CN102182105A - Four-stacked net forming equipment and method for producing coating kraft liner board - Google Patents
Four-stacked net forming equipment and method for producing coating kraft liner board Download PDFInfo
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- CN102182105A CN102182105A CN2011101170311A CN201110117031A CN102182105A CN 102182105 A CN102182105 A CN 102182105A CN 2011101170311 A CN2011101170311 A CN 2011101170311A CN 201110117031 A CN201110117031 A CN 201110117031A CN 102182105 A CN102182105 A CN 102182105A
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Abstract
The invention discloses four-stacked net forming equipment and method for producing a coating kraft liner board. The equipment comprises a four-stacked net forming device, a pressing device, a pre-drying device, a surface sizing machine, a post-drying device, a belt calender, a curtain coater, a curtain coating post-drying device, a first blade coater, a first blade 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, When the coating kraft liner board is produced, the sizing is carried out on the surface layer to ensure that the uniformity of absorbing printing ink of the kraft liner board is improved; and during the coating, the respective superiorities of the curtain coating and the blade coating are combined and different raw materials with proper proportions are respectively adopted at the bottom layer, the core layer, the lining and the surface layer to ensure that the produced coating kraft liner board has the advantages of low basis weight, high strength, good bulk and high surface smoothness and can satisfy the requirements for the coating kraft liner board in different printing modes and different fields.
Description
Technical field
The present invention relates to pulp technology for making paper, be specifically related to a kind of method that is used to produce four folded net formers of coating craft paper and utilizes this device fabrication coating craft paper.
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.
The coating craft paper 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.The coating craft paper 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, coating craft paper 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 coating craft paper, 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 four folded net formers of coating craft paper.
Second technical problem to be solved by this invention is: the deficiency at prior art exists provides a kind of surface smoothness height, printing quality is good, intensity is high, the production method of quantitatively low coating craft paper.
For solving above-mentioned first technical problem, technical scheme of the present invention is:
Be used to produce four folded net formers of coating craft paper, comprise rack-mounted successively four folded net building mortions, pressing device, preceding drying unit, surface size press, back drying unit, belt calender, curtain formula coating machine, curtain formula coating back drying unit, first knife type coater, first scraper coating back drying unit, second knife type coater, second scraper coating back drying unit, the soft calendaring device, cooling device and batch shaped device, described pressing device comprises twice through type shoe press apparatus, one of described twice through type shoe press apparatus presses roller and two depress rollers are the boots roller, two press use shoe press belt on the roller, and one presses roller, use press felt on one depress roller and two depress rollers.
Drying unit is a drying cylinder before described, and described drying cylinder comprises that three road lists are hung the arrangement drying cylinder and three roads pair extension is arranged drying cylinder.
Described curtain formula coating machine comprises two curtain formula curtain formula apparatus for coating.
As a kind of preferred, described surface size press is that film shifts sizing applicator.
As a kind of preferred, described belt calender is the Valzone belt calender.
For solving above-mentioned second technical problem, technical scheme of the present invention is:
A kind of method of using described four folded net former production coating craft papers may further comprise the steps:
(1) prepares base pastes respectively, center stock, lining slurry and surface layer slurry, described base pastes and center stock adopt 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, center stock, lining slurry and surface layer slurry are respectively by 20～40wt%, 20～40wt%, the content ratio of 10～30wt% and 10～30wt%, compound manufacturing paper with pulp makes base board on four folded net building mortions.
(2) described base board is removed moisture through the pressing device squeezing, and carry out two-sided applying glue after the oven dry, carry out the belt press polish after the oven dry once more, the linear pressure of felt wrapped roll is 20～80kN/m.
(3) with the cardboard after the press polish successively through two curtain formula curtain formula coating machines and at least the twice knife type coater be coated with, 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) craft paper after will being coated with carries out soft calendaring, and the linear pressure of described soft calendaring is 60～100kN/m, obtains surface smoothness 〉=300s, is 125～250g/m quantitatively through cooling, cans then
2The coating craft paper.
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.
As a kind of improvement, one boots of described twice through type shoe press apparatus press roller and two road boots depress rollers are the boots roller, and two road boots press roller and use the shoe press belt, and one boots press on roller, one boots depress roller and the two road boots depress rollers and use press felt.
As a kind of improvement, will carry out classification behind the described occ waste paper pulp-making, the long stuff that classification is come out is done base pastes, and short stock is done center stock.
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, coating apparatus of the present invention, comprise surface size press, curtain formula coating machine, first knife type coater and second knife type coater, after shifting applying glue, adopt film belt calender to carry out press polish, adopt this device to produce the coating craft paper, after base board carried out the surface layer applying glue, there is a level and smooth glue application layer on the surface, at first be coated with through two curtain formula curtain formulas, and then through twice scraper coating, at the top sizing of surface layer, improved the uniformity of craft paper to absorption of inks, when coating, combine curtain formula coating good uniformity, covering is good, the advantage of paper not being had the machinery injury, with the good advantage of scraper coating surface flatness, the collocation combination of preferred coating method, the coating effect that can be issued in the prerequisite of low coating weight makes coating layer even, the surface smoothness height can satisfy the requirement of craft paper to high printing performance; Because base board is through belt calender the time, long contact time with felt wrapped roll, press polish is effective, does not need bigger pressure, so the relative bulky of producing of craft paper, and craft paper is quantitatively little under the same thickness, can satisfy the demand of different field to craft paper.
2, one boots of twice through type shoe press apparatus of the present invention press roller and two road boots depress rollers are the boots roller, two road boots press and use the shoe press belt on the roller, one boots press on roller, one boots depress roller and the two road boots depress rollers and use press felt, two road boots press and use the shoe press belt to improve the surface smoothness of the base board after the squeezing on the roller, therefore saved the optical pressure operation after the squeezing, simplified production stage, reduce energy consumption, reduced equipment investment and equipment maintenance cost.
3, the present invention prepares the base pastes and the center stock that are coated with craft paper and adopts occ waste paper as raw material, to carry out classification behind the described occ waste paper pulp-making, the long stuff that classification is come out is done base pastes, short stock is done center stock, 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, base pastes adopts the occ long fiber pulp as slurry, the intensity that has well kept body paper, improved the intensity of craft paper bottom, and employing proper raw material proportioning, the craft paper intensity height of producing is quantitatively low.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is the structural representation of the embodiment of the invention.
Among the figure, 1. four fold the net building mortions; 2. pressing device; 21. one boots presses roller; 22. one boots depress roller; 23. two road boots press roller; 24. two road boots depress rollers; 25. shoe press belt; 26. press felt; 3. preceding drying unit; 4. surface size press; 5. drying unit after; 6. belt calender; 7. curtain formula coating machine; 8. the curtain formula is coated with the back drying unit; 9. first knife type coater; 10. first scraper 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, be used to produce four folded net formers of coating craft paper, comprise rack-mounted successively four folded net building mortions 1, pressing device 2, described pressing device 2 comprises twice through type shoe press apparatus, one boots of described twice through type shoe press apparatus press roller 21 and two road boots depress rollers 24 are the boots roller, two road boots press and use shoe press belt 25 on the roller 23, one boots presses roller 21, use press felt 26 on one boots depress roller 22 and the two road boots depress rollers 24, preceding drying unit 3, surface size press 4, back drying unit 5, belt calender 6, curtain formula coating machine 7, curtain formula coating back drying unit 8, the first knife type coaters 9, first scraper 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, center stock, lining slurry and surface layer slurry respectively, the long stuff that classification is come out behind the base pastes employing occ waste paper pulp-making is as raw material, the short stock that classification is come out behind the center stock employing occ waste paper pulp-making is as raw material, the lining slurry adopts disregard message paper as raw material, surface layer slurry adopts bleached wood pulp as raw material, with the content ratio that described base pastes, center stock, lining slurry and surface layer slurry are pressed 25wt%, 35wt%, 20wt% and 20wt% respectively, compound manufacturing paper with pulp makes base board on four folded net building mortions.
Described base board is removed moisture through the pressing device squeezing, described pressing device comprises twice through type shoe press apparatus, described one boots line ball pressure 800kN/m, two road boots line ball pressure 900kN/m, one boots of described twice through type shoe press apparatus press roller and two road boots depress rollers are the boots roller, two road boots press and use the shoe press belt on the roller, one boots presses roller, use press felt on one boots depress roller and the two road boots depress rollers, cardboard enters the preceding drying cylinders that are provided with the two extension arrangement of three road lists extension arrangement drying cylinders and three roads drying cylinder and dries after squeezing, carry out two-sided applying glue then, carry out the belt press polish after the oven dry once more, the linear pressure of felt wrapped roll is 50kN/m.
Cardboard after the press polish is coated with through two curtain formula curtain formula coating machines and twice 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 coating craft paper through cooling, cans then.
Prepare base pastes respectively, center stock, lining slurry and surface layer slurry, the long stuff that classification is come out behind the base pastes employing occ waste paper pulp-making is as raw material, the short stock that classification is come out behind the center stock employing occ waste paper pulp-making is as raw material, the lining slurry adopts Mixed Office WasteMOW and useless books paper as raw material, surface layer slurry adopts bleached wood pulp and blank sheet of paper bar as raw material, with described base pastes, lining slurry and surface layer slurry are pressed 30wt% respectively, 30wt%, the content ratio of 22wt% and 18wt%, compound manufacturing paper with pulp makes base board on four folded net building mortions.
Described base board is removed moisture through the pressing device squeezing, described pressing device comprises twice through type shoe press apparatus, described one boots line ball pressure 900kN/m, two road boots line ball pressure 1000kN/m, one boots of described twice through type shoe press apparatus press roller and two road boots depress rollers are the boots roller, two road boots press and use the shoe press belt on the roller, one boots presses roller, use press felt on one boots depress roller and the two road boots depress rollers, cardboard enters the preceding drying cylinders that are provided with the two extension arrangement of three road lists extension arrangement drying cylinders and three roads drying cylinder and dries after squeezing, use film to shift sizing applicator then and carry out two-sided applying glue, the oven dry back uses the Valzone belt calender to carry out the belt press polish once more, and the linear pressure of felt wrapped roll is 60kN/m.
Cardboard after the press polish is coated with through two curtain formula curtain formula coating machines and twice 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 coating craft paper through cooling, cans then.
Prepare base pastes respectively, center stock, lining slurry and surface layer slurry, the long stuff that classification is come out behind the base pastes employing occ waste paper pulp-making is as raw material, the short stock that classification is come out behind the center stock employing occ waste paper pulp-making is as raw material, the lining slurry adopts Mixed Office WasteMOW and useless books paper as raw material, surface layer slurry adopts bleached wood pulp and Mixed Office WasteMOW, the bleaching deinking slurry that useless books paper is made is as raw material, with described base pastes, center stock, lining slurry and surface layer slurry are pressed 40wt% respectively, 30wt%, the content ratio of 15wt% and 15wt%, compound manufacturing paper with pulp makes base board on four folded net building mortions.
Described base board is removed moisture through the pressing device squeezing, described pressing device comprises twice through type shoe press apparatus, described one boots line ball pressure 1000kN/m, two road boots line ball pressure 1100kN/m, one boots of described twice through type shoe press apparatus press roller and two road boots depress rollers are the boots roller, two road boots press and use the shoe press belt on the roller, one boots presses roller, use press felt on one boots depress roller and the two road boots depress rollers, cardboard enters the preceding drying cylinders that are provided with the two extension arrangement of three road lists extension arrangement drying cylinders and three roads drying cylinder and dries after squeezing, carry out film then and shift two-sided applying glue, carry out the belt press polish after the oven dry once more, the linear pressure of felt wrapped roll is 70kN/m.
With the cardboard after the press polish successively through two curtain formula coating machines and at least the twice knife type coater be coated with, 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 coating craft paper through cooling, cans then.
Table 1
| Index name | Embodiment 1 | |
|
| The Liang of Dinging ﹙ g/m 2﹚ | 125 | 150 | 250 |
| Surface smoothness (S) | 320 | 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 (7)
1. be used to produce four folded net formers of coating craft paper, it is characterized in that: comprise rack-mounted successively four folded net building mortions, pressing device, preceding drying unit, surface size press, back drying unit, belt calender, curtain formula coating machine, curtain formula coating back drying unit, first knife type coater, first scraper coating back drying unit, second knife type coater, second scraper coating back drying unit, the soft calendaring device, cooling device and batch shaped device, described pressing device comprises twice through type shoe press apparatus, one of described twice through type shoe press apparatus presses roller and two depress rollers are the boots roller, two press use shoe press belt on the roller, and one presses roller, use press felt on one depress roller and two depress rollers.
2. the four folded net formers that are used to produce the coating craft paper as claimed in claim 1, it is characterized in that: described preceding drying unit is a drying cylinder, described drying cylinder comprises the two arrangement drying cylinders of hanging of three road lists extension arrangement drying cylinders and three roads.
3. the four folded net formers that are used to produce the coating craft paper as claimed in claim 1, it is characterized in that: described curtain formula coating machine comprises two curtain formula curtain formula apparatus for coating.
4. method of using device fabrication coating craft paper as claimed in claim 1 is characterized in that may further comprise the steps:
(1) prepares base pastes respectively, center stock, lining slurry and surface layer slurry, described base pastes and center stock adopt 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, center stock, lining slurry and surface layer slurry are respectively by 20～40wt%, 20～40wt%, the content ratio of 10～30wt% and 10～30wt%, compound manufacturing paper with pulp makes base board on four folded net building mortions;
(2) described base board is removed moisture through the pressing device squeezing, and carry out two-sided applying glue after the oven dry, carry out the belt press polish after the oven dry once more, the linear pressure of felt wrapped roll is 20～80kN/m;
(3) with the cardboard after the press polish successively through two curtain formula curtain formula coating machines and at least the twice knife type coater be coated with, 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) craft paper after will being coated with carries out soft calendaring, and the linear pressure of described soft calendaring is 60～100kN/m, obtains surface smoothness 〉=300s, is 125～250g/m quantitatively through cooling, cans then
2The coating craft paper.
5. the method for production coating craft paper as claimed in claim 4, it is characterized in that: will carry out classification behind the described occ waste paper pulp-making, the long stuff that classification is come out is done base pastes, and short stock is done center stock.
6. the method for production coating craft paper as claimed in claim 4, it 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.
7. the method for production coating craft paper as claimed in claim 5, it is characterized in that: one boots of described twice through type shoe press apparatus press roller and two road boots depress rollers are the boots roller, two road boots press roller and use the shoe press belt, and one boots press on roller, one boots depress roller and the two road boots depress rollers and use press felt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101170311A CN102182105A (en) | 2011-05-07 | 2011-05-07 | Four-stacked net forming equipment and method for producing coating kraft liner board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101170311A CN102182105A (en) | 2011-05-07 | 2011-05-07 | Four-stacked net forming equipment and method for producing coating kraft liner board |
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| CN2011101170311A Pending CN102182105A (en) | 2011-05-07 | 2011-05-07 | Four-stacked net forming equipment and method for producing coating kraft liner board |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153230A (en) * | 2014-08-07 | 2014-11-19 | 浙江景兴纸业股份有限公司 | Production method for craft paper |
| CN105316977A (en) * | 2015-06-10 | 2016-02-10 | 江苏理文造纸有限公司 | A manufacturing process method for cardboard paper with a printing surface layer |
| CN105484106A (en) * | 2016-01-14 | 2016-04-13 | 河北昌泰纸业有限公司 | High-strength, water-resistant and environment-friendly kraft paper and preparation method |
| CN105951490A (en) * | 2016-04-26 | 2016-09-21 | 玖龙纸业(天津)有限公司 | Novel high-whiteness-surface kraft cardboard production process |
| CN106087521A (en) * | 2016-07-29 | 2016-11-09 | 联盛纸业（龙海）有限公司 | A kind of production method using OCC slurry to substitute the DIP slurry senior coating coated duplex board with grey back of production |
| CN109823036A (en) * | 2019-03-19 | 2019-05-31 | 沈志峰 | A kind of buckle process units that gluing twice can be carried out to transfer film |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153230A (en) * | 2014-08-07 | 2014-11-19 | 浙江景兴纸业股份有限公司 | Production method for craft paper |
| CN104153230B (en) * | 2014-08-07 | 2017-03-01 | 浙江景兴纸业股份有限公司 | A kind of production method of craft paper |
| CN105316977A (en) * | 2015-06-10 | 2016-02-10 | 江苏理文造纸有限公司 | A manufacturing process method for cardboard paper with a printing surface layer |
| CN105484106A (en) * | 2016-01-14 | 2016-04-13 | 河北昌泰纸业有限公司 | High-strength, water-resistant and environment-friendly kraft paper and preparation method |
| CN105484106B (en) * | 2016-01-14 | 2017-06-16 | 河北昌泰纸业有限公司 | A kind of high-strength water-resistance environmental protection craft paper and preparation method |
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| CN106087521A (en) * | 2016-07-29 | 2016-11-09 | 联盛纸业（龙海）有限公司 | A kind of production method using OCC slurry to substitute the DIP slurry senior coating coated duplex board with grey back of production |
| CN109823036A (en) * | 2019-03-19 | 2019-05-31 | 沈志峰 | A kind of buckle process units that gluing twice can be carried out to transfer film |
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Application publication date: 20110914 |