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供给的PE保鲜膜安全无毒，用其制成的薄膜透水、透气适中，适宜食物保鲜，但一般PE保鲜膜也存在着缺陷，今天咱们来了解保鲜膜产品需求改善的方向。
The PE film supplied is safe and non-toxic. The PE film made of PE film is permeable, moderately permeable and suitable for food preservation. However, there are also some defects in the PE film. Today we come to understand the direction of improving the demand for fresh-keeping film products.
首要，PE保鲜膜是结晶材料，容易结晶，然后致使PE薄膜通明度、柔韧性、回缩性均较差，且难拉伸，而且因结晶也很难到达出色的防雾效果；再者，PE材料自身不具有黏性，所以黏性差，也因而致使浅盘底面黏着性差，易散盘。
First of all, PE film is a crystalline material, easy to crystallize, and then lead to PE film brightness, flexibility, shrinkage are poor, and difficult to stretch, and because the crystallization is also difficult to achieve excellent anti-fogging effect; furthermore, PE material itself does not have viscosity, so poor viscosity, also resulting in poor adhesion to the bottom of the shallow plate, easy to loose plate.
所以保鲜膜厂家要想提高产品的功能，必须下降PE薄膜的结晶度，以提高薄膜通明度、柔韧度、回缩性；再就是提高保鲜膜的黏性。
Therefore, if the manufacturers want to improve the function of the products, they must reduce the crystallinity of PE film to improve the brightness, flexibility and shrinkage of the film, and then to improve the viscosity of the film.
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