Polymer Composition
Linear low density polyethylene stretch film defines a family of thermoplastic polymers engineered for high elongation and elastic recovery in load containment. This lldpe stretch film provides mechanical tension that secures secondary packaging by adhering to itself without requiring heat or adhesive coatings. The molecular chain architecture lacks long branches, allowing for a structure that resists puncture and tearing during the application of mechanical stress.
Mechanical Performance
Resistance to fracture remains the primary metric for verifying the suitability of a specific gauge for heavy duty pallets. This lldpe stretch film maintains integrity when wrapping irregular loads that present sharp edges or protruding components. Film orientation occurs during the stretching process, which increases the machine direction tensile strength while simultaneously reducing the thickness across the width of the web.
Production Parameter
Extrusion through a cast or blown die determines the final orientation and clarity of the substrate for high speed wrapping equipment. Manufacturers calibrate cooling rollers to control the rate of crystallization, which impacts the cling level and the final recovery force of the lldpe stretch film. Uniform gauge control prevents breaks on automatic machines that run at high cycles.
Precise control of the resin grade directly correlates with the ability of the material to maintain high containment force over long storage periods.
