felt
Felt is a sheet-like or three-dimensional structure made of feltable fibers, especially hair and wool.
According to DIN 61205, a distinction is made between:
1. Needle felt: Created by repeatedly inserting and withdrawing a large number of needles and barbs into a fiber mass (fiber web), which causes the fibers to interlock (mat together).
2. Fulled felt: Created by fulling and pressing a tangled fiber mass (felt fleece) of wool (wool felt) or other animal hair (hair felt) or a hair-wool blend (mixed felt).
3. Woven felt: Created by laying or blowing animal hair (on one or both sides) onto a wool fabric, followed by felting and fulling.
4. Felt cloth: Created from a fabric of feltable fibers that is subjected to a felting process.
