EP2274477B1 - Verfahren zur herstellung von papier und karton - Google Patents

Verfahren zur herstellung von papier und karton Download PDF

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Publication number
EP2274477B1
EP2274477B1 EP09742222.4A EP09742222A EP2274477B1 EP 2274477 B1 EP2274477 B1 EP 2274477B1 EP 09742222 A EP09742222 A EP 09742222A EP 2274477 B1 EP2274477 B1 EP 2274477B1
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EP
European Patent Office
Prior art keywords
polymer
cationic
agent
retention agent
retention
Prior art date
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Not-in-force
Application number
EP09742222.4A
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English (en)
French (fr)
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EP2274477A2 (de
Inventor
René Hund
Gatien Faucher
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SPCM SA
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SPCM SA
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Publication of EP2274477B1 publication Critical patent/EP2274477B1/de
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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
    • 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
    • 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
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • 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
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • D21H17/375—Poly(meth)acrylamide
    • 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
    • D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
    • 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
    • D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
    • D21H17/45—Nitrogen-containing 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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • 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
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays

Definitions

  • the invention relates to a process for the production of paper, cardboard or the like using at least two retention and drainage agents each organic and of overall cationic charge, respectively a main agent and a dual retention agent, also designated secondary agent of retention. It also relates to paper or paperboard obtained by this method. Finally, it relates to the use of specific crosslinked cationic organic (co) polymers as a dual retention agent.
  • Retention and dewatering systems are well known in the papermaking process. Their function is to improve the retention of cellulosic fibers and mineral fillers during the manufacture of the sheet.
  • the size of the organic crosslinked particles is a direct indication of their particle agglomeration (ie retention) capacity. and therefore the efficiency of the particle. This is explained, in particular, by the fact that a decrease in the size of the particles makes it possible to increase the availability of the charged sites, anionic or cationic, which will then be able to contribute in greater numbers to the flocculation of the fibers.
  • the expression "low agitation” denotes a stirring that does not entail any significant modification of the structure of the dual retention agent, before being added to the suspension. fibrous.
  • the agitation is of the order of 50 to 500 rpm, preferably 70 to 200 rpm.
  • the dual retention agent has a cationicity of less than 4 meq / g.
  • the method of the invention makes it possible to obtain a significantly improved retention without any negative effect.
  • An additional characteristic of this improvement is also improving the dewatering properties while preserving the quality of formation of the sheet.
  • a dual or microparticulate retention system almost universally required the combination of two oppositely charged retention agents (generally cationic polymer + bentonite).
  • silica or anionic organic polymer and not 2 cationic retention agents as is the case of the invention.
  • these include, in particular, the main retention systems used by the paper industry such as FLOBIND (SNF), HYDROCOL (Ciba), POLYFLEX (Cytec), COMPOSIL (Eka), PARTICOL (Dupont), POSITEK (Nalco). ..
  • the invention is directed to an improved process which consists in adding, to the suspension or fibrous mass or pulp to be flocculated, as main retention agent, at least one cationic (co) polymer, followed by the addition, mixed or not, at least one dual cross-linked cationic organic retention agent, obtained in dispersion and having a UL viscosity of between 1.3 and 2.7 cps, preferably 1.5 and 2.4 cps, and an apparent cationicity ratio of between 25 and 75%.
  • the method of the invention can take several embodiments.
  • the dewatering retention system used in the process for producing paper, paperboard or the like comprises respectively a main agent and a dual retention agent, each organic and with a global cationic charge as defined in accordance with US Pat. 'invention.
  • the main retention agent will be introduced after the so-called “fan pump” and before the pressure or pressure screen and the dual retention agent will be injected after the "pressure screen", last point of strong shear before the headbox.
  • the two cationic organic retention agents according to the invention and a tertiary retention agent chosen from the anionic global charge retention agents well known to the man are added to the suspension. business.
  • the order of the addition points of the dual retention agent, the main retention agent and the tertiary retention agent can be reversed, however, preferably, the dual agent will be introduced after the pressure or pressure screen, and before the tertiary agent.
  • the two cationic organic retention agents according to the invention are added to the suspension in the form of a mixture, at one or more points of addition, in association or not with a retention agent. tertiary, before or after the "pressure screen".
  • the cationic charge of the main retention and dewatering agent can also be obtained directly from the abovementioned (co) polymers by means of well-known degradation or hydrolysis reactions of the skilled person.
  • the main retention agent may also be a cationic polymer of natural origin, for example starch or guar gum derivatives.
  • the main retention agent may also be of amphoteric nature comprising, in combination with the cationic charges, anionic charges carried by anionic monomers, such as, for example, (meth) acrylic acid, acrylamidomethylpropane acid, sulfonic acid, itaconic acid, maleic anhydride, maleic acid, vinylsulfonic acid, methallyl sulfonic acid and their salts.
  • anionic monomers such as, for example, (meth) acrylic acid, acrylamidomethylpropane acid, sulfonic acid, itaconic acid, maleic anhydride, maleic acid, vinylsulfonic acid, methallyl sulfonic acid and their salts.
  • This polymer does not require the development of a particular polymerization process. It can be obtained by any of the polymerization techniques well known to those skilled in the art: gel polymerization, precipitation polymerization, emulsion polymerization (aqueous or inverse) followed or not by a distillation step, suspension polymerization, solution, these polymerizations being followed or not a step for isolating a dry form of the (co) polymer by all types of means well known to those skilled in the art.
  • the main retention agent may also be branched or crosslinked preferably during (and / or possibly after) the polymerization, in the presence of a branching agent and optionally a transfer agent.
  • branching agents methylene bisacrylamide (MBA), ethylene glycol di-acrylate, polyethylene glycol dimethacrylate, diacrylamide, cyanomethylacrylate, vinyloxyethylacrylate or methacrylate, triallylamine, formaldehyde, glyoxal, glycidyl ether compounds such as ethylene glycol diglycidyl ether, or epoxy or any other means well known to those skilled in the art for branching.
  • MBA methylene bisacrylamide
  • ethylene glycol di-acrylate polyethylene glycol dimethacrylate
  • diacrylamide diacrylamide
  • cyanomethylacrylate vinyloxyethylacrylate or methacrylate
  • triallylamine formaldehyde
  • glyoxal glycidyl ether compounds
  • the amount of cationic (co) polymer introduced into the suspension to be flocculated is between thirty and one thousand grams of active polymer per ton of dry pulp (30 and 1000 g / t), or between 0.003 percent and 0.1 hundred. It has been observed that if the amount is less than 0.003%, no significant retention is obtained. Similarly, if this amount exceeds 0.1%, no noticeable improvement is observed.
  • the amount of main retention agent introduced is between 0.015 and 0.05 percent (0.015 and 0.05%) of the amount of the dry pulp, ie between 150 g / t and 500 g / t.
  • the injection or the introduction of the main retention agent according to the invention is carried out, preferably, before a shearing step, in practice, advantageously, before the "pressure screen", in the diluted paper pulp or "thin "stock”, ie a paste diluted to about 0.5 - 1.5% solids such as cellulose fibers, optional fillers, and the various customary additives of papermaking.
  • the dual retention and dewatering agent is a cationic organic polymer obtained by dispersion polymerization (water-in-water emulsion or, preferably, standard inverse emulsion) by conventional polymerization processes.
  • the ratio apparent cationicity is equal to: C1 / C2 * 100.
  • the retention agents of the present invention are obtained using, during the polymerization, a crosslinking agent, well known to those skilled in the art, and preferably in the absence of transfer agent.
  • the dual retention agents are obtained by polymerization (or respectively copolymerization, together throughout the text and the claims: "polymerization"), advantageously in standard inverse emulsion, of at least one cationic monomer and optionally other non-monomers. ionic or, preferably, anionic, in the presence of a crosslinking agent. They must have a global cationic charge.
  • water-insoluble monomers such as acrylic, allylic or vinyl monomers having a hydrophobic group.
  • these monomers will be used in very small amounts, less than 20 mole%, preferably less than 10 mole%, and they will be chosen preferentially from the group comprising acrylamide derivatives such as N-alkylacrylamide by for example N-tert-butylacrylamide, octylacrylamide and N, N-dialkylacrylamides such as N, N-dihexylacrylamide ... acrylic acid derivatives such as alkyl acrylates and methacrylates.
  • acrylamide derivatives such as N-alkylacrylamide by for example N-tert-butylacrylamide, octylacrylamide and N, N-dialkylacrylamides such as N, N-dihexylacrylamide ... acrylic acid derivatives such as alkyl acrylates and methacrylates.
  • crosslinkers methylene bisacrylamide (MBA), ethylene glycol di-acrylate, polyethylene glycol dimethacrylate, diacrylamide, cyanomethylacrylate, vinyloxyethylacrylate or methacrylate, triallylamine, formaldehyde, glyoxal, glycidyl ether compounds such as ethylene glycol diglycidyl ether, or epoxides and their derivatives or any other means well known to those skilled in the art for crosslinking.
  • MCA methylene bisacrylamide
  • ethylene glycol di-acrylate polyethylene glycol dimethacrylate
  • diacrylamide diacrylamide
  • cyanomethylacrylate vinyloxyethylacrylate or methacrylate
  • triallylamine formaldehyde
  • glyoxal glycidyl ether compounds
  • glycidyl ether compounds such as ethylene glycol diglycidyl ether, or epoxides and their derivatives or any other means well known
  • the dual retention agent is introduced into the suspension, very preferably in a proportion of 30 g / t to 1000 g / t of active substance (polymer) relative to the dry weight of the fibrous suspension, preferably 150 g / t at 500g / t.
  • the polymer can be used either in the form of a dispersion, dissolved or "inverted” in water, or in the form of a solution in the water of the powder obtained from said dispersion.
  • the industrial solution of the dual retention agents and dewatering according to the invention namely without strong shear, is carried out by simple stirring with standard preparation units (dissolution) using a stirring order of 100 revolutions / min which represents a very weak shear, contrary to the mode of preparation required in the prior art for these same polymers (eg: EP1086276 ).
  • a coagulant is added to the fibrous suspension, prior to the addition of the main retention agent.
  • this type of product makes it possible to improve all the more the performance in retention at dosages (in active form) of 0.01 to 10 kg / t and preferably between 0. , 03 and 3 kg / t.
  • coagulants chosen from the group comprising inorganic coagulants such as polyaluminium chloride (PAC), alumina sulphate, aluminum polychlorosulphate ..., or coagulants including - polymers based on diallyldimethylammonium chloride (DADMAC), - polyethyleneimine, - quaternary polyamines manufactured by condensation of a primary or secondary amine on epichlorohydrin, polymers having functions of vinylamine type or dicyandiamide resins ...
  • DADMAC diallyldimethylammonium chloride
  • the cationicity or density of cationic charges represents the amount of "accessible" fillers carried by 1 g of polymer. This property is measured by colloidal titration with an anionic polymer in the presence of a colored indicator sensitive to the ionicity of the excess polymer.
  • the theoretical cationicity value reflects the cationicity actually present in the polymer. It is therefore not affected by the structure of the polymer. It can be measured by conventional assay of counterions of cationic monomers. In the examples below, the theoretical cationicity is measured by simple determination of chloride ions (argentimetric titration with silver nitrate).
  • tertiary anionic agents used during the various tests are: Tertiary agents Type Form Last name Society BI bentonite Powder Accoform BI Amcol NP780 Silica Liquid NP780 EKA M100 Organic Emulsion Telioform M100 Ciba
  • the paste used is diluted to a consistency of 0.5%. 2.5 g of pulp are taken, ie 500 g of 0.5% pulp. A volume of 500 ml of this diluted paste is introduced into the "Britt Jar" and the sequence is started.
  • test numbers comprising a * correspond to the different retention systems covered by the invention.
  • Tests 1 to 3 and 4 to 6 are identical to Tests 1 to 3 and 4 to 6:
  • test No. 7 show that the method of the invention (test No. 7) not only significantly improves the retention of charges (from 51.9% to 67.9%) and the overall retention (from 80, 6% to 85.6%), but also the dripping (from 442ml to 516ml), and this without damaging the formation.
  • the use of the main retention agent and the mixed dual retention agent provides a gain in overall retention performance of more than 3 points (/ at test # 0) and also and especially a gain of 9 points in retention of loads as well as a drainage more powerful.
  • INDUSTRIAL BENEFITS related to the processes of the invention: use of a single commercial product in the form of a mixture (ie: a single preparation unit and a single injection unit) with improved performances for the machine (in particular as regards the machine speed).
  • a separate addition of the mixture of the invention shows a slight improvement over a single point of addition but with here a conservation of the quality of formation of the sheet.
  • the main and dual retention agent mixture according to the invention proves to be very competitive in terms of performance as well as in terms of cost compared with a conventional retention system of Hydrocol type.
  • Test 1 represents the usual framework for using a retention system with bentonite (Hydrocol type).
  • Tests 21, 29 and 34 are variants of the invention which show very significant performance improvements.
  • test No. 7 the cross-linked cationic (co) polymer / cationic (co) polymer retention system of the invention (test No. 7) can be substituted for the conventionally used cationic polymer / silica system (test No. 4), while at the same time providing better performance in terms of retention and dewatering.
  • the cationic (co) polymers and their injection points presented by the invention make it possible to raise the level of performance of a silica-type system to a level much greater than a Hydrocol-type bentonite system, in overall retention of fillers. as well as draining.
  • INDUSTRIAL BENEFITS related to the processes of the invention: besides the gain in overall performance, possibility for the paper mill operator of silica by an extremely simple equipment (pump) on high speed machines in place of the necessary heavy equipment to the implementation of bentonite.
  • the inorganic particle that has been used is bentonite, however this choice is in no way restrictive.
  • the coagulant used is the PAC, but this choice is not at all restrictive

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  • Paper (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Claims (14)

  1. Verfahren zur Herstellung von Papier, Pappe o. dgl., das darin besteht, der Faserstoffsuspension getrennt oder als Gemisch zuzusetzen:
    - mindestens ein Hauptretentionsmittel, das aus einem kationischen (Co)polymer besteht,
    - und mindestens ein duales Retentionsmittel, das aus einem vernetzten kationischen (Co)polymer besteht, das in Form einer Suspension erhalten wird und vor seinem Einbringen in die Faserstoffsuspension unter leichtem Rühren aufgelöst wird, wobei das vernetzte kationische (Co)polymer aufweist - eine Viskosität UL, die zwischen 1,3 und 2,7 cps, vorzugsweise zwischen 1,5 und 2,4 cps beträgt, und - ein offensichtliches Kationizitätsverhältnis, das zwischen 25 und 75% beträgt,
    und optional vor oder nach dem dualen Retentionsmittel oder dem Hauptretentionsmittel ein tertiäres oder mehrere tertiäre Retentionsmittel, das bzw. die aus der Gruppe ausgewählt ist bzw. sind, die Mineralpartikel und anionische Ladungen tragende organische Polymere umfasst.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das duale Retentionsmittel unter Rühren aufgelöst wird, das zwischen 50 und 500 Umdrehungen/Minute, vorzugsweise zwischen 70 und 200 Umdrehungen/Minute liegt.
  3. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das duale Retentionsmittel durch Polymerisation oder Copolymerisation mindestens eines kationischen Monomers und gegebenenfalls anderer nicht ionischer Monomere im Beisein mindestens eines Vernetzungsmittels in einer Standardumkehremulsion erhalten wird.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass:
    a) die kationischen Monomere aus der Gruppe ausgewählt sind, die Dimethylaminoethylacrylat (ADAME) und/oder Dimethylaminoethylmethacrylat (MADAME), quaternisiert oder in Salz überführt, Dimethyldiallylammoniumchlorid (DADMAC), Acrylamidopropyltrimethylammoniumchlorid (APTAC) und/oder Methacrylamidopropy-Itrimethylammoniumchlorid (MAPTAC) umfasst;
    b) die nicht ionischen Monomere aus der Gruppe ausgewählt sind, die Acrylamid, Methacrylamid, N-Isopropylacrylamid, N-N-Dimethylacrylamid, N-Vinylformamid, N-Vinylacetamid, N-Vinylpyrrolidon, Vinylacetat, Acrylatester, Allylalkohol und/oder ethylenische ungesättigte anionische Monomere umfasst, die eine Carboxylfunktion besitzen, eine Sulfonsäurefunktion besitzen;
    c) das Vernetzungsmittel aus der Gruppe ausgewählt ist, die Methylenbisacrylamid (MBA), Ethylenglykoldiacrylat, Polyethylenglykoldimethacrylat, Diacrylamid, Cyanomethacrylat, Vinyloxyethylacrylat oder -methacrylat, Triallylamin, Formaldehyd, Glyoxal, Verbindungen der Art Glycidylether wie Ethylenglykoldiglycidylether oder Epoxide und deren Derivate umfasst.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das duale Retentionsmittel in die Suspension in einem Anteil von 30 g/t bis 1000 g/t auf das Gewicht des Wirkstoffs (Polymer) bezogen in Bezug auf das Trockengewicht der Faserstoffsuspension, vorzugsweise von 150 g/t bis 500 g/t eingebracht wird.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Hauptretentionsmittel ein kationisches (Co)polymer:
    - mindestens eines nicht ionischen Monomers ist, das aus der Gruppe ausgewählt ist, die Acrylamid und/oder Methacrylamid und /oder deren substituierte Derivate und/oder N-Vinylformamid und/oder N-Vinylacetamid und/oder N-Vinylpyrrolidon, vorteilhafter Weise Acrylamid umfasst,
    - und vorzugsweise mindestens eines ethylenisch ungesättigten kationischen Monomers ist, das aus der Gruppe ausgewählt ist, welche die Monomere der Art Dialkylaminoalkyl(meth)acrylat, Dialkylaminoalkyl(meth)acrylamid, Diallylamin, Methyldiallylamin und deren quaternären Ammoniumsalze oder Säuresalze umfasst.
  7. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Hauptretentionsmittel ein kationisches (Co)polymer ist, das erhalten wird:
    - durch eine Abbaureaktion, genannt Hofmann-Abbaureaktion, an (Co)polymeren auf Acrylamidbasis;
    - durch eine Hydrolysereaktion an einem N-Vinylformamid- und/oder N-Vinylacetamid-(Co)polymer;
    - oder durch eine Reaktion, Mannich-Reaktion genannt, an Polymeren auf Acrylamidbasis.
  8. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Menge des in die auszuflockende Suspension eingebrachten Hauptretentionsmittels zwischen dreißig und tausend Gramm aktiven Polymers pro Tonne Trockenbrei (30 und 1000 g/t) beträgt.
  9. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Hauptretentionsmittel und das duale Retentionsmittel sich in Form eines Gemischs darstellen.
  10. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das duale Retentionsmittel nach einem Druckreiniger eingebracht wird.
  11. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Mineralpartikel aus der Gruppe ausgewählt sind, die Siliciumdioxidderivate, die aus der Gruppe ausgewählt sind, die Bentonite umfasst, die von Hectoriten, Smectiten, Montmorilloniten, Nontroniten, Saponiten, Sauconiten, Hormiten, Attapulgiten und Sepioliten stammen, Derivate der Art Silikate, Aluminosilikate oder Borosilikate, Zeolite, Kaolinite, modifizierte oder nicht modifizierte kolloidale Kieselgele oder ausgefälltes Kieselgel umfasst.
  12. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mit tertiärem oder ohne tertiäres Mittel der Faserstoffsuspension allein oder im Gemisch vor der Zugabe des Hauptretentionsmittels ein Koagulans zugesetzt wird, das aus der Gruppe ausgewählt ist, die mineralische Koagulantien und organische Koagulantien, darunter - Polymere auf Basis von Diallyldimethylammoniumchlorid (DADMAC), - Polyethylenimin, - quaternäre Polyamine, die durch Kondensation eines primären oder sekundären Amins über Epichlorhydrin hergestellt werden, Polymere, die Funktionen der Art Vinylamin aufweisen, oder Harze der Art Dicyandiamid umfasst.
  13. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das duale Retentionsmittel eine Kationizität von unter 4 meq/g besitzt.
  14. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Hauptretentionsmittel ein kationisches Polymer natürlichen Ursprungs ist, das aus der Gruppe ausgewählt ist, die Stärke- oder Guargummiderivate umfasst.
EP09742222.4A 2008-04-10 2009-04-01 Verfahren zur herstellung von papier und karton Not-in-force EP2274477B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0852415A FR2929963B1 (fr) 2008-04-10 2008-04-10 Procede de fabrication de papier et carton
FR0853245A FR2929964B3 (fr) 2008-04-10 2008-05-19 Procede de fabrication de papier et carton
PCT/FR2009/050554 WO2009136024A2 (fr) 2008-04-10 2009-04-01 Procédé de fabrication de papier et carton

Publications (2)

Publication Number Publication Date
EP2274477A2 EP2274477A2 (de) 2011-01-19
EP2274477B1 true EP2274477B1 (de) 2014-01-22

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EP09742222.4A Not-in-force EP2274477B1 (de) 2008-04-10 2009-04-01 Verfahren zur herstellung von papier und karton

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US (1) US8343311B2 (de)
EP (1) EP2274477B1 (de)
CN (1) CN101999019B (de)
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KR101777888B1 (ko) * 2009-11-06 2017-09-12 솔레니스 테크놀러지스 케이맨, 엘.피. 종이 강도 개선을 위한 중합체 및 중합체 혼합물의 표면 적용
FR2963364B1 (fr) * 2010-08-02 2014-12-26 Snf Sas Procede de fabrication de papier et carton presentant des proprietes de retention et d'egouttage ameliorees.
CN101973653B (zh) * 2010-09-30 2012-07-04 南京大学 采用复合混凝法处理高浓度pam生产废水的方法
CN103608516B (zh) * 2011-06-20 2016-11-16 巴斯夫欧洲公司 生产纸和纸板
WO2012175528A1 (en) * 2011-06-20 2012-12-27 Basf Se Manufacture of paper and paperboard
CN104844773A (zh) * 2015-05-08 2015-08-19 陈子明 纸料矿物复合助剂的制备方法
CN106723287B (zh) * 2017-03-08 2018-12-04 湖北中烟工业有限责任公司 一种造纸法再造烟叶助留助滤剂的制备方法
US11535985B2 (en) * 2019-07-01 2022-12-27 Kemira Oyj Method for manufacture of paper or board and paper or board obtained by the method
CN113248651B (zh) * 2021-07-12 2021-10-01 山东诺尔生物科技有限公司 一种造纸助留剂及其制备方法和应用
CN113321771B (zh) * 2021-08-03 2021-10-08 山东诺尔生物科技有限公司 一种支化型水包水助剂及其制备方法和应用
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WO2023052683A1 (en) * 2021-09-29 2023-04-06 Kemira Oyj Use of a cationic copolymer in a manufacture of paper, board, tissue or the like
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FR2929963B1 (fr) 2010-04-23
WO2009136024A3 (fr) 2009-12-30
CN101999019A (zh) 2011-03-30
EP2274477A2 (de) 2011-01-19
FR2929964B3 (fr) 2010-08-13
WO2009136024A2 (fr) 2009-11-12
FR2929963A1 (fr) 2009-10-16
CN101999019B (zh) 2013-01-30
FR2929964A1 (fr) 2009-10-16
US20090277597A1 (en) 2009-11-12
US8343311B2 (en) 2013-01-01

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