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Effect Of Transverse Stretching Of PE Stretch Film On Film

        In the process of producing the film, in order to adjust the process conditions and change the film performance in time, the ratio of the width of the two guide rails after stretching the tenter transversely to the width of the two guide rails before stretching is defined as the film. Lateral stretch ratio. The transverse stretching of the film is mainly carried out in the stretching zone.

       The transverse stretch ratio of the film is determined based on the materials used and the use of the product. For the same material, usually a thicker film and a film with higher longitudinal strength, the transverse stretch ratio is smaller, and the transverse stretch ratio of the heat shrinkable film and the general packaging film can be larger.

        The transverse stretching of the PE stretch film is carried out in a hot and continuous environment in a primary and messy process. The transverse stretching process has a multi-stretching starting point, which is primarily due to some thin defect stretching rates in the transverse direction, as well as impurities, bubbles and appearance defects in the film.