Polyester fiber is another great invention by humans, alongside the light bulb and the internal combustion engine! Though it may seem inconspicuous by comparison, it is always present in our daily lives.
The first appearance of polyester dates back to 1894 when Vorländer first produced polyester. However, it had a low melting point and was easily soluble in water, making it unsuitable for textiles. As time passed, polyester was gradually manufactured in more advanced forms. It wasn't until 1941 that two British gentlemen, Whinfield and Dickson, synthesized polyethylene terephthalate (PET). This polyester had excellent properties, and its value was quickly recognized. From then on, polyester made its way into the world and continued to develop and improve.
If you're curious why we wear clothes or use fabrics made of polyester fiber every day, it's certainly because the advantages of polyester fiber are countless.
For instance, polyester fabric has high tensile strength, making it resistant to tearing and extremely durable, which also makes it economically advantageous. Additionally, polyester fiber has moderate elasticity and excellent thermal stability, ensuring that polyester fabrics do not easily deform in most usage scenarios. If you have experienced it in your daily life, you would have noticed that clothing made from polyester is wear-resistant and washable. It also resists organic solvents, soaps, detergents, bleach, and oxidants, along with having excellent corrosion resistance, showing almost no change when exposed to strong acids and bases. These stable properties make polyester a superb material for manufacturing both furniture textiles and clothing.
Although polyester is excellent, it doesn't mean everything comes without a cost. It seems that whenever people benefit from a new technology, there's a cost being incurred somewhere unknown to them, and often, nature bears this cost. Polyester is non-biodegradable, meaning it's difficult to decompose in the natural environment, potentially leading to long-term environmental pollution. When washing polyester clothing, tiny plastic fibers may be released into the water, causing microplastic pollution and affecting aquatic ecosystems.
People have become aware of the issue and are actively seeking ways to mitigate pollution using existing methods. For example, using recycled materials to manufacture polyester fiber fabrics not only reduces plastic waste pollution in the natural environment but also helps alleviate the dependency on petroleum in the polyester manufacturing process.
Undoubtedly, the emergence of polyester has improved various aspects of our lives. Its lightweight, softness, and durability allow us to choose our clothing more freely, travel in more personalized ways, and face various weather conditions with greater ease. I believe that in the days to come, polyester will continue to evolve and progress, appearing in unexpected forms and shapes, quietly influencing our lives.
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