It's everywhere on the racks in ready-to-wear boutiques. Polyester is one of the most widely used textiles in the world, but is it really a good material? Between promises of durability, ecological concerns, and sometimes questionable comfort, it divides opinions. Here's a comprehensive overview to clarify things.

What is polyester?

Origin and manufacture of polyester

Polyester is a synthetic fiber made from petroleum derivatives, specifically polyethylene terephthalate (PET). It was invented in the 1940s and quickly established itself as a leading material in the textile industry due to its low cost and high resistance.

Its manufacture involves a series of complex chemical reactions, where petroleum is transformed into solid filaments, which are then woven to create fabrics. This process, while efficient from an industrial point of view, is also criticized for its environmental impact.

Different types of polyester

There are several types of polyester. The most common is virgin polyester, made from fossil resources. There is also recycled polyester, mainly from PET plastic bottles. The latter is presented as a more sustainable alternative, although it still has some limitations.

The advantages of polyester

Resistance and durability

One of polyester's biggest assets is its strength. It is highly resistant to friction, tears, and wear and tear over time. This is why it is often found in sportswear, jackets, and backpacks.

Ease of maintenance

Polyester is easy to wash, dries quickly, and hardly creases. For people looking for practical everyday clothes, this is a real plus. No need for intensive ironing: a simple machine wash is often enough.

Accessible cost

Since it is inexpensive to produce, polyester helps to reduce manufacturing costs. The result: affordable clothing for consumers, which partly explains its popularity in fast fashion.

Versatility in fashion and sport

Polyester can be blended with other fibers such as cotton or elastane to improve flexibility or comfort. It is therefore suitable for a wide variety of garments, from leggings to shirts, including technical clothing.

The disadvantages of polyester

Environmental impact

Polyester is derived from petroleum, a non-renewable resource. Its production consumes a lot of energy and water, while emitting greenhouse gases. Moreover, it releases microplastics with each wash, which end up in the oceans.

Comfort and breathability

In terms of comfort, polyester is not always up to par. It tends to trap heat and moisture, which can cause discomfort, especially in summer. It does not allow the skin to breathe as well as cotton or linen.

Sweating and static electricity problems

It can also promote perspiration and release odors more quickly. Furthermore, polyester has an unfortunate tendency to generate static electricity, especially in dry weather.

Is polyester ecological?

Recycled polyester: a solution?

Recycled polyester (rPET) is made from post-consumer plastic, such as water bottles. It helps to reduce the environmental impact compared to virgin polyester, but it doesn't solve everything. Its production remains energy-intensive, and rPET clothing also releases microplastics.

Comparison with natural materials

Compared to cotton, polyester has the advantage of using less water in manufacturing, but it is less biodegradable. Linen or hemp, grown locally and without chemicals, remain more environmentally friendly in their untreated version.

Impact on plastic pollution

Once discarded, a polyester garment can take several hundred years to decompose. Worse still, each wash releases fine plastic particles that escape washing machine filters and end up in the sea. This is one of the major current environmental challenges.

What are the alternatives to polyester?

Natural materials: cotton, linen, hemp

Organic cotton, linen, and hemp are interesting options for those looking for more ecological clothing. These fibers breathe better and are biodegradable, which limits their impact once discarded.

Semi-synthetic materials: viscose, lyocell

Viscose (or rayon) is made from wood cellulose. Lyocell, a more modern fiber, is manufactured using a closed-loop process (without pollutant emissions). These fibers are softer and more breathable than polyester, while being made from renewable materials.

Innovative materials: bio-based or recycled fibers

New fibers are emerging: based on algae, bananas, or even agricultural waste. They are still expensive, but promise to change the textile industry in the years to come.

So, is polyester a good material?

For what uses is it suitable?

It depends on the use. Polyester is practical, resistant, and affordable, making it a good option for technical clothing, sportswear, or everyday wear. But if comfort, ecology, and long-term durability are your priorities, there are better alternatives.

The right compromise: choosing consciously

Rather than completely rejecting polyester or blindly favoring it, it is best to make informed choices. Opting for durable, well-cut clothes, for example in recycled polyester, can be a good compromise. And when possible, prioritize more natural materials for comfort and the environment.

Conclusion

Polyester has its advantages, especially its robustness and low cost. But its environmental impact and limited comfort call for more conscious consumption. By combining information and common sense, everyone can make more sustainable textile choices… without sacrificing style or practicality.

Here's a video on 5 things to know about polyester:

FAQ: our team answers all your questions

Is polyester good for the skin?

Polyester can suit most skin types, but it is less soft and breathable than cotton or lyocell. Sensitive skin may prefer natural fibers.

Does polyester keep you warm or cold?

It keeps you rather warm, as it retains moisture and body heat. Ideal in winter, less pleasant in summer.

Can polyester be washed at high temperatures?

No, polyester does not tolerate high temperatures well. It is recommended to wash it at a maximum of 30 or 40°C to prevent it from deforming.

Is polyester biodegradable?

No, polyester is not biodegradable. It takes several centuries to decompose, which contributes to plastic pollution.

What is the difference between polyester and recycled polyester?

Recycled polyester is made from used plastics, which reduces petroleum use and waste. But both remain non-biodegradable synthetic fibers.