Deinking formulation for flexographic inks

Details Deinking formulation for flexographic inks Deinking formulation for flexographic inks

1993-05-27

1995-05-23

Jones, W. Gary

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

252162, D21C 502

Patent

active

054178070

ABSTRACT:
The removal of hydrophilic flexographic inks from a pulp fiber slurry in a flotation or flotation/wash deinking system is accomplished by using a combination of (a) a fatty acid or salt thereof, (b) a rosin acid or salt thereof, and (c) a non-ionic or anionic surfactant along with water having a hardness of about 80 to 500 ppm Ca.sup.+2.

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