ASYMMETRICAL POLYAZO DYE, MANUFACTURING METHOD FOR SAME, COLOURING AGENT AND COLOURING METHOD

摘要

Disclosed is an asymmetrical polyazo dye obtained by linking a monoazo dye residue (A) and a different monoazo dye residue (B) via an allylene poly(carboxamide) group. The asymmetrical polyazo dye is characterized in that each monoazo dye residue is formed by coupling a coupler residue and a diazo component, and in that the asymmetrical polyazo dye has a specific asymmetrical polyazo dye molecular structure.