Printing inks for offset and/or high printing containing NIR absorbers and NIR absorbers soluble in offset and/or high printing inks
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United States of America Patent
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May 29, 2012
Grant Date -
Mar 17, 2011
app pub date -
Nov 19, 2010
filing date -
Mar 5, 2004
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Abstract
Printing inks for offset and/or letterpress printing which comprise NIR absorbers, and solubility of the NIR absorber in the printing ink is at least 0.1% by weight. NIR absorbers consisting of cyanine cation with an anion which has long-chain alkyl or aralkyl groups. Use of such printing inks for printing processes in which the curing of the printing ink is promoted by using IR lasers. NIR absorbers comprising a cyanine cation with an anion which has long-chain alkyl or aralkyl groups.
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