Stella Blu debuts its global launch of waterless Cooltrans collections at Denim PV in Milan The 6 November 2023 - Denim - Denim Première Vision

PV Denim Milan marks the debut of Stella Blu’s first full Collection using the Cooltrans technology. This coloration process happens with extreme precision and consistency every time and is applicable to almost any fabrics, natural, cellulose-based or synthetics man-made without the need for heat and over 90% reduction in water usage without compromising the fabric’s engineered feel or functional performance. 

“Conventional denim has an extensive use of water, heat and chemicals starting from the initial processes of fabric making—dyeing yarns into several indigo baths—all the way down to laundry processes to create that vintage distressed look. With Cooltrans, we are able to completely eliminate these two processes. We start from a white PFD fabric and then the coloration process happens without heat at both sides simultaneously in only one single pass—the front face gets the printed washed look and the back side face gets printed with the twill line or any other pattern the client’s desire.”

Marco Stefanelli, Director of marketing & business development at Stella Blu

Many denim brands today maintain extensive material libraries, consisting of well over 500 different types of fabric, solely for the purpose of achieving a desired look. However, with Cooltrans, the aesthetic can be completely independent of the fabric composition. By calibrating the process to a specific fabric base, brands can achieve a wide range of aesthetics on a single twill type, resulting in tremendous costs savings.

Furthermore, addressing the environmental impact of indigo dye is a shared concern within the industry. Cooltrans is seen as a promising solution to reduce the toxicity associated with indigo dye as there is no indigo involved in the entire process, which is an additional key point that many brand houses view it favourably.