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Difference between wire stitch upper ring and hot melt upper ring

Thread sewing on the ring: It is a more traditional mode to put on the ring. As the sewing machine needle needs to penetrate the mouth of the plastic rubber ring, if the penetration is too compact, it makes the ring mouth easy to fall off during work, and the penetration is too sparse, it will cause the filtrate to leak.

Heat fusion upper ring: using heat fusion technology, the non-woven fabric and plastic rubber ring perfect fit, this welding process, the sealing is particularly good, solve the phenomenon of liquid leakage filter, is a major new breakthrough in solving the filter bag ring mouth processing.

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