PE拉伸膜在日常生活中(zhōng)不僅可(kě)以代替其他(tā)的包裝(zhuāng)材料，并且對于易劃傷的物(wù)品具(jù)有(yǒu)非常好的保護作(zuò)用(yòng)，同時還可(kě)以降低包裝(zhuāng)費用(yòng)，因此非常受各行各業的歡迎。有(yǒu)很(hěn)多(duō)人都不理(lǐ)解為(wèi)什麽如此薄薄的一張膜有(yǒu)這麽大的抗刺穿能(néng)力呢(ne)？其實這裏面的原因很(hěn)簡單，就讓無錫PE纏繞包裝(zhuāng)膜為(wèi)您解答(dá)：

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(néng)與制造拉伸膜的工(gōng)藝是密不可(kě)分(fēn)的，相對于LLDPE/LDPE 樹脂仍能(néng)供給更好的成果。作(zuò)為(wèi)一種多(duō)功能(néng)樹脂，MPE 樹脂可(kě)在多(duō)層吹膜出産(chǎn)線(xiàn)、流延膜出産(chǎn)線(xiàn)和單層吹膜出産(chǎn) 線(xiàn)上發明價值。貢獻了可(kě)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(wèi)多(duō)，從單層發展到二層、三層；現在以流延法出産(chǎn)LLDPE拉伸膜為(wèi)主，又(yòu)因為(wèi)拉伸膜的分(fēn)子量分(fēn)布窄，加工(gōng)規模也窄，加工(gōng)條件難以控 制，一般添加5%的LDPE，以下降熔體(tǐ)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.

流延法出産(chǎn)具(jù)有(yǒu)厚薄均勻、透明度高等優點，可(kě)适用(yòng)于高倍率預拉伸的要求。因為(wèi)單層流延做不到單面粘，應用(yòng)領域受到局限。所以還 是以三層共擠的結構較為(wèi)志(zhì)向。出産(chǎn)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(zuò)材料中(zhōng)的茂金屬，茂金屬是一種能(néng)夠使纏繞拉伸膜的抗穿刺性能(néng)提高的材料，它能(néng)是纏繞拉伸膜變得不僅延展性高而且還能(néng)具(jù)有(yǒu)十分(fēn)強的抗穿刺能(néng)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(jù)有(yǒu)很(hěn)強的拉伸力也不足為(wèi)奇，但是市面上有(yǒu)很(hěn)多(duō)的廠家，各有(yǒu)各的生産(chǎn)方法，同時在生産(chǎn)的過程中(zhōng)鎖添加的茂金屬量也不盡相同，所以在成品出來之後的抗刺穿的能(néng)力也不盡相同，因此我們在購(gòu)買時一定要選擇一個合适的廠家，這樣才能(néng)保質(zhì)保量，如果選擇不合适，結果可(kě)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.