热处理后袋子表面的气泡

Bubbles on the Bag Surface after Heat Treatment

热处理后，在袋子表面显现气泡的基本原因是复合膜间存在高温条件下可气化的物质，而已经固化了的粘合剂中不存在高温条件下可气化的物质。对于铝／塑结构的耐水煮袋、耐蒸煮袋的气泡问题，不宜使用同一卷印刷膜和同一卷铝箔以及不同的粘合剂进行所谓对比试验的方式。

After heat t s that the composite film r no gasification under high water-resistant packaging eatment, the bas is gasifiable unde temperature cond and retort packa ic reason for r high temper itions.For the ging,it is not the appearance of bubbles ature conditions, while the bubbles of aluminum / pla suitable for so-called com on the bag surface cured adhesive has stic structure of the parative test to use the same roll of printing film ,aluminum foil and different adhesives.