(Corrects headline and first paragraph to say .. fiber ..not.. fabric) MADRID (Reuters) -Zara owner Inditex has signed an agreement worth more than 100 million euros ($104 million) to buy 30% of the recycled fiber to be produced by Finland’s Infinited Fiber Company for three years in a push to use more sustainable materials. The purchase commitment will support Infinited Fiber’s plans to open its first large capacity factory in 2024, when Inditex is due to start buying the Infinna premium recycled fiber made entirely of clothing waste, Inditex said on Thursday. “We are actively working to find…