US20050000665A1 - Method for preparing fibers contained in a pulp suspension - Google Patents

Method for preparing fibers contained in a pulp suspension Download PDF

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Publication number
US20050000665A1
US20050000665A1 US10/909,618 US90961804A US2005000665A1 US 20050000665 A1 US20050000665 A1 US 20050000665A1 US 90961804 A US90961804 A US 90961804A US 2005000665 A1 US2005000665 A1 US 2005000665A1
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United States
Prior art keywords
pulp suspension
range
precipitation product
fibers
approximately
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
Application number
US10/909,618
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English (en)
Inventor
Klaus Doelle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE2002104255 external-priority patent/DE10204255A1/de
Priority claimed from DE2002104254 external-priority patent/DE10204254A1/de
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Assigned to VOITH PAPER PATENT GMBH reassignment VOITH PAPER PATENT GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOELLE, KLAUS
Publication of US20050000665A1 publication Critical patent/US20050000665A1/en
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • 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
    • D21H17/70—Inorganic compounds forming new compounds in situ, e.g. within the pulp or paper, by chemical reaction with other substances added separately
    • 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
    • D21H17/675—Oxides, hydroxides or carbonates

Definitions

  • the present invention relates to a method for preparing fibers contained in a pulp suspension and/or for preparing coating color for coated papers.
  • PCC or GCC fillers are mass-produced products which are produced in specific manufacturing operations, which can be associated with a paper mill as a satellite plant.
  • online production of PCC has never been or is never considered in the paper industry, which can be attributed to the special process properties which are necessary for the production of PCC.
  • PCC or GCC is transported to the paper mills as a bulk material or in the form of a suspension.
  • PCC and GCC fillers are employed as coating pigments in sizes of 0.3 ⁇ m and above. Since the small particles of GCC fillers do not bring with them the necessary optical properties, TiO 2 is added. During coating, the necessary optical properties can be achieved by the use of TiO 2 , but this is a very expensive and abrasive pigment, which can be up to 10 times as expensive as the PCC or GCC pigments. Since the optical properties of the GCC and PCC pigments, which are common, at present, are limited as a result of the production methods, hitherto TiO 2 has been used in order to improve these properties.
  • the calcium hydroxide is preferably added in liquid form, known as milk of lime. This means that the water, possibly deposited in or on the pulps of the pulp suspension, is not absolutely necessary to cause the chemical reaction to start and proceed.
  • the present invention includes a method for preparing fillers contained in a pulp suspension and/or for preparing coating color for coated papers consisting of the following steps:
  • At least one of the following devices can be used: a cleaning device, in particular HC cleaner, a mixing device, in particular a static mixer, a lime slaking device, a press, in particular a screw press or belt press, a balancing reactor, a crystallizer, a further mixing device, in particular a static mixer, a CO 2 supply device or additional CO 2 recovery device, an optional CO 2 heater, an optional chemical bleaching agent addition and/or a press water tank.
  • the press water is used as dilution water on the crystallizer side.
  • the further mixing device can be used, in particular, for the fine adjustment of the pH of the pulp suspension, preferably in a range of between 6 and 8.
  • the first mixing device is used for mixing the milk of lime into the pulp suspension.
  • the cleaning device is used to prevent contamination, occurring during the process, by heavier materials such as sand, stones and pieces of metal.
  • At least some of the CO 2 needed is provided by a CO 2 recovery system.
  • it can be recovered, for example, from the flue gas of boilers or the flue gas of power plants.
  • the calcium hydroxide being added is in a liquid form, known as milk of lime. This means that the water, possibly incorporated in or on the pulps of the pulp suspension, is not absolutely necessary to cause the chemical reaction to start and proceed.
  • the solids concentration of the pulp suspension provided is chosen to be in a range from about 5% to about 60% and preferably in a range from about 10% to about 35%.
  • calcium carbonate (CaCO 3 ) In the case of, for example, loading the fibers with filler, it is possible for calcium carbonate (CaCO 3 ) to be deposited on the wetted fiber surfaces by calcium oxide (CaO) and/or calcium hydroxide (Ca(OH) 2 ) being added to the wet fiber material, and that at least a part thereof to associate with the water of the quantity of pulp.
  • the fiber material treated in this way can then be treated with carbon dioxide (CO 2 ).
  • wet fiber surfaces applies to all the wetted surfaces of the individual fibers. This also covers the case in which the fibers are loaded with calcium carbonate or with any other desired precipitation product both on their outer surface and in their interior, also known as lumen.
  • the fibers can be loaded with the filler calcium carbonate, the deposition on the wetted fiber surfaces being carried out by what is known as a “Fiber LoadingTM” process, as described as such in U.S. Pat. No. 5,223,090.
  • a “Fiber LoadingTM” process the carbon dioxide reacts with the calcium hydroxide to form water and calcium carbonate.
  • the calcium hydroxide can be supplied to the pulp suspension in liquid form or in dry form.
  • the carbon dioxide is added to the pulp suspension at a temperature in a range of from about ⁇ 15° to about 120° C. and preferably in a range from about 20° to about 90° C.
  • the paper produced can contain fillers of the order of magnitude of about 0.05 to about 5 ⁇ m, which means the optical properties of the end product are enhanced.
  • the filler can be, in particular, calcium carbonate, which occurs in nature, for example, as calcite or calc-spar, aragonite and in the rarer form vaterite.
  • the filler can be composed mainly of the form calcite, of which over 300 different crystal forms are supposed to exist.
  • the shape of the filler particles used can be, for example, rhombohedral with a respective cube size range from about 0.05 ⁇ m to about 2 ⁇ m or, for example, scalenohedral with a respective length in a range from about 0.05 ⁇ m to about 2 ⁇ m and a respective diameter in a range from about 0.01 ⁇ m to about 0.05 ⁇ m, depending on the grade of paper respectively to be produced.
  • the filler is distributed uniformly on, around and within the fibers, which means that no agglomeration of crystals in bundles is to be encountered.
  • the respective filler particle namely the crystal, is provided on the fiber, spaced apart individually or separated.
  • the filler particle covers the fiber as a result of deposition on the fiber, by which the optical properties of the end product are improved.
  • the particle size is important in order to achieve an optimum opacity. A high opacity is achieved when the color spectrum of visible light is scattered well. If the color spectrum is absorbed, then the result is the color black. If the size of the filler particles falls below 0.2 ⁇ m to 0.5 ⁇ m, the result is a tendency to transparency and higher gloss.
  • the relevant production process for producing the filler crystals can be configured as follows, for example, and can have the following variables:
  • the pulp suspension previously mixed with Ca(OH) 2 is put into a fluffer, a refiner, a disperger or the like at a consistency, or solids concentration, in the range of from about 5% to about 60%, preferably in a range from about 10% to about 35%.
  • the Ca(OH) 2 can be added in liquid or dry form.
  • the pulp suspension is treated with CO 2 .
  • the CO 2 can be added, for example, at temperatures in a range of between about ⁇ 15% and about 120° C. and preferably at temperatures in a range between about 20° and about 90° C.
  • the pulp suspension passes into the gas zone, where each individual fiber is subjected to a gas atmosphere, followed by the precipitation reaction, with which the CaCO 3 results directly.
  • the form of the CaCO 3 crystals can be, for example, rhombohedral, scalenohedral or spherical.
  • the quantity of crystals depend in particular, on the selected temperature range for the pulp suspension and on the CO 2 content and the Ca(OH) 2 content in the pulp suspension.
  • the shape of the filler particles used is, for example, rhombohedral with a respective cube size in a range from about 0.05 ⁇ m to about 2 ⁇ m, or scalenohedral with a respective length in a range from about 0.05 ⁇ m to about 2 ⁇ m and a respective diameter in a range from about 0.01 ⁇ m to about 0.5 ⁇ m, depending on the grade of paper to be produced.
  • the concentration of the pulp suspension passing the rotor disk is about 0.1% to about 50% and preferably about 35% to about 50%.
  • the pressure acting on the CO 2 feed line is in a range from about 0.1 bar to about 6 bar, and preferably in a range from about 0.5 bar to about 3 bar, in order to ensure a constant CO 2 supply to the gas ring for the desired chemical reaction.
  • the pressure has to be increased when there is a high demand for water, in order to deliver more through the hose.
  • CO 2 is a compressible gas, the quantity required can also be increased in order to ensure a complete reaction.
  • the CO 2 supply and therefore the precipitation reaction bringing forth the CaCO 3 can be controlled and/or regulated by way of controlling the pH.
  • pH values in a range from 6.0 to about 10.0, preferably a range from about pH 7.0 to about 8.5, for the final reaction of the CaCO 3 crystals.
  • the energy used for this process lies in a range between about 0.3 kWh/t and about 8 kWh/t and preferably in a range between about 0.5 kWh/t and about 4 kWh/t.
  • Dilution water can be added and mixed with the pulp suspension in order to obtain a final dilution at which the pulp suspension, with filler produced, has a consistency, or solids concentration, in a range from about 0.1% to about 16% and preferably in a range from about 2% to about 6%.
  • the pulp suspension is then exposed to the atmosphere in a machine, in a container or the next process machine.
  • the rotational speed, at the external diameter of the rotor disk, can lie in a range from about 20 m/s to 100 m/s and preferably in a range from about 40 m/s to about 60 m/s.
  • the gap between the rotor and the stator is, about 0.5 mm to about 100 mm and preferably about 25 to about 75 mL
  • the diameter of the rotor and of the stator is in a range from about 0.5 m to about 2 m.
  • the reaction time is in a range from about 0.001 min. to 1 min., and preferably in a range from about 0.1 sec to about 10 sec.
  • the method described above permits the production of individual particles, which are spaced apart equally from one another and are deposited onto the fibers, and covering the fibers in the required manner, in order to satisfy the requirements for the desired level of white or glossy paper.
  • the particle size lies in a range from about 0.05 ⁇ m to about 5 ⁇ m
  • the preferred size for the rhombohedral form of a cube lies in a range from about 0.05 ⁇ m to about 2 ⁇ m or, for a scalenohedral form, in a range from about 0.05 ⁇ m to about 2 ⁇ m with respect to the length and a range from about 0.01 ⁇ m to about 0.5 ⁇ m with respect to the diameter.
  • the particle size should expediently lie below 0.2 ⁇ m to 0.5 ⁇ m.
  • the method according to the invention can be used in particular for coating color for coated papers as well.
  • the PCC production can be part of the coating process, it being possible to form the aforementioned crystal forms.
  • the method according to one embodiment of the present invention is also applied in combined form in a coating machine and a papermaking machine. In principle, both offline and online operations are possible.
  • the possible paper grades include, amongst others:
  • FIGURE there is shown an apparatus utilizing the method, according to the present invention, implemented, for example, as a “Fiber Loadingm” system.
  • At least one of the following devices can be used for the online process: cleaning device 10 , in particular a High Consistency (HC) cleaner 10 , a mixing device 12 , in particular a static mixer 12 , a lime slaking device 14 , a press 16 , in particular a screw press 16 or a belt press 16 , a balancing reactor 18 , a crystallizer 20 , a further mixing device 22 , in a particular static mixer 22 , a CO 2 supply device 24 or an additional CO 2 recovery device, an optional CO 2 heater 26 , an optional chemical bleaching agent additions and a press water tank 28 .
  • HC High Consistency
  • Cleaning device 10 is equipped with at least one mechanism which carries out a protective function.
  • Mixing device 10 and further mixing device 22 are constructed in accordance with the apparatus disclosed in German laid-open specification DE 41 25 513 A1 for mixing suspended pulp.
  • An apparatus of this type include an introduction line for a suspended pulp (“thick stock”), which opens into the wall of a section of a pipe, in particular a curved section of a pipe, which carries thin stock.
  • the speed at which the thick stock flows out of the introduction line is preferably at least three times the speed of the thin stock flowing in the opening area.
  • the introduction line opens in the central area of the section of the pipe.
  • mixing device 10 and/or further mixing device 22 are equipped with or without a known buffer chest.
  • Control valve 28 is provided in a line to cleaning device 10 ; a lime pump 30 is provided between lime slaking device 14 and first mixing device 12 ; a press water pump 32 is provided between press water container 28 and crystallizer 20 , a mixing container 34 and also a CO 2 pump 36 are provided between CO 2 supply 24 and CO 2 heater 26 .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Inorganic Fibers (AREA)
US10/909,618 2002-02-02 2004-08-02 Method for preparing fibers contained in a pulp suspension Abandoned US20050000665A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2002104255 DE10204255A1 (de) 2002-02-02 2002-02-02 Verfahren zur Aufbereitung von in einer Faserstoffsuspension enthaltenen Fasern und/oder von Streichfarbe für gestrichene Papiere
DE10204255.1 2002-02-02
DE2002104254 DE10204254A1 (de) 2002-02-02 2002-02-02 Verfahren zur Aufbereitung von in einer Faserstoffsuspension enthaltenen Fasern
DE10204254.3 2002-02-02
PCT/EP2003/001019 WO2003066962A1 (de) 2002-02-02 2003-02-03 Verfahren zur aufbereitung von in einer faserstoffsuspension enthaltenen fasern

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/001019 Continuation WO2003066962A1 (de) 2002-02-02 2003-02-03 Verfahren zur aufbereitung von in einer faserstoffsuspension enthaltenen fasern

Publications (1)

Publication Number Publication Date
US20050000665A1 true US20050000665A1 (en) 2005-01-06

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US10/909,618 Abandoned US20050000665A1 (en) 2002-02-02 2004-08-02 Method for preparing fibers contained in a pulp suspension

Country Status (9)

Country Link
US (1) US20050000665A1 (zh)
EP (1) EP1474568A1 (zh)
JP (1) JP2005517100A (zh)
CN (1) CN100363554C (zh)
AU (1) AU2003244495A1 (zh)
CA (1) CA2474933A1 (zh)
EA (1) EA006451B1 (zh)
MX (1) MXPA04007332A (zh)
WO (1) WO2003066962A1 (zh)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060113051A1 (en) * 2003-01-24 2006-06-01 Voith Paper Patent Gmbh Method for creating a fibrous substance suspension used for producing a tissue web or hygiene web
US20070051480A1 (en) * 2003-10-15 2007-03-08 Klaus Doelle Method and apparatus for loading a fibrous stock suspension
US20070119561A1 (en) * 2004-06-09 2007-05-31 Klaus Doelle Method and apparatus of the prepartion of a fibrous stock suspension
US20070131361A1 (en) * 2003-08-05 2007-06-14 Klaus Doelle Method for charging a fiber suspension, and arrangement for carrying out said method
US20070151681A1 (en) * 2004-09-17 2007-07-05 Klaus Doelle Method and device for loading a fibrous stock suspension
US8231764B2 (en) 2009-05-15 2012-07-31 Imerys Minerals, Limited Paper filler method
US20130112360A1 (en) * 2010-06-03 2013-05-09 Nordkalk Oy Ab Process for manufacturing paper or board
WO2015001182A1 (en) * 2013-07-01 2015-01-08 Upm-Kymmene Corporation Production of cpcc with different crystal forms
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
US10253457B2 (en) 2010-11-15 2019-04-09 Fiberlean Technologies Limited Compositions
US10294371B2 (en) 2009-03-30 2019-05-21 Fiberlean Technologies Limited Process for the production of nano-fibrillar cellulose gels
US10301774B2 (en) 2009-03-30 2019-05-28 Fiberlean Technologies Limited Process for the production of nano-fibrillar cellulose suspensions
US10577469B2 (en) 2015-10-14 2020-03-03 Fiberlean Technologies Limited 3D-formable sheet material
US10760220B2 (en) 2014-04-23 2020-09-01 Hewlett-Packard Development Company, L.P. Packaging material and method for making the same
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)

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CN101208476A (zh) * 2005-07-12 2008-06-25 沃依特专利有限责任公司 用于在纤维料悬浮液中包含的纤维装填的方法
FI123392B (fi) * 2008-02-22 2013-03-28 Upm Kymmene Oyj Menetelmä kalsiumkarbonaatin saostamiseksi kuiturainaprosessin yhteydessä ja kuiturainakoneen lähestymisjärjestelmä
CA3036697C (en) * 2016-09-14 2020-03-24 Fpinnovations Method of transforming high consistency pulp fibers into pre-dispersed semi-dry and dry fibrous materials

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US4888160A (en) * 1985-12-20 1989-12-19 J.M. Huber Corporation Process for producing calcium carbonate and products thereof
US5223090A (en) * 1991-03-06 1993-06-29 The United States Of America As Represented By The Secretary Of Agriculture Method for fiber loading a chemical compound
US5323914A (en) * 1989-06-08 1994-06-28 A. Ahlstrom Corporation Method of and apparatus for separating heavy impurities from fiber suspensions in connection with pumping
US5679220A (en) * 1995-01-19 1997-10-21 International Paper Company Process for enhanced deposition and retention of particulate filler on papermaking fibers
US5833747A (en) * 1995-10-10 1998-11-10 Ecc International Ltd. Paper coating pigments and their production and use
US5921249A (en) * 1997-07-14 1999-07-13 Schweitzer-Mauduit International, Inc. High and low porosity wrapping papers for smoking articles
US6063237A (en) * 1995-04-11 2000-05-16 Ecc International Ltd. Treatment of solid containing material derived from effluent or waste from wastepaper treating process
US6143064A (en) * 1996-03-04 2000-11-07 Fp-Pigments Oy Pigment particles coated with precipitated calcium carbonate and a process for the preparation thereof
US6251222B1 (en) * 1995-06-29 2001-06-26 Metsa-Serla Filler for use in paper manufacture and procedure for producing a filler
US20010045264A1 (en) * 2000-05-26 2001-11-29 Jorg Rheims Process and a fluffer device for treatment of a fiber stock suspension
US6355138B1 (en) * 2000-02-24 2002-03-12 Voith Sulzer Paper Technology North America, Inc. Method of chemically loading fibers in a fiber suspension
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US4888160A (en) * 1985-12-20 1989-12-19 J.M. Huber Corporation Process for producing calcium carbonate and products thereof
US5323914A (en) * 1989-06-08 1994-06-28 A. Ahlstrom Corporation Method of and apparatus for separating heavy impurities from fiber suspensions in connection with pumping
US5223090A (en) * 1991-03-06 1993-06-29 The United States Of America As Represented By The Secretary Of Agriculture Method for fiber loading a chemical compound
US5679220A (en) * 1995-01-19 1997-10-21 International Paper Company Process for enhanced deposition and retention of particulate filler on papermaking fibers
US6063237A (en) * 1995-04-11 2000-05-16 Ecc International Ltd. Treatment of solid containing material derived from effluent or waste from wastepaper treating process
US6251222B1 (en) * 1995-06-29 2001-06-26 Metsa-Serla Filler for use in paper manufacture and procedure for producing a filler
US5833747A (en) * 1995-10-10 1998-11-10 Ecc International Ltd. Paper coating pigments and their production and use
US6143064A (en) * 1996-03-04 2000-11-07 Fp-Pigments Oy Pigment particles coated with precipitated calcium carbonate and a process for the preparation thereof
US5921249A (en) * 1997-07-14 1999-07-13 Schweitzer-Mauduit International, Inc. High and low porosity wrapping papers for smoking articles
US6355138B1 (en) * 2000-02-24 2002-03-12 Voith Sulzer Paper Technology North America, Inc. Method of chemically loading fibers in a fiber suspension
US20010045264A1 (en) * 2000-05-26 2001-11-29 Jorg Rheims Process and a fluffer device for treatment of a fiber stock suspension
US6413365B1 (en) * 2001-07-11 2002-07-02 Voith Paper Patent Gmbh Method of loading a fiber suspension with calcium carbonate

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060113051A1 (en) * 2003-01-24 2006-06-01 Voith Paper Patent Gmbh Method for creating a fibrous substance suspension used for producing a tissue web or hygiene web
US20070131361A1 (en) * 2003-08-05 2007-06-14 Klaus Doelle Method for charging a fiber suspension, and arrangement for carrying out said method
US20070051480A1 (en) * 2003-10-15 2007-03-08 Klaus Doelle Method and apparatus for loading a fibrous stock suspension
US20070119561A1 (en) * 2004-06-09 2007-05-31 Klaus Doelle Method and apparatus of the prepartion of a fibrous stock suspension
US20070151681A1 (en) * 2004-09-17 2007-07-05 Klaus Doelle Method and device for loading a fibrous stock suspension
US10982387B2 (en) 2009-03-30 2021-04-20 Fiberlean Technologies Limited 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
US10975242B2 (en) 2009-03-30 2021-04-13 Fiberlean Technologies Limited 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
US11970817B2 (en) 2009-05-15 2024-04-30 Fiberlean Technologies Limited Paper filler composition
US11732411B2 (en) 2009-05-15 2023-08-22 Fiberlean Technologies Limited Paper filler composition
US11377791B2 (en) 2009-05-15 2022-07-05 Fiberlean Technologies Limited Paper filler composition
US9127405B2 (en) 2009-05-15 2015-09-08 Imerys Minerals, Limited Paper filler composition
US11162219B2 (en) 2009-05-15 2021-11-02 Fiberlean Technologies Limited Paper filler composition
US10100464B2 (en) 2009-05-15 2018-10-16 Fiberlean Technologies Limited Paper filler composition
US8231764B2 (en) 2009-05-15 2012-07-31 Imerys Minerals, Limited Paper filler method
US10633796B2 (en) 2010-04-27 2020-04-28 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
US11155697B2 (en) 2010-04-27 2021-10-26 Fiberlean Technologies Limited Process for the production of gel-based composite materials
US10100467B2 (en) 2010-04-27 2018-10-16 Fiberlean Technologies Limited Process for the manufacture of structured materials using nano-fibrillar cellulose gels
US20130112360A1 (en) * 2010-06-03 2013-05-09 Nordkalk Oy Ab Process for manufacturing paper or board
US8758566B2 (en) * 2010-06-03 2014-06-24 Nordkalk Oy Ab Process for manufacturing paper or board
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
WO2015001182A1 (en) * 2013-07-01 2015-01-08 Upm-Kymmene Corporation Production of cpcc with different crystal forms
US10760220B2 (en) 2014-04-23 2020-09-01 Hewlett-Packard Development Company, L.P. Packaging material and method for making the same
US11932740B2 (en) 2015-10-14 2024-03-19 Fiberlean Technologies Limited 3D-formable sheet material
US10577469B2 (en) 2015-10-14 2020-03-03 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
US10214859B2 (en) 2016-04-05 2019-02-26 Fiberlean Technologies Limited Paper and paperboard products
US11846072B2 (en) 2016-04-05 2023-12-19 Fiberlean Technologies Limited Process of making paper and paperboard products
US10801162B2 (en) 2016-04-05 2020-10-13 Fiberlean Technologies Limited Paper and paperboard 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

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CN1625630A (zh) 2005-06-08
JP2005517100A (ja) 2005-06-09
CA2474933A1 (en) 2003-08-14
CN100363554C (zh) 2008-01-23
WO2003066962A1 (de) 2003-08-14
EA200401018A1 (ru) 2004-12-30
EP1474568A1 (de) 2004-11-10
EA006451B1 (ru) 2005-12-29
MXPA04007332A (es) 2005-05-17

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