an esterification method, the film can be formed without emulsification, the fragrance of the tobacco sheet can be enriched, the fragrance is stronger, the synergistic effect of film formation is enhanced, the film is more stable, and the retention time is longer;
4. the characteristics that chitosan and pullulan can form films but have different molecular weights and different requirements on film forming concentration are utilized, the synergistic effect is enhanced, the stability of the formed films is enhanced, and the film forming liquid is prevented from being high in fluidity and thin due to too small concentration of a single component or being viscous due to too large concentration of the single component, not easy to degas, easy to form bubbles on the surfaces and uneven.
Drawings
FIG. 1 shows an embossing roller for molding according to the present embodiment;
FIG. 2 is a tobacco sheet after being pressed by the embossing roll pattern;
Detailed Description
In order to facilitate understanding of the present invention, the technical solutions of the present invention will be further described with reference to the following detailed description and the accompanying drawings, but the present invention is not limited thereto.
Example 1
Preparing water-soluble rosin pentaerythritol ester:
weighing 300 g of refined rosin, grinding, adding the refined rosin into a 500 m L four-neck flask, heating and melting, stirring when the temperature rises to about 160-.
Example 2
Preparing an anti-adhesion tobacco sheet:
carrying out manual impurity removal on the tobacco waste material, carrying out pretreatment of stem washing, and airing;
weighing 500g of the raw materials after impurity removal, putting into 2.5L of extracting solution, wherein the extracting solution is 2% aqueous solution of a urea bag agent, carrying out ultrasonic extraction at 40-60 ℃, wherein the ultrasonic extraction frequency is 3KHz-5KHz, the extraction time is 4-6h, and carrying out solid-liquid separation treatment to obtain an extracting solution;
centrifuging the extract solution at 12000r/min by a butterfly centrifuge for 3-5min to reduce the residue content, and collecting the supernatant;
concentrating the purified extract liquor to 40% by using a double-effect climbing-film evaporator to obtain a concentrated solution;
filtering the concentrated solution by a rectangular sieve of 200 meshes to obtain filtered concentrated solution; adding essence and spice into the filtered concentrated solution to prepare coating liquid according to paper-making reconstituted tobacco process specification, and coating the coating liquid on a formed substrate to prepare a tobacco leaf sheet;
drying the tobacco leaf slices to a moisture content of 8-12% and a drying temperature of 30-40 ℃;
weighing 1-3g of chitosan, 0.1-1g of pullulan, 0.1-0.5g of water-soluble rosin pentaerythritol ester, 10-30g of polyethylene glycol and 0.1-0.5g of polyvinyl alcohol, wherein the polyethylene glycol is PEG200-PEG600, and the polyethylene glycol is a solvent, and uniformly stirring and mixing to obtain a protective agent;
spraying a protective agent to the tobacco leaf slices under the condition of hot air, wherein the thickness of the protective agent is 1-3mm, and the protective agent can be measured by controlling the weight of the sprayed protective agent;
drying the tobacco leaf slices at the drying temperature of 30-40 ℃ for 3-5 h;
and (3) embossing the secondarily dried tobacco leaf sheets, putting the secondarily dried tobacco leaf sheets into an embossing machine for further processing, pressing the tobacco leaf sheets oppositely through two embossing rolling shafts, wherein embossing patterns are engraved on one of the two embossing rolling shafts, and embossing the tobacco leaf sheets into lines after the tobacco leaf sheets pass through the embossing machine, so that the anti-adhesion tobacco leaf sheets are obtained.
Example 3
Preparing an anti-adhesion tobacco sheet:
carrying out manual impurity removal on the tobacco waste material, carrying out pretreatment of stem washing, and airing;
weighing 500g of the raw materials after impurity removal, putting into 2.5L of extracting solution, wherein the extracting solution is 2% aqueous solution of a urea bag agent, carrying out ultrasonic extraction at 40-60 ℃, wherein the ultrasonic extraction frequency is 3KHz-5KHz, the extraction time is 4-6h, and carrying out solid-liquid separation treatment to obtain an extracting solution;
centrifuging the extract solution at 12000r/min by a butterfly centrifuge for 3-5min to reduce the residue content, and collecting the supernatant;
concentrating the purified extract liquor to 40% by using a double-effect climbing-film evaporator to obtain a concentrated solution;
filtering the concentrated solution by a rectangular sieve of 200 meshes to obtain filtered concentrated solution; adding essence and spice into the filtered concentrated solution to prepare coating liquid according to paper-making reconstituted tobacco process specification, and coating the coating liquid on a formed substrate to prepare a tobacco leaf sheet;
drying the tobacco leaf slices to a moisture content of 8-12% and a drying temperature of 30-40 ℃;
weighing 1-3g of chitosan, 0.1-1g of pullulan, 0.1-0.5g of water-soluble rosin pentaerythritol ester, 10-30g of polyethylene glycol and 0.1-0.5g of polyvinyl alcohol, wherein the polyethylene glycol is PEG200-PEG600, and the polyethylene glycol is a solvent, and uniformly stirring and mixing to obtain a protective agent;
spraying a protective agent to the tobacco leaf slices under the condition of hot air, wherein the thickness of the protective agent is 1-3mm, and the protective agent can be measured by controlling the weight of the sprayed protective agent;
drying the tobacco leaf slices at the drying temperature of 30-40 ℃ for 3-5 h;
and (3) performing corrugation modeling on the secondarily dried tobacco sheets, putting the secondarily dried tobacco sheets into a corrugated board forming machine for further processing, and pressing to obtain the anti-adhesion tobacco sheets, wherein the tobacco sheets are one or more of U-shaped, V-shaped and UV-shaped tobacco sheets.
Example 4
Comparative example 1:
carrying out manual impurity removal on the tobacco waste material, carrying out pretreatment of stem washing, and airing;
weighing 500g of the raw materials after impurity removal, putting into 2.5L of extracting solution, wherein the extracting solution is 2% aqueous solution of a urea bag agent, carrying out ultrasonic extraction at 40-60 ℃, wherein the ultrasonic extraction frequency is 3KHz-5KHz, the extraction time is 4-6h, and carrying out solid-liquid separation treatment to obtain an extracting solution;
centrifuging the extract solution at 12000r/min by a butterfly centrifuge for 3-5min to reduce the residue content, and collecting the supernatant;
concentrating the purified extract liquor to 40% by using a double-effect climbing-film evaporator to obtain a concentrated solution;
filtering the concentrated solution by a rectangular sieve of 200 meshes to obtain filtered concentrated solution; adding essence and spice into the filtered concentrated solution to prepare coating liquid according to paper-making reconstituted tobacco process specification, and coating the coating liquid on a formed substrate to prepare a tobacco leaf sheet;
drying the tobacco leaf slices to a moisture content of 8-12% and a drying temperature of 30-40 ℃;
weighing 1-3g of chitosan, 0.1-1g of pullulan, 0.1-0.5g of water-soluble rosin pentaerythritol ester, 10-30g of polyethylene glycol and 0.1-0.5g of polyvinyl alcohol, wherein the polyethylene glycol is PEG200-PEG600, and the polyethylene glycol is a solvent, and uniformly stirring and mixing to obtain a protective agent;
spraying a protective agent to the tobacco leaf slices under the condition of hot air, wherein the thickness of the protective agent is 1-3mm, and the protective agent can be measured by controlling the weight of the sprayed protective agent;
and drying the tobacco leaf sheets at the drying temperature of 30-40 ℃ for 3-5h to obtain the tobacco sheets 1.
Example 5
Comparative example 2
Carrying out manual impurity removal on the tobacco waste material, carrying out pretreatment of stem washing, and airing;
weighing 500g of the raw materials after impurity removal, putting into 2.5L of extracting solution, wherein the extracting solution is 2% aqueous solution of a urea bag agent, carrying out ultrasonic extraction at 40-60 ℃, wherein the ultrasonic extraction frequency is 3KHz-5KHz, the extraction time is 4-6h, and carrying out solid-liquid separation treatment to obtain an extracting solution;
centrifuging the extract solution at 12000r/min by a butterfly centrifuge for 3-5min to reduce the residue content, and collecting the supernatant;
concentrating the purified extract liquor to 40% by using a double-effect climbing-film evaporator to obtain a concentrated solution;
filtering the concentrated solution by a rectangular sieve of 200 meshes to obtain filtered concentrated solution; adding essence and spice into the filtered concentrated solution to prepare coating liquid according to paper-making reconstituted tobacco process specification, and coating the coating liquid on a formed substrate to prepare a tobacco leaf sheet;
drying the tobacco leaf slices to a moisture content of 8-12% and a drying temperature of 30-40 ℃;
and (3) taking the dried tobacco leaf sheets for corrugated molding, taking the tobacco leaf sheets subjected to secondary drying, further processing the tobacco leaf sheets in a corrugated board forming machine, and pressing to obtain the tobacco leaf sheets 2, wherein the tobacco leaf sheets are one or more of U-shaped, V-shaped and UV-shaped tobacco leaf sheets.
Example 6
Carrying out manual impurity removal on the tobacco waste material, carrying out pretreatment of stem washing, and airing;
weighing 500g of the raw materials after impurity removal, putting into 2.5L of extracting solution, wherein the extracting solution is 2% aqueous solution of a urea bag agent, carrying out ultrasonic extraction at 40-60 ℃, wherein the ultrasonic extraction frequency is 3KHz-5KHz, the extraction time is 4-6h, and carrying out solid-liquid separation treatment to obtain an extracting solution;
centrifuging the extract solution at 12000r/min by a butterfly centrifuge for 3-5min to reduce the residue content, and collecting the supernatant;
concentrating the purified extract liquor to 40% by using a double-effect climbing-film evaporator to obtain a concentrated solution;
filtering the concentrated solution by a rectangular sieve of 200 meshes to obtain filtered concentrated solution; according to the technical specification of reconstituted tobacco by a paper-making method, essence and spice are added into the filtered concentrated solution to prepare coating liquid, and the coating liquid is coated on a formed substrate to prepare a tobacco leaf slice 3.
Example 7
The adhesion condition of the tobacco flakes prepared in the examples 2 to 6 after being stored for 1 to 3 months and the water content of the tobacco flakes are detected, and the results are shown in table 1, which shows that the tobacco flakes prepared by the scheme have good anti-adhesion performance and stable water holding capacity.
TABLE 1 measurement of tobacco flake adhesion and moisture content
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (9)
1. A method of preventing adhesion in storage of tobacco sheets, comprising the steps of:
spraying a protective agent to the tobacco sheets and drying;
shaping the tobacco sheet;
the protective agent comprises the following components in parts by weight: 1-3 parts of chitosan, 0.1-1 part of pullulan, 0.1-0.5 part of water-soluble rosin pentaerythritol ester, 10-30 parts of polyethylene glycol and 0.1-0.5 part of polyvinyl alcohol.
2. The method for preventing the tobacco sheets from being adhered during storage according to claim 1, wherein the shaping mode comprises one or more of embossing roller embossing shaping and corrugation shaping.
3. The method of claim 1, wherein the drying temperature is 30-40 ℃ and the drying time is 3-5 h.
4. The method of claim 1, wherein the protective agent is sprayed to a thickness of 1-3 mm.
5. The method of claim 1, wherein the contact area between adjacent tobacco sheets after forming is 50-70% of the total area of the tobacco sheets as 100%.
6. The method for preventing tobacco sheets from storage blocking according to claim 2, wherein the water-soluble rosin pentaerythritol ester is prepared by a method comprising the steps of:
performing addition reaction on rosin and maleic anhydride to obtain an intermediate product;
and catalytically esterifying the intermediate product and pentaerythritol to obtain the water-soluble rosin pentaerythritol ester.
7. The method for preventing tobacco sheets from being stuck during storage according to claim 2, wherein the corrugated shape of the corrugated corrugations comprises one or more of a U shape, a V shape and a UV shape.
8. The method as claimed in claim 6, wherein the temperature of the addition reaction is 160-190 ℃ and the reaction time is 2 h.
9. The method as claimed in claim 6, wherein the esterification reaction temperature is 210 ℃ and 250 ℃ and the reaction time is 2-5 h.
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| CN113693260B (en) * | 2020-05-20 | 2023-02-21 | 秦皇岛烟草机械有限责任公司 | A method of forming a homogenized tobacco sheet |
| CN111838747B (en) * | 2020-07-23 | 2022-07-01 | 广东省金叶科技开发有限公司 | Stripping composition, stripping reagent, application thereof, preparation method of stripping reagent and method for stripping reconstituted tobacco |
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