Indigo dye must be tested before using and it is mainly used in jeans.
Indigo dye is an important dyestuff with a unique shade of blue color. It is natural, which is extracted from the plant called indigofera in history. The dye provides a brilliant and eye-catching blue color to the fabric and cotton. However, nearly all indigo dye produced today (several thousands tons each year roughly) is synthetic by chemical methods. Indigo blue is the primary color of blue jeans in the world, and its importance is increased at present as a result. In the United States, indigo is primarily used to dye cotton clothes and blue jeans. Over one billion pairs of jeans are dyed blue with indigo around the world. Besides, indigo dye is widely used in wool, silk, food and makeups.
The matters need to note about storage & transportation:
Safety guidelines for using indigo dye.
Indigo does not require fibre to be mordanted beforehand, so it makes dyeing easier.
Indigo dyeing process typically takes 5 - 10 minutes.
Indigo dyes at about 40 to 50℃ and saves energy unlike many other natural dyes that require a high work temperature.
Indigo is very concentrated. Experience demonstrates that 10g indigo can dye up to 1kg fibre.
There is no harm substance produced during using indigo.
Indigo dye is long-lasting and practical, and indigo dye can protect the material from the damage of moths and insects.
Most parts of the world have native plants that can extract indigo.
like: cotton, fibre, wool, silk, leather, feathers and so on.
Indigo dye has two kinds: natural and synthetic. The synthetic Indigo dye is widely used in clothes, bags, food and makeups in modern society.
Indigo dye can be used for cotton, wool, silk and leather dyeing, so it is extensively used in clothes and bags.
Indigo dye can be used in food as additive to make the food colorful, but the amount used is limited.
Indigo dye makes women more beautiful and confident, and it promotes the progress of society and increasing of global economy.