ATE82781T1 - METHOD OF PULP TREATMENT. - Google Patents

METHOD OF PULP TREATMENT.

Info

Publication number
ATE82781T1
ATE82781T1 AT89112331T AT89112331T ATE82781T1 AT E82781 T1 ATE82781 T1 AT E82781T1 AT 89112331 T AT89112331 T AT 89112331T AT 89112331 T AT89112331 T AT 89112331T AT E82781 T1 ATE82781 T1 AT E82781T1
Authority
AT
Austria
Prior art keywords
pulp
enzyme
dissolving
drainability
hemicellulose
Prior art date
Application number
AT89112331T
Other languages
German (de)
Inventor
Sakari Karsila
Ilkka Kruus
Outi Puuppo
Original Assignee
Genencor Int Europ
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 Genencor Int Europ filed Critical Genencor Int Europ
Application granted granted Critical
Publication of ATE82781T1 publication Critical patent/ATE82781T1/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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Materials For Medical Uses (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Non-Adjustable Resistors (AREA)
  • Noodles (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

The invention relates to a method for improving the drainability of mechanical pulp or pulp mainly containing mechanical pulp by means of enzyme treatment by adding to the pulp at least one hemicellulose-dissolving enzyme or an enzyme preparation containing at least one hemicellulose-dissolving enzyme and being substantially free from cellulose-dissolving enzymes. The enzyme treatment according to the invention not only improve the drainability of the pulp but also retains the strength properties of the pulp since no cellulose-dissolving enzymes are used.
AT89112331T 1988-07-22 1989-07-06 METHOD OF PULP TREATMENT. ATE82781T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI883491A FI81394C (en) 1988-07-22 1988-07-22 FOERFARANDE FOER BEHANDLING AV MASSA MED ENZYMER
EP89112331A EP0351655B1 (en) 1988-07-22 1989-07-06 A method for the treatment of pulp

Publications (1)

Publication Number Publication Date
ATE82781T1 true ATE82781T1 (en) 1992-12-15

Family

ID=8526856

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89112331T ATE82781T1 (en) 1988-07-22 1989-07-06 METHOD OF PULP TREATMENT.

Country Status (9)

Country Link
EP (1) EP0351655B1 (en)
AT (1) ATE82781T1 (en)
BR (1) BR8903649A (en)
CA (1) CA1339605C (en)
DE (1) DE68903608T2 (en)
ES (1) ES2037341T3 (en)
FI (1) FI81394C (en)
GR (1) GR3006466T3 (en)
NZ (1) NZ229811A (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604198B1 (en) * 1986-09-22 1989-07-07 Du Pin Cellulose PROCESS FOR TREATING A PAPER PULP WITH AN ENZYMATIC SOLUTION.
FI87372C (en) * 1989-03-30 1992-12-28 Genencor Int Europ Process for making fluff pulp with improved tearability
FI92414B (en) * 1989-11-27 1994-07-29 Enso Gutzeit Oy Process for mass production
DK80390D0 (en) * 1990-03-29 1990-03-29 Novo Nordisk As
US5837515A (en) * 1990-05-16 1998-11-17 Alko-Yhtiot Oy Enzyme preparations and methods for their production
GB9018426D0 (en) * 1990-08-22 1990-10-03 Sandoz Ltd Improvements in or relating to novel compounds
EP0486125A1 (en) * 1990-11-13 1992-05-20 JAPAN PULP & PAPER RESEARCH INSTITUTE, INC. Lignocellulolytic composition, process of producing the same and use of the same
US5616215A (en) * 1991-04-19 1997-04-01 Novo Nordisk A/S Method of making paper from pulp treated with lipase and an aluminum salt
US5169497A (en) * 1991-10-07 1992-12-08 Nalco Chemical Company Application of enzymes and flocculants for enhancing the freeness of paper making pulp
FI92500C (en) * 1993-03-03 1994-11-25 Valtion Teknillinen Process for producing mechanical pulp
US7816129B2 (en) 1994-07-29 2010-10-19 Ab Enzymes Gmbh Production and secretion of proteins of bacterial origin in filamentous fungi
US6300114B1 (en) 1994-07-29 2001-10-09 Rohm Enzyme Finland Oy Sequences of xylanase and xylanase expression vectors
US5871730A (en) * 1994-07-29 1999-02-16 Universite De Sherbrooke Thermostable xylanase DNA, protein and methods of use
US5935836A (en) * 1994-07-29 1999-08-10 Rohm Enzyme Finland Oy Actinomadura xylanase sequences and methods of use
US5770012A (en) * 1994-11-18 1998-06-23 P. H. Glatfelter Co. Process for treating paper machine stock containing bleached hardwood pulp with an enzyme mixture to reduce vessel element picking
US5725732A (en) * 1994-11-18 1998-03-10 P. H. Glatfelter Company Process for treating hardwood pulp with an enzyme mixture to reduce vessel element picking
GB2296513B (en) * 1994-12-24 1998-07-29 Ciba Geigy Ag Paper treatment
US5961735A (en) * 1995-06-21 1999-10-05 North Carolina State University Method of cleaning papermaking felts with enzymes
WO1998006892A1 (en) * 1996-08-16 1998-02-19 International Paper Company Enzymatic freeness enhancement
US6939437B1 (en) 1999-11-19 2005-09-06 Buckman Laboratories International, Inc. Paper making processes using enzyme and polymer combinations
WO2004101889A2 (en) * 2003-05-06 2004-11-25 Novozymes North America, Inc. Use of hemicellulase composition in mechanical pulp production
CN104631175B (en) * 2015-02-09 2016-06-01 绍兴文理学院 The preparation method of a kind of short route jute fibre element
CN104631178B (en) * 2015-02-09 2016-08-24 绍兴文理学院 A kind of deep purification method of raw cellulose
CN104631176B (en) * 2015-02-09 2016-06-01 绍兴文理学院 The preparation method of a kind of jute fibre element

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2557894B1 (en) * 1984-01-10 1986-12-12 Centre Tech Ind Papier PROCESS FOR THE TREATMENT OF PAPER PULP WITH A FIBRILLATION ENZYMATIC SOLUTION AND PULPES THUS PROCESSED.
FR2604198B1 (en) * 1986-09-22 1989-07-07 Du Pin Cellulose PROCESS FOR TREATING A PAPER PULP WITH AN ENZYMATIC SOLUTION.

Also Published As

Publication number Publication date
EP0351655A1 (en) 1990-01-24
FI883491A0 (en) 1988-07-22
GR3006466T3 (en) 1993-06-21
NZ229811A (en) 1991-03-26
FI81394C (en) 1993-07-20
CA1339605C (en) 1997-12-30
DE68903608D1 (en) 1993-01-07
FI81394B (en) 1990-06-29
DE68903608T2 (en) 1993-04-01
BR8903649A (en) 1990-03-13
FI883491A (en) 1990-01-23
EP0351655B1 (en) 1992-11-25
ES2037341T3 (en) 1993-06-16

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee