On-line paper sheet strength determination method and device

Details On-line paper sheet strength determination method and device On-line paper sheet strength determination method and device

1987-10-06

1990-06-26

Shoop, Jr., William M.

Measuring and testing

Sheet, woven fabric or fiber

162198, 356430, 250559, G01N 2186

Patent

active

049361414

ABSTRACT:
A method and device for determining the strength of a sheet material, such as paper, utilizing floc size and the variability of the local basis weight of the sheet. The force required to deflect the moving sheet out of a nominal position, the distance the sheet is deflected by said force and the average tension applied to the sheet may also be utilized in the above determination of sheet strength.

REFERENCES:
patent: 4644174 (1987-02-01), Ovellette et al.
patent: 4648712 (1987-03-01), Brenholdt
"Improving the Strength of LinerBoard", R. M. Soszynski, et al., Pulp and Paper Research Institute of Canada, pp. 594-599.
"The Fundamental Properties of Paper Related to its Uses", Transactions of the Symposium at Cambridge: Sep. 1973, edited by Francis Bolam, pp. 60-68.

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