Water-insoluble monoazo pyridone dye
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United States of America Patent
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Jan 27, 1981
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N/A
app pub date -
Nov 19, 1976
filing date -
Nov 19, 1976
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Expired
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Abstract
Water-insoluble monoazo dyes of the formula ##STR1## produced by reacting a diazotized amine of the benzene, naphthalene, diphenyl, diphenylmethane or heterocyclic series which is free from water solubilizing groups with the appropriate 6-hydroxy-2-pyridone and the utility thereof for the dyeing and printing of synthetic fabric materials to yellow to red shades having excellent fastness to light and sublimation.
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