Lenzing unveils Tencel Modal fibre to help elevate sustainability in the denim industry

Tencel Modal with Indigo Color technology

The Lenzing Group is enhancing sustainable offerings for the denim industry with Tencel branded modal fibres with Indigo Color technology.

The pioneering Indigo Color technology incorporates indigo pigment directly into Tencel branded modal fibres using a one-step spun-dyeing process. This delivers superior colour fastness relative to conventional indigo dyeing while using substantially fewer resources. This offering is awarded with the EU Ecolabel, a label of environmental excellence awarded to products meeting high environmental standards throughout their life cycle.

The denim industry’s demand for eco-responsible alternatives is growing rapidly, as brands and supply chain partners seek greater sustainability. Lenzing has been working closely with such partners to counteract environmentally harmful denim production processes via the botanic origin of its raw materials and responsible production processes.

Denim remains an important market for Lenzing, and the introduction of Tencel Modal with Indigo Color technology is designed to help reduce the ecological footprint of denim fabrics and garments. Produced in Austria, predominantly from beech wood derived from sustainably managed wood sources, this new offering has been designated BioPreferred by the United States Department of Agriculture (USDA).

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.

To make the commercial launch of Tencel Modal with Indigo Color technology possible, Lenzing has partnered with leading supply chain partners including denim mills – Candiani and Cone Denim.

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