Optional: Colored felt is the use of pigments to process wool and fiber raw materials into different colors. It is the oldest form of fabric in human history, and its history can be traced back to at least 850 years before BC, at least 8,000 years old.

Colored felt is the use of pigments to process wool and fiber raw materials into different colors. It is the oldest form of fabric in human history, and its history can be traced back to at least 850 years before BC, at least 8,000 years old.

Wool felt is a non-woven form of fabric that has been used by humans earlier than textile, knitting and other techniques. The hair has both soft and tough properties, good fiber elasticity, comfortable touch and good reducibility. Because the wool felt products are folded, they can quickly return to their original shape and are not easily deformed. In addition, its fiber structure can be tightly entangled, and its tough characteristics do not need to be processed through knitting, sewing, etc., and can be completely integrated. The wool felt is elastic and can be used as a material for shockproof felts, sealing felts, felt liners and elastic wire felts. The industrial felt has good adhesive properties and is not easy to loose. It can be die-cut into a felt wheel felt ring felt pad. Various shaped felts can be made according to the drawings. Industrial wool felts have good insulation properties and can be used as thermal insulation materials. Due to the compact density of the felt, the stamping can be used to produce a variety of felt parts. The wool felt belt has better flexibility and can reach the specified length. The leather rolling belt and paper suction belt can be used. Felts have good thermal insulation and can be made into felt insole, upper felt and shoe felt. The felt is moisturizing and elastic, and can be made into a car door and window felt seal, a central door and window felt seal.