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Indigo, historical dye collection of the Technical University of Dresden, Germany. The oldest known fabric dyed indigo, dated to 6,000 years ago, was discovered in Huaca Prieta, Peru. [9] Many Asian countries, such as India, China, Japan, and Southeast Asian nations have used indigo as a dye (particularly for silk) for centuries.
Vat dyes are a class of dyes that are classified as such because of the method by which they are applied. Vat dyeing is a process that refers to dyeing that takes place in a bucket or vat. The original vat dye is indigo , once obtained only from plants but now often produced synthetically.
A dye is a colored substance that chemically bonds to the substrate to which it is being applied. 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 development of new, strongly colored aniline dyes followed quickly: a range of reddish-purples, blues, violets, greens and reds became available by 1880. These dyes had great affinity for animal fibres such as wool and silk. Although some new colors tended to fade and wash out, others were identical to natural dyes, e.g., indigo dye. By the ...
Añil (Indigofera suffruticosa) is an indigo dye-bearing plant of Central and South America. [5] [6] aniline Aniline dyes or basic dyes are a class of synthetic dyes derived from coal tar, first discovered in the 19th century. These dyes produce brilliant colors that work well with animal fibers, especially silk. Because of poor colorfastness ...
The dye used in this case was madder, which, along with other dyes such as indigo, was introduced to other regions through trade. [7] Natural insect dyes such as Cochineal and kermes and plant-based dyes such as woad , indigo and madder were important elements of the economies of Asia and Europe until the discovery of man-made synthetic dyes in ...
The dye chemical extracted from woad is indigo, the same dye extracted from "true indigo", Indigofera tinctoria, but in a lower concentration. Following the Portuguese discovery of the sea route to India by the navigator Vasco da Gama in 1498, great amounts of indigo were imported from Asia. Laws were passed in some parts of Europe to protect ...
The usage of indigo dyestuff (ai) and indigo dyeing techniques (aizome) was common, [5] with indigo dyes often being the only dyestuff available to use by the peasant classes. Indigo dye would often be grown and processed by the peasant classes themselves, being generally easy to grow, and also added a layer of protection to garments due to its ...
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