COOLING EXTRUDED SHEET OR FILM

摘要

A method of manufacturing a thermoplastic resin film or sheet 2 comprises cooling at least one surface of the film or sheet extruded from a die 1 effectively and uniformly with a mixed cooling medium 5a comprising a cooling liquid 6 such as water in a form of mist having particle diameters of 10 mu or less generated by means of an ultrasonic vibrator 7, and a cooling gas 10 such as air.