Microplastics in Clothing
Microplastics in the fashion industry are a hot topic, justly so. Microplastics from textiles, commonly known as microfibers due to their fiber shape, account for between 16-35% of all microplastics released globally each year. That’s equal to between 200,000 and 500,000 tonnes of microplastics in the ocean. In Europe alone, 8% of all microplastics come from textiles. If the fashion industry continues as is, between the years 2015 and 2050, 22 million tonnes of microfibres will enter our oceans.
How are microplastics coming from clothes?
Fibers are “shed” from textiles while they are in use. You shed microfibers into the air just by wearing your garments. All textiles shed fibers, however, oil-based synthetic fibers are harmful to the environment as they don’t break down in nature.
Until the Edwardian era (1900-1910), clothing and textiles were onlymade of natural fibers such as cotton, wool, silk, etc. The early 20th century brought synthetic fibers. Nylon, the first oil-based synthetic fiber, arrived in the 30s. Polyester came shortly after, followed by many other synthetic fibers (Wikipedia).
As the population of the United States has quadrupled since 1900, textile consumption has multiplied 30 times as much. The current global consumption rate of clothes is more than 30 pounds per person annually. In the US, it is more than 100 pounds. The majority is synthetic fibers.
Microplastics and the production of textiles
The production processes of synthetic fibres, yarns, fabrics and products play a part in the release of microfibers. In 2016, 100 million tons of textiles were produced across the globe, 62.7% being polyester fibers (Ecori).
Companies can have the most impact if they take microfibre release into consideration at the design and manufacturing stages (Fashion Revolution). Care should be taken to source materials that have a minimal release of synthetic microfibers into the environment. A good quality design would ensure a garment has a long life cycle, requires less washing and is less likely to end up in a landfill.
Several methods can be applied during the manufacturing process to reduce microfibre shedding. Brushing the material, using laser and ultrasound cutting, coatings and pre-washing the garments can all reduce microfiber shedding.
Evidence also shows that the majority of microfiber shedding comes in the first washes. Pre-washing textiles would allow the manufacturer to catch microfibers before they leave the facility.
What fabrics release microfibers?
All fabrics shed microfibers- even natural fibers. But since synthetic textiles are made from petroleum, the fibers which are shed are plastic. Nylon, polyester, rayon, spandex, acetate, and acrylic, are just a few of the fabrics that shed microplastics. Having a mix of both natural and synthetic fabrics also means the fibers shed will be plastic.
The way the fabric is woven also affects its’ shedding. Fabrics that are tightly woven, with longer fibers, will shed less and more slowly, whereas short, loose-weave fibers shed quicker (EEA). Fleece, a plastic-based, fluffy cloth, is the worst offender of microplastics.
Watch out for that “Wool Blend” label. While it might be named wool, the percentage of wool is likely very small and is blended with a mix of synthetic fibers. Always check the fabric content on your labels!