Process for pulping waste paper containing impurities

Details Process for pulping waste paper containing impurities Process for pulping waste paper containing impurities

D - Textiles, Paper

21

C

D21C 5/02 (2006.01) D21B 1/08 (2006.01)

Patent

CA 2510463

The invention relates to a process for pulping waste paper containing impurities, used in the production of paper and board, with a feed device, a dewiring unit, and a pulping section. In order to improve pulping and thus generate less non-screenable impurities, which would make it possible to use larger proportions of waste paper with water-soluble inks, a penetration stage is included in the process before pulping.

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