CN113463430A - Tobacco stem pulp for coating ivory board and preparation method - Google Patents
Tobacco stem pulp for coating ivory board and preparation method Download PDFInfo
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- CN113463430A CN113463430A CN202110756190.XA CN202110756190A CN113463430A CN 113463430 A CN113463430 A CN 113463430A CN 202110756190 A CN202110756190 A CN 202110756190A CN 113463430 A CN113463430 A CN 113463430A
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- tobacco
- pulp
- tobacco stem
- pulping
- preparation
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Links
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 101
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000011248 coating agent Substances 0.000 title claims abstract description 13
- 238000000576 coating method Methods 0.000 title claims abstract description 13
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 241000208125 Nicotiana Species 0.000 claims abstract description 100
- 238000004537 pulping Methods 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 16
- 239000007790 solid phase Substances 0.000 claims abstract description 10
- 238000000605 extraction Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000000227 grinding Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 18
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 9
- 235000019504 cigarettes Nutrition 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002344 surface layer Substances 0.000 abstract description 6
- 239000012792 core layer Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 15
- 239000000835 fiber Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013055 pulp slurry Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
Landscapes
- Paper (AREA)
Abstract
The invention discloses tobacco stem pulp for coating ivory board and a preparation method thereof, belonging to the field of processing and recycling of cigarette byproducts. The preparation method comprises the following steps: (1) extracting; (2) solid-phase filter pressing; (3) high-concentration pulping; (4) and (5) microwave drying. The invention also discloses the tobacco stalk pulp obtained by the preparation method and application thereof. The tobacco stem pulp belongs to mechanical pulp, and compared with chemical pulp of tobacco stems, the chemical pulp of tobacco stems does not need to be used in the production process, the production is green and environment-friendly, the energy consumption is low, and the pulping yield is higher. The tobacco stem pulp can be added and used on the surface layer or the core layer or the bottom layer of the coated ivory board on line.
Description
Technical Field
The invention relates to tobacco stem pulp for coating ivory board and a preparation method thereof, belonging to the field of processing and recycling of cigarette byproducts.
Background
The tobacco stems are important byproducts in the tobacco processing process, have similar components with tobacco leaves, have the functions of improving the cigarette structure, reducing the cost and reducing the tar, and are always important components of cigarette raw materials, and the tobacco stems used by cigarette industry enterprises at present mainly adopt cut stems and reconstituted tobacco leaves. With continuous innovation of the processing technology of the reconstituted tobacco and the cut stems, the quality of the reconstituted tobacco and the cut stems of the tobacco is improved to a great extent, and the application range and the application proportion of the reconstituted tobacco and the cut stems of the tobacco in cigarette products are increased day by day. Nevertheless, each cigarette industry enterprise still has a large amount of tobacco stalk raw materials to be scrapped and burned without effective utilization, which not only pollutes the environment, but also causes waste of tobacco resources. Resource development and application of tobacco stems become one of the key research directions of tobacco science and technology workers.
At present, the resource development application of the tobacco stems in the coated white cardboard is relatively reported, for example, patent CN102127878A discloses a cigarette packet cardboard, which comprises a core layer, a surface layer and a back layer, wherein the surface layer and the back layer of the cardboard are mixed fiber pulp paper containing tobacco fibers and bast fibers, and the mixed fiber pulp comprises 6-30% by weight of tobacco fiber pulp, 5-25% by weight of bast fiber pulp, 0-25% by weight of bleached needle pulp and 40-70% by weight of bleached broad leaf pulp. Patent CN110916238A provides a tobacco stem pretreatment method for a high-speed paper machine and a white cardboard for the tobacco, the method comprises filter pressing treatment, after three times of plate frame filter pressing, organic matters in the tobacco stems are removed, the tobacco stems can be put into the high-speed paper machine, and the organic matters in the tobacco stems are more thoroughly removed by crushing the tobacco stems into powder and then carrying out a plurality of times of plate frame filter pretreatment. Patent CN106283929A discloses a coated white cardboard containing tobacco stems and/or tobacco leaves, which comprises a raw paper layer, wherein the raw paper layer comprises a surface paper layer, a core paper layer and a bottom paper layer which are sequentially stacked from top to bottom, and an optional liner paper layer located between the surface paper layer and the core paper layer, and at least one of the surface paper layer, the core paper layer, the bottom paper layer and the liner paper layer contains tobacco stems and/or tobacco leaves. The patent CN109082928B discloses a tobacco stem coated ivory board and a preparation method and application thereof, which is characterized in that tobacco stem powder with the particle size of 1-120 mu m is taken, water is added to prepare suspension, the suspension is leached and/or filter-pressed and then coated with cationic starch, and then the suspension is mixed with paper pulp slurry, and the tobacco stem coated ivory board is prepared after slurry distribution, water filtration, squeezing dehydration, drying and coating.
In the above many published reports, the application form of the tobacco stems in the coated ivory board can be divided into tobacco stem pulp and tobacco stem powder, wherein the tobacco stem powder directly added into the coated ivory board in the production process can cause a large amount of tobacco waste water, the tobacco stem powder pretreatment process is complicated, the treatment efficiency is low, and the cost is high; the tobacco stem pulp can be continuously added on line in the production process of the coated ivory board, but the publicly reported tobacco stem chemical pulp needs a large amount of cooking chemicals in the preparation process, and the yield of the tobacco stem pulp is low.
The present invention has been made to solve the above problems.
Disclosure of Invention
The invention provides a tobacco stem mechanical pulp suitable for online production of coated ivory board, a preparation method thereof and application of the tobacco stem pulp prepared by the method in coating ivory board.
The tobacco stem pulp is prepared from tobacco stem raw materials through extraction, solid-phase filter pressing, high-concentration pulping and microwave drying processes, chemicals are not used in the preparation process, the preparation process is environment-friendly, energy is saved, consumption is reduced, and pulping yield is high.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a tobacco stem pulp preparation method for coating ivory board, which comprises the following steps:
(1) carrying out hot reflux extraction on the tobacco stem raw material by using water under certain conditions;
(2) performing solid-liquid separation on the material extracted in the step (1), and performing filter pressing treatment on a solid phase part to ensure that the water content of a solid matter is less than or equal to 75 wt%;
(3) performing three-stage high-concentration pulping on the solid matters in the step (2), wherein the freeness of the tobacco stalk pulp after pulping is 300-500ml, and the water content of the tobacco stalk pulp is less than or equal to 85 wt%;
(4) and (4) carrying out microwave drying treatment on the tobacco stem pulp obtained in the step (3) to enable the water content to be less than or equal to 15 wt%, and thus obtaining the tobacco stem pulp.
Preferably, the length dimension of the tobacco stems in the step (1) is 5-20 mm.
Preferably, the hot reflux extraction solid-liquid ratio in the step (1) is 1: (4-7), the extraction temperature is 60-90 ℃, and the extraction time is 30-60 min.
Preferably, in the step (3), the gap between the first-level pulping disc mill for the three-level high-concentration pulping is 0.5-1mm, the gap between the second-level pulping disc mill is 0.3-0.5mm, and the gap between the third-level pulping disc mill is 0.1-0.3 mm.
Preferably, the microwave frequency in the step (4) is 2450Hz, and the microwave power is 30kW-200 kW.
The second aspect of the invention discloses tobacco stem pulp prepared by the preparation method.
The third aspect of the invention discloses the application of the tobacco stem pulp in coating a white cardboard surface layer, a core layer or a bottom layer.
The invention has the beneficial effects that:
1. the tobacco stem pulp belongs to mechanical pulp, and compared with chemical pulp of tobacco stems, the chemical pulp of tobacco stems does not need to be used in the production process, the production is green and environment-friendly, and the pulping yield is higher.
2. The tobacco stem pulp is used for adding the surface layer or the core layer or the bottom layer of the coated white cardboard on line for the first time, the quality index of the obtained coated white cardboard is the same as or close to that of the normally produced coated white cardboard, and the technical standard requirement can be met.
3. The microwave drying method is adopted, so that the tobacco stalk pulp can be uniformly heated and quickly dehydrated, and the defects of high heating strength, long heating time and high energy consumption of the traditional drying technology are overcome.
Detailed Description
The present invention will be described in detail and fully with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments obtained by a person skilled in the art without inventive step are within the scope of protection of the present invention.
Example 1
The preparation method of the tobacco stem pulp for coating the ivory board of the embodiment comprises the following steps:
step (1) extraction: carrying out hot reflux extraction on a tobacco stem raw material with the length of 50mm by using water, wherein the extraction solid-liquid ratio is 1: 4, the extraction temperature is 90 ℃, and the extraction time is 60 min;
step (2) solid-phase filter pressing: carrying out solid-liquid separation on the material extracted in the step (1), carrying out filter pressing treatment on a solid phase part, wherein the water content of a solid matter after filter pressing is 75 wt%;
step (3), high-consistency pulping: performing three-stage high-concentration pulping on the solid matter subjected to filter pressing in the step (2), wherein the disc grinding clearance of the first-stage pulping is 1mm, the disc grinding clearance of the second-stage pulping is 0.5mm, the disc grinding clearance of the third-stage pulping is 0.3mm, the freeness of tobacco stalk pulp is 300ml, and the water content of the tobacco stalk pulp is 85 wt%;
step (4), microwave drying: carrying out microwave drying treatment on the tobacco stem pulp obtained in the step (3), wherein the microwave frequency is 2450Hz, the microwave power is 30kW, and the moisture content of the tobacco stem pulp after microwave drying is 15 wt%; thus obtaining the tobacco stem pulp.
And adding the obtained tobacco stalk pulp into the surface layer of the coated ivory board on line according to the mass ratio of 4 wt% to prepare the coated ivory board containing stalk fibers.
Example 2
The preparation method of the tobacco stem pulp for coating the ivory board of the embodiment comprises the following steps:
step (1) extraction: carrying out hot reflux extraction on a tobacco stem raw material with the length of 15mm by using water, wherein the extraction solid-liquid ratio is 1: 7, the extraction temperature is 60 ℃, and the extraction time is 30 min;
step (2) solid-phase filter pressing: performing solid-liquid separation on the material extracted in the step (1), and performing filter pressing treatment on a solid phase part, wherein the water content of a solid substance after filter pressing is 70 wt%;
step (3), high-consistency pulping: performing three-stage high-concentration pulping on the solid matter subjected to filter pressing in the step (2), wherein the disc grinding clearance of the first-stage pulping is 0.5mm, the disc grinding clearance of the second-stage pulping is 0.3mm, the disc grinding clearance of the third-stage pulping is 0.1mm, the freeness of the tobacco stalk pulp is 500ml, and the water content of the tobacco stalk pulp is 80 wt%;
step (4), microwave drying: carrying out microwave drying treatment on the tobacco stem pulp obtained in the step (3), wherein the microwave frequency is 2450Hz, the microwave power is 200kW, and the moisture content of the tobacco stem pulp after microwave drying is 12 wt%; thus obtaining the tobacco stem pulp.
Adding the obtained tobacco stalk pulp into the bottom layer of the coated ivory board on line according to the mass ratio of 6 wt% to prepare the coated ivory board containing stalk fibers.
Example 3
The preparation method of the tobacco stem pulp for coating the ivory board of the embodiment comprises the following steps:
step (1) extraction: carrying out hot reflux extraction on the tobacco stem raw material with the length of 20mm by using water, wherein the extraction solid-liquid ratio is 1: 6, the extraction temperature is 85 ℃, and the extraction time is 40 min;
step (2) solid-phase filter pressing: performing solid-liquid separation on the material extracted in the step (1), performing filter pressing treatment on a solid phase part, wherein the water content of a solid matter after filter pressing is 72 wt%;
step (3), high-consistency pulping: performing three-stage high-concentration pulping on the solid matter subjected to filter pressing in the step (2), wherein the disc grinding clearance of the first-stage pulping is 0.7mm, the disc grinding clearance of the second-stage pulping is 0.4mm, the disc grinding clearance of the third-stage pulping is 0.2mm, the freeness of the tobacco stalk pulp is 400ml, and the water content of the tobacco stalk pulp is 82 wt%;
step (4), microwave drying: performing microwave drying treatment on the tobacco stem pulp obtained in the step (3), wherein the microwave frequency is 2450Hz, the microwave power is 100kW, and the moisture content of the tobacco stem pulp subjected to microwave drying is 13 wt%; thus obtaining the tobacco stem pulp.
And adding the obtained tobacco stalk pulp into a core layer of the coated ivory board on line according to the mass ratio of 10 wt% to prepare the coated ivory board containing stalk fibers.
The quality indexes of the coated white cardboard containing stalk fibers prepared in examples 1 to 3 were measured, and the results of comparative analysis of the quality indexes are shown in table 1, with the coated white cardboard produced normally as a control:
TABLE 1 quality index test results of coated white cardboard samples
From the test comparison results in table 1, it can be seen that, compared with the control sample, when the tobacco stalk pulp prepared by the present invention is added to the coated white cardboard, the quality index of the coated white cardboard is equivalent to the quality index of the normally produced coated white cardboard, and both meet the technical standard requirements.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A preparation method of tobacco stem pulp for coating ivory board is characterized by comprising the following steps:
(1) carrying out hot reflux extraction on the tobacco stem raw material by using water under certain conditions;
(2) performing solid-liquid separation on the material extracted in the step (1), and performing filter pressing treatment on a solid phase part to ensure that the water content of a solid matter is less than or equal to 75 wt%;
(3) performing three-stage high-concentration pulping on the solid matters in the step (2), wherein the freeness of the tobacco stalk pulp after pulping is 300-500ml, and the water content of the tobacco stalk pulp is less than or equal to 85 wt%;
(4) and (4) carrying out microwave drying treatment on the tobacco stem pulp obtained in the step (3) to enable the water content to be less than or equal to 15 wt%, and thus obtaining the tobacco stem pulp.
2. The method for preparing the tobacco stalk as claimed in claim 1, wherein the length dimension of the tobacco stalk in the step (1) is 5-20 mm.
3. The method according to claim 1, wherein the hot reflux extraction solid-to-liquid ratio in step (1) is 1: (4-7), the extraction temperature is 60-90 ℃, and the extraction time is 30-60 min.
4. The preparation method according to claim 1, wherein in the step (3), the disc grinding clearance of the first-stage pulping in the three-stage high-consistency pulping is 0.5-1mm, the disc grinding clearance of the second-stage pulping is 0.3-0.5mm, and the disc grinding clearance of the third-stage pulping is 0.1-0.3 mm.
5. The method according to claim 1, wherein the microwave frequency in the step (4) is 2450Hz, and the microwave power is 30kW to 200 kW.
6. Tobacco stem pulp produced by the method according to any one of claims 1 to 5.
7. Use of the tobacco stem slurry according to claim 6 for coating a top, core or bottom layer of white cardboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110756190.XA CN113463430A (en) | 2021-07-05 | 2021-07-05 | Tobacco stem pulp for coating ivory board and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110756190.XA CN113463430A (en) | 2021-07-05 | 2021-07-05 | Tobacco stem pulp for coating ivory board and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113463430A true CN113463430A (en) | 2021-10-01 |
Family
ID=77877971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110756190.XA Pending CN113463430A (en) | 2021-07-05 | 2021-07-05 | Tobacco stem pulp for coating ivory board and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113463430A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640980A (en) * | 2012-03-10 | 2012-08-22 | 广东中烟工业有限责任公司 | Preparation method of tobacco sheet paper base by cabo |
| CN102640979A (en) * | 2012-03-10 | 2012-08-22 | 广东中烟工业有限责任公司 | Method for preparing reconstituted tobacco paper base made from tobacco stems |
| CN102669809A (en) * | 2012-03-10 | 2012-09-19 | 广东中烟工业有限责任公司 | Method for preparing tobacco sheet paper base from tobacco stems |
| CN104382218A (en) * | 2014-09-22 | 2015-03-04 | 华南理工大学 | Method for manufacturing tobacco sheets with paper-making process and tobacco sheets manufactured with method |
| CN112709091A (en) * | 2020-12-30 | 2021-04-27 | 珠海红塔仁恒包装股份有限公司 | Method for preparing card paper pulp and card paper |
| CN113349407A (en) * | 2021-07-05 | 2021-09-07 | 云南中烟工业有限责任公司 | Tobacco stem pulp sheet, preparation method and application |
| CN113417170A (en) * | 2021-07-06 | 2021-09-21 | 珠海红塔仁恒包装股份有限公司 | Tobacco fiber white cardboard and preparation method thereof |
-
2021
- 2021-07-05 CN CN202110756190.XA patent/CN113463430A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640980A (en) * | 2012-03-10 | 2012-08-22 | 广东中烟工业有限责任公司 | Preparation method of tobacco sheet paper base by cabo |
| CN102640979A (en) * | 2012-03-10 | 2012-08-22 | 广东中烟工业有限责任公司 | Method for preparing reconstituted tobacco paper base made from tobacco stems |
| CN102669809A (en) * | 2012-03-10 | 2012-09-19 | 广东中烟工业有限责任公司 | Method for preparing tobacco sheet paper base from tobacco stems |
| CN104382218A (en) * | 2014-09-22 | 2015-03-04 | 华南理工大学 | Method for manufacturing tobacco sheets with paper-making process and tobacco sheets manufactured with method |
| CN112709091A (en) * | 2020-12-30 | 2021-04-27 | 珠海红塔仁恒包装股份有限公司 | Method for preparing card paper pulp and card paper |
| CN113349407A (en) * | 2021-07-05 | 2021-09-07 | 云南中烟工业有限责任公司 | Tobacco stem pulp sheet, preparation method and application |
| CN113417170A (en) * | 2021-07-06 | 2021-09-21 | 珠海红塔仁恒包装股份有限公司 | Tobacco fiber white cardboard and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨晓清主编: "《包装机械与设备》", 31 March 2009, 国防工业出版社 * |
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Application publication date: 20211001 |