Reducing the Environmental Footprint with Sustainable Fibers
A Sustainable Solution for Automotive Interiors
The automotive industry has an increasing need for high-performance, environmentally sustainable fibers.
The Toyota SAI® meets the increasing demands for a sustainable luxury automobile by using DuPontTM Sorona® renewably sourced polymer for the ceiling surface skin, sun visor and pillar garnish. Sorona® complements the SAI® eco-friendly design, which is comprised of 60 percent renewably sourced materials for the car’s internal surface area.
Sorona® is a polytrimethylene terepthalate (PTT) polymer derived from the DuPont biotechnological fermentation process. It reduces the net production of greenhouse gases without compromising performance.
Sorona® has low moisture content, allowing carpets and fibers to dry faster, which reduces the chance for odor, mold and mildew. This makes the Toyota SAI® easier to clean and maintain. Tests show that Sorona® carpets dry 15 percent faster than nylon 6 carpets and 10 percent faster than nylon 66 carpets.
An inherent property of Sorona® is its built-in stain resistance. It offers permanent stain resistance without the use of secondary treatments.
Sorona® fibers provide the strength and resiliency of nylon with the softness of polyester. It has excellent bulk and loft, which means it is airy and light, giving it a luxurious feel. It also has excellent wrinkle and crush resistance, giving it a great aesthetic appeal.
Featuring excellent elastic and stretch recovery, Sorona® provides added comfort and increased durability.
Sorona® fibers are available in a variety of vibrant colors and can be used in weft knit, warp knit, flat knit, woven and non-woven fabrics. The SAI® uses Sorona® for a various interior applications, including the ceiling surface skin, the sun visor, and the pillar garnish. Sorona® can also be used in floor mats, seat covers, door trim and headliners.
Answering an increasing demand for sustainable products, Sorona® fibers contain 37 percent annually renewable plant-based ingredients. Producing Sorona® uses 30 percent less energy, 21 percent less process water and 63 percent fewer greenhouse gas emissions compared to nylon 6, which is commonly used for automotive interiors.
Toyota SAI® chose Sorona® fibers not only because of its sustainable composition and processability, but also for its strength, durability and elasticity. Sorona® outperforms its nylon counterparts while reducing greenhouse emissions and the dependence on fossil fuels for petroleum-based materials.