Method of forming a sheet of material with indicia
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United States of America Patent
Stats
-
Jun 15, 1993
Grant Date -
N/A
app pub date -
Apr 9, 1992
filing date -
Oct 9, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of forming a sheet of material with indicia thereon comprises applying indicia to the sheet by an electrostatic copying process in which a toner powder is deposited on the sheet and is heated to cause it to fuse. The sheet of material comprises a flexible support layer that is provided with a porous coating of a latent curable material, preferably in particulate and/or filamentary form and especially one based on an epoxy material. It has been found that the indicia are more indelible than those formed on other surfaces by the same process even though the fused toner is not absorbed by the curable material.
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Cited Art Landscape
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