Ink transfer ribbon
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United States of America Patent
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Aug 21, 2001
Grant Date -
N/A
app pub date -
Jul 13, 1998
filing date -
Aug 7, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An ink transfer band has (a) a microporous flexible substrate; (b) one or more optional intermediate layers; and (c) one or more layers of a transfer ink. The ink transfer ribbon is characterized in that the back side of the substrate has a surface roughness depth R.sub.t of at least approximately 400 nm and an average roughness value R.sub.a of at least approximately 40 nm. This transfer ribbon has the advantage of solving in a simple and economical manner the problems related to oil migration and static electricity.
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