影响食品包装袋平整度的因素有哪些

Writer： admin Time：2023-11-23 15:06 Browse：℃

　　Flatness is one of the indicators to measure the appearance quality of food packaging bags. In addition to material factors, the flatness of food packaging bags is also related to factors such as heat sealing temperature, heat sealing pressure, heat sealing time and cooling effect.

　　平整度是衡量食品包装袋外观质量的指标之一。食品包装袋的平整度除材料因素外，还与热封温度、热封压力、热封时间和冷却效果等因素有关。

　　If the heat sealing temperature is too high, the heat sealing pressure is too high, or the heat sealing time is too long, the composite film will shrink and deform. Insufficient cooling will result in insufficient setting after heat sealing, internal stress cannot be eliminated, and the bag will be wrinkled. Therefore, the process parameters should be adjusted and the cooling water circulation system should work normally.

　　如果热封温度过高，热封压力过高，或热封时间过长，复合膜会收缩变形。冷却不足会导致热封后凝固不充分，内应力无法消除，袋子会起皱。因此，应调整工艺参数，使冷却水循环系统正常工作。