Polyester is a petroleum-based synthetic fiber used for athletic clothing and apparel. It is one of the most sought-after materials in the world because it is durable and moisture-wicking.
Another Name for Polyester
Polyester is also known as polyethylene terephthalate (PET). This compound is formed from the reaction between glycol ethylene and dimethyl terephthalate.
PET is not exclusive to fabric, as it is used for packaging foods and formed into plastic bottles that are used for beverages. This means that water bottles polluting the ocean or in landfills can be converted into fibers for clothing.
Creating Recycled Polyester
That is where recycled polyester comes in. Recycled polyester (rPET) is created by melting existing water bottles and molding it into a fiber. Since the water bottles are made of PET, the newly created fiber is a form of polyester.
Recycled polyester is growing in popularity because it is more sustainable than normal polyester. Compared to normal polyester, recycled polyester reduces GHG emissions by 30%, water consumption by 20%, and energy consumption by 45%. The reduction in energy and water use has a direct effect on the amount of GHG emissions.
Why Recycled Polyester is Better
One of the main reasons why GHG emissions are reduced when creating recycled polyester is because of petroleum. Like mentioned earlier, polyester is a petroleum-based fiber. The use of petroleum and extreme temperature that the material is heated to contributes significantly to CO2 emissions.
Because the water bottles being used to create rPET are already a form of PET, petroleum is not needed. This allows rPET to be a more eco-friendly alternative to polyester.