Paper making and fiber liberation – Processes and products – Cigarette paper
Patent
1994-01-28
1996-06-18
Lamb, Brenda A.
Paper making and fiber liberation
Processes and products
Cigarette paper
162DIG9, 209 3, 209 11, 209 44, 241DIG38, D21F 166
Patent
active
055274323
ABSTRACT:
Provided are methods of dry recovering useable fiber from paper making sludge. In the methods, paper making sludge is dewatered and dried. The dewatered and dried sludge is then fiberized using a dry fiberizing machine into a fibrous material consisting of fibers and other material including fiber fines, clay, filler material and the like. The fibers in the fibrous material are then separated out in a sifting process. The separated fibers are then ready for use in paper making without further processing. The fiber fines and filler material separated from the fibers is also collected and can be used as filler material in other composite material applications.
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Leuthold Douglas A.
Leuthold Mark A.
Advanced Fiber Technology, Inc.
Lamb Brenda A.
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