D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
9/39, 117/47.8
D21H 17/69 (2006.01) B41M 5/52 (2006.01) D21H 19/36 (2006.01) D21H 17/07 (2006.01) D21H 17/68 (2006.01)
Patent
CA 1335947
The invention relates to a process for the production of an agent suitable for the paper and board industry and im- proving the printability of paper and board, wherein an aqueous colloidal system is prepared from at least one pig- ment and at least one water-soluble or water-swellable hydrogel containing anionic groups, said system is sub- jected to coacervation by means of a quarternary organic ammonium salt and, if appropriate, the product obtained in the coacervation is concentrated by sedimentation, centrifuging and/or filter-pressing, to the agent produced and to the use thereof in the paper and board industry.
558465
Fetherstonhaugh & Co.
Institut Fur Papier Zellstoff-Und Fasertechnik Der Technischen Universitat Graz
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