Felting as technique has been developing since ancient times. Methods knowledge has endured to this day. Modern masters, on the other hand, are constantly refining felting, frequently extending existing techniques or introducing new compilation approaches.
The wool is one of the most important natural raw materials, which was one of the first raw materials used by mankind for clothing and livelihood needs. Heat retention and moisture protection are two natural advantages of wool soft elastic fibers. Wool is one of the most important animal fibers, with an estimated annual production of about 6% of the total production of textile fibers (Alsakhawy, 2020). Usage of wool might reduce production of artificial fabrics, resulting in decrease of environmental risks.
Sheep wool fibers, which are made up of keratin and fibrous protein, are the most common material used to produce felt. Felts are pieces of adhesive-bonded fabrics made of wool or animal hair that are humidified, heated, and forced together by physical means (Chen, 1984). Felting is based on the theory that under the action of external forces, the scaly structure on the surface of wool fibers can be intertwined and shrunk to stay with one other, forming the stable felt texture (Xin & Bian, 2014).