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SE8703744L - SET FOR IMPROVEMENT OF LIGNOCELLULOSAMATERIAL - Google Patents

SET FOR IMPROVEMENT OF LIGNOCELLULOSAMATERIAL

Info

Publication number
SE8703744L
SE8703744L SE8703744A SE8703744A SE8703744L SE 8703744 L SE8703744 L SE 8703744L SE 8703744 A SE8703744 A SE 8703744A SE 8703744 A SE8703744 A SE 8703744A SE 8703744 L SE8703744 L SE 8703744L
Authority
SE
Sweden
Prior art keywords
lignocellulosamaterial
improvement
compressed
fibre
fibre direction
Prior art date
Application number
SE8703744A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8703744D0 (en
SE461796B (en
Inventor
J-O Sehlin
I Bystedt
Original Assignee
Sunds Defibrator
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 Sunds Defibrator filed Critical Sunds Defibrator
Priority to SE8703744A priority Critical patent/SE461796B/en
Publication of SE8703744D0 publication Critical patent/SE8703744D0/en
Priority to SE8802014A priority patent/SE8802014D0/en
Priority to AU25250/88A priority patent/AU2525088A/en
Priority to PCT/SE1988/000458 priority patent/WO1989002951A1/en
Publication of SE8703744L publication Critical patent/SE8703744L/en
Publication of SE461796B publication Critical patent/SE461796B/en

Links

Classifications

    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/10—Physical methods for facilitating impregnation
    • 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
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Reinforced Plastic Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Paper (AREA)

Abstract

Lignocellulose material in the form of pieces with a length in the fibre direction of at least 100 mm is compressed perpendicularly to the fibre direction of the material to such a degree, that its pores substantially are compressed. The material then is allowed to expand in impregnation liquid. Thereafter the material is disintegrated to fibre bundles and/or individual fibres.
SE8703744A 1987-09-29 1987-09-29 IMPREGNATION OF LIGNOCELLULO MATERIAL IN THE FORM OF PIECE OF AT LEAST 100 MM LENGTH SE461796B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8703744A SE461796B (en) 1987-09-29 1987-09-29 IMPREGNATION OF LIGNOCELLULO MATERIAL IN THE FORM OF PIECE OF AT LEAST 100 MM LENGTH
SE8802014A SE8802014D0 (en) 1987-09-29 1988-05-31 SET FOR IMPREGNATION OF LIGNOCELLULOSAMATERIAL
AU25250/88A AU2525088A (en) 1987-09-29 1988-09-08 Method of impregnating lignocellulose material
PCT/SE1988/000458 WO1989002951A1 (en) 1987-09-29 1988-09-08 Method of impregnating lignocellulose material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8703744A SE461796B (en) 1987-09-29 1987-09-29 IMPREGNATION OF LIGNOCELLULO MATERIAL IN THE FORM OF PIECE OF AT LEAST 100 MM LENGTH

Publications (3)

Publication Number Publication Date
SE8703744D0 SE8703744D0 (en) 1987-09-29
SE8703744L true SE8703744L (en) 1989-03-30
SE461796B SE461796B (en) 1990-03-26

Family

ID=20369701

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8703744A SE461796B (en) 1987-09-29 1987-09-29 IMPREGNATION OF LIGNOCELLULO MATERIAL IN THE FORM OF PIECE OF AT LEAST 100 MM LENGTH

Country Status (3)

Country Link
AU (1) AU2525088A (en)
SE (1) SE461796B (en)
WO (1) WO1989002951A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE502555C2 (en) * 1994-03-15 1995-11-13 Ingemar Bystedt Method and apparatus for impregnating wood pieces in the production of abrasive pulp
US5533684A (en) * 1994-10-17 1996-07-09 Beloit Technologies, Inc. Wood chip strand splitter
US5597128A (en) * 1995-06-01 1997-01-28 Acrowood Corporation Machine for destructuring wood chips
AU2771199A (en) 1998-02-19 1999-09-06 International Paper Company Process for production of chemical pulp from herbaceous plants
SE525872C2 (en) * 2002-09-06 2005-05-17 Stora Enso Ab Method of producing mechanical pulp with reduced energy consumption

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK98799C (en) * 1951-03-22 1964-05-19 Asplund Arne J A Method of defibrating cellulosic lignin-containing material.
US2975096A (en) * 1957-11-18 1961-03-14 Bauer Bros Co Impregnation of wood chips

Also Published As

Publication number Publication date
WO1989002951A1 (en) 1989-04-06
AU2525088A (en) 1989-04-18
SE8703744D0 (en) 1987-09-29
SE461796B (en) 1990-03-26

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