Ink set for ink jet printing
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United States of America Patent
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Sep 4, 2007
Grant Date -
Sep 29, 2005
app pub date -
Mar 23, 2005
filing date -
Mar 25, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Ink set for ink jet printing consisting of at least one yellow ink, one magenta ink, one cyan ink and one black ink, wherein the magenta ink contains, as first dye component, at least one dye of formula (I) ##STR00001## wherein R.sub.2 and Aryl are as defined in the specification, or of formula (II) ##STR00002## wherein M, R.sub.1 and Aryl are as defined in the specification and, as second dye component, at least one copper complex azo dye of formula (III) ##STR00003## or of formula (IV) ##STR00004## wherein M, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are as defined in the specification.
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