PlastfriIs acrylic fabric plastic?
Yes — acrylic is plastic, and among the worst microfiber shedders of any fabric. Think of it as plastic imitation wool.
What acrylic actually is
Acrylic fiber is at least 85% polyacrylonitrile, a polymer made from propylene (from oil refining) and ammonia. It is spun to mimic wool at a fraction of the price, which is why cheap sweaters, beanies, scarves, and blankets are so often acrylic.
Why it stands out — in a bad way
In University of Plymouth wash tests, acrylic shed more microfibers than polyester or poly-cotton blends — up to ~730,000 fibers in a single wash. Acrylic knits also pill quickly, so garments look worn out fast and get discarded fast.
Acrylonitrile, the feedstock monomer, is classified as a probable human carcinogen in occupational-exposure contexts. That is a production concern more than a wearing concern, but it is part of the fiber’s footprint.
How Plastfri scores it
Acrylic scores 100/100. A “70% acrylic, 30% wool” sweater scores 70.
- Wool
- Merino
- Cashmere (secondhand)
- Cotton knits
Common questions
Does acrylic keep you as warm as wool?
It insulates when dry but loses badly to wool when damp, and it holds odor. Wool stays warm when wet and resists smell naturally.
Why is acrylic so common in cheap knitwear?
It costs a fraction of wool, takes dye brilliantly, and machine-washes without felting. The tradeoffs are shedding, pilling, and a short garment life.
Plastfri spots acrylic for you. Scores every product while you shop — covers, dims, or labels the high-plastic ones.
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