Intaglio printing inks having improved dispersibility and chemical resistance
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United States of America Patent
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Dec 21, 2004
Issued Date -
N/A
app pub date -
Oct 5, 2001
filing date -
Dec 7, 1999
priority date (Note) -
Expired
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Abstract
Intaglio printing inks in paste form having both improved dispersibility and chemical resistance are provided and, in particular, dispersibility in tap water is provided in some formulations. The paste ink comprises an alkyd resin, having a degree of neutralization between about 10% and about 35% and an acid number between about 30 and 110, optionally containing an unsaturated oily component, an anionic or nonionic surfactant and an organic base selected from the group consisting of alcohol-amines, and substituted polyethyleneimines, wherein the substituted polyethyleneimines are modified with epichlorohydrine or alkoxylated and the organic base has a boiling point higher than 150.degree. C. The ink may also comprise water.
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