WHITE COVERLAY FILM AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A method for manufacturing a white cover-lay film raises reflectivity and a shielding property without an ink printing process of a flexible printed circuit board manufacturing process. CONSTITUTION: A composite for a white reflection layer is spread on a surface of an insulating base film so that the white reflection layer is formed. An inflammable adhesive is spread on the other surface of the insulating base film so that an adhesive layer is formed. A release base is laminated on an adhesive spread surface of the adhesive layer. An acrylic adhesive having heat resistance is spread on a side of the insulating base film so that a protective film is manufactured. The protective film is laminated with the white reflection layer.