What are the basic performance and technical requirements of film blowing? The disposable environmental protection tableware manufacturer will tell you!

　　1.物理機械性能

　　1. Physical and mechanical properties

　　由于吹塑聚乙烯薄膜用于印刷或復(fù)合加工過程中，要受到機械力的作用，因此，對聚乙烯薄膜的物理力學(xué)性能的要求應(yīng)良好，主要包括抗拉強度、斷裂伸長率、撕裂強度等指標(biāo)應(yīng)符合標(biāo)準(zhǔn)。

　　As blow molded polyethylene film is used in printing or composite processing, it is subject to mechanical force, so the physical and mechanical properties of polyethylene film should be good, including tensile strength, elongation at break, tear strength and other indicators should meet the standard.

　　2.外觀

　　2. appearance

　　要求聚乙烯薄膜塑化良好，無明顯“水紋”和“云霧”;薄膜表面應(yīng)平整光滑，無褶皺或僅有少量活褶皺。不允許有氣泡、穿孔或破裂;無明顯黑點、雜質(zhì)、晶點、硬塊;不允許有嚴(yán)重的掛起和線程。

　　It is required that the polyethylene film should be well plasticized without obvious "water lines" and "clouds"; the surface of the film should be flat and smooth without folds or only a small amount of active folds. No bubble, perforation or fracture; no obvious black spot, impurity, crystal point, hard block; no serious suspension and thread.

　　3.規(guī)范和偏差

　　3. Specifications and deviations

　　聚乙烯薄膜的寬度和厚度應(yīng)符合要求。薄膜的厚度應(yīng)該是均勻的。水平和垂直薄膜的厚度偏差應(yīng)較小，且偏差分布應(yīng)相對均勻。

　　The width and thickness of polyethylene film shall meet the requirements. The thickness of the film should be uniform. The thickness deviation of horizontal and vertical films should be small, and the deviation distribution should be relatively uniform.

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　　The above is about disposable environmental protection tableware. If you want to know more, please visit the website: http://m.qylxschool.cn