uldhår

Uldhår is a term used to describe the coarse outer guard hairs found in the fleece of sheep and other wool-bearing animals. These hairs are distinct from the finer undercoat, which is typically softer and more desirable for textile production. Uldhår are generally longer, thicker, and less crimped than the undercoat fibers. Their primary function in the animal is protection, acting as a barrier against weather, dirt, and physical abrasion.

The presence and proportion of uldhår can vary significantly between different breeds of sheep. Some breeds, such as those primarily raised for meat, may have a higher percentage of uldhår, while breeds specifically developed for wool production often possess fleece with a greater proportion of fine undercoat fibers. This variation impacts the quality and suitability of the wool for different applications.

In wool processing, uldhår are often considered a contaminant. They can reduce the softness, handle, and spinning potential of the final wool product. Therefore, during sorting and scouring processes, efforts are made to remove or minimize the presence of uldhår. However, in some traditional crafts or specific types of textiles, the coarser uldhår might be intentionally incorporated for texture or durability. The term is primarily descriptive and not indicative of any specific breed or processing method on its own.