Retention aids

Details Retention aids Retention aids

D - Textiles, Paper

21

H

D21H 21/10 (2006.01) D21H 17/48 (2006.01) D21H 17/53 (2006.01) D21H 23/14 (2006.01)

Patent

CA 2144972

First pass filler retention is obtained by adding a cationic fixative into a filler containing pulp slurry which is also treated using the conventional polyethyleneoxide/promoter retention system and as a result a significant increase in the first pass retention of filler is attained.

L'on obtient une rétention de charge de remplissage dès le premier passage en ajoutant un fixatif cationique à une suspesion de pâte contenant une charge de remplissage, laquelle est également traitée au moyen du système de rétention à promoteur/oxyde de polyéthylène classique. En conséquence, la rétention de la charge de remplissage au premier passage est accrue de manière notable.

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