Ink composition
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United States of America Patent
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-
Jan 11, 1983
Grant Date -
N/A
app pub date -
Sep 6, 1980
filing date -
Sep 6, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink composition which comprises a solution of cobalt thiocyanate or a mixture of a compound capable of producing a thiocyanate ion and a compound capable of producing a cobalt ion in a liquid vehicle, the solution having been incorporated with polyalkylene glycol. This ink composition can give vivid inking images of deep blue color, which images can be erased, if necessary, by wiping with cloth, paper, fibrous material or the like impregnated with water.
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Family
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Cited Art Landscape
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