A IMPROVING METHOD OF ENGRAVING EFFICIENCY

摘要

PURPOSE: A method for improving stamp efficiency is provided to improve the optical property of luminance by manufacturing a film and a filter which has improved stamp efficiency. CONSTITUTION: A method for improving stamp efficiency comprises following steps. Polymer is cooled below glass transition temperature immediately after stamping. The cooling is enabled by installing a cooling module(230) beneath a stamp roll(240). The temperature is low after stamping. The cooling module is installed in a sleeve type. The cooling module cools polymer using the cooling fan.