CN102845827B - Paper making method reproduced tobacco leaf pulping process - Google Patents
Paper making method reproduced tobacco leaf pulping process Download PDFInfo
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- CN102845827B CN102845827B CN201210292967.2A CN201210292967A CN102845827B CN 102845827 B CN102845827 B CN 102845827B CN 201210292967 A CN201210292967 A CN 201210292967A CN 102845827 B CN102845827 B CN 102845827B
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Abstract
The invention relates to the technical field of paper making method tobacco leaf thin sheet production, in particular to a paper making method reproduced tobacco leaf pulping process of tobacco raw materials in a pulping section in the production process. The invention provides the paper making method reproduced tobacco leaf pulping process, which comprises the following steps that the tobacco thin sheet raw materials are subjected to digestion after being mixed, the materials obtained after the digestion are filtered and separated, the obtained insoluble ingredients are uniformly mixed to be used as pulping raw materials, the pulping raw materials are subjected to pulping and concentration regulation, a multi-stage pulping process is adopted, and obtained pulp is subjected to pulp beating. The pulping process provided by the invention has the advantages that the fiber length is sufficiently maintained, the wet weight of the pulp is effectively improved, meanwhile, various raw material particles and small sheets in the tobacco pulp can also be sufficiently defibered, the uniform form and size of the fiber are maintained, and the tobacco substrate uniformity is effectively improved.
Description
Technical field
The present invention relates to tobacco sheets by paper making method production technical field, relate in particular to follow-on tobacco material a kind of papermaking-method reconstituted tobaccos pulping process of pulping section in process of production.
Background technology
In prior art, papermaking-method reconstituted tobaccos refers to tobacco wastes such as offal discarded in production of cigarettes process, offal and low inferior tobacco leaves through extraction, slurrying and papermaking process, the principle of producing with paper process is prepared substrate, and apply tobacco extracts, what produce meets the laminar tobacco regenerative raw materials that cigarette composition requires.
Reconstituted tobacoo (tobacco sheet) claim again recombination tobacco leaf, homogeneous tobacco leaf.Mainly add adhesive and other additives etc. to form by offal, fragment, offal or discarded tobacco leaf.Conventional adhesive has carboxymethyl cellulose and various cellulose derivative, also can use the extract of pectin, natural gum and other natural materials.Reconstituted tobacoo can be used as tobacco product raw material, is used for replacing natural cigar binder (seeing cigar), has now been widely used as raw material of cigarette.The need that product is used as cigar binder are rolled into discoid, and the need of being used as raw material of cigarette are cut into sheet.Utilize tobacco low order raw material to laminate to have that cost is low, fillibility well and can reduce in flue gas the advantages such as tar content.The manufacture of reconstituted tobacoo starts from the 1950's, and its manufacture method mainly contains 3 kinds of paper process, thick slurry method and roll-in methods.
Existing reconstituted tobacoo production technology is mainly used for reference the processing method of the grass as raw material in traditional papermaking.Conventionally adopt the high dense mill of abrasive disk type to pull an oar.To avoid fibre cutting as far as possible, the method for employing is similar to short fiber shiny beating, mainly fiber is carried out to wire-dividing broom purification.Use for reference the method for the processing grass class paper pulp in traditional pulping and paper-making theory completely, although can obtain equally the slurry of certain beating degree, but mainly there is following defect: in tobacco material, provide the material total amount of fiber to be no more than 60%, rest materials is not the pulping raw material on ordinary meaning; If use high dense mill slurrying, for guaranteeing not contain large granular impurity in slurry, need the higher electric current of application to carry out slurrying, bring current fluctuation; Higher electric current causes cutting action aggravation, and the pulp fiber length obtaining is too low; Use high dense mill can not effectively process the non-fiber impurity in slurry.
Summary of the invention
The shortcoming of prior art in view of the above, for solving the problems of the prior art, first aspect present invention provides follow-on tobacco material a kind of papermaking-method reconstituted tobaccos pulping process of pulping section in process of production, comprises the following steps:
(1) after will tobacco sheet material mixing, carry out lixiviate, the consisting of of described tobacco sheet material:
Offal, length is 2-7cm 45-55wt%;
40～60 order offal 20-30wt%;
Surplus is tobacco chippings;
(2) by step 1 gained material isolated by filtration, gained insoluble composition is mixed as pulping raw material;
(3) pulping raw material of step 2 gained being carried out to slurrying adjusts dense;
(4) adopt multistage pulping process, the slurry of step 2 gained is pulled an oar.
Described multistage pulping process refers to and adopts multiple different beating process condition, and slurry is pulled an oar, and under every kind of beating process condition, can repeatedly pull an oar to slurry.(slurry is crossed a grinding machine, has been a slurrying)
In described tobacco sheet material, the kind of offal there is no particular/special requirement.
Described offal and tobacco chippings are the tobacco waste in production of cigarettes process.
Concrete, the tiny graininess tobacco powder of offal for producing in production of cigarettes process; Tobacco chippings is the general tobacco chippings for producing in production of cigarettes process.
Preferably, the solvent that the leaching process in described step 1 uses is water, the weight of tobacco sheet material: the weight=1:4-7 of water, extraction time is 20-40min.The object of described leaching process is the water-soluble components of extracting in described tobacco sheet material.
Preferably, in described step 3, the dense solvent used of slurrying tune is water, and the concentration of gained slurry is 3.5-4.5wt%.
The concentration of described slurry is the content of slurry gross dry weight in slurries.
Preferably, the multistage pulping process in described step 4 is dual unit sizing process, and described dual unit sizing process comprises the following steps:
(a) slurry of step 3 gained is carried out to elementary slurrying: adopt disc mill slurrying, control slurrying electric current and prevent that slurry from cutting off, slurrying condition is: slurrying electric current 50-70A, slurrying flow 55-65m
3/ h, mill revolution 780-1180rpm, enters to starch pressure 0.15-0.25Mpa, and repetitive cycling slurrying under identical condition, and the beating degree of gained slurry is 30-40 ° of SR, and weight in wet base is 6-10g.
In the present invention, beating degree and weight in wet base all adopt degree Schopper-Riegler instrument to measure, and measuring method is with reference to GB/T3332-1982.
(b) slurry of step a gained is carried out to secondary slurrying: adopt disc mill or the slurrying of cone mill pulper, slurrying condition is: slurrying electric current 70-90A, slurrying flow is 55-65m
3/ h, mill revolution is 780-1180rpm, entering to starch pressure is 0.15-0.25Mpa, repetitive cycling slurrying under identical condition, the beating degree of gained slurry is 35-45 ° of SR, weight in wet base is 3-7g.
Preferably, in step a of living in, the number of times of repetitive cycling slurrying is 6-9 time.In described repetitive cycling pulping process, slurry is crossed a grinding machine, has been a slurrying.
Preferably, the model of the disc mill in described step a is selected from the low dense double disc refiner of DD-500.
Preferably, in described step b, the number of times of repetitive cycling defibrination is 1-3 time.In described repetitive cycling pulping process, slurry is crossed a grinding machine, has been a slurrying.
Preferably, the model of the disc mill in described step b is selected from the low dense double disc refiner of DD-500, and the model of described cone mill pulper is selected from NBR-00 conical refiner.
The fiberizer of described various models all can directly be buied from the market.
Second aspect present invention provides a kind of papermaking-method reconstituted tobaccos pulping process to manufacture the application in field at reconstituted tobacoo.
As mentioned above, the follow-on tobacco raw material pulping process of one provided by the present invention, adopts the flexible making beating of multiple stage circulation (basic model of two-stage slurrying), adopts low dense pulping process, for the particularity of tobacco material, carry out successively elementary slurrying and secondary pulping process.Elementary slurrying adopts 6～9 times slurrying of low current (50-70A) circulation, avoids fiber in slurry to be cut off, wire-dividing broom purification as much as possible.Secondary slurrying adopts high electric current (70-90A) circulation 1～3 time, plays the effect of neat and well spaced slurry, improves the uniformity of slurry.
The advantage of multistage pulping process is fully to retain fibre length, when effectively improving the weight in wet base of slurry, can also fully discongest the small pieces in tobacco slurry and various feed particles, keeps the form of fiber with evenly big or small, effectively improves tobacco substrate evenness.The present invention applicability and stability problem that effectively the existing thin slice of improvement is produced, to reducing and eliminating tobacco substrate surface paper defects, improve the process stability of manufacturing paper with pulp and be of great importance.
Brief description of the drawings
Fig. 1 is the handsheet comparison diagram of the dense pulping process gained of height
Fig. 2 is the dense pulping fibre distribution of lengths contrast of height
Detailed description of the invention
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this description.The present invention can also be implemented or be applied by other different detailed description of the invention, and the every details in this description also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
As used in whole description, following abbreviation has following implication, unless obviously referred else in literary composition: DEG C=degree Celsius; Wt%=mass percent; G=gram; Rpm=rotating speed per minute; H=hour; A=ampere; Mpa=MPa; M=rice; m
3=cubic meter; Cm=centimetre; ° SR=Xiao Baierdu.
Embodiment 1
By proportioning offal (length is 3-5cm): tobacco chippings: 40～60 order offal=50wt%:30wt%:20wt% prepare tobacco sheet material, add water to carry out lixiviate, the weight of tobacco sheet material after mixing: the weight=1:5 of water, extraction time is 30min.After isolated by filtration, gained insoluble composition mixes as pulping raw material.
Add water, slurry concentration is adjusted to 25wt%, pull an oar (comparative example) by high consistency pulping technique, refining equipment is GM-750 high-density paste mill, grinding machine electric current 500A, slurrying flow 60m
3/ h, mill revolution 1200rpm, enters to starch pressure 0.20Mpa, and along with the carrying out of pulping process, when slurry pulping degree raises gradually, weight in wet base declines gradually.In the time that weight in wet base is reduced to 2.50g, slurry pulping degree is only still 26 ° of SR.
Embodiment 2
By proportioning offal (length is 3-5cm): tobacco chippings: 40～60 order offal=50wt%:30wt%:20wt% prepare tobacco sheet material, add water to carry out lixiviate, the weight of tobacco sheet material after mixing: the weight=1:5 of water, extraction time is 30min.After isolated by filtration, gained insoluble composition mixes as pulping raw material.
Add water, slurry concentration is adjusted to 4.0wt%, carry out elementary slurrying, the technological parameter of described elementary slurrying is: refining equipment is the low dense double disc refiner of DD-500, grinding machine electric current 60A, slurrying flow 60m
3/ h, mill revolution 980rpm, enter to starch pressure 0.20Mpa, the cycle-index of elementary slurrying is 9 times, and the beating degree of gained slurry is 28 ° of SR, and weight in wet base is 6.61g.Elementary slurrying gained slurry is carried out to secondary slurrying, and the technological parameter of described secondary slurrying is: refining equipment is the low dense double disc refiner of DD-500, grinding machine electric current 80A, slurrying flow 60m
3/ h, mill revolution 980rpm, enter to starch pressure 0.20Mpa, the defibrination number of times of secondary slurrying is 3 times.Final slurry pulping degree is 38 ° of SR, and weight in wet base is 4.44g, and weight in wet base has improved 78% compared with high consistency pulping.
Embodiment 3
By proportioning offal (length is 3-5cm): tobacco chippings: 40～60 order offal=50wt%:30wt%:20wt% prepare tobacco sheet material, add water to carry out lixiviate, the weight of tobacco sheet material after mixing: the weight=1:5 of water, extraction time is 30min.After isolated by filtration, gained insoluble composition mixes as pulping raw material.
Add water, slurry concentration is adjusted to 4.0wt%, carry out elementary slurrying, the technological parameter of described elementary slurrying is: refining equipment is the low dense double disc refiner of DD-500, grinding machine electric current 70A, slurrying flow 60m
3/ h, mill revolution 980rpm, enter to starch pressure 0.20Mpa, the cycle-index of elementary slurrying is 9 times, and the beating degree of gained slurry is 29 ° of SR, and weight in wet base is 6.48g.Elementary slurrying gained slurry is carried out to secondary slurrying, and the technological parameter of described secondary slurrying is: refining equipment is the low dense double disc refiner of DD-500, grinding machine electric current 90A, slurrying flow 60m
3/ h, mill revolution 980rpm, enter to starch pressure 0.20Mpa, the defibrination number of times of secondary slurrying is 3 times.Final slurry pulping degree is 40 ° of SR, and weight in wet base is 4.29g, and weight in wet base has improved 72% compared with high consistency pulping.
Embodiment 4
By proportioning offal (length is 3-5cm): tobacco chippings: 40～60 order offal=50wt%:30wt%:20wt% prepare tobacco sheet material, add water to carry out lixiviate, the weight of tobacco sheet material after mixing: the weight=1:5 of water, extraction time is 30min.After isolated by filtration, gained insoluble composition mixes as pulping raw material.
Add water, slurry concentration is adjusted to 4.5wt%, carry out elementary slurrying, the technological parameter of described elementary slurrying is: refining equipment is the low dense double disc refiner of DD-500, grinding machine electric current 50A, slurrying flow 60m
3/ h, mill revolution 980rpm, enter to starch pressure 0.20Mpa, the cycle-index of elementary slurrying is 6 times, and the beating degree of gained slurry is 24 ° of SR, and weight in wet base is 8.48g.Elementary slurrying gained slurry is carried out to secondary slurrying, and the technological parameter of described secondary slurrying is: refining equipment is the low dense double disc refiner of DD-500, grinding machine electric current 70A, slurrying flow 60m
3/ h, mill revolution 980rpm, enter to starch pressure 0.20Mpa, the defibrination number of times of secondary slurrying is 1 time.Final slurry pulping degree is 30 ° of SR, and weight in wet base is 6.10g, and weight in wet base has improved 144% compared with high consistency pulping.
Embodiment 5
By proportioning offal (length is 3-5cm): tobacco chippings: 40～60 order offal=50wt%:30wt%:20wt% prepare tobacco sheet material, add water to carry out lixiviate, the weight of tobacco sheet material after mixing: the weight=1:5 of water, extraction time is 30min.After isolated by filtration, gained insoluble composition mixes as pulping raw material.
Add water, slurry concentration is adjusted to 4.5wt%, carry out elementary slurrying, the technological parameter of described elementary slurrying is: refining equipment is the low dense double disc refiner of DD-500, grinding machine electric current 60A, slurrying flow 60m
3/ h, mill revolution 980rpm, enter to starch pressure 0.20Mpa, the cycle-index of elementary slurrying is 6 times, and the beating degree of gained slurry is 25 ° of SR, and weight in wet base is 8.38g.Elementary slurrying gained slurry is carried out to secondary slurrying, and the technological parameter of described secondary slurrying is: refining equipment is the low dense double disc refiner of DD-500, grinding machine electric current 80A, slurrying flow 60m
3/ h, mill revolution 980rpm, enter to starch pressure 0.20Mpa, the defibrination number of times of secondary slurrying is twice.Final slurry pulping degree is 38 ° of SR, and weight in wet base is 5.47g, and weight in wet base has improved 119% compared with high consistency pulping.
Embodiment 6
Low dense handsheet preparation: carry out handsheet after the slurry of embodiment 5 gained being diluted to 1% concentration.Described handsheet process is used PTI handsheet machine, obtains low dense handsheet after oven dry, and the photo of low dense handsheet is as shown in Fig. 1 (right side).
High dense handsheet preparation: carry out handsheet after the slurry of high consistency pulping gained in embodiment 1 being diluted to 1% concentration.Described handsheet process is used PTI handsheet machine, obtains high dense handsheet after oven dry, and the photo of high dense handsheet is as shown in Fig. 1 (left side).
Can find relatively from Fig. 1, the quality of handsheet prepared by the slurry of embodiment 5 gained is obviously better than handsheet prepared by the slurry of embodiment 1 gained, and the visible obvious evenness of low dense handsheet is better, is more conducive to the shaping of page, paper defects is less, and the tensile strength of page also has obvious lifting.The slurry that the slurry of visible pulping process gained provided by the present invention obtains compared with high consistency pulping method has remarkable lifting in evenness.
Embodiment 7
Fiber to embodiment 5 and embodiment 1 gained slurry is analyzed, and embodiment 1 is high consistency beating, and embodiment 5 is low consistency pulping, and acquired results as shown in Figure 2.
In the slurry of embodiment 1 gained, 55.1% fiber all concentrates in this interval of 0.20～0.50mm, ratio is along with being increased in gradually of length reduced, but the fiber in the above length of 1.5mm has 9.2%, this should be the stalk skin of more difficult pulping and the smoked sheet that is not subject to making beating effect, is also the main cause that causes high consistency stock evenness inequality.And the slurry of embodiment 5 gained has 74.8% fiber between 0.2～0.75mm, fiber more than 1.5mm only has 1.4%, has well solved the problem that " weight in wet base " and " evenness " that high consistency pulping brings can not be taken into account simultaneously.
In sum, the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (8)
1. a papermaking-method reconstituted tobaccos pulping process, comprises the following steps:
(1) after will tobacco sheet material mixing, carry out lixiviate, the consisting of of described tobacco sheet material:
Offal, length is 2-7cm 45-55wt%;
40～60 order offal 20-30wt%;
Surplus is tobacco chippings;
(2) by step 1 gained material isolated by filtration, gained insoluble composition is mixed as pulping raw material;
(3) pulping raw material of step 2 gained being carried out to slurrying adjusts dense;
(4) adopt multistage pulping process, the slurry of step 3 gained is pulled an oar;
Multistage pulping process in described step 4 is dual unit sizing process, and described dual unit sizing process comprises the following steps:
(a) slurry of step 3 gained is carried out to elementary slurrying: adopt disc mill slurrying, slurrying condition is: slurrying electric current 50-70A, slurrying flow 55-65m
3/ h, mill revolution 780-1180rpm, enters to starch pressure 0.15-0.25MPa, and repetitive cycling slurrying under identical condition, and the beating degree of gained slurry is 30-40
osR, weight in wet base is 6-10g
(b) slurry of step a gained is carried out to secondary slurrying: adopt disc mill or the slurrying of cone mill pulper, slurrying condition is: slurrying electric current 70-90A, slurrying flow is 55-65m
3/ h, mill revolution is 780-1180rpm, entering to starch pressure is 0.15-0.25MPa, repetitive cycling slurrying under identical condition, the beating degree of gained slurry is 35-45
osR, weight in wet base is 3-7g.
2. a kind of papermaking-method reconstituted tobaccos pulping process as claimed in claim 1, is characterized in that, the solvent that the leaching process in described step 1 uses is water, the weight of tobacco sheet material: the weight=1:4-7 of water, extraction time is 20-40min.
3. a kind of papermaking-method reconstituted tobaccos pulping process as claimed in claim 1, is characterized in that, in described step 3, the dense solvent used of slurrying tune is water, and the concentration of gained slurry is 3.5-4.5wt%.
4. a kind of papermaking-method reconstituted tobaccos pulping process as claimed in claim 1, is characterized in that, in step a of living in, the number of times of repetitive cycling slurrying is 6-9 time.
5. a kind of papermaking-method reconstituted tobaccos pulping process as claimed in claim 4, is characterized in that, the model of the disc mill in described step a is selected from the low dense double disc refiner of DD-500.
6. a kind of papermaking-method reconstituted tobaccos pulping process as claimed in claim 1, is characterized in that, in described step b, the number of times of repetitive cycling defibrination is 1-3 time.
7. a kind of papermaking-method reconstituted tobaccos pulping process as claimed in claim 6, is characterized in that, the model of the disc mill in described step b is selected from the low dense double disc refiner of DD-500, and the model of described cone mill pulper is selected from NBR-00 conical refiner.
8. a kind of papermaking-method reconstituted tobaccos pulping process as described in claim as arbitrary in claim 1-7 is manufactured the application in field at reconstituted tobacoo.
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| CN201210292967.2A CN102845827B (en) | 2012-08-16 | 2012-08-16 | Paper making method reproduced tobacco leaf pulping process |
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| CN201210292967.2A CN102845827B (en) | 2012-08-16 | 2012-08-16 | Paper making method reproduced tobacco leaf pulping process |
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| CN103169147B (en) * | 2013-02-27 | 2015-01-14 | 广东省金叶烟草薄片技术开发有限公司 | Papermaking tobacco sheet pulp grinding process |
| CN103675218B (en) * | 2013-12-31 | 2016-03-30 | 云南瑞升烟草技术（集团）有限公司 | A kind of papermaking-method reconstituted tobaccos slurry uniformity coefficient characterizing method |
| CN104480761B (en) * | 2014-10-17 | 2016-03-09 | 安徽中烟再造烟叶科技有限责任公司 | A kind of tobacco pulp pulping process controlled flexibly |
| CN104687236A (en) * | 2015-01-06 | 2015-06-10 | 云南瑞升烟草技术（集团）有限公司 | Preparation method of tobacco fiber for cigarette paper |
| CN105249520B (en) * | 2015-11-21 | 2017-03-22 | 安徽中烟再造烟叶科技有限责任公司 | Method of researching influences of pulp morphology on product indexes through paper-making tobacco sheets |
| CN107136554A (en) * | 2017-06-29 | 2017-09-08 | 中烟施伟策（云南）再造烟叶有限公司 | A kind of method for reducing papermaking-method reconstituted tobaccos dry linting |
| CN111588072B (en) * | 2020-05-28 | 2022-05-27 | 浙江中烟工业有限责任公司 | Manufacturing method of paper-making reconstituted tobacco with high bulk and high air permeability |
| CN112617269A (en) * | 2021-01-08 | 2021-04-09 | 中烟施伟策（云南）再造烟叶有限公司 | Powder forming coating papermaking mixed pulping method |
| CN113882177B (en) * | 2021-10-07 | 2022-07-22 | 华南理工大学 | Pineapple whole-leaf antibacterial fiber and preparation method thereof |
| CN115644488B (en) * | 2022-11-07 | 2024-06-11 | 上海烟草集团有限责任公司 | Preparation method of reconstituted tobacco |
| CN116235977A (en) * | 2023-01-09 | 2023-06-09 | 上海烟草集团有限责任公司 | Preparation method of low-chromium-content substrate for reconstituted tobacco by papermaking method, substrate and application |
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