Archive · 12 Aug 2025
IIT Delhi Develops Method to Recycle Denim Waste into Garments
Scientists at IIT Delhi have found a new way to turn old denim into new clothes!
They figured out how to recycle denim scraps into yarn, which they then used to make knitted clothing.
They can even use a lot of the recycled yarn (up to half!)
without making the clothes feel scratchy.
This helps reduce the amount of old clothes that end up in landfills.
The researchers also discovered that this new process is good for the environment.
It reduces pollution and the use of things like water and chemicals that are needed to grow cotton.
The team is also looking into ways to recycle the clothes multiple times.
IIT Delhi researchers developed a method to recycle denim waste into knitted garments.
The method allows up to 50% recycled yarns in knitted clothing without quality loss.
A softening treatment ensures the final product feels similar to virgin products.
The research quantified environmental benefits, showing significant reductions in greenhouse gas emissions and other impacts.
The team is exploring recycling textile waste multiple times.
- Who
- Researchers from IIT Delhi.
- What
- A new method to recycle denim waste into knitted garments.
- When
- The research was detailed in the Journal of Cleaner Production.
- Where
- IIT Delhi.
- Why
- To reduce textile waste and its environmental impact.
Current Textile Production
Novel Recycling Method
Waste Reduction
Current Textile Production
Current methods lead to textile waste.
Novel Recycling Method
New method recycles waste into new garments.
- Recycled Yarns in Garments
- Up to 50%
- Environmental Impact Reduction
- 30-40% (greenhouse gas emission, acid rain, fossil fuel depletion)
- Ozone Layer Depletion Reduction
- Around 60%
- Textile Waste in India
- Around 3.9 million tonnes annually
- Recycling Rate of Textile Waste in India
- 4%