Indigo dye
Indigo dye is an organic molecule[1] that appears dark blue or indigo when applied to cloth. While the indigo plants are the most famous source of indigo dye, other plants are able to produce the same compound, including woad,[2] Pink Strobilanthes,[3] Japanese indigo,[4] and Yoruba indigo.[5]
Indigo Dye Media
Extract of Indigo plant applied to paper
Indigo, historical dye collection of the Technical University of Dresden, Germany
Johannes Vermeer used natural ultramarine in his paintings, as in his Girl with a Pearl Earring. The expense was probably borne by his wealthy patron Pieter van Ruijven.
Cake of indigo, about 2 cm
Indigo factory at Allahabad, India, drawn by Émile Thérond, 19th century
Production of Indigo dye in a BASF plant (1890)
Indigo white (leuco-indigo)
Yarn dyed with indigo
Pot of freeze-dried indigo dye
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References
- ↑ "PubChem".
- ↑ "Indigo dyeing from Isatis tinctoria L.: From medieval to modern use". Dyes and Pigments.
- ↑ "Island blues: indigenous knowledge of indigo-yielding plant species used by Hainan Miao and Li dyers on Hainan Island, China". Journal of Ethnobiology and Ethnomedicine.
- ↑ "Exploring the Origins of Aizome―Traditional Indigo Dyeing".
- ↑ "Yoruba indigo. (Lonchocarpus cyanescens, Benth.)". Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew).