D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 9/10 (2006.01)
Patent
CA 2669140
The present invention relates to an improved process for processing chemical cellulose pulp wherein carboxymethylcellulose (CMC) is added during the bleaching step of said pulp. The addition of CMC in this step of the bleaching process provides a pulp with improved physical, chemical and mechanical properties.
La présente invention concerne un procédé amélioré pour traiter de la pâte de cellulose chimique, de la carboxyméthylcellulose (CMC) étant ajoutée au cours de l'étape de blanchiment de ladite pâte. L'adjonction de CMC au cours de cette étape du processus de blanchiment permet d'obtenir une pâte dotée de meilleures propriétés physiques, chimiques et mécaniques.
Mainieri Rosaria Luisa
Mambrim Filho Otavio
Aracruz Celulose S.a.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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