Pilling
Pilling refers to the undesirable occurrence of small pills or fibers on the surface of textiles. These pills can affect the appearance of fabrics, making the surface uneven or worn.
Properties:
Pilling typically occurs on textiles made from fibers that easily twist or loosen. This commonly happens with synthetic materials like polyester, but also with natural fibers such as cotton and wool. The pills or fibers that form can vary in size, from tiny dots to visible balls.