ISTANBUL – Turkish denim supplier Orta Anadolu, which counts brands such as Gap Inc., Uniqlo and Levi Strauss among its customers, has launched ‘Vegan Denim’ – a collection of naturally dyed denim, which it says can be produced on an industrial scale. The company says that using a new ‘patented dyeing process’ it has produced good colour density and shade consistency for a range of indigo and natural denim shades without the need for metal-based mordants.