Method for defiberizing waste paper in a thick stock range
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United States of America Patent
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Sep 3, 1985
Grant Date -
N/A
app pub date -
Dec 6, 1982
filing date -
Dec 10, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Waste paper is defiberized within a container or receptacle in a thick stock range at a low water level. Thereafter, by further infeeding water, the obtained slurry or the like is diluted to a consistency of less than 7% while continuing the defiberizing operation. Finally, the obtained stock suspension is withdrawn through a sieve or screen located at the floor of a defiberizing container. The defiberizing container or receptacle used for performing the method possesses a lower region having a smaller diameter, above which there is located an upper region having a larger diameter.
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