Anthraquinone dyes
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United States of America Patent
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-
Jan 1, 1980
Grant Date -
N/A
app pub date -
Nov 16, 1978
filing date -
Nov 19, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Anthraquinone dyes of the formula ##STR1## where R is C.sub.1 -C.sub.10 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, alkoxyalkyl of a total of 3 to 11 carbon atoms, phenoxyalkyl, where alkyl is of 2 to 4 carbon atoms, or phenyl-C.sub.1 -C.sub.4 -alkyl. On synthetic fibers and blends thereof with cellulosic fibers, the dyes give brilliant clear blues. The dyes are particularly suitable for transfer printing onto synthetic fibers and give high color yields. The transfer prints obtained have excellent fastness characteristics.
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