Method for controlling quality of pulp

Details Method for controlling quality of pulp Method for controlling quality of pulp

2005-01-25

2005-01-25

Griffin, Steven P. (Department: 1731)

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With classifying, separating or screening of pulp

C162S049000

Reexamination Certificate

active

06846381

ABSTRACT:
A method for controlling the quality of pulp. Pulp produced by mechanical defibering of wood is screened to provide at least two fractions, of which the accept that has passed the screening phase is carried forward for use and the reject that has not passed the screening is removed from the screening phase. The consistency of the reject that is to be removed from the screening is measured and the consistency value thus obtained is used for controlling the defibrator to adjust the quality of the accept.

REFERENCES:
patent: 4626318 (1986-12-01), Prough et al.
patent: WO 9325752 (1999-12-01), None

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