Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1993-05-27
1995-05-16
Jones, W. Gary
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
162 8, D21C 502
Patent
active
054157331
ABSTRACT:
The removal of inks, particularly hydrophilic flexographic inks, from a pulp fiber slurry is accomplished by use of a combination of (a) a non-ionic surfactant; (b) a fatty acid or salt thereof; and (c) a water-soluble cationic polymer having a molecular weight less than about 1,000,000 daltons, particularly a polymer derived from the reaction of epichlorohydrin and at least one diamine or the polymerization of aziridine.
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Robinson Peter M.
Skaar Thomas F.
Urushibata Hideaki
Williams Stephen P.
De Simone Mark
High Point Chemical Corp.
Jacobs Bruce F.
Jones W. Gary
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