DICYANO AZO DYES HAVING ETHER SUBSTITUTED ANILINE COUPLERS

摘要

TITLE DICYANO AZO DYES HAVING ETHER SUBSTITUTED ANILINE COUPLERS This invention relates to blue dyes containing a 2,6dicyano-4-nitrophenylazo moiety in combination with an aniline coupler containing m-acylamido groups and polyether groups on the coupler nitrogen atom. The dyes have excellent fastness properties and very desirable blue shades when dyed on polyester and cellulose acetate fibers.