Erasable aqueous ink composition
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United States of America Patent
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-
Apr 20, 1993
Grant Date -
N/A
app pub date -
Oct 11, 1991
filing date -
Feb 13, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides an erasable aqueous ink composition comprising, based on the total weight of the ink composition, 3 to 50% of a resin having a minimum film-forming temperature of not lower than 40.degree. C., 0.01 to 10% of a water-insoluble dye, 0.5 to 50% of a water-soluble organic solvent and 20 to 60% of water.
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