Noun: vat dye vat dI
- A water-insoluble dye that is applied by reducing the dye to an alkaline form, applying the dye, then regenerating the insoluble dye by oxidation in the material; used for dyeing cotton
"Vat dyes are known for their excellent colour fastness and are often used in dyeing denim";
- vat color [US], vat colour [Brit, Cdn]
Derived forms: vat dyes
Encyclopedia: Vat dye