What is the difference between snagging and pilling?

Snagging and pilling are two different problems commonly associated with the use of fabrics or textiles. Although they are both problems related to fabric appearance, they have different characteristics and causes.

1. Hooking (Snagging): Hooking refers to the appearance of tiny lines or pulling shapes on the surface of fabrics, which are usually caused by external forces that cause friction between yarns or fibers and other objects. Hooking may cause fibers on the fabric surface to be pulled or drawn out, creating visible fiber overhangs or blemishes. Hooking is usually caused by contact between the fabric and other sharp or rough objects, such as hooks, zippers, leather goods, etc., which cause catching and pulling of the fabric fibers.

2. Pilling: Pilling refers to small particles or fiber clusters appearing on the surface of the fabric, usually due to the fibers rubbing against each other in the process of use. Pilling occurs when the fibers on the surface of the fabric are rubbed or stretched, resulting in damage to the fibers and the formation of small ball-like aggregates. The degree and frequency of pilling depends on factors such as the type of fibers in the fabric, the weaving method and the conditions of use.

To summarize, both hooking and pilling are common problems with fabrics in use, but they have different causes and characteristics. Hooking is caused by friction between the fabric and sharp or rough objects, resulting in the fibers being pulled in lines or strains; while pilling is caused by friction between the fibers on the surface of the fabric, resulting in the formation of small particles or clusters of fibers.