CN102182108A - Three-stacked net forming equipment and method for producing coating surface bleached kraft liner board - Google Patents
Three-stacked net forming equipment and method for producing coating surface bleached kraft liner board Download PDFInfo
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- CN102182108A CN102182108A CN2011101178671A CN201110117867A CN102182108A CN 102182108 A CN102182108 A CN 102182108A CN 2011101178671 A CN2011101178671 A CN 2011101178671A CN 201110117867 A CN201110117867 A CN 201110117867A CN 102182108 A CN102182108 A CN 102182108A
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Abstract
The invention discloses three-stacked net forming equipment and method for producing a coating surface bleached kraft liner board. The equipment comprises a three-stacked net forming device, a pressing device, a pre-drying device, a surface sizing machine, a post-drying device, a hard calendering device, a first blade coater, a first blade coating post-drying device, a curtain coater, a curtain coating post-drying device, a second blade coater, a second blade coating post-drying device, a soft calendering device, a cooling device and a coiling forming device which are sequentially arranged on a machine frame. In the invention, sizing agents at the bottom layer, the lining and the surface layer are respectively made of different raw materials with proper proportions to ensure that the produced kraft liner board has low basis weight and high strength; during the coating, the surface layer sizing is firstly carried out on a raw paperboard to ensure that the uniformity of absorbing printing ink of the kraft liner board is improved; and the respective superiorities of the curtain coating and the blade coating are combined to ensure that the coating layer surface has high smoothness and the requirements for the coating surface bleached kraft liner board in different printing modes and different fields can be satisfied.
Description
Technical field
The present invention relates to pulp technology for making paper, be specifically related to a kind of method of producing the triple-lap net former of coated white-top kraft liner board and utilizing this device fabrication coated white-top kraft liner board.
Background technology
Craft paper generally adopts waste paper or wood pulp to make as raw material, generally is divided into bottom and surface layer or is divided into bottom, sandwich layer and surface layer, and cost is lower, and intensity is higher, but rough surface, printing quality is poor.At present a lot of commodity packagings generally adopt craft paper to make packaging material in order to save cost.But, use craft paper can not satisfy the demand of part exquisiteness, expensive goods along with the live raising of grade and of people to the pursuit of packaging quality.
Coated white-top kraft liner board is good because of its intensity height, single face whiteness height, printing performance, and becomes a kind of broad-spectrum packaging material day by day.Coated white-top kraft liner board generally includes a surface layer, a lining and a bottom, and then on surface layer coating composition, owing to adopted layer structure, surface layer, lining, bottom can adopt different fibre stufves, and for example surface layer can adopt wood pulp one time, and remaining layer can adopt the secondary stock slurry, thereby, the coated white-top kraft liner board production cost is low, and the slurrying pollutional load is little, is fit to very much the national conditions that China's nature timber resources lacks.At present, though it is a lot of to produce the process units of coated white-top kraft liner board, have but that production efficiency is low, production cost is high, be coated with different problems such as weak effect and poor product quality.
Summary of the invention
First technical problem to be solved by this invention is: at the deficiency that prior art exists, provide a kind of surface smoothness height, good, quantitative low being used to of printing quality to produce the triple-lap net former of coated white-top kraft liner board.
Second technical problem to be solved by this invention is: at the deficiency that prior art exists, provide the production method of a kind of surface smoothness height, printing quality is good, quantitatively low, intensity is high coated white-top kraft liner board.
For solving above-mentioned first technical problem, technical scheme of the present invention is:
A kind of triple-lap net former of producing coated white-top kraft liner board comprises rack-mounted successively triple-lap net building mortion, pressing device, preceding drying unit, surface size press, back drying unit, hard calendering device, first knife type coater, first scraper coating back drying unit, curtain formula coating machine, curtain formula coating back drying unit, second knife type coater, second scraper coating back drying unit, soft calendaring device, cooling device and batches shaped device.
As a kind of improvement, the spacer screen of described triple-lap net building mortion is provided with the top net.
Described pressing device comprises twice through type shoe press apparatus.
Drying unit is a drying cylinder before described, and described drying cylinder comprises that three road lists are hung the arrangement drying cylinder and four roads pair extension is arranged drying cylinder.
As a kind of preferred, described surface size press is that film shifts sizing applicator.
Described curtain formula coating machine comprises two curtain formula curtain formula apparatus for coating.
For solving above-mentioned second technical problem, technical scheme of the present invention is:
A kind of method of using described folded net forming device fabrication coated white-top kraft liner board may further comprise the steps:
(1) prepares base pastes respectively, lining slurry and surface layer slurry, described base pastes adopts occ waste paper as raw material, described lining slurry adopts at least a as raw material in disregard message paper or Mixed Office WasteMOW or the useless books paper, described surface layer slurry adopts at least a as raw material in bleaching deinking slurry that bleached wood pulp or Mixed Office WasteMOW and useless books paper make or the blank sheet of paper bar, with described base pastes, lining slurry and surface layer slurry are respectively by 28～78wt%, the content ratio of 12～37wt% and 10～35wt%, compound manufacturing paper with pulp makes base board on triple-lap net building mortion.
(2) described base board is removed moisture through the pressing device squeezing, carry out two-sided applying glue after the drying, carry out hard press polish after the oven dry once more, the linear pressure of felt wrapped roll is 60～100kN/m.
(3) cardboard after the hard press polish is carried out three coatings through first knife type coater, two curtain formula curtain formula coating machines and second knife type coater successively, the coating weight of described curtain formula coating is 10～30g/m
2, the coating weight of described per pass scraper coating is 5～20g/m
2, all dry after each coating through one drying unit.
(4) carry out soft calendaring after the craft paper drying after will being coated with, the linear pressure of described soft calendaring is 60～100kN/m, obtains surface smoothness 〉=300s, is 125～250g/m quantitatively through cooling, cans then
2Coated white-top kraft liner board.
Described pressing device comprises twice through type shoe press apparatus, described one boots line ball pressure 800～1000kN/m, two road boots line ball pressure 900～1200kN/m.
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, coating apparatus of the present invention, comprise surface size press, first knife type coater, the curtain formula coating machine and second knife type coater, after base board carried out the surface layer applying glue, there is a level and smooth glue application layer on the surface, at first after the coating of first knife type coater, be coated with through two curtain formula curtain formulas again, and then through a scraper coating, top sizing at surface layer, improved the uniformity of craft paper to absorption of inks, when coating, combine curtain formula coating good uniformity, covering is good does not have advantage and the good advantage of scraper coating surface flatness that machinery injures to paper, the collocation combination of preferred coating method, the coating effect that can be issued in the prerequisite of low coating weight, make coating layer even, the surface smoothness height can satisfy the requirement of craft paper to high printing performance.
2, the present invention prepares the base pastes employing occ waste paper of coated white-top kraft liner board as raw material, the lining slurry adopts at least a as raw material in disregard message paper or Mixed Office WasteMOW or the useless books paper, surface layer slurry adopts at least a as raw material in bleaching deinking slurry that bleached wood pulp or Mixed Office WasteMOW and useless books paper make or the blank sheet of paper bar, the intensity that has well kept body paper, and employing proper raw material proportioning, the craft paper intensity height of producing is quantitatively low.
3, the present invention is provided with the top net on the spacer screen of triple-lap net building mortion, has improved the dehydrating effect of base pastes, has improved the squeezing effect.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the embodiment of the invention.
Among the figure, 1. triple-lap net building mortion; 11. top net; 2. pressing device; 3. preceding drying unit; 4. surface size press; 5. drying unit after; 6. hard calendering device; 7. first knife type coater; 8. first scraper is coated with the back drying unit; 9. curtain formula coating machine; 10. the curtain formula is coated with the back drying unit; 11. second knife type coater; 12. second scraper coating back drying unit; 13. soft calendaring device; 14. cooling device; 15. batch shaped device.
The specific embodiment
As shown in drawings, a kind of triple-lap net former of producing coated white-top kraft liner board, comprise rack-mounted successively triple-lap net building mortion 1, the spacer screen of described triple-lap net building mortion 1 is provided with top net 11, pressing device 2, described pressing device 2 comprises twice through type shoe press apparatus, preceding drying unit 3, surface size press 4, back drying unit 5, hard calendering device 6, first knife type coater, 7, the first scrapers coating back drying unit 8, curtain formula coating machine 9, curtain formula coating back drying unit 10, second knife type coater, 11, the second scrapers coating back drying unit 12, soft calendaring device 13, cooling device 14 batches shaped device 15.
Embodiment 1
Prepare base pastes, lining slurry and surface layer slurry respectively, described base pastes adopts occ waste paper as raw material, described lining slurry adopts Mixed Office WasteMOW and useless books paper as raw material, described surface layer slurry adopts bleached wood pulp as raw material, with the content ratio that described base pastes, lining slurry and surface layer slurry are pressed 40wt%, 30wt% and 30wt% respectively, compound manufacturing paper with pulp makes base board on triple-lap net building mortion.
Described base board is removed moisture through the squeezing of twice through type shoe press apparatus, described one boots line ball pressure 800kN/m, two road boots line ball pressure 900kN/m, entering the preceding drying cylinders that are provided with the two extension arrangement of three road lists extension arrangement drying cylinders and four roads drying cylinder dries, use film to shift sizing applicator then and carry out two-sided applying glue, carry out hard press polish after the oven dry once more, the linear pressure of felt wrapped roll is 60kN/m.
Cardboard after the hard press polish is carried out three coatings through first knife type coater, two curtain formula curtain formula coating machines and second knife type coater successively, and the coating weight of described curtain formula coating is 12g/m
2, the coating weight of described per pass scraper coating is 10g/m
2, all dry after each coating through one drying unit.
Craft paper after the coating is carried out soft calendaring, and the linear pressure of described soft calendaring is 70kN/m, obtains performance indications and sees Table 1 coated white-top kraft liner board through cooling, cans then.
Embodiment 2
Prepare base pastes, lining slurry and surface layer slurry respectively, described base pastes adopts occ waste paper as raw material, described lining slurry adopts disregard message paper as raw material, the bleaching deinking that described surface layer slurry adopts bleached wood pulp and Mixed Office WasteMOW and useless books paper to make is starched as raw material, with the content ratio that described base pastes, lining slurry and surface layer slurry are pressed 50wt%, 25wt% and 25wt% respectively, compound manufacturing paper with pulp makes base board on triple-lap net building mortion.
Described base board is removed moisture through the squeezing of twice through type shoe press apparatus, described one boots line ball pressure 900kN/m, two road boots line ball pressure 1000kN/m, entering the preceding drying cylinders that are provided with the two extension arrangement of three road lists extension arrangement drying cylinders and four roads drying cylinder dries, use film to shift sizing applicator then and carry out two-sided applying glue, carry out hard press polish after the oven dry once more, the linear pressure of felt wrapped roll is 70kN/m.
Cardboard after the hard press polish is carried out three coatings through first knife type coater, two curtain formula curtain formula coating machines and second knife type coater successively, and the coating weight of described curtain formula coating is 16g/m
2, the coating weight of described per pass scraper coating is 9g/m
2, all dry after each coating through one drying unit.
Craft paper after the coating is carried out soft calendaring, and the linear pressure of described soft calendaring is 80kN/m, obtains performance indications and sees Table 1 coated white-top kraft liner board through cooling, cans then.
Embodiment 3
Prepare base pastes, lining slurry and surface layer slurry respectively, described base pastes adopts occ waste paper as raw material, described lining slurry adopts Mixed Office WasteMOW and useless books paper as raw material, bleaching deinking slurry that described surface layer slurry employing Mixed Office WasteMOW and useless books paper are made and blank sheet of paper bar are as raw material, with the content ratio that described base pastes, lining slurry and surface layer slurry are pressed 72wt%, 16wt% and 12wt% respectively, compound manufacturing paper with pulp makes base board on triple-lap net building mortion.
Described base board is removed moisture through the squeezing of twice through type shoe press apparatus, described one boots line ball pressure 1000kN/m, two road boots line ball pressure 1100kN/m, entering the preceding drying cylinders that are provided with the two extension arrangement of three road lists extension arrangement drying cylinders and four roads drying cylinder dries, carry out two-sided applying glue then, carry out hard press polish after the oven dry once more, the linear pressure of felt wrapped roll is 80kN/m.
Cardboard after the hard press polish is carried out three coatings through first knife type coater, two curtain formula curtain formula coating machines and second knife type coater successively, and the coating weight of described curtain formula coating is 20g/m
2, the coating weight of described per pass scraper coating is 12g/m
2, all dry after each coating through one drying unit.
Craft paper after the coating is carried out soft calendaring, and the linear pressure of described soft calendaring is 90kN/m, obtains performance indications and sees Table 1 coated white-top kraft liner board through cooling, cans then.
Table 1
| Index name | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| The Liang of Dinging ﹙ g/m 2﹚ | 125 | 150 | 250 |
| Surface smoothness (S) | 315 | 322 | 430 |
| Print surface roughness (um) | 1.4 | 1.3 | 1.2 |
| Bai Du ﹙ wt% ﹚ | 83 | 82 | 85 |
| Seal brush glossiness ﹙ wt% ﹚ | 90 | 90 | 95 |
| Absorption of inks ﹙ wt% ﹚ | 18 | 22 | 19 |
| Laterally folding (inferior) | 32 | 23 | 25 |
| The Huan end finger is Shuoed ﹙ N.m/g ﹚ | 8.5 | 11.5 | 10.0 |
| The broken Zhi of Nai is Shuoed ﹙ kpa.m 2/g﹚ | 2.3 | 2.5 | 2.4 |
Claims (8)
1. a triple-lap net former of producing coated white-top kraft liner board is characterized in that: comprise rack-mounted successively triple-lap net building mortion, pressing device, preceding drying unit, surface size press, back drying unit, hard calendering device, first knife type coater, first scraper coating back drying unit, curtain formula coating machine, curtain formula coating back drying unit, second knife type coater, second scraper coating back drying unit, soft calendaring device, cooling device and batch shaped device.
2. the triple-lap net former of production coated white-top kraft liner board as claimed in claim 1 is characterized in that: the spacer screen of described triple-lap net building mortion is provided with the top net.
3. the triple-lap net former of production coated white-top kraft liner board as claimed in claim 1 is characterized in that: described pressing device comprises twice through type shoe press apparatus.
4. the triple-lap net former of production coated white-top kraft liner board as claimed in claim 1 is characterized in that: drying unit is a drying cylinder before described, and described drying cylinder comprises that three road lists are hung the arrangement drying cylinder and four roads pair extension is arranged drying cylinder.
5. the triple-lap net former of production coated white-top kraft liner board as claimed in claim 1 is characterized in that: described surface size press is that film shifts sizing applicator.
6. the triple-lap net former of production coated white-top kraft liner board as claimed in claim 1 is characterized in that: described curtain formula coating machine comprises two curtain formula curtain formula apparatus for coating.
7. method of using device fabrication coated white-top kraft liner board as claimed in claim 1 is characterized in that may further comprise the steps:
(1) prepares base pastes respectively, lining slurry and surface layer slurry, described base pastes adopts occ waste paper as raw material, described lining slurry adopts at least a as raw material in disregard message paper or Mixed Office WasteMOW or the useless books paper, described surface layer slurry adopts at least a as raw material in bleaching deinking slurry that bleached wood pulp or Mixed Office WasteMOW and useless books paper make or the blank sheet of paper bar, with described base pastes, lining slurry and surface layer slurry are respectively by 34～78wt%, the content ratio of 12～37wt% and 10～35wt%, compound manufacturing paper with pulp makes base board on triple-lap net building mortion;
(2) described base board is removed moisture through the pressing device squeezing, carry out two-sided applying glue after the drying, carry out hard press polish after the oven dry once more, the linear pressure of felt wrapped roll is 60～100kN/m;
(3) cardboard after the hard press polish is carried out three coatings through first knife type coater, two curtain formula curtain formula coating machines and second knife type coater successively, the coating weight of described curtain formula coating is 10～30g/m
2, the coating weight of described per pass scraper coating is 5～20g/m
2, all dry after each coating through one drying unit;
(4) carry out soft calendaring after the craft paper drying after will being coated with, the linear pressure of described soft calendaring is 60～100kN/m, obtains surface smoothness 〉=300s, is 125～250g/m quantitatively through cooling, cans then
2Coated white-top kraft liner board.
8. the method for production coated white-top kraft liner board as claimed in claim 7 is characterized in that: described pressing device comprises twice through type shoe press apparatus, described one boots line ball pressure 800～1000kN/m, two road boots line ball pressure 900～1200kN/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101178671A CN102182108A (en) | 2011-05-07 | 2011-05-07 | Three-stacked net forming equipment and method for producing coating surface bleached kraft liner board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101178671A CN102182108A (en) | 2011-05-07 | 2011-05-07 | Three-stacked net forming equipment and method for producing coating surface bleached kraft liner board |
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| CN102182108A true CN102182108A (en) | 2011-09-14 |
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| CN103321083A (en) * | 2013-07-19 | 2013-09-25 | 吉安集团股份有限公司 | Production device and production method of curtain type coated white-top craft paper |
| CN108330736A (en) * | 2018-01-10 | 2018-07-27 | 浙江山鹰纸业有限公司 | A kind of gravure coating paper and its production technology |
| CN111705550A (en) * | 2020-06-17 | 2020-09-25 | 广州威科多工业科技有限公司 | White craft paper and preparation method thereof |
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| CN101586317A (en) * | 2009-07-07 | 2009-11-25 | 昌乐世纪阳光纸业有限公司 | Coated white-top kraft liner board and manufacturing method thereof |
| WO2010069803A1 (en) * | 2008-12-18 | 2010-06-24 | Voith Patent Gmbh | Method for the multiple coating of a fibrous web, in particular a movable cardboard web, and apparatus for treating and/or converting fibrous webs, in particular for the multiple-layer application of liquid or pasty application media |
| CN202055102U (en) * | 2011-05-07 | 2011-11-30 | 昌乐新迈纸业有限公司 | Three-net-stacking shaping equipment for producing light-coated kraft liner boards |
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| CN103321083A (en) * | 2013-07-19 | 2013-09-25 | 吉安集团股份有限公司 | Production device and production method of curtain type coated white-top craft paper |
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Application publication date: 20110914 |