Natural Dyeing with Black Carrot: New Source for Newer Shades on Silk

Abstract

Silk dyeing with black carrot or Daucus carota has been attempted for the first time, giving good shades on silk. The colorant responsible for shades of green is primarily anthocyanins, which are more stable over a wider pH range than anthocyanins from other vegetable sources, making it ideal for textile dyeing. Premordanted with metal salts the dyed silk has shown remarkable CIE La*b* values and fastness properties. The K/S of dyed silk swatches increased in the order of reactivity –FeSO4 > SnCl2 > SnCl4 > Alum > CuSO4 > K2Cr2O7. Black carrot can be a potential dyeing source for natural dyeing.