FIELD: organic chemistry, dyes.
SUBSTANCE: invention relates to the dispersed dyes comprising N-methylphthalimide-diazo-component and a coupling aniline component. Invention proposes a dye of the formula (1): wherein R means hydrogen or bromine atom; R1 means hydrogen atom, methyl or -NHCO-(C1-C4)-alkyl; R2 means (C1-C4)-alkyl substituted with (C1-C4)-alkoxy-group; R3 has any value among R2 being independently of R2. Invention proposes a mixture of dyes comprising at least one azo dye of the formula (1) and at least one azo dye of the formula (4): wherein R1 means hydrogen atom, methyl or -NHCO-(C1-C4)-alkyl; R2 means (C1-C4)-alkyl wherein is possible but not obligatory that C2-alkyl chain or comprising more carbon atoms is broken with oxygen atom, and R has any value of R being independently of R2. Also, invention proposes a method for coloring or printing on semisynthetic or synthetic hydrophobic fibrous materials wherein dye of the formula (1) or mixture of dyes of formulae (1) and (4) is applied on such materials or added in them. Invention proposes dispersed dyes providing coloring characterizing by high strength degree in laundry and against sweat.
EFFECT: valuable properties of dyes.
7 cl, 2 tbl, 3 ex
Authors
Dates
2006-09-10—Published
2002-01-29—Filed