PE拉伸膜在日常生活中不僅可以代替其他的包裝材料，并且對于易劃傷的物品具有非常好的保護作用，同時還可以降低包裝費用，因此非常受各行各業的歡迎。有很多人都不理解為什么如此薄薄的一張膜有這么大的抗刺穿能力呢？其實這里面的原因很簡單，就讓無錫PE纏繞包裝膜為您解答：

Winding film can not only replace other packaging materials in daily life, but also have a very good protective effect on easily scratched items, but also reduce the packaging cost. Therefore, it is very popular in all walks of life. Many people don't understand why such a thin film has such great puncture resistance? In fact, the reason is very simple. Let Wuxi PE winding packaging film answer for you:

其實PE拉伸膜的抗穿刺性能與制造拉伸膜的工藝是密不可分的，相對于LLDPE/LDPE 樹脂仍能供給更好的成果。作為一種多功能樹脂，MPE 樹脂可在多層吹膜出產線、流延膜出產線和單層吹膜出產 線上發明價值。貢獻了可持續發展行。

In fact, the puncture resistance of PE stretch film is inseparable from the process of manufacturing stretch film. Compared with LLDPE / LDPE resin, it can still provide better results. As a multifunctional resin, MPE resin can be used in multi-layer blown film production line, cast film production line and single-layer blown film production line. Contributed to sustainable development.

前期LLDPE拉伸膜以吹膜為多，從單層發展到二層、三層；現在以流延法出產LLDPE拉伸膜為主，又因為拉伸膜的分子量分布窄，加工規模也窄，加工條件難以控 制，一般添加5%的LDPE，以下降熔體粘度，添加拉伸膜的平整度。

In the early stage, LLDPE stretch film was mostly blown film, developing from single layer to two and three layers; Now LLDPE stretch film is mainly produced by tape casting method. Because the molecular weight distribution of stretch film is narrow, the processing scale is also narrow, and the processing conditions are difficult to control, 5% LDPE is generally added to reduce the melt viscosity and the flatness of stretch film.

流延法出產具有厚薄均勻、透明度高等優點，可適用于高倍率預拉伸的要求。因為單層流延做不到單面粘，應用領域受到局限。所以還 是以三層共擠的結構較為志向。出產出的拉伸膜厚薄均勻，拉力好，不容易開裂。

Tape casting production has the advantages of uniform thickness and high transparency, which can be applied to the requirements of high magnification pre drawing. Because single-layer tape casting can not do single-sided adhesion, the application field is limited. Therefore, the three-layer co extrusion structure is more ambitious. The tensile film produced has uniform thickness, good tensile force and is not easy to crack.

其實，纏繞拉伸膜的拉伸延展性還是取決于纏繞拉伸膜制作材料中的茂金屬，茂金屬是一種能夠使纏繞拉伸膜的抗穿刺性能提高的材料，它能是纏繞拉伸膜變得不僅延展性高而且還能具有十分強的抗穿刺能力。

In fact, the tensile ductility of the winding tensile film still depends on the metallocene in the manufacturing material of the winding tensile film. Metallocene is a material that can improve the puncture resistance of the winding tensile film. It can make the winding tensile film not only have high ductility, but also have very strong puncture resistance.

根據以上緣由，PE拉伸膜具有很強的拉伸力也不足為奇，但是市面上有很多的廠家，各有各的生產方法，同時在生產的過程中鎖添加的茂金屬量也不盡相同，所以在成品出來之后的抗刺穿的能力也不盡相同，因此我們在購買時一定要選擇一個合適的廠家，這樣才能保質保量，如果選擇不合適，結果可想而知，肯定是不如人意。

According to the above reasons, it is not surprising that PE stretch film has strong tensile force, but there are many manufacturers in the market, each with their own production methods. At the same time, the amount of metallocene added to the lock in the production process is also different, so the puncture resistance of the finished product is also different. Therefore, we must choose a suitable manufacturer when purchasing, so as to ensure the quality and quantity. If the selection is not appropriate, The result can be imagined. It must be unsatisfactory.