Blue anthraquinone dye mixture for natural and synthetic polyamides
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United States of America Patent
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Jul 21, 1992
Issued Date -
N/A
app pub date -
Apr 18, 1991
filing date -
Mar 10, 1989
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Abstract
The invention relates to a dye mixture containing a dye of the formula ##STR1## and a dye of the formula ##STR2## where R is cyclohexyl or phenyl, which may each be substituted by C.sub.1 -C.sub.4 alkyl, acetylamino, N-C.sub.1 -C.sub.4 alkylacetylamino, benzoylamino, ureido or by phenylsulfonylamino or phenylsulfonyloxy which may be substituted in the phenyl ring by C.sub.1 -C.sub.4 alkyl. Said dye mixture is suitable for dyeing and printing natural or synthetic polyamide materials, in particular in combination with other dyes and in particular from short liquors. The mixture is notable for generally good properties, in particular good dyeing properties and good solubility.
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