Almost everyone has a favorite pair of blue jeans. The ones that fit like a glove, your go-to pair for any occasion.
As we know them today, jeans were the invention of Jacob Davis and his friend, Levi Strauss, who patented the pants in 1873. Since then, jeans have become a huge part of American culture, from cowboys to rebels and rock stars, to hipsters and heads of state. They are a fashion statement and a wardrobe staple.
Blue jeans were once America’s most popular export. They are no longer widely manufactured nor dyed in the U.S. and, while blue jean manufacturing has evolved over the years, the indigo dyeing process has not. Most countries still use the same methods established in the early 1920s.
So, why does this matter? While indigo is a natural, non-toxic dye, the chemicals used to make the color stick to cotton fibers are quite harsh, and the process requires thousands of gallons of water to rinse the chemicals out later.
Recently, the Walmart Foundation, through the Walmart U.S. Manufacturing Innovation Fund, supported a project at Texas Tech University where researchers are using a foam indigo dyeing technique on cotton fibers. According to Texas Tech, this method, which uses a frothy foam dye designed to penetrate the entire fiber, eliminates the use of harsh chemicals and reduces water and energy usage by nearly 90%. This innovation could be a game changer for denim manufacturers by lowering costs and reducing environmental impacts.
This project’s potential is just now unfolding. And it’s part of a broader effort to grow local economies, and ultimately, create more jobs in communities across the country.
Watch the innovative foam indigo dyeing process in action and hear from the people at Texas Tech University who helped create it.