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The primary difference between these two types of Stretch Wrap Film is the process in which they are created and manufactured. These differences also make a big impact on the usability and price of the film.
Beads of resin are fed through a heated machine that has a circular die. The heated resin is forced through the die and then blown out vertically into a bubble. As this formed bubble finishes the process of being transformed into rolls of Stretch Film, it is cooled by the surrounding air. This type of film generally costs more to make because the output per hour is less than with cast films. Our blown hand stretch film is a common example of this type of film. It has a much higher rating than our cast hand film for holding power and puncture resistance.
The cast process beings the same as blown, with beads of resin being fed into a heated barrel and being forced through a narrow slotted die. This 'sheet' of film the die produced is then fed along a rolling path that has been cooled, which solidifies the film. It is then brought through the final stages of production and made into large rolls. This method is much faster than the blown extrusion method and also costs less, as more can be produced per man hour. Machine stretch wrap is the most common type of film produced by this method.
September 26, 2024
June 14, 2019
July 26, 2022
Many customers will ask what is the production process of stretch film? As a manufacturer of stretch film in China, the pallet wrap stretch film of YalanPackaging belongs to the casting process,...
Nowadays, when more and more customers purchase stretch film, they not only require strong elongation rate and high puncture resistance, but also require the stretch film surface layer to be soft and...
What is the advantages of stretch film? 1. The use of stretch film can reduce the amount of waste treatment. While packaging the same goods, the amount of pre-stretch wrapped film is significantly...
The production process of the stretched film is mostly the casting process. The production and manufacturing of the casting line has the advantages of uniform thickness and high definition, and can...
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September 26, 2024
June 14, 2019
July 26, 2022
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.