Brushing and Napping

Physical delustering of a fabric as well as bulking and lofting of the fabric can be achieved by treatments which roughen the fiber surface or raise fibers to the surface. 

Fiber raising processes such as brushing and napping involve use of wires or brushes which catch yams in the textile stmcture and pull individual fibers partly from the yam structure. The resulting fabric is warmer, more comfortable, and softer. 

---

Physical finishing methods for textiles include optical finishing, brushing and napping, softening, shearing, and compacting of the textile structure. 

---