ELECTROMAGNETIC WAVE SHIELDING MATERIAL, PROCESS FOR PRODUCING ELECTROMAGNETIC WAVE SHIELDING MATERIAL, AND ELECTROMAGNETIC WAVE SHIELDING MATERIAL FOR PLASMA DISPLAY PANEL

摘要

This invention provides an electromagnetic wave shielding material, which simultaneously has high electromagnetic wave shielding properties and high infrared shielding properties, and, further, a process for producing an electromagnetic wave shielding material, which is easy to form a hairline image and can produce an electromagnetic wave shielding material in a rapid and simple manner, and an electromagnetic wave shielding material for a plasma display panel using the electromagnetic wave shielding material. The electromagnetic wave shielding material comprises a support and an electrically conductive metal layer provided on the support and is characterized in that at least one of the following requirements is satisfied: (a) a porosity of the electrically conductive metal layer of not less than 0.1% and not more than 15%, (b) a gloss of the surface of the electrically conductive metal layer of not less than 50% and not more than 300%, and (c) a center line average roughness (Ra) of the surface of the electrically conductive metal layer of not less than 1 nm and not more than 50 nm.