Method for determining the bending stiffness of a moving sheet

Details Method for determining the bending stiffness of a moving sheet Method for determining the bending stiffness of a moving sheet

1991-06-20

1992-12-15

Jones, W. Gary

Paper making and fiber liberation

Processes and products

With stretching, tensioning, decurling, flexing or breaking

162198, 162262, 162263, D21F 1100

Patent

active

051714035

ABSTRACT:
A method for determining bending stiffness of a moving sheet using an on-line sheet bending stiffness sensor. The sensor continuously bends the sheet as it is being manufactured and, based upon the force required to bend the sheet, the amount of bending and the tension applied to the sheet, the sensor determines a parameter indicative of sheet bending stiffness. The resulting parameter can be correlated with conventional destructive laboratory tests of sheet bending stiffness.

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Koran, et al., "The bending stiffness of Paperboard," Tappi Journal, Jun. 1989, pp. 175-179.

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