Logwood, Cutch, Fustic, Quercitron bark extract, Weld, Madder, etc., are Natural/vegetable mordant dyes, which were applied using suitable mordents which include Iron, Copper, Chromium, Aluminum, etc. The use of these and other Natural/Vegetable dyes like Awobama, Akalbir, Brazilwood extract, Jackwood, Myrobalan, Kapila, Kamala, Saffron, Turmeric, Weld lake and Lac on silk has been reported in literature.

AHIMSA SILK YARN DYED WITH CHEMICAL DYES

Natural/Vegetable dyes are obtained from Plants (vegetable) and Mineral sources. They are mainly mordent dyes.

VEGETABLE DYES

Mordent dyes including both natural and synthetic dyes. The natural mordent colors are obtained from the extract of Leaves, Barks, Trunks, Roots, Flowers, Fruits or Berries of large number of Shrubs, Plant and Trees. In fact as many as 500 plant species have been identified as useful sources of Natural/Vegetable dyes.
The Dyeing process with natural/vegetable dyes is more laborious and more time consuming for natural effect. The end product is near to nature; as such its appearance may not have artificial glittering.