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We understand that currently Sorona is currently only 37% renewably sourced by weight, with the remainder being derived of petrochemicals. Specifically TPA or terephthalic acid, which is also a key component in the product of the polyester or PET (polyethylene terephthalate). If you’ve been reading about textiles fashioned from corn or PLA (polylactic acid) you’ve probably been hearing plenty about Cargill’s NatureWorks Ingeo.* It is about to joined by a newish product, that we hinted at around a year ago, is soon to be seen in women’s sportswear. It’s Dupont’s Sorona, also made with a corn feedstock. Dupont figure that using a renewable compared to their usual fossil fuel based nylon reduces greenhouse gas emissions 60% and uses 40% less energy, equating to an annual energy savings equivalent to 36 million gallons (~136 million litres) of petrol/gasoline. Skirtsports plan to release a Green Skirt in a 40% bio-blend of Sorona in the northern spring of 2008. |
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