Indigotex has made denim from wool that keeps you warm and skips the water
The IIT Delhi spinout blends indigo-dyed merino wool with cotton, lyocell and hemp, and is developing cold-weather fabrics for the Indian Army.
Indigotex, a startup founded in 2024 and based in Delhi, has developed denim made from wool that is warm and does not require significant amounts of water. This innovation comes from IIT Delhi, where the research for the product began. The founders of the company are Satendra Singh, Dilip Singh, and Apurva Raj Singh. The startup was launched with investments from SIDBI, FITT, and IIT Delhi.
The product, called IndiWool Denim, is a blend of indigo-dyed merino wool and biodegradable fibers such as cotton, lyocell, and hemp. The key technical challenge is that wool and indigo do not naturally combine, and wool is not typically machine washable. However, Indigotex has developed a patented process for dyeing wool with indigo, resulting in a fabric that can be machine-washed.
This process reportedly saves water compared to conventional indigo dyeing methods. The company claims that the process delivers complete water savings and allows for waterless wool finishing as its core technology. The cost of merino yarn used in the fabric ranges between Rs 1,500 and Rs 1,800 per kilogram, while cotton costs between Rs 120 and Rs 150 per kilogram, placing the fabric in the premium segment.
Indigotex initially targets colder markets in Europe, with plans to introduce lower-wool blends for warmer climates. Additionally, the company is exploring applications for protective and extreme-cold textiles, such as lightweight breathable fabrics rated for minus 30 degrees for the Indian Army.
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