Process for removing inks from waste paper

Details Process for removing inks from waste paper Process for removing inks from waste paper

1995-12-18

1997-07-29

Czaja, Donald E.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

D21C 502

Patent

active

056518617

ABSTRACT:
A process for removing oil-based inks and/or waterborne inks under slightly acidic, neutral or alkaline conditions by using either a flotation technique and/or a washing technique by using a novel deinking agent having a quarternized nitrogen group is provided.

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