Method of controlling curl employing inline headbox edge flow co

Details Method of controlling curl employing inline headbox edge flow co Method of controlling curl employing inline headbox edge flow co

1997-01-21

1998-11-10

Silverman, Stanley S.

Paper making and fiber liberation

Processes and products

With measuring, inspecting and/or testing

162263, 162336, 162338, 162258, D21F 1100, D21G 900

Patent

active

058338080

ABSTRACT:
The headbox apparatus of this invention contributes to the production of a paper web of uniform fiber orientation by controlling the edge flow of stock into the headbox nozzle through adjustable valves positioned in edge tubes in closed loop with a fiber orientation sensor. At the same time that fiber orientation is being control through adjustable valves position in the edge tube, basis weight of the web being formed is controlled by a stock dilution systems and an adjustable slice lip, in closed loop with a basis weight profiler sensor.

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