MOLTEN PLASTIC FILM PINNING APPARATUS AND METHOD FOR POLYAMIDE OR POLYLACTIC ACID FILM MANUFACTURING PROCESS

摘要

This invention relates to a molten plastic film pinning apparatus for polyamide (PA) or polylactic acid (PLA) film manufacturing process. The apparatus includes a die for extruding a molten plastic, a chill roll placed under the die for forming and quenching the molten plastic film to the plastic film, an air knife positioned between the die and the chill roll and above the molten plastic film first contacting the chill roll parallelly along the molten plastic film's width, and an electrostatic pinning electrode placed parallel to the air knife. This invention also relates to a molten plastic film pinning method for polyamide (PA) or polylactic acid (PLA) film manufacturing process.