Composite film and production method thereof

Abstract

A composite film including stacking: a first fiber layer, a metal layer with multiple holes, and a second fiber layer, a stitching structure is arranged along the horizontal direction of the first fiber layer and the second fiber layer within areas of the holes of the metal layer; and the stitching structure in each of the holes is connected, but the stitching structures in different holes are not mutually connected. The stitching structures pass through the first and second fiber layers, fortifying the stress resistance of the composite film, thereby avoid the peeling of the stacked structure from the radial direction, and with the independent stitching structure formed independently in each of the holes of the metal layer, the stitching structures would not interact with each other, so that even if a stitching structure is broken, other stitching structures are not affected, increasing the durability of the product.

Dependencies are inferred from the claim text.