Aqueous ink and use thereof
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United States of America Patent
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Apr 22, 2003
Grant Date -
N/A
app pub date -
Jul 24, 2000
filing date -
Jul 22, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention includes an aqueous ink that has a composition which contains one or more dyestuffs, at least one alkanol with a straight or branched C.sub.3 -C.sub.8 -alkyl chain and between two and four hydroxyl groups, at least one C.sub.1 -C.sub.6 -alkyl ester of an .varies.-hydroxycarboxylic acid of the formula R--C(OH)--COOH, wherein R is H or a straight or branched C.sub.1 -C.sub.6 -alkyl residue of a penetration agent, a surfactant, other adjuvants, and wherein the balance of the composition is water.
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