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纏繞膜爲何會出現拉斷的情況？

作者：閱讀量：发布日期：2020/6/17 10:41:10

信息摘要：

纏繞膜在物流行業中的運用十分廣泛，幾乎所有的商品都可以使用纏繞膜進行包裝，但是在物流運輸中一直都是追求緊張高效的，因此包裝速度肯定也需要更快一些，但是很多人發現使用纏繞膜進行快速包裝的時候，往往會出現纏繞膜斷裂的情況，這是怎麽回事呢？其實纏繞膜斷裂的原因有很多，但是終究其原因還是與纏繞膜廠家有關系。那麽纏繞膜廠家在制作的時候都是如何制作的呢？

一般情況下，纏繞膜這種聚乙烯的共混料要在一百攝氏度下進行熱灌裝，否則在灌裝的拉力下即便不拉斷，也會出現較大的拉伸變形。通常這種液體灌裝膜最佳運用耐溫性較高，強度較好的共擠拉伸膜，例如尼龍粘接性樹脂/PE，內層盡管是PE，但外層爲尼龍膜，可耐熱、強度高，不能運用熔斷機來熔封並熔斷口袋。運用PP/EVA/PE共擠膜能夠熔斷，不過熱封溫度在一百九十攝氏度到兩百攝氏度較高。厚度應恰當提高到八十微米到九十微米，以確保複合膜強度。

另外一個原因那就是我們在使用纏繞膜的時候拉力過大了，然後就導致纏繞膜出現了斷裂。我們都知道纏繞膜一般都能夠達到百分之三百到百分之五百左右的拉伸性，但是如果一旦超出了這個程度那就會導致纏繞膜斷裂。很多客戶會認爲生産過程中改變了生産原料而導致了拉伸膜的質量問題，但原因並非如此。通常會導致拉伸膜在使用過程中被拉斷的原因還是比較多的，像一些産品本身的問題或者是人爲的外在因素都有可能導致其産品在使用過程中被拉斷，影響其正常使用。

一般來說，只要是正規廠家的話，纏繞膜的質量都是十分優秀的，例如纏繞膜生産的纏繞膜質量非常好，能夠使纏繞膜的拉伸率達到驚人的百分之五百，大大減少了纏繞膜被拉斷的幾率。

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纏繞膜爲何會出現拉斷的情況？

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