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發現纏繞膜有氣泡如何處理

作者：兴亚閱讀量：发布日期：2022/4/16 16:08:30

信息摘要：

纏繞膜上面一旦出現了很多的氣泡，這就非常影響我們的産品質量，有氣泡的纏繞膜肯定是質檢不合格的，是不能當作合格産品進行銷售的

纏绕膜上面一旦出现了很多的气泡，这就非常影响我们的产品质量，有气泡的纏绕膜肯定是质检不合格的，是不能当作合格产品进行销售的，所以我们在生产的过程中就要控制这一现象的发生，尽量避免。想要控制这些现象的发生，就需要找到产生气泡的原因，只有找到了原因，我们才能解决这个问题，通过所赐式样，纏绕膜厂家为我们找到了这些解决方法。一起来看看吧：

1、選擇合適油墨，提高塗布量

我們可以在生産中選擇合適的油墨，然後提高塗布量，增強膠水對薄膜的濕潤型，改善局部上膠缺陷。這樣可以提高複合軸的溫度和壓力，降低複合速度，增加浸潤時間和上膠時間等。

2、加強塗布量和塗布輥的管理

在制作纏绕膜的时候，我们可以对胶水、薄膜进行预热并升高复合压辊温度；同时清洗涂布辊，加强涂布量和涂布辊的管理。对于涂布辊一般新辊使用至500万米后要进行镀铝处理，3次再镀铬处理后进行再雕版处理，防止因涂布辊不足而引起的外观不良和剥离强度低下的问题。

3、定期更換塗布輥

爲了調整保護膜的粘度，要注意定期更換塗布輥，在合乎工藝要求的粘度範圍內，通過膠水固含量與塗布輥的配合來滿足塗布量的要求。並且調整幹燥條件，比如風速、溫度等等。另外，還要提高用于制造保護膜的塗布量和複合壓輥的溫度及壓力，提高壓滾的橡膠硬度，將壓輥的橡膠硬度增高到80-85℃之間。並將壓輥前導入薄膜的“包角”角度調整，盡量按切線方向進入複合輥。

4、采取防潮措施

在纏绕膜成型过程中采取防潮措施，比如保持环境干燥，固化剂密封包材等，也能对改善气泡问题起到一定的效果，从而大大提高纏绕膜的品质和使用效果。

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