NON-ADHESIVE-TYPE FLEXIBLE LAMINATE AND METHOD FOR PRODUCTION THEREOF

摘要

Disclosed is a non-adhesive-type flexible laminate comprising a polyimide film with at least one surface thereof being plasma-treated, a tie coat layer formed on the plasma-treated surface of the polyimide film and a conductive metal layer formed on the tie coat layer, wherein the ratio of the thickness (T) of the tie coat layer to the ten-point average roughness (Rz) of the plasma-treated surface of the polyimide film (i.e., the T/Rz ratio) is 2 or greater. The object is to improve the initial adhesion force which is a measure of the adhesion force and also improve the adhesion force after heat aging (i.e., after being allowed to stand in the air at 150°C for 168 hours in the air) in a non-adhesive-type flexible laminate (particularly a dual-layered flexible laminate).