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Officina+39’s Treatment Trials for TENCEL™ Modal with Indigo Color Technology

At Lenzing, we’ve given indigo yarn dyeing a low-impact makeover.

Our TENCEL™ Modal with Indigo Color technology fibers offer an alternative to the resource-heavy process typically used to achieve the blue denim look. Instead of using significant water and energy to get dye to soak into fibers, the TENCEL™ technology adds indigo pigment while the modal is still in liquid form. This not only boasts environmental savings, but it also creates fibers that have color embedded for better colorfastness.

Italian textile chemistry firm Officina+39 has been trialing treatments for TENCEL™ Modal with Indigo Color technology. These finishing processes continue the sustainable footprint of the fibers by prioritizing chemical safety and reduced resource usage.

Read more on Carved in Blue.

This article is one of a series on Rivet from Lenzing’s Carved in Blue denim blog. From conversations with the experts behind the mills that make some of the world’s most-wanted denim to the global brands bringing novel denim made with TENCEL™ Lyocell and Modal to the market, Carved in Blue shares the stories of those whose roots run deep with denim. Visit