The concept has been successfully implemented in its three-layer hardshell and softshell laminates for outdoor apparel and workwear. From the outer and inner fabrics to membrane systems and lamination technology, right over to the PFC-free, water-repellent fabric finishing, all elements are made up of natural components wherever possible.

The use of bio-based, functional textile materials reduces the dependence on fossil petrochemical raw materials. Carbon constituents are replaced with renewable elements. “It’s important to us that we draw on only certified materials from responsible sources that would otherwise not be used as foodstuffs,” explains Matthias Krings, Managing Director at Trans-Textil GmbH. The selected biopolymers originate, for example, from the by-products of food production, such as orange and banana peel, coffee grounds or crop harvest waste. The use of natural hemp fibres, cotton and cellulose-based fibres, and also biopolymers in polyester or polyamide enables the production of textiles that are made entirely from bio-based materials. “Around half of our membrane system is already derived from renewable components at present, with this figure increasing to around 70% in adhesive systems and even exceeding 99% in hydrophobic finishes,” says Krings, taking stock. This enables Trans-Textil to develop a holistic, bio-based concept that considers all elements of the laminate. Moreover, these elements can be combined flexibly for individual functional laminate systems.

In terms of performance, the bio-based laminates are in no way inferior to their conventional petrochemical counterparts. With proven impermeability equivalent to a water-column rating of over 10 metres and breathability of more than 10,000g/m²/24h (MVTR), the multilayer composites are suitable for use in sustainable and durable functional clothing designed for the outdoors, sports and work. They also perform just as well in terms of mechanical durability when worn and washed. Furthermore, high-comfort natural fibres on the inside of the laminates ensure pleasant wear behaviour. Like all laminates produced by Trans-Textil, the new bio-based fabric systems are also certified in accordance with the latest Standard 100 by Oeko-Tex® criteria.