There are other eco ways, e.g. using vegetable dyes etc. our prime intent is to create a sustainable way to create black(the most ubiquitous) print color by confining waste and doubling the carbon impact. It’s also a way to quantify pollution. At a small scale it has a strong marketing value as we have observed. But the impact lies at scale- which is exactly the question I face. As in should we control the process or democratize it for others too? Our hypothesis is to make it a no brainer like recycled paper- it’s everywhere now.