WO1998029603A1 - Verfahren zur herstellung von papier - Google Patents
Verfahren zur herstellung von papier Download PDFInfo
- Publication number
- WO1998029603A1 WO1998029603A1 PCT/EP1997/006857 EP9706857W WO9829603A1 WO 1998029603 A1 WO1998029603 A1 WO 1998029603A1 EP 9706857 W EP9706857 W EP 9706857W WO 9829603 A1 WO9829603 A1 WO 9829603A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cationic
- paper
- agents
- retention
- aids
- Prior art date
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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/24—Addition to the formed paper during paper manufacture
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/08—Regulating consistency
-
- 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
- D21H17/46—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
-
- 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 invention relates to a process for the production of paper by dewatering a paper stock containing process chemicals on a paper machine, in which a main stream of the paper stock and a dilution stream consisting of white water are fed to the paper machine wire via a headbox, the proportion of which in the total headbox feed 5 to 35 vol. % is.
- the paper machines usually only have a single stream for feeding the paper stock to the headbox.
- the paper stock contains process chemicals such as fixatives, drainage aids, retention aids and flocculants, and optionally sizing agents, dry and wet strength agents, dyes and fillers.
- the process chemicals can be metered into the paper stock by various methods described in the literature. For example, from Schublatt für Textilfabrikation, Volume 13, 493-502 (1979) the use of cationic polyelectrolytes in combination with bentonite is known, with bentonite first being added to the paper stock and then the cationic polyelectrolytes being added, the paper stock possibly being subjected to a shear rate can.
- EP-B-0 235 893 it is known to first add a synthetic cationic polymer with a molecular weight of more than 500,000 to a paper stock, so that flakes are formed which are then comminuted into microflakes in a subsequent shearing step. Then bentonite is then added and the paper stock containing the processing aids is dewatered.
- two different water-soluble, cationic polymers are added to the paper stock in succession.
- a low-molecular cationic polymer is first metered in as a fixative.
- the object of the invention is to provide a process for the production of paper, an increase in the retention, in particular the fiber and fine material retention and, if appropriate, the filler retention being achieved compared to the known processes, and at the same time obtaining papers with a uniform formation transverse profile .
- the object is achieved according to the invention with a process for the production of paper by dewatering a process chemical and optionally filler-containing paper stock on a paper machine, in which a main stream of the paper stock and a dilution stream consisting of white water, the proportion of which in the total headbox feed, are fed to the paper machine screen via a headbox 5 to 35 vol .-% is, if one doses at least 5 wt .-% of the process chemicals in the dilution stream.
- the papers produced in this way have a uniform formation cross profile and surprisingly contain a very good qualitative bond between the fine and fillers to the long fiber material, so that these papers practically do not dust or to a non-disturbing extent.
- the contaminants mostly contained in the white water such as wood constituents, sticky contaminants from the paper line in recycled fibers or when using waste paper are almost quantitatively fixed to the paper stock and thereby rendered harmless for the paper manufacturing process and later paper recycling.
- a headbox with a main and a dilution stream which is fed to the individual sections of the headbox via metering valves in order to set the stock density cross profile.
- the dilution stream consists of white water. It is well known that white water contains fine substances and fiber fragments from the cellulose or wood pulp fibers used in paper production. These fines are usually difficult to get out of the cycle. If papers containing filler are produced, the white water contains at least twice as much filler as the main stream, based on the fiber.
- the proportion of the dilution stream consisting of the white water in the total headbox feed is, for example, 5 to 35% by volume, preferably 7 to 15% by volume.
- Suitable process chemicals are, for example, fixing agents, drainage aids, retention aids, flocculants alone, in a mixture with one another or in combination with bentonite and / or colloidal silica, dyes, bulk sizing agents, dry setting agents and / or wet setting agents.
- Polymers such as polymers containing vinylamine units, for example, can simultaneously act as fixing agents, drainage aids, retention aids and as a flocculant, and as dry and wet strength agents.
- the process chemicals are therefore added to the paper stock in the usual manner and in the same way as in the known paper production, so that reference can be made in this regard to the known prior art for paper production.
- cationic fixatives are used to eliminate contaminants that interfere with the effectiveness of retention aids, wet and dry strength agents and bulk sizing agents. Such contaminants are, for example, lignosulfonates or Hu acids.
- Cationic fixing agents which can be used are, for example, polyethyleneimines, polymers containing vinylamine units and / or poly (diallyldimethylammonium chlorides) with a molecular weight M w of 10,000 to 2,000,000 each.
- Polymers containing vinylamine units are known to be prepared by homo- or copolymerization of N-vinylformamide and subsequent hydrolysis of the polymers with acids or bases, cf. EP-B-0 071 050 and EP-B-0 216 387.
- Process chemicals which can be used are, for example, cationic fixatives, cationic drainage aids, cationic retention agents and cationic flocculants, alone or in
- Cationic polyacrylamides with a high molecular weight for example with molecular weights M w of at least 4000000, are particularly suitable as retention and flocculants.
- the high molecular weight cationic polyacrylamides are produced by polymerizing acrylamide with cationic monomers.
- Suitable cationic monomers are, for example, the esters of ethylenically unsaturated C 3 to C 5 carboxylic acids with amino alcohols, such as dimethylaminoethyl acrylate, diethylaminoethyl acrylate, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate and di-n-propylaminoethyl acrylate.
- Suitable cationic monomers that can be copolymerized with acrylamide are N-vinylimidazole, N-vinylimidazoline and basic acrylamides such as dimethylaminoethylacrylamide.
- the basic monomers can be used in the form of the free bases, as salts or in quaternized form in the copolymerization.
- the cationic polyacrylamides contain, for example, 5 to 40, preferably 10 to 40% by weight of cationic monomers in polymerized form.
- the molecular weights M w of the cationic polyacrylamides are at least 4,000,000 and in most cases are above 5,000,000, for example in the range from 5,000,000 to 1,500,000.
- anionic polyacrylamides which contain, for example, copolymerized acrylic acid or methacrylic acid, and amphoteric polyacrylamides as drainage aids, retention aids and flocculants.
- Cationic, nonionic, amphoteric or anionic polymers, which are used as drainage aids, retention aids and flocculants have an improved effectiveness, for example in combination with bentonite and / or colloidal silica. This is particularly the case if a cationic fixative is also used. This is illustrated by the prior art specified in the introduction to the description.
- Process auxiliaries which are also used are, for example, water-soluble polymers which are selected from polyethylene iines, reaction products of polyethyleneimines with at least bifunctional crosslinkers, anionic polyacrylamides, cationic polyacrylamides, amphoteric polyacrylamides, reaction products from polyamidoamines grafted with ethyleneimine and with at least two functional groups having crosslinkers - nylformamide units and / or vinylamine unit-containing polymers and poly (diallyldimethylammonium halides).
- polyethyleneimines are produced, for example, by polymerizing ethyleneimine in an aqueous medium in the presence of traces of acids or compounds which split off acids.
- water-soluble polymeric reaction products containing amino groups which are obtainable by reacting Michael addition products of polyalkylene polyamines, polyamidoamines, polyamidoamines grafted with ethyleneimine and mixtures of the compounds mentioned and monoethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles with at least bifunctional crosslinkers.
- reaction products are, for example, from the WO-A-94/184743 known.
- halogen-free crosslinkers such as glycidyl ethers of polyalkylene glycols, are particularly suitable for their preparation.
- the monobasic carboxylic acids have, for example, 1 to 28, preferably 8 to 18, carbon atoms and can optionally contain one or more ethylenic double bonds, e.g. Oleic acid or linolenic acid.
- the molar masses of the polyethyleneimines in question can be up to 2 million and are preferably in the range from 1000 to 50,000.
- the polyethyleneimines are partially amidated with monobasic carboxylic acids, so that, for example, 0.1 to 90, preferably 1 up to 50% of the amidatable nitrogen atoms in the polyethyleneimines is present as an amide group.
- Suitable crosslinkers containing at least two functional double bonds are mentioned above. Halogen-free crosslinkers are preferably used.
- crosslinking agents for example, 0.001 to 10, preferably 0.01 to 3 parts by weight of at least one crosslinking agent are used per 1 part by weight of a compound containing amino groups.
- polyethyleneimines are quaternized polyethyleneimines. Both homopolymers of ethyleneimine and polymers which contain, for example, ethyleneimine grafted on are suitable for this purpose.
- the polyethyleneimines obtainable in this way have a broad molar mass distribution and molar masses of, for example, 129 to 2-10 6 , preferably 430 to MO 6 .
- the polyethyleneimines and the quaternized polyethyleneimines can optionally be reacted with a crosslinker containing at least two functional groups.
- the quaternization of the polyethyleneimines can, for example, with alkyl halides such as methyl chloride, ethyl chloride, hexyl chloride, benzyl chloride or lauryl chloride and, for example, with dimethyl sulfate.
- alkyl halides such as methyl chloride, ethyl chloride, hexyl chloride, benzyl chloride or lauryl chloride and, for example, with dimethyl sulfate.
- Other suitable polymers containing amino groups are phosphonomethylated polyethyleneimines and alkoxylated polyethyleneimines, which are obtainable, for example, by reacting polyethyleneimine with ethylene oxide and / or propylene oxide.
- the phosphonomethylated and the alkoxylated polyethyleneimines can optionally be reacted with a crosslinker containing at least two functional groups.
- the alkoxylated polyethyleneimines contain 1 to 100, preferably 2 to 20, alkylene oxide units per NH group.
- the molecular weight of the polyethyleneimines can be up to 2 million.
- Polyethyleneimines with molar masses of 1000 to 50,000 are preferably used for the alkoxylation.
- Other suitable water-soluble retention aids or fixatives are reaction products of
- Polyethyleneimines with diketenes e.g. of polyethyleneimines with a molecular weight of 1,000 to 50,000 with distearyl diketene. Products of this type can also, if appropriate, be reacted with a crosslinker containing at least two functional groups.
- Reaction products made from ethyleneimine-grafted polyamidoamines with at least two functional groups containing crosslinkers are known from DE-B-2 434 816.
- Suitable crosslinkers are, for example, ⁇ , ⁇ -bis (chlorohydrin) ethers of polyalkylene oxides having 1 to 100 alkylene oxide units.
- the resulting resins - measured at 20 ° C in 20 wt .-% aqueous solution - have a viscosity of more than 300 mPas.
- Other process chemicals for papermaking are reaction products of polyalkylene polyamines, dimethylamine, diethylamine or ethylenediamine with epichlorohydrin or dichloroethane or other at least bifunctional crosslinkers. Reaction products of this type are known, for example, from EP-A-0 411 400 and DE-A-2 162 567.
- the preferred drainage aids, retention aids and flocculants are water-soluble cationic polyacrylamides with an average molecular weight M w of at least 500,000 and / or the water-soluble reaction products which can be obtained by reacting polyamidoamines grafted with ethyleneimine with at least bifunctional crosslinking agents .
- Another preferred retention system consists of combinations of cationic synthetic polymers and / or cationic starch with finely divided organic or inorganic solids. Such systems are specified in the prior art described at the outset and in references EP-B-0 041 056,
- finely divided inorganic solids include such as bentonite, colloidal silica, microcrystalline talc, precipitated calcium carbonate, precipitated gypsum and / or calcined clay.
- the amount of finely divided solids is, for example, 0.01 to 2.0% by weight, based on dry paper. It is particularly preferred to use the above-mentioned retention agent systems composed of cationic synthetic retention agents with / and / or cationic starch in combination with bentonite, which can optionally be activated in an alkaline or acidic manner or colloidal silica.
- Bentonite and silica, as well as the other finely divided inorganic substances that are considered, are preferably used in amounts of 0.02 to 0.5% by weight, based on dry paper.
- the inorganic, finely divided solids for example, have an inner surface area of 5 to 1000 m 2 / g (determined according to BET with nitrogen).
- finely divided organic particles can be considered, for example crosslinked polyacrylic acid or modified lignin sulfonate.
- the finely divided organic solids also increase retention.
- Such a system is known for example from WO-A-96/26220 for the combination of cationically modified cellulose particles with polyacrylamides.
- the other retention and flocculation agents mentioned above can also be combined with these cellulose particles to form an effective retention agent system.
- the particle size of the inorganic and organic solids in the application, ie when introduced into the aqueous medium, is in the range, for example, from 10 nm to 10 ⁇ .
- a procedure is particularly preferred in which a cationic fixing agent is additionally used in the amounts customary for this.
- All paper grades, cardboard and cardboard can be produced by the process according to the invention, for example papers for newspaper printing, so-called medium-fine writing and printing papers, gravure printing papers and also lightweight coating base papers.
- wood pulp, thermo-mechanical material (TMP), chemo-thermomechanical material (CTMP), pressure grinding (PGW) and sulphite and sulphate pulp can be used.
- Pulp and wood pulp can also be used as raw materials for the production of the pulp.
- these materials are further processed into paper in a more or less moist form without prior thickening or drying. Due to the impurities that have not been completely removed from them, these fiber materials still contain substances which severely disrupt the normal paper production process.
- pulps containing interfering substances can also be easily processed in the method according to the invention.
- filler-free and filler-containing papers can be produced by the process according to the invention.
- the filler content in paper can be up to a maximum of 40% by weight and is preferably in the range from 5 to 25% by weight.
- Suitable fillers are, for example, clay, kaolin, native and precipitated chalk, titanium dioxide, talc, calcium sulfate, barium sulfate, aluminum oxide, satin white or mixtures of the fillers mentioned.
- the consistency of the pulp is, for example, 0.1 to
- At least one cationic polymer is first added as a fixing agent to the fiber slurry and then at least one cationic polymer which acts as a retention agent is added.
- This addition causes a strong flocculation of the paper stock in at least one subsequent shear stage, which, for. B. in one or more cleaning, mixing and pumping stages or a pulper, classifier or even in a refiner or sieve through which the pre-flocked paper stock is passed, the so-called "hard giant flakes" present in the flocked system are destroyed .
- Bentonite, colloidal silica or calcined clay are preferably added after the shear stage, so-called soft micro flakes are formed.
- the amounts of bentonite, colloidal silica or calcined clay are 0.01 to 2, preferably 0.02 to 0.5% by weight, based on dry paper stock.
- Bentonite is a layered aluminum silicate based on montmorillonite that occurs naturally. It is mostly used after the calcium ions have been replaced by sodium ions.
- bentonite in an aqueous slurry is treated with sodium hydroxide solution. This makes it fully swellable in water and forms highly viscous thixotropic gel structures.
- the platelet diameter of the bentonite is, for example, 1 to 2 ⁇ , the platelet thickness is approximately 10 ⁇ .
- the bentonite has a specific surface area of 60 to 800 m 2 / g. Due to the large inner surface and the outwardly negative excess charges on the surface, such inorganic polyanions can be used for adsorptive collection effects of cationically reloaded and sheared paper materials. This results in optimal flocculation in the paper stock.
- the process chemicals are metered into the dilution stream.
- retention aid systems made of cationic polymers and fine Partial solids
- all of the cationic polymers can be added completely to the main stream and the finely divided solids can only be added to the dilution stream consisting of white water.
- a method of working in which defoamers are introduced into the dilution stream has proven particularly useful.
- Dyes, mass sizing agents (in particular alkyldiketene dispersions, resin glue, alkenylsuccinimide dispersions or glue-acting polymer dispersions) and solidifying agents (e.g. polyamidoamines crosslinked with epichlorohydrin) can optionally only be metered into the headbox via the dilution stream. Preferably 5 to 40% by weight of the process chemicals are introduced into the dilution stream.
- Example 3 a polyamidoamine is prepared by condensing adipic acid with diethylenetriamine and then grafted in aqueous solution with sufficient ethyleneimine that the polyamidoamine per basic nitrogen grouping is 6.7 ethyleneimine. Contains units grafted on. A 10% aqueous solution of the polymer has a viscosity of 22 mPas.
- the polyamidoamine grafted with ethyleneimine is then crosslinked by reaction with a bis-glycidyl ether of a polyethylene glycol having an average molecular weight of 2000 as described in Example 3 of DE-B-2 434 816.
- a polymer containing ethyleneimine units and having a viscosity of 120 mPas (determined in a 10% strength aqueous solution at 20 ° C. and pH 10) is obtained.
- the concentration of the aqueous solution is 12.5%
- Cationic copolymer of acrylamide and dimethylaminoethyl acrylate which is quaternized with methyl chloride with a content 5 of acrylamide of 84 mol% and a molar mass of approx. 10 million.
- the charge density of the copolymer is 1.7 meq / g at pH 4.5 .
- Cross-linked polyethyleneimine with an average molecular weight of 1 million and a charge density of 14.7 mEq / g (measured at pH 4.5).
- SC paper supercalendered paper
- SC paper was based on a composition of materials comprising 35 parts of ground wood, 17 parts of deinked waste paper, 19 parts of long-fiber sulfate pulp,
- 25 contained 25 parts scrap and 25 parts clay.
- This paper stock was processed on an SC paper machine which was equipped with a module jet headbox from Voith-Sulzer. 0.29% of polymer 1 was metered into the main stream of paper stock before the vertical sorter and 0.024% after the vertical sorter
- a dilution stream of white water was fed to the paper machine sieve via the module jet headbox, to which 0.03% polymer 1, based on dry paper, was metered.
- the volume ratio of the main stream to the dilution stream was 9: 1.
- the ash retention was 29.5%, the fiber and fine
- the paper contains the fine and fillers in a very well bound form and has a very good formation cross profile and an excellent ash distribution.
- Example 1 was repeated with the exception that the paper stock described above was fed and dewatered from the SC paper machine in a single stream without a module jet system using the process auxiliaries indicated.
- the retention of ashes was 27.8%, the retention of fibers and fines 60.3%.
- Example 2
- Example 1 was repeated with the only exception that 0.38% of polymer 4 was now metered into the dilution stream instead of polymer 1. Ash retention was 33.6%, fiber and fines retention 63.6%. The paper has an excellent uniform formation cross profile.
- a composition of 40 parts of wood pulp, 40 parts of bleached pine sulfate pulp and 20 parts of coated scrap was processed into paper on a paper machine for wood-containing coating base papers.
- the paper machine was equipped with a Dilution Head Box from Valmet. With the help of this device, a dilution stream consisting of white water could be fed to the headbox.
- the ratio of the main stream to the dilution stream was 9: 1.
- 0.05% of polymer 2 based on dry paper, was metered into the main stream upstream of the vertical sorter.
- 0.03% of polymer 3 based on dry paper, and 0.1% bentonite, also based on dry paper, were added to the dilution stream before the vertical sorter.
- Ash retention was 30.5%, fiber and fines retention 69.5%.
- the paper had a uniform formation cross profile.
- Example 3 was then repeated without a dilution head box.
- the ash retention was 26.8% and the fiber and fines retention 64.6%.
- Example 3 was repeated with the exceptions that, based in each case on dry paper, 0.02% polymer 2 was metered into the dilution stream of the dilution head box before the vertical sorter and 0.1% bentonite after the vertical sorter and 0.04 into the main stream % Polymer 2 before passing through the vertical sorter. Ash retention was 30.1%, fiber and fines retention 69.7%. The paper had an excellent ash distribution and an even formation cross profile. Comparative Example 3
- Example 4 was repeated without dilution head box dosing.
- the ash retention was 25.7% and the fiber and fines retention 63.7%.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59702299T DE59702299D1 (de) | 1996-12-27 | 1997-12-09 | Verfahren zur herstellung von papier |
JP52957198A JP2001508137A (ja) | 1996-12-27 | 1997-12-09 | 紙を製造する方法 |
AT97952902T ATE195985T1 (de) | 1996-12-27 | 1997-12-09 | Verfahren zur herstellung von papier |
US09/147,582 US6083348A (en) | 1996-12-27 | 1997-12-09 | Method for producing paper |
EP97952902A EP0948677B1 (de) | 1996-12-27 | 1997-12-09 | Verfahren zur herstellung von papier |
CA002256431A CA2256431C (en) | 1996-12-27 | 1997-12-09 | Production of paper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19654390.8 | 1996-12-27 | ||
DE19654390A DE19654390A1 (de) | 1996-12-27 | 1996-12-27 | Verfahren zur Herstellung von Papier |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998029603A1 true WO1998029603A1 (de) | 1998-07-09 |
Family
ID=7816237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/006857 WO1998029603A1 (de) | 1996-12-27 | 1997-12-09 | Verfahren zur herstellung von papier |
Country Status (9)
Country | Link |
---|---|
US (1) | US6083348A (de) |
EP (1) | EP0948677B1 (de) |
JP (1) | JP2001508137A (de) |
AT (1) | ATE195985T1 (de) |
CA (1) | CA2256431C (de) |
DE (2) | DE19654390A1 (de) |
ES (1) | ES2151296T3 (de) |
PT (1) | PT948677E (de) |
WO (1) | WO1998029603A1 (de) |
Families Citing this family (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6346169B1 (en) | 1998-01-13 | 2002-02-12 | Kao Corporation | Paper bulking promoter |
US6918995B2 (en) * | 2000-08-07 | 2005-07-19 | Akzo Nobel N.V. | Process for the production of paper |
US6673205B2 (en) * | 2001-05-10 | 2004-01-06 | Fort James Corporation | Use of hydrophobically modified polyaminamides with polyethylene glycol esters in paper products |
EP1399623B1 (de) * | 2001-06-11 | 2015-01-07 | Basf Se | Nassfestausrüstungsmittel für papier |
US6855672B2 (en) * | 2001-11-07 | 2005-02-15 | Baker Hughes Incorporated | Copolymers useful for gelling acids |
WO2003083211A1 (fr) * | 2002-03-28 | 2003-10-09 | Nippon Paper Industries, Co., Ltd. | Papier bouffant |
MY140933A (en) * | 2002-04-08 | 2010-02-12 | Ciba Spec Chem Water Treat Ltd | White pitch deposit treatment |
DE10237911A1 (de) * | 2002-08-14 | 2004-02-26 | Basf Ag | Verwendung von Vinylamineinheiten enthaltenden Polymeren als Promoter für die Alkyldiketenleimung |
US20040084162A1 (en) * | 2002-11-06 | 2004-05-06 | Shannon Thomas Gerard | Low slough tissue products and method for making same |
US7258764B2 (en) * | 2002-12-23 | 2007-08-21 | Sca Hygiene Products Gmbh | Soft and strong webs from highly refined cellulosic fibres |
CN1784525A (zh) * | 2003-05-09 | 2006-06-07 | 阿克佐诺贝尔公司 | 一种造纸方法 |
EP1626866A1 (de) * | 2003-05-16 | 2006-02-22 | Basf Aktiengesellschaft | Verpackungsmaterial aus einem mindestens zweischichtigen verbundmaterial zur herstellung von beh ltern f r die verpackun gen von fl ssigkeiten |
DE10333524A1 (de) * | 2003-07-23 | 2005-02-17 | Voith Paper Patent Gmbh | Verfahren und Vorrichtung zur Herstellung einer Faserstoffbahn, insbesondere SC-A- oder SC-B-Papierbahn |
WO2005042843A1 (en) * | 2003-10-24 | 2005-05-12 | National Gypsum Properties, Llc | Process for making abrasion resistant paper and paper and paper products made by the process |
JP2005171411A (ja) * | 2003-12-10 | 2005-06-30 | Seiko Pmc Corp | 填料含有紙、及び填料含有紙の製造方法 |
US7641766B2 (en) * | 2004-01-26 | 2010-01-05 | Nalco Company | Method of using aldehyde-functionalized polymers to enhance paper machine dewatering |
DE102004013007A1 (de) * | 2004-03-16 | 2005-10-06 | Basf Ag | Verfahren zur Herstellung von Papier, Pappe und Karton |
US20050236123A1 (en) * | 2004-04-26 | 2005-10-27 | Mcnamara Bruce A | Retention and drainage in the manufacture of paper |
DE102004044379B4 (de) * | 2004-09-10 | 2008-01-10 | Basf Ag | Verfahren zur Herstellung von Papier, Pappe und Karton und Verwendung einer Retentionsmittelkombination |
DE102004056551A1 (de) * | 2004-11-23 | 2006-05-24 | Basf Ag | Verfahren zur Herstellung von Papier, Pappe und Karton mit hoher Trockenfestigkeit |
EP1828481B1 (de) * | 2004-12-17 | 2015-09-23 | Basf Se | Papiere mit hohem f]llstoffgehalt und hoher trockenfestigkeit |
US7955473B2 (en) * | 2004-12-22 | 2011-06-07 | Akzo Nobel N.V. | Process for the production of paper |
AU2011213761B2 (en) * | 2004-12-29 | 2012-07-12 | Solenis Technologies Cayman, L.P. | Improved retention and drainage in the manufacture of paper |
US8932433B2 (en) * | 2004-12-29 | 2015-01-13 | Solenis Technologies, L.P. | Retention and drainage in the manufacture of paper |
US8308902B2 (en) | 2004-12-29 | 2012-11-13 | Hercules Incorporated | Retention and drainage in the manufacture of paper |
US20060142431A1 (en) * | 2004-12-29 | 2006-06-29 | Sutman Frank J | Retention and drainage in the manufacture of paper |
US7718035B2 (en) * | 2005-03-15 | 2010-05-18 | Georgia-Pacific Consumer Products Lp | Phosphoric acid quenched creping adhesive |
US20060254464A1 (en) | 2005-05-16 | 2006-11-16 | Akzo Nobel N.V. | Process for the production of paper |
JP4891601B2 (ja) * | 2005-12-02 | 2012-03-07 | ハリマ化成株式会社 | 板紙の製造方法 |
PT1969183E (pt) | 2005-12-30 | 2015-03-06 | Akzo Nobel Nv | Processo para a produção de papel |
US8273216B2 (en) * | 2005-12-30 | 2012-09-25 | Akzo Nobel N.V. | Process for the production of paper |
JP4868282B2 (ja) * | 2006-09-15 | 2012-02-01 | 星光Pmc株式会社 | 汚れ防止方法 |
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 |
FI122734B (fi) * | 2007-05-21 | 2012-06-15 | Kemira Oyj | Prosessikemikaali käytettäväksi paperin tai kartongin valmistuksessa |
US8088250B2 (en) * | 2008-11-26 | 2012-01-03 | Nalco Company | Method of increasing filler content in papermaking |
US9752283B2 (en) | 2007-09-12 | 2017-09-05 | Ecolab Usa Inc. | Anionic preflocculation of fillers used in papermaking |
JP2009144272A (ja) * | 2007-12-12 | 2009-07-02 | Daio Paper Corp | 紙及び紙の製造方法 |
US9249240B2 (en) * | 2007-12-20 | 2016-02-02 | Basf Se | Graft polymers having oligoalkylenimine side chains, process for their preparation and their use |
US20100132522A1 (en) * | 2008-09-19 | 2010-06-03 | Peterson Michael E | Trimmer |
JP5289882B2 (ja) * | 2008-09-30 | 2013-09-11 | 日本製紙株式会社 | 紙の製造方法 |
DE102009001731A1 (de) * | 2009-03-23 | 2010-09-30 | Voith Patent Gmbh | Verfahren zur Einstellung eines Flächengewichtsquerprofils einer Faser- oder Vliesstoffbahn und Maschine zur Herstellung einer Faser- oder Vliesstoffbahn |
JP5570004B2 (ja) * | 2009-05-28 | 2014-08-13 | ハイモ株式会社 | 抄紙方法 |
WO2010145990A1 (de) * | 2009-06-16 | 2010-12-23 | Basf Se | Verfahren zur reduktion von ablagerungen in der trockenpartie bei der herstellung von papier, pappe und karton |
US8288502B2 (en) | 2009-12-18 | 2012-10-16 | Nalco Company | Aldehyde-functionalized polymers with enhanced stability |
PT2556191T (pt) * | 2010-04-07 | 2016-07-14 | Solenis Technologies Cayman Lp | Composições aquosas e estáveis de polivinilaminas com amido catiónico e sua utilidade para o fabrico de papel |
EP2580390B1 (de) * | 2010-06-11 | 2019-03-13 | Imerys Talc America, Inc. | Verfahren zur entfernung von verunreinigungen in der papierherstellung |
JP5961619B2 (ja) | 2010-10-29 | 2016-08-02 | バックマン・ラボラトリーズ・インターナショナル・インコーポレーテッドBuckman Laboratories International Incorporated | イオン性架橋ポリマー微粒子を用いて紙を作製する方法及び該方法により作製された製品 |
US8709207B2 (en) | 2010-11-02 | 2014-04-29 | Nalco Company | Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing |
US8840759B2 (en) | 2010-11-02 | 2014-09-23 | Ecolab Usa Inc. | Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing |
JP5900844B2 (ja) * | 2011-06-08 | 2016-04-06 | 丸住製紙株式会社 | 着色紙の製造方法及び着色紙 |
CA2918468A1 (en) * | 2013-08-09 | 2015-05-07 | Solenis Technologies Cayman, L.P. | Polyethylene oxide treatment for drainage agents and dry strength agents |
US9598819B2 (en) * | 2013-11-08 | 2017-03-21 | Solenis Technologies, L.P. | Surfactant based brown stock wash aid treatment for papermachine drainage and dry strength agents |
US9567708B2 (en) | 2014-01-16 | 2017-02-14 | Ecolab Usa Inc. | Wet end chemicals for dry end strength in paper |
US9702086B2 (en) | 2014-10-06 | 2017-07-11 | Ecolab Usa Inc. | Method of increasing paper strength using an amine containing polymer composition |
US9920482B2 (en) | 2014-10-06 | 2018-03-20 | Ecolab Usa Inc. | Method of increasing paper strength |
WO2017024230A1 (en) | 2015-08-06 | 2017-02-09 | Ecolab Usa Inc. | Aldehyde-functionalized polymers for paper strength and dewatering |
CN109072558A (zh) | 2016-05-13 | 2018-12-21 | 艺康美国股份有限公司 | 薄纸粉尘减少 |
RU2753445C2 (ru) * | 2016-09-16 | 2021-08-16 | Соленис Текнолоджиз, Л.П. | Повышенная эффективность обезвоживания в бумагоделательных системах с использованием микрофибриллированной целлюлозы |
EP3692207A4 (de) * | 2017-10-03 | 2021-07-21 | Solenis Technologies, L.P. | Erhöhung der chemischen effizienz bei der papierherstellung |
US11926966B2 (en) | 2017-10-03 | 2024-03-12 | Solenis Technologies, L.P. | Method of increasing efficiency of chemical additives in a papermaking system |
CN114150527B (zh) * | 2021-12-17 | 2023-04-25 | 杭州绿邦科技有限公司 | 一种助留助滤剂 |
CN116103954B (zh) * | 2023-02-23 | 2024-05-03 | 山东金蔡伦纸业有限公司 | 季铵化聚乙烯亚胺-木素纳米球助留助滤体系用于文化纸抄造 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2262906A1 (de) * | 1972-03-30 | 1973-10-11 | Sandoz Ag | Verfahren zur verbesserung der entwaesserungsbeschleunigenden eigenschaften von polyamidaminen, polyaetheraminen und polyaethyleniminen in cellulosefasersuspensionen |
EP0235893A1 (de) * | 1986-01-29 | 1987-09-09 | Ciba Specialty Chemicals Water Treatments Limited | Herstellung von Papier und Pappe |
US4795531A (en) * | 1987-09-22 | 1989-01-03 | Nalco Chemical Company | Method for dewatering paper |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3933966A (en) * | 1973-06-14 | 1976-01-20 | A. Alhstrom Osakeyhtio | Method and device for spraying fluid into a headbox |
DE3514554C3 (de) * | 1984-09-19 | 1998-01-08 | Escher Wyss Gmbh | Stoffauflauf-Vorrichtung für eine Papiermaschine und Verfahren zu deren Betrieb |
GB8711330D0 (en) * | 1987-05-14 | 1987-06-17 | Beloit Corp | Headbox |
DE3741603A1 (de) * | 1987-12-09 | 1989-06-22 | Voith Gmbh J M | Stoffauflauf fuer eine papiermaschine od.dgl. |
EP0335575B2 (de) * | 1988-03-28 | 2000-08-23 | Ciba Specialty Chemicals Water Treatments Limited | Herstellung von Papier und Pappe |
US4940512A (en) * | 1988-08-18 | 1990-07-10 | E. I. Du Pont De Nemours And Co.Ny | Cross-directional distribution of additives in synthetic papers |
US5147509A (en) * | 1990-06-25 | 1992-09-15 | Beloit Corporation | Headbox for a papermaking machine with distribution tubes |
US5196091A (en) * | 1991-10-29 | 1993-03-23 | Beloit Technologies, Inc. | Headbox apparatus with stock dilution conduits for basis weight control |
DE69429693T2 (de) * | 1993-07-01 | 2002-08-08 | Metso Paper Inc | Verfahren und Vorrichtung zur Regelung eines Stoffauflaufkasten |
US5560807A (en) * | 1995-03-29 | 1996-10-01 | Beloit Technologies, Inc. | Headbox additive injection system |
FI98938C (fi) * | 1996-06-20 | 1997-09-10 | Valmet Corp | Laitteisto laimennusvirtauksen yhdistämiseksi paperikoneen/kartonkikoneen jakotukista johdettuun massavirtaukseen |
-
1996
- 1996-12-27 DE DE19654390A patent/DE19654390A1/de not_active Withdrawn
-
1997
- 1997-12-09 WO PCT/EP1997/006857 patent/WO1998029603A1/de active IP Right Grant
- 1997-12-09 DE DE59702299T patent/DE59702299D1/de not_active Expired - Fee Related
- 1997-12-09 JP JP52957198A patent/JP2001508137A/ja not_active Withdrawn
- 1997-12-09 AT AT97952902T patent/ATE195985T1/de not_active IP Right Cessation
- 1997-12-09 US US09/147,582 patent/US6083348A/en not_active Expired - Fee Related
- 1997-12-09 PT PT97952902T patent/PT948677E/pt unknown
- 1997-12-09 CA CA002256431A patent/CA2256431C/en not_active Expired - Fee Related
- 1997-12-09 EP EP97952902A patent/EP0948677B1/de not_active Expired - Lifetime
- 1997-12-09 ES ES97952902T patent/ES2151296T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2262906A1 (de) * | 1972-03-30 | 1973-10-11 | Sandoz Ag | Verfahren zur verbesserung der entwaesserungsbeschleunigenden eigenschaften von polyamidaminen, polyaetheraminen und polyaethyleniminen in cellulosefasersuspensionen |
EP0235893A1 (de) * | 1986-01-29 | 1987-09-09 | Ciba Specialty Chemicals Water Treatments Limited | Herstellung von Papier und Pappe |
US4795531A (en) * | 1987-09-22 | 1989-01-03 | Nalco Chemical Company | Method for dewatering paper |
Non-Patent Citations (2)
Title |
---|
H.WURSTER UND K. WEITKÄMPER: "Stoffdichteabhängige Querprofilregelung - Betriebserfahrungen", DAS PAPIER, 1995, pages V99 - v105, XP002058726 * |
U.BEGEMANN: "Module Jet-erste Betriebserfahrungen mit dem neuen Stoffauflaufkonzept", WOCHENBLATT FÜR PAPIERFABRIKATION, vol. 122, pages 485 - 491, XP002058727 * |
Also Published As
Publication number | Publication date |
---|---|
CA2256431C (en) | 2005-11-08 |
US6083348A (en) | 2000-07-04 |
JP2001508137A (ja) | 2001-06-19 |
ATE195985T1 (de) | 2000-09-15 |
CA2256431A1 (en) | 1998-07-09 |
EP0948677A1 (de) | 1999-10-13 |
DE59702299D1 (de) | 2000-10-05 |
DE19654390A1 (de) | 1998-07-02 |
EP0948677B1 (de) | 2000-08-30 |
ES2151296T3 (es) | 2000-12-16 |
PT948677E (pt) | 2001-01-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0948677B1 (de) | Verfahren zur herstellung von papier | |
EP0223223B1 (de) | Verfahren zur Herstellung von Papier und Karton | |
EP0910701B1 (de) | Verfahren zur herstellung von papier und karton | |
EP1926855B1 (de) | Verfahren zur herstellung von papier, pappe und karton | |
EP1819875B1 (de) | Verfahren zur herstellung von papieren mit hohen flächengewichten | |
EP1792010B1 (de) | Verfahren zur herstellung von papier, pappe und karton | |
DE3644072A1 (de) | Beschwertes papier | |
DE20220979U1 (de) | Papierprodukt | |
EP2334871B1 (de) | Verfahren zur herstellung von papier, pappe und karton unter verwendung von endo-beta-1,4-glucanasen als entwässerungsmittel | |
EP1727938B1 (de) | Verfahren zur herstellung von papier, pappe und karton | |
EP0573458B1 (de) | Wässrige anschlämmungen von feinteiligen füllstoffen und ihre verwendung zur herstellung von füllstoffhaltigem papier | |
EP1831459B1 (de) | Verfahren zur herstellung von papier, pappe und karton | |
DE4436317A1 (de) | Verfahren zur Herstellung von Papier mit verbesserter Sieb-Entwässerung und Retention | |
DE10236252B4 (de) | Verfahren zur Herstellung von Papier, Pappe und Karton | |
WO1995010662A1 (de) | Wässrige pigmentanschlämmungen und ihre verwendung bei der herstellung von füllstoffhaltigem papier | |
DE20220980U1 (de) | Vorrichtung zur Herstellung von Papier, Pappe und Karton | |
DE20220981U1 (de) | Mikropartikelsystem zur Herstellung von Papier, Pappe und Karton | |
DE19929855A1 (de) | Verfahren zur Herstellung einer wässrigen Suspension zur Papierherstellung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1997952902 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2256431 Country of ref document: CA Ref country code: CA Ref document number: 2256431 Kind code of ref document: A Format of ref document f/p: F |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 09147582 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 1998 529571 Kind code of ref document: A Format of ref document f/p: F |
|
WWP | Wipo information: published in national office |
Ref document number: 1997952902 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1997952902 Country of ref document: EP |