Bunte salt azo dye compound

摘要

The invention relates to a Bunte salt azo dye composition comprising an azo dye containing at least one Bunte salt group. The resulting dye is water soluble material which is useful in the rapid dyeing of natural and synthetic fibers. The Bunte salt azo dye of the present invention can be used without requiring a mordanting step or a concurrent or pre-reducing step to condition fibers of animal hair to accept the dye to achieve strong color performance.