Method for preserving the mechanical strength properties of...

Details Method for preserving the mechanical strength properties of... Method for preserving the mechanical strength properties of...

D - Textiles, Paper

21

C

D21C 9/16 (2006.01) D21C 9/10 (2006.01)

Patent

CA 2094268

A method for preserving the mechanical strength properties of chemical paper pulp comprises two processing steps using a peroxygenated reagent, the first of which is carried out in an acidic medium while the second is carried out in an alkaline one, treatment with a reducing compound being inserted therebetween.

2094268 9207139 PCTABS00110 Procédé pour la préservation des caractéristiques de résistance mécanique d'une pâte à papier chimique comportant deux étapes de traitement au moyen d'un réactif peroxygéné, la première en milieu acide et la deuxième en milieu alcalin selon lequel on intercale entre les deux étapes un traitement au moyen d'un composé réducteur.

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