How are woven fabrics created?
Woven fabrics are made of two sets of yarns – a lengthwise set called the warp and a crosswise set called the filling or weft. The warp yarns are threaded into a loom through a series of frames called harnesses. During the cloth-making process, the harnesses raise some warp yarns and lower others. This action creates a space, or shed, between the yarns. A device called a shuttle carries the filling through the shed and so forms the crosswise yarns of the fabric. The pattern in which the harnesses are raised and lowered for each pass of the shuttle determines the kind of weave.