Blog

Why does knitwear pill – four most common reasons

16.11.2021

Pilling

Have you ever wondered why even the expensive knits begin to pill and look horrible sooner or later? Even the expensive brands save costs in materials because it is not so easy to see the quality before actually wearing the clothes for some time.

Pilling happens when the surface of knitwear becomes fluffy and loose fibres catch with each other forming the pill-balls.

Pilling is caused by four main reasons: coarsiness, shortness and curliness of the fibre …and loose knitting.

Why does knitwear pill? First reason: Coarse fibre 

All the wool fibres have scales on their surface. The bigger the scales, the more easily the fibres will lock with each other. The fibres with bigger scales will also feel less comfortable on skin. 

At Alpa in many of our garments we are using 100% alpaca wool. The alpaca wool is the smoothest surfaced fibres of all wool fibres. Thanks to this special fibre our knits feel very pleasant and are resistant to pilling.

Why does knitwear pill? First reason: Short fibre 

When knit is made with cheap, short fiber, there will be a lot of loose fiber ends on the surface of the knit. More ends mean more pills. When looking at a knit in shop, try pulling a fiber out of the knit and see the length of it. Cheap knits may feel very nice in shop but will look horrible after a couple of days.

Alpaca wool is precious and has very long fibers – single fibers can be even 5-10cm long.

Why does knitwear pill? Third reason: Curly fiber

The fibers will also be entangled because of curly fibre. From curly fibre (for example lambswool) it is easy to create volumous chunky sweaters, but the downside is excessive pilling.

(Alpaca wool is rather straight and slippery. Because of that it is very pill resistant but requires special knowledge in knitting and spinning the yarn.)

Alpaca fibre is smooth and straight

Why does knitwear pill? Fourth reason: Loose knitting

The more dense the knit the shorter is the fluffy surface of the knit. Short fibre ends cannot entangle to each other. Densely knitted poor quality fibre will be resistant to pilling but feel inferior against your skin. Knitwear of poor quality is often knitted loosely and the pilling will occur shortly after purchase.

If you are searching for long lasting knitwear you should choose knits that are knitted more densely.

Examples of Alpa knits in use:

Twilight, worn for over 100 days. Dense 100% alpaca knit looks as good as new. No pills – just some minor surface fluff.
Crew Neck, 150 days of use. Crew Neck is knitted a bit more loosely so it has softened significantly. Thanks to the alpaca fibre it is still looking very nice. Better than new, if you ask us.

We personally test use every of our knit model for several months. This is why we guarantee that every Alpa garment will age beautifully.

Join the inner circle of Alpa

Subscribe to our newsletter, be among the first to receive the best offers and get involved in the design of our products if you wish. Get 20€ personal discount code to your email for the first order in our online store.