Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1981-12-07
1983-02-22
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428211, 4283155, B41M 500, G01D 1534
Patent
active
043748899
ABSTRACT:
Re-usable sheet material, having a dark colored base sheet provided on each side with a microvoid layer, temporarily imageable by application of volatile liquids, is treated on the face side with oleophobic (preferably also hydrophobic) fluorochemicals. Surface contamination of the face side with oil, which would cause permanent transparentization and prevent re-use, is readily removed by placing the face side of the sheet material in contact with the back side. One use for the product is as an order blank in the fast food industry.
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Alexander Cruzan
Brink Richard E.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Van Balen William J.
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