In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for a composite extruder used for TAC optical protective film on LCD polarizing plates. This composite extruder has been innovatively designed for the composite processing technology of TAC film, improving production efficiency and material performance consistency.
The application of this technology will help promote the upgrading of processing equipment for optical film materials and advance the development of display material manufacturing technology.
