Austrian cellulosic fibre producer Lenzing is enhancing sustainable offerings for the denim industry with Tencel branded modal fibres with Indigo Color technology.
The Indigo Color technology incorporates indigo pigment directly into Tencel branded modal fibers using a one-step spun-dyeing process. This delivers superior colourfastness relative to conventional indigo dyeing whilst using substantially fewer resources, the firm says.
Compared to water and energy-intensive conventional indigo dyeing, this technology provides indigo colouration with substantial water, chemical and electricity savings, along with less wastewater produced, and no heat energy used. In addition, a specially commissioned indigo pigment from dyestuff manufacturer DyStar ensures that Tencel Modal with Indigo Color technology can be certified with Standard 100 by Oeko-Tex guaranteeing ultra-low levels of aniline.
It has also been awarded with the EU Ecolabel, a label of environmental excellence awarded to products meeting high environmental standards throughout their life cycle.
“Innovation is at the core of what we do, from sustainable fibre sourcing through industry-leading features and production processes, with the ever-present goal of safeguarding our environment,” says Florian Heubrandner, vice president global textiles business at Lenzing AG. “By upending traditional manufacturing processes and implementing our pioneering technology along with renewable and eco-responsible materials, Tencel Modal with Indigo Color technology sets a new benchmark for indigo application and sustainability in the denim industry.”
To make the commercial launch of Tencel Modal with Indigo Color technology possible, Lenzing has partnered with supply chain partners including denim mills Candiani and Cone Denim.
“With driving sustainability at our core, we look forward to a fruitful collaboration with the production of this eco-responsible fibre type,” says Alberto Candiani, global manager of Candiani. “Tencel Modal with Indigo Color technology also represents a great product to expand denim’s performances and aesthetics around sustainability itself.”
Steve Maggard, president of Cone Denim, add:, “Lenzing has long been an industry leader in sustainable fibres. With consumers being more eco-conscious, the denim industry has to evolve and innovate in smarter materials to stay efficient and competitive.”