Light-stabilized ink composition
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United States of America Patent
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Jun 23, 1992
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N/A
app pub date -
Jul 19, 1991
filing date -
Aug 25, 1989
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Abstract
2-(2'-Hydroxyphenyl)benzotriazoles of formula I ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are as defined in claim 1, and which contain at least one --SO.sub.3 X group in the molecule, are suitable light stabilizing additives for aqueous ink compositions, especially for ink jet printing. Some of these compounds are novel compounds.
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