India-based start-up Chakr Innovation developed a technology that takes the soot from diesel generators and turns it into a carbon black used to make ink. The technology was created due to the growing concerns surrounding air pollution in Asia.
Chakr Innovation pitched the idea to Dell, resulting in the tech company now using the ink on 1.5 million Dell packaging boxes across India each year. At the time of launch, Dell estimated that the process would help clean the same amount of air breathed annually by about 110,000 people.
https://www.packaging-gateway.com/features/dell-sustainable-packaging/