Deinking of newsprint

Details Deinking of newsprint Deinking of newsprint

1980-02-19

1982-01-19

Kratz, Peter F.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 75, D21C 502

Patent

active

043115527

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 C.sub.14 to C.sub.20 alpha olefin sulfonate or a mixture of C.sub.18 alpha olefin sulfonate and a non-ionic detergent, depending upon the conditions of the deinking bath.

REFERENCES:
patent: 2061620 (1936-11-01), Downing et al.
patent: 3446696 (1969-05-01), Illingworth

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