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US20070151681A1 - Method and device for loading a fibrous stock suspension - Google Patents

Method and device for loading a fibrous stock suspension Download PDF

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Publication number
US20070151681A1
US20070151681A1 US11/677,832 US67783207A US2007151681A1 US 20070151681 A1 US20070151681 A1 US 20070151681A1 US 67783207 A US67783207 A US 67783207A US 2007151681 A1 US2007151681 A1 US 2007151681A1
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US
United States
Prior art keywords
accordance
fiber
carbon dioxide
stock suspension
fibrous stock
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
US11/677,832
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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 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
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Assigned to VOITH PATENT GMBH reassignment VOITH PATENT GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DOELLE, KLAUS
Publication of US20070151681A1 publication Critical patent/US20070151681A1/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
    • 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
    • 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
    • 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
    • D21H21/50—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 characterised by form
    • D21H21/52—Additives of definite length or shape
    • 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

Definitions

  • the invention relates to a method for loading of a fibrous stock suspension with calcium carbonate.
  • a method for loading a fibrous stock suspension is known from DE 101 07 448 A1 wherein the fibrous stock suspension is fed into a crystallizer and is treated in said crystallizer by shear forces in order to break down larger fiber agglomerates into smaller ones, or even into individual fibers, and wherein the crystallizer is utilized at the same time as reactor for the chemical precipitation reaction.
  • the present invention provides a method including the following process steps: adding of calcium hydroxide in liquid or dry form, or of calcium oxide into the fibrous stock suspension; adding of carbon dioxide into the fibrous stock suspension; and precipitation of calcium carbonate from the calcium hydroxide through the carbon dioxide in a pressurized pressure vessel.
  • the current invention describes a method for the production of fiber loaded precipitated calcium carbonate (FLPCC), wherein the fiber raw material that is to be loaded may include recycling paper, DIP (deinked paper), secondary fibers, bleached or unbleached pulp, mechanical pulp, bleached or unbleached sulfate pulp, broke, linen, cotton, and/or hemp fibers (predominantly cigarette paper) and/or any paper raw material which can be utilized on a paper machine.
  • DIP deinked paper
  • secondary fibers bleached or unbleached pulp
  • mechanical pulp bleached or unbleached sulfate pulp
  • broke linen, cotton, and/or hemp fibers (predominantly cigarette paper) and/or any paper raw material which can be utilized on a paper machine.
  • hemp fibers predominantly cigarette paper
  • the currently used filler material is replaced, supplemented or activated by the filler material which is produced by the fiber loading process technology.
  • Activation means that the already existing filler particles are superimposed by the fiber loading process or serve as a crystallization nucleus, thereby providing improved optical characteristics.
  • the method is also especially suitable if paper which is printed with flexo-ink (water based printing ink)—especially news print—is used for the production of the fiber raw material.
  • flexo-ink water based printing ink
  • the print particles including flexo-ink cannot be removed through a floatation process, or can be removed only with great difficulty.
  • fillers and foreign substances such as printing ink, contaminants, stickies, etc., which are inherently present in DIP papers into the fiber loading-crystallization process wherein the already present filler particles are being superimposed by the fiber loading process, or serve as crystallization nucleus.
  • the method is independent of whether or not the fiber raw material contains a filler that was produced by a precipitation process in a batch reactor or by a refining process, or whether talcum, titanium dioxide (TiO 2 ), silicon, etc., are used.
  • the fiber loading technology permits precipitation of a filler—especially calcium carbonate—that is uniformly distributed and adhered to, in and between the fibers directly in the stock preparation of a paper mill.
  • the range of application of the filler produced with the fiber loading combination process technology extends to applications within the paper production of all paper grades, including cigarette papers, filter papers, kraft sack paper grades and cardboard and packaging papers including those with which recycling paper types and DIP papers are used.
  • Packaging papers of this type can have a filler content of between 1 and 60% and/or can possess a white liner having a filler content of between 1 and 60%.
  • the loaded and manufactured paper grades can be produced on a paper machine from a recycling paper, deinked paper (DIP), secondary fibers, bleached or unbleached pulp, mechanical pulp, bleached or unbleached sulfate pulp, broke, linen, cotton, hemp fibers (predominantly for cigarette paper), and/or any paper raw material, irrespective of whether or not the end product contains a filler.
  • DIP deinked paper
  • secondary fibers bleached or unbleached pulp
  • mechanical pulp bleached or unbleached sulfate pulp
  • broke linen, cotton, hemp fibers (predominantly for cigarette paper)
  • any paper raw material irrespective of whether or not the end product contains a filler.
  • Fibrous stock produced according to the fiber loading combination process technology generally possesses a superior dewatering characteristic compared to a fibrous stock produced according to another method; the dewatering capacity is between 5 to 100 ml CSF or 0.2 to 15° SR, depending upon the required freeness.
  • the optical characteristics of the paper suspension and the raw material can be improved by 0.5 to 30 lightness points, preferably by 1 to 25 lightness points—predominantly through masking of the contaminants such as ink particles and dirt.
  • non-activated fiber stock components for example non-converted calcium hydroxide, PCC (precipitated calcium carbonate), GCC (ground calcium carbonate), lime components, etc. which are embedded in the recycled paper raw material or in the DIP-pulp occurs.
  • aqueous fiber raw material especially aqueous paper raw material, having a consistency of between 1 and 20% of fibrous stock content is fed into the pressure vessel, wherein LC-fiber stock material (low consistency) is used at a content of between 1 and 6%, MC-fiber stock material (medium consistency) is used at a content of between 6 and 10%, and HC-fiber stock material (high consistency) is used at a content of between 10 and 20%.
  • LC-fiber stock material low consistency
  • MC-fiber stock material medium consistency
  • HC-fiber stock material high consistency
  • aqueous fiber raw material is diluted to a fibrous stock suspension having a consistency of between 0.1 and 20%, especially diluted to a consistency of between 2 and 18%.
  • the pressure vessel is closed by a sluice after supplying the aqueous fiber stock material and/or the dilution water.
  • the calcium hydroxide or the calcium oxide is mixed into the aqueous fiber stock in a range of between 0.1 and 60% of the existing solids content of the volume of the dry fiber stock.
  • the pH value is preferably between 6 and 11, especially between 6.5 and 10.5.
  • the reaction time is between 0.0005 and 30 minutes, especially in a range of between 0.05 and 10 minutes.
  • the calcium carbonate can be precipitated advantageously through adding the carbon dioxide in a pressure range of between 0 and 15 bar, especially between 0 and 6 bar.
  • One design form of the method provides that the fibrous stock suspension and/or the carbon dioxide is heated by way of process water or dilution water or steam during its dissolution in the fibrous stock suspension, or by way of the fiber loading process or through introducing heat energy from the outside, especially by way of steam energy or electrical energy.
  • the carbon dioxide can be added prior to, during or after the addition of the carbon dioxide or the calcium hydroxide or the calcium oxide.
  • the pressure vessel is opened by a valve or a sluice before the fiber loading reaction, or after the reaction.
  • the energy expenditure for the precipitation of the loaded fibers is between 0.3 and 8 kWh/t, especially between 0.5 and 4 kWh/t, if no refiner for the fiber stock is used.
  • a refiner may also be installed before the vessel if the fiber pulp is already sufficiently dissolved. In an alternative embodiment of the current invention the refiner may also be installed downstream from the pressure vessel.
  • the process temperature is preferably between ⁇ 15° and 120°, especially between 20 and 90° C.
  • crystals having dimensions preferably of between 0.05 and 5 ⁇ m, especially between 0.3 and 2.5 ⁇ m can be produced.
  • Static and/or moving, especially rotating, mixing elements can be utilized for the purpose of mixing the fibrous stock suspension.
  • the process is preferably conducted in a pressure range of between 0 and 15 bar, especially between 0 and 6 bar.
  • the present invention also relates to a device for the implementation of the method.
  • the device is characterized in that it includes an infeed device for the supply of the fiber raw material, as well as a pressure vessel.
  • the pressure vessel includes a sluice or a valve through which the fiber raw material is fed for the production of the fibrous stock suspension with loaded fibers.
  • the pressure vessel can be equipped with inlets for dilution or press water, for calcium oxide or calcium hydroxide and for carbon dioxide.
  • the pressure vessel includes a rotor for mixing the fibrous stock suspension.
  • FIG. 1 illustrates a device for loading a fibrous stock suspension including cellulose fibers with calcium carbonate according to the present invention.
  • a fiber raw material which is supplied to a pressure vessel 2 through a supply pipe 1 .
  • a sluice 3 which is opened and closed via a motor driven closing mechanism is located between the supply pipe 1 and the pressure vessel 2 .
  • Dilution water, calcium hydroxide in liquid or solid form or calcium oxide or chemicals are added through additional supply line connections 4 , 5 , 6 so that, if the raw fiber stock was initially supplied to a fill level 7 , a filling of the pressure container 2 above this fill level 7 is formed, including the calcium hydroxide which serves the fiber loading process, together with the water and/or the dilution water in which it is dissolved.
  • a rotor 8 In order to mix the fiber raw stock with the calcium hydroxide so that this penetrates into the fibers, a rotor 8 is supplied which includes a propeller wheel or similar device at the bottom and/or at a higher level of the pressure container 2 . The rotor 8 is driven via a motor 9 .
  • At least one inlet 10 can be provided in the lower area of the pressure container 2 for carbon dioxide through which the calcium hydroxide reacts to calcium carbonate. After the fiber raw material has been dissolved and loaded with calcium carbonate it is routed to a machine for the production of a fibrous web, through a discharge pipe 12 which is equipped with a valve 11 .
  • a measuring location 13 can be provided on pressure container 2 in order to measure the chemical composition of the content in said pressure container 2 , especially to measure the pH value.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
US11/677,832 2004-09-17 2007-02-22 Method and device for loading a fibrous stock suspension Abandoned US20070151681A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004045089.7 2004-09-17
DE102004045089A DE102004045089A1 (de) 2004-09-17 2004-09-17 Verfahren und Vorrichtung zum Beladen einer Faserstoffsuspension
PCT/EP2005/008851 WO2006032333A1 (fr) 2004-09-17 2005-08-16 Procede et dispositif de charge d'une suspension de matiere fibreuse

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/008851 Continuation WO2006032333A1 (fr) 2004-09-17 2005-08-16 Procede et dispositif de charge d'une suspension de matiere fibreuse

Publications (1)

Publication Number Publication Date
US20070151681A1 true US20070151681A1 (en) 2007-07-05

Family

ID=34979775

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/677,832 Abandoned US20070151681A1 (en) 2004-09-17 2007-02-22 Method and device for loading a fibrous stock suspension

Country Status (7)

Country Link
US (1) US20070151681A1 (fr)
EP (1) EP1792008A1 (fr)
CN (1) CN101014740A (fr)
BR (1) BRPI0514926A (fr)
CA (1) CA2580697A1 (fr)
DE (1) DE102004045089A1 (fr)
WO (1) WO2006032333A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100212853A1 (en) * 2009-02-02 2010-08-26 John Klungness Fiber loading improvements in papermaking
WO2011131843A1 (fr) * 2010-04-22 2011-10-27 Nordkalk Oy Ab Utilisation d'eau acide dans la fabrication de papier
US20130112360A1 (en) * 2010-06-03 2013-05-09 Nordkalk Oy Ab Process for manufacturing paper or board
US20130126116A1 (en) * 2010-08-20 2013-05-23 Upm-Kymmene Corporation Method and a system for precipitation of calcium carbonate and a product comprising calcium carbonate
WO2014016469A1 (fr) * 2012-07-27 2014-01-30 Upm-Kymmene Corporation Procédé et système pour empêcher le noircissement d'une calandre
WO2015170262A1 (fr) 2014-05-08 2015-11-12 Stora Enso Oyj Procédé de fabrication de bande et de matériau composite de fibre thermoplastique
WO2017205113A1 (fr) * 2016-05-23 2017-11-30 Gpcp Ip Holdings Llc Déliage à l'air dissous d'une feuille de soie
US10487452B1 (en) * 2017-01-26 2019-11-26 Kimberly-Clark Worldwide, Inc. Treated fibers and fibrous structures comprising the same
WO2021191277A1 (fr) * 2020-03-24 2021-09-30 Delfortgroup Ag Papier d'emballage pour articles à fumer avec formation de cendres améliorée

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006011539A1 (de) * 2006-03-14 2007-09-20 Voith Patent Gmbh Verfahren zum Beladen von in einer Faserstoffsuspension enthaltenen Fasern mit Füllstoff
DE102007007295A1 (de) * 2007-02-14 2008-08-21 Voith Patent Gmbh Verfahren zum Bilden von Füllstoffen, insbesondere Calciumcarbonat in einer Faserstoffsuspension
DE102007051665A1 (de) * 2007-10-30 2009-05-07 Voith Patent Gmbh Verfahren zur Bildung von Calciumcarbonat in einer Faserstoffsuspension
DE102007051664A1 (de) * 2007-10-30 2009-05-07 Voith Patent Gmbh Verfahren zur Bildung von Calciumcarbonat in einer Faserstoffsuspension II
DE102007057846A1 (de) 2007-11-30 2009-06-04 Voith Patent Gmbh Verfahren zur Entfernung von Farbpartikeln, insbsondere Druckfarbenpartikel aus einem Faserstoff
DE102008000047A1 (de) 2008-01-14 2009-07-16 Voith Patent Gmbh Verfahren zur Erhöhung des Weißgrades einer füllstoffhaltigen Fasersuspension

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5674360A (en) * 1995-06-01 1997-10-07 International Paper Company Method and apparatus for steam packing/presteaming a batch digester
US6355138B1 (en) * 2000-02-24 2002-03-12 Voith Sulzer Paper Technology North America, Inc. Method of chemically loading fibers in a fiber suspension
US6413365B1 (en) * 2001-07-11 2002-07-02 Voith Paper Patent Gmbh Method of loading a fiber suspension with calcium carbonate
US6458241B1 (en) * 2001-01-08 2002-10-01 Voith Paper, Inc. Apparatus for chemically loading fibers in a fiber suspension
US6471825B1 (en) * 1998-08-06 2002-10-29 Voith Sulzer Paper Technology North Amrica, Inc. Method for deflocculating and chemically loading fibers in a fiber suspension with calcium carbonate
US6533895B1 (en) * 2000-02-24 2003-03-18 Voith Sulzer Paper Technology North America, Inc. Apparatus and method for chemically loading fibers in a fiber suspension
US6537425B2 (en) * 2000-07-13 2003-03-25 Voith Paper Patent Gmbh Process for loading fibers with calcium carbonate
US6599390B2 (en) * 2000-07-13 2003-07-29 Voith Paper Patent Gmbh Process for loading fibers with calcium carbonate in a plurality of reactors
US20050000665A1 (en) * 2002-02-02 2005-01-06 Klaus Doelle Method for preparing fibers contained in a pulp suspension
US6939438B2 (en) * 2001-07-11 2005-09-06 Voith Paper Patent Gmbh Apparatus for loading fibers in a fiber suspension with calcium carbonate
US7169258B2 (en) * 2000-05-26 2007-01-30 Voith Paper Patent Gmbh Process and a fluffer device for treatment of a fiber stock suspension

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833464A (en) * 1973-02-16 1974-09-03 Owens Illinois Inc Method of decolorizing paper mill effluent liquid
US5096539A (en) * 1989-07-24 1992-03-17 The Board Of Regents Of The University Of Washington Cell wall loading of never-dried pulp fibers
FI100729B (fi) * 1995-06-29 1998-02-13 Metsae Serla Oy Paperinvalmistuksessa käytettävä täyteaine ja menetelmä täyteaineen va lmistamiseksi
FI100670B (fi) * 1996-02-20 1998-01-30 Metsae Serla Oy Menetelmä täyteaineen lisäämiseksi selluloosakuituperäiseen massaan
US6251356B1 (en) * 1999-07-21 2001-06-26 G. R. International, Inc. High speed manufacturing process for precipitated calcium carbonate employing sequential perssure carbonation
US7048900B2 (en) * 2001-01-31 2006-05-23 G.R. International, Inc. Method and apparatus for production of precipitated calcium carbonate and silicate compounds in common process equipment
DE10120635A1 (de) * 2001-04-27 2002-10-31 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Beladen von Fasern mit Calciumcarbonat
US20040108081A1 (en) * 2002-12-09 2004-06-10 Specialty Minerals (Michigan) Inc. Filler-fiber composite

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5674360A (en) * 1995-06-01 1997-10-07 International Paper Company Method and apparatus for steam packing/presteaming a batch digester
US6471825B1 (en) * 1998-08-06 2002-10-29 Voith Sulzer Paper Technology North Amrica, Inc. Method for deflocculating and chemically loading fibers in a fiber suspension with calcium carbonate
US6355138B1 (en) * 2000-02-24 2002-03-12 Voith Sulzer Paper Technology North America, Inc. Method of chemically loading fibers in a fiber suspension
US7264689B2 (en) * 2000-02-24 2007-09-04 Voith Sulzer Paper Technology North America, Inc. Method of chemically loading fibers in a fiber suspension
US20020088566A1 (en) * 2000-02-24 2002-07-11 Voith Sulzer Paper Technology North America, Inc. Method of chemically loading fibers in a fiber suspension
US6533895B1 (en) * 2000-02-24 2003-03-18 Voith Sulzer Paper Technology North America, Inc. Apparatus and method for chemically loading fibers in a fiber suspension
US7169258B2 (en) * 2000-05-26 2007-01-30 Voith Paper Patent Gmbh Process and a fluffer device for treatment of a fiber stock suspension
US6599390B2 (en) * 2000-07-13 2003-07-29 Voith Paper Patent Gmbh Process for loading fibers with calcium carbonate in a plurality of reactors
US6537425B2 (en) * 2000-07-13 2003-03-25 Voith Paper Patent Gmbh Process for loading fibers with calcium carbonate
US6881298B2 (en) * 2000-07-13 2005-04-19 Voith Paper Patent Gmbh Process for loading fibers with calcium carbonate in a plurality of reactors
US6458241B1 (en) * 2001-01-08 2002-10-01 Voith Paper, Inc. Apparatus for chemically loading fibers in a fiber suspension
US6939438B2 (en) * 2001-07-11 2005-09-06 Voith Paper Patent Gmbh Apparatus for loading fibers in a fiber suspension with calcium carbonate
US6413365B1 (en) * 2001-07-11 2002-07-02 Voith Paper Patent Gmbh Method of loading a fiber suspension with calcium carbonate
US20050000665A1 (en) * 2002-02-02 2005-01-06 Klaus Doelle Method for preparing fibers contained in a pulp suspension

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100212853A1 (en) * 2009-02-02 2010-08-26 John Klungness Fiber loading improvements in papermaking
US8808503B2 (en) * 2009-02-02 2014-08-19 John Klungness Fiber loading improvements in papermaking
US20140360693A1 (en) * 2009-02-02 2014-12-11 John Klungness Fiber loading improvements in papermaking
WO2011131843A1 (fr) * 2010-04-22 2011-10-27 Nordkalk Oy Ab Utilisation d'eau acide dans la fabrication de papier
CN103097607A (zh) * 2010-04-22 2013-05-08 诺德卡尔克有限公司 酸性水在造纸中的用途
US8906201B2 (en) 2010-04-22 2014-12-09 Nordkalk Oy Ab Use of acidic water in the manufacture of paper
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
US9051689B2 (en) * 2010-08-20 2015-06-09 Upm-Kymmene Corporation Method for precipitating calcium carbonate
US20130126116A1 (en) * 2010-08-20 2013-05-23 Upm-Kymmene Corporation Method and a system for precipitation of calcium carbonate and a product comprising calcium carbonate
WO2014016469A1 (fr) * 2012-07-27 2014-01-30 Upm-Kymmene Corporation Procédé et système pour empêcher le noircissement d'une calandre
WO2015170262A1 (fr) 2014-05-08 2015-11-12 Stora Enso Oyj Procédé de fabrication de bande et de matériau composite de fibre thermoplastique
EP3140455A4 (fr) * 2014-05-08 2018-01-10 Stora Enso Oyj Procédé de fabrication de bande et de matériau composite de fibre thermoplastique
WO2017205113A1 (fr) * 2016-05-23 2017-11-30 Gpcp Ip Holdings Llc Déliage à l'air dissous d'une feuille de soie
US10519607B2 (en) 2016-05-23 2019-12-31 Gpcp Ip Holdings Llc Dissolved air de-bonding of a tissue sheet
US11248346B2 (en) 2016-05-23 2022-02-15 Gpcp Ip Holdings Llc Dissolved air de-bonding of a tissue sheet
US11248345B2 (en) 2016-05-23 2022-02-15 Gpcp Ip Holdings Llc Dissolved air de-bonding of a tissue sheet
US10487452B1 (en) * 2017-01-26 2019-11-26 Kimberly-Clark Worldwide, Inc. Treated fibers and fibrous structures comprising the same
US10563355B1 (en) * 2017-01-26 2020-02-18 Kimberly-Clark Worldwide, Inc. Treated fibers and fibrous structures comprising the same
WO2021191277A1 (fr) * 2020-03-24 2021-09-30 Delfortgroup Ag Papier d'emballage pour articles à fumer avec formation de cendres améliorée
US20230136404A1 (en) * 2020-03-24 2023-05-04 Delfortgroup Ag Wrapper Paper for Smoking Articles, with Improved Ash Formation
JP2023520152A (ja) * 2020-03-24 2023-05-16 デルフォルトグループ、アクチエンゲゼルシャフト 灰の形成が改善された喫煙具用包装紙

Also Published As

Publication number Publication date
WO2006032333A1 (fr) 2006-03-30
DE102004045089A1 (de) 2006-03-23
CA2580697A1 (fr) 2006-03-30
BRPI0514926A (pt) 2008-07-01
EP1792008A1 (fr) 2007-06-06
CN101014740A (zh) 2007-08-08

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Effective date: 20070302

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