复合包装袋的白点和气泡是怎么回事?2023/11/13
白点气泡:①干燥不充分White spot bubbles: ① Insufficient drying②上胶量不足:督办、复溶性差、转移率下降。。 薄膜太厚② Insufficient glue application: poor supervision, poor solubility, and decreased transfer rate Thin film too thick③复合后胶未流平:胶分子量大、熟化不够,复合热辊温度太低、气温较低而预热辊没用③ After compounding, the glue is not leveled: the molecular weight of the glue is large
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