D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 21/06 (2006.01) D21H 17/07 (2006.01) D21H 17/45 (2006.01) D21H 17/56 (2006.01) D21H 17/68 (2006.01) D21H 21/16 (2006.01) D21H 23/04 (2006.01) D21H 23/76 (2006.01)
Patent
CA 2653791
The present invention relates to a process for the production of paper which comprises: (a) providing an aqueous cellulosic suspension; (b) separately adding to the suspension: (i) a nitrogen-containing organic compound having a molecular weight less than 1,000; and (ii) a cellulose-reactive sizing agent; and (c) dewatering the obtained suspension to form paper. The invention further relates to a process in which a nitrogen-containing organic compound having a molecular weight less than 1,000 is mixed with an aqueous dispersion of a cellulose-reactive sizing agent to form a pre-mix and which premix is added to the suspension.
La présente invention concerne un procédé de fabrication de papier, comprenant les étapes consistant à : (a) utiliser une suspension cellulosique aqueuse ; (b) ajouter séparément à la suspension : (i) un composé organique contenant de l'azote ayant une masse moléculaire inférieure à 1 000 ; et (ii) un agent de collage réactif avec la cellulose ; et (c) déshydrater la suspension obtenue pour former du papier. L'invention concerne également un procédé selon lequel un composé organique contenant de l'azote ayant une masse moléculaire inférieure à 1 000 est mélangé avec une dispersion aqueuse d'un agent de collage réactif avec la cellulose pour former un pré-mélange, ledit pré-mélange étant ajouté à la suspension.
Lernbrink Agneta
Liesen Jonas
Mohlin Kristina
Risen Jeanette
Akzo Nobel N.v.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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