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Today, dyeing with natural materials is often practiced as an adjunct to hand spinning, knitting and weaving. [72] It remains a living craft in many traditional cultures of North America, Africa, Asia, and the Scottish Highlands. [73] Ecological consciousness has prompted a renewed interest in natural-dye techniques.
Dyeing Pigments for sale at a market in Goa, India Cotton being dyed manually in contemporary India Silk dye in pan on stove. Khotan. Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness.
This distinguishes dyes from pigments which do not chemically bind to the material 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. [2] The majority of natural dyes are derived from non-animal sources such as roots, berries, bark, leaves, wood, fungi and ...
Dyers must take into account how different dye shades interact when cloths go through multiple stages of dyeing with different colours. Many dyers use proprietary dye recipes for this reason, using locally sourced plant materials. Natural dyes also take longer to produce deep shades of colour, extending the dyeing process. [40]
Indigo is a natural dye extracted from the leaves of some plants of the Indigofera genus, in particular Indigofera tinctoria. Dye-bearing Indigofera plants were commonly grown and used throughout the world, particularly in Asia, with the production of indigo dyestuff economically important due to the historical rarity of other blue dyestuffs. [1]
Many of the dyes are made from lichens, the useful ones for this purpose being known as crottle.. The process employed is to wash the thread thoroughly in urine long kept ("fual"), rinse and wash in pure water, then put into the boiling pot of dye which is kept boiling hot on the fire.