The difference between the sewing ring of the filter bag thread and the top hot melt ring

Sewing loop:

It’s a more traditional loop mode. Since the needle of the sewing machine needs to penetrate the mouth of the rubber plastic ring, if the penetration is too tight, the ring will fall off easily during work and the penetration is too low, which will cause the filtration to leak.

Top thermofuse ring:

Using hot melt technology, the non-woven fabric and plastic apron come together. This welding process has a particularly good sealing performance, solves the liquid leakage phenomenon, and is a new advance in the filter bag ring treatment solution.