The world's spunbond non-woven fabrics mainly include Leccofel technology from Leifen, Germany, STP technology from Italy, and Kobe steel technology from Japan. The current situation, especially with Reifen technology, has become the mainstream technology in the world. The fourth generation technology has been developed. It is characterized by the use of negative pressure super-high-speed air drafting, and the fiber can be stretched to about 1 denier. Many enterprises in China have already carried out imitation. Due to the fact that many of the core technologies have not been solved or mastered, it will take time for domestic equipment manufacturers to reach the technical level of Reifen.