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发布时间: 2025-12-15 21:42
正文摘要:Sometimes, when a customer pulls the zipper to open a bag, the zipper stays closed, but the film rips away from the zipper base. This is a heat-sealing issue. The heat seal bar that attaches the zippe ... |
Bruce 发表于 2025-12-16 18:42 Alright, during the sealing process, do we need to check the bag weight? For example, if a coffee product is 500g, do we need to keep the sealing temperature stable according to that weight? |
| This should be a heat-sealing issue, in most cases, the sealiing temperature fluctuates in the bag-making process and make the sealing unstable. |
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