Ultrasonic welding of non-woven materials is very fast and stable, repeatable, and can be started immediately without preheating. This technology can complete the three processes of imprinting, lamination and cutting. The use of ultrasonic stacking materials is soft to the touch, meeting all the requirements of wearing comfort and functionality. The forming welding process is required in the production of different styles of disposables. The product is smooth and soft, without hard edges, and strong adhesion between layers is the most basic requirement. Ultrasonic cutting can be used without burrs and the cut surface is clean and tidy. In addition, when ultrasonic imprinting is used, the soft surface is not damaged.