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要如何對真空袋外觀進行檢測

2020/12/29 分類:行業資訊 1834 0

真空袋是我們日常生活中常見的一種包裝，很多家庭都或多或少都有真空袋，以方便保存食物或者其它産品。

然而我們在購買的時候，必須要要注意真空袋的外觀，看是否符合我們對于它爲産品包裝帶來的特性要求。那麽正常情況下要怎麽對真空袋的外觀進行檢測呢?具體通過三個方面來檢查：

首先是真空袋平整度的檢查：將真空袋單個置于平整的桌面上,如果表面彎曲,向外翹或向內拱,則說明平整度差,反之則說明平整度良好。造成平整度差的原因一般有以下幾點:制袋溫度偏高,已破壞複合袋內層的應力挺度;結構組成不合理;材料本身厚薄不均等。

其次是真空袋透明度的檢查：有些産品由于大面積無圖案,透明度顯得尤爲重要。透明度的檢測方法是:抽取一張成品袋,透過室內間接光源觀察,如果空白處有“麻點”、“環狀物”、“霧狀”等現象,則說明透明度差,反之表明透明度良好。推薦閱讀：真空包裝袋是否達標要如何進行辨別呢

最後是真空袋袋面拉絲的檢查：將真空包裝袋放置手中央,對准40w日光燈輕輕晃動,通過複合袋表面的反射光,即可清楚地發現真空包裝袋表面是否有劃傷或痕迹,業內常常稱爲“袋面拉絲”。拉絲現象多半是由制袋機牽引導輥不幹淨造成的,因此一定要保證導輥幹淨。此外,導輥不轉動同樣會使真空包裝袋産生拉絲故障。

以上是对于“要如何對真空袋外觀進行檢測”的介绍，希望对您有所帮助。飞富润包装彩印是一家专业的真空袋生产厂家，若您有需要的话可直接联系在线客服，获取相关资料。

本文出自泉州市飛富潤包裝彩印有限公司，轉載請注明出處：/2019.html

上一篇: 真空包裝袋是否達標要如何進行辨別呢下一篇: 从哪些方面选择鋁箔袋厂家

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