Process for the production of paper and board
AssigneeAkzo Nobel Chemicals International B.V.
InventorPatrik Simonson
Life of this patent
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Abstract
The present invention relates to a process for the production of paper and board which comprises: (a) introducing one or more fillers, one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into an aqueous suspension comprising cellulosic fibres; and (c) dewatering the obtained suspension. The present invention also relates to a process for the production of a filler composition which comprises: (a) introducing one or more fillers,one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition; (b) introducing by means of a pump the filler composition into a storage tank.
Claims23
A process for the production of paper and board which comprises:
- (a) introducing one or more fillers, one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition;
- (b) introducing by means of a pump the filler composition into an aqueous suspension comprising cellulosic fibres;
- and
- (c) dewatering the obtained suspension.
A process for the production of a filler composition which comprises:
- (a) introducing one or more fillers, one or more anionic polysaccharides and one or more cationic agents into a mixing zone to form a filler composition;
- (b) introducing by means of a pump the filler composition into a storage tank.
Dependencies are inferred from the claim text.