Procedure for the production of pulp

Details Procedure for the production of pulp Procedure for the production of pulp

D - Textiles, Paper

21

C

195/60

D21C 3/00 (2006.01) D21B 1/02 (2006.01) D21C 5/00 (2006.01)

Patent

CA 2030836

(57) ABSTRACT OF DISCLOSURE The invention relates to a procedure for the production of mechanical pulp from a fibrous product. To reduce the refining energy, the fibrous product is subjected to an enzyme treatment in which an enzyme acts on the hemicellulose and/or cellu- lose in the fibrous product. When hydro- lytic enzymes are used, it is preferable to use oxidation-reduction chemicals to adjust the redox potential to the optimum level characteristic of each hydrolytic enzyme. In addition to reducing the refining energy consumption, the en- zyme treatment also improves the strength properties and the blue reflectance fac- tor of the pulp.

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