A popular dyestuff used by manufacturers who want a faded look on their jeans. The pigment dye does not naturally stick to fibre. It only coats the surface and attaches itself there with the use of resins. It therefore washes off quite quickly, achieving what looks like an authentic fade. Pigment dyes are available in various colors.
Source: Nouvelle de Nîmes Nº 5: The Denim Dictionary
