The production of LDPE shrink films involves several stages, from raw material preparation to the final product. The key steps in the manufacturing process are as follows:
Polymerization: The process begins with the polymerization of low-density polyethylene (LDPE). The polymer is produced by the reaction of ethylene monomers under specific conditions.
Extrusion: The LDPE polymer is fed into an extruder, where it is heated to a molten state and forced through a die to form a thin sheet of film. The extrusion process is crucial for determining the thickness and uniformity of the film.