Process for dry dyeing synthetic or semi-synthetic, or natural materials

摘要

Synthetic or semi-synthetic, or natural materials are dyed deep turquoise blue by contacting the material with a vaporized dye of the formula, ##STR1## wherein X is oxygen or imino, and R is C.sub.4 -C. sub.5 alkyl or C.sub.4 -C.sub.5 alkenyl.