US20040168783A1 - Method for recycling pulp rejects - Google Patents
Method for recycling pulp rejects Download PDFInfo
- Publication number
- US20040168783A1 US20040168783A1 US10/476,620 US47662004A US2004168783A1 US 20040168783 A1 US20040168783 A1 US 20040168783A1 US 47662004 A US47662004 A US 47662004A US 2004168783 A1 US2004168783 A1 US 2004168783A1
- Authority
- US
- United States
- Prior art keywords
- weight
- particles
- commercially available
- slurry
- cleaner
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004064 recycling Methods 0.000 title claims abstract description 6
- 239000000123 paper Substances 0.000 claims abstract description 59
- 239000011111 cardboard Substances 0.000 claims abstract description 17
- 238000002360 preparation method Methods 0.000 claims abstract description 16
- 239000006255 coating slurry Substances 0.000 claims abstract description 12
- 239000011087 paperboard Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims description 49
- 239000011248 coating agent Substances 0.000 claims description 48
- 239000000945 filler Substances 0.000 claims description 46
- 239000000049 pigment Substances 0.000 claims description 44
- 239000002002 slurry Substances 0.000 claims description 29
- 239000007787 solid Substances 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 25
- 238000003801 milling Methods 0.000 claims description 24
- 239000000835 fiber Substances 0.000 claims description 18
- 238000009826 distribution Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007639 printing Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 28
- 239000004927 clay Substances 0.000 description 18
- 239000004816 latex Substances 0.000 description 13
- 229920000126 latex Polymers 0.000 description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 description 12
- 229920000877 Melamine resin Polymers 0.000 description 10
- 229920001807 Urea-formaldehyde Polymers 0.000 description 10
- 239000011575 calcium Substances 0.000 description 10
- 239000003822 epoxy resin Substances 0.000 description 10
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 10
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 10
- 229920000647 polyepoxide Polymers 0.000 description 10
- 239000004848 polyfunctional curative Substances 0.000 description 10
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 6
- 239000002956 ash Substances 0.000 description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- 229920002261 Corn starch Polymers 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 4
- 240000008042 Zea mays Species 0.000 description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 235000005822 corn Nutrition 0.000 description 4
- 229920001592 potato starch Polymers 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- 235000019698 starch Nutrition 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000000454 talc Substances 0.000 description 4
- 229910052623 talc Inorganic materials 0.000 description 4
- 235000012222 talc Nutrition 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- -1 calcium carbonate Chemical compound 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000294754 Macroptilium atropurpureum Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000009838 combustion analysis Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000002023 wood Substances 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
- D21H19/00—Coated paper; Coating material
-
- 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
- D21H17/01—Waste products, e.g. sludge
Definitions
- the present invention relates to a process for recycling cleaner rejects from the preparation of paper, paperboard and cardboard and to their use for the preparation of paper in the paper stock or as a coating slurry for the paper industry.
- the raw material i.e., wood pulp, wood, fine straw pulp or rag pulp
- repulped half-stock fillers and pigments in order to achieve a closed surface and thus to improve the properties of the paper, especially the whiteness, opacity and printability.
- Uncoated papers contain up to 35% by weight of fillers, coated papers contain from 25 to 50% by weight thereof.
- the amount of fillers employed is highly dependent on the intended use of the paper. Highly filled papers have a lower strength and poorer sizing properties.
- the filler content in the paper stock is usually between 5 and 35% by weight and consists of primary pigments or recycled coating pigments which may be derived from coating residuals or from coated rejects.
- primary pigments or recycled coating pigments which may be derived from coating residuals or from coated rejects.
- grain size plays an important role since it has a strong influence on the filler efficiency and the physical properties of the paper, in particular porosity.
- the proportion of filler remaining in the paper is between 20 and 80% of the amount added to the fiber suspension.
- cleaner rejects obtained therein also referred to as coated rejects
- coated rejects mainly consist of minerals and fibers and may comprise from 1 to 4% of the total volume of the paper produced.
- they are disposed of in dumps.
- the total amount of the cleaner rejects obtained and passed to disposal is not reduced.
- the object of the invention is to provide a process for the recycling of cleaner rejects while energy costs and costs of raw materials, shipping costs as well as costs for dumping are saved.
- cleaner rejects especially from centrifugal cleaners, from the preparation of paper, paperboard and cardboard, characterized in that cleaner rejects, which contain fibers, coating pigments and/or fillers, are milled to the desired grain size distribution, optionally with the addition of water, coating pigment, fresh filler and/or filler slurry, and employed as a raw material for the paper stock and/or coating slurry.
- the cleaner rejects which are usually solid, contain valuable raw materials which can be recovered by means of the present invention and, after milling, recycled to various processes of papermaking.
- the cleaner rejects from paper mills which prepare coated paper or cardboard grades contain large quantities of coating pigment flakes. The thicker the coating layer, the more difficult is the recovery of the flakes by the prior art technologies. Double-coated grades or coated cardboard grades may be mentioned here as particular examples.
- Another group of paper industries are the SC-paper producing plants, which lose large amounts of fillers through cleaner rejects.
- the cleaner rejects are milled and optionally admixed with water, coating pigment, filler and/or filler slurry.
- the cleaner reject slurry or the milled powder is then recycled to the papermaking process for the paper stock and/or as a coating slurry.
- the distribution of the particle sizes of the cleaner rejects is essentially the same as the original distribution in the coating pigments, fillers or filler/pigment slurries.
- more than 95% of the total cleaner rejects, or even the full amount thereof, can be recovered and recycled to production.
- the cleaner rejects processed according to the invention serves, for example, as a filler, whereby the consumption of fresh filler or pigment can be reduced consistently.
- the milling of the cleaner rejects is preferably installed in a centrifugal cleaner system downstream from the last of usually several stages of a centrifugal cleaner.
- the accepted stock from the additional cleaner system is recycled to the previous stage, and the residual amount of the cleaner rejects forms the final reject.
- the simplest application area is intended to comprise installing the milling after the last but one cleaner stage and employing the last cleaner process as a final stage.
- fillers and coating pigments either as powders or in the form of concentrated slurries with a solids content of preferably from 30 to 85% by weight for the paper stock or for the preparation of coating slurries.
- the fresh fillers and pigments are usually supplied by the manufacturers with the desired whiteness and grain size distribution as a slurry or powder.
- cleaner rejects In the processing of cleaner rejects, it is of course required to separate and discard the coarse dirt contents consisting of splinters, sand grains and other impurities.
- multistage centrifugal cleaners are usually employed.
- the screenings thus obtained consist of fibers, fillers, pigments, fine sand, black particles and agglomerates of fillers and pigments, or pigments, fibers and fillers.
- “Filler” usually means the fine particles employed in the paper stock; “pigment” means the fine particles employed in the coat.
- the milling into powders or slurries can be performed continuously or discontinuously in usual dry mills or wet mills, especially agitator ball mills, for example, having a content of from 700 to 5000 l or more.
- Milling media preferably milling balls, especially having a diameter of from 1 to 4 mm, are used.
- Screens preferably sieve bends, for separating impurities (ball crushings, separating materials, rust etc.) are usually used for processing.
- Laser measuring instruments serve to determine and control the milling fineness during the milling process and for the computer-based control of the agitator ball mill system.
- the ratio of fillers and/or pigments to fibers can vary widely. It is particularly preferred according to the invention to employ cleaner rejects having an optionally enriched concentration of fillers and/or coating pigments within a range of from 5 to 90% by weight, especially from 30 to 70% by weight, based on the solids content.
- the fiber content, on the one hand, or the content of filler and/or coating pigment may vary, for example, from 1 to 99% by weight, or from 99 to 1% by weight. “Enrichment” within the meaning of the present invention especially comprises the addition of fresh filler and/or fresh pigment.
- china clay natural or precipitated calcium carbonates, artificial or natural aluminum silicates and oxide hydrates, titanium dioxide, satin white, dolomite, mica, metal flakes, especially aluminum flakes, bentonite, rutile, magnesium hydroxide, gypsum, sheet silicates, talcum, calcium silicate and other rocks and earths are preferably used as the fresh pigment and/or fresh filler before, after and/or during the milling.
- the fresh pigment or fresh filler is preferably employed as a powder, aqueous fresh-pigment containing and/or fresh-filler containing slurries in the presence of the cleaner rejects and optionally usual milling aids and/or dispersing aids to give a slurry with a solids content of, for example, from 30 to 85% by weight, especially from 40 to 75% by weight.
- the added amount of fibers, coating pigments and/or fillers is from 1 to 100% by weight, based on the cleaner rejects.
- the addition of water in order to employ the cleaner rejects milled according to the invention in a diluted slurry for the stock flow.
- the milling is performed in the presence of water in an amount of from 1 to 1000% by weight, especially from 100 to 1000% by weight, based on the solids content.
- the cleaner rejects are preferably milled to a slurry or powder having a grain size distribution of from 10 to 99% by weight of particles ⁇ 1 ⁇ m, especially from 10 to 95% by weight of particles ⁇ 1 ⁇ m, respectively based on the equivalent diameter.
- cleaner rejects Even though per se known wetting agents, stabilizers, milling aids and dispersing aids may be employed according to the invention during the mixing and milling of the cleaner rejects, as known, for example, from EP 0 625 611 A1, the quantity thereof required is clearly reduced according to the invention as compared to the prior art.
- the cleaner rejects already contain some amount of the mentioned agents which are recycled to the papermaking process according to the invention.
- the powders or slurries obtainable according to the present invention may be employed to particular advantage in the paper industry, especially for the preparation of a coat for paper coating or in the paper stock.
- the cleaner rejects milled according to the invention is preferably employed in the coating slurry, and when the fiber content is high, it is preferably employed in the paper stock. According to the invention, a good retention on the screen is obtained. Particularly preferred is the use of the cleaner rejects milled according to the invention for the preparation of offset paper.
- the slurries according to the invention are also suitable for the preparation of a coating slurry for light-weight coated papers, especially with high coating speeds, and for the preparation of rotary offset papers, especially for the preparation of light-weight coated rotary offset papers, the coating of cardboard and special papers, such as labels, wallpapers, silicone base paper, self-copying paper, and for admixture with intaglio printing paper.
- the coating pigment slurries obtainable according to the invention may be employed, in particular, in sheet-fed offset papers, especially for sheet-fed offset single coating, sheet-fed offset double coating: sheet-fed offset precoating and sheet-fed offset top coating; in rotary offset papers, especially for LWC rotary offset single coating, rotary offset double coating: rotary offset precoating and rotary offset top coating; in intaglio printing, especially for LWC intaglio single coating, intaglio double coating: intaglio precoating and intaglio top coating; in cardboard, especially for cardboard double coating: cardboard precoating and cardboard top coating; and for special papers, especially for labels and flexible packings.
- the process offers the opportunity to employ the pigment slurries prepared according to the invention without a loss in quality in the base papers, coatings and especially final qualities prepared therewith.
- CMC carboxymethylcellulose
- Cleaner rejects from the process of a commercially available papermaking machine of the prior art were milled in a 15% by weight suspension to a slurry having a grain size of ⁇ 10 ⁇ m and added to the stock flow of the paper stock.
Landscapes
- Paper (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Processing Of Solid Wastes (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10122331.5 | 2001-05-08 | ||
| DE10122331A DE10122331B4 (de) | 2001-05-08 | 2001-05-08 | Verfahren zur Wiederverwertung von Spuckstoff sowie dessen Verwendung |
| PCT/EP2002/000699 WO2002090651A1 (de) | 2001-05-08 | 2002-01-24 | Verfahren zur wiederverwertung von spuckstoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20040168783A1 true US20040168783A1 (en) | 2004-09-02 |
Family
ID=7684031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/476,620 Abandoned US20040168783A1 (en) | 2001-05-08 | 2002-01-24 | Method for recycling pulp rejects |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US20040168783A1 (cs) |
| EP (1) | EP1313917B1 (cs) |
| JP (1) | JP4463480B2 (cs) |
| KR (1) | KR100778426B1 (cs) |
| CN (1) | CN1238600C (cs) |
| AT (1) | ATE266768T1 (cs) |
| AU (1) | AU2002235867B2 (cs) |
| BG (1) | BG108226A (cs) |
| BR (1) | BR0209390A (cs) |
| CA (1) | CA2443065C (cs) |
| CZ (1) | CZ20033036A3 (cs) |
| DE (2) | DE10122331B4 (cs) |
| DK (1) | DK1313917T3 (cs) |
| ES (1) | ES2201949T3 (cs) |
| HU (1) | HUP0400018A3 (cs) |
| MX (1) | MXPA03009321A (cs) |
| NO (1) | NO20034968D0 (cs) |
| PL (1) | PL206622B1 (cs) |
| PT (1) | PT1313917E (cs) |
| SI (1) | SI1313917T1 (cs) |
| SK (1) | SK286317B6 (cs) |
| TR (1) | TR200401126T4 (cs) |
| UA (1) | UA74639C2 (cs) |
| WO (1) | WO2002090651A1 (cs) |
| ZA (1) | ZA200307798B (cs) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030041990A1 (en) * | 1996-07-09 | 2003-03-06 | Dieter Munchow | Process for recycling fillers and coating pigments from the preparation of paper, paperboard and cardboard |
| EP2236664A1 (en) | 2009-03-30 | 2010-10-06 | Omya Development AG | Process for the production of nano-fibrillar cellulose suspensions |
| EP2268864A1 (en) | 2008-04-03 | 2011-01-05 | Innventia AB | Composition for coating of printing paper |
| EP2350387A2 (en) | 2009-05-15 | 2011-08-03 | Imerys Minerals Limited | Paper filler composition |
| WO2012052617A1 (en) * | 2010-10-18 | 2012-04-26 | Mzymes Oy | Processing of wood fibre fraction |
| US8871056B2 (en) | 2009-03-30 | 2014-10-28 | Omya International Ag | Process for the production of nano-fibrillar cellulose gels |
| US9169596B2 (en) | 2009-06-18 | 2015-10-27 | Upm-Kymmene Corporation | Paper product and process for making same |
| EP2640893B1 (en) | 2010-11-15 | 2017-08-23 | FiberLean Technologies Limited | Compositions |
| US10053817B2 (en) | 2010-04-27 | 2018-08-21 | Fiberlean Technologies Limited | Process for the manufacture of structured materials using nano-fibrillar cellulose gels |
| US10214859B2 (en) | 2016-04-05 | 2019-02-26 | Fiberlean Technologies Limited | Paper and paperboard products |
| CN110694348A (zh) * | 2019-10-28 | 2020-01-17 | 海南金海浆纸业有限公司 | 一种造纸涂料废渣解离系统及方法 |
| US10577469B2 (en) | 2015-10-14 | 2020-03-03 | Fiberlean Technologies Limited | 3D-formable sheet material |
| US10794006B2 (en) | 2016-04-22 | 2020-10-06 | Fiberlean Technologies Limited | Compositions comprising microfibrilated cellulose and polymers and methods of manufacturing fibres and nonwoven materials therefrom |
| US11155697B2 (en) | 2010-04-27 | 2021-10-26 | Fiberlean Technologies Limited | Process for the production of gel-based composite materials |
| US11846072B2 (en) | 2016-04-05 | 2023-12-19 | Fiberlean Technologies Limited | Process of making paper and paperboard products |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2014830A1 (de) | 2007-06-22 | 2009-01-14 | Alpha Calcit Füllstoff Gesellschaft mbH | Herstellung von Streichfarbendispersionen |
| CA2824076A1 (en) | 2012-08-21 | 2014-02-21 | University Of New Brunswick | System and method for reclaiming rejects in sulfite pulping |
| CN104250942B (zh) * | 2013-06-25 | 2016-08-24 | 立诚包装有限公司 | 中小型包装纸厂污泥回用工艺 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115187A (en) * | 1970-03-31 | 1978-09-19 | Welwyn Hall Research Association | Agglomerated fillers used in paper |
| US4641790A (en) * | 1983-12-16 | 1987-02-10 | J. M. Voith Gmbh | System for wastepaper processing using a wash filter |
| US5139652A (en) * | 1990-12-31 | 1992-08-18 | A. Ahlstrom Corporation | Centrifugal cleaner |
| US5334285A (en) * | 1990-11-23 | 1994-08-02 | J. M. Voith Gmbh | Process for the treatment of wastepaper using drum soaker |
| US5605568A (en) * | 1993-04-16 | 1997-02-25 | Pluess-Staufer Ag | CaCO3 -talc coating pigment slurry, process of preparing the same, and use thereof |
| US5882475A (en) * | 1997-03-26 | 1999-03-16 | Ahlstrom Machinery Inc. | Method of recovering fibers from a reject stream generated in a wastepaper treating process |
| US5996806A (en) * | 1995-03-07 | 1999-12-07 | Ahlstrom Machinery Oy | Method and apparatus for treating filler-containing material such as recycled fibers |
| US6164572A (en) * | 1996-07-26 | 2000-12-26 | Tudahl; Daniel L. | Apparatus and method for recycling gypsum wallboard |
| US6214166B1 (en) * | 1996-07-09 | 2001-04-10 | Alpha Calcitt Fullstoff Gmbh | Process for recycling fillers and coating pigments from the preparation of paper, paperboard and cardboard |
| US6843886B1 (en) * | 1999-11-24 | 2005-01-18 | Megatrex Oy | Method for handling filled reject flows in a paper or paperboard mill |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3116905C2 (de) * | 1981-04-29 | 1986-06-26 | J.M. Voith Gmbh, 7920 Heidenheim | Verfahren zur Altpapieraufbereitung und Vorrichtung zur Durchführung des Verfahrens |
| DE3148749C2 (de) * | 1981-12-09 | 1984-09-27 | Steinbeis Papier GmbH, 7121 Gemmrigheim | Papiere, vorzugsweise für den Bogendruck, hergestellt aus aufbereitetem Altpapier, und Verfahren zu deren Herstellung |
| DE3414460A1 (de) * | 1983-12-16 | 1985-10-24 | J.M. Voith Gmbh, 7920 Heidenheim | Anordnung zur aufbereitung von altpapier |
| EP0183863B2 (de) * | 1984-12-03 | 1991-10-23 | Steinbeis Temming Papier GmbH & Co. | Staubarmes Formatpapier, Verfahren zu dessen Herstellung und Verwendung desselben |
| FI85041C (fi) * | 1989-01-16 | 1992-02-25 | Enso Gutzeit Oy | Foerfarande foer att bringa pappersmassa pao en pappersmaskins vira. |
| DE4042221A1 (de) * | 1990-12-29 | 1992-07-02 | Pwa Industriepapier Gmbh | Faserstoffkomponente zur papierherstellung, mit dieser hergestelltes papier und dessen verwendung sowie verfahren zur herstellung von faserstoffkomponente und papier |
| US5390860A (en) * | 1992-05-15 | 1995-02-21 | Tetra Laval Holdings & Finance Sa | Method and apparatus for separating paper fiber and plastics from mixed waste materials and products obtained thereby |
| DE19631150B4 (de) * | 1996-08-01 | 2007-04-19 | Süd-Chemie AG | Verfahren zur Ablösung von Druckfarben (Deinking) von cellulosehaltigen Druckträgern |
-
2001
- 2001-05-08 DE DE10122331A patent/DE10122331B4/de not_active Expired - Lifetime
-
2002
- 2002-01-24 DK DK02702307T patent/DK1313917T3/da active
- 2002-01-24 HU HU0400018A patent/HUP0400018A3/hu unknown
- 2002-01-24 PL PL366987A patent/PL206622B1/pl unknown
- 2002-01-24 DE DE50200434T patent/DE50200434D1/de not_active Revoked
- 2002-01-24 CZ CZ20033036A patent/CZ20033036A3/cs unknown
- 2002-01-24 SI SI200230016T patent/SI1313917T1/xx unknown
- 2002-01-24 ES ES02702307T patent/ES2201949T3/es not_active Expired - Lifetime
- 2002-01-24 JP JP2002587701A patent/JP4463480B2/ja not_active Expired - Fee Related
- 2002-01-24 MX MXPA03009321A patent/MXPA03009321A/es active IP Right Grant
- 2002-01-24 BR BR0209390-1A patent/BR0209390A/pt not_active Application Discontinuation
- 2002-01-24 KR KR1020037014058A patent/KR100778426B1/ko not_active Expired - Fee Related
- 2002-01-24 US US10/476,620 patent/US20040168783A1/en not_active Abandoned
- 2002-01-24 PT PT02702307T patent/PT1313917E/pt unknown
- 2002-01-24 UA UA20031110032A patent/UA74639C2/uk unknown
- 2002-01-24 AU AU2002235867A patent/AU2002235867B2/en not_active Ceased
- 2002-01-24 TR TR2004/01126T patent/TR200401126T4/xx unknown
- 2002-01-24 CN CNB02809641XA patent/CN1238600C/zh not_active Expired - Fee Related
- 2002-01-24 CA CA002443065A patent/CA2443065C/en not_active Expired - Fee Related
- 2002-01-24 EP EP02702307A patent/EP1313917B1/de not_active Revoked
- 2002-01-24 WO PCT/EP2002/000699 patent/WO2002090651A1/de not_active Ceased
- 2002-01-24 SK SK1356-2003A patent/SK286317B6/sk not_active IP Right Cessation
- 2002-01-24 AT AT02702307T patent/ATE266768T1/de active
-
2003
- 2003-10-03 BG BG108226A patent/BG108226A/bg unknown
- 2003-10-06 ZA ZA200307798A patent/ZA200307798B/en unknown
- 2003-11-07 NO NO20034968A patent/NO20034968D0/no not_active Application Discontinuation
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115187A (en) * | 1970-03-31 | 1978-09-19 | Welwyn Hall Research Association | Agglomerated fillers used in paper |
| US4641790A (en) * | 1983-12-16 | 1987-02-10 | J. M. Voith Gmbh | System for wastepaper processing using a wash filter |
| US5334285A (en) * | 1990-11-23 | 1994-08-02 | J. M. Voith Gmbh | Process for the treatment of wastepaper using drum soaker |
| US5139652A (en) * | 1990-12-31 | 1992-08-18 | A. Ahlstrom Corporation | Centrifugal cleaner |
| US5605568A (en) * | 1993-04-16 | 1997-02-25 | Pluess-Staufer Ag | CaCO3 -talc coating pigment slurry, process of preparing the same, and use thereof |
| US5996806A (en) * | 1995-03-07 | 1999-12-07 | Ahlstrom Machinery Oy | Method and apparatus for treating filler-containing material such as recycled fibers |
| US6214166B1 (en) * | 1996-07-09 | 2001-04-10 | Alpha Calcitt Fullstoff Gmbh | Process for recycling fillers and coating pigments from the preparation of paper, paperboard and cardboard |
| US6164572A (en) * | 1996-07-26 | 2000-12-26 | Tudahl; Daniel L. | Apparatus and method for recycling gypsum wallboard |
| US5882475A (en) * | 1997-03-26 | 1999-03-16 | Ahlstrom Machinery Inc. | Method of recovering fibers from a reject stream generated in a wastepaper treating process |
| US6843886B1 (en) * | 1999-11-24 | 2005-01-18 | Megatrex Oy | Method for handling filled reject flows in a paper or paperboard mill |
Cited By (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030041990A1 (en) * | 1996-07-09 | 2003-03-06 | Dieter Munchow | Process for recycling fillers and coating pigments from the preparation of paper, paperboard and cardboard |
| US7887629B2 (en) * | 1996-07-09 | 2011-02-15 | Alpha Calcit Füllstoff Gmbh | Process for the preparation of paper, paperboard and cardboard |
| EP2268864A1 (en) | 2008-04-03 | 2011-01-05 | Innventia AB | Composition for coating of printing paper |
| EP2808440A1 (en) | 2009-03-30 | 2014-12-03 | Omya International AG | Process for the production of nano-fibrillar cellulose suspensions |
| EP4105380A1 (en) * | 2009-03-30 | 2022-12-21 | FiberLean Technologies Limited | Process for the production of nanofibrillar cellulose suspensions |
| EP2414584A1 (en) | 2009-03-30 | 2012-02-08 | Omya Development AG | Process for the production of nano-fibrillar cellulose suspensions |
| EP2236664A1 (en) | 2009-03-30 | 2010-10-06 | Omya Development AG | Process for the production of nano-fibrillar cellulose suspensions |
| US8871056B2 (en) | 2009-03-30 | 2014-10-28 | Omya International Ag | Process for the production of nano-fibrillar cellulose gels |
| US10294371B2 (en) * | 2009-03-30 | 2019-05-21 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose gels |
| US8871057B2 (en) | 2009-03-30 | 2014-10-28 | Omya International Ag | Process for the production of nano-fibrillar cellulose suspensions |
| US10982387B2 (en) | 2009-03-30 | 2021-04-20 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose suspensions |
| US10975242B2 (en) | 2009-03-30 | 2021-04-13 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose gels |
| EP3617400A1 (en) * | 2009-03-30 | 2020-03-04 | FiberLean Technologies Limited | Use of nanofibrillar cellulose suspensions |
| EP2236664B1 (en) | 2009-03-30 | 2015-12-16 | Omya International AG | Process for the production of nano-fibrillar cellulose suspensions |
| US10301774B2 (en) * | 2009-03-30 | 2019-05-28 | Fiberlean Technologies Limited | Process for the production of nano-fibrillar cellulose suspensions |
| US11970817B2 (en) | 2009-05-15 | 2024-04-30 | Fiberlean Technologies Limited | Paper filler composition |
| US10100464B2 (en) | 2009-05-15 | 2018-10-16 | Fiberlean Technologies Limited | Paper filler composition |
| EP2350387A2 (en) | 2009-05-15 | 2011-08-03 | Imerys Minerals Limited | Paper filler composition |
| US11377791B2 (en) | 2009-05-15 | 2022-07-05 | Fiberlean Technologies Limited | Paper filler composition |
| US11162219B2 (en) | 2009-05-15 | 2021-11-02 | Fiberlean Technologies Limited | Paper filler composition |
| US8231764B2 (en) | 2009-05-15 | 2012-07-31 | Imerys Minerals, Limited | Paper filler method |
| US9127405B2 (en) | 2009-05-15 | 2015-09-08 | Imerys Minerals, Limited | Paper filler composition |
| US11732411B2 (en) | 2009-05-15 | 2023-08-22 | Fiberlean Technologies Limited | Paper filler composition |
| US9169596B2 (en) | 2009-06-18 | 2015-10-27 | Upm-Kymmene Corporation | Paper product and process for making same |
| US11155697B2 (en) | 2010-04-27 | 2021-10-26 | Fiberlean Technologies Limited | Process for the production of gel-based composite materials |
| US10633796B2 (en) | 2010-04-27 | 2020-04-28 | Fiberlean Technologies Limited | Process for the manufacture of structured materials using nano-fibrillar cellulose gels |
| US10100467B2 (en) | 2010-04-27 | 2018-10-16 | Fiberlean Technologies Limited | Process for the manufacture of structured materials using nano-fibrillar cellulose gels |
| US10053817B2 (en) | 2010-04-27 | 2018-08-21 | Fiberlean Technologies Limited | Process for the manufacture of structured materials using nano-fibrillar cellulose gels |
| WO2012052617A1 (en) * | 2010-10-18 | 2012-04-26 | Mzymes Oy | Processing of wood fibre fraction |
| EP2640893B2 (en) † | 2010-11-15 | 2021-02-24 | FiberLean Technologies Limited | Compositions |
| EP2640893B1 (en) | 2010-11-15 | 2017-08-23 | FiberLean Technologies Limited | Compositions |
| US11136721B2 (en) | 2010-11-15 | 2021-10-05 | Fiberlean Technologies Limited | Compositions |
| US10253457B2 (en) | 2010-11-15 | 2019-04-09 | Fiberlean Technologies Limited | Compositions |
| US11655594B2 (en) | 2010-11-15 | 2023-05-23 | Fiberlean Technologies Limited | Compositions |
| US10577469B2 (en) | 2015-10-14 | 2020-03-03 | Fiberlean Technologies Limited | 3D-formable sheet material |
| US11932740B2 (en) | 2015-10-14 | 2024-03-19 | Fiberlean Technologies Limited | 3D-formable sheet material |
| US11384210B2 (en) | 2015-10-14 | 2022-07-12 | Fiberlean Technologies Limited | 3-D formable sheet material |
| US11274399B2 (en) | 2016-04-05 | 2022-03-15 | Fiberlean Technologies Limited | Paper and paperboard products |
| US11732421B2 (en) | 2016-04-05 | 2023-08-22 | Fiberlean Technologies Limited | Method of making paper or board products |
| US11846072B2 (en) | 2016-04-05 | 2023-12-19 | Fiberlean Technologies Limited | Process of making paper and paperboard products |
| US10214859B2 (en) | 2016-04-05 | 2019-02-26 | Fiberlean Technologies Limited | Paper and paperboard products |
| US12203223B2 (en) | 2016-04-05 | 2025-01-21 | Fiberlean Technologies, Ltd. | Method of making paper or board products |
| US11572659B2 (en) | 2016-04-22 | 2023-02-07 | Fiberlean Technologies Limited | Compositions comprising microfibrillated cellulose and polymers and methods of manufacturing fibres and nonwoven materials therefrom |
| US10794006B2 (en) | 2016-04-22 | 2020-10-06 | Fiberlean Technologies Limited | Compositions comprising microfibrilated cellulose and polymers and methods of manufacturing fibres and nonwoven materials therefrom |
| CN110694348A (zh) * | 2019-10-28 | 2020-01-17 | 海南金海浆纸业有限公司 | 一种造纸涂料废渣解离系统及方法 |
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7887629B2 (en) | Process for the preparation of paper, paperboard and cardboard | |
| CA2443065C (en) | Method for recycling pulp rejects | |
| JP6862520B2 (ja) | セルロース由来の組成物 | |
| US7208039B2 (en) | Hyperplaty clays and their use in paper coating and filling, methods for making same, and paper products having improved brightness | |
| CN105209684B (zh) | 纸组合物 | |
| JP2020079476A (ja) | 紙填料組成物 | |
| BR112018069538B1 (pt) | Produto de papel ou papelão e método de fabricação de um produto de papel ou papelão | |
| CN105229228A (zh) | 处理微纤化纤维素的方法 | |
| US4790486A (en) | Process for preparation of paper-making hydrous silicic acid filler | |
| Anjikar | Change of filler from Talc to wet ground calcium carbonate-A noble way to reduce fiber consumption | |
| HK40000066A (en) | Cellulose-derived compositions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: ALPHA CALCIT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MUNCHOW, DIETER;REEL/FRAME:015275/0073 Effective date: 20031118 |
|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |