structural:expansion
Weft insertion in power looms

Different types of power looms are most often defined by the way that the weft, or pick, is inserted into the warp. Many advances in weft insertion have been made in order to make manufactured cloth more cost effective. Weft insertion rate is a limiting factor in production speed. As of 2010, industrial looms can weave at 2,000 weft insertions per minute.

There are five main types of weft insertion and they are as follows: