Azo dyestuffs for dyeing and printing cellulose-containing fiber materials in an ink jet process
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United States of America Patent
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Jun 10, 1997
Grant Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Jul 12, 1994
priority date (Note) -
Expired
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Abstract
New azo dyestuffs of the formula (I) ##STR1## wherein n in each case independently of one another represents 0 or 1, a, b and c independently of one another denote 1 or 2, a+c<4, a+b+c=3 or 5 and X and Y denote different mono- or bivalent radicals, a process for their preparation and their use for dyeing and printing cellulose-containing fibre materials, in particular paper by means of the ink jet process, have been found.
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