| 摘要 |
Layers of heat sealable material are pressed between opposed jaws, cut through, and simultaneously the edges along each side of the cut line are sealed using an improved impulse sealer and method wherein a narrow, internal cooling vein(s) or channel(s), defined near the working interface of the jaws, is cooled by a pressurized stream of refrigerated gas to provide forced cooling to the sealed edges during the cooling portion of the sealing cycle.
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