Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1993-07-02
1995-04-11
Jones, W. Gary
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
162 4, 162 6, D21C 502
Patent
active
054054958
ABSTRACT:
A method for deinking of repulped xerographic paper comprising adding an organic polymeric particulate and a substantially water insoluble organic ester to a repulped aqueous slurry containing xerographic toner particles in an amount sufficient to at least partially agglomerate the xerographic toner particles within the slurry to larger particle sizes; and removing the xerographic toner particles from the slurry by one or more liquid/solid separation techniques.
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Seldin, Ira, "Xerographic Copy Recycling", Pulping Conference 1985, TAPPI Proceedings, pp. 303-310.
Quick, T. H. and Hodgson, K. T., "Xerography Deinking-A Fundamental Approach", 1985 Pulping Conference, TAPPI Proceedings, pp. 561-566.
Lapoint et al., "The Deinking of Xerographic Paper by Flotation", 1988 Pulping Conference, TAPPI Proceedings, pp. 81-94.
Cosper David R.
Tubergen Karen R.
De Simone Mark
Drake James J.
Jones W. Gary
Miller Robert A.
Nalco Chemical Company
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