CN102433791A - Production method for ultra-low quantitative corrugated core paper and product produced thereby - Google Patents
Production method for ultra-low quantitative corrugated core paper and product produced thereby Download PDFInfo
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- CN102433791A CN102433791A CN2011103116913A CN201110311691A CN102433791A CN 102433791 A CN102433791 A CN 102433791A CN 2011103116913 A CN2011103116913 A CN 2011103116913A CN 201110311691 A CN201110311691 A CN 201110311691A CN 102433791 A CN102433791 A CN 102433791A
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Abstract
The invention discloses a production method for making regeneration corrugated core paper of a micro-corrugated cardboard and a product produced thereby. The production method comprises the following steps of: 1) proportioning raw materials; 2) processing waste paper, namely sending mixed waste paper to a hydraulic pulp kneader, and then sequentially subjecting to a high-concentration desander, a coarse screen, a heavy-quality desander, a fine screen, a multi-disc thickener, a heat dispersion system, a disc mill and a pulp pool; and 3) making paper sheets, namely subjecting pulp to fore pool, a pulp washing pump, a net front screen, a dilution water pulp box, a clamping net forming device, a four-roller three-press area provided with shoe press, a drying part, a paper winding machine and a rewinder, and storing finished products in a cabin. The physics index of the ultra-low quantitative corrugated core paper produced by the method can meet the quality standard of body paper for making the micro-corrugated cardboard; as the ultra-low quantitative corrugated core paper is ultra-low quantitative, the micro-corrugated cardboard below G-corrugation can be made; meanwhile, the yield rate of cartons can be greatly improved, the production cost of the cartons is reduced, and an effect of environment protection and energy saving is further achieved.
Description
Technical field
The present invention relates to a kind of production method that is used to make the regeneration corrugating medium of microwatt cardboard, the corrugating medium that the method thus of also relating to is simultaneously manufactured belongs to the manufacturing technology field of recycled writing paper in the paper industry.
Background technology
The stupefied type of corrugation is order by size, is arranged as according to this with English alphabet: D, K, A, C, B, E, F, G, N, O, make minitype corrugation from E is stupefied to the stupefied general designation of O.Since minitype corrugation came out from nineteen ninety, the market utilization rate constantly rose, and U.S. every year is with 2% speed increment.China's minitype corrugation cardboard began starting from 2006, have characteristics such as good printing (can directly carry out hectographic printing), high strength, low weight because of it, had huge market development potentiality.The microwatt cardboard was in the market of constantly engulfing paperboard cardboard and common corrugated board in recent years, and occupation rate of market constantly rises.
The difference of microwatt cardboard and common corrugated board is that its stupefied height is more and more littler, and the stupefied height of the stupefied corrugated board of common A has 4.45mm, and microwatt stupefied from E be to be reduced to 0.3mm to the stupefied stupefied height of O from 1.16mm.The body paper that more and more lower stupefied high request is made microwatt is quantitatively more and more lower in the proof strength quality, and the facial tissue of China's microwatt is used 200g/m more at present
2Above light weight coated manila, corrugated layer is used 90g/m more
2Above fluting medium uses the body paper of this quantitative scope to be difficult to make that the lower G of stupefied height is stupefied, N is stupefied and the stupefied microwatt of O, quantitatively is the primary problem that solves so under the prerequisite of ensuring the quality of products, reduce what make the microwatt body paper.
Summary of the invention
Problem to be solved by this invention provides the production method of a kind of ultra-low quantitative corrugating medium, and the method can produce the corrugating medium of ultra-low quantitative, and this corrugating medium can be used for making the microwatt cardboard of G below stupefied.
The production method of ultra-low quantitative of the present invention corrugating medium, its concrete steps are:
1), proportioning raw materials: the yellow plate waste paper of import wastepaper and domestic true qualities is mixed according to mass percent: 20～30:80～70, deliver to the chain scraper conveyor material loading;
2), Waste Paper Handling: mixed waste paper is sent into hydrabrusher, pass through high concentration desanding device, scalping, heavy desander, fine screen, polynary dish thickener, hot decentralized system, mill, machine chest more successively; Wherein, pulper hole diameter of sieve (perforated) plate 13-16mm, the pulp concentration 3.5-4.0% behind the size degradation; Advance the slurry concentration 2.0-3.0% of scalping, scalping sieve aperture 1.5-2.0mm, purified concentrations: 1.1-1.6%; Advance the slurry concentration of fine screen: 1.1-1.4%, fine screen sieve seam 0.15-0.20mm, heat is disperseed concentration: 30%; Beating consistency: 4.0-4.5%, pulping concentration: 3.5-4.0%, pulping beating degree: 36-42 ° SR;
3), page is manufactured paper with pulp: pulping is through after copying forebay, fan pump, net fore worker, dilution water head box, folder net former, four rollers, three nips (the band boots are pressed), oven dry portion, reel machine, rewinding machine, and finished product is put in storage; The concentration of advancing to starch of net fore worker is 0.8-1.2%, and it is 0.3-0.5% that head box advances to starch concentration, goes out the wet end mass dryness fraction and can reach 18-22%, goes out the press section mass dryness fraction and can reach 46-48%, and going out oven dry portion web dryness is between the 92-94%.
The performance indications of the ultra-low quantitative corrugating medium that method of the present invention is produced are following: tightness>=0.53g/cm
3Vertical fracture length>=4.5km; Water imbibition: (just/anti-)≤60g/m2 (the Gobb method, 1min); Moisture content: 5-9%; Quantitatively: 50 ± 2g/m
2, 55 ± 2g/m
2, 60 ± 2g/m
2, 65 ± 3g/m
2, above-mentioned four quantitatively corresponding horizontal ring crush indexs difference>=6.0,6.5,7.5,8.0N.m/g.
Can find out 50-65g/m from above-mentioned each item performance indications
2The physical index of ultra-low quantitative corrugating medium can satisfy as the QUALITY STANDARD of making microwatt cardboard body paper; Because of it has ultra-low quantitative; Can make the stupefied following microwatt cardboard of G; Can improve the outlet rate of carton simultaneously because of its ultra-low quantitative that has greatly, reduce the carton production cost, also reach the effect of environmental protection and energy saving.This product is a kind of product that can comply with the packaging industry growth requirement, reduce the carton production cost.
Description of drawings
Fig. 1 is the flow chart of the inventive method.
Fig. 2 is vertical folder net former sketch map.
Fig. 3 is four rollers, three nip sketch mapes.
The specific embodiment
Do further detailed explanation in the face of the concrete steps of the production method of ultra-low quantitative of the present invention corrugating medium down:
1, proportioning raw materials: the present invention is a raw material production ultra-low quantitative corrugating medium with the mixed waste paper of import wastepaper and the yellow plate waste paper of domestic true qualities; Both mass percents are 20～30:80～70, suitably adjust the proportioning situation according to wastepaper as raw material quality and finished paper quality requirement.
2, Waste Paper Handling: will advance mixed waste paper and send into size degradation in the hydrabrusher, the aperture of pulper sieve plate is 13-16mm, and the pulp concentration behind the size degradation is controlled between the 3.5-4.0%; The size degradation disposed slurry is sent in the high concentration desanding device, removes heavier and big impurity such as sand, ironware, glass; The slurry that comes out from high concentration desanding device gets into scalping, and the slurry concentration that advances scalping is controlled between the 2.0-3.0%, and the aperture of scalping sieve aperture is 1.5-2.0mm; The slurry that scalping is come out gets in the heavy desander through the dilution back, removes heavy seeds, and the slurry concentration that advances the heavy desander is controlled between the 1.1-1.6%, advances to starch pressure 3bar, difference pressuring loss 1.3bar; The good slurry that the heavy desander comes out gets into fine screen, and the slurry concentration that advances fine screen is between 1.1-1.4%, and fine screen is a slotted screen, and the sieve seam is of a size of 0.15-0.20mm; The good slurry that fine screen is come out gets into the polydisc thickener and concentrates, and concentrates disposed slurry concentration in the 10-12% scope; The screw extruder that slurry is sent into hot decentralized system is concentrated into 30% concentration once more; Send into pre-heater; Logical steam in pre-heater; Be heated to 90-95 ℃, the slurry after the heating is sent into heat dispersion machine, and the rubbing action through abrasive disc disperses to become the fine particle that naked eyes can't be seen with impurity such as the ink particle in the slurry, sickers; Slurry after the dispersion is diluted to the concentration of 4.0-4.5%, sends into mill and carries out defibrination, makes the fiber wire-dividing broom purification, and beating degree reaches 36-42 ° of SR, promptly gets pulping, and the pulping behind the mill gets into machine chest, and pulping concentration is 3.5-4.0%.
3), page is manufactured paper with pulp: add the agent of deciding of stickies control agent and ternary retention aid and filtering aid system in the machine chest exit, addition is respectively 0.15-0.2kg/ ton paper, 0.25-0.35kg/ ton paper; Pulping is through after copying forebay, fan pump dilution; Sending into the net fore worker screens; The concentration of advancing to starch of net fore worker is controlled at 0.8-1.2%, and the retention agent and the bentonite of ternary retention aid and filtering aid system added in net fore worker exit, and addition is respectively 0.25-0.35kg/ ton paper, 0.03-0.035kg/ ton paper; The paper pulp that the net fore worker comes out is sent into paper machine and manufactured paper with pulp: at first get into the dilution water head box, head box advances to starch concentration and is controlled at 0.3-0.5%, and paper pulp is ejected on the vertical folder net former through head box; On the folder net former, be dehydrated into type, go out the wet end web dryness and can reach 18-22%, the l Water Paper page or leaf that wet end comes out gets into press section (i.e. four rollers, three nips); Impose the linear pressure of 80-120KN/m, 200-250KN/m, 1000-1100KN/m respectively at press section one, two, three nips, make the page dehydration through mechanical force, mass dryness fraction can reach 46-48%; The half-dried page that goes out press section gets into oven dry portion; Make water evaporates in the page through steam heated cylinders, go out oven dry portion web dryness and can reach 92-94%, promptly get into the paper mass dryness fraction; Reel machine batches, the rewinding machine rewinding getting into then, obtains high-quality ultra-low quantitative corrugating medium.
Method of the present invention has following advantage;
One, the present invention has used the compound retention aid and filtering aid of ternary system; Be used for improving the retention of slurry; Improve the wet end water separation capability: the chemicals that the ternary retention aid and filtering aid is used is retention agent, bentonite, is deciding agent that retention agent is the high molecular polymer polyacrylamide respectively; Deciding agent and adding point in the machine chest outlet, addition is a 0.25-0.35kg/ ton paper; All in net fore worker exit, the addition of retention agent is a 0.25-0.35kg/ ton paper for retention agent and bentonitic adding point, and bentonitic addition is a 0.03-0.035kg/ ton paper.Through the application of ternary retention aid and filtering aid system, can reach more than 70% at the retention of web part of paper machine paper stock.
Two, the present invention has used the agent of biology enzyme stickies control; Can the bulk sicker in the slurry be decomposed into tiny sicker; Avoid because of equipment such as the paper defects that has the bulk sicker to cause on the page, disconnected paper or dirty Paper dyeing machine net rollers; Be applicable to modern high-speed paper machine, can increase substantially paper machine operation efficient: the consumption of biology enzyme stickies control agent is a 0.15-0.2kg/ ton paper, adds the exit of point at machine chest.
Three, the wet end among the present invention has adopted vertical folder net former, and this folder net former can carry out fast dewatering to the positive and negative both direction of l Water Paper page or leaf, is suitable for the high-speed paper machine of the speed of a motor vehicle more than 1200m/min.
Four, the press section among the present invention adopts the squeezing mode that four rollers, three pressure zone boots are pressed; Four rollers three are pressed each nip control line pressure: a nip is that 80-120KN/m, two nips are that 200-250KN/m, three nips are 1000-1100KN/m; Three nips are that boots are pressed, and this squeezing mode is suitable for high-speed paper machine equally, and especially the boots pressing element has the characteristics of loose nip, high linear pressure; Can increase substantially the mass dryness fraction that page goes out press section, compare mass dryness fraction with press with large-roll-diameter mode commonly used now and can improve 4～5%.Go out the every raising 1% of press section mass dryness fraction by empirical data, the steam consumption of oven dry portion can be practiced thrift about 5%, therefore adopts the shoe press mode can practice thrift oven dry portion steam consumption 20～25%, energy-saving effect highly significant.
What five, the present invention proposed is not to be used also not to be suggested with the import wastepaper as the raw material of production corrugating medium in the past; Wherein the import wastepaper basically all is a primary fiber; Fibre strength is high, can guarantee the intensity index of ultra-low quantitative corrugating medium; Its whiteness is high simultaneously, can improve the whiteness and the brightness of ultra-low quantitative corrugating medium, guarantees the presentation quality as the microwatt cardboard of high-grade package packing supplies.
Claims (7)
1. the production method of a ultra-low quantitative corrugating medium, its concrete steps are:
1), proportioning raw materials: the yellow plate waste paper of import wastepaper and domestic true qualities is mixed according to mass percent: 20～30:80～70, deliver to the chain scraper conveyor material loading;
2), Waste Paper Handling: mixed waste paper is sent into hydrabrusher, pass through high concentration desanding device, scalping, heavy desander, fine screen, polynary dish thickener, hot decentralized system, mill, machine chest more successively; Wherein, pulper hole diameter of sieve (perforated) plate 13-16mm, the pulp concentration 3.5-4.0% behind the size degradation; Advance the slurry concentration 2.0-3.0% of scalping, scalping sieve aperture 1.5-2.0mm, purified concentrations: 1.1-1.6%; Advance the slurry concentration of fine screen: 1.1-1.4%, fine screen sieve seam 0.15-0.20mm, heat is disperseed concentration: 30%; Beating consistency: 4.0-4.5%, pulping concentration: 3.5-4.0%, pulping beating degree: 36-42 ° SR;
3), page is manufactured paper with pulp: pulping is through after copying forebay, fan pump, net fore worker, dilution water head box, folder net former, four rollers, three nips (the band boots are pressed), oven dry portion, reel machine, rewinding machine, and finished product is put in storage; The concentration of advancing to starch of net fore worker is 0.8-1.2%, and it is 0.3-0.5% that head box advances to starch concentration, goes out the wet end mass dryness fraction and can reach 18-22%, goes out the press section mass dryness fraction and can reach 46-48%, and going out oven dry portion web dryness is between the 92-94%.
2. method according to claim 1 is characterized in that: add the agent of deciding of stickies control agent and ternary retention aid and filtering aid system in the exit of machine chest, addition is respectively 0.15-0.2kg/ ton paper, 0.25-0.35kg/ ton paper; Add the retention agent and the bentonite of ternary retention aid and filtering aid system in the exit of net fore worker, addition is respectively 0.25-0.35kg/ ton paper, 0.03-0.035kg/ ton paper.
3. method according to claim 2 is characterized in that: the stickies control agent is a biology enzyme.
4. method according to claim 2 is characterized in that: retention agent is the high molecular polymer polyacrylamide.
5. method according to claim 1 is characterized in that: the folder net former in the step 3 adopts vertical folder net former.
6. method according to claim 1 is characterized in that: four rollers, three nips in the step 3 (the band boots are pressed) are press section, impose the linear pressure of 80-120KN/m, 200-250KN/m, 1000-1100KN/m respectively at press section one, two, three nips; Three nips are that boots are pressed.
7. the ultra-low quantitative corrugating medium that produces of the arbitrary method of claim 1-6, its performance indications are following: tightness>=0.53g/cm
3Vertical fracture length>=4.5km; Water imbibition: (just/anti-)≤60g/m2 (the Gobb method, 1min); Moisture content: 5-9%; Quantitatively: 50 ± 2g/m
2, 55 ± 2g/m
2, 60 ± 2g/m
2, 65 ± 3g/m
2, above-mentioned four quantitatively corresponding horizontal ring crush indexs difference>=6.0,6.5,7.5,8.0N.m/g.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877354A (en) * | 2012-10-19 | 2013-01-16 | 河南江河纸业股份有限公司 | Method for producing carbon-free and thermosensitive body paper by using large proportion of chemithermomechanical pulp |
| CN103233386A (en) * | 2013-04-12 | 2013-08-07 | 陕西科技大学 | Preparation method of corrugating medium paper |
| CN106958160A (en) * | 2017-04-01 | 2017-07-18 | 安徽山鹰纸业股份有限公司 | The preparation method of environmentally friendly writing culture paper |
| CN108018743A (en) * | 2017-12-31 | 2018-05-11 | 东莞市泰昌纸业有限公司 | Use the method for reclaimed waste paper production corrugating medium |
| CN108691227A (en) * | 2018-05-29 | 2018-10-23 | 谢响玲 | A kind of waste paper regenerating process |
| CN109235097A (en) * | 2018-09-07 | 2019-01-18 | 中条山有色金属集团有限公司 | A kind of preparation method and applications of corrugating medium's body paper |
| CN109577057A (en) * | 2018-11-08 | 2019-04-05 | 玖龙纸业（太仓）有限公司 | A kind of production method of heat-sensitive paper body paper |
| CN110965381A (en) * | 2019-12-26 | 2020-04-07 | 山东华泰纸业股份有限公司 | Low-gram-weight high-strength corrugated medium paper and preparation process thereof |
| CN112941964A (en) * | 2021-04-08 | 2021-06-11 | 山东仁丰特种材料股份有限公司 | Method for producing heat-sensitive base paper by fourdrinier vat paper machine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877354A (en) * | 2012-10-19 | 2013-01-16 | 河南江河纸业股份有限公司 | Method for producing carbon-free and thermosensitive body paper by using large proportion of chemithermomechanical pulp |
| CN103233386A (en) * | 2013-04-12 | 2013-08-07 | 陕西科技大学 | Preparation method of corrugating medium paper |
| CN106958160A (en) * | 2017-04-01 | 2017-07-18 | 安徽山鹰纸业股份有限公司 | The preparation method of environmentally friendly writing culture paper |
| CN108018743A (en) * | 2017-12-31 | 2018-05-11 | 东莞市泰昌纸业有限公司 | Use the method for reclaimed waste paper production corrugating medium |
| CN108018743B (en) * | 2017-12-31 | 2019-09-27 | 东莞市泰昌纸业有限公司 | Use the method for reclaimed waste paper production corrugating medium |
| CN108691227A (en) * | 2018-05-29 | 2018-10-23 | 谢响玲 | A kind of waste paper regenerating process |
| CN109235097A (en) * | 2018-09-07 | 2019-01-18 | 中条山有色金属集团有限公司 | A kind of preparation method and applications of corrugating medium's body paper |
| CN109577057A (en) * | 2018-11-08 | 2019-04-05 | 玖龙纸业（太仓）有限公司 | A kind of production method of heat-sensitive paper body paper |
| CN110965381A (en) * | 2019-12-26 | 2020-04-07 | 山东华泰纸业股份有限公司 | Low-gram-weight high-strength corrugated medium paper and preparation process thereof |
| CN112941964A (en) * | 2021-04-08 | 2021-06-11 | 山东仁丰特种材料股份有限公司 | Method for producing heat-sensitive base paper by fourdrinier vat paper machine |
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