The Indian Institute of Science (IISc) has patented a technology called "SaLSO" (Solvent-Assisted Layer Selective Opening) to tackle the growing problem of multi-layered plastics (MLPs) and synthetic textile waste. These materials have been notoriously difficult to recycle and are often referred to as "untouchables" in the recycling world.
MLPs are used extensively in packaging due to their barrier properties and durability, but their mixed composition makes them nearly impossible to recycle. Synthetic textile waste, particularly from polyester and nylon clothing, is also a major contributor to landfills and microplastic pollution. The researchers at IISc noted that MLPs have a market worth of over $168 billion, while the textile industry generates more than 92 million tonnes of waste each year, a significant portion of which is synthetic. Traditional recycling methods have struggled to keep up with the volume and complexity of these materials.
SaLSO builds upon the team's previous work, where it was successfully used on Polyurethane and Epoxy. The newly patented process effectively separates the individual components of plastic and textile waste, which then allows each material to be recovered and reused in high-value applications. According to the researchers, SaLSO is not only technically impressive but also environmentally sound, making it a potential game-changer in the field.
Other recent innovations from IISc include:
These innovations highlight IISc's commitment to finding sustainable solutions to pressing global challenges and contributing to India's technological advancement.
