The yarns that run the width of a fabric are called what?

The yarns that run the width of a fabric are referred to as weft yarns, which are correctly identified in the context of fabric construction. In weaving, the process involves two main types of yarns: warp yarns and weft yarns.

Warp yarns are the threads that run lengthwise or vertically in the fabric, while weft yarns (or fill yarns) are those that are woven across the warp yarns from side to side, creating the width of the fabric. The weft is typically inserted over and under the warp in a specific pattern, contributing greatly to the fabric's overall design and texture.

In this context, understanding fabric construction is essential for those in housekeeping and textile management, as it helps in the selection and maintenance of linens and textiles used within the industry.