Method for recovering fiber from printed wastepaper

Details Method for recovering fiber from printed wastepaper Method for recovering fiber from printed wastepaper

1996-02-14

1998-02-03

Czaja, Donald E.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 5, 162 55, D21C 502

Patent

active

057140405

ABSTRACT:
There is disclosed a method for recovering fiber from printed wastepaper by loading the wastepaper and water into a continuous batch fiber recovery apparatus. The wastepaper and water are agitated within the apparatus to form a pulp fiber slurry while introducing a deinking/agglomerating composition at predetermined time intervals to cause the ink particles associated with the printed wastepaper to separate from the paper and agglomerate to form large ink particles. The agglomerated ink particles are then removed from the pulp fiber slurry using separation techniques.

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Article entitled "Laundering Recovered Paper: A Different Way"/Progress in Paper Recycling, by Daniel B. Mulligan, Feb. 1, 1995.
Article entitled "Laundry Recycling System Shows Promise for Hard-to-Handle Grades"/Pulp & Paper, by Kelly H. Ferguson, Feb. 1, 1995.
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Brochure providing an example of a "MODUScreen", available from Alhstrom Kamyr, Inc., (not enclosed).

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