CN1070972A - Mulberry shoot, cigarette stalk cold soda pulping paper technology - Google Patents
Mulberry shoot, cigarette stalk cold soda pulping paper technology Download PDFInfo
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- CN1070972A CN1070972A CN 92109900 CN92109900A CN1070972A CN 1070972 A CN1070972 A CN 1070972A CN 92109900 CN92109900 CN 92109900 CN 92109900 A CN92109900 A CN 92109900A CN 1070972 A CN1070972 A CN 1070972A
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Abstract
A kind of mulberry shoot, cigarette stalk cold soda pulping method, wherein adopt the mulberry shoot or the cigarette stalk that clean after section, to be transported in the impregnating bath, add 2.5-7 times of water of raw material weight, 3-20% caustic soda, under normal pressure, normal temperature condition, flood, and maceration extract is often circulated, and tablet dipping 2-20 days washs behind the tablet pulping, making beating, papermaking routinely.These raw materials technology wide material sources, normal temperature, normal pressure are produced the greyish white and light paper in burning back down, and the high pressure resistant equipment of cancellation boiling is saved the energy and equipment expenses, significantly reduces manufacturing cost, and maceration extract recycles, and can alleviate environmental pollution.
Description
The present invention relates to a kind of chemical pulping process, particularly mulberry shoot, tobacco rod cold soda pulping paper technology.
The traditional chemical pulping process of industrial normal employing mainly contains alkaline process and sulphite process.These methods all need the digesting apparatus of the high pressure of anti-0.5-0.8MPa, 140-170 ℃ high temperature, and need the pressure about 1MPa, about 180 ℃ steam, the paper pulp that institute's boiling goes out, and often owing to the reaction of high heat colouring group, color is darker, not easy dyeing.At present both at home and abroad all in research slurrying new technology, the chemical pulping process method of reform traditional, the present inventor once selected for use lime to flood the method for tender mao bamboon system rice paper with slurry, but because of its dip time oversize, often take 3-6 month, so be difficult to realize bigger output, particularly tender mao bamboon (the big bamboo shoot that do not have foliation) resource-constrained, country's restriction is used, and is difficult to promote.
The present inventor thinks, the hardness of boiling gained paper pulp has direct relation with the product of boiling temperature (or pressure) and temperature retention time, and promptly this product is big, and the starch degree is low, and the high paper pulp color of boiling temperature is dark.According to this argument, suitably select low temperature (normal temperature), time expand for use, make the product of temperature and time reach several times of traditional pulping process product, also can make the relatively low paper pulp of hardness.Whether paper pulp burning back ash is white and light, relevant with the ash content of raw material, lower as raw material ash such as needlebush, leaf wood, bamboos, the unbleached paper of being produced without bleaching, and burning back ash is also whiter; And paddy and wheat grassland material ash content is higher, the bleaching paper of production, and burning back grey is also very black.But timber, bamboo resource are limited, and the cost height should not be applied.
The purpose of this invention is to provide a kind of improved chemical pulping method, its raw material sources is extensive, under normal temperature, normal pressure, produce the greyish white and light paper in burning back, the high pressure resistant equipment of cancellation boiling, save the energy and equipment expenses, significantly reduce manufacturing cost, maceration extract recycles, and can alleviate environmental pollution.
The object of the present invention is achieved like this: mulberry shoot that this process using cleans or tobacco rod are transported in the impregnating bath after section, add 2.5-7 times of water of raw material weight, the caustic soda of 3-20%, under normal pressure, normal temperature condition, flood, and maceration extract is often circulated, be about to maceration extract and emit by the impregnating bath bottom, pump into from impregnating bath top again through filter plate, tablet dipping 2-20 days washs behind the tablet pulping, making beating, papermaking routinely.
Because it is raw material that the present invention adopts ash content lower silkworm industry discarded object beta pruning mulberry shoot or agricultural wastes tobacco rod, turn waste into wealth, so sufficient raw, extensive.Dipping is made the paper pulp of look simple and easy dyeing under normal temperature, normal pressure, cancel traditional digesting technoloy, need not be high temperature resistant, the equipment of high pressure, and equipment investment is few, without steam, the saving energy, easy and simple to handle, safety can significantly reduce manufacturing cost.Contain alkali lye with recycling behind additional soup of the maceration extract of crossing and the clear water, not arranging basically, also can save caustic soda, alleviate environmental pollution, the paper burning back of making is greyish white and light, and therefore, the present invention is easy to apply.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a process flow diagram of the present invention.
Describe concrete technological process of the present invention and method of operating in detail according to Fig. 1.Present embodiment is that the mulberry shoot (or tobacco rod) 1 with beta pruning is a raw material, cleans the back and is cut into qualified tablet (general length is 20-50mm, to be advisable about 35mm) by actual needs with bamboo cutter (or chaffcutter) 2, sends into impregnating bath 4 with conveying machinery 3 then.The water that adds 4.5 times of tablet weight is again squeezed into impregnating bath 4 with the caustic lye for preparing through pump 8 then from discharge opeing collecting pit 7, flame enrichment alkali number (comprising discharge opeing reuse institute alkalinity) is 7.5% of tablet weight.For improving impregnating effect, when adding caustic soda, also can add 0.04-1.5% surfactant alkyl (benzene) sodium sulfonate of tablet weight.Flooded 4-5 days down at normal pressure, normal temperature (being advisable) to be no more than 65 ℃.Need often make the maceration extract circulation around here, also be about to maceration extract and emit by the bottom control valve 6 of impregnating bath 4, enter discharge opeing collecting pit 7, use pump 8 again impregnating bath 4 tops through filter plate 5.Also can directly from impregnating bath 4, the maceration extract sucking-off be sprayed into from top, pond again with pump so that tablet 1 dipping evenly, prevent top tablet 1 air-dry soak not saturating.So circulation is until tablet 1 pulping.Slip routinely through washing, is entered beater 9, mill 10, reserve pit 11, until paper machine 12, produce natural color pulp whiteness higher (look shallow), chromatophilous paper pulp, the paper that is ferreted out burning back is greyish white and light.
If make colored thin ticker tape, can after accomplishing fluently slurry, the tablet pulping add 0.5% aluminum sulfate (can suitably increase and decrease) of over dry slurry weight according to water quality, transfer pH value 4.5-6.5, behind the slurry mixing, add dyestuff again and can make thin ticker tape routinely.The consumption of dyestuff can be according to actual needs, color weight and deciding.
The length of tablet dip time is definite according to actual Papermaking Conditions, can be above 20 days.The present invention can be according to the quality requirement of paper, according to the plant variation of condition of the length of tablet dip time, the conventional washing of papermaking, bleaching, making beating, machine hand, produce greyish white after the burning of all size, amount less and light paper and cardboard, as cigarette paper, imitative rice paper (drawing and drills to improve one's handwriting paper), high-grade sacrifice paper, grease proofing and waterproof body paper (being used for packagings for foodstuff such as cake, bread, meat, sausage).
Claims (3)
1, a kind of mulberry shoot, tobacco rod cold soda pulping paper technology, it is characterized in that adopting the mulberry shoot or the tobacco rod that clean after section, to be transported in the impregnating bath, add 2.5-7 times of water of raw material weight, the caustic soda of 3-20% floods under normal pressure, normal temperature condition, and maceration extract is often circulated, being about to maceration extract is emitted by the impregnating bath bottom through filter plate, pump into from impregnating bath top, tablet dipping 2-20 days washs behind the tablet pulping, making beating, papermaking routinely again.
2, paper technology according to claim 1 when it is characterized in that impregnating bath adds caustic soda, can add surfactant alkyl (benzene) sodium sulfonate of raw material weight 0.04-1.5%.
3, paper technology according to claim 1 and 2, it is characterized in that tablet pulping washing, making beating after, add 0.5% aluminum sulfate of over dry slurry weight, transfer pH value 4.5-6.5, adding dyestuff again can dye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109900 CN1070972A (en) | 1992-09-22 | 1992-09-22 | Mulberry shoot, cigarette stalk cold soda pulping paper technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92109900 CN1070972A (en) | 1992-09-22 | 1992-09-22 | Mulberry shoot, cigarette stalk cold soda pulping paper technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1070972A true CN1070972A (en) | 1993-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92109900 Pending CN1070972A (en) | 1992-09-22 | 1992-09-22 | Mulberry shoot, cigarette stalk cold soda pulping paper technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1070972A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400743C (en) * | 2006-01-13 | 2008-07-09 | 东营中盛环保纸业科技有限公司 | Quick cold soaking and mechanical pulping process for grass family |
| CN101871185A (en) * | 2010-07-08 | 2010-10-27 | 福建农林大学 | Method for preparing fruit growth bagging paper by utilizing tobacco stalk |
| CN109132196A (en) * | 2018-09-13 | 2019-01-04 | 广东中烟工业有限责任公司 | A kind of cigarette package decoration paper of cigarette waste preparation and its application |
-
1992
- 1992-09-22 CN CN 92109900 patent/CN1070972A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400743C (en) * | 2006-01-13 | 2008-07-09 | 东营中盛环保纸业科技有限公司 | Quick cold soaking and mechanical pulping process for grass family |
| CN101871185A (en) * | 2010-07-08 | 2010-10-27 | 福建农林大学 | Method for preparing fruit growth bagging paper by utilizing tobacco stalk |
| CN101871185B (en) * | 2010-07-08 | 2011-12-14 | 福建农林大学 | Method for preparing fruit growth bagging paper by utilizing tobacco stalk |
| CN109132196A (en) * | 2018-09-13 | 2019-01-04 | 广东中烟工业有限责任公司 | A kind of cigarette package decoration paper of cigarette waste preparation and its application |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |