EP2499297A2 - Verfahren zur herstellung von papier oder dgl. - Google Patents
Verfahren zur herstellung von papier oder dgl.Info
- Publication number
- EP2499297A2 EP2499297A2 EP10807308A EP10807308A EP2499297A2 EP 2499297 A2 EP2499297 A2 EP 2499297A2 EP 10807308 A EP10807308 A EP 10807308A EP 10807308 A EP10807308 A EP 10807308A EP 2499297 A2 EP2499297 A2 EP 2499297A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- linear
- polymer
- cationic
- bentonite
- anionic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
Definitions
- the present invention relates to a process for producing paper or the like. in which cationic polymers consisting of polyacrylamide and a finely divided, inorganic component are added to the paper stock after the last shearing step and before the stock casserole, whereupon the stock is subjected to dewatering with sheet formation and drying of the sheets.
- microparticle systems consisting of a cationic polymer and a cationic polymer fine particulate inorganic component may be added to the stock after the last shear stage and before the headbox to maximize retention.
- cationic polymers polymers such as poly- acrylamide, polyamidoamine, polyethyleneamine and the like. used.
- Such a system is disclosed, for example, in EP-B 1 242 685, in which a cellulosic suspension is flocculated by addition of a cationic polymer and by shearing, followed by shearing, a siliceous material and an anionic branched polymer consisting of an ethylenically unsaturated, anionic monomer or monomer mixture and a branching agent, whereby both the retention, the dewatering and the formation should be improved.
- the present invention now aims at providing, on the basis of the known retention systems and flocculation systems, a retention system which, on the one hand, shows an even better retention compared to conventional systems and, on the other hand, besides a marked saving in the amount of retentate added.
- the dewatering in sheet formation is also extremely accelerated to produce a paper whose sheet surface is as uniform as possible.
- the method according to the invention is characterized in that a polymer mixture consisting of a linear, cationic polymer and a linear, anionic copolymer, the ionicity of which is anionic as a whole, is additionally added immediately before the headbox.
- the process is carried out so that a Polydiallyldimethylammoniumchlorid is used with about 6 moles of cationic charge per kg of dry product in the polymer mixture as a linear, cationic polymer.
- Polydiallyldimethylammonium chloride having about 6 moles of cationic charge per kg of dry product is used singly as a cationic retention agent in papermaking, but it has been found that when polydiallyldimethylammonium chloride is used in combination with a linear after the last shearing step and immediately before the headbox is added to anionic copolymer, not only a further improvement of the retention can be achieved, but in particular .It can be ensured that a significant flocculation does not take place, in particular no flakes can be formed in a formation disturbing the formation of sheet size more, so that the overall retention is further improved and, in particular, the wastewater quality in papermaking can be further increased with respect to the absence of suspended solids.
- the linear, cationic polymer having a particle size, in the non-swollen state, of less than 2 ⁇ is used.
- the particles of the linear, cationic polymer, especially in the swollen state are of the same size as the particles of the fillers in the paper stock, so that a particularly uniform surface of the paper is obtained Paper sheets after drainage and formation, with improved retention, can be achieved.
- a further enhancement of the retention system effectiveness can be achieved by using as linear anionic copolymer a copolymer of acrylamide and sodium acrylate having a molar ratio of acrylamide to sodium acrylate of 50:50 to 70:30 and about 4 moles of anionic charge per kg of dry product, is used.
- a linear copolymer By using such a linear copolymer, it is possible to use an anionic, linear copolymer which, in particular in combination with the cationic polymer in the polymer mixture, further improves the retention and largely arrests the reflocculation.
- the linear anionic copolymer is used with a particle size in the non-swollen state, between 30 and 250 ⁇ , it is possible to provide the linear anionic copolymer in the same order of magnitude as the filler in the paper stock, which in addition improved retention, which can be achieved simultaneously using lower levels of retention aid, can also provide a completely smooth and trouble-free paper surface after the sheet has dried.
- the process is conducted such that the quantitative ratio of the linear, cationic polymer to the linear, anionic copolymer in the polymer mixture is between 2: 8 and 0.5: 9.5 In particular, it may be ensured that there is no re-flocculation of the pulp, thus ensuring that the formation is not affected.
- the process according to the present invention is carried out so that the polymer mixture as a suspension in oil, in particular in a mixture of isoparaffin oil, technical white oil, sorbitan monooleate and optionally additives, such as a stabilizer such.
- a stabilizer such as a stabilizer, a hydrophobic, modifying acrylic copolymer, a polymer-activating, surface-active material, in particular the reaction rate of the polymer mixture is increased, which in turn can improve the total fiber retention and on the other hand can be ensured that the polymer mixture used is not decomposed, has an active surface and in particular a further undesired polymerization is certainly withheld, whereby a further reduction of the amounts of material to be used is achieved with the same time improved retention.
- further additives such as a stabilizer, a hydrophobic, modifying acrylic copolymer, a polymer-activating, surface-active material, in particular the reaction rate of the polymer mixture is increased, which in turn can improve the total fiber retention and on the other hand can be ensured that the polymer mixture used is not decomposed, has an active surface and in particular a further undesired polymerization is certainly withheld, whereby a further reduction of the amounts of material to be used is achieved with the same time improved retention.
- the process is conducted so that the polyacrylamide to be added after the last shearing step is used as a dispersion or emulsion in oil.
- the surface tension of the paper material is further reduced and thereby the use of defoamers in the paper machine cycle can either be completely avoided or extremely strong, ie up to 70%, be reduced.
- this is performed so that is used as finely divided, inorganic component, an alkaline activated bentonite with a silicon dioxide content less than 2 wt .-%, in particular a substantially completely consisting of montmorillonite existing, alkaline activated bentonite.
- an alkaline-activated bentonite having a silicon dioxide content of less than 2% by weight or, in particular, using an essentially completely montmorillonite-containing alkaline-activated bentonite disruption of the leaf surface by the hard silicon dioxide crystals is certainly avoided.
- a bentonite alkaline activated a bentonite with an inner surface of at least 400 m 2 / g, in particular from 600 to 850 m 2 / g, and an average particle size of less than 2 ⁇ is used , the uptake of impurities by the large inner surface of the Bentonite, especially montmorillonite supported and thus the purity of the water cycle, especially the wastewater quality further raised and significantly improved.
- the method according to the invention is further developed such that a bentonite with a negative surface charge and positive edge charge is used as the alkaline activated bentonite. Due to a particularly rapid formation of hydrogen bonds with the paper stock fibers, a particularly rapid separation of water and solid can be made possible, whereby the dewatering of the sheet formation compared to conventional methods is extremely accelerated.
- a further improvement of the activity of the alkaline activated bentonite is achieved by using the bentonite having a pH in the suspension of at least 7.8, in particular at least 8, which in particular improves the formation and contributes to an acceleration of the dehydration.
- the process according to the invention is carried out so that the paper stock after the last shearing step is first the cationic polyacrylamide and immediately before the headbox the bentonite and at the same time the polymer mixture is added.
- bentonite and the polymer mixture are added to the paper stock at the same time as the headbox, a further reduction in the formation of floccules is achieved, as a result of which overall improved retention is achieved by up to 30%. reduced material usage can be achieved.
- s in the improved retention is due to reduction of floc size and avoiding Reflokku--regulation accelerated dewatering and the formation improved.
- the stream had a temperature of 40 ° C to 55 ° C in all experiments.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10807308T PL2499297T3 (pl) | 2009-11-13 | 2010-11-03 | Sposób wytwarzania papieru lub tym podobnych |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0180009A AT508256B1 (de) | 2009-11-13 | 2009-11-13 | Verfahren zur herstellung von papier oder dgl. |
PCT/AT2010/000417 WO2011057309A2 (de) | 2009-11-13 | 2010-11-03 | Verfahren zur herstellung von papier oder dgl. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2499297A2 true EP2499297A2 (de) | 2012-09-19 |
EP2499297B1 EP2499297B1 (de) | 2013-09-25 |
Family
ID=43302223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10807308.1A Active EP2499297B1 (de) | 2009-11-13 | 2010-11-03 | Verfahren zur herstellung von papier oder dgl. |
Country Status (21)
Country | Link |
---|---|
US (1) | US8562787B2 (de) |
EP (1) | EP2499297B1 (de) |
JP (1) | JP2013510956A (de) |
KR (1) | KR101541385B1 (de) |
CN (1) | CN102597369B (de) |
AR (1) | AR078983A1 (de) |
AT (1) | AT508256B1 (de) |
AU (1) | AU2010317637A1 (de) |
BR (1) | BR112012011114A2 (de) |
CA (1) | CA2780687A1 (de) |
CL (1) | CL2012001255A1 (de) |
CO (1) | CO6551743A2 (de) |
ES (1) | ES2440561T3 (de) |
NZ (1) | NZ599636A (de) |
PE (1) | PE20110515A1 (de) |
PL (1) | PL2499297T3 (de) |
PT (1) | PT2499297E (de) |
TW (1) | TW201120279A (de) |
UY (1) | UY33024A (de) |
WO (1) | WO2011057309A2 (de) |
ZA (1) | ZA201204245B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103952940B (zh) * | 2014-04-30 | 2016-08-24 | 金东纸业(江苏)股份有限公司 | 纸张的制造方法 |
CN104861103B (zh) * | 2015-04-23 | 2017-04-19 | 浙江理工大学 | 有机复合钠化改性膨润土微粒助留助滤剂制备方法及应用 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4913775A (en) * | 1986-01-29 | 1990-04-03 | Allied Colloids Ltd. | Production of paper and paper board |
GB8602121D0 (en) | 1986-01-29 | 1986-03-05 | Allied Colloids Ltd | Paper & paper board |
US4684604A (en) | 1986-04-24 | 1987-08-04 | Eastman Kodak Company | Oxidative release of photographically useful groups from hydrazide compounds |
US5584966A (en) | 1994-04-18 | 1996-12-17 | E. I. Du Pont De Nemours And Company | Paper formation |
JPH09250095A (ja) * | 1996-03-13 | 1997-09-22 | Nippon Paper Ind Co Ltd | 紙の抄造方法 |
EP1293603B1 (de) * | 1997-09-30 | 2007-07-11 | Nalco Chemical Company | Herstellung von Papier mit kolloidalen Borosilikaten |
TW524910B (en) * | 1999-11-08 | 2003-03-21 | Ciba Spec Chem Water Treat Ltd | Manufacture of paper and paperboard |
JP3681655B2 (ja) * | 2000-08-03 | 2005-08-10 | ハイモ株式会社 | 中質紙の抄紙方法 |
MY140287A (en) * | 2000-10-16 | 2009-12-31 | Ciba Spec Chem Water Treat Ltd | Manufacture of paper and paperboard |
DE20220979U1 (de) * | 2002-08-07 | 2004-10-14 | Basf Ag | Papierprodukt |
DE10236252B4 (de) | 2002-08-07 | 2005-06-30 | Basf Ag | Verfahren zur Herstellung von Papier, Pappe und Karton |
DE102005043800A1 (de) * | 2005-09-13 | 2007-03-22 | Basf Ag | Verfahren zur Herstellung von Papier, Pappe und Karton |
GB0702249D0 (en) * | 2007-02-05 | 2007-03-14 | Ciba Sc Holding Ag | Manufacture of paper or paperboard |
GB0702248D0 (en) * | 2007-02-05 | 2007-03-14 | Ciba Sc Holding Ag | Manufacture of Filled Paper |
-
2009
- 2009-11-13 AT AT0180009A patent/AT508256B1/de active
-
2010
- 2010-11-03 PL PL10807308T patent/PL2499297T3/pl unknown
- 2010-11-03 US US13/509,373 patent/US8562787B2/en active Active
- 2010-11-03 ES ES10807308.1T patent/ES2440561T3/es active Active
- 2010-11-03 NZ NZ599636A patent/NZ599636A/xx not_active IP Right Cessation
- 2010-11-03 CA CA2780687A patent/CA2780687A1/en not_active Abandoned
- 2010-11-03 EP EP10807308.1A patent/EP2499297B1/de active Active
- 2010-11-03 JP JP2012538133A patent/JP2013510956A/ja active Pending
- 2010-11-03 WO PCT/AT2010/000417 patent/WO2011057309A2/de active Application Filing
- 2010-11-03 KR KR1020127015257A patent/KR101541385B1/ko active IP Right Grant
- 2010-11-03 CN CN201080051044.7A patent/CN102597369B/zh not_active Expired - Fee Related
- 2010-11-03 PT PT108073081T patent/PT2499297E/pt unknown
- 2010-11-03 AU AU2010317637A patent/AU2010317637A1/en not_active Abandoned
- 2010-11-03 BR BR112012011114A patent/BR112012011114A2/pt not_active IP Right Cessation
- 2010-11-11 UY UY0001033024A patent/UY33024A/es active IP Right Grant
- 2010-11-12 PE PE2010001047A patent/PE20110515A1/es not_active Application Discontinuation
- 2010-11-12 TW TW099138944A patent/TW201120279A/zh unknown
- 2010-11-12 AR ARP100104196A patent/AR078983A1/es not_active Application Discontinuation
-
2012
- 2012-05-11 CL CL2012001255A patent/CL2012001255A1/es unknown
- 2012-05-11 CO CO12077627A patent/CO6551743A2/es not_active Application Discontinuation
- 2012-06-11 ZA ZA2012/04245A patent/ZA201204245B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2011057309A2 * |
Also Published As
Publication number | Publication date |
---|---|
PL2499297T3 (pl) | 2014-03-31 |
CN102597369A (zh) | 2012-07-18 |
AT508256B1 (de) | 2010-12-15 |
AU2010317637A1 (en) | 2012-05-24 |
ZA201204245B (en) | 2013-02-27 |
KR101541385B1 (ko) | 2015-08-03 |
CN102597369B (zh) | 2014-10-29 |
PT2499297E (pt) | 2014-01-02 |
KR20120081248A (ko) | 2012-07-18 |
BR112012011114A2 (pt) | 2016-07-05 |
WO2011057309A2 (de) | 2011-05-19 |
AU2010317637A2 (en) | 2012-05-31 |
CL2012001255A1 (es) | 2012-09-28 |
AT508256A4 (de) | 2010-12-15 |
TW201120279A (en) | 2011-06-16 |
EP2499297B1 (de) | 2013-09-25 |
UY33024A (es) | 2011-05-31 |
PE20110515A1 (es) | 2011-08-08 |
US20120222830A1 (en) | 2012-09-06 |
ES2440561T3 (es) | 2014-01-29 |
AR078983A1 (es) | 2011-12-14 |
CA2780687A1 (en) | 2011-05-19 |
CO6551743A2 (es) | 2012-10-31 |
NZ599636A (en) | 2013-09-27 |
WO2011057309A3 (de) | 2011-07-07 |
JP2013510956A (ja) | 2013-03-28 |
US8562787B2 (en) | 2013-10-22 |
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