CN102677523B - Production process of raw material for coated white board paper - Google Patents
Production process of raw material for coated white board paper Download PDFInfo
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- CN102677523B CN102677523B CN201210168500.7A CN201210168500A CN102677523B CN 102677523 B CN102677523 B CN 102677523B CN 201210168500 A CN201210168500 A CN 201210168500A CN 102677523 B CN102677523 B CN 102677523B
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- xylon
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- coated manila
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- 239000002994 raw material Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000010893 paper waste Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 37
- 238000010009 beating Methods 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 8
- 239000002023 wood Substances 0.000 claims abstract description 8
- 229940089401 xylon Drugs 0.000 claims description 98
- 239000002002 slurry Substances 0.000 claims description 62
- 229920001131 Pulp (paper) Polymers 0.000 claims description 20
- 230000015556 catabolic process Effects 0.000 claims description 16
- 238000006731 degradation reaction Methods 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 claims description 14
- 239000012634 fragment Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 229920002522 Wood fibre Polymers 0.000 abstract 2
- 239000002025 wood fiber Substances 0.000 abstract 2
- 238000000227 grinding Methods 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000004537 pulping Methods 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 14
- 230000007423 decrease Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241001343274 Dichrostachys spicata Species 0.000 description 1
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012792 core layer Substances 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
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Paper (AREA)
Abstract
The invention relates to the technical field of processing of papermaking raw materials, in particular to a production process of a raw material for a coated white board paper in the paper-making industry. The production process comprises the following process steps of: a first step of grinding raw wood into powder; a second step of beating wood fibers; a third step of carrying out purification treatment; a four step of carrying out desanding treatment; a fifth step of carrying out disc milling and pulping treatment; and a sixth step of preparing pulp and making paper. According to the invention, due to the utilization of the combination of a wood fiber beating process and a purification process, at least 10 percent of waste paper raw materials are replaced and the problems of rising of price of waste paper and reduction of the pressure and the thickness are solved, so that the using amount of the waste paper raw materials is reduced, the cost is reduced and more economic benefits are created.
Description
Technical field
The present invention relates to paper making raw material processing technique field, the production technology of the coated manila raw material particularly in a kind of paper industry.
Background technology
Coated manila is a kind of package paper of top grade, is the important component part of wrapping paper.Coated manila has excellent coating surface performance because of it, exquisite color printing chromaticity printing effect can be printed out and obtain packing the favor on boundary, at present, coated manila has been widely used in the wrapping paper table paper of daily living article, agricultural product, white goods product etc.
In prior art, the raw material of coated manila is mainly waste paper and wood pulp, coated manila is divided into surface layer, lining, sandwich layer, bottom four layers, the effect of each layer slurry is different, use raw material also different, the raw material of each layer is as follows: surface layer: 85 degree of DMOW(wastepaper+wood pulps), lining: 65 degree of DIP(papers for books and periodicals+part newspapers), sandwich layer: OCC(yellow plate paper and corrugated paper), bottom: 50 degree of DIP(newspapers).
Along with the application of coated manila is increasingly extensive, its output increases year by year, and the number of times that recycles of various wastepaper as raw material increases, and wastepaper as raw material is relatively nervous, causes rise in price; Meanwhile, along with waste paper cycle-index increases, waste paper fibre Quality Down, affects the thickness of coated manila.And with wood pulp papermaking, although the white board quality obtained is better, need during wood pulp papermaking first the lignin in timber to be removed, complex process, production cost is high, and during pure wood pulp papermaking, because freedom is lower, dehydration is slow, and the speed of a motor vehicle can reduce, and working (machining) efficiency is low.
For the deficiencies in the prior art, need a kind of cost ratio wastepaper as raw material at present badly low, and paper thickness can be improved into, make up because of waste paper repeatedly recycle after the new raw material of the coated manila cost increase that causes and thickness decline problem.
Summary of the invention
The object of the invention is to provide for the deficiencies in the prior art a kind of cost of material low, and paper thickness can be improved into, the production technology of the coated manila raw material that the coated manila cost caused is low and thickness is high.
Object of the present invention is realized by following technical measures.
A kind of production technology of coated manila raw material is provided, comprises following processing step:
Step one, log abrasive dust;
Step 2, xylon size degradation;
Step 3, purified treatment;
Step 4, desanding process;
Step 5, mill making beating process;
Step 6, papermaking with slurry.
Wherein, described step one, is specially, and log fragment is worn into xylon by wood grinder: the length Wei≤5cm of log fragment, width Wei≤2cm, Hou Du Wei≤0.5cm; Obtained xylon is long is 0.2-0.8cm, and wide is 0.2-0.7mm.Preferably, the length of log fragment is 5cm, and width is 2cm, and thickness is 0.5cm, and obtained xylon is long is 0.5cm, and wide is 0.4mm, is convenient to pulper and pulverizes processing.The density of xylon is 450 ~ 550kg/m
3, be preferably 500kg/m
3.The kind of log is needlebush or leaf wood.
Wherein, described step 2, is specially, and the xylon of milled is transported to pulper by chain mat machine, adds aqueous dispersion, dissolving, is prepared into the finely dispersed xylon slurry of 3 ~ 6% mass percentage concentration, then by transport pump in dump chest.Preferably, the concentration of xylon slurry is 4%.The transporting velocity 12-20m/min of chain mat machine, is preferably 16m/min.The effect adopting pulper to carry out size degradation is to allow xylon be dispersed in water uniformly, forms the xylon slurry of uniform 3 ~ 6% mass percentage concentration.
Wherein, xylon in xylon slurry is long is 0.2-0.8cm, and wide be 0.05-0.2mm, is easy to prepare, stream send, adds, facilitate following process.
Wherein, described step 3, be specially, xylon slurry agitator in dump chest is fully stirred, xylon slurry is mixed, then by transport pump in clarifier-tank, fine screen is used to be separated the impurity of Li Jing≤0.25mm in xylon slurry, isolated impurity is discharged by pipeline, is conducive to purification xylon slurry, prevents large granular impurity from causing into the paper defects degradations such as paper stain, papermaking.Xylon slurry after purified treatment can be transported in storage tank and save backup.
Wherein, the mesh size of described fine screen is 0.1 ~ 0.25mm, and pressure during fine screen is 180 ~ 250KPa.Preferably, the solarization aperture of fine screen is 0.25mm, and pressure during fine screen is 200 KPa.The effect that fine screen is separated is by Impurity removal little for particle diameter in xylon slurry, guarantees the purity of xylon, and be conducive to the purity improving core layer raw material, the sandwich layer quality of finished paper of coated manila is high.
Wherein, described step 4, is specially, and adopts agitator to carry out stirring until xylon slurry fully mixes in the xylon slurry in storage tank, again by transport pump in high concentration desanding device, utilize high concentration desanding device to remove the larger impurity of xylon slurry Midst density.Such as stone, sand, metal, impurity that glass isodensity is larger than xylon density, prevent from being lowered into paper quality.Impurity can be got rid of by deslagging by high concentration desanding device, improve the quality of xylon slurry, improve quality of finished paper.
Further, the xylon slurry after desanding process can also be re-started purified treatment, and then through desanding process, be conducive to screening out the impurity in xylon slurry further, improve xylon stock quality further.Wherein the number of times of purified treatment and desanding process can be determined according to practical condition, and the number of times of purified treatment and desanding process can be once, twice or repeatedly.
Wherein, described step 5, is specially, and utilizes mill pulp grinder to carry out mill making beating to the xylon slurry after desanding process, You Li Du≤600ml.Preferably, freedom is 600ml, guarantees the abundant wire-dividing broom purification of xylon, improves the adhesion of xylon and fiber, improves adhesion area, thus is conducive to the adhesion improving sandwich layer, stablizes coated manila bond strength.Mill making beating process after xylon slurry can introduce store in xylon pond for subsequent use.
Wherein, described step 6, be specially, after xylon slurry in xylon pond is stirred by agitator, quantitative xylon slurry and waste paper pulp are mixed into the raw material of the sandwich layer for the manufacture of coated manila, for papermaking, reduce the use amount of waste paper pulp, reduce cost of material, thus reduce the production cost of coated manila.
Wherein, the quality proportioning of described xylon slurry and waste paper pulp is 10 ~ 20%:80 ~ 90%.Preferably, the quality proportioning of xylon slurry and waste paper pulp is 10%:90%.
The length of xylon of the present invention and width than the length of the fiber of secondary stock and pure wood pulp and width large, after adding sandwich layer, the bulk of sandwich layer can be improved, thus be conducive to the thickness increasing white board.
The sandwich layer of coated manila mainly plays filling effect, increase the thickness of white board, improve the deflection of white board, present invention reduces the use amount of the higher waste paper pulp of cost price, with price lower 10 ~ 20% xylon slurry substitute waste paper pulp, effectively can reduce cost of material, improve into paper thickness.
Beneficial effect of the present invention is: the production technology of a kind of coated manila raw material of the present invention, comprises following processing step: step one, log abrasive dust; Step 2, xylon size degradation; Step 3, purified treatment; Step 4, desanding process; Step 5, mill making beating process; Step 6, papermaking with slurry.The present invention utilizes xylon size degradation and process for purifying combination, substitutes at least 10% wastepaper as raw material, solves waste paper rise in price pressure and thickness decline problem, thus reduce wastepaper as raw material consumption, reduce cost, create larger economic benefit.
The invention has the advantages that:
(1) xylon is as a kind of novel raw material, and price is both low than wastepaper as raw material, simultaneously can also improve into paper thickness, make up because of waste paper repeatedly recycle after the coated manila cost increase that causes and thickness decline problem.
(2) wood source is extensive, and distributed areas are wide, and be conducive to material collection and application, cost of material cost is low, high financial profit.
(3) present invention process is simple, ripe, and equipment cost is low, is conducive to the application of extensive popularity.
(4) xylon preparation of the present invention does not need chemicals, environmental protection, and low in the pollution of the environment, effectively reduce sewage discharge, social benefit is good.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any limitation of the invention.
Fig. 1 is process chart of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated, and this is preferred embodiment of the present invention.
embodiment one.
As shown in Figure 1, the production technology of a kind of coated manila raw material of the present embodiment, comprises following processing step: log abrasive dust: log fragment is worn into xylon by wood grinder: the length of log fragment is 5cm, and width is 2cm, and thickness is 0.5cm; Xylon is long is 0.8cm, and wide is 0.7mm; Xylon size degradation: xylon is transported to pulper by chain mat machine, adds aqueous dispersion, size degradation, is prepared into the finely dispersed xylon slurry of 6% mass percentage concentration, and the xylon in xylon slurry is long is 0.8cm, and wide is 0.2mm; Purified treatment: use fine screen to particle diameter in xylon slurry Wei≤impurity of 0.25mm is separated, purification xylon slurry.The mesh size of fine screen is 0.25mm, and pressure during fine screen is 250KPa; Desanding process: use the impurity that high concentration desanding device removing xylon slurry Midst density is larger; Mill making beating process: the xylon slurry after desanding process is pulled an oar with mill, You Li Du≤1000ml; Papermaking with slurry: the raw material xylon slurry after mill making beating process and waste paper pulp being mixed into the sandwich layer for the manufacture of coated manila, the quality proportioning of xylon slurry and waste paper pulp is 20%:80%.
The present invention utilizes xylon size degradation and process for purifying combination, substitutes 20% wastepaper as raw material, solves waste paper rise in price pressure and thickness decline problem, thus reduce wastepaper as raw material consumption, reduce cost, and effectively improve into paper thickness, high financial profit.
embodiment two.
As shown in Figure 1, the production technology of a kind of coated manila raw material of the present embodiment, comprises following processing step: log abrasive dust: log fragment is worn into xylon by wood grinder: the length of log fragment is 3cm, and width is 1cm, and thickness is 0.2cm; Xylon is long is 0.5cm, and wide is 0.4mm; Xylon size degradation: xylon is transported to pulper by chain mat machine, adds aqueous dispersion, size degradation, is prepared into the finely dispersed xylon slurry of 4% mass percentage concentration, and the xylon in xylon slurry is long is 0.5cm, and wide is 0.12mm; Purified treatment: use fine screen to particle diameter in xylon slurry Wei≤impurity of 0.18mm is separated, purification xylon slurry.The mesh size of fine screen is 0.18mm, and pressure during fine screen is 210KPa; Desanding process: use the impurity that high concentration desanding device removing xylon slurry Midst density is larger; Mill making beating process: the xylon slurry after desanding process is pulled an oar with mill, You Li Du≤800ml; Papermaking with slurry: the raw material xylon slurry after mill making beating process and waste paper pulp being mixed into the sandwich layer for the manufacture of coated manila, the quality proportioning of xylon slurry and waste paper pulp is 15%:85%.
The present invention utilizes xylon size degradation and process for purifying combination, substitutes 15% wastepaper as raw material, solves waste paper rise in price pressure and thickness decline problem, thus reduce wastepaper as raw material consumption, reduce cost, and effectively improve into paper thickness, high financial profit.
embodiment three.
As shown in Figure 1, the production technology of a kind of coated manila raw material of the present embodiment, comprises following processing step: log abrasive dust: log fragment is worn into xylon by wood grinder: the length of log fragment is 2cm, and width is 0.5cm, and thickness is 0.1cm; Xylon is long is 0.2cm, and wide is 0.2mm; Xylon size degradation: xylon is transported to pulper by chain mat machine, adds aqueous dispersion, size degradation, is prepared into the finely dispersed xylon slurry of 3% mass percentage concentration, and the xylon in xylon slurry is long is 0.2cm, and wide is 0.05mm; Purified treatment: use fine screen to be separated the impurity of Li Jing≤0.1mm in xylon slurry, purification xylon slurry.The mesh size of fine screen is 0.1mm, and pressure during fine screen is 180KPa; Desanding process: use the impurity that high concentration desanding device removing xylon slurry Midst density is larger; Mill making beating process: the xylon slurry after desanding process is pulled an oar with mill, You Li Du≤600ml; Papermaking with slurry: the raw material xylon slurry after mill making beating process and waste paper pulp being mixed into the sandwich layer for the manufacture of coated manila, the quality proportioning of xylon slurry and waste paper pulp is 10%:90%.
The present invention utilizes xylon size degradation and process for purifying combination, substitutes 10% wastepaper as raw material, solves waste paper rise in price pressure and thickness decline problem, thus reduce wastepaper as raw material consumption, reduce cost, and effectively improve into paper thickness, high financial profit.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (5)
1. a production technology for coated manila raw material, is characterized in that: comprise following processing step:
Step one, log abrasive dust;
Step 2, xylon size degradation;
Step 3, purified treatment;
Step 4, desanding process;
Step 5, mill making beating process;
Step 6, papermaking with slurry;
Wherein, described step one, is specially, and log fragment is worn into xylon by wood grinder: the length Wei≤5cm of log fragment, width Wei≤2cm, Hou Du Wei≤0.5cm; Obtained xylon is long is 0.2-0.8cm, and wide is 0.2-0.7mm;
Wherein, described step 2, is specially, and xylon is transported to pulper by chain mat machine, adds aqueous dispersion, size degradation, is prepared into the finely dispersed xylon slurry of 3 ~ 6% mass percentage concentration; Xylon in described xylon slurry is long is 0.2-0.8cm, and wide is 0.05-0.2mm;
Wherein, described step 6, is specially, and the xylon slurry after mill making beating process and waste paper pulp are mixed into the raw material of the sandwich layer for the manufacture of coated manila, the quality proportioning of described xylon slurry and waste paper pulp is 10 ~ 20%:80 ~ 90%.
2. the production technology of a kind of coated manila raw material according to claim 1, is characterized in that: described step 3, is specially, and uses fine screen to be separated the impurity of Li Jing≤0.25mm in xylon slurry, purification xylon slurry.
3. the production technology of a kind of coated manila raw material according to claim 2, it is characterized in that: the mesh size of described fine screen is 0.1 ~ 0.25mm, pressure during fine screen is 180 ~ 250KPa.
4. the production technology of a kind of coated manila raw material according to claim 1, is characterized in that: described step 4, is specially, and uses the hard impurity that high concentration desanding device removing xylon slurry Midst density is larger.
5. the production technology of a kind of coated manila raw material according to claim 1, is characterized in that: described step 5, is specially, and pulls an oar to the xylon slurry after desanding process with mill, You Li Du≤600ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210168500.7A CN102677523B (en) | 2012-05-28 | 2012-05-28 | Production process of raw material for coated white board paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210168500.7A CN102677523B (en) | 2012-05-28 | 2012-05-28 | Production process of raw material for coated white board paper |
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| Publication Number | Publication Date |
|---|---|
| CN102677523A CN102677523A (en) | 2012-09-19 |
| CN102677523B true CN102677523B (en) | 2015-04-15 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988789B (en) * | 2015-05-29 | 2017-02-01 | 东莞玖龙纸业有限公司 | Method for making low basis weight manila board from wood fiber |
| CN104846684B (en) * | 2015-05-29 | 2017-01-11 | 东莞玖龙纸业有限公司 | Environment-friendly plastics-absorption double-surface coated white board paper and preparation technology thereof |
| CN106087521B (en) * | 2016-07-29 | 2017-10-27 | 联盛纸业（龙海）有限公司 | A kind of use OCC slurries substitute the production method of the senior coating coated duplex board with grey back of DIP slurry productions |
| CN106087522B (en) * | 2016-07-29 | 2017-03-15 | 联盛纸业（龙海）有限公司 | A kind of production method of the high thickness chipboard of ash-rich |
| CN106223091B (en) * | 2016-07-29 | 2017-12-15 | 联盛纸业（龙海）有限公司 | A kind of brush wood wood chip defibrator process slurry substitutes OCC slurries with the production method for copying high-grade cardboard |
| CN106223090B (en) * | 2016-07-29 | 2017-12-15 | 联盛纸业（龙海）有限公司 | A kind of wood chip defibrator process slurry substitutes OCC and matches somebody with somebody the production method for copying high-grade one side coating coated duplex board with grey back |
| CN110205855A (en) * | 2019-04-19 | 2019-09-06 | 东莞建晖纸业有限公司 | A kind of coating coated duplex board with grey back center stock preparation process |
| CN110219200A (en) * | 2019-04-19 | 2019-09-10 | 东莞建晖纸业有限公司 | Novel coating coated duplex board with grey back center stock preparation process |
| CN112223473B (en) * | 2020-10-20 | 2022-03-08 | 深圳市瑞洲实业股份有限公司 | Modified wood fiber, preparation method thereof and application thereof in papermaking |
| CN114855489A (en) * | 2022-05-11 | 2022-08-05 | 远通纸业(山东)有限公司 | Wood fiber treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825216A (en) * | 1955-04-21 | 1959-12-09 | Bauer Bros Co | Method of producing wood pulp |
| US4435249A (en) * | 1979-09-05 | 1984-03-06 | The Black Clawson Co. | Process for the oxygen delignification of pulp mill rejects |
| CN101338532A (en) * | 2008-08-04 | 2009-01-07 | 岳阳纸业股份有限公司 | Pulping process for grinding wood pulp of cotton wood by mechanical abrader |
-
2012
- 2012-05-28 CN CN201210168500.7A patent/CN102677523B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825216A (en) * | 1955-04-21 | 1959-12-09 | Bauer Bros Co | Method of producing wood pulp |
| US4435249A (en) * | 1979-09-05 | 1984-03-06 | The Black Clawson Co. | Process for the oxygen delignification of pulp mill rejects |
| CN101338532A (en) * | 2008-08-04 | 2009-01-07 | 岳阳纸业股份有限公司 | Pulping process for grinding wood pulp of cotton wood by mechanical abrader |
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