Natural indigo is a dye obtained from a plant called indigo or Indigofera. It is found in Africa and the Middle East and used for dyeing fabric and yarn. This dye has the capability to impart various shades of blue to the garments. Be it the light blue, sky blue, navy blue, dark blue, royal blue or electric blue, the natural indigo is the first choice of the garment industry for coloring different types of apparels.
HOW TO MAKE INDIGO DYE
It is made from the leaves of the indigo plant. These small-sized leaves are dried and fermented to make the dye. After that, various ingredients are added to make the dye.
The indigo dye is differentiated into two types:
• Natural form, which is insoluble in water and cannot be used for dyeing.
• Leuco form, which is soluble in water and can be used for dyeing the fabric.
For making indigo to Leuco form, it has to undergo the reduction process. The various chemical reactions are carried out by adding hydrogen sulfide in alkaline solution and caustic.
SOME QUIRKY FACTS ABOUT NATURAL INDIGO
For dyeing any fabric, it is needed to be kept in the dye bath for a specific period of time in order to derive the desired color. After that, it is taken out from the liquid dye and kept in the open air. Then, the dyeing solution changes to blue.
Indigo dyes have a bigger size of molecules. It mostly penetrates to the outer surface of the fabric.
Different shades of blue can be successfully achieved by using the natural indigo.
Other than coloring, it is also used for healing scorpion bites, ovarian and stomach cancer problems.
The entities engaged in producing the natural indigo dye should use the utmost authentic ingredients and modern techniques for the production of the final product. They should offer it in a high-quality packaging material, to avoid the chances of spillage or contamination during the transit. The manufacturers of natural indigo dye should be well-capacitated to meet the bulk requirements of the market on a timely basis. These entities should meticulously examine each and every lot of the offered natural indigo on the basis of various quality parameters before making the final dispatch. They should be capable of making deliveries to the geographically scattered clients in an effective manner. The producers of natural indigo should sincerely adhere to the standards and norms laid down by the industry.