EP 0351655 A1 19900124 - A method for the treatment of pulp.
Title (en)
A method for the treatment of pulp.
Title (de)
Verfahren zur Zellstoffbehandlung.
Title (fr)
Procédé de traitement de pâte.
Publication
Application
Priority
FI 883491 A 19880722
Abstract (en)
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.
IPC 1-7
IPC 8 full level
C12S 3/08 (2006.01); D21C 5/00 (2006.01); D21C 9/00 (2006.01)
CPC (source: EP)
D21C 5/005 (2013.01)
Citation (search report)
- [YD] FR 2604198 A1 19880325 - DU PIN CELLULOSE [FR]
- [YD] FR 2557894 A1 19850712 - CENTRE TECH IND PAPIER [FR]
- [A] TAPPI, vol. 65, no. 6, June 1982, pages 93-96, Atlanta, Georgia, US; L. PILON et al.: "Increasing water retention of mechanical pulp by biological treatments"
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0351655 A1 19900124; EP 0351655 B1 19921125; AT E82781 T1 19921215; BR 8903649 A 19900313; CA 1339605 C 19971230; DE 68903608 D1 19930107; DE 68903608 T2 19930401; ES 2037341 T3 19930616; FI 81394 B 19900629; FI 81394 C 19930720; FI 883491 A0 19880722; FI 883491 A 19900123; GR 3006466 T3 19930621; NZ 229811 A 19910326
DOCDB simple family (application)
EP 89112331 A 19890706; AT 89112331 T 19890706; BR 8903649 A 19890724; CA 606351 A 19890721; DE 68903608 T 19890706; ES 89112331 T 19890706; FI 883491 A 19880722; GR 920402824 T 19921207; NZ 22981189 A 19890704