Method for determining the surface abrasiveness of a paper machi

Details Method for determining the surface abrasiveness of a paper machi Method for determining the surface abrasiveness of a paper machi

1979-05-24

1981-03-03

Bashore, S. Leon

Paper making and fiber liberation

Processes and products

With measuring, inspecting and/or testing

73 7, 73159, 116208, 340652, G01N 356, G01N 1902

Patent

active

042539137

ABSTRACT:
A method and apparatus is described for obtaining a quantitative indication of paper web abrasiveness as the web subject of the test is in transit through the production machine. Test specimens of thin, sheet metal shim stock are held in light bearing pressure contact against the dry, finished or nearly finished web for a measured increment of web length. The measured quantity of specimen material lost to the measured quantity of passing web will yield a quotient indicative of the relative abrasiveness of the subject web.

REFERENCES:
patent: 2976716 (1961-03-01), DeHaven
patent: 3216238 (1965-11-01), Bailey
patent: 3456236 (1969-07-01), Labartino et al.
patent: 3805228 (1974-04-01), Peeples
patent: 3827281 (1974-08-01), Hanel
patent: 4019066 (1979-10-01), Lucas et al.
Power; "Machinable Plastic Laminates", TAPPI; vol. 57, No. 2, Feb. 1974, p. 95.
Power et al.; "Machinability Defects in Laminates Caused by Tool Wear", Forest Products Journal, vol. 24, No. 1, Jun. 1974, p. 40.
"Development of a Method for Evaluating the Relative Abrasiveness of Corrugating Medium," Inst. of Paper Chemistry Project 2696-18, Oct. 5, 1976.
McMahon, "A Portable Abrasiveness Tester for Corrugating Medium," TAPPI, Nov. 1978, p. 83.

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