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FI20126168L - Method for opening cellulosic fibers - Google Patents

Method for opening cellulosic fibers Download PDF

Info

Publication number
FI20126168L
FI20126168L FI20126168A FI20126168A FI20126168L FI 20126168 L FI20126168 L FI 20126168L FI 20126168 A FI20126168 A FI 20126168A FI 20126168 A FI20126168 A FI 20126168A FI 20126168 L FI20126168 L FI 20126168L
Authority
FI
Finland
Prior art keywords
fibres
fibre
opening
carrier gas
continuous operation
Prior art date
Application number
FI20126168A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20126168A7 (en
Inventor
Ismo Reilama
Kari Kovasin
Esko Turunen
Original Assignee
Metsä Fibre Oy
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 Metsä Fibre Oy filed Critical Metsä Fibre Oy
Priority to FI20126168A priority Critical patent/FI20126168L/en
Priority to PCT/FI2013/051042 priority patent/WO2014072576A1/en
Publication of FI20126168A7 publication Critical patent/FI20126168A7/en
Publication of FI20126168L publication Critical patent/FI20126168L/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/36—Explosive disintegration by sudden pressure reduction
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/007—Modification of pulp properties by mechanical or physical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

Method for opening in a continuous operation fibres containing cellulose. In the method, fiberized raw material with a lignocellulose content is used as the source material, which is in the form of a fibre suspension containing a fibre network. The fibre suspension is transferred in a continuous operation to a pressurized chamber (2, 3, 4, 5), in which the fibre network is dispersed into individual fibres or possibly fibre bunches, by mixing the fibre suspension with a carrier gas. The mixture of carrier gas and fibres or fibre bunches is brought through a rapid pressure drop to a lower pressure, in order to open the fibres. The wall of the fibres to be opened is in a swollen state, the force produced from the effect of the pressure drop on the expanding component in the lumen of the fibres against the fibre wall opens the fibres in an axial direction. The opening of the fibres of the stock promotes the processability of the stock and has an advantageous effect on the properties of the fibres.
FI20126168A 2012-11-07 2012-11-07 Method for opening cellulosic fibers FI20126168L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20126168A FI20126168L (en) 2012-11-07 2012-11-07 Method for opening cellulosic fibers
PCT/FI2013/051042 WO2014072576A1 (en) 2012-11-07 2013-11-06 Method for opening fibres containing cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20126168A FI20126168L (en) 2012-11-07 2012-11-07 Method for opening cellulosic fibers

Publications (2)

Publication Number Publication Date
FI20126168A7 FI20126168A7 (en) 2014-05-08
FI20126168L true FI20126168L (en) 2014-05-08

Family

ID=49779933

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20126168A FI20126168L (en) 2012-11-07 2012-11-07 Method for opening cellulosic fibers

Country Status (2)

Country Link
FI (1) FI20126168L (en)
WO (1) WO2014072576A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU453497B2 (en) * 1970-06-19 1974-09-18 Kimberly-Clark Corporation Lignocellulosic pulping process and products
US4600590A (en) * 1981-10-14 1986-07-15 Colorado State University Research Foundation Method for increasing the reactivity and digestibility of cellulose with ammonia
WO1998027269A1 (en) * 1996-12-17 1998-06-25 Kimberly-Clark Worldwide, Inc. Treatment process for cellulosic fibers
WO1999060027A1 (en) * 1998-05-14 1999-11-25 Kemestrie Inc. Process for preparing a high purity chemical-free microcrystalline cellulose from a chemically produced cellulose
WO2000019004A1 (en) * 1998-09-25 2000-04-06 Stake Technology Ltd. Semi alkaline steam explosion treatment of fibrous material for the production of cellulose pulp
KR100611280B1 (en) * 1998-12-30 2006-08-10 니나 페이퍼, 인크. High bulk high strength fiber material with permanent fiber form
US6627041B2 (en) * 2000-03-06 2003-09-30 Georgia-Pacific Corporation Method of bleaching and providing papermaking fibers with durable curl
US20090053800A1 (en) * 2007-08-22 2009-02-26 Julie Friend Biomass Treatment Apparatus
CA2821871C (en) * 2010-12-16 2018-02-27 Reijo K. Salminen Method and apparatus for the splitting of cellulosic fibers, methods for the treatment of fibrous pulps for a papermaking process, methods for paper drying and paper products withsplit fibers

Also Published As

Publication number Publication date
FI20126168A7 (en) 2014-05-08
WO2014072576A1 (en) 2014-05-15

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