Blown Film Extrusion

Blown film extrusion is a process that involves melting plastic pellets and extruding them through a circular die. As the plastic is extruded, the air is blown into the center of the die, causing the molten plastic to expand into a bubble or tube.

The tube is then cooled and collapsed, creating a thin film that can be wound onto rolls for further processing or use. The thickness of the film can be controlled by adjusting the speed of the extruder, the airflow, and the size of the die.

Materials Used in Blown Film Extrusion

Blown film extrusion can be used with a wide range of plastic materials, including low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), and polystyrene (PS). The choice of material depends on the application and the desired properties of the film.

Hanotech's Solutions

PE Filler Masterbatch: for mono-layer film and ABA multi-layer film
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Black Masterbatch
Color Masterbatch
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Applications

Shopping bags
Garbage bags
Courier bags
Food packaging
Greenhouse film
Mulch film