Deinking of newsprint

Details Deinking of newsprint Deinking of newsprint

D - Textiles, Paper

21

C

9/1

D21C 5/02 (2006.01)

Patent

CA 1144310

ABSTRACT Waste newsprint is defibered in an aqueous bath to which is added a deinking agent. The resulting slurry or pulp is rinsed, drained and formed into paper sheets. The deinking agent is a C14 to C20 alpha olefin sulfonate or a mixture of C18 alpha olefin sulfonate and a non-ionic detergent, depending upon the conditions of the deinking bath.

343779

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