Indigo

The indigo is perhaps the most prominent dye used by anciet men, the report mentioned in various cultures, so much so that one of the colors of the Tabernacle was indigo blue.

Since the advent of synthetic indigo, the source traveled to the industrial seriously affect agriculture in many countries such as India.

For dyeing with indigo and it must reduce its oxidized state is blue. The liquid reduced indigo dye, called "leuco" and greenish, adheres to the cotton cellulose achieved excellent stability.

The yarns always contain an excess of dye that comes in the first few washings, as with the "blue jeans" pants most of the world famous. Ecotintes used indigo for blue and green colors.

The Maya developed a unique blue from indigo which has passed to posterity as "Maya blue".
The indigo may be an excellent rotation crop for agriculture, for its contribution of nitrogen to the soil.

Their demand is growing in the organic market. Ecotintes promotes organic indigo planting in Peru.

Most commercial species of Indigofera are adaptable to a wide range of climates in the tropics and warmer areas of the sub-tropics, but have different results in terms of quantity and quality of the dye.

The growth and production is better in soils with abundant water supply, but porous and rich in organic matter.