Fremgangsmåte for å lysgjøre mekanisk masse

A method of making bleached mechanical pulps is disclosed for pulping mills having a primary and a secondary refiner. A first step (100) is to provide cellulosic materials, such as wood chips to refine into the pulp; the wood chips have an initial brightness level. A second step (102) is to provide...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Campbell, Roger O, Hamilton, Robert T, Brooks, Zeecha L, Parrish, Anthony, Haynes, Kaaren K
Format: Patent
Sprache:nor
Schlagworte:
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