Polyester are a man-made fiber, synthesized from petrochemical products by a process called polymerization. Nearly half of the world's clothing is made of polyester and some organizations indicate this amount to nearly double by 2030. Unter this background, polyethylene terephthalate(PET), as a majority of polyester used in textile, rPET is definitely a sustainable option for our wardrobe, as their production requires far fewer resources than that of new fibers and generates fewer CO2 emissions. By far, apparels and retail companies have taken great effort to increase their use of rPET, including giants like Adidas, H&M, Gap and IKEA.
In May 2022, the technical team of CTI developed a semi-quantitative and quantitative analysis method for determining the proportion of rPET in samples, which are made from PET bottle flakes, after a series of comparative analysis of PET bottle grade chip, recycled and virgin PET fiber.
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