Acid Violet 90 is a 1:2 metal-complex dye that produces a reddish-violet shade with excellent all-around fastness properties. It is engineered for demanding applications where colour durability is essential, particularly on nylon and wool. The pre-metallised structure ensures superior resistance to light, washing, and other wet treatments. It is used for high-quality textiles like automotive fabrics, carpets, and performance apparel.