EP3981912A1 - Verfahren zur herstellung einer fasermischung - Google Patents

Verfahren zur herstellung einer fasermischung Download PDF

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Publication number
EP3981912A1
EP3981912A1 EP20201409.8A EP20201409A EP3981912A1 EP 3981912 A1 EP3981912 A1 EP 3981912A1 EP 20201409 A EP20201409 A EP 20201409A EP 3981912 A1 EP3981912 A1 EP 3981912A1
Authority
EP
European Patent Office
Prior art keywords
fiber
blend
fibers
blending
content
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.)
Pending
Application number
EP20201409.8A
Other languages
English (en)
French (fr)
Inventor
Nuno Miguel dos Santos
Peter Kuske
Jaroslav Stavik
Philippe Stephano
Markus Wiesinger
Christoph Storz
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.)
Austrocel Hallein GmbH
Original Assignee
Austrocel Hallein 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 Austrocel Hallein GmbH filed Critical Austrocel Hallein GmbH
Priority to EP20201409.8A priority Critical patent/EP3981912A1/de
Publication of EP3981912A1 publication Critical patent/EP3981912A1/de
Pending 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/08—Mechanical or thermomechanical pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/10—Mixtures of chemical and mechanical pulp

Definitions

  • Selecting the pulping method is a first step towards defining the wood-pulp fiber properties. Downstream of the pulping operation, wood-pulp fiber properties are preferably further adjusted by at least one treatment step in liquid medium prior to drying the fiber. Said treatment steps comprise for example washing, homogenizing, fractioning, enzymatic treatment, bleaching, alkaline treatment, refining and milling. The aforementioned treatment steps may be conducted as a single step or in any sequence or combination that is deemed necessary to adjust fiber properties.
  • Immersing the at least one second fiber into the brown stock allows for a maximum blending effect as the first and the second fiber are subjected to one or a sequence or a combination of the treatments of the group comprising washing, homogenizing, sorting, fractioning, enzymatic treatment, bleaching, alkaline treatment, refining and milling prior to drying.
  • the first fiber is bleached in a single stage or, preferably, in a multi-stage process, also without any intermediate drying. Once the bleaching is completed, the first fiber is dried for the first time.
  • Bleaching may preferably comprise a chlorine-free bleaching sequence, e. g. an oxygen treatment in alkaline condition, an alkaline extraction stage, an ozone stage in acid condition, a washing stage and an alkaline peroxide stage.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
EP20201409.8A 2020-10-12 2020-10-12 Verfahren zur herstellung einer fasermischung Pending EP3981912A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20201409.8A EP3981912A1 (de) 2020-10-12 2020-10-12 Verfahren zur herstellung einer fasermischung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20201409.8A EP3981912A1 (de) 2020-10-12 2020-10-12 Verfahren zur herstellung einer fasermischung

Publications (1)

Publication Number Publication Date
EP3981912A1 true EP3981912A1 (de) 2022-04-13

Family

ID=72840417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20201409.8A Pending EP3981912A1 (de) 2020-10-12 2020-10-12 Verfahren zur herstellung einer fasermischung

Country Status (1)

Country Link
EP (1) EP3981912A1 (de)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999045204A1 (en) * 1998-03-02 1999-09-10 Purely Cotton Inc. Cotton linter tissue products and method for preparing same
US20040256065A1 (en) * 2003-06-18 2004-12-23 Aziz Ahmed Method for producing corn stalk pulp and paper products from corn stalk pulp
WO2006076814A1 (en) * 2005-01-21 2006-07-27 9119-3656 Quebec Inc. Wood and non-wood plant fibers hybrid composition and uses thereof
CN100355956C (zh) * 2006-05-08 2007-12-19 宜宾丝丽雅股份有限公司 棉、木、麻、竹复合纤维素浆粕及其制造方法
EP1873301A2 (de) * 2006-06-30 2008-01-02 Weyerhaeuser Company Verfahren zur Verarbeitung von Zellstoff mit hohem Hemicelluloseanteil bei der Viskoseherstellung
WO2008141463A1 (en) * 2007-05-23 2008-11-27 Alberta Research Council Inc. Method to remove hemicellutose from cellutosic fibres using a solution of ammonia and hydrogen peroxide
US20130105097A1 (en) * 2010-07-13 2013-05-02 Olli Joutsimo Method of processing chemical pulp
US20150275432A1 (en) * 2014-03-31 2015-10-01 Api Intellectual Property Holdings, Llc Integration of non-woody biorefining at pulp and paper plants
WO2017004111A1 (en) * 2015-06-30 2017-01-05 Kimberly-Clark Worldwide, Inc. Wood-free fiber compositions and uses in paperboard packaging
US20190316293A1 (en) * 2018-04-12 2019-10-17 Mercer International Inc. Processes for improving high aspect ratio cellulose filament blends

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999045204A1 (en) * 1998-03-02 1999-09-10 Purely Cotton Inc. Cotton linter tissue products and method for preparing same
US20040256065A1 (en) * 2003-06-18 2004-12-23 Aziz Ahmed Method for producing corn stalk pulp and paper products from corn stalk pulp
WO2006076814A1 (en) * 2005-01-21 2006-07-27 9119-3656 Quebec Inc. Wood and non-wood plant fibers hybrid composition and uses thereof
CN100355956C (zh) * 2006-05-08 2007-12-19 宜宾丝丽雅股份有限公司 棉、木、麻、竹复合纤维素浆粕及其制造方法
EP1873301A2 (de) * 2006-06-30 2008-01-02 Weyerhaeuser Company Verfahren zur Verarbeitung von Zellstoff mit hohem Hemicelluloseanteil bei der Viskoseherstellung
WO2008141463A1 (en) * 2007-05-23 2008-11-27 Alberta Research Council Inc. Method to remove hemicellutose from cellutosic fibres using a solution of ammonia and hydrogen peroxide
US20130105097A1 (en) * 2010-07-13 2013-05-02 Olli Joutsimo Method of processing chemical pulp
US20150275432A1 (en) * 2014-03-31 2015-10-01 Api Intellectual Property Holdings, Llc Integration of non-woody biorefining at pulp and paper plants
WO2017004111A1 (en) * 2015-06-30 2017-01-05 Kimberly-Clark Worldwide, Inc. Wood-free fiber compositions and uses in paperboard packaging
US20190316293A1 (en) * 2018-04-12 2019-10-17 Mercer International Inc. Processes for improving high aspect ratio cellulose filament blends

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