Method of dyeing or printing polyamide-containing materials
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United States of America Patent
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Apr 29, 2003
Grant Date -
N/A
app pub date -
Aug 24, 2000
filing date -
Aug 30, 1999
priority date (Note) -
Expired
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Abstract
The present invention relates to a method for the trichromatic dyeing or printing of natural or synthetic polyamide fiber material, which method comprises using at least one blue-dyeing dye of formula ##STR1## wherein X, W, A, B, Q.sub.1, Q.sub.2 and z are as defined in claim 1 for formula (1), together with at least one red-dyeing dye of formula ##STR2## wherein R, R', R.sub.5, R.sub.6, R.sub.7, R.sub.8 and X.sub.1 are as defined in claim 1 for formula (2), and together with at least one yellow-or orange-dyeing dye of formula ##STR3## or of formula ##STR4## wherein R, R', X.sub.2, X.sub.3, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15 and R.sub.16 are as defined in claim 1 for formulae (3) and (4), and to new acid dyes.
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