A dye is a colored substance that is soluble in some solvent; by contrast pigments are insoluble or nearly so in all solvents. Because of their solubility, dyes can chemically bind to the material the
Dyes made at De Kat, Zaandam
Dyeing wool cloth, 1482: from a French translation of Bartolomaeus Anglicus
Shelf with various hair dyes in a hairdresser shop
Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources—roots, berries, bark, leaves, and wood—and other
Dye
…they color. Dye is generally applied in an aqueous solution and may require a mordant to improve the fastness of the dye on the fiber. The majority of natural dyes are derived from non-animal sources such as roots, berries, bark, leaves, wood, fungi and lichens. However, due to large-scale demand and technological…
Naturally dyed skeins made with madder root, Colonial Williamsburg, VA
Oaxaca artisan Fidel Cruz Lazo dying yarn for rug making
Dyeing wool cloth, 1482, from British Library Royal MS 15.E.iii, f. 269.
A dye-works with baskets of dyestuffs, skeins of dyed yarn, and heated vats for dyeing, in Odisha, India.