A 7-layer film is one where seven extruders are simultaneously extruding polymers to form
7 concentric rings of molten polymers that solidify to form one film. If the film cross-section
is seen under a microscope, seven separate layers can be observed. As per technology
and scientific improvements in the blown film industry, an increased number of layers
always provides enhanced properties and control in making technical & specialized films
for the agricultural/ packaging industry.
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