At the moment, it is very popular to use PET-bottles for making new products, including clothes. Oil is the raw material from which polyester is made. With the right methods, polyester can be infinitely recycled. This makes it an interesting material for making the fashion industry more sustainable. The fashion industry is looking for ways to extend the lifespan of fibers.
With mechanical recycling, less water and energy is required, but the quality of the fiber cannot be maintained. This is different with moluculair recycling. This does not affect the quality of the fiber, but the technique is not used often. One of the challenges is the fact that polyester is often used in combination with other fabrics. The effects of recycling polyester in combination with other fabrics, in terms of releasing dyes and chemicals, are unknown.