How liquid filter bag plastic ring is welded on filter bag cotton？

Liquid filter bag plastic ring and filter non-woven fabric together by ultrasonic welding technology, and the whole running time is about 10s.Therefore, there is no pollution problem caused by the traditional sewing process due to the need to cool the high-speed sewing thread with silicone oil, and there is no side leakage caused by needle holes.

The plastic ring produced by the special mold opening is made of high-quality PP engineering plastics, with good performance and good welding effect.

The plastic ring mouth ring and the non-woven fabric are crimped together to replace the needle sewing process and play a role of firm sealing.