EP0335575A2 - Herstellung von Papier und Pappe - Google Patents
Herstellung von Papier und Pappe Download PDFInfo
- Publication number
- EP0335575A2 EP0335575A2 EP89302842A EP89302842A EP0335575A2 EP 0335575 A2 EP0335575 A2 EP 0335575A2 EP 89302842 A EP89302842 A EP 89302842A EP 89302842 A EP89302842 A EP 89302842A EP 0335575 A2 EP0335575 A2 EP 0335575A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer
- molecular weight
- suspension
- cationic
- process according
- 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
- 239000011087 paperboard Substances 0.000 title claims abstract description 10
- 239000000123 paper Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title description 5
- 238000000034 method Methods 0.000 claims abstract description 40
- 230000008569 process Effects 0.000 claims abstract description 39
- 239000000725 suspension Substances 0.000 claims abstract description 25
- 229920006317 cationic polymer Polymers 0.000 claims abstract description 24
- 125000002091 cationic group Chemical group 0.000 claims abstract description 22
- 239000000440 bentonite Substances 0.000 claims abstract description 15
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 15
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229920002472 Starch Polymers 0.000 claims abstract description 8
- 239000008107 starch Substances 0.000 claims abstract description 8
- 235000019698 starch Nutrition 0.000 claims abstract description 8
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 5
- 239000011147 inorganic material Substances 0.000 claims abstract description 5
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000008119 colloidal silica Substances 0.000 claims abstract 2
- 229920000642 polymer Polymers 0.000 claims description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000007865 diluting Methods 0.000 claims description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 4
- 229920002873 Polyethylenimine Polymers 0.000 claims description 4
- 238000010790 dilution Methods 0.000 claims description 4
- 239000012895 dilution Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 229920001059 synthetic polymer Polymers 0.000 claims description 4
- 125000004985 dialkyl amino alkyl group Chemical group 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 150000003926 acrylamides Chemical class 0.000 claims description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 229920000768 polyamine Polymers 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- YIOJGTBNHQAVBO-UHFFFAOYSA-N dimethyl-bis(prop-2-enyl)azanium Chemical compound C=CC[N+](C)(C)CC=C YIOJGTBNHQAVBO-UHFFFAOYSA-N 0.000 claims 1
- 239000000178 monomer Substances 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 description 10
- 238000007792 addition Methods 0.000 description 8
- 229920006158 high molecular weight polymer Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 229940050176 methyl chloride Drugs 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- -1 alum Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
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
- D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
-
- 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
- D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
- D21H23/765—Addition of all compounds to the pulp
-
- 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
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- 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
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
- D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
- D21H23/16—Addition before or during pulp beating or refining
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/08—Mechanical or thermomechanical pulp
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- 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
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch 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
-
- 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
-
- 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
- Paper or paper board is made by providing a thick stock, diluting the thick stock to form a thin stock, draining the thin stock to form a sheet and drying the sheet.
- the thick stock can be made either by mixing water into dried pulp or, in an integrated mill, by diluting a drained pulp.
- the normal way of preparing it for drainage is by adding inorganic material, such as alum, talc or bentonite, at the pulping or thick stock stages.
- inorganic material such as alum, talc or bentonite
- a dry strength resin for instance a cationic starch
- paper or paper board is made by a process comprising providing a cellulosic suspension, subjecting this to one or more shear stages selected from cleaning, mixing and pumping stages, adding a main polymer, selected from substantially linear synthetic cationic polymer having molecular weight above 500,000 and cationic starch, before one of the shear stages and adding inorganic material selected from bentonite and colloidal silicic acid after that shear stage, draining the suspension to form a sheet and drying the sheet, and in this process there is a preliminary polymer inclusion stage selected from (a) the inclusion in the suspension before the main polymer of a low molecular weight water soluble synthetic cationic polymer having molecular weight lower than the molecular weight of the main polymer, and (b) the inclusion of a water soluble synthetic cationic polymer as a drainage aid for the drainage of cellulosic pulp when the suspension is made by draining a cellulosic pulp (in the presence of the drainage aid) and diluting the drained pulp.
- the preferred aspect of the invention comprises the incorporation of the said low molecular weight water soluble synthetic cationic polymer.
- the inclusion of the low molecular weight cationic polymer in the thin stock before addition of the main polymer can lead to improvement in the processing and performance properties obtained by the addition of the main polymer before a shear stage and bentonite or colloidal silicic acid after that shear stage. For instance, depending upon the other conditions, it can lead to reduced problems due to pitch and other sticky materials and can lead to improved wet and/or dry strengths, runability, drainage, linting, opacity and other paper qualities.
- the aqueous cellulosic suspension can be made either from dried pulp or, in an integrated mill, by diluting a drained pulp, all in conventional manner.
- the cellulosic suspension is made by diluting a drained pulp in an integrated mill and the drainage of the pulp is promoted by including a pulp drainage aid in the pulp that is to be drained, this draining aid comprising a water soluble cationic polymer.
- the cationic polymer for this purpose can be any of the synthetic polymers discussed below for use as the main cationic polymer.
- the amount of drainage aid polymer is usually at least 0.005 or 0.01%, often at least 0.03 or 0.05%, but it is generally unnecessary for it to be more than 0.3% or, at the most, 0.5%. Amounts of 0.1 to 0.2% are often preferred. These percentages are based on the dry weight of the pulp.
- the sunthetic polymeric drainage aid can be a drainage-promoting, relatively low molecular weight polymer, for instance any of those discussed below as the polymer having lower molecular weight than the main polymer, but is generally a relatively high molecular weight polymer for instance having a molecular weight conventional for dewatering aids and retention aids.
- the polymer typically is a substantially linear synthetic cationic polymer having molecular weight above 500,000, and preferably having intrinsic viscosity above 4dl/g.
- it may be any of the polymers described in EP 0235893.
- Intrinsic viscosities herein are derived in standard manner from determination of solution viscosities by suspended level viscometer of solutions at 25°C in 1 Molar NaCl buffered to pH about 7 using sodium phosphate.
- the thick stock is made by dilution of a wet pulp that has been drained in the presence of a drainage aid, it is preferred in the invention to incorporate the described low molecular weight weight soluble synthetic cationic polymer before the main polymer.
- the remainder of the process should be similar to the "Hydrocol" process and, thus, should be otherwise conducted as in EP 235893, using a synthetic cationic polymer having molecular weight at least 500,000 before one of the shear stages and bentonite after.
- the materials and processing conditions described in EP 235893 can be used in the invention, subject to the modification that the suspension includes the low molecular weight polymer before addition of the main polymer.
- the bentonite can be replaced by colloidal silicic acid or other suitable fine particulate material or the synthetic polymer can be replaced by cationic starch.
- the low molecular weight polymer can be present in the thick stock that is diluted to form the thin stock or it may be added to the thin stock.
- the thick stock is diluted to form the thin stock by use of white water. It is desirable to add the low molecular weight polymer before, or immediately after or during, the dilution with white water and to add the main polymer to the thin stock, after the addition of the low molecular weight polymer.
- the low molecular weight polymer should have a molecular weight sufficiently lower than the molecular weight of the main polymer that it will provide different process or performance benefits. For instance this aspect of the invention does not include a process in which both the low molecular weight and high molecular weight polymers are primarily cationic retention aids. Instead, it is restricted to processes in which the low molecular weight polymer does provide a different performance benefit.
- the low molecular weight polymer has intrinsic viscosity below 2dl/g and usually has molecular weight below 500,000. The molecular weight is usually above 50,000 and often above 100,000.
- a preferred relatively low molecular weight polymer is polyethylene imine.
- a suitable grade of this type of polymer is the material sold under the trade name Polymin SK.
- Other suitable materials are polymers and copolymers of diallyl dimethyl ammonium chloride, of dialkyl amino alkyl (meth) acrylates and of dialkylaminoalkyl (meth) acrylamides (both generally as acid addition or quaternary ammonium salts), as well as polyamines and polydicyandiamides-formaldehyde polymers. Amphoteric synthetic polymers may be used.
- One preferred process according to the invention utilises a relatively crude stock containing significant amounts of pitch and/or having high cationic demand. For instance it may require at least 0.1% Polymin SK to give improved retention when the Polymin SK is used in conventional manner as retention aid.
- Polymin is a trade mark.
- Such stocks are, for instance, those containing more than 25% by weight, usually more than 50% by weight, of mechanically derived pulps and/or deinked pulps.
- mechanically derived pulps we mean groundwood, pressure refined groundwood, thermo-mechanical, chemi-thermo mechanical or any other high yield mechanically derived fibres.
- the low molecular weight polymer can be selected primarily to reduce cationic demand and/or avoid pitch problems and/or linting.
- the process is of particular value when the stock is to be used for the manufacture of newsprint, and for this purpose stock is generally substantially unfilled or only contains small amounts of filler, for instance 0 to 15% and often 0 to 10% based on the dry weight of the stock. Benefits are however also achieved if the stock contains filler in amounts to give up to 30% filler in the final paper produced.
- the process is also of value in the manufacture of board, again often from similar crude pulps containing little or no filler.
- an alternative or additional property of the low molecular weight polymer may be to improve the strength of the board and for this purpose a low molecular weight water soluble synthetic cationic dry strength resin may be used as the polymer.
- Amphoteric polymers are particularly suitable for this purpose.
- the amount of low molecular weight polymer is up to 0.5% generally in the range 0.01 or 0.05 to 0.2%, based on the dry weight of the stock, and the optimum can be found by routine experimentation.
- the pulp, before treatment with the low molecular weight polymer has a cationic demand (as measured by titration with the main cationic polymer) of above 400g/t and the low molecular weight polymer is included in the stock, or ahead of the stock, in an amount to reduce the cationic demand of the thin stock to below 300g/t before adding the main polymer.
- the process of the invention is found to give an improvement in the performance since it can give improved pitch and/or stickies removal, improved paper quality such as opacity and linting characteristics improved wet strength or runnability during manufacture. Furthermore the performance of the process when assessed in terms of the drainage characteristics is improved by the incorporation of the second polymer, as compared to a process without that polymer, for instance a process as described in EP235893 or US4388150.
- Polymer A is a polymer of IV 7dl/g formed from 75% acrylamide and 25% dimethylaminoethyl acrylate, MeCl quaternised
- Polymer B is a modified polyethyleneimine as sold under the trade name Polymin SK.
- a 100% mixed waste stock having a consistency of 0.5% was prepared. Drainage tests were conducted on the stock using a modified Shopper Riegler freeness tester, the time for 600mls of backwater to drain from the stock sample being measured. The stock was subjected to shear and the drainage was measured. In one test no additions were made before or after the shear. In other tests bentonite was added after the shear and polymer A and/or polymer B was added before the shear. When both polymers A and B were added, B was added considerably ahead of polymer A.
- the low molecular weight polymer is polymer K which is a solution polymer of about IV 1 dl/g and formed from about 20% acrylamide and 80% by weight diallyl dimethyl ammonium chloride.
- the high molecular weight polymers are L, which is 70% acrylamide, 30% methyl chloride quaternised dimethylaminoethyl acrylate IV 8, and polymer M which is 95% acrylamide and 5% methyl chloride quaternised dimethylaminoethyl acrylate IV 11.
- the drainage rate for each of the treated suspensions is measured, with the best results being those that have the highest drainage figure. The results are as follows.
Landscapes
- Paper (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89302842T ATE86693T1 (de) | 1988-03-28 | 1989-03-22 | Herstellung von papier und pappe. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888807444A GB8807444D0 (en) | 1988-03-28 | 1988-03-28 | Production of paper & paper board |
GB8807444 | 1988-03-28 | ||
GB888815219A GB8815219D0 (en) | 1988-06-27 | 1988-06-27 | Production of paper & paper board |
GB8815219 | 1988-06-27 |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0335575A2 true EP0335575A2 (de) | 1989-10-04 |
EP0335575A3 EP0335575A3 (en) | 1990-12-12 |
EP0335575B1 EP0335575B1 (de) | 1993-03-10 |
EP0335575B2 EP0335575B2 (de) | 2000-08-23 |
Family
ID=26293708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89302842A Expired - Lifetime EP0335575B2 (de) | 1988-03-28 | 1989-03-22 | Herstellung von Papier und Pappe |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0335575B2 (de) |
JP (2) | JPH026683A (de) |
KR (1) | KR960002733B1 (de) |
AU (1) | AU613465B2 (de) |
CA (1) | CA1322435C (de) |
DE (1) | DE68905208T3 (de) |
ES (1) | ES2053980T5 (de) |
FI (1) | FI97307C (de) |
NO (1) | NO174724B (de) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0752496A3 (de) * | 1995-07-07 | 1997-01-22 | Eka Chemicals Ab | |
WO1997030219A1 (en) * | 1996-02-13 | 1997-08-21 | Allied Colloids Limited | Production of filled paper and compositions for use in this |
EP0760406A3 (de) * | 1995-08-24 | 1997-09-17 | Nalco Canada Inc | Kombination von Poly(Dadmac/Acrylamid) und Bentonit zur Pechkontrolle in Verfahren zur Papierherstellung |
WO1998001623A1 (de) * | 1996-07-09 | 1998-01-15 | Basf Aktiengesellschaft | Verfahren zur herstellung von papier und karton |
EP0953680A1 (de) * | 1998-04-27 | 1999-11-03 | Akzo Nobel N.V. | Verfahren zur Herstellung von Papier |
EP1047834A1 (de) * | 1998-09-22 | 2000-11-02 | Calgon Corporation | Mischung aus kieselsäure und saurem kolloid zu einem mikropartikelsystem für die papierherstellung |
WO2001034907A1 (en) | 1999-11-08 | 2001-05-17 | Ciba Specialty Chemicals Water Treatments Limited | Manufacture of paper and paperboard |
US6303002B1 (en) | 1997-04-16 | 2001-10-16 | Basf Aktiengesellschaft | Method for producing paper, pulpboard and cardboard |
WO2006027242A1 (de) | 2004-09-10 | 2006-03-16 | Basf Aktiengesellschaft | Verfahren zur herstellung von papier, pappe und karton |
US7306701B2 (en) | 2002-08-07 | 2007-12-11 | Basf Aktiengesellschaft | Production of paper, board and cardboard |
US7306700B1 (en) | 1998-04-27 | 2007-12-11 | Akzo Nobel Nv | Process for the production of paper |
US7442280B1 (en) | 1998-04-27 | 2008-10-28 | Akzo Nobel Nv | Process for the production of paper |
US7608191B2 (en) | 2004-02-04 | 2009-10-27 | Ciba Specialty Chemicals Water Treatments Ltd. | Production of a fermentation product |
US7998314B2 (en) | 2004-12-22 | 2011-08-16 | Basf Aktiengesellschaft | Method for the production of paper, cardboard and card |
US8067193B2 (en) | 2004-02-04 | 2011-11-29 | Ciba Specialty Chemicals Water Treatments Ltd. | Production of a fermentation product |
US8152962B2 (en) | 2004-12-03 | 2012-04-10 | Basf Aktiengesellschaft | Method for producing paper with a high substance weight |
WO2013127731A1 (en) | 2012-03-01 | 2013-09-06 | Basf Se | Process for the manufacture of paper and paperboard |
WO2014108844A1 (en) | 2013-01-11 | 2014-07-17 | Basf Se | Process for the manufacture of paper and paperboard |
US8790493B2 (en) | 2004-12-22 | 2014-07-29 | Akzo Nobel N.V. | Process for the production of paper |
US8888957B2 (en) | 2005-12-30 | 2014-11-18 | Akzo Nobel N.V. | Process for the production of paper |
US9139958B2 (en) | 2005-05-16 | 2015-09-22 | Akzo Nobel N.V. | Process for the production of paper |
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SE9003954L (sv) * | 1990-12-11 | 1992-06-12 | Eka Nobel Ab | Saett foer framstaellning av ark- eller banformiga cellulosafiberinnehaallande produkter |
US5126014A (en) * | 1991-07-16 | 1992-06-30 | Nalco Chemical Company | Retention and drainage aid for alkaline fine papermaking process |
US5221435A (en) * | 1991-09-27 | 1993-06-22 | Nalco Chemical Company | Papermaking process |
DE4311599A1 (de) * | 1993-04-08 | 1994-10-13 | Henkel Kgaa | Verfahren zur Kontrolle des Absetzens klebender Verunreinigungen aus Papierstoff-Suspensionen |
US5484834A (en) * | 1993-11-04 | 1996-01-16 | Nalco Canada Inc. | Liquid slurry of bentonite |
GB9410920D0 (en) * | 1994-06-01 | 1994-07-20 | Allied Colloids Ltd | Manufacture of paper |
US5810971A (en) * | 1995-05-17 | 1998-09-22 | Nalco Canada, Inc. | Liquid slurry of bentonite |
US5840158A (en) * | 1995-09-28 | 1998-11-24 | Nalco Chemical Company | Colloidal silica/polyelectrolyte blends for pulp and paper applications |
US5620629A (en) * | 1995-09-28 | 1997-04-15 | Nalco Chemical Company | Colloidal silica/polyelectrolyte blends for natural water clarification |
GB9603909D0 (en) | 1996-02-23 | 1996-04-24 | Allied Colloids Ltd | Production of paper |
US6113741A (en) * | 1996-12-06 | 2000-09-05 | Eka Chemicals Ab | Process for the production of paper |
DE19654390A1 (de) * | 1996-12-27 | 1998-07-02 | Basf Ag | Verfahren zur Herstellung von Papier |
US6083997A (en) * | 1998-07-28 | 2000-07-04 | Nalco Chemical Company | Preparation of anionic nanocomposites and their use as retention and drainage aids in papermaking |
WO2002025013A1 (en) | 2000-09-20 | 2002-03-28 | Akzo Nobel N.V. | A process for the production of paper |
MY140287A (en) | 2000-10-16 | 2009-12-31 | Ciba Spec Chem Water Treat Ltd | Manufacture of paper and paperboard |
JP3819731B2 (ja) * | 2000-11-30 | 2006-09-13 | ハイモ株式会社 | 中性新聞用紙の抄紙方法 |
JP4517662B2 (ja) * | 2004-02-10 | 2010-08-04 | 栗田工業株式会社 | 紙及び板紙の製造方法 |
MX2009004481A (es) * | 2006-10-25 | 2009-05-12 | Ciba Holding Inc | Un proceso para mejorar la resistencia del papel. |
US7758934B2 (en) | 2007-07-13 | 2010-07-20 | Georgia-Pacific Consumer Products Lp | Dual mode ink jet paper |
JP5190877B2 (ja) * | 2008-04-04 | 2013-04-24 | ハイモ株式会社 | 紙の欠陥発生抑制方法 |
JP5584505B2 (ja) * | 2010-03-30 | 2014-09-03 | 日本製紙株式会社 | 紙の製造方法 |
JP6929899B2 (ja) * | 2018-06-15 | 2021-09-01 | 栗田工業株式会社 | 紙及び紙板の製造方法 |
WO2019239819A1 (ja) * | 2018-06-15 | 2019-12-19 | 栗田工業株式会社 | 紙及び紙板の製造方法 |
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US4795531A (en) * | 1987-09-22 | 1989-01-03 | Nalco Chemical Company | Method for dewatering paper |
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JPS5512868A (en) * | 1978-07-12 | 1980-01-29 | Mitsubishi Paper Mills Ltd | Production of neutral paper |
DE3065576D1 (en) * | 1979-03-28 | 1983-12-22 | Allied Colloids Ltd | Production of paper and paper board |
JPH0192498A (ja) * | 1987-10-02 | 1989-04-11 | Hokuetsu Paper Mills Ltd | 中性紙の製造方法 |
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1989
- 1989-03-22 EP EP89302842A patent/EP0335575B2/de not_active Expired - Lifetime
- 1989-03-22 ES ES89302842T patent/ES2053980T5/es not_active Expired - Lifetime
- 1989-03-22 DE DE68905208T patent/DE68905208T3/de not_active Expired - Lifetime
- 1989-03-27 JP JP1074813A patent/JPH026683A/ja active Granted
- 1989-03-28 KR KR1019890003911A patent/KR960002733B1/ko not_active IP Right Cessation
- 1989-03-28 CA CA000594866A patent/CA1322435C/en not_active Expired - Lifetime
- 1989-03-28 FI FI891465A patent/FI97307C/fi not_active IP Right Cessation
- 1989-03-28 NO NO891301A patent/NO174724B/no unknown
- 1989-03-28 AU AU31749/89A patent/AU613465B2/en not_active Expired
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- 1992-09-18 JP JP4249955A patent/JPH05239800A/ja active Pending
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EP0223223A1 (de) * | 1985-11-21 | 1987-05-27 | BASF Aktiengesellschaft | Verfahren zur Herstellung von Papier und Karton |
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 |
Cited By (34)
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EP0752496A3 (de) * | 1995-07-07 | 1997-01-22 | Eka Chemicals Ab | |
EP0760406A3 (de) * | 1995-08-24 | 1997-09-17 | Nalco Canada Inc | Kombination von Poly(Dadmac/Acrylamid) und Bentonit zur Pechkontrolle in Verfahren zur Papierherstellung |
WO1997030219A1 (en) * | 1996-02-13 | 1997-08-21 | Allied Colloids Limited | Production of filled paper and compositions for use in this |
WO1998001623A1 (de) * | 1996-07-09 | 1998-01-15 | Basf Aktiengesellschaft | Verfahren zur herstellung von papier und karton |
US6303002B1 (en) | 1997-04-16 | 2001-10-16 | Basf Aktiengesellschaft | Method for producing paper, pulpboard and cardboard |
US7306700B1 (en) | 1998-04-27 | 2007-12-11 | Akzo Nobel Nv | Process for the production of paper |
EP0953680A1 (de) * | 1998-04-27 | 1999-11-03 | Akzo Nobel N.V. | Verfahren zur Herstellung von Papier |
WO1999055965A1 (en) * | 1998-04-27 | 1999-11-04 | Akzo Nobel N.V. | A process for the production of paper |
WO1999055964A1 (en) * | 1998-04-27 | 1999-11-04 | Akzo Nobel N.V. | A process for the production of paper |
WO1999055962A3 (en) * | 1998-04-27 | 1999-12-16 | Akzo Nobel Nv | A process for the production of paper |
CZ301092B6 (cs) * | 1998-04-27 | 2009-11-04 | Akzo Nobel N. V. | Zpusob výroby papíru |
US7442280B1 (en) | 1998-04-27 | 2008-10-28 | Akzo Nobel Nv | Process for the production of paper |
EP1047834A1 (de) * | 1998-09-22 | 2000-11-02 | Calgon Corporation | Mischung aus kieselsäure und saurem kolloid zu einem mikropartikelsystem für die papierherstellung |
EP1047834A4 (de) * | 1998-09-22 | 2000-12-13 | Calgon Corp | Mischung aus kieselsäure und saurem kolloid zu einem mikropartikelsystem für die papierherstellung |
EP1238160B2 (de) † | 1999-11-08 | 2012-02-22 | Ciba Specialty Chemicals Water Treatments Limited | Herstellung von papier und pappe |
WO2001034907A1 (en) | 1999-11-08 | 2001-05-17 | Ciba Specialty Chemicals Water Treatments Limited | Manufacture of paper and paperboard |
US7306701B2 (en) | 2002-08-07 | 2007-12-11 | Basf Aktiengesellschaft | Production of paper, board and cardboard |
US7608191B2 (en) | 2004-02-04 | 2009-10-27 | Ciba Specialty Chemicals Water Treatments Ltd. | Production of a fermentation product |
US7867400B2 (en) | 2004-02-04 | 2011-01-11 | Ciba Speacialty Chemicals Water treaments Ltd. | Production of a fermentation product |
US8067193B2 (en) | 2004-02-04 | 2011-11-29 | Ciba Specialty Chemicals Water Treatments Ltd. | Production of a fermentation product |
US8029647B2 (en) | 2004-09-10 | 2011-10-04 | Basf Aktiengesellschaft | Method for the production of paper, paperboard and cardboard |
WO2006027242A1 (de) | 2004-09-10 | 2006-03-16 | Basf Aktiengesellschaft | Verfahren zur herstellung von papier, pappe und karton |
US8152962B2 (en) | 2004-12-03 | 2012-04-10 | Basf Aktiengesellschaft | Method for producing paper with a high substance weight |
US8790493B2 (en) | 2004-12-22 | 2014-07-29 | Akzo Nobel N.V. | Process for the production of paper |
US7998314B2 (en) | 2004-12-22 | 2011-08-16 | Basf Aktiengesellschaft | Method for the production of paper, cardboard and card |
US9562327B2 (en) | 2004-12-22 | 2017-02-07 | Akzo Nobel N.V. | Process for the production of paper |
US9139958B2 (en) | 2005-05-16 | 2015-09-22 | Akzo Nobel N.V. | Process for the production of paper |
US8888957B2 (en) | 2005-12-30 | 2014-11-18 | Akzo Nobel N.V. | Process for the production of paper |
US9404223B2 (en) | 2012-02-01 | 2016-08-02 | Basf Se | Process for the manufacture of paper and paperboard |
WO2013127731A1 (en) | 2012-03-01 | 2013-09-06 | Basf Se | Process for the manufacture of paper and paperboard |
US9631319B2 (en) | 2012-03-01 | 2017-04-25 | Basf Se | Process for the manufacture of paper and paperboard |
EP2820189B1 (de) | 2012-03-01 | 2017-12-20 | Basf Se | Verfahren zur herstellung von papier und pappe |
WO2014108844A1 (en) | 2013-01-11 | 2014-07-17 | Basf Se | Process for the manufacture of paper and paperboard |
US10113270B2 (en) | 2013-01-11 | 2018-10-30 | Basf Se | Process for the manufacture of paper and paperboard |
Also Published As
Publication number | Publication date |
---|---|
EP0335575A3 (en) | 1990-12-12 |
KR890014836A (ko) | 1989-10-25 |
CA1322435C (en) | 1993-09-28 |
AU3174989A (en) | 1989-09-28 |
DE68905208D1 (de) | 1993-04-15 |
FI891465A0 (fi) | 1989-03-28 |
JPH026683A (ja) | 1990-01-10 |
DE68905208T2 (de) | 1993-10-07 |
JPH0529719B2 (de) | 1993-05-06 |
NO891301L (no) | 1989-09-29 |
NO174724B (no) | 1994-03-14 |
EP0335575B1 (de) | 1993-03-10 |
EP0335575B2 (de) | 2000-08-23 |
FI97307C (fi) | 1997-11-11 |
NO891301D0 (no) | 1989-03-28 |
DE68905208T3 (de) | 2001-02-15 |
KR960002733B1 (ko) | 1996-02-26 |
FI97307B (fi) | 1996-08-15 |
FI891465A (fi) | 1989-09-29 |
ES2053980T5 (es) | 2000-12-16 |
ES2053980T3 (es) | 1994-08-01 |
JPH05239800A (ja) | 1993-09-17 |
AU613465B2 (en) | 1991-08-01 |
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