CN100351461C - Paper retention-aid process - Google Patents
Paper retention-aid process Download PDFInfo
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- CN100351461C CN100351461C CNB2005101245276A CN200510124527A CN100351461C CN 100351461 C CN100351461 C CN 100351461C CN B2005101245276 A CNB2005101245276 A CN B2005101245276A CN 200510124527 A CN200510124527 A CN 200510124527A CN 100351461 C CN100351461 C CN 100351461C
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Abstract
The present invention relates to the paper retention technology. The present invention comprises the following steps: firstly beating and dispersing plant fiber in water at the beating degree of 30-70 SR; secondly adding filling materials of which the amount is as 1 to 50% as plant fibre, 0.2 to 5% of cationic starch and 0.05 to 0.5% of AKD and mixing uniformly; adding 0.01 to 5.0% of serpentine cation particle retention agent relative to the quality of plant fibre before slurry entering into a punching stuff pump, a pressure screen, a head tank and a head box; adding 0.01 to 1.0% of anion polyacrylamide anion which is relative to the quality of plant fibre before entering the head box; finally forming on the paper machine. A serpentine cation particulate retention agent system is added in paper making pulp materials, the beating degree paper pulp materials is obviously reduced, and the retention and dehydration effects of the net part of the paper machine is increased, and the paper making cost is reduced.
Description
Technical field
The invention belongs to the paper industry field, be specifically related to a kind of retention-aid process of paper.
Background technology
At present, traditional microparticle retention and drainage system that paper industry uses is made up of cation superpolymer and anionic microparticles two components, tiny component elder generation and cation superpolymer combination, form the poly-group of big wadding, the cation superpolymer addition is generally 0.01～0.1%, then, through high shear forces the poly-group of big wadding is smashed.At last, add anionic microparticles, addition is 0.05～0.8%, and the tiny component floc sedimentation of smashing is adsorbed by anionic microparticles, produces retention and drainage effect.The compozil system that this typical microparticle retention and drainage system has the cationic polyacrylamide hydrocol system that (being called for short CPAM)/bentonite is formed and cationic starch/cataloid to form, these traditional microparticle retention and drainage system chemistry drug dosages are big, cost is high.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, provide a kind of and can significantly reduce the slurry pulping degree, improve the retention-aid process with dehydrating effect and the paper that reduces cost kept of web part of paper machine.
For achieving the above object, the technical solution used in the present invention is: at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 30-70 ° of SR; Secondly add and mix with respect to the filler of string quality 1-50%, cationic starch and the 0.05-0.5%AKD of 0.2-5%; Then, the slurry that mixes is sent into approach system before the paper machine net, before net, add serpentine cationic microparticles retention agent before the fan pump of approach system, pressurized screen, header box or the head box with respect to the mass ratio 0.01-5.0% of string, then, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.01-0.7% of string.
Filler of the present invention is calcium carbonate, talcum powder or china clay.
The present invention adds serpentine cationic microparticles retention aid and filtering aid system in paper making pulp, can significantly reduce the slurry pulping degree, improves keeping with dehydrating effect and reducing the papermaking cost of web part of paper machine.
The specific embodiment
Embodiment 1, and at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 50 ° of SR; Secondly add and mix with respect to the calcium carbonate of string quality 50%, 0.2% cationic starch and 0.1%AKD, then the slurry that mixes is sent into approach system before the paper machine net, before net, add serpentine cationic microparticles retention agent before the fan pump of approach system with respect to the mass ratio 5.0% of string, then, slurry is through pressurized screen, header box, to head box, before head box, add anionic polyacrylamide with respect to the mass ratio 0.05% of string, at last, slurry is through the head box moulding of manufacturing paper with pulp to the paper machine.
Embodiment 2, and at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 30 ° of SR; Secondly add and mix with respect to the talcum powder of string quality 30%, 3% cationic starch and 0.3%AKD, then the slurry that mixes is sent into approach system before the paper machine net, before net, add before the pressurized screen of approach system then with respect to the serpentine cationic microparticles retention agent of the mass ratio 0.7% of string, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.5% of string.
Embodiment 3, and at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 60 ° of SR; Secondly add and mix with respect to the china clay of string quality 10%, 1% cationic starch and 0.2%AKD, then, the slurry that mixes is sent into approach system before the paper machine net, before net, add before the header box of approach system then with respect to the serpentine cationic microparticles retention agent of the mass ratio 1.6% of string, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.7% of string.
Embodiment 4, and at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 40 ° of SR; Secondly add and mix with respect to the calcium carbonate of string quality 40%, 4% cationic starch and 0.4%AKD, then, the slurry that mixes is sent into approach system before the paper machine net, before head box, add then the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the serpentine cationic microparticles retention agent of the anionic polyacrylamide of the mass ratio 0.1% of string and 2.8%.
Embodiment 5, and at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 70 ° of SR; Secondly add and mix with respect to the china clay of string quality 1%, 2% cationic starch and 0.05%AKD, then the slurry that mixes is sent into approach system before the paper machine net, before net, add serpentine cationic microparticles retention agent before the fan pump of approach system with respect to the mass ratio 4.2% of string, then, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.01% of string.
Embodiment 6, and at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 45 ° of SR; Secondly add and mix with respect to the talcum powder of string quality 20%, 5% cationic starch and 0.5%AKD, then, the slurry that mixes is sent into approach system before the paper machine net, before net, add serpentine cationic microparticles retention agent before the pressurized screen of approach system with respect to the mass ratio 0.01% of string, then, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.05% of string.
Used fan pump, pressurized screen, header box and head box all are the general process devices of papermaking among the preparation technology of the present invention.
Claims (7)
1, a kind of retention-aid process of paper is characterized in that:
1) at first the string of papermaking is pulled an oar in water and disperse and the control beating degree is 30-70 ° of SR;
2) secondly adding mixes with respect to the filler of string quality 1-50%, cationic starch and the 0.05-0.5%AKD of 0.2-5%;
3) then, the slurry that mixes is sent into approach system before the paper machine net, before net, add serpentine cationic microparticles retention agent before the fan pump of approach system, pressurized screen, header box or the head box with respect to the mass ratio 0.01-5.0% of string, then, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.01-0.7% of string.
2, the retention-aid process of paper according to claim 1 is characterized in that: said filler is calcium carbonate, talcum powder or china clay.
3, the retention-aid process of paper according to claim 1 is characterized in that: at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 50 ° of SR; Secondly add and mix with respect to the calcium carbonate of string quality 50%, 0.2% cationic starch and 0.1%AKD, then the slurry that mixes is sent into approach system before the paper machine net, before net, add serpentine cationic microparticles retention agent before the fan pump of approach system with respect to the mass ratio 5.0% of string, then, slurry is through pressurized screen, header box, to head box, before head box, add anionic polyacrylamide with respect to the mass ratio 0.05% of string, at last, slurry is through the head box moulding of manufacturing paper with pulp to the paper machine.
4, the retention-aid process of paper according to claim 1 is characterized in that: at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 30 ° of SR; Secondly add and mix with respect to the talcum powder of string quality 30%, 3% cationic starch and 0.3%AKD, then the slurry that mixes is sent into approach system before the paper machine net, before net, add before the pressurized screen of approach system then with respect to the serpentine cationic microparticles retention agent of the mass ratio 0.7% of string, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.5% of string.
5, the retention-aid process of paper according to claim 1 is characterized in that: at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 60 ° of SR; Secondly add and mix with respect to the china clay of string quality 10%, 1% cationic starch and 0.2%AKD, then, the slurry that mixes is sent into approach system before the paper machine net, before net, add before the header box of approach system then with respect to the serpentine cationic microparticles retention agent of the mass ratio 1.6% of string, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.7% of string.
6, the retention-aid process of paper according to claim 1 is characterized in that: at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 70 ° of SR; Secondly add and mix with respect to the china clay of string quality 1%, 2% cationic starch and 0.05%AKD, then the slurry that mixes is sent into approach system before the paper machine net, before net, add serpentine cationic microparticles retention agent before the fan pump of approach system with respect to the mass ratio 4.2% of string, then, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.01% of string.
7, the retention-aid process of paper according to claim 1 is characterized in that: at first the string of papermaking is pulled an oar in water dispersion and control beating degree are 45 ° of SR; Secondly add and mix with respect to the talcum powder of string quality 20%, 5% cationic starch and 0.5%AKD, then, the slurry that mixes is sent into approach system before the paper machine net, before net, add serpentine cationic microparticles retention agent before the pressurized screen of approach system with respect to the mass ratio 0.01% of string, then, before head box, add anionic polyacrylamide, the moulding of on the paper machine, manufacturing paper with pulp at last with respect to the mass ratio 0.05% of string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101245276A CN100351461C (en) | 2005-12-12 | 2005-12-12 | Paper retention-aid process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101245276A CN100351461C (en) | 2005-12-12 | 2005-12-12 | Paper retention-aid process |
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| CN1789550A CN1789550A (en) | 2006-06-21 |
| CN100351461C true CN100351461C (en) | 2007-11-28 |
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| CNB2005101245276A Expired - Fee Related CN100351461C (en) | 2005-12-12 | 2005-12-12 | Paper retention-aid process |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215800B (en) * | 2008-01-04 | 2010-06-09 | 广州造纸股份有限公司 | Method for producing low-dosing newsprint paper by using unitary retention and filter aid |
| CN101634120B (en) * | 2009-08-25 | 2011-12-28 | 陕西科技大学 | Method for improving performance of paper stock in retention and drainage aiding |
| CN101725074B (en) * | 2009-09-14 | 2012-05-23 | 陕西科技大学 | Method for increasing retention of paper filler |
| CN103103894B (en) * | 2012-12-27 | 2016-02-17 | 韶能集团广东绿洲纸模包装制品有限公司 | A kind of method improving molded pulp fiber retention |
| CN105625078B (en) * | 2014-12-01 | 2017-09-12 | 金东纸业（江苏）股份有限公司 | A kind of paste system of papermaking green end |
| CN105088859B (en) * | 2015-07-14 | 2017-03-29 | 武汉大学 | A kind of ball-type polyelectrolyte brush binary retention aid system and its method for improving paper pulp retention |
| CN111996834A (en) * | 2020-07-17 | 2020-11-27 | 浙江理工大学 | Method for improving retention and drainage performance of paper stock |
| CN112342841B (en) * | 2020-10-30 | 2022-11-18 | 四川凤生纸业科技股份有限公司 | Green ball treatment process and system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1580395A (en) * | 2004-05-18 | 2005-02-16 | 岳阳纸业股份有限公司 | Light printing paper and its manufacture method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1580395A (en) * | 2004-05-18 | 2005-02-16 | 岳阳纸业股份有限公司 | Light printing paper and its manufacture method |
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| CN1789550A (en) | 2006-06-21 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangxi Chenming Paper Co., Ltd. Assignor: Shaanxi University of Science and Technology Contract fulfillment period: 2009.3.28 to 2015.3.27 contract change Contract record no.: 2009360000034 Denomination of invention: Paper retention-aid process Granted publication date: 20071128 License type: Exclusive license Record date: 2009.6.23 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.28 TO 2015.3.27; CHANGE OF CONTRACT Name of requester: JIANGXI CHENMING PAPER CO., LTD Effective date: 20090623 |
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