Paper object printed with ink and coated with a protective layer
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United States of America Patent
Stats
-
May 16, 1989
Grant Date -
N/A
app pub date -
Aug 19, 1987
filing date -
Aug 19, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Paper, and especially bank notes, printed with ink that contains micronized wax is coated with cellulose ester or ether. Thereby it becomes soil-repelling and its useful life-time increases considerably.
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Cited Art Landscape
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