Process for controlling properties of travelling sheets

Details Process for controlling properties of travelling sheets Process for controlling properties of travelling sheets

1989-12-13

1991-06-11

Hastings, Karen M.

Paper making and fiber liberation

Processes and products

With measuring, inspecting and/or testing

162252, 162263, D21F 106, D21F 706

Patent

active

050229664

ABSTRACT:
A method for controlling high-speed sheetmaking machine after abrupt process changes and during start-up periods and the like, includes operating a scanning sensor to periodically traverse back and forth across a sheet in the cross direction to detect values of selected sheet property along each scan while the cross-directional width of each scan is controlled to be substantially less than the width of the sheet being scanned.

REFERENCES:
patent: 3678594 (1972-07-01), Goerz Jr. et al.
patent: 3936665 (1976-02-01), Donoghue

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